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Displaying 48076 - 48100 of 143714

New Intermetallics YbAu2In4 and Yb2Au3In5

October 20, 2010
Author(s)
Peter C. Sebastian, James Salvador, Joshua B. Martin, Mercouri G. Kanatzidis
The intermetallic compounds YbAu2In4 and Yb2Au3In5 were obtained as single crystals in high yield from reactions run in liquid indium. Single crystal X-ray diffraction data of YbAu2In4 showed that it crystallizes as a new structure type in the monoclinic

Security Assurance Levels: A Vector Approach to Describing Security Requirements

October 20, 2010
Author(s)
James D. Gilsinn, Ragnar Schierholz
Safety systems have used the concept of safety integrity levels (SILs) for almost two decades. This allows the safety of a component or system to be represented by a single number that defines a protection factor required to ensure the health and safety of

Vision Guided Multi-Probe Assembly of 3D Microstructures

October 20, 2010
Author(s)
John D. Wason, John T. Wen, Young M. Choi, Jason J. Gorman, Nicholas Dagalakis
This paper describes the operator assisted automated assembly of a 3-legged spatial platform by using a vision guided multi-probe assembly process. This is the first step towards the ultimate goal of building a microscale active spatial platform. Two

Cell Contact Guidance in Response to Nanopattern Shape and Height

October 18, 2010
Author(s)
Sheng Lin-Gibson, Jirun Sun, Nancy J. Lin, Jing N. Zhou, Hyun W. Ro, Christopher L. Soles, Marcus T. Cicerone, Yifu Ding
Understanding the correlation between cell contact guidance (CG) and nanoscale surface features is vital in designing advanced medical devices to manipulate cell behaviors. Nanoscale surface features that mimic extracellular matrix are critical

Organic Compounds in the C3H6O3 Family: Microwave Spectrum of cis-cis-Dimethyl Carbonate

October 18, 2010
Author(s)
Francis J. Lovas, David F. Plusquellic, Susanna L. Widicus Weaver, B. A. McGuire, G. A. Blake
Geometry optimization calculations on 13 members of the C3H6O3 family of organic species have been carried out to determine their relative binding energies. Dimethyl carbonate [(CH3)2CO3] is one of the lower energy species in this family, which includes

A Wide Angle Neutron Spin Filter System Using Polarized 3He

October 16, 2010
Author(s)
Changbo Fu, Thomas R. Gentile, Wangchun Chen, Ross Erwin, Shannon M. Watson, Collin L. Broholm, Jose Rodriguez Rivera, Julia Scherschligt, G L. Jones
Polarized 3He neutron spin filters can operate over a wide neutron energy range and provide a large angular acceptance. A compact 3He neutron spin filter system has been developed for the Multi Axis Crystal Spectrometer at the NIST Center for Neutron

Integrated Computational Materials Engineering, CALPHAD and Hans Leo Lukas

October 16, 2010
Author(s)
Ursula R. Kattner, H. J. Seifert
Integrated Computational Materials Engineering (ICME) has become one of the new hot topics in materials science and engineering in recent years, and worldwide numerous conferences and symposia have been dedicated to this topic. In the report of the

The Roles of the Mise en Pratique for the Definition of the Kelvin

October 16, 2010
Author(s)
Dean C. Ripple, Richard Davis, Bernd Fellmuth, Joachim Fischer, Graham Machin, Terry Quinn, Peter Steur, Osamu Tamura, David R. White
The mise en pratique (“practical realization”) for the definition of the kelvin (MeP-K) was created by the Consultative Committee for Thermometry (CCT) in 2006 to give practitioners of thermometry a guide to the realization of the kelvin, in accord with

A liquid helium target system for a measurement of parity violation in neutron spin rotation

October 15, 2010
Author(s)
Christopher D. Bass, Tiffany D. Bass, B R. Heckel, C. R. Huffer, Paul R. Huffman, D Luo, D M. Markoff, A M. Micherdzinska, William M. Snow, H E. Swanson, S. C. Walbridge
A liquid helium target system was designed and built to perform a precision measurement of the parity-violating neutron spin rotation in helium due to nucleon-nucleon weak interaction. The measurement employed an orthogonally-crossed neutron polarizer
Displaying 48076 - 48100 of 143714
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