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Now showing items 1-10 of 1198

#### Vibrations of the cubane molecule: Inelastic neutron scattering study and theory

(1999)

Cubane (C8H8) is an immensely strained molecule whose C-C-C bond angle is 90° rather than 109.5° as expected for sp3 bonding of carbon. We have measured the intramolecular vibrational spectrum of cubane using inelastic ...

#### An animation system for rigid and deformable models

(1993)

We describe a system for the animation of rigid and deformable models. The system uses the approaches from elasticity theory for animating the models. Two different formulations, namely the primal and the hybrid formulations, ...

#### The demand for energy in the large-scale manufacturing sector of Pakistan

(1990)

The extent of interfuel substitution, as well as substitution between energy and non-energy inputs, in the large-scale manufacturing sector of Pakistan has been examined. The model has been estimated in two stages. In the ...

#### Operational approach to quantum limits on polarization measurement

(1994)

We discuss the polarization measurement of a fully polarized coherent field in the weak intensity quantum limit within the framework of operational approach which was recently discussed by Noh, Fougéres and Mandel. We ...

#### Electric breakdown in polycrystalline semiconductors with highly nonlinear I-V characteristics: Simulations for simple barrier height models

(1997)

An extension of the Canessa and Nguyen binary model for the nonlinear current-voltage (I-V) characteristics of polycrystalline semiconductors, based on the electrical properties of individual grains, is presented. Simple ...

#### Client-server synchronization and buffering for variable rate multimedia retrievals

(1996)

We consider the use of large buffers and feedback as a mechanism to maintain loosely coupled synchronization between a multimedia server and a client. The multimedia stream is modeled as a fluid flow through rate controlled ...

#### 100-GHz resonant cavity enhanced Schottky photodiodes

(1998)

Resonant cavity enhanced (RCE) photodiodes are promising candidates for applications in optical communications and interconnects where ultrafast high-efficiency detection is desirable. We have designed and fabricated RCE ...

#### Characterization of denture acrylic resin surfaces modified by glow discharges

(1997)

Resin samples prepared by compression molding using a poly (methyl methacrylate) (PMMA) denture base material were exposed to radio-frequency (rf) glow discharges to improve the wettability of the material. Fourier transform ...

#### Multi-Hamiltonian structure of equations of hydrodynamic type

(1990)

We complete the discussion of the Hamiltonian structure of 2-component
equations of hydrodynamic type by presenting the Hamiltonian operators for
Euler's equation governing the motion of plane sound waves of nite ...

#### Bi-Hamiltonian structure of the Kermack-McKendrick model for epidemics

(1990)

The dynamical system proposed by Kermack and McKendrick to model the
spread of epidemics is shown to admit bi-Hamiltonian structure without any restrictions
on the rate constants. These two inequivalent Hamiltonian ...