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Displaying 44726 - 44750 of 74171

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

Spin Excitations in a Fermi Gas of Atoms

January 1, 2002
Author(s)
B. L. DeMarco, Deborah S. Jin
We have experimentally investigated a a spin excitation in a quantum degenerate Fermi gas of atomes. In the hydrodynamic regime the damping time of the collective excitation is used to probe the quantum behavior of the gas. At temperatures below the Fermi

Stability Analysis of 2-DOF End-Milling for a Range of Radial Immersions

January 1, 2002
Author(s)
P V. Bayly, Tony L. Schmitz, D A. Peters, B P. Mann
Low radial immersion end-milling involves intermittent cutting. If the tool is flexible, its motion in both the x- and y-directions affects the chip load and cutting forces, leading to chatter instability under certain conditions. Interrupted cutting

Standardization of PCR Amplification for Fragile X Trinucleotide Repeat Measurements

January 1, 2002
Author(s)
C D. O'Connell, Donald H. Atha, J P. Jakupciak, Kristy L. Richie
To provide the clinical diagnostics community with accurate protocols and measurements for the detection of genetic disorders, we have established a quantitative a quantitative measurement program for trinucleotide repeats associated with human disease. In
Displaying 44726 - 44750 of 74171
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