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  • Chemistry  (6)
  • Polymer and Materials Science  (2)
  • Blood pressure
  • Coarctatio aortae
  • General Chemistry
  • Human
  • Lagerung
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  • Organic Chemistry
  • sarcoplasmic reticulum
  • Wiley-Blackwell  (6)
  • Springer
  • 1995-1999
  • 1985-1989  (4)
  • 1980-1984  (2)
  • 1965-1969
  • 1987  (4)
  • 1982  (2)
Document type
Keywords
Publisher
  • Wiley-Blackwell  (6)
  • Springer
Years
  • 1995-1999
  • 1985-1989  (4)
  • 1980-1984  (2)
  • 1965-1969
Year
  • 1
    Electronic Resource
    Electronic Resource
    2-Pyridylhydrazone als Carbonylderivate zur Steuerung der Fragmentierung in der MassenspektrometrieHerrn Prof. Dr. Walter Boguth zum 65.Geburtstag gewidmet (1982)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 65 (1982), S. 1038-1044 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 2-Pyridylhydrazones as Carbonyl Derivatives to induce Fragmentation in Mass SpectrometryIt was found that the 2-pyridylhydrazone is a derivative of the carbonyl group, which is able to induce fragmentation of an alicyclic skeleton with an efficiency comparable to that of the tertiary amino group and the ethylene acetal group.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19820650336
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Chemical comminution of coal (1987)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 33 (1987), S. 319-321 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690330221
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Pressure pulsations in the piping of reciprocating pumps (1987)
    Weinheim : Wiley-Blackwell
    Chemical Engineering & Technology - CET 10 (1987), S. 262-271 
    Details
    ISSN: 0930-7516
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Pressure pulsations in hydraulic systems, generated by reciprocating pumps, can cause serious problems with regard to plant safety and reliability. In particular, fatigue problems arise in high-pressure piping systems. The available knowledge is not sufficient for an accurate computation of pressure peaks in the piping of reciprocating pumps. A number of calculation models are available which, however, neglect both fluid compressibility and friction. This contribution presents a calculation method which allows a precise modelling of various pump installations. Comparison of calculated and experimental data shows a good agreement and provides a validation of the computational model.
    Additional Material: 18 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ceat.270100132
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Influence of materials and structure on performance of a football helmet (1987)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 27 (1987), S. 1113-1120 
    Details
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: A nonlinear finite element model for the static analysis of football helmets is developed as a first step in a methodology for the mathematical modeling of helmets. Polycarbonate and acrylonitrile-butadiene-styrene are considered as the shell material for the helmet. Such a methodology can be used to predict helmet response to loading and impact and can be incorporated in a computer program studying injuries caused by helmeted head collisions in football. Numerical results in terms of force-deflection curves, maximum stresses, and work of deformation are given. The influence of the polymeric material forming the helmet shell on energy absorption is studied. The effect of the internal padding material and suspension system is also considered.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760271502
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  • 5
    Electronic Resource
    Electronic Resource
    Verschleiß selbsttätiger Pumpenventile durch abrasive SuspensionenErweiterte Fassung eines Vortrages von U. Störk auf der Sitzung des GVC-Fachausschusses „Hochdruckverfahrenstechnik“, 11./12. April 1986 in Erlangen. (1987)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 59 (1987), S. 383-392 
    Details
    ISSN: 0009-286X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Wear of automatic pump valves by abrasive suspensions. In pumping of abrasive suspensions with reciprocating displacement pumps against high pressures, the pump valves prove to be subject to serious wear. Wear of the piston seal can usually be avoided by washing or by separating membranes. Pump valves are fitted with elastic or rigid seals. To resist corrosion and temperature effects, frequently the only possible approach is to finish them in metallic or carbide materials. The major kinds of wear are demonstrated by a tribological study. The rates of wear found for a real valve model with a high pressure experimental setup depend upon the pressure and frequency of reciprocation. A hardness-dependent region of instability exists where wear scoring arises. The volume wear rate for various arrangements of materials and abrasive particles exhibits a crest/trough nature. A design strategy and construction aspects are considered and compared with practical experience.
    Additional Material: 22 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330590505
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  • 6
    Electronic Resource
    Electronic Resource
    Elektronenmikroskopische und mikroanalytische Untersuchungen zur Veränderung der übermolekularen Struktur von mit Natriumhydroxid-Lösungen und Schwefelsäure behandelter Cellulose (1982)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 33 (1982), S. 43-48 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: The changes and the conditions of destruction of the supramolecular structure of cellulose caused by the action of NaOH and sulfuric acid of different concentration have been investigated by electron microscopy. With different kinds of cellulose the destruction of the microfibrillar structure was observed to occur within various ranges of concentration. The crystalline structures formed by the treatment with the reagents were investigated by electron diffraction and their elemental composition was determined by x-ray microanalysis.
    Notes: Durch elektronenmikroskopische Untersuchungen werden die Veränderung der übermolekularen Struktur der Cellulose bei der Einwirkung von NaOH und Schwefelsäure unterschieflicher Konzentration verfolgt und die Bedingungen ihrer Zerstörung ermittelt. Die Zerstörung der mikrofibrillaren Struktur durch NaOH-Lösungen bzw. Schwefelsäure liegt bei den einzelnen Cellulosetypen in verschiedenen Konzentrationsbereichen. Die durch die Behandlung mit den Reagenzien gebildeten kristallinen Gebilde werden mittels Röntgenmikroanalyse auf ihre Elementzusammensetzung und mittels Elektronenbeugung auf ihre kristalline Struktur untersucht.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1982.010330109
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