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  • 1
    Electronic Resource
    Electronic Resource
    Controlled production of warm electron beams (1996)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 67 (1996), S. 2157-2162 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: A warm beam is produced by passing a cold electron beam through a system of three closely spaced parallel grids. The beam and the grid structure are immersed in a magnetic field. The middle grid is biased at a large positive potential, and the resulting electric field near the grid wires scatters part of the electrons axial energy into transverse energy. Thus, although the beam remains monoenergetic, a controllable spread in both the transverse and axial energy distribution is obtained. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1147030
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  • 2
    Electronic Resource
    Electronic Resource
    Physics modeling of a substrate-backed annular fuse (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 68 (1990), S. 2454-2462 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The dynamic behavior of a novel fast fuse opening switch has been analyzed theoretically. The outer cylinder of a resistive substrate, e.g., SiC, is uniformly coated with a thin film (∼10 μm) of aluminum fuse. The substrate provides mechanical stability and guards against voltage breakdown. The key aspects of the modeling are as follows: (1) time-dependent ordinary differential equations for the fuse-intensive variables which include coupling to circuit waveforms; (2) spatial dependence within the fuse is suppressed by assuming uniform expansion (linear velocity profile). Intimate contact between the fuse and substrate layer induces an additional inductive load voltage which the fuse must support due to the skin effect inside the substrate. The resulting overvoltage is not severe enough to cause fuse restrike before switching has completed. The fuse opening times are quite short (∼20–50 ns) and the voltage multiplication factors are high (∼10–30). These results raise the hope that a single-stage fuse could ultimately be used in an inductive storage device intended for high-current, high-power pulsed diode applications.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.346506
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  • 3
    Electronic Resource
    Electronic Resource
    Experimental test of quasilinear theory (1991)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 3 (1991), S. 2747-2757 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The use of the random phase approximation in quasilinear theory has been controversial for some time. For the bump-on-tail instability this approximation leads to the neglect of mode coupling effects mediated by the resonant particles. Recently, it has been argued theoretically and numerically that resonant particle mediated mode coupling effects actually play an important role, and that the statistically averaged effect of this mode coupling is a zeroth-order increase in the growth rate. The quasilinear theory of the interaction between a warm beam and a slow wave structure is formally identical to the quasilinear theory of the interaction between a warm beam and a plasma in the weak beam limit. Strong mode coupling effects have been experimentally observed when a weak warm beam interacts with waves on a slow wave structure. When a statistical average is done over the mode coupling, however, the predicted zeroth-order increase in the growth rate is not observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.859911
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  • 4
    Electronic Resource
    Electronic Resource
    Trapped particle sideband studies (1989)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 1 (1989), S. 1958-1963 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The behavior of sidebands growing in the presence of a launched large amplitude wave in a beam–plasma system is studied numerically. The large amplitude wave traps the beam and both the upper and the lower sidebands become unstable. The behavior of the instability is found to be dependent on a phase relationship that exists between the two sidebands and the large amplitude wave. The essential features of the instability are well described by a simple model in which the trapped electrons are replaced by a single particle oscillating in each well of the large amplitude wave.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.859059
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  • 5
    Electronic Resource
    Electronic Resource
    Arbitrary waveform generator for turbulence experiments (1986)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 57 (1986), S. 2348-2350 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: We have built a computer-controlled high-speed arbitrary waveform generator which has a bandwidth of 50 MHz. High-speed arbitrary waveform generators have a wide variety of possible applications. We built our waveform generator in order to produce repetitive, synthesized "noise'' which can have any kind of statistical properties we desire. We have found this device to be quite useful in studying nonlinear mode coupling effects which occur when a weak warm beam interacts with waves on a slow wave structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1138673
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  • 6
    Electronic Resource
    Electronic Resource
    Some characteristics of erythrocyte membrane and its ATPase from lamprey, Entosphenus japonicus
    Amsterdam : Elsevier
    Comparative Biochemistry and Physiology -- Part B: Biochemistry and 55 (1976), S. 69-75 
    Details
    ISSN: 0305-0491
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0305-0491(76)90175-9
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  • 7
    Electronic Resource
    Electronic Resource
    Growth of NdP"5O"1"4 single crystals by the cold-finger technique
    Amsterdam : Elsevier
    Journal of Crystal Growth 79 (1986), S. 953-962 
    Details
    ISSN: 0022-0248
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0022-0248(86)90578-6
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  • 8
    Electronic Resource
    Electronic Resource
    Organic molecular beam deposition combined with a laser-induced chemical reaction (1998)
    Springer
    Applied physics 67 (1998), S. 277-282 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 68.55; 81.15
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003390050771
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  • 9
    Electronic Resource
    Electronic Resource
    The role of ‘Norin 10’ dwarfing genes in photosynthetic and respiratory activity of wheat leaves (1981)
    Springer
    Theoretical and applied genetics 60 (1981), S. 81-84 
    Details
    ISSN: 1432-2242
    Keywords: Wheat ; ‘Norin 10’ dwarfing genes ; Photosynthesis ; Respiration
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A comparative analysis of eight cultivars of spring wheat (Triticum aestivum) classified by height as tall (T), semi-dwarf (D1), dwarf (D2) and very dwarf (D3) was conducted to study their efficiency of oxygen exchange during photosynthesis and dark respiration. Two cultivars were included in each height group. Cultivars carrying ‘Norin 10’ dwarfing genes (D1, D2 and D3) were found to have a significantly higher photosynthetic rate per unit leaf area than talls (T) that lack these genes. Among the ‘Norin’ gene carriers, dwarf group (D2) was most efficient, followed by very dwarf (D3) and semi-dwarf (D1). Photosynthetic rate and respiratory rate were found to have a positive relationship.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00282421
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  • 10
    Electronic Resource
    Electronic Resource
    Electrical properties of MOS and MIS diodes using an electrochemically prepared poly(N-methylpyrrole) (1988)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Physics 26 (1988), S. 1697-1710 
    Details
    ISSN: 0887-6266
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Organic semiconductor devices using electrochemically prepared poly(N-methylpyrrole) (PNP) were characterized by capacitance-voltage (C-V) measurements. A device with aluminum evaporated on the PNP behaved as a MOS (metal-oxide semiconductor) diode in vacuum. Assuming the oxide layer between the metal and the PNP to be pure Al2O3, the MOS parameters were calculated. The values obtained for depletion width W = 166 Å and acceptor density NA = 1018 cm-3 in the PNP were reasonable by comparison with the previously reported values obtained by Schottky analysis. An indium/poly(p-phenylene)-1,3,4-oxadiazole (POD)/PNP diode was prepared, and C-V measurements were carried out in air. The diode behaved like an MIS (metal-insulator semiconductor) device, but the characteristics showed large variation with frequency. We have proposed a schematic model for this mechanism on the basis of the results obtained by dielectric measurements of POD and the temperature dependence of the MIS characteristics.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/polb.1988.090260810
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