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  • 1
    Book
    Book
    New York u.a. :Wiley,
    Title: Concepts and applications of finite element analysis
    Author: Cook, Robert D.
    Edition: 2nd ed.
    Publisher: New York u.a. :Wiley,
    Year of publication: 1981
    Pages: 537 S.
    Type of Medium: Book
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 94 (1972), S. 9260-9261 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 95 (1973), S. 8088-8096 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 101 (1979), S. 1322-1323 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-5225
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Summary Naturally-occurring growth stress patterns in timber are modified by cutting. Stresses in cut timber may cause destructive cracks and splits. This research uses a three-dimensional finite element method to study how non-axisymmetric cuts affect the stress pattern. The results show that some oblique cuts reduce high stresses near the pith. Experimental work supports the calculations.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1573-7381
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Central nerve fibres of Pacinian corpuscles of the cat were examined by semiserial sections 2, 3, 4, 5, 6 and 9 days after sciatic nerve cut. Axons of the Pacinian corpuscles showed degenerative changes 4 days after transsection and the removal of axonal and myelin debris was almost completed within 9 days. Axonal degeneration was characterized by disintegration of filaments and tubules, disruption of axolemma, swelling of mitochondria and loss of filopod processes in the terminal axon. Selective preservation of filaments in local areas of terminal axons was found in some corpuscles. The myelinated portions of the nerve fibre were removed by Schwann cells and the unmyelinated terminal portions by inner core lamellar cells. Mitochondria and other degenerated axoplasmic organelles of the terminal axon formed dense bodies following their engulfment by lamellar cells. The unmyelinated portion of the axon was removed faster than the myelinated. The rate of removal of axonal debris varied along the length of both the unmyelinated and myelinated portions of the nerve fibre. Similarity in the behaviour and morphology of reactive lamellar and Schwann cells points to the possibility of the common derivation of these cells.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neurocytology 5 (1976), S. 195-206 
    ISSN: 1573-7381
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The ultrastructural features of non-neuronal cells associated with Auerbach's plexus in the stomach, ileum and colon of the guinea-pig have been examined. Apart from Schwann, mast and interstitial or fibroblast-like cells, two other cell types are described that do not appear to have been reported previously. Of these two cell types, one was found external, but close to, the plexus and contained large granular vesicles. The other cell type contained numerous glycogen-like granules, was situated close to or within axon bundles and had processes that extended within and peripheral to nerve bundles as well as being close to smooth muscle cells. Although axon varicosities were opposed to both the processes and cell body of the second type of cell, synaptic-like contacts were not observed.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neurocytology 5 (1976), S. 171-194 
    ISSN: 1573-7381
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The ultrastructural features of nerve cell bodies and axon profiles within Auerbach's plexus in the stomach, ileum, caecum and colon of the guinea-pig have been examined. Nerve cell bodies have been tentatively classified into nine different types according to their size, distribution of organelles, location and relationship to satellite cells. Except for cell size, no attempt has been made to correlate ultrastructural with light microscopical observations. On the basis of vesicular size, shape and content, eight morphologically distinct types of axon profile have been identified as well as two profile types which are thought to reflect different physiological conditions. The axons contained various populations of small, mostly granular vesicles; small, round agranular vesicles; small, flattened vesicles; large flattened or elongated vesicles; and three types of large vesicle with granular contents distinguished by size. Some correlation between types of axon profile and two types of nerve cell body was recognized. However, more than one type of axon profile usually formed synapses with one type of cell body, and a precise correlation was not determined.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neurocytology 3 (1974), S. 737-751 
    ISSN: 1573-7381
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The occurrence of glial cells surrounded by myelin sheaths was investigated in cat and monkey optic nerves undergoing Wallerian degeneration. Occasionally, collapsed myelin sheaths were closely apposed to oligodendroglia. More often, small glial cells and their processes were completely surrounded by a myelin sheath. On the basis of ultrastructural appearance the cells were identified as being of three different types. One type had ‘light’ cytoplasmic processes and was comparable to astroglia. The cytoplasm of another type, with a dark granular cytoplasm and sparse rough endoplasmic reticulum, had characteristics of cells previously considered to be microglia, multipotential glia, ‘M’ cells or dark oligodendroglia. The third cell type contained numerous rosettes of ribosomes and an extensive rough endoplasmic reticulum, somewhat similar to cells previously described as medium oligodendroglia. The second and third cell types were considered to be oligodendroglia and the existence of a third glial element is questioned. Except in the later stages of degeneration (56 days and longer) the periodicity of the myelin remained normal. Evidence is presented to show that glial cells or their processes enter the myelin sheath at the node of Ranvier. It is suggested that the invading oligodendroglia are part of a population of ‘dormant’ cells.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 9 (1975), S. 39-50 
    ISSN: 0029-5981
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: Finite element buckling analyses of plates are performed by means of quardrilateral elements having 12 degrees-of-freedom. It is found that if the plate is capable of appreciable transverse shear deformation, initial-stress stiffness matrices that represent the lateral dispalcement by cubic polynomials do not yield convergence to correct results. An initial-stress stiffness that works satisfactorily for both homogeneous and sandwich plates is formulated. A Fortran listing of the associated subroutine is provided.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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