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  • Articles: DFG German National Licenses  (3)
  • 1990-1994  (3)
  • Polymer and Materials Science  (2)
  • Digital luminescent radiography (DLR)  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Hand radiographs: a comparative study of digital luminescent radiography (DLR) and conventional screen-film system combinations (1994)
    Springer
    European radiology 4 (1994), S. 225-230 
    Details
    ISSN: 1432-1084
    Keywords: Digital luminescent radiography (DLR) ; X-ray intensifying screens ; Radiographic image enhancement ; Hand radiography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A total of 102 matched hand radiographs were taken by digital luminescent radiography (DLR) and conventional) screen film system combinations. In DLR two differently postprocessed images were obtained from each data set: A display with low-spatial frequency enhancement filtered to took like a conventional radiograph was placed opposite a display with high-edge enhancement. Conventional and digital images were evaluated rank only and separately by four radiologists, using a questionnaire. Using DLR proved diagnostically equivalent to the conventional technique except for a diminished visibility of subtle erosions and fissures. High-frequency enhancement did not provide additional diagnostic information and led to artifacts at the edges of metal prostheses. Densitometry confirmed an optimized density of digital radiographs. The main argument for the employment of digital techniques is the availability of data for picture archiving and communications systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00606452
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Zur Entwicklungsgeschichte des ChemieingenieurwesensVortrag auf dem Jahrestreffen der Verfahrens-Ingenieure, 27. bis 29. Sept. 1989 in Berlin. (1990)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 62 (1990), S. 183-190 
    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: Development of chemical engineering - A survey. This article describes the scientific and technological origins of chemical engineering and the concept of chemical technology. The paradigm of unit operations was the result of mass production, continuous and catalytic processes, and knowledge of physical chemistry. The evolution of theory and the institutionalization of chemical engineering are described as constitutive elements.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330620305
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Pervaporation - ein Sonderverfahren in der chemischen Industrie (1992)
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 64 (1992), S. 794-794 
    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
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cite.330640941
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    Paper (German National Licenses)
    Fulltext
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