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  • 1970-1974  (1,580)
  • 1965-1969
  • 1971  (1,580)
  • General Chemistry  (1,165)
  • Industrial Chemistry  (330)
  • Engineering General  (62)
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  • 1970-1974  (1,580)
  • 1965-1969
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  • 1
    Electronic Resource
    Electronic Resource
    Dendrodendritic synapses of cells that have axons: The fine structure of the Golgi type II cell in the medial geniculate body of the cat (1971)
    Springer
    Anatomy and embryology 133 (1971), S. 216-246 
    Details
    ISSN: 1432-0568
    Keywords: Neurocytology ; Synapse ; Audition ; Thalamus ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary This study provides a combined analysis with the Golgi method and electron microscopy of the Golgi type II cells of the thalamus in the cat. In the ventral nucleus of the medial geniculate body these cells constitute a large, morphologically homogeneous population of neurons. They are clearly distinguished from the thalamo-cortical neurons by their size, shape, kinds of dendritic appendages, and cytoplasmic structure. The axon of the Golgi type II cell is exceptionally short and forms a small number of lumpy endings in the vicinity of its origin. The dendrites are often longer and much more elaborately branched than the axon. The shafts of these dendrites bear spiculated appendages, while the distal ends of the dendrites form clusters of very large endings. The appendages and terminal clusters participate in the nests of axonal endings formed by the afferent auditory axons and the dendritic branches of thalamo-cortical neurons. These axonal nests are the synaptic nests observed in electron micrographs. Within the synaptic nests the endings of Golgi type II neurons form dendrodendritic synapses on the dendrites of the thalamocortical neurons. The dendritic endings of Golgi type II neurons also receive synapses from the afferent axons. The dendrodendritic synapses may involve the Golgi type II neurons in an inhibitory role in the thalamo-cortical transformation of auditory signals. The dendrodendritic endings of the Golgi type II neurons continue to grow in the adult cat. Possibly these cells are involved in the evolution of cortical functions and in the plastic changes of neural activities that modify behavior.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00528025
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  • 2
    Electronic Resource
    Electronic Resource
    Early prenatal ontogenesis of the cerebral cortex (neocortex) of the cat (Felis domestica). A Golgi study (1971)
    Springer
    Anatomy and embryology 134 (1971), S. 117-145 
    Details
    ISSN: 1432-0568
    Keywords: Prenatal ontogenesis ; Neocortex ; Cat ; Golgi study
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The neocortex of the cat undergoes a series of fundamental transformations of its fibrillar-neuronal organization during the course of early prenatal cortical ontogenesis. Some of these transformations assume structural chracteristics and neuronal features which resemble those of phylogenetically older cortical organizations. Following the arrival of corticipetal fibers at the marginal zone of the cerebral vesicle a very primitive neocortical organization, the primordial plexiform layer develops. It is characterized by the external location of the white matter with both corticipetal and a few corticofugal fibers and a few immature neurons sandwiched between the fibers. The primitive plexiform layer is present in the cat from the 20th to the 25th day of gestation. The external (superficial) location of the white matter of the primordial plexiform layer of the cat neocortex is reminiscent of the amphibian cortical organization. It also resembles other primitive structures (spinal cord) of the central nervous system. In view of its short duration and because of the immaturity of its fibrillar-neuronal elements, the primordial plexiform layer is considered to be a transient neocortical organization possibly without functional activity in the cat. The appearance of the cortical plate (25th day of gestation) causes the subdivision of the primordial plexiform layer into an outer and an inner zone. The outer zone becomes layer I and the inner zone layer VI of the neocortex. Both of these layers remain as such throughout cortical development. From the 25th to the 45th day of gestation the fibrillarneuronal structure of layers I and VI develop while the cortical plate grows, passively, by the progressive addition of new cells. The progressive fibrillar-neuronal organization of layers I and VI and the development of structural and functional interactions between them constitutes the primordial neocortical organization of the cerebral cortex of the cat. It is characterized by a superficial (layer I) and a deep (layer VI) plexiform layer composed predominantly of collaterals from the corticipetal fibers arriving at the developing cortex and by three basic types of neurons. The horizontal neurons of layer I with descending axons terminating in layer VI, and the Martinotti neurons of layer VI with ascending axons terminating in layer I, are associative neurons. The large stellate neurons of layer VI are projective neurons. The axons of these cells before entering the white matter send ascending recurrent collaterals to layer I. The fibrillar-neuronal organization of the neocortex during this gestational period (primordial neocortical organization) resembles the organization of the reptilian neocortex. It is postulated that the primordial neocortical organization of the cat is functionally active during this gestational period. The arrival of new types of afferent fibers at the lower region of the cortical plate (45th day of gestation) causes the maturation of the pyramidal neurons of this region of the neocortex. These neurons are recognized at this age as the pyramidal neurons of layer V of the neocortex of the cat. The appearance of these afferent fibers and the maturation of the pyramidal neurons of layer V marks the transformation of the neocortex from its primitive reptilian structure into a distinctly mammalian organization. It is postulated that the cortical plate (pyramidal plate) is a recent addition in neocortical phylogeny representing a mammalian transformation. An analogy seems to exists among the pyramid-like neurons of the amphibian cortex, the pyramid-like neurons of the reptilian neocortex and the pyramid-like neurons (stellate) of layer VI of the mammalian neocortex. This analogy differs from the classical one postulated by Cajal which includes the pyramidal neurons of the mammalian neocortex, which are here considered as recent additions to neocortical phylogeny and hence as distinct mammalian neurons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00519296
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  • 3
    Electronic Resource
    Electronic Resource
    Origin and termination of cuneocerebellar tract (1971)
    Springer
    Experimental brain research 13 (1971), S. 339-358 
    Details
    ISSN: 1432-1106
    Keywords: Cuneocerebellar tract ; External cuneate nucleus ; Main cuneate nucleus ; Cerebellum ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary 1. The origin and termination was determined for cells belonging to the cuneocerebellar tract in the cat, which consists of one proprioceptive component (P-CCT) activated by group I muscle afferents and one exteroceptive component (E-CCT) activated by cutaneous afferents. The recording sites of the cells were histologically verified and the termination of the axons assessed by antidromic activation from the cerebellar surface. 2. The P-CCT originates from cells in the external cuneate nucleus, where forelimb muscles are somatotopically represented. The observations suggest that practically all cells in this nucleus project to the cerebellum and are activated by muscle afferents. 3. The E-CCT originates from cells in the rostral part of the main cuneate nucleus, where they occur intermingled with lemniscal neurones. 4. The CCT terminates in the pars intermedia of lobule V of the anterior lobe and in the four rostral folia of the paramedian lobule. The majority of the cells send one branch to each projection area. 5. The P-CCT and E-CCT terminate in the same projection areas. 6. CCT neurones activated from distal and proximal parts of the limb terminate diffusely in the entire projection area, although there is some tendency for neurones activated from distal parts to terminate caudally and for neurones activated from proximal parts to terminate rostrally.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00234336
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  • 4
    Electronic Resource
    Electronic Resource
    Optic nerve axon diameters measured in the cat retina: Some functional considerations (1971)
    Springer
    Experimental brain research 13 (1971), S. 498-503 
    Details
    ISSN: 1432-1106
    Keywords: Optic nerve ; Retina ; Axon diameters ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Because of the arrangement of axon bundles in the fibre layer of the cat's retina, it is possible to obtain electronmicroscopic sections of axon bundles which contain exclusively either axons arising from the area centralis, or axons arising from peripheral retina. From electronmicrographs of such sections we have constructed axon diameter spectra for central and peripheral axon samples. The centrally originating axons are markedly smaller than peripheral axons, in good agreement with their slower conduction velocity (described in an accompanying paper). The diameter spectra of both peripheral and area centralis axon samples are unimodal, in contrast to the two conduction velocity groups known to exist within each axon population. Alternative explanations of this discrepancy between diameter and conduction velocity spectra are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00234280
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  • 5
    Electronic Resource
    Electronic Resource
    Excitation and depression of cortical neurones during spreading depression (1971)
    Springer
    Experimental brain research 12 (1971), S. 132-149 
    Details
    ISSN: 1432-1106
    Keywords: Cerebral cortex ; Spreading Depression ; Glutamic acid ; Excitation ; Depression ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Variations in the excitability of individual cortical neurones during the invasion of spreading depression (SD) have been monitored by observing the alterations of spontaneous and L-glutamate-induced firing. Invasion of many neurones during SD is marked by a brief burst of firing which occurs concurrently with the onset of the negative slow extracellular potential. Other neurones do not fire, although the microelectrode records a negative slow wave. Depression of glutamate-induced and spontaneous firing follows and may last for several minutes. The initial loss of excitability of those neurones that discharge during SD invasion may be due to excessive depolarization. This phase is rapidly succeeded by a period of depressed excitability, during which the neurones can be invaded by an antidromic spike or excited by increased amounts of L-glutamate. These findings indicate that SD propagation initially involves the release of an excitant substance, possibly glutamic acid. The continuing effects of SD are due to the reduction in cell excitability. As many neurones are depressed without undergoing an initial excitation, it appears that a depressant substance is also involved. This may be gamma-aminobutyric acid.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00234311
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  • 6
    Electronic Resource
    Electronic Resource
    Excitability changes of extensor motoneurons and primary afferent endings during prolonged stimulation of flexor afferents (1971)
    Springer
    Experimental brain research 12 (1971), S. 150-160 
    Details
    ISSN: 1432-1106
    Keywords: Monosynaptic response ; Primary afferent depolarization ; Spinal cord ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Long trains of electrical stimuli supramaximal for Group I fibers of PBST nerves were used to study the effect on GS pathway. Inhibition of GS monosynaptic response occurred during PBST stimulation: however, decline in the inhibition developed with time despite the constancy of the inhibitory input monitored from the dorsal root. The level of recovery of the monosynaptic reflex at steady state depended upon the frequency of PBST stimulation, the higher the frequency the more complete the recovery. The effect of increasing the frequency of GS stimulation was to increase the inhibitory effect from PBST. Enhanced excitability of GS primary afferent endings in monosynaptic contact with homonymous motoneurons occurred and decreased parallel to the recovery of the monosynaptic response. When present, the polysynaptic response evoked by stimulating GS peripheral nerves increased during PBST stimulation in an inverse relation to changes in the monosynaptic response. Intracellular recordings from GS motoneurons usually revealed no change in membrane potential or in excitability of postsynaptic membrane to direct stimulation. Increased delay of intracellular GS spike potential was observed during PBST stimulation. The amount of this shift can be accounted for by polysynaptic activation of the same motoneuron.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00234312
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  • 7
    Electronic Resource
    Electronic Resource
    Observations on synaptic patterns in the dorsal lateral geniculate nucleus of the cat: The C laminae and the perikaryal synapses (1971)
    Springer
    Experimental brain research 12 (1971), S. 184-203 
    Details
    ISSN: 1432-1106
    Keywords: Lateral geniculate ; Cat ; Synapse
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The laminae near the optic tract which have previously been described as C, C1 and C2, have been studied electron microscopically and compared ] to the A laminae. In the A laminae most of the presumed retinogeniculate axons end in encapsulated synaptic zones that contain multiple interconnected synaptic profiles. Only a few of these axons form simple axodendritic synapses upon proximal dendritic segments of the largest cells. In the C laminae the situation is reversed. Most of the retinogeniculate axons end as simple synapses upon medium or small dendrites and few end in encapsulated synaptic zones. Further, these zones are simpler in the C laminae than in the A laminae. The neuronal profiles are smallest and the synaptic interconnections appear to be least complex in lamina C2, where there are only a few, small, presumed retinogeniculate terminals. Of the three C laminae, lamina C, furthest from the optic tract, shows the largest profiles and the most complex interconnections. Bundles of very fine axons occur in all the laminae, but they dominate the regions closest to the optic tract (lamina C2) where they tend to run parallel to the lamina. Some of the largest cells in laminae A, A1 and C are contacted by very fine perisomatic axons which contain round vesicles. These axons have not been described before and are likely to represent an input too fine to have been demonstrable by light microscopical methods.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00234315
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  • 8
    Electronic Resource
    Electronic Resource
    The termination of the spinothalamic tract in the cat an experimental study with silver impregnation methods (1971)
    Springer
    Experimental brain research 12 (1971), S. 331-353 
    Details
    ISSN: 1432-1106
    Keywords: Spinal cord ; Thalamus ; Silver methods ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The termination of the spinothalamic tract (STT) in the cat has been studied light microscopically in Fink-Heimer and Nauta impregnated sections. Following lesions of the STT at various rostrocaudal levels of the spinal cord the degenerating fibres in the thalamus and subthalamus were mapped, mainly in transverse sections. The cervicothalamic tract was not injured by the lesions. The spinothalamic fibres enter the diencephalon through the mesencephalic reticular formation and terminate in the following regions: the medial portion of the magnocellular part of the medial geniculate body (MGmc), the ventrolateral portion of the medial part of the posterior nuclear complex (POm), the caudolateral and medial parts of the zona incerta (ZI), the nucleus centralis medialis (CeM), the nucleus parafascicularis (Pf), the lateral part of the nucleus centralis lateralis (CL), the medial and rostrolateral parts of the nucleus ventralis lateralis (VL). To reach these regions the fibres pass through the nucleus centrum medianum (CM), the nucleus subparafascicularis (SPf) and the nucleus paracentralis (Pc). The fibres that terminate in the VL pass through Forel's field H1 and the external medullated lamina (EML). Conclusive results were not obtained concerning a termination in the CM. The spinothalamic fibres do not pass through nor terminate in the nucleus ventralis posterolateralis (VPL) and the nucleus reticularis (R). The VPL, defined as that portion of the ventral thalamus that receives terminal fibres from the dorsal column nuclei, has been found to extend rostrally only as far as Horsley-Clarke level anterior 10.5. The results strongly support the view that all the spinothalamic fibres terminate ipsilateral to their course in the ventral quadrant of the spinal cord. No signs of a somatotopical organization of the termination of the STT were found.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00234489
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  • 9
    Electronic Resource
    Electronic Resource
    Modification of the distribution of receptive field orientation in cats by selective visual exposure during development (1971)
    Springer
    Experimental brain research 12 (1971), S. 509-527 
    Details
    ISSN: 1432-1106
    Keywords: Visual cortex ; Receptive fields ; Visual deprivation ; Neuronal plasticity ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A novel procedure was used to rear kittens under conditions of controlled visual experience: one eye was exposed only to vertical lines while the other eye, simultaneously, was exposed only to horizontal lines. Stimuli were presented in a mask which the animals wore whenever they were in a lighted environment. At the conclusion of the rearing period elongated receptive fields of units recorded from the visual cortex of these animals were oriented either horizontally or vertically. This is in contrast to the full complement of receptive field orientations found in normal cats. Furthermore, units with vertically oriented fields were predominantly or exclusively activated by the eye which had been exposed to vertical lines, while neurons with horizontally oriented fields were predominantly or exclusively activated by the eye which had been exposed to horizontal lines. Normally, 80–90% of the neurons in the visual cortex of the cat are activated by both eyes. The consequences of this controlled visual experience provide evidence for highly selective modification of neuronal connectivity by environmental conditions prevailing during development. Sufficient control of the visual environment was achieved to allow direct comparison between single unit response characteristics and the specific stimuli presented during rearing.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00234246
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  • 10
    Electronic Resource
    Electronic Resource
    Effects of fenfluramine on sleep-wakefulness in cats (1971)
    Springer
    Psychopharmacology 20 (1971), S. 1-9 
    Details
    ISSN: 1432-2072
    Keywords: Fenfluramine ; Amphetamine ; Paradoxical Sleep ; Slow-Wave Sleep ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Five cats were prepared with chronically implanted electrodes for recording sleep-wakefulness patterns. Four of these animals received fenfluramine at each of three dose levels and data was recorded for the following 12 hours. Percent of time in paradoxical sleep was significantly reduced by 2.5 and 7.5 mg/kg, but not by 0.5 mg/kg, of fenfluramine. The higher doses also increased slow-wave sleep and, at 7.5 mg/kg (an anorexigenic dose), total sleep time was significantly increased. Under similar conditions amphetamine, at an anorexigenic dose of 1 mg/kg, significantly suppressed both paradoxical sleep and slow-wave sleep in three cats. Rebound of paradoxical sleep after suppression induced by 2.5 mg/kg of fenfluramine was not seen in either of two cats studied when sleep patterns were recorded for 48 hours. After 7.5 mg/kg of the drug, however, rebound was seen on days 3 and 4 after suppression of paradoxical sleep which lasted for over 26 hours. In two animals, daily administration of 2.5 mg/kg of fenfluramine for 16 consecutive days, followed by saline administration for three days, indicated that tolerance was developing to the suppression of paradoxical sleep produced by the drug.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00404052
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  • 11
    Electronic Resource
    Electronic Resource
    Mossy and climbing fibre activation in the cat cerebellum by stimulation of the labyrinth (1971)
    Springer
    Experimental brain research 12 (1971), S. 1-17 
    Details
    ISSN: 1432-1106
    Keywords: Purkinje cell ; Mossy fibres ; Climbing fibres ; Vestibular system ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In decerebrate cats, caloric and galvanic stimulations of the labyrinth were able to modulate the activity of the Purkinje cells through both the afferents which terminate in the cerebellar cortex as mossy fibres and climbing fibres. In response to these stimulations, several patterns of response were seen. For the galvanic stimulation a predominant pattern was described. In most cases the mossy fibre driven activity had an effect which was opposite to that of the climbing fibre one. The climbing fibre driven activity could be modulated only in the low frequency range, but it can interfere remarkably with the mossy fibre one. The results described were obtained not only in the so-called vestibular area of the cerebellum, but also in other areas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00234413
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  • 12
    Electronic Resource
    Electronic Resource
    Organization of afferent connections to cuneocerebellar tract (1971)
    Springer
    Experimental brain research 13 (1971), S. 359-377 
    Details
    ISSN: 1432-1106
    Keywords: Cuneocerebellar tract ; Proprioceptive path ; Exteroceptive path ; Cerebellum ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary 1. The afferent connections to 180 cuneocerebellar tract (CCT) neurones were studied in the cat. The neurones were classified into two groups, proprioceptive and exteroceptive. 2. The proprioceptive neurones (P-CCT) occurred in the external cuneate nucleus and were monosynaptically activated by group I muscle afferents. About 60% of these neurones received additional excitation from group II muscle afferents. 3. The P-CCT neurones received excitation from one nerve only. 4. The P-CCT neurones received postsynaptic inhibition from muscle nerves not supplying excitation. 5. The exteroceptive neurones (E-CCT) occurred in the main cuneate nucleus and received di- and polysynaptic excitation from cutaneous afferents. Most neurones received additional excitation from high threshold muscle afferents. The latter originated from receptors that were sometimes activated by pressure against deep structures but seldom, if ever, from slowly adapting stretch receptors in muscle. 6. The E-CCT neurones were usually activated from several skin and muscle nerves. 7. Stimulation of the sensorimotor area of the cerebral cortex evoked inhibition in some P-CCT neurones and excitation and/or inhibition in some E-CCT neurones. 8. The afferent organization of the CCT is compared with that of the dorsal spinocerebellar tract. The information carried by the two tracts is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00234337
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  • 13
    Electronic Resource
    Electronic Resource
    Conduction velocity groups in the cat's optic nerve classified according to their retinal origin (1971)
    Springer
    Experimental brain research 13 (1971), S. 489-497 
    Details
    ISSN: 1432-1106
    Keywords: Conduction velocity ; Cat ; Retina ; Optic nerv
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary By recording antidromic field potentials and unit responses generated in the retina by stimulation of the optic tract and optic disc, evidence was obtained which suggests the presence of four major conduction velocity groups in the cat's optic nerve. The axons from all peripheral retina appear to fall into two groups, fast and slow, which correspond to the two major velocity groups described by earlier workers. Evidence is presented that the axons which arise from the area centralis form two distinctly slower conduction velocity groups. For each conduction velocity group, and for 60 single units, conduction velocity was estimated for both the intraretinal (unmyelinated) and extraretinal (myelinated) segments of the axons. All axons encountered accelerated markedly on leaving the retina. An anatomical basis for the classification of conduction velocity groups is presented in an accompanying paper.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00234279
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  • 14
    Electronic Resource
    Electronic Resource
    Lateral geniculate unit activity and eye movements: Saccade-locked changes in dark and in light (1971)
    Springer
    Experimental brain research 13 (1971), S. 533-546 
    Details
    ISSN: 1432-1106
    Keywords: Lateral geniculate body ; Eye movements ; Corollary discharge ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The activity of 83 single lateral geniculate body (LGB) neurons was recorded in encéphale isolé cats, during nystagmic eye movements induced as an after-effect of electrical stimulation of the lateral vestibular nucleus. Phasic changes in firing, time-locked with the eye movements were found in 66% of the neurons, by a method using the saccades to trigger a post-“saccadic”-time histogram of the corresponding neuronal discharge. In 51% of the neurons, a saccadelocked change was significant even in complete darkness. The onset of the postsaccadic change showed an average latency of about 100 msec from the onset of the movement. The change could be either an increase, or a decrease in firing in both light and dark, or a change evident in one condition only, or even a reversal of the pattern of the change by shifting from one condition to the other. The results are discussed in connection with theories on visuo-motor mechanisms that counteract illusory shifts of visual field during active eye movements. The saccadelocked influences on LGB dark activity strongly support the Helmholtz-Teuber notion of “corollary discharges” modifying the activity of visual centers during eye movements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00234284
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  • 15
    Electronic Resource
    Electronic Resource
    Influence of stimulation of the cerebral cortex on vestibular nuclei units in the cat (1971)
    Springer
    Experimental brain research 14 (1971), S. 77-94 
    Details
    ISSN: 1432-1106
    Keywords: Vestibular nuclei units ; Descending influence from cortical areas 2 pri and 6aδ ; Converging multisynaptic pathway ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In cats under subhypnotic doses of a-chloralose and pentobarbital the descending action of circumscribed cortical stimulation on the unit activity in the vestibular nuclei was investigated. From a total of 215 units distributed through the middle areas of the vestibular nuclei, 61 units responded — 59 with facilitation and 2 with inhibition. No discernible relationship between units responding to horizontal rotation and those responding to cortical stimulation was demonstrated. Most responsive neurons within the vestibular nuclei were in the internal part of the triangular and the parvocellular and ventral subdivisions of Deiters' nucleus, whereas its dorsal part and the medial vestibular nucleus were virtually free of cortically excitable units. Stimulation of both ipsilateral and contralateral area 2 pri, on the anterior ectosylvian gyri, and area 6aδ, hidden in the cruciate sulcus, was effective, while stimulation of the surface parts of area 6 and of area 4 was not. This response may be conducted via converging multisynaptic pathways to a midbrain area, possibly to the nuclei of the direction-specific eye and head movements, and from there to the vestibular nuclei.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00234912
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  • 16
    Electronic Resource
    Electronic Resource
    Methamphetamine effects upon avoidance behavior during limbic seizures in the cat (1971)
    Springer
    Psychopharmacology 21 (1971), S. 390-400 
    Details
    ISSN: 1432-2072
    Keywords: Methamphetamine ; Septal Stimulation ; Limbic Seizures ; Septal after-Discharge ; Shock Avoidance ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract It was predicted that methamphetamine administered to nine adult male cats would counteract the debilitating effects of electrically-induced septal after-discharges (seizures) upon learned shock avoidance. Performance was assessed in terms of number of avoidance responses and their latencies. Septal after-discharges of over five seconds duration resulted in the predicted deterioration of avoidance performance. Under the dosage (1.5 mg/kg) and conditions employed in the present experiment, methamphetamine appeared to enhance, rather than counteract, this effect. Methamphetamine alone had mixed effects upon avoidance behavior: there was less tendency for animals to “freeze” in response to the CS, but subjects appeared confused and disoriented. There was a greater likelihood of occurrence of after-discharges when methamphetamine was used in conjunction with electrical stimulation of the septum.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02419062
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  • 17
    Electronic Resource
    Electronic Resource
    Carotid body oxygen consumption of the catin vitro (1971)
    Springer
    Pflügers Archiv 323 (1971), S. 315-322 
    Details
    ISSN: 1432-2013
    Keywords: Chemoreceptors ; Carotid Body ; Cat ; Oxygen Consumption ; Schlüsselwörter ; Chemoreceptoren ; Glomus caroticum ; Katze ; Sauerstoffverbrauch
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The oxygen consumption of the cat carotid body has been measuredin vitro using a confinement method. The oxygen consumption of the organ appears to be very high (1.14 ml STPD·min−1 per gram of dried tissue). The carotid body dry mass (0.044 mg) was much lower than the values found in the literature. The O2 consumption versus O2 tension relationship of this small organ shows no critical points as other organs generally do.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00592402
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  • 18
    Electronic Resource
    Electronic Resource
    Changes in firing rates of extensor motoneurones caused by electrically increased spinal inputs (1971)
    Springer
    Pflügers Archiv 326 (1971), S. 35-47 
    Details
    ISSN: 1432-2013
    Keywords: Extensor Motoneurones ; Synaptic Activation ; Inhibition ; Spinal Cord ; Cat ; Extensor-Motoneuren ; Synaptische Erregung ; Hemmung ; Rückenmark ; Katze
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung 1. Veränderungen in repetitiven Entladungsmustern der extensor Alpha-Motoneuren während afferenter Tetanisationen mit verschiedenen Reizstärken und Reizfrequenzen wurden bei decerebrierten Katzen untersucht. 2. Die Motoneuren wurden durch Teilung der Ventralwurzeln bei Tetanizationen des ipsilateralen N. gastrocnemius mit 100–200 Hz funktionell isoliert. Nach Amplituden der extracellulär abgeleiteten Spikes wurden die Motoneuren zu “großen” und “kleinen” angeordnet. Die Anzahl der aktivierten afferenten Fasern wurde durch die Steigerung der Reizstärke gesteigert. 3. Kleine Motoneuren waren immer tonisch; große Motoneuren waren im allgemeinen phasisch, selten tonisch. Die Schwelle für tonische Entladungen lag höher bei großen Motoneuren als bei kleinen. 4. Hochfrequente Tetanisationen (150–200 Hz) des N. gastrocnemius verursachte eine Aktivitätsabnahme bei großen Motoneuren; dabei blieb die Entladungsfrequenz der kleinen Motoneuren unverändert oder war öfters leicht gesteigert. 5. Die Steigerung der Zahl der tetanisierten afferenten Fasern bei unveränderten Reizfrequenzen verursachte eine Abnahme des Entladungsrates der kleinen tonischen Motoneuren oder wandelte sie zu den phasischen um; die Entladungsfrequenz der großen Motoneuren wurde durch diese Prozedur gesteigert. 6. Möglichkeiten, welche die Unterschiede in Entladungsmustern der großen und kleinen Motoneuren während afferenter Tetanisationen mit verschiedenen Reizstärken und Reizfrequenzen verursachen können, werden diskutiert.
    Notes: Summary 1. Variations in repetitive firing patterns of extensor alpha motoneurones caused by afferent tetanizations at different intensity and frequencies were investigated in decerebrated cats. 2. Motoneuronal units were isolated by dividing ventral roots and tetanization of the ipsilateral gastrocnemius nerves with 100–200 Hz. The amplitude of extracellularly recorded spikes of motoneurones was used for classifying them as “large” or “small”. The number of activated afferent fibres was increased by increasing the stimulus intensity. 3. Small-amplitude motoneuronal units were always tonic; large-amplitude motoneuronal units were generally phasic, rarely tonic. The threshold for tonic firing was higher in large-amplitude units than in small-amplitude units. 4. High frequency afferent tetanization (150–200 Hz) caused depression in activities of large-amplitude motoneuronal units; discharge frequencies of small-amplitude motoneuronal units remained unchanged or were often slightly increased during such stimulations. 5. Increasing the number of afferent fibres tetanized at unchanged frequencies caused a decrease in firing rates of tonically discharging small-amplitude motoneuronal units or changed them to a phasic type of motoneurones; discharge frequencies of large-amplitude motoneuronal units were increased by this procedure. 6. Possibilities which can cause the differences in firing patterns of small- and large-amplitude motoneuronal units during afferent tetanizations at various stimulus intensities and frequencies are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00586793
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    The lateral cervical nucleus in the cat (1971)
    Springer
    Cell & tissue research 115 (1971), S. 377-387 
    Details
    ISSN: 1432-0878
    Keywords: Lateral cervical nucleus ; Cat ; Quantitative study ; Ultrastructural investigation-Neuron
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Profiles of 14 neurons all sectioned through the nucleolar plane and 87 isolated dendritic profiles have been analyzed with respect to the surface area covered by boutons and astroglial processes. This analysis has revealed two different types of neurons within the lateral cervical nucleus (LCN) of the cat. The cell types also differ in other ultrastructural respects. One type, which probably consists of projection neurons, is characterized by a rather large size, a relatively small nucleus, numerous mitochondria, well developed granular and agranular endoplasmic reticulum. The cell membrane of these cells shows somatic spines and the perikaryon is covered with boutons to a mean extent of 42%. The other cell type, which probably is internuncial, is smaller, has a proportionally larger nucleus, few mitochondria and a poorly developed granular and agranular endoplasmic reticulum. These cells show no somatic spines and the perikaryal membrane is covered with boutons to an extent of about 10%. Also the bouton populations contacting the two cell types differ from one another. The proportion of internuncial neurons within the LCN has been estimated to about 8%. The internuncial neurons seem to have no preferential localization. The primary dendrites of the projection neurons have a bouton covering of about 48%. No proportional differences in covering could be revealed between different sizes of dendrites. The results are discussed in relation to what is known about the anatomical and physiological organization of the LCN, and also compared with the results obtained in other similar investigations on other parts of the central nervous system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00324940
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    The synaptic organization in the medial geniculate body of afferent fibres ascending from the inferior colliculus (1971)
    Springer
    Cell & tissue research 113 (1971), S. 44-66 
    Details
    ISSN: 1432-0878
    Keywords: Ventral nucleus of medial geniculate body-Synaptic patterns ; Experimental degeneration ; Collicular afferents ; Cell laminae ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The ventral nucleus of the medial geniculate body has been examined electron microscopically 2–5 days after destruction of the inferior colliculus. In both the ipsi- and contralateral ventral nuclei, degenerating collicular afferents are of medium diameter (1–5 μ) and their degenerating terminals are distributed mainly to synaptic aggregations (“glomeruli”) in which they end axo-axonically and axo-dendritically. Their distribution and mode of termination indicates that these terminals belong to a class which in normal material is large, contains round synaptic vesicles and ends by means of asymmetrical synaptic complexes upon dendrites and upon the second (“pale”) type of glomerular terminal. It also ends by means of “adhesion plaques” on the same dendrites. As the terminals of corticothalamic afferents to the nucleus are already known, only the origin of two types remains to be determined: the pale terminals, which arise from structures resembling dendrites and which end only axo-dendritically, and a small, less common terminal which ends axo-axonically, axo-dendritically and axo-somatically. Both types contain flattened synaptic vesicles and end by means of symmetrical synaptic complexes. Correlative Nauta and Golgi studies suggest that the collicular afferents have a very specific spatial distribution within the cellular laminae composing the ventral nucleus. The terminal degeneration commences as a neurofilamentous hyperplasia and quickly passes to one of increased electron density. There is evidence for early removal of degenerating terminals from the postsynaptic membrane.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00331201
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    Beitrag zur Kenntnis der Glomera coronaria der Katze (1971)
    Springer
    Cell & tissue research 118 (1971), S. 532-554 
    Details
    ISSN: 1432-0878
    Keywords: Glomera coronaria ; Cat ; Chemoreceptor cell ; Blood supply ; Synapses
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Zusammenfassung Die Gefäße der zwischen Aorta ascendens und Truncus pulmonalis, an der Vorder- und Hinterwand des Truncus pulmonalis gelegenen Glomera, sowie das sogenannte „Glomus pulmonale“ der Katze lassen sich von den Coronararterien aus durch Tusche-Gelatine-Lösungen füllen. Die erwähnten Paraganglien sind als Chemoreceptorenfelder dem Coronarkreislauf angeschlossen und daher als Glomera coronaria zu bezeichnen. Licht- und elektronenmikroskopische Untersuchungen ergaben eine morphologische Übereinstimmung mit dem Glomus caroticum. Vagusdurchtrennungen verursachen eine Degeneration der an den Glomuszellen gelegenen synaptischen Formationen sowie Veränderungen in Glomuszellen.
    Notes: Summary The vessels of the glomera that lie between the aorta and the pulmonary trunk, on the anterior and posterior wall of the pulmonary trunk, as well as the so-called glomus pulmonale of the cat have been injected with gelatine-india ink mixture. The paraganglia mentioned above are associated with the coronary circulation as chemoreceptors and are designated as the glomera coronaria. The investigations demonstrate a morphologic similarity with the glomus caroticum. Section of the vagus causes a degeneration of the synaptic structures on the glomus cells as well as changes in the cells themselves.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00324619
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    Effects of estrogen on the cat hypothalamus (1971)
    Springer
    Cell & tissue research 117 (1971), S. 76-86 
    Details
    ISSN: 1432-0878
    Keywords: Hypothalamus ; Cat ; Estrogen effects ; Ultrastructure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary In this study the ultrastructural features of tissue from the posterior hypothalamic area were investigated. Ovariectomized cats which were either treated with sesame oil placebo or with estrogen for varying periods of time were used. The following observations were noted. 1. The cat that was treated with placebo one month after ovariectomy showed an increase in the number of dense core (granulated) vesicles within neuronal cytoplasm. This observation was not apparent in the cats which were treated with estrogen one month after ovariectomy. 2. In the cat that had been Ovariectomized for two months before treatment with placebo was initiated, axon terminals contained more dense core vesicles than were observed in axonal endings from estrogen-treated cats in the two month ovariectomy group. 3. The tissue from cats that were continuously treated with estrogen for one month after ovariectomy displayed dense-core vesicles in both somata and neuropil. It is suggested that the ultrastructural changes observed were dependent on both the time of initiation and the length of estrogen treatment. 4. It is concluded that the preliminary observations in this study provide anatomical evidence suggesting that estrogen level in the cat may affect the functional activity of the posterior hypothalamic area.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00331103
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    Über die Bedeutung des Narkoticums für funktionelle Untersuchungen an der Katzenharnblase (1971)
    Springer
    Clinical and experimental medicine 155 (1971), S. 187-194 
    Details
    ISSN: 1591-9528
    Keywords: Chloralose ; Urethane ; Bladder function ; Isometric determinations ; Cat ; Chloralose ; Urethan ; Blasenfunktion ; Isometrische Untersuchungen ; Katze
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei isometrischen Untersuchungen von Funktionsabläufen an Katzenharnblasen wurde bei 10 mit Urethan und 49 mit Chloralose narkotisierten Tieren eine eindeutige Dämpfung der Blasenfunktion durch Urethan gefunden. Diese trat bereits ab 50 mg Urethan/kg i.v. auf. Für funktionelle Untersuchungen des Blasenwandmuskels wird daher Chloralose 60 mg/kg i.p. empfohlen.
    Notes: Summary The influence of two anaesthetic agents (urethane and chloralose) on isometrically determined bladder function was compared in the cat. Even if the animal still showed pronounced muscle reflexes urethane (50 mg/kg and more) clearly impaired bladder function in the phase of collection and also the micturition reflex. Chloralose, even when applied in an anaesthetic dose (60 mg/kg i.p.) did not influence bladder function whatsoever. For this reason chloralose is preferable as an anaesthetic agent in functional experiments on the detrusor muscle of the cat.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02047607
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    Finite element method applied to the problem of stability of a non-conservative system (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 63-87 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The finite element method is applied to the stability analysis of structural systems subject to non-conservative forces. The development of the method is general, but the specific application considered here is the stability of thin-walled members subject to follower forces. The method predicts the type of instability, whether it be buckling or flutter. Example problems, for which exact solutions are known, illustrate the accuracy and convergence characteristic of the finite element formulation.
    Additional Material: 10 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030110
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    Dynamic analysis of structures using the rank force method (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 103-117 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The application of the finite element rank force method for the dynamic analysis of redundant structures is presented. The applied loading consists of discrete and distributed loads. Both forced and free vibrations are considered, the latter yielding latent vectors corresponding to dynamic redundancies.It is shown that the dynamic properties of an element are given by a static flexibility matrix, an inverse mass matrix, a damping parameter and a displacement vector representing the effect of the applied distributed loading.
    Additional Material: 5 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030112
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    An annular segment finite element for plate bending (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 119-129 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A stiffness matrix for a finite element having the planform of an annular segment is derived using the displacement approach. Numerical problems involved in the derivation are discussed and rapid convergence to exact solutions is demonstrated on three sample problems. It is concluded that the new element will be of great value to engineers concerned with the analysis of slabs of bridge decks curved in plan.
    Additional Material: 8 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030113
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    Stress and deformation analysis of fibrous composite materials by point matching (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 89-101 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The point matching numerical method and its generalization, the method of boundary point least squares, have been successfully applied to numerous boundary value and eigenvalue problems. The present paper demonstrates the application of these techniques to problems in the micromechanics of fibrous composite materials, i.e. determination of elastic moduli and stress concentrations for parallel-fibre materials which are loaded transversely with respect to the fibres. The solution technique utilizes exact solutions of the governing equations of plane elasticity for each component fibre and its surrounding matrix material in a typical repeating section of the composite material. The continuity conditions for stresses and displacements between fibre and matrix and the repeatability conditions at the boundary of the repeating section are satisfied approximately in a pointwise manner. Some special numerical techniques which were found to be particularly useful in applying the point matching method to these problems are delineated. The method is demonstrated for composite materials having circular, elliptical and square fibres in regular, staggered arrays. Numerical results are given which show the accuracy of the method as well as stress concentration and composite elastic moduli data.
    Additional Material: 4 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030111
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    Concave programming and piece-wise linear programming (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 131-144 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: This paper discusses the mathematical foundations of a technique that has been used extensively in structural optimization.1-6 Two basic problems are considered. The first of these is the concave programming problem which consists of finding the global minimum of ‘piece-wise concave functions’ on ‘piece-wise concave sets’. Since any function can be approximated by a piece-wise concave function, this method could in principle be used to find the global minimum in non-convex optimization problems. The second one is the piece-wise linear programming problem in which the objective function is convex and piece-wise linear. The iterative method outlined for handling this problem is shown to be much more efficient than the standard simplex method of linear programming.
    Additional Material: 13 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030114
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    A frontal solution program for finite element analysisB. M. Irons, ‘A frontal solution program for finite element analysis’, Int. J. num. Meth. Engng, 2, 5-32 (1970). (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 149-149 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030116
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    Editorial notice (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 154-154 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030202
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    Reduced integration technique in general analysis of plates and shells (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 275-290 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The solution of plate and shell problems by an independent specification of slopes and middle surface displacements is attractive due to its simplicity and ability of reproducing shear deformation. Unfortunately elements of this type are much too stiff when thickness is reduced.In an earlier paper a derivation of such an element was presented1 which proved very successful in ‘thick’ situations. Here a very simple extension is made which allows the element to be economically used in all situations.The improved flexibility is achieved simply by reducing the order of numerical integration applied to certain terms without sacrificing convergence properties. The process is of very wide applicability in improvement of element properties.
    Additional Material: 10 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030211
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    Masthead (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971) 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030301
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    Discussion of paperS. Gallof and B. Kaplan, ‘Numerical solution and utilization of Green's functions,’ Int. J. num. Meth. Engng, 1, 169-175 (1969). by S. Gallof and B. Kaplan (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 295-296 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030214
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    A static and dynamic finite element shell analysis with experimental verification (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 299-315 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A system of finite element shell analysis codes, called SABOR/DRASTIC, is used to analyse a complex two-layered shell of revolution under static and dynamic asymmetric loads. The dynamic analysis is compared with experimentally measured response. In this linear elastic analysis, emphasis is placed on the inherent flexibility of the finite element method in modelling the complex structural geometry of a given test specimen. Static studies, which involve variations in important shell parameters, and dynamic studies, which provide a successful correlation with experiment, are used to illustrate both the detail and the generality with which shell analyses may now be performed with confidence.
    Additional Material: 11 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030302
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    On the calculation of consistent stress distributions in finite element approximations (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 317-325 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The theory of conjugate approximations1 is used to obtain consistent approximations of stress fields in finite element approximations based on displacement assumptions. These consistent stresses are continuous across interelement boundaries and involve less mean error than those computed by the conventional approach.
    Additional Material: 1 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030303
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    Generation of two- and three-dimensional finite elements (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 327-347 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: Many of the known finite elements are based on a variational procedure in a functional basis of monomials. The present paper attempts to formulate completely a finite element procedure which is non-variational on a functional basis which is left to the choice of the user.
    Additional Material: 5 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030304
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    Discussion of paperSuryanarayan Patnaik and Pasala Dayaratnam, ‘Behaviour and design of pin connected structures’, Int. J. num. Meth. Engng, 2, 579-595 (1970). by Suryanarayan Patnaik and Pasala Dayaratnam (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 443-444 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030312
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    Network-topological formulation of analysis and design of rigid-plastic framed structures (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 425-441 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A unified network-topological approach to the formulation and solution of the analysis and minimum weight design of rigid-plastic structural systems is presented. It is shown that both analysis and design can be formulated using network concepts, but that, in contrast to elastic networks, the formulation results in a mathematical programming problem. Formulations based both on the static and kinematic theorems of plasticity are presented, and it is shown that duality guarantees that the two types of formulation yield identical results. The problem is first formulated on the basis of a simple definition of yielding, and is then generalized to the case where yielding is defined in terms of a yield surface.
    Additional Material: 4 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030311
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    Non-linear structural analysis by dynamic relaxation (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 463-483 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: Dynamic relaxation, an iterative method for use with digital computers, is described and is shown to be suitable for the solution of a system of linear equations and in particular for such problems derived from structural frame analysis. It is further shown that the method may be modified to include non-linear equations relating to these problems.Some specific examples of linear and non-linear solutions are given and comparisons are made with another computer method which performs the same tasks.
    Additional Material: 12 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030403
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    A finite-deflection analysis of shallow arches by the discrete element methodThis paper is Crown copyright and is reproduced here with the permission of the Controller, Her Majesty's Stationery Office. (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 529-552 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The discrete element displacement method is used to analyse the finite-deflection behaviour of shallow arches. The arches are idealized as assemblies of shallow curved elements and the necessary properties of the displacement patterns in these elements are discussed. Numerical solutions of the geometrically non-linear problem are obtained by directly minimizing the total potential energy of the system.
    Additional Material: 9 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030408
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    Global-local finite element (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 565-574 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: Finite element procedures usually require more degrees of freedom for a specified accuracy than does a classical Ritz procedure if suitable coordinate functions are available. This paper develops a combined global and local dependent variable representation which couples the conventional and finite element Ritz methods. This hybrid method preserves much of the flexibility of the finite element method while increasing the solution accuracy for a specified system order. The method is illustrated by examination of a beam and a plate vibration problem.
    Additional Material: 5 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030410
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    A simple algorithm for the stiffness matrix of triangular plate bending elementsThe authors are indebted to the referees for many comments and suggestions. (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 553-563 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: For a hierarchy of polynomials on the triangle there is derived an algorithm for computing the stiffness matrix of the plate bending element. The algorithm is easy to program and means a considerable saving of the computing time. The same approach can be used for any elliptic equation with constant coefficients.
    Additional Material: 1 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030409
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    Improved numerical integration of thick shell finite elements (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 575-586 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A quadratic thick shell element derived from a three-dimensional isoparametric element was first introduced by Ahmad and co-workers in 1968. This element was noted, however, to be relatively inefficient in representing bending deformations in thin shell or thin plate applications. The present paper outlines a selective integration scheme for evaluating the stiffness matrix of the element, in which each component of the strain energy is evaluated separately using a different Gaussian integration grid for each contribution. By this procedure, the excessive bending stiffness of the element, which results from the use of me quadratic interpolation functions, is avoided.The improved performance of this element, as compared with the original thick shell element, is demonstrated by analyses of a variety of thin and thick shell problems. Editors' note: A similar development was outlined by O. C. Zienkiewicz and co-workers in lnt. J. num. Meth. Engng, 3, 275-290 (1971). Some important details differ between the two papers which are thus complementary.
    Additional Material: 14 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030411
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    An introduction to applied probability and random processes, J. B. Thomas, Wiley, New York, 1971. No. of pages: 350. Price: £6·15 (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 591-592 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030415
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    Masthead (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971) 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030101
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  • 46
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    Erratum (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 1-2 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030102
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  • 47
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    Editorial (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 3-3 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030103
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  • 48
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    The finite difference and localized Ritz methods (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 155-160 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The conventional central finite difference equations for the plane stress extension of flat plates are derived as a localized Ritz process. A dual differential-variational discretization of this type enables common classification of the finite difference and finite element methods. Also, it provides alternative methods of establishing sufficiency conditions and relative rates of convergence for discrete systems derived from a localized Ritz process, and the existence of solution bounds for discrete systems derived using difference procedures.
    Additional Material: 7 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030203
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    Finite element formulation of general electrothermoelasticity problems (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 161-179 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: This paper is concerned with the development of consistent discrete models, via the concept of finite elements, of linear and non-linear electrothermomechanical behaviour of continuous bodies. In the development, general energy balances are utilized to derive equations governing electromagnetic fields over an element and coupled equations of motion and heat conduction of a typical element of the continuum. These equations make it possible to study a general class of field problems involving arbitrary geometries and boundary conditions. Sample problems are included.
    Additional Material: 9 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030204
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  • 50
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    Axial wave propagation in membrane shells of revolution (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 181-198 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The dynamic finite element technique, which is referred to in the literature as ‘computer-analysis’, is applied to wave propagation problems occurring in finite and semi-infinite linearly elastic membranes of revolution. Both semi-infinite and finite versions of cylindrical and conical membranes are considered, and a finite membrane having a meridional curve which is parabolic is solved. The source of excitation is generally a constant velocity motion of one end of the membranes, but the results for a stress-pulse input at one end of a semi-infinite cylindrical membrane are also given. The results for the finite membranes are new, and the results for the semi-infinite problems are discussed with respect to previously published results. The two-dimensional state of stress in the membrane requires careful ordering of the calculations, and the boundary conditions for finite membranes are shown to follow logically from this ordering of the calculations. The difference in the solutions resulting from prescribing an axial or a tangential velocity excitation at the end of a conical membrane is presented, and the mesh size necessary for convergence to the solution is indicated. The graphs of the results clearly indicate regions in space and time where the membrane model should be replaced by the shell formulation to represent a realistic structure. The technique is shown to be self-contained and independent of any formal method such as the method of characteristics.
    Additional Material: 18 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030205
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    Dynamic programming and the solution of the biharmonic equation (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 199-213 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The numerical solution of the biharmonic equation in a rectangular domain is presented in the context of continuous dynamic programming techniques. The equations are specialized to the solution of elastic rectangular plates. A suitable approximate expression of a certain functional equation containing derivatives only in one direction is used to derive equations for the stiffness and flexibility matrices of the plate. It is shown that those matrices satisfy matrix Riccati equations subject to suitable initial conditions. It is also shown that the condition of optimality in the Hamilton-Jacobi-Bellman equation directly expresses a classical variational principle, i.e. the principle of complementary energy. Some numerical examples are finally presented.
    Additional Material: 1 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030206
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    Non-linear programming for the plastic analysis of local deformations in shell structures (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 215-232 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The paper presents an analysis of the response of plastic spherical and cylindrical shells subjected to loads applied through a rigid boss. Special emphasis is placed on following the load-deflection behaviour of these structures after the application of the yield-point load in order to predict the appearance of any snapping action.The method of analysis assumes that upper bound calculations are applicable and that the associated velocity fields can be represented by a series of piecewise continuous polynomials. The internal dissipation of energy for the structures are then written in terms of the coefficients of these polynomials and the values appropriate to the solution are found by using a non-linear programming routine.The results of this analysis are correlated with a non-dimensional boss size parameter p and compared with the results of experimental investigations. Mention is also made of the possible effects of initial imperfections.
    Additional Material: 12 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030207
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    Trigonometric function representations for rectangular plate bending elements (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 261-273 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A study of bending of plates for small deformations by applying the finite element method is presented in this paper.A new class of displacement functions has been developed for rectangular bending elements. For the first time a method is proposed for the derivation of displacement functions in which trigonometric expressions that had apparently failed to yield satisfactory results in earlier attempts can be used along with polynomial terms.The derivation leads to conforming type of displacement functions which satisfy the convergence criterion. The approach also demonstrates how many more new displacement functions can be found.
    Additional Material: 7 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030210
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  • 54
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    A steepest gradient method for optimum structural design (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 249-259 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: This paper describes a search procedure for finding the unconstrained maximum or minimum of a function of many independent variables. If this function represents the volume, cost, stiffness, etc. of a structure and each of the independent variables is associated with a parameter governing the geometry of the structure then designs of optimum geometry may be made in certain cases with the assistance of this search procedure. The procedure consists of steepest gradient calculations used in conjunction with a reverse Fibonacci location process. A ridge-following technique is included to speed convergence in addition to localized exploration in the region of an optimum.The search procedure has been programmed for computer use and an outline of its structural design applications is presented together with an example of its efficiency in a specific case.
    Additional Material: 6 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030209
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    Quadrature rules for brick based finite elements (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 293-294 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030213
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    A note on accuracy and convergence of finite element approximations (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 291-292 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030212
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    Recent advances in matrix methods of structural analysis and design, edited by R. H. Gallagher, J. T. Oden and Y. Yamada, University of Alabama Press, Alabama, 1971. No. of pages: 904. Price: $32.50 (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 446-446 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030315
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    Discussion of paperR. S. Barsoum and R. H. Gallagher, ‘Finite element analysis of torsional and torsional-flexural stability problems’, Int. J. num. Meth. Engng, 2, 335-352 (1970). by R. S. Barsoum and R. H. Gallagher (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 444-445 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030313
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    Announcements (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 447-448 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030316
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    Masthead (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971) 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030401
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    The elasto-plastic indentation of a half-space by a rigid sphere (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 451-462 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: Using the finite element method, a detailed study of the deformations and stresses produced in an elastic-perfectly plastic half-space indented by a rigid sphere was done. The analysis covers the transition region from the maximum elastic contact load to a state where this load has been increased one hundredfold. Experimental results available in the literature are in good agreement with the analysis. In solving repeatedly the large number of linear equations involved in the solution of the problem, it was found profitable, in order to save computer time, to modify the direct elimination method. This technique is described in some details in the paper.
    Additional Material: 12 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030402
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    A note on convergence of finite element solutions (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 485-493 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The convergence of nodal displacements obtained by the finite element method is investigated for special element patterns in plane elasticity with the aid of the differential equation derived from the equilibrium condition at each node. The convergence of strains is also discussed. It is shown that averaging is an effective tool for obtaining approximations to strain for some kinds of mesh arrangement. It is also shown that the approach becomes inaccurate along force boundaries.
    Additional Material: 9 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030404
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    A refined curved element for thin shells of revolution (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 495-508 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A refined axisymmetric curved finite element for the analysis of thin elastic-plastic shells of revolution is described in the paper. The improved element is obtained by employing cubic polynomials in terms of local Cartesian co-ordinates for the assumed in-plane and out-of-plane displacements. This introduces into the solution two internal degrees of freedom in the cord direction of each element. These internal degrees of freedom are removed by static condensation before assembling the individual element stiffness matrices, and are subsequently recovered after the nodal displacements are obtained. On comparison with the previous formulation, this procedure greatly improves the accuracy of the solution especially with regards to in-plane stress-resultants at discontinuities in the meridional curvature and interelement equilibrium of forces. The latter fact makes it possible to analyse shells with a discontinuous meridional slope. In using this element, improvement in the convergence of the elastic-plastic solutions has also been observed.Several examples illustrate the quality of solutions. The reported study is limited to axisymmetric loadings cum boundary conditions.
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    Numerical methods for evaluation of equilibrium composition of ideal gases (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 509-517 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: This paper considers methods of solution of the relevant equations based on the Newton-Raphson process. Expressions are derived for calculation with both good and very poor initial guesses and for calculation of pressure, volume and temperature during an equilibrium process. A method of programming the calculations is outlined. Variations and modifications to suit specific situations are discussed.
    Additional Material: 1 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030406
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    An automatic mesh generation scheme for plane and curved surfaces by ‘isoparametric’ co-ordinates (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 519-528 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A computer orientated method is presented which generates meshes of triangular elements in plane and curved surfaces. Depending on geometrical and material variations, the region to be discretized is divided into a number of four sided zones. By using curvi-linear co-ordinate systems, nodes within and on the boundary of each zone are automatically positioned and referenced to a global Cartesian co-ordinate system. Elements are automatically assembled from these nodes. Input data is required to specify the positions and material properties of each zone and how they are connected. Examples are given which illustrate the range of meshes that can be generated. Extension of the method to generate three-dimensional tetrahedral elements is indicated.
    Additional Material: 10 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030407
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    Incremental displacement in non-linear analysis (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 587-588 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030412
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    An introduction to APL, W. Prager, Allyn and Bacon, Boston, 1971. No. of pages: 134 (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 591-591 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030414
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    Letters to the editor (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 588-591 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030413
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    Vibration analysis of rotating cantilever plates (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 233-248 
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    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A finite element technique is used to determine the natural frequencies and the mode shapes of a cantilever plate mounted on the periphery of a rotating disc. The plane of the plate is assumed to make any arbitrary angle with the plane of rotation of the disc. The distributed centrifugal force is resolved into two components - one acting in the plane of the plate and the other normal to the plate. The stresses produced in the middle surface of the plate due to the in-plane forces are first determined. The increase in the bending stiffness of the plate elements due to these in-plane stresses is obtained in a manner similar to that used in the stability analysis of plates. The component of the distributed centrifugal force normal to the plate surface is added to the inertia force.From the results of computations carried out for various values of the aspect ratio, the speed of rotation, the disc radius and the setting angle, empirical formulae are derived giving the effect of these parameters on the natural frequencies. These empirical formulae are observed to be in agreement with the corresponding known formulae for rotating cantilever beams, when the aspect ratio is high.
    Additional Material: 8 Ill.
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    URL: http://dx.doi.org/10.1002/nme.1620030208
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    Numerical control, olesten, Wiley-Interscience, New York, 1970. No. of pages: 645. Price: £9.50 (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 445-446 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030314
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    The numerical solution of non-linear consolidation problems (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 5-11 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: It has long been recognized that permeability, compressibility and viscosity vary during the consolidation of soil. However, the introduction of these variations into consolidation theory leads to formidable difficulties due to their rendering the equations highly non-linear. Numerical methods are given herein which enable the governing equation to be solved for a variety of different non-linear laws.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030104
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  • 72
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    Application of the simultaneous iteration method to undamped vibration problems (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 13-24 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The simultaneous iteration method of obtaining eigenvalues and eigenvectors is employed for the solution of undamped vibration problems. This method is of significance when a few of the dominant eigenvalues and eigenvectors are required from a large matrix, and hence is particularly suitable for vibration problems involving a large number of degrees of freedom. It is shown that advantage may be taken of both the symmetry and the band form of the mass and stiffness matrices, thus making it feasible to process on a computer larger order vibration problems than can be processed using transformation methods. A method of allowing for body freedom is given and some numerical tests are discussed.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030105
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  • 73
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    An economical method for determining the smallest eigenvalues of large linear systems (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 25-33 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The general eigenvalue problem Ax = λBx as arising from vibration problems tackled by the finite element method is often solved by the economization method in which the two matrices are reduced to a more manageable size and approximate answers are obtained.This paper analyses the method in a more mathematical way than previous accounts and leads to a definition of the optimum set of variables to be retained during the reduction. An extension to the method is suggested which allows the approximate eigenvalue to be improved and bounds are obtained on the eigenvalues of the full problem before reduction.An estimate is made of the calculation involved in the method and it is concluded, by reference to examples, that the extended method leads to a more efficient algorithm.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030106
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  • 74
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    Solution of the compressible flow equations (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 35-43 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A technique is described for solving the compressible flow equations in subsonic flow. The general quasi-linear equation ∇.g∇v = 0 is considered with g a function of ∇v. ∇v, and iterations of the form ∇.gn∇vn+1 = 0 are analysed, where g0 is suitably chosen and gn defined from vn for n≥1. This approach is applied to the compressible flow equations in terms of a velocity potential ø: monotonic convergence is predicted and at each iteration the error is multiplied by a factor less than the square of the greatest Mach number in the solution.Reliable convergence has been obtained in practice solving the linear equation for øn+1 by a finite difference method. The alternative of working in terms of the stream function ψ is discussed, and also discretization by the finite element method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030107
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  • 75
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    The piecewise-linear analysis of two connecting structures including the effect of clearance at the connections (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 45-51 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A method of analysis is presented for two structures which have connections with clearance. It is assumed that the behaviour of the structures is described, by the movement of discrete nodes and that as the load on the structure changes, clearances open or close between corresponding nodes on the structures; each time this occurs the stiffness of the combined structure changes because its configuration has changed. Between these changes, the structure will behave linearly and the overall behaviour can be described as piecewise linear. Applications include diesel engine crankshafts with bearing clearances and the wrap-around problem in pin-and-eye connections.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030108
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  • 76
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    Non-axial-symmetric thermal stresses in circular discs or cylinders (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 53-61 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A solution is presented for the computation of the transient thermoelastic stresses in a hollow cylinder with temperature boundary conditions given as a circumferential variation of surface heat transfer coefficient. The temperature distribution is solved explicitly. The problem is set up using the Airy stress function which leads to the biharmonic equation. This approach requires the satisfaction of three Michell integrals at the inner boundary in order to ensure single-valued displacements and rotation. An iterative method is described in which these integrals are all simultaneously satisfied and thus provide the necessary non-zero boundary conditions for the solution of the biharmonic equation which is rapidly solved by Gaussian elimination. Results are presented for the general case where the temperature is a function of r and θ. The computer program is checked by assuming a constant value of the surface heat transfer coefficients. In this case a closed form solution is obtained.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030109
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  • 77
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    Note on dynamic relaxation (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 145-147 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The Dynamic Relaxation (DR) method of solving a set of simultaneous linear equations requires an estimate of the spectral radius of the matrix. Dividing each equation by the corresponding row sum of moduli of the elements of the matrix gives a convenient upper bound of unity to this. This note shows that the DR method then gives a faster asymptotic rate of the convergence than the degenerate Chebyshev method which it closely resembles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030115
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  • 78
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    Masthead (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971) 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030201
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  • 79
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    Process analysis by statistical methods, D. M. Himmelblau, Wiley, New York, 1968. No. of pages: 460. Price: £8·75; $19.95 (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 151-151 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030117
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  • 80
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    An equation solver of very large capacity (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 379-388 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A very simple equation solver of very large capacity is developed. The method described here does not require a very large in-core memory; however, a fast random access device like a magnetic disk drive is required.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030307
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  • 81
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    A numerical solution of axisymmetric problems in elastodynamicsThis research was supported by the Research Foundation of the State University of New York. (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 361-377 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The equations governing the axisymmetric dynamic deformation of an elastic solid are considered as a symmetric hyperbolic system of linear first-order partial differential equations. The characteristic properties of the system are determined and a numerical method for obtaining the solution of mixed initial and boundary value problems in elastodynamics is presented. Two examples are considered.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030306
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  • 82
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    The solution of structural equilibrium equations by the conjugate gradient method with particular reference to plane stress analysis (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 349-360 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: A computer program is described for the analysis of plates in extension using the equivalent plane-framework idealization. The conjugate gradient method is adopted to solve the resulting large number of simultaneous equations. Performance figures are quoted for the program when used on an ICL KDF9 machine with a restriction of 18K on the available core store. The method is generally shown to provide a satisfactory solution to a heavy computational task and thus permits the solution of very large structural systems on a small computer.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030305
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  • 83
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    A powerful hybrid method in finite element analysis (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 389-403 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: An important limitation of finite element analysis, namely, the need for a large number of small elements in regions of finite or infinite stress concentrations and the difficulties of convergence in such cases, is well known. Rao1 suggested a possibility of overcoming this by developing hybrid techniques combining continuum and finite element concepts. In such techniques, each region of stress concentration is covered by one large ‘primary element’ whose description includes term(s) identifying the type and order of concentration, while the remaining structure is split into a few ‘secondary elements’ which are conventional finite elements. In this paper a procedure incorporating this concept is developed and its effectiveness is clearly demonstrated by successful application to two important examples, one of them with stress singularities. The concept, in fact, can be applied equally well to other two- and three-dimensional problems of continua with discontinuities and concentrations.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030308
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  • 84
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    Linear programming methods of displacement analysis in elastic-plastic frames (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 415-423 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The analysis is aimed at determination of displacements in elastic-perfectly plastic frames, in the case of monotonically increasing loads. Spread of partial plasticity from hinges and change of geometry on the conditions of equilibrium are not included. Extremum energy principles and linear programming methods are employed to solve the problem. Both the kinematic and the static formulations of the problem are presented. The mathematical models of the formulations constitute a dual pair of linear programming problems.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030310
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  • 85
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    Use of optimization methods to solve heat convection problems with unknown wall boundary conditions (1971)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 3 (1971), S. 405-413 
    Details
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: In convection heat transfer problems, it is convenient to solve the governing differential equations by using straightforward marching techniques for numerical integration. However, the boundary layer equations in these heat transfer problems are not of the initial value type even though they are parabolic equations. Consequently marching techniques are not successful until correct initial values are known. A means of determining these initial values is presented herein. Selected optimization methods are utilized in conjunction with marching integration techniques to solve third- and fourth-order ordinary differential equations which have three unknown initial boundary conditions. Two optimization methods, one deterministic and the other non-deterministic in nature, are used both independently and in combination as determined by the particular circumstances. Two applications are used to demonstrate the technique and comparison is made with existing solutions.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nme.1620030309
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  • 86
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    Phosphiran-Komplexe (1971)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 83 (1971), S. 111-111 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19710830305
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  • 87
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    Chromtrichlorid-tris(aluminiumtrichlorid) (1971)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 83 (1971), S. 112-113 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19710830308
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  • 88
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    Synthese eines AzacyclolsDiese Arbeit wurde von der Deutschen Forschungsgemeinschaft und dem Fonds der Chemischen Industrie unterstützt. Wir danken der Farbwerke Hoechst AG für die Gewährung des Karl-Winnacker-Stipendiums an M. R. (1971)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 83 (1971), S. 113-114 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19710830309
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  • 89
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    Synthese von 2,5-Piperazindionen mit schwefelhaltigen Brücken zwischen C-3 und C-6Syntheseversuche in der Reihe der 3,6-Epidithio-2,5-piperazindion-Antibiotika Gliotoxin, Aranotin, Sporidesmin und Chaetocin, 1. Mitteilung. - Diese Arbeit wurde von der Hochschuljubiläumsstiftung Wien unterstützt. (1971)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 83 (1971), S. 114-115 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19710830310
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  • 90
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    Physikalische Chemie. Teil I: Einführung in die Gastheorie, Quantentheorie, Thermodynamik. Von G. M. Barrow. Friedr. Vieweg u. Sohn, Braunschweig 1969, 1. Aufl., 257 S., 67 Abb., 35 Tab., Paperback DM 19,80 (1971)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 83 (1971), S. 119-119 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19710830315
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  • 91
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    1,3,4,2,5-Triazadiborolidin-Derivate (1971)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 83 (1971), S. 112-112 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19710830307
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  • 92
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    Rundschau (1971)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 83 (1971), S. 118-118 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19710830314
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  • 93
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    Methods in Free-Radical Chemistry. Herausgeg. von E. S. Huyser. Marcel Dekker Inc., New York 1969. 1. Aufl., Vol. 1: 208 S., zahlr. Abb., geb. $ 11,75. Vol. 2: XI, 242 S., zahlr. Abb., geb. $ 12,75 (1971)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 83 (1971), S. 119-120 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19710830316
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  • 94
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    Impressum (1971)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 83 (1971) 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19710830401
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  • 95
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    Argumente zur Orbital-Reihenfolge in Borazin (1971)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 83 (1971), S. 169-170 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19710830504
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  • 96
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    Cycloadditionen von Keteniminen an InamineDiese Arbeit wurde vom Fonds de la Recherche Fondamentale Collective unterstützt. (1971)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 83 (1971), S. 171-172 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19710830506
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  • 97
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    1,4-Bis(trimethylsilyl)-1,4-dihydropyrazin durch reduktive Silylierung von Pyrazin (1971)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 83 (1971), S. 145-145 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19710830408
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  • 98
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    Komplexbindung einer Vinylcyclopropan-Gruppe des Bullvalens über eine π-Allyl- und eine σ-Komponente an ein Übergangsmetall (1971)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 83 (1971), S. 175-176 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19710830511
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  • 99
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    Retentive nucleophile Substitutionen an (R)-α-Ferrocenyläthyl-acetat (1971)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 83 (1971), S. 178-179 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19710830515
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  • 100
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    Rundschau (1971)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 83 (1971), S. 181-181 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19710830518
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