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Displaying 1176 - 1200 of 1415

UTSA-74: A MOF-74 Isomer with Two Accessible Binding Sites per Metal Center for Highly Selective Gas Separation

May 4, 2016
Author(s)
Feng Luo, Changsheng Yan, Lilong Dang, Rajamani Krishna, Wei Zhou, Hui Wu, Xinglong Dong, Yu Han, Tong-Liang Hu, Michael O'Keeffe, Lingling Wang, Mingbiao Luo, Rui-Biao Lin, Banglin Chen
… (H 2 O)(dobdc)¿0.5(H 2 O) (UTSA-74, H 4 dobdc=2,5-dioxido-1,4- benzenedicarboxylic acid), Zn-MOF-74/CPO-27-Zn isomer, … ) than Zn-MOF-74 (146 cm 3 /cm 3 ) at room temperature and 1 bar, leading to a superior MOF material for highly …

A TWSTFT calibration guideline and the use of a GPS calibrator for UTC TWSTFT link calibration

January 25, 2016
Author(s)
Zhiheng Jiang, Demetrios Matsakis, Victor S. Zhang, Hector Esteban, Dirk Piester, Shinn-Yan Lin
… the Coordinated Universal Time (UTC) generation in 1999 [1,19]. These TWSTFT links were calibrated by alignment with … ground station (MB) with uncertainty at the level of 1 ns [2,3,15,21,22]. The use of MB in TWSTFT link calibration … the attainable uncertainty of the GPS link calibration [14,16,17]. Finally we show in the Annex an example report of …

Research Roadmap for Smart Fire Fighting

June 11, 2015
Author(s)
Anthony P. Hamins, casey grant, Nelson P. Bryner, Albert W. Jones, Galen H. Koepke
… fires resulted in approximately 2850 civilian fatalities, 14,000 injuries, and estimated property losses of $10 billion …

International Comparison of Surface Roughness, APMP.L-K8

June 17, 2013
Author(s)
Andrew Baker, Siew-Leng Tan, Richard Leach, Lena Jung, Seung Yin Wong, Anusorn Tonmueanwai, Kazuya Naoi, Jaewan Kim, Thomas Brian Renegar, K P Chaudhary, Louise Mostert, Mohamed Amer, Sitian Gao, Chin-Lung Tsai, Ngo N. Anh, Augustinus Drijarkara
… type D profiles have nominal Ra values of 0.2 μm, 0.95 μm, 1.5 μm and 3.1 μm. Two softgauges were also circulated for comparison of … while for the type C and type D standards and softgauges, 14 different roughness parameters are reported between them. …

Hospital Readmission by Method of Data Collection

April 11, 2013
Author(s)
Elizabeth M. Hechenbleikner, Martin A. Makary, Daniel Samarov, Jennifer L. Bennett, Susan L. Gearhart, Jonathan E. Efron, Elizabeth C. Wick
… in NSQIP and UHC; unplanned readmissions occurred in 14.7%(108 patients) and 17.6%(129 patients), respectively. … discrepancy in definition(n=2), or oversight(n=1). UHC identified 31 readmissions not found in NSQIP because …

Demonstration of Superluminal Images

June 19, 2012
Author(s)
Ryan T. Glasser, Ulrich Vogl, Paul D. Lett
… theoretically and experimentally in a variety of systems [1–5]. The anomalous dispersion required for generating “fast” … inherently multi-spatial-mode and can support images [13, 14]. Here we present the experimental demonstration of the …

Relativity and Optical Clocks

September 24, 2010
Author(s)
Chin-Wen Chou, David Hume, Till P. Rosenband, David J. Wineland
… if two identical clocks are separated vertically by 1 km near the surface of the earth, the higher clock emits … of less than 10 m/s and changes in height of less than 1 m. This sensitivity to small relativistic clock shifts is … as well as the high quality factor (Q = 4.2×10 14 ) in the clock's observed atomic resonance. The clocks …

Development of secondary standards for radium-223

November 5, 2009
Author(s)
Denis E. Bergeron, Brian E. Zimmerman, Jeffrey T. Cessna
… and the 20 mL dose vial geometries differed by less than 1 % for all but one of the chambers. For the one exception, the difference was 1.14 % and the calibration factors agreed to within the …
Displaying 1176 - 1200 of 1415
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