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Displaying 44451 - 44475 of 73929

Resonating torque microbalance for in situ measurements of ferromagnetic films

January 1, 2002
Author(s)
John M. Moreland, James A. Beall, Stephen E. Russek
We describe an instrument for in situ monitoring of the magnetic moment of a thin film during deposition with sub-monolayer sensitivity. The instrument measures the magnetic torque on a film as it is being deposited onto a microcantilever excited near its

Review: SQUID Multiplexers for Transition-Edge Sensors

January 1, 2002
Author(s)
Kent D. Irwin
We review the SQUID multiplexer schemes that are being developed to instrument large-format arrays of superconducting transition-edge sensors. We discuss the choice of an orthogonal basis set to represent the multiplexed signal (such as time or frequency)

Rheology and Flow-Birefringence From Viscoelastic Polymer-Clay Solutions

January 1, 2002
Author(s)
G Schmidt, A Nakatani, Charles C. Han
The shear orientation of viscoelastic clay-polymer solutions was investigated by means of rheology and flow birefringence (δn). The polymer chains are in dynamic adsorption/desorption equilibrium with the clay particles to form a network. The elastic

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
Displaying 44451 - 44475 of 73929
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