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Displaying 44726 - 44750 of 74189

Scattering by a Dielectric Wedge for Oblique Incidence

January 1, 2002
Author(s)
Egon Marx
Electromagnetic scattering of an incident plane monochromatic wave by dielectric or finitely conducting infinite cylinders of arbitrary cross section can be reduced to the solution of scalar Helmholtz equations in two dimensions for the components of the

Separation of Large Circular DNA by Electrophoresis in Agarose Gels

January 1, 2002
Author(s)
Kenneth D. Cole, C M. Tellez
The electrophoresis of circular DNA, ranging in size from 4.4 kilobase pairs (kbp) to 220 kbp, was studied in agarose gels. Bacterial artificial chromosome (BAC) DNA was used as a source of large supercoiled and open circular (relaxed) forms. the open

Silicon Nanostructures Fabricated by Scanning Probe Lithography and TMAH Etching

January 1, 2002
Author(s)
F S. Chien, W F. Hsieh, S Gwo, Andras Vladar, John A. Dagata
Fabrication of silicon nanostructures is a key technique for the development of monolithically integrated optoelectronic circuits. We demonstrate that the process of scanning probe lithography (SPL) and anisotropic TMAH etching is a low-cost and reliable

Simultaneous Phase Control of Li 2 Wave Packets in Two Electronic States

January 1, 2002
Author(s)
H U. Stauffer, J B. Ballard, Z Amitay, S R. Leone
State-selective phase control of rotational Li 2 wave packets prepared simultaneously in the E( 1ς u +) and E( 1ς g +) electronic state by resonant impulsive simulated Raman scattering, is demonstrated. Following the initial population of a rovibrational

Small Angle Neutron Scattering From Viscoelastic Polymer-Clay Solutions

January 1, 2002
Author(s)
G Schmidt, A Nakatani, Paul Butler, Charles C. Han
The influence of shear on viscoelastic polymer-clay solutions was investigated by means of small-angle neutron scattering (SANS) under shear. SANS measured the shear-induced orientation of polymer and platelets. With increasing shear rate an anisotropic

Small-Scale Tactile Graphics for Virtual Reality Systems

January 1, 2002
Author(s)
John W. Roberts
¿¿¿As virtual reality technology moves forward, there is a need to provide the user with options for greater realism for closer engagement to the human senses. Haptic systems use force feedback to create a large-scale sensation of physical interaction in a
Displaying 44726 - 44750 of 74189
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