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  • 1990-1994  (4)
  • 1980-1984
  • 1970-1974
  • 1992  (4)
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  • 1990-1994  (4)
  • 1980-1984
  • 1970-1974
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  • 1
    Electronic Resource
    Electronic Resource
    Optical high-sensitive field sensor using a Pockels crystal (1992)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 63 (1992), S. 5582-5585 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The sensitivity of an optical field sensor with a Pockels crystal of LiNbO3 for measuring a field distribution in a long-gap discharge has been much improved by using an intensity difference method with an intensity-modulated laser beam. The signal-to-noise ratio (S/N) is also improved by 37 dB from that without the above-mentioned method. The resultant sensitivity of the new field measuring system is 100 times higher than that of the previous one. Finally, it is possible to measure an electric field down to 7.5 V/cm in the long-gap discharge with high accuracy corresponding to the S/N ratio of 20 dB and 1.5 V/cm with the accuracy of 6.0 dB.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1143385
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Glutathione Peroxidase of Fish (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 57 (1992), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Glutathione peroxidase (GSH-Px) activity was detected in the muscle and skin tissues from several fish species. The muscle GSH-Px showed an optimum pH at 8.0 for salmon and 8.5 for carp. Stability of salmon muscle enzyme was enhanced in the presence of reduced glutathione (GSH), but considerably decreased in the presence of tert-butylhydroperoxide. When salmon fillets were stored at -50°C, the GSH-Px activity increased gradually during storage. Fish muscle GSH-Px shows potential for preventing oxidative deterioration in muscle during storage and processing.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1992.tb11276.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Thermal degradation of polyesters by simultaneous TG-DTA/FT-IR analysis (1992)
    Springer
    Journal of thermal analysis and calorimetry 38 (1992), S. 1891-1900 
    Details
    ISSN: 1572-8943
    Keywords: polymers ; TG-DTA/FT-IR
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Es wird ein kombiniertes System aus TG-DTA und FT-IR beschrieben. Mit dieser simultanen TG-DTA/FT-IR-Technik wurden spektroskopische und Massenverlustangaben über die thermische Zersetzung technisch wichtiger Polyester, namentlich von Poly(ethylenterephthalat) (PET) und Poly(Butylenterephthalat) (PBT) ermittelt. Die aus PET freigesetzten Gase waren Benzoesäure, Kohlendioxid und Kohlenmonoxid, die aus PBT freigesetzten Gase hingegen Terephthalsäureester und Benzoesäureester.
    Notes: Abstract A combination system of thermogravimetric/differential thermal analysis (TG-DTA) and Fourier-transform infrared absorption spectroscopy (FT-IR) was described. This simultaneous TG-DTA/FT-IR technique gave spectroscopic and weight loss information about the thermal degradation process of engineering polyesters; poly(ethylene terephthalate)(PET) and poly(butylene terephthalate)(PBT). The evolved gases from PET were benzoic acid, carbon dioxide and carbon monoxide, while those from PBT were terephthalic acid esters and benzoic acid esters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01974683
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Serial change of iodine-123 metaiodobenzylguanidine (MIBG) myocardial concentration in patients with dilated cardiomyopathy (1992)
    Springer
    European journal of nuclear medicine 19 (1992), S. 265-270 
    Details
    ISSN: 1619-7089
    Keywords: Dilated cardiomyopathy (DCM) ; Myocardial scintigraphy ; 123I-Metaiodobenzylguanidine (MIBG)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Serial change of the metaiodobenzylguanidine iodine-123 (123I-MIBG) myocardial concentration was investigated in patients with dilated cardiomyopathy (DCM). Eight DCM patients and 6 control subjects were examined. After the injection of thallium-201 and 123I-MIBG, planar chest images were obtained simultaneously for both tracers in every 30–60 min over 5 h. Serial changes of myocardial uptake ratio (MUR) were compared for both tracers. In DCM, the initial MUR of 123I-MIBG did not differ significantly from that of the controls. The washout of 123I-MIBG from the myocardium, however, was significantly increased in DCM. In particular, the decrease in the early phase (15–45 min) was significantly larger in DCM than in the controls (21.2%±7.5% vs. 5.3%±4.0%, P 〈0.01), showing a significant negative correlation with the left ventricular ejection fraction (r = −0.72 P 〈 0.05). For 201TI, neither the initial MUR nor the washout rate different significantly between the two. Thus, an early rapid decrease of the 123I-MIBG myocardial concentration might characterize DCM and reflect the severity of this disease.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00175140
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    Paper (German National Licenses)
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