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Displaying 11826 - 11850 of 73697

The Ninth Industrial Fluid Properties Simulation Challenge

May 1, 2018
Author(s)
Jonathan D. Moore, Raymond D. Mountain, Richard B. Ross, Vincent K. Shen, Daniel Siderius, Kenneth D. Smith
The Ninth Industrial Fluid Properties Simulation Challenge aimed to test the ability of molecular modeling approaches to predict water/oil interfacial tension (IFT) at conditions of high temperature and pressure. In particular, the challenge featured water

Enhanced superconducting transition temperature in electroplated rhenium

April 30, 2018
Author(s)
David P. Pappas, Don David, Mustafa Bal, Ilke Arslan, Paul T. Blanchard, Ronald B. Goldfarb, Dustin A. Hite, Hsiang S. Ku, Russell E. Lake, Junling Long, Alexana Roshko, Lee D. Pappas, Britton L. Plourde, Jianguo Wen, Xian Wu, Corey Rae H. McRae
We show that electroplated Re films in multilayers with noble metals such as Cu, Au, and Pd have an enhanced superconducting critical temperature relative to previous methods of preparing Re. The dc resistance and magnetic susceptibility indicate a critical

Quasi-Deterministic-Channel-Propagation Model for a Data Center at 60 GHz

April 30, 2018
Author(s)
Camillo Gentile, Peter B. Papazian, Roy Sun, Jelena Senic, Jian Wang
We describe a measurement campaign conducted in a data center, a unique environment in which transceivers are positioned above the server racks. A total of 80 channel acquisitions, including small-scale measurements, were recorded using our 3D double

Thermally driven anomalous Hall effect transitions in FeRh

April 30, 2018
Author(s)
Adrian Popescu, Pablo Rodrigues-Lopez, Paul M. Haney, Lilia M. Woods
Materials exhibiting controllable magnetic phase transitions are currently in demand for many spintronics applications. Here we investigate from first principles the electronic structure and intrinsic anomalous Hall, spin Hall and anomalous Nernst response

Magnetic Ordering in a Frustrated Bow-Tie Lattice

April 28, 2018
Author(s)
Laura J. Vera Stimpson, Efrain E. Rodriquez, Craig Brown, Gavin B. G. Stenning, Marek Jura, Donna C. Arnold
We report a systematic elastic and inelastic powder neutron diffraction study of the geometrically frustrated material, Ca 2Mn 3O 8. Ca 2Mn 3O 8 exhibits a "bow-tie" like connectivity of Mn 4+ with Ca 2+ occupying octahedral sites between MnO 6 layers

Recommended practice for calibrating vacuum gauges of the ionization type

April 27, 2018
Author(s)
James A. Fedchak, Patrick J. Abbott, Jay H. Hendricks, Paul C. Arnold, Neil T. Peacock
This document represents a recommended practice for the calibration of ionization gauges using the comparison method. In this method, ionization gauges are compared to a working standard that has an SI traceable calibration. The ionization gauge is either

In situ infrared spectroscopy during La2O3 ALD using La(iPrCp)3 and H2O

April 26, 2018
Author(s)
Brent A. Sperling, James E. Maslar, Sergei Ivanov
Infrared spectra have been obtained during atomic layer deposition using tris(isopropylcyclopentadienyl)lanthanum, La(iPrCp)3, and water as precursors at 160 °C and 350 °C. Gas-phase spectra of La(iPrCp)3 are additionally obtained for comparison. At low

Naturally Tuned Quantum Critical Point in the S = 1 Kagome YCa 3 (VO) 3 (BO 3 ) 4

April 26, 2018
Author(s)
Harlyn J. Silverstein, Ryan Sinclair, Arzoo Sharma, Yiming Qiu, Ivo Heinmaa, Alexander Leitmae, Christopher R. Wiebe, R. Stern, Haidong Zhou
Although S = 1/2 kagome systems have been intensely studied theoretically, and within the last decade been realized experimentally, much less is known about the S = 1 analogues. While the theoretical ground state is still under debate, it has been found

Terrestrial laser scanner geometric error model parameter correlations in the Two-face, Length-consistency, and Network methods of self-calibration

April 26, 2018
Author(s)
Balasubramanian Muralikrishnan, Ling Wang, Prem K. Rachakonda, Daniel S. Sawyer
Terrestrial laser scanners (TLS) are increasingly used in a variety of applications where accuracies on the order of few tenths of a millimeter or smaller are routinely demanded. Self-calibration is a quick and cost-effective way to improve the accuracy of

Evaluation of Spacecraft Smoke Detector Performance in the Low-Gravity Environment

April 25, 2018
Author(s)
Jiann C. Yang, Thomas G. Cleary, Marit Meyer, D L. Urban, George W. Mulholland, Victoria Bryg, Zeng-guang Yuan, Gary A. Ruff
In the interest of fire prevention, most materials used in the interior construction of manned spacecraft are non- flammable, however, they do produce smoke when overheated. Spacecraft smoke detectors will ideally detect smoke generated by oxidative
Displaying 11826 - 11850 of 73697
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