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  • Polymer and Materials Science  (73)
  • Visual responses  (2)
  • Brain stem  (1)
  • Cat  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Neuronal activity in the dorsolateral pontine nucleus of the alert monkey modulated by visual stimuli and eye movements (1988)
    Springer
    Experimental brain research 70 (1988), S. 496-512 
    Details
    ISSN: 1432-1106
    Keywords: Dorsolateral pontine nucleus ; Visual responses ; Visual tracking neurons ; Pursuit ; Monkey
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The activity of neurons in the dorsolateral pontine nucleus (dlpn) was studied in two awake rhesus monkeys trained to participate in a variety of visual and oculomotor tests. The visual and eye movement related responses of 73 neurons encountered in the more caudal part of the dlpn were analyzed. Thirty eight of these could be assigned to one of the three following groups. Visual-only neurons (Type 1, n = 10) responded to movement of a broad range of visual stimuli in certain preferred directions. Their receptive fields were usually large, not restricted to the contralateral visual field and always included the fovea. Visual-tracking (VT) neurons (n = 28) discharged in relation to smooth pursuit of a small target in particular preferred directions. Nine of these (Type 2) did not respond to visual stimulation during stationary fixation. Nineteen VT-cells (Type 3) discharged in relation to both visual tracking and visual stimulation. In 9 of the Type 3 neurons, the preferred directions for visual stimulation and tracking were opposite, whereas they were the same in the other 10. Visual responses of Type 3 neurons were indistinguishable from those of Type 1 neurons. Testing of an additional 9 neurons driven by either visual-tracking or pattern movement was not sufficient to allow a definite assignment to one of the groups 1, 2 or 3. The distribution of preferred directions for both visual stimulation and visual tracking was widely scattered between 0 and 360 deg. Our results suggest that the dlpn is a constituent in a cerebro-cerebellar loop important for the generation of smooth pursuit eye movements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00247598
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  • 2
    Electronic Resource
    Electronic Resource
    Visual and vestibular signals in the lateral mesencephalic tegmental region of the cat (1991)
    Springer
    Experimental brain research 85 (1991), S. 641-649 
    Details
    ISSN: 1432-1106
    Keywords: Lateral mesencephalic tegmental region ; Brain stem ; Visual responses ; Vestibular responses ; Auditory responses ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Single unit recordings from two alert cats were used in an attempt to further elucidate the function of the lateral mesencephalic tegmental region (LTR), a part of the mesencephalon forming a link between the superior colliculus and the lower brain stem. A total of 155 units recorded from the LTR were tested with visual, vestibular and acoustic stimuli. Of these, 54 cells (36%) were characterized as either visually (n=33) or vestibularly (n=21) responsive and an additional 13 cells were driven by complex acoustic stimuli. Visually responsive cells typically were directionally selective with large, mainly contralateral receptive fields. Vestibularly responsive cells were modulated by stimulation of either the horizontal canals (yaw stimulation; n = 16) or of both pairs of vertical canals (pitch stimulation; n=5). About half of the cells with activity modulated by rotation about the yaw axis increased discharge during ipsiversive (Type I), the other half during contraversive rotation (Type II). Of the 5 cells with activity modulated by pitch stimulation, 4 preferred the nose-down and only 1 the nose-up direction. Although the discharge of units responsive to yaw stimulation was roughly in phase with head velocity (mean phase lag with respect to head velocity: 10.6 deg), none of the vestibular cells had activity correlated with eye position, eye velocity or movement of visual stimuli. Our observations suggest that the LTR might introduce visual and vestibular signals into the tecto-facial pathway which may be used to adjust the size of pinna movements with respect to the size of ongoing head- or body movements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00231750
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  • 3
    Electronic Resource
    Electronic Resource
    Sechsstellige Tafel der trigonometrischen Funktionen. J. Peters. 5. Auflage. Bonn, Dummler 1962. VII, 293 S. 4°. Leinen DM 38,- (1962)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 13 (1962), S. 730-730 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19620131123
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  • 4
    Electronic Resource
    Electronic Resource
    Theis-Kaltband-Handbuch; Herausgegeben aus Anlaß des 50jährigen Bestehens der Friedr. Gustav Theis, Kaltwalzwerke, Hohenlimburg. 175 S. m. zahlr. Abb., Normen u. Tab.  -  Verlag für Wirtschaftspublizistik, Wiesbaden. (Nicht im Buchhandel.) (1961)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 12 (1961), S. 68-68 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19610120116
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  • 5
    Electronic Resource
    Electronic Resource
    Schutzwert von in Alkalihydrogenfluorid-Lösungen auf Weichstahl gebildeten Deckschichten (1963)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 14 (1963), S. 637-643 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: The protective value of the top layers formed in alkali-hydrogen fluorides on soft steelBy means of solubility and elastic corrosion tests, extended over lengthy testing periods, in mineral acids of different degrees of concentration, investigations were carried out on the protective value of the top layers formed on mild steel in different alkali-hydrogen-fluoride solutions (KF, HF, (NH4)F, HF, hydrogen fluoride mixture). Both methods yielded, by and large, identical results. They showed that the mean corrosion rate of soft steel pre-treated in alkali-hydrogen-fluoride solutions amounted to no more than about 10 to 15 per cent. of that of the unprotected metal so that the top layer can be said to have a protective value of 85 to 90 per cent.
    Notes: Untersucht wurde der Schutzwert von in verschiedenen Alkalihydrogenfluorid-Lösungen (KF, HF-, (NH4)F, HF-, Hydrogenfluorid-Gemisch) auf Weichstahl gebildeten Schutzschichten im Vergleich zu dem Verhalten von ungeschütztem Weichstahl durch Löslichkeits - und Federungs-Korrosionsversuche in Mineralsäuren unterschiedlicher Konzentration über längere Versuchszeiten. Beide Methoden ergaben weitgehend das gleiche Bild. Danach beträgt die mittlere Korrosions-geschwindigkeit von in Alkalihydrogen-fluorid-Lösungen vorbehandeltem Weichstahl nur etwa 10 bis 15% von dem des ungeschützten Materials, was einem Schutzwert der Deckschicht von 85 bis 90% gleichkommt.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19630140802
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  • 6
    Electronic Resource
    Electronic Resource
    Härtetabellen von K. Hormuth. 1. Aufl., 274 S., 20 Abb., 12 Taf., 35 Tab. und Daumenregister. Format: 14,7 · 21,5 cm; flex. Kunststoff-Einband. VEB Fachbuchverlag Leipzig: 1963; Preis: DM 21, -  (1963)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 14 (1963), S. 1012-1012 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19630141123
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  • 7
    Electronic Resource
    Electronic Resource
    Korrosion 16  -  Grundlagenforschung auf verschiedenen Gebieten der Korrosion und der Werkstoffe. Bericht über die Ergebnisse der Arbeiten des 1. Forschungsprogramms „Korrosion“, herausgegeben von E. Rabald u. W. Fritsche. Verlag Chemie, Weinheim/Bergstraße. 1963 VIII, 286 Seiten mit 256 Abbildungen und 72 Tabellen. Kartoniert DM 64, -  (1963)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 14 (1963), S. 1012-1012 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19630141124
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  • 8
    Electronic Resource
    Electronic Resource
    Polyäthylen-Plastikrohre. Lieferarten, Dimensionierung, Eigenschaften, Verlegung und Verbindung (1957)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 8 (1957), S. 69-73 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Polythylene plastic pipesPipes of soft and hart polythylene (Supralen soft and supralen hard) are gaining increasing application in constructions for transport of aggressive liquids and gases because of their good properties especially owing to their resistance to corrosion. So this paper presents a general and up to date survey of the commercial types and their dimensions and of the physical (mechanical, thermal, electric, hydraulic, acoustic, optical properties) and corrosion chemical behavior as well as te installation and fitting of polythylene pipes.
    Notes: Rohre aus Weich- und Hartpolyäthylen (Supralen, weich und Supralen, hart) finden infolge ihrer guten allgemeinen und spezifischen Eigenschaften, insbesondere ihres ausgezeichneten korrosionschemischen Verhaltens, zunehmende Verwendung in Anlagen zur Förderung aggressiver Flüssigkeiten und Gase. Im Hinblick darauf gibt der vorliegende Fortschrittsbericht einen zusammenfassenden und zeitgemäßen Überblick über Lieferarten und Dimensionierung, über das physikalische (mechanische, thermische, elektrische, hydraulische, akustische und optische Eigenschaften) und korrosionschemische Verhalten sowie über die Verlegung und Verbindung von Polyäthylen-Plastikrohren.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19570080204
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  • 9
    Electronic Resource
    Electronic Resource
    Polyvinylchlorid-Plastikrohre. Lieferarten, Dimensionen, Eigenschaften, Prüfung, Bearbeitung, Verbindung und Verlegung (1957)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 8 (1957), S. 324-329 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Polyvinylchloride Plastik PipesPipes of polyvinylchloride (Supradur) are gaining increasing application in contructions for transport of aggressive liquids and gases because of their good properties especially owing to their resistance to corrosion. So this paper presents a general and up to date survey of the commercial types and their dimensions and of the physical and corrosion chemical behavior as well as the methods of installation and fitting of polyvinylchloride pipes.
    Notes: Rohre aus Polyvinylchlorid (Supradur) finden infolge ihrer guten allgemeinen und spezifischen Eigenschaften, insbesondere ihres ausgezeichneten Korrosionschemischen Verhaltens, zunehmende Verwendung in Anlagen zur Förderung aggressiver Flüssigkeiten und Gase. Im Hinblick darauf gibt der vorliegende Fortschrittsbericht einen zusammenfassenden und zeitgemäßen Überblick über Lieferarten und Dimensionierung, über das physikalische und korrosionschemische Verhalten sowie über die Verlegung und Verbindung von Polyvinylchlorid-Plastikrohren.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19570080603
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  • 10
    Electronic Resource
    Electronic Resource
    Korrosion von Weichstahl in Alkalimono- und Alkalihydrogenfluoriden. I. Einfluß der Konzentration der Lösung auf den Angriff von Weichstahl (1957)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 8 (1957), S. 133-138 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: The corrosion of soft steel in alkali mono- und alkali hydrogen fluorides I. The influence of the concentration of the solution upon the corrosion of soft steelThe influece of the concentration of alkali mono  -  and alkali hydrogen fluoride solutions upon the corrosion of soft steel has been investigated. In all solutions a corrosive attack is taking place. It depends on the concentration of the soultion. The corrosion velocity  -  concentration diagramm shows a characteristic tershold value which is followed by an approximation to a minimum. In KF- and KF·HF solutions corrosion resistant covers are formed finally while in (NH4)F HF solutions even at relatively high concentrations a corrosive attack was recorded.
    Notes: Untersucht wurde der Einfluß der Konzentration von Alkalimono- und Alkalihydrogenfluorid-Lösungen auf die Korrosion von Weichstahl. In allen Lösungen kommt es zu einem konzentrationsabhängigen Angriff. Die Korrosionsgeschwindigkeit-Konzentrationskurve weist einen charakteristischen Schwellenwert auf, nach dessen Überschreiten strebt die Korrosionsgeschwindigkeit- Konzentrationskurve einem Minimum zu. In KF- und in KF · HF-Lösungen kommt es schließlich zur Ausbildung korrosionsschützender Deckschichten, während in (NH4)F · HF-Lösungen selbst bei verhältnismäßig hohen Konzentrationen noch ein gewisser Angriff zu verzeichnen ist.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19570080304
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