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  • 1
    Electronic Resource
    Electronic Resource
    Electron cyclotron resonance heating by strong monochromatic wave in nonuniform magnetic field (1994)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 1 (1994), S. 834-841 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Numerical studies are made on dynamics of electrons under electron cyclotron resonance heating (ECRH) by a strong monochromatic wave in a nonuniform magnetic field. The response of the electrons is described in terms of gains in energy and magnetic moment. These expressions are employed to define a response function which connects the velocity distributions of electrons before and after heating in a wide range of conditions. The response function is applied to calculate the velocity distribution of cold electrons which stream up the magnetic slope and are heated at the resonance. This configuration simulates a possible scheme for controlling an inward flux of cold electrons in diverter regions of tori and in mirror ends by mirror reflection enhanced by ECRH. The velocity distribution shows wing-like structures which are not expected from diffusion equations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.870742
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Theoretical analysis of thermal dike supported by electron cyclotron resonance heating (1994)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Plasmas 1 (1994), S. 3986-3995 
    Details
    ISSN: 1089-7674
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Thermal dike is a new concept for controlling energy transport carried by electrons along open magnetic field lines by enhancing mirror-reflection with assistance of electron cyclotron resonance heating (ECRH). Quantitative analyses are made to evaluate merits of thermal dike and to clarify requirements for efficient use of it. Heating response function is applied for trajectory analyses of electrons streaming through the ECRH zone. Substantial power gain is obtained under a configuration with a high mirror ratio between the reflection point and the resonance point and with a large scale length of the magnetic gradient in the resonance zone. Thermal dike is shown to be beneficial both in tandem mirrors and in diverters in tori. Discussions are made also on a basic experiment program of thermal dike in the GAMMA 10 tandem mirror.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.870914
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Microwave-mode analyzer with dispersive reflector antenna (1992)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 63 (1992), S. 3167-3173 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A new method is developed for mode analysis of microwaves propagating in an oversize waveguide. A curved reflector is used to disperse the different modes in different directions. The locations of the mode powers are systematically distributed on an intercepting absorber plane. An infrared camera is used for quick visual analysis of the mode map produced as a temperature distribution on the absorber sheet. Detailed analysis is also made by numerically processing the image data. Polarizations of the constituent modes can be determined with a rotated microwave receiver. Usefulness of this method is experimentally demonstrated by comparison with other techniques.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1142570
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Relationship between strain effect and martensitic transformation in multifilamentary Nb3Sn wires (1994)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 75 (1994), S. 7404-7407 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: For bronze-processed multifilamentary pure Nb3Sn and 2.3 at. % Ti added (Nb,Ti)3Sn wires, which were prepared under the condition of the same wire parameters such as the filament size, filament number, and bronze ratio, the strain effects on the critical current density were measured. The large difference of the residual strain between Nb3Sn and (Nb,Ti)3Sn wires was obtained. It was found that the martensitic transformation for Nb3Sn compound largely contributes to the residual strain through the variation of the elastic modulus in bronze-processed multifilamentary Nb3Sn wires. It was verified that the ternary element addition of Ti surely suppresses the martensitic transformation in the bronze processed multifilamentary Nb3Sn wire.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.357033
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Conformal deposition of WSix films on micron-sized trenches: The reactivity of film precursors (1992)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 61 (1992), S. 764-765 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Tungsten silicide films (WSix) were deposited from WF6 and SiH4 by low pressure chemical vapor deposition (LPCVD) using a tubular reactor system. At the deposition temperature of 150 °C, films having low concentrations of residual fluorine (∼1.5×1021 cm−3) deposited quite conformally on micron-sized trenches. The sticking probability of the film precursor was determined from the step coverage quality, as a function of deposition temperature ranging from 120 to 390 °C. While the sticking probability remained constant above 270 °C, it changed with an activation energy of 7±2 kcal/mol in the temperature range 120–240 °C. The decreased probability of sticking improved the step coverage quality at low temperatures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.107791
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  • 6
    Electronic Resource
    Electronic Resource
    Effect of fluoride on root resorption caused by mechanical injuries of the periodontal soft tissues in rats (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Dental traumatology 10 (1994), S. 0 
    Details
    ISSN: 1600-0595
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract The present study was carried out to investigate histologically and histometrically the effect of fluoride on root resorption induced by mechanical injuries of the periodontal soft tissues in rats. Resorption lacuna in the root surface of the molar in animals given both mechanical injuries and fluoride administration was significantly smaller in length and area than that in animals given only mechanical injuries. Moreover, resorption lacuna in the former animals contained fewer odontoclasts than that in the latter. The results of the present study might suggest that the administration of fluoride suppressed root resorption induced by mechanical injuries of the periodontal soft tissues.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-9657.1994.tb00071.x
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  • 7
    Electronic Resource
    Electronic Resource
    Intracellular degradation of poly(3-hydroxybutyrate) granules of Zoogloea ramigera I-16-M (1992)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 103 (1992), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract Intracellular degradation of poly(3-hydroxybutyrate) (PHB) in bacteria is not yet clear. The properties of the autodigestion of native PHB granules from Zooglea ramigera I-16-M were examined. The release of d(−)-3-hydroxybutyrate was observed only at pH values higher than about 8.5 and at relatively high ionic strength (optimal concentration 200 mM NaCl). Triton X-100 and diisopropylfluorophosphate inhibited this reaction. Addition of the supernatant fraction of Z. ramigera did not increase the release of d(−)-3-hydroxybutyrate from the native PHB granules. On the other hand, using the protease-treated PHB granules from Alcaligenes eutrophus as a substrate, PHB depolymerase activity was detected in the supernatant fraction of Z. ramigera cells. The soluble PHB depolymerase showed similar properties to the enzyme in the PHB granules. Since PHB depolymerase activity was found in fractions containing d(−)-3-hydroxybutyrate oligomer hydrolase activity, which were separated by DEAE-Toyopearl or by Sephacryl S-100, it is possible that the intracellular PHB depolymerase is identical to the oligomer hydrolase which has been purified already.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.1992.tb05855.x
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  • 8
    Electronic Resource
    Electronic Resource
    High levels of erythrocyte aldose reductase and diabetic retinopathy in NIDDM patients (1994)
    Springer
    Diabetologia 37 (1994), S. 328-330 
    Details
    ISSN: 1432-0428
    Keywords: Key words Aldose reductase, diabetic retinopathy, erythrocyte.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Erythrocyte aldose reductase was determined in 90 NIDDM patients by a two-site ELISA using recombinant human aldose reductase. The level of aldose reductase did not correlate with age, duration of diabetes, fasting blood glucose and HbA1c of the patients. Among 38 patients with diabetes for more than 10 years, aldose reductase in those with retinopathy (including non-proliferative and proliferative) was significantly higher than in those without, while no difference in the means of the average HbA1c, maximum and minimum blood pressure levels was observed between the two groups. The results indicate that the level of aldose reductase in the erythrocyte of diabetic patients is associated with the presence of retinopathy. [Diabetologia (1994) 37: 328–330]
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00398062
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  • 9
    Electronic Resource
    Electronic Resource
    Lack of association of the insulin gene region with Type 1 (insulin-dependent) diabetes mellitus in Japanese subjects (1994)
    Springer
    Diabetologia 37 (1994), S. 210-213 
    Details
    ISSN: 1432-0428
    Keywords: Key words Insulin gene, polymorphism, Type 1 (insulin-dependent) diabetes mellitus, Japanese, susceptibility.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Although the insulin gene region is implicated in susceptibility to Type 1 (insulin-dependent) diabetes mellitus in Caucasians, significance of this region to Type 1 diabetes in Japanese remains unclear because the class 1 alleles (shorter insertion) of the variable number of tandem repeat in the 5′ region of the insulin gene are predominant in both diabetic and non-diabetic subjects. The 5′ insulin gene polymorphism was analysed in 75 Japanese patients and 69 control subjects with a precise method using PvuII and a polymorphism specific probe, which enabled us to divide class 1 alleles into four subclasses. Allelic frequencies were not significantly different between Type 1 diabetic patients and control subjects. The polymorphism in the 3′ untranslated region of the insulin gene (1127/ PstI) was also analysed and found to be tightly linked to the 5′ insulin gene polymorphism, and thus was not associated with diabetes. Interaction between HLA-DR and the insulin gene region, which was reported in the French study, was not observed in Japanese. These results suggest that the insulin gene region is not a valuable genetic risk factor for Type 1 diabetes in Japanese. [Diabetologia (1994) 37: 210–213]
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001250050095
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    High levels of erythrocyte aldose reductase and diabetic retinopathy in NIDDM patients (1994)
    Springer
    Diabetologia 37 (1994), S. 328-330 
    Details
    ISSN: 1432-0428
    Keywords: Aldose reductase ; diabetic retinopathy ; erythrocyte
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Erythrocyte aldose reductase was determined in 90 NIDDM patients by a two-site ELISA using recombinant human aldose reductase. The level of aldose reductase did not correlate with age, duration of diabetes, fasting blood glucose and HbA1cof the patients. Among 38 patients with diabetes for more than 10 years, aldose reductase in those with retinopathy (including non-proliferative and proliferative) was significantly higher than in those without, while no difference in the means of the average HbA1c, maximum and minimum blood pressure levels was observed between the two groups. The results indicate that the level of aldose reductase in the erythrocyte of diabetic patients is associated with the presence of retinopathy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00398062
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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