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  • 1
    Electronic Resource
    Electronic Resource
    Effects of pole flux distribution in a homopolar linear synchronous machine : 38th Annual Conference on Magnetism and Magnetic Materials (1994)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 75 (1994), S. 6987-6989 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Linear forms of synchronous electrical machine are at present being considered as the propulsion means in high-speed, magnetically levitated (Maglev) ground transportation systems. A homopolar form of machine is considered in which the primary member, which carries both ac and dc windings, is supported on the vehicle. Test results and theoretical predictions are presented for a design of machine intended for driving a 100 passenger vehicle at a top speed of 400 km/h. The layout of the dc magnetic circuit is examined to locate the best position for the dc winding from the point of view of minimum core weight. Measurements of flux build-up under the machine at different operating speeds are given for two types of secondary pole: solid and laminated. The solid pole results, which are confirmed theoretically, show that this form of construction is impractical for high-speed drives. Measured motoring characteristics are presented for a short length of machine which simulates conditions at the leading and trailing ends of the full-sized machine. Combination of the results with those from a cylindrical version of the machine make it possible to infer the performance of the full-sized traction machine. This gives 0.8 pf and 0.9 efficiency at 300 km/h, which is much better than the reported performance of a comparable linear induction motor (0.52 pf and 0.82 efficiency). It is therefore concluded that in any projected high-speed Maglev systems, a linear synchronous machine should be the first choice as the propulsion means.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.356750
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    THE BASIC AND CLINICAL PHARMACOLOGY OF NONPEPTIDE VASOPRESSIN RECEPTOR ANTAGONISTS (2001)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Pharmacology 41 (2001), S. 175-202 
    Details
    ISSN: 0362-1642
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Medicine , Chemistry and Pharmacology
    Notes: Abstract The neurohypophysial hormone arginine vasopressin (AVP) is a cyclic nonpeptide whose actions are mediated by the stimulation of specific G protein-coupled membrane receptors pharmacologically classified into V1-vascular (V1R), V2-renal (V2R) and V3-pituitary (V3R) AVP receptor subtypes. The random screening of chemical compounds and optimization of lead compounds recently resulted in the development of orally active nonpeptide AVP receptor antagonists. Potential therapeutic uses of AVP receptor antagonists include (a) the blockade of V1-vascular AVP receptors in arterial hypertension, congestive heart failure, and peripheral vascular disease; (b) the blockade of V2-renal AVP receptors in the syndrome of inappropriate vasopressin secretion, congestive heart failure, liver cirrhosis, nephrotic syndrome and any state of excessive retention of free water and subsequent dilutional hyponatremia; (c) the blockade of V3-pituitary AVP receptors in adrenocorticotropin-secreting tumors. The pharmacological and clinical profile of orally active nonpeptide vasopressin receptor antagonists is reviewed here.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.pharmtox.41.1.175
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  • 3
    Electronic Resource
    Electronic Resource
    Visual scanning during pattern recognition in children and adults
    Amsterdam : Elsevier
    Journal of Experimental Child Psychology 30 (1980), S. 265-276 
    Details
    ISSN: 0022-0965
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Psychology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0022-0965(80)90062-4
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  • 4
    Electronic Resource
    Electronic Resource
    Chaotic inflation
    Amsterdam : Elsevier
    Nuclear Physics, Section B 298 (1988), S. 701-725 
    Details
    ISSN: 0550-3213
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0550-3213(88)90004-1
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    A stochastic cosmological model
    Amsterdam : Elsevier
    Physics Letters A 144 (1990), S. 65-70 
    Details
    ISSN: 0375-9601
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0375-9601(90)90825-9
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    Paper (German National Licenses)
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