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Displaying 42801 - 42825 of 143806

Exchange Coupling in Magnetic Semiconductor Multilayers and Superlattices

May 1, 2012
Author(s)
J. K. Furdyna, J. Leiner, X. Liu, M. Dobrowolska, S. Lee, J.-H. Chung, Brian Kirby
The study of ferromagnetic semiconductors (FMSs) continues to be of great interest because of their potential for spintronic devices. While there has been much progress in our understanding of FMS materials ¿ particularly of the canonical III-V system Ga(1

Extended Lee model for the turbine meter & calibrations with surrogate fluids

May 1, 2012
Author(s)
Jodie G. Pope, John D. Wright, Aaron N. Johnson, Michael R. Moldover
We developed a physical model termed the “extended Lee model” for calibrating turbine meters to account for 1) fluid drag on the rotor, 2) bearing static drag and 3) bearing viscous drag. We tested the extended Lee model using a dual rotor, 2.5 cm diameter

Gas-Foamed Scaffold Gradients for Combinatorial Screening in 3D

May 1, 2012
Author(s)
Carl G. Simon Jr., Kaushik Chatterjee, Alison M. Kraigsley, Joachim Kohn, Durgadas Bolikal
Current methods for screening cell-material interactions typically utilize two-dimensional (2D) culture format where cells are cultured on flat surfaces. However, there is a need for combinatorial and high-throughput screening methods to systematically

In Situ Neutron Techniques for Studying Lithium Ion Batteries

May 1, 2012
Author(s)
Howard Wang, Robert Gregory Downing, Joseph Dura, Daniel S. Hussey
We review in situ neutron techniques for studying lithium ion batteries. Four neutron measurement techniques, neutron depth profiling (NDP), neutron reflectivity (NR), small angle neutron scattering (SANS), and neutron imaging (NI) are discussed in this

Light, atoms and nuclei: the optical discovery of deuterium

May 1, 2012
Author(s)
Charles W. Clark, Joseph Reader
Deuterium was discovered by atomic spectroscopy 80 years ago, and led to the rapid development of nuclear energy and isotope chemistry. Atomic spectroscopy of deuterium remains vibrant, with a recent application to understanding the early universe.
Displaying 42801 - 42825 of 143806
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