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  • 1
    Electronic Resource
    Electronic Resource
    Absorption of oxygen in highly viscous newtonian and non-Newtonian fermentation model media in bubble column bioreactors (1978)
    Springer
    Applied microbiology and biotechnology 6 (1978), S. 115-126 
    Details
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary Mean relative gas holdup, slip velocity, bubble size distribution, mean specific interfacial area, and volumetric mass transfer coefficient of oxygen were estimated in sparged columns 14 cm in diameter and 380 and/or 390 cm high with two different aerator types (porous plate and injector nozzle) in highly viscous Newtonian (glycerol solutions) and non-Newtonian (CMC solutions) fluids. For the Newtonian liquids the above properties were estimated as function of the viscosity of the liquid. For the non-Newtonian liquids they were determined as function of the fluid consistency index and flow behavior index. Significant differences between Newtonian and non-Newtonian systems appear. In Newtonian medium kL a drops with increasing viscosity and already approaches a constant value at η=40 cP. In pseudoplastic medium kL a varies with the fluid consistency and flow behavior indexes in the entire investigated range. In both of these systems the primary bubble population changes into two or three populations along the reactor: the medium bubbles gradually disappear and small and large bubbles are formed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00504423
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  • 2
    Electronic Resource
    Electronic Resource
    Begasung hochviskoser Kulturmedien in Blasensäulen-BioreaktorenVortrag auf dem Jahrestreffen der Verfahrens-Ingenieure, 28. bis 30. September 1977 in Stuttgart. (1978)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 50 (1978), S. 227-227 
    Details
    ISSN: 0009-286X
    Keywords: Blasensäule ; Viskosität ; Fermentation ; Sauerstoff-Eintrag ; Gasanteil ; Stoffübergang ; Blasengröße ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330500316
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  • 3
    Electronic Resource
    Electronic Resource
    Synthesis of mono-dispersed spherical silica particles containing covalently bonded chromophores (2005)
    Oxford, UK : Blackwell Science Ltd
    International journal of cosmetic science 27 (2005), S. 0 
    Details
    ISSN: 1468-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Organic–inorganic ultraviolet (UV) active hybrid materials have been prepared by a sol-gel process from benzophenone derivatives and tetraethylorthosilicate. The silica particles are spherical in shape and have a narrow size distribution which remains unchanged up to organic chromophore concentrations of 0.2 mmol g−1. At higher concentrations the spheres become less regular and fuse. A dependence of the material absorption properties on the particle size (at the same organic chromophore concentration) and on the concentration of surface grafted chromophores was noted. The most effective UV filter materials were found in a combination of silica incorporated chromophores and surface grafted chromophores at an overall low chromophore concentration. A comparison of the photostability of chromophores at standardized UV irradiation revealed an increase in stability for silica incorporated and surface immobilized benzophenone compared to benzophenone in a homogeneous solution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-2494.2005.00269.x
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  • 4
    Electronic Resource
    Electronic Resource
    The structure of adsorbed gas monolayers (1976)
    s.l. : American Chemical Society
    Accounts of chemical research 9 (1976), S. 333-338 
    Details
    ISSN: 1520-4898
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ar50105a004
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  • 5
    Electronic Resource
    Electronic Resource
    A Rawlsian Approach to International Cooperation (2005)
    Oxford, UK : Blackwell Publishing Ltd
    Kyklos 58 (2005), S. 0 
    Details
    ISSN: 1467-6435
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Sociology , Economics
    Notes: Both the economic theory of federalism and international environmental economics are interested in finding conditions under which countries or groups of countries would like to start cooperation with other countries. In the framework of the standard public-good model this paper presents a criterion for individually rational and thus voluntary international cooperation aiming at the provision of an international public good. This basic criterion can be traced back to Wicksell and Rawls and reflects the idea of reciprocity. In a further step, it is used to specify determinants that affect the decision of a group of countries to enter a coalition. It turns out that in this context the adjustment behavior of the original coalition members as well as that of the remaining outsiders is of particular importance. Finally the theoretical considerations are confronted with actual behavior of countries and groups of countries (as the EU, US and the developing countries) in the Kyoto process leading to a discussion of further prospects for global climate-change policy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.0023-5962.2005.00276.x
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  • 6
    Electronic Resource
    Electronic Resource
    DIFFERENCES IN BELIEFS ABOUT WORK BETWEEN MANAGERS AND BLUE-COLLAR WORKERS (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of management studies 16 (1979), S. 0 
    Details
    ISSN: 1467-6486
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Notes: The beliefs about work of managers and blue-collar workers in the U.S.A. and Scotland were determined through a questionnaire. Both managers and blue-collar workers strongly endorsed humanistic beliefs and were indifferent to the work ethic. Blue-collar workers endorsed more strongly than managers beliefs about worker exploitation and the value of participation. In Scotland, there was a wide difference in the perceived value of leisure between managers and workers. It appears that the Scottish respondents hold fewer independent beliefs than their U. S. counterparts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-6486.1979.tb00385.x
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  • 7
    Electronic Resource
    Electronic Resource
    MANAGERIAL BELIEFS ABOUT WORK IN SCOTLAND AND THE U.S.A. (1977)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of management studies 14 (1977), S. 0 
    Details
    ISSN: 1467-6486
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Economics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-6486.1977.tb00618.x
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  • 8
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    The Work Ethic Reconsidered (1978)
    Ithaca, N.Y. : Periodicals Archive Online (PAO)
    Industrial and Labor Relations Review. 31:4 (1978:July) 450 
    Details
    ISSN: 0019-7939
    Topics: Economics
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:3121-1978-031-04-000002
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  • 9
    Electronic Resource
    Electronic Resource
    THE BELIEF STRUCTURE OF MANAGERS RELATIVE TO WORK CONCEPTS MEASURED BY A FACTOR ANALYTIC MODEL (1977)
    Oxford, UK : Blackwell Publishing Ltd
    Personnel psychology 30 (1977), S. 0 
    Details
    ISSN: 1744-6570
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Psychology
    Notes: Studies in the early seventies suggested that the traditional work ethic position was changing and that the American worker was expressing new needs for interesting and challenging work. Current management practices in many companies are attempting to meet these new needs of workers for interesting jobs through a movement called human resource development. This suggests the need for research into the beliefs that inform this movement. The following study based on a sample of 366 managers shows that they have an orientation to work based on humanistic beliefs rather than the traditional work ethic position. Thus the new management style exemplified in the HRD movement may not simply be a push for increased performance, but may also be supported by a set of beliefs regarding the nature of work that is consistent with this style. This new orientation, however, does not include any positive beliefs relative to worker participation in decision-making. The latter is rejected very strongly by all the managers surveyed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1744-6570.1977.tb02328.x
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  • 10
    Electronic Resource
    Electronic Resource
    Computational simulation and experimental findings of three-dimensional fatigue crack growth in a single-edge notched specimen under torsion loading (2005)
    PO Box 1354, 9600 Garsington Road, Oxford OX4 2XG, UK. : Blackwell Science Ltd
    Fatigue & fracture of engineering materials & structures 28 (2005), S. 0 
    Details
    ISSN: 1460-2695
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: In this paper, the rather complex three-dimensional (3D) fatigue crack growth behaviour in a single-edge notched (SEN) specimen with an inclined plane of the initial crack under torsion loading is investigated with the aid of ADAPCRACK3D programme and by application of a recently developed 3D fracture criterion. It will be shown that the computationally simulated results for fatigue crack growth in the FE model of the specimen are in good agreement with experimental findings for the development of spatially twisted and warped crack faces in the real laboratory test specimen. Consequently, also for this case with a rather complex 3D crack growth behaviour, the functionality of the ADAPCRACK3D programme and the validity of the proposed 3D fracture criterion can be stated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1460-2695.2005.00864.x
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