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Displaying 726 - 750 of 1005

Liquid Viscosity and Surface Tension of n-Hexane, n-Octane, n-Decane, and n-Hexadecane up to 573 K by Surface Light Scattering (SLS)

August 16, 2019
Author(s)
Tobias Klein, Shaomin Yan, Junwei Cui, Joe W. Magee, Kenneth Kroenlein, Michael H. Rausch, Thomas M. Koller, Andreas P. Froba
In the present study, the simultaneous and accurate determination of liquid viscosity and surface tension of the n-alkanes n-hexane (n-C6H14), n-octane (n-C8H18), n-decane (n-C10H22), and n-hexadecane (n-C16H34) by surface light scattering (SLS) in

Anisotropic Spin Fluctuations in Detwinned FeSe

July 1, 2019
Author(s)
Tong Chen, Youzhe Chen, Andreas Kreisel, Xingye Lu, Astrid Schneidewind, Yiming Qiu, J. T. Park, Toby G. Perring, J. Ross Stewart, Huibo Cao, Rui Zhang, Yu Li, Yan Rong, Yuan Wei, Brian M. Andersen, P. J. Hirschfeld, Collin L. Broholm, Pengcheng Dai
… rotational symmetry in the iron plane [Fig. 1(a)] [1-4]. Although this phase in FeSe is established below a … 3-5 meV, indicating the existence of a gaped four-fold (C 4 ) mode with incommensurate dispersion around 5-6 meV. Upon … resonance (Ε = 3.7 meV) which is only exhibited at Q AF [17-20]. These results are consistent with angle resolved …

Pattern Transfer of Hydrogen Depassivation Lithography Patterns into Silicon with Atomically Traceable Placement and Size Control

July 17, 2014
Author(s)
Josh Ballard, Stephen McDonnell, Don Dick, Maia Bischof, Joseph Fu, D Jaeger, James Owen , w Owen, Justin Alexander, Udi Fuchs, Pradeep Namboodiri, Kai Li, John Randall, Robert Wallace, Yves Chabal, Richard Reidy, Richard M. Silver
… transfers the mask pattern onto Si with pattern height of 17 nm, critical dimension of approximately 6 nm, and …

Hybrid-Phospholipid Bilayer Coatings for Separations of Cationic Proteins in Capillary Zone Electrophoresis

January 20, 2014
Author(s)
Elyssia S. Gallagher, Seid M. Adem, Leonard K. Bright, Elisabeth Mansfield, Craig A. Aspinwall
… or octyl-modified capillaries, respectively, compared to 17 ± 1 mJ / m2 for bare capillaries. HPBs were formed by … and reduced electroosmotic mobilities (1.3 - 1.9 × 10-4 cm2 / Vs) compared to bare capillaries (6.0 ± 0.2 × 10-4 cm2 / Vs). Finally, in all HPB-coated capillaries, peaks …

Optical two-way time and frequency transfer over free space

April 28, 2013
Author(s)
Fabrizio R. Giorgetta, William C. Swann, Laura C. Sinclair, Esther Baumann, Ian R. Coddington, Nathan R. Newbury
… timing jitter and accuracies below 1 × 10 −17 . Commensurate optically based transfer methods are … below 1 × 10 −18 at 1,000 s and systematic offsets below 4 × 10 −19 , despite frequent signal fading due to …

Recommended viscosities of 11 dilute gases at 25?degC

December 13, 2012
Author(s)
Robert F. Berg, Michael R. Moldover
… we reviewed measurements of viscosity conducted with 17 instruments near 25 °C and zero density for 11 gases: He, Ne, Ar, Kr, Xe, H 2 , N 2 , CH 4 , C 2 H 6 , C 3 H 8 , and SF 6 . For these gases and this … with relative standard uncertainties ranging from 1.0×10 -4 to 2.7×10 -4 at a 68 % confidence level. Anchoring the …

Encapsulated Chondrocyte Response to Pulsatile Flow Bioreactor

August 16, 2006
Author(s)
James A. Cooper, W Li, L A. Bailey, Steven D. Hudson, Sheng Lin-Gibson, Kristi S. Anseth, Rocky Tuan, N Washburn
… for 7 d, 14 d and 21 d at flow rates of 15 mL/min and 17 mL/min and compared to scaffolds cultured under static …

The TREC-2002 Video Track Report

April 1, 2003
Author(s)
Alan Smeaton, Paul D. Over
… groups, educational institutions, and individuals. 17 teams representing 5 companies and 12 universities --- 4 from Asia, 9 from Europe, and 4 from the US --- participated in one or more of three tasks …

Modeling Community Resilience: Update on the Center for Risk-Based Community Resilience Planning and the Computational Environment IN-CORE

November 15, 2018
Author(s)
John W. van de Lindt, Bruce Ellingwood, Therese P. McAllister, Paolo Gardoni, Daniel Cox, Walter G. Peacock, Harvey Cutler, Maria Dillard, Jong Lee, Lori Peek, Judith Mitrani-Reiser
Community resilience is often defined as the ability of a community to prepare for, absorb, and recover rapidly from a hazard event. In 2015, the U.S. National Institute of Standards and Technology (NIST) funded the Center for Risk-Based Community

Sub-Nanometer Wavelength Metrology of Lithographically Prepared Structures: A Comparison of Neutron and X-Ray Scattering

June 1, 2003
Author(s)
Ronald L. Jones, T Hu, Eric K. Lin, Wen-Li Wu, D M. Casa, Ndubuisi George Orji, Theodore V. Vorburger, P J. Bolton, Z Barclay
The challenges facing current metrologies based on SEM, AFM, and light scatterometry for technology nodes of 157 nm imaging and beyond suggest that the development of new metrologies capable of routine measurement in this regime are required. We provide

Mean Recurrence Intervals of Ultimate Wind Loads

July 1, 1998
Author(s)
Emil Simiu, A N. Heckert, T Whalen
The attention of wind engineers and extreme value climatologists has been focused in the last few decades on estimates of basic windspeeds, that is, wind speeds with 50 year or 100 year mean recurrence intervals (MRIs). Recently, however, efforts have been

Atomic vapor cells for miniature frequency references

May 8, 2003
Author(s)
Svenja A. Knappe, V. Velichansky, Hugh Robinson, Li-Anne Liew, John M. Moreland, John Kitching, Leo W. Hollberg
We report on the fabrication of millimeter-sized vapor cells and their performance on atomic clocks based on coherent population trapping (CPT). We discuss two fabrication techniques, the first one based on hollow-core pyrex fibers, fused with a CO 2 laser
Displaying 726 - 750 of 1005
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