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  • Chemistry  (7)
  • 42.80  (4)
  • Atomic, Molecular and Optical Physics  (3)
  • equine leukoencephalomalacia  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Differential amplitude contrast imaging in the scanning optical microscope (1983)
    Springer
    Applied physics 32 (1983), S. 187-191 
    Details
    ISSN: 1432-0649
    Keywords: 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A split detector is used in a scanning optical microscope to produce high-quality differential amplitude contrast images. A slight lateral offset in the detector position is shown to introduce information about object height variations to the image. These results are compared with images obtained by electrical differentiation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00688286
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  • 2
    Electronic Resource
    Electronic Resource
    Higher diffracted orders in a BSO crystal: An experimental study of transients (1989)
    Springer
    Applied physics 49 (1989), S. 431-433 
    Details
    ISSN: 1432-0649
    Keywords: 42.40 ; 42.65 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The emergence of higher diffracted orders when a slightly wedged BSO crystal is illuminated by a single coherent beam is studied with input power and applied voltage as parameters. It is shown that the power spreads gradually towards the higher orders and that the temporal variation of the power in each beam is qualitatively the same as in the case of two-wave interaction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00325345
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Three-dimensional surface measurement using the confocal scanning microscope (1982)
    Springer
    Applied physics 27 (1982), S. 211-213 
    Details
    ISSN: 1432-0649
    Keywords: 06 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The use of the depth discriminination property of the confocal scanning microscope for surface profiling has been adapted to provide a method of high-resolution three-dimensional surface profilometry. Measurements on a semiconductor specimen demonstrate the technique; depth variations of the order of 0.1 μm are clearly resolved.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00697444
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Concentrations of fumonisin B1 in feeds associated with animal health problems (1991)
    Springer
    Mycopathologia 114 (1991), S. 129-135 
    Details
    ISSN: 1573-0832
    Keywords: Fumonisin B1 fumonisin B2 ; equine leukoencephalomalacia ; swine pulmonary edema ; animal feeds
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Ninety-eight samples of feeds associated with 44 cases of equine leukoencephalomalacia (ELEM) and 83 samples of feed associated with 42 cases of a porcine pulmonary edema syndrome (PPE) were analyzed for fumonisin B1 (FB1). For comparison purposes, 51 feed samples not associated with PPE or ELEM were also analyzed. Feed associated with ELEM contained FB1 ranging from less than 1 μg/g to 126 μg/g with 75% of the cases having at least 1 sample above 10 μg/g. Feeds associated with PPE ranged from less than 1 μg/g to 330 μg/g with 71% of the cases having at least 1 sample greater than 10 μg/g. Quantitation was by high performance liquid chromatography (HPLC)/fluorescence using the fluorescamine derivative with confirmation by thin layer chromatography (TLC) and/or gas chromatography/mass spectroscopy (GC/MS).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00437200
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  • 5
    Electronic Resource
    Electronic Resource
    Imaging properties and applications of scanning optical microscopes (1980)
    Springer
    Applied physics 22 (1980), S. 119-128 
    Details
    ISSN: 1432-0630
    Keywords: 42.30 ; 42.80 ; 72.40
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract This review paper is concerned with the imaging properties and major uses of scanning optical microscopes. It is shown that the confocal scanning microscope exhibits a form of super-resolution and that the instrument in general has great application in nonlinear microscopy and the inspection of electronic devices.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00885994
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  • 6
    Electronic Resource
    Electronic Resource
    Experimental reproduction of ELEM (1992)
    Springer
    Mycopathologia 117 (1992), S. 115-120 
    Details
    ISSN: 1573-0832
    Keywords: Fumonisins ; equine leukoencephalomalacia ; mycotoxins
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract An experiment to gain insight into the minimum toxic dose of fumonisins was conducted by feeding ponies rations with known fumonisin concentrations. Naturally contaminated corn screenings (CS) were blended with pellets, corn, and molasses to formulate individual daily diets. One group of 4 ponies was fed a ration with fumonisin B1 (FB1) varying from 〈1 ppm to 22 ppm. A second group of 5 ponies was fed a ration at varying rates containing 8 ppm FB1 for 180 days. A panel of clinical chemistry parameters was evaluated twice weekly for both groups. One pony in the first group died of equine leukoencephalomalacia (ELEM) after 225 days of which the final 55 days' diet contained 22 ppm FB1. Approximately 9 days prior to death, this animal experienced elevated liver chemistry values. All 5 ponies in the second group experienced mild, transient, clincal signs; were euthanized at 180 days; and had mild, histopathological brain lesions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00497287
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Ab initio factorized LCAO calculation of the electronic structure of α-SiO2 (1992)
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 44 (1992), S. 703-716 
    Details
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: We report on the results of calculations of the electronic structure of α-quartz that were made using the first principles, factorized linear combination of atomic orbitals method. Results were obtained for the primitive 9-atom, and orthorhombic 18- and 72-atom unit cells. Application of this method to the calculation of the electronic structure of the neutral oxygen vacancy in α-quartz is discussed and results obtained using a 72-atom unit cell are given. © 1992 John Wiley & Sons, Inc.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/qua.560440862
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Effect of ionizing radiation on the dynamic mechanical properties of an epoxy and a graphite fiber/epoxy composite (1988)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 26 (1988), S. 2029-2042 
    Details
    ISSN: 0887-6266
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: TGDDM/DDS epoxy and T300/NARMCO 5208 composite specimens were exposed to 0.5 MeV electrons to dose levels up to 10,000 Mrad, and the effects of radiation on the mechanical properties were characterized using dynamic mechanical analysis (DMA). In nominally cured specimens there remain unreacted epoxide groups because the epoxy system vitrifies during the cure, preventing additional reaction. DMA shows that ionizing radiation continues the reactions of epoxide groups. Also, the ultimate glass transition is shown to decrease monotonically with radiation dose. The room temperature elastic modulus of the epoxy increases slightly with radiation, but at temperatures exceeding 100°C there is a slight decrease with radiation. There is a dynamic loss phenomena associated with the composites, not seen in the epoxy, that is thought to be due to the interphase region between the fiber and the matrix.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/polb.1988.090261002
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Effect of ionizing radiation on the dynamic mechanical properties of an epoxy and a graphite fiber/epoxy composite (1989)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 27 (1989), S. 1185-1185 
    Details
    ISSN: 0887-6266
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/polb.1989.090270518
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Burst testing of condoms. I. Basic features of the force-deformation curve of latex-rubber condoms (1992)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Biomaterials 3 (1992), S. 117-122 
    Details
    ISSN: 1045-4861
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine , Technology
    Notes: Inflation of a rubber condom involves biaxial deformation of the material which can be modeled by the use of an appropriate strain-energy function. Force versus deformation data for uniaxial extension of strips of condoms were used to determine the parameters for Ogden's form of a strain-energy function. These parameters were then used to fit experimentally obtained burst test data to a stress-strain equation formulated for inflation of condoms in a burst test. Experimental data on inflation of condoms agree well with theoretical curves verifying the applicability of the biaxial stress-strain equation to the particular strain-energy function on which it is based.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jab.770030207
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