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Displaying 54676 - 54700 of 74483

Entropy Theory and Glass Transition: A Test by Monte Carlo Simulation

March 1, 1997
Author(s)
J Baschnagel, M Wolfgardt, W Paul, K Binder
A generalized entropy theory of glass formation is developed by merging the lattice cluster theoryfor the thermodynamics of semiflexible polymer melts at constant pressure with the Adam-Gibbsrelation between the structural relaxation time and the

Evidence for Glass and Spin-Glass Phase Transitions From the Dynamic Susceptibility

March 1, 1997
Author(s)
D Bitko, S N. Coppersmith, R L. Leheny, S R. Nagel, T F. Rosenbaum, N Menon
We present evidence that there is a phase transition, with a diverging static susceptibility, underlying the transformation of a liquid into a glass. The dielectric susceptibility, at frequencies above its characteristic value, shows a power-law tail

Highly Selective Terahertz Optical Frequency Comb Generator

March 1, 1997
Author(s)
J Ye, L -. Ma, T Daly, John L. Hall
Using a 10.5 GHz resonant electro-optic modulator placed inside a resonant optical cavity, we have generated an optical frequency comb with a span wider than 3 THz. The optical resonator consists of three mirrors, with the output coupler being a thin Fabry

Hybrid Reinforced Precast Frame for Seismic Regions

March 1, 1997
Author(s)
J Stanton, William C. Stone, Geraldine S. Cheok
A precast, prestressed concrete framing system for resisting earthquake loads is described. The system uses both unbonded post-tensioned reinforcement and bonded bar reinforcement. Tests hve shown that its performance is equal or superior to that of a
Displaying 54676 - 54700 of 74483
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