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Displaying 53751 - 53775 of 73697

Experimental Observations of PMMA Spheres Burning at Reduced Gravity

May 19, 1997
Author(s)
Jiann C. Yang, Anthony P. Hamins, M Glover, M D. King
Polymer combustion is a very complicated process which involves the coupling of gas-phase combustion, melting, pyrolysis and possible charring of the condensed phase. Although only a few studies on the combustion of a spherically shaped polymer have been

Flammability Studies of New Cyanate Ester Resins

May 4, 1997
Author(s)
Jeffrey W. Gilman, Richard H. Harris Jr., James E. Brown
We have synthesized several new cyanate ester functionalized polystyrene polymers and copolymers. Poly(4-cyanatostyrene), PCS, poly(4-cyanatostyrene) "polymer grade", PCS-PG, poly(4-cyanatostyrene "novalak grade", PCS-NG, poly(4-cyanatostyrene-co

Book Review: Van der Waals and Molecular Science

May 1, 1997
Author(s)
Johanna Levelt Sengers, S G. Brush
Among 19th-century founders of statistical-molecular physics. Several such as Maxwell, Boltzmann, and Gibbs, have been the subject of book-length biographies and historical articles analysing their work. Comparatively little has been written in English

Computation of Fresnel Integrals

May 1, 1997
Author(s)
Klaus Mielenz
This paper summarizes the theory of Fresnel diffraction by rectangular and circular apertures with a view toward numerical computations. Approximations found in the earlier literature, and now obsolete, were eliminated and replaced by algorithms suitable

Electrothermal Simulation of an IGBT PWM Inverter

May 1, 1997
Author(s)
Alan Mantooth, Allen R. Hefner Jr.
A recently developed electrothermal network simulation methodoogy is used to analyze the behavior of a full-bridge, pulse-width modulated (PWM), voltage-source inverter, which uses insulated gate bipolar transistors (IGBT's) as the switching devices. The
Displaying 53751 - 53775 of 73697
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