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  • 1
    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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  • 2
    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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  • 3
    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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  • 4
    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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  • 5
    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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  • 6
    Electronic Resource
    Electronic Resource
    Angiotensin II further enhances type IV collagen production stimulated by platelet-derived growth factor and fibroblast growth factor-2 in cultured human mesangial cells (2000)
    Melbourne, Australia : Blackwell Science Pty
    Nephrology 5 (2000), S. 0 
    Details
    ISSN: 1440-1797
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: SUMMARY: Angiotensin II (Ang II) is considered to play a role in the development of glomerulosclerosis, which is characterized by excessive accumulation of mesangial matrix after mesangial cell proliferation. We have reported that platelet-derived growth factor (PDGF) and fibroblast growth factor-2 (FGF-2) stimulate type IV collagen production by cultured human mesangial cells (HMC). Although Ang II is well known to have a mitogenic effect in various kinds of cells, its role in the production of extracellular matrix is still undetermined. This study was designed to examine the effect of Ang II and its interaction with PDGF and FGF-2 in type IV collagen production by HMC. Cultured HMC were incubated with Ang II with or without PDGF or FGF-2 for 72 h and type IV collagen, fibronectin and laminin in the cell supernatants were measured. Ang II (10−6–10−8) itself did not change the production of type IV collagen, fibronectin, laminin and transforming growth factor-β. PDGF and FGF-2 enhanced type IV production, although they did not stimulate the production of fibronectin and laminin. Ang II further increased the stimulating effect of PDGF and FGF-2 in type IV collagen production in a dose-dependent manner. This effect of Ang II was completely blocked by Ang II type I receptor antagonist (Losartan). These data imply that Ang II is a potent stimulator of type IV collagen production by HMC in the presence of growth factors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1440-1797.2000.00017.x
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  • 7
    Electronic Resource
    Electronic Resource
    6-KETO-PROSTAGLANDIN E1 AND PROSTAGLANDIN E2 STIMULATE ALDOSTERONE PRODUCTION IN BOVINE ADRENAL GLANDS (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental pharmacology and physiology 11 (1984), S. 0 
    Details
    ISSN: 1440-1681
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: 1. In order to investigate the effect of prostaglandins on aldosterone synthesis, dispersed bovine adrenal cells were incubated with prostaglandins and the aldosterone concentration was measured by radioimmunoassay.2. The result was that aldosterone production was stimulated by 6-keto-prostaglandin E1 and prostaglandin E2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1440-1681.1984.tb00862.x
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  • 8
    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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  • 9
    Electronic Resource
    Electronic Resource
    Lung emptying patterns in diffuse obstructive pulmonary syndromes
    Amsterdam : Elsevier
    Respiration Physiology 21 (1974), S. 157-168 
    Details
    ISSN: 0034-5687
    Keywords: Dead-space volume ; Nitrogen washout Functional residual capacity ; Ventilation-to-volume ratio Lung compartments
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0034-5687(74)90091-7
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  • 10
    Electronic Resource
    Electronic Resource
    Lung volume, thickness of alveolar walls, and microscopic anisotropy of expansion
    Amsterdam : Elsevier
    Respiration Physiology 22 (1974), S. 285-296 
    Details
    ISSN: 0034-5687
    Keywords: Alveolar surface area ; Alveolar wall ; Cat ; Lung inflation ; Pressure-volume relationship ; Surface tension
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0034-5687(74)90078-4
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