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Displaying 276 - 300 of 1415

Optical and microwave frequency synthesis with an integrated fiber frequency comb

June 5, 2006
Author(s)
Ingmar Hartl, Martin E. Fermann, William C. Swann, John J. McFerran, Ian R. Coddington, Qudsia Quraishi, Scott Diddams, Nathan R. Newbury, Carston Langrock, Martin M. Fejer, Paul S. Westbrook, Jeffrey W. Nicholson, K Feder
… we demonstrate microwave stability of better than 2x10 -14 in 1 second for an optically integrated fiber frequency comb. …

Optical and microwave frequency synthesis with an integrated fiber frequency comb

May 21, 2006
Author(s)
L Hartl, Martin E. Fermann, W Swann, John J. McFerran, Ian R. Coddington, Qudsia Quraishi, Scott A. Diddams, Nathan R. Newbury, Carston Langrock, M M. Fejer, P. S. Westbrook, Jeffrey W. Nicholson, K Feder
… we demonstrate microwave stability of better than 2x10 -14 in 1 second for an optically integrated fiber frequency comb. …

Two determinations of the Ge-68 half-life

October 19, 2017
Author(s)
Denis E. Bergeron, Jeffrey T. Cessna, Brian E. Zimmerman
… We determined values for the 68Ge half-life of T1/2 = 271.14(14) d and T1/2 = 271.07(12) d from the NaI(Tl) well counter …

Kinematics of the Sagittarius B2(N-LMH) Molecular Core

October 1, 2003
Author(s)
J M. Hollis, J A. Pedelty, D A. Boboltz, S Y. Liu, Lewis E. Snyder, Patrick Palmer, Francis J. Lovas, P R. Jewell
… Array toward Sagittarius B2(N-LMH) by means of the 5(15)-4(14) rotational transition at 43.5 GHz (lambda similar to mm). The 1.5 x 1.4 VLA beam shows two principal sources of ethyl cyanide …

Hydrogen in nonstoichiometric cubic titanium monoxides: X-ray and neutron diffraction, neutron vibrational spectroscopy and NMR studies

December 1, 2021
Author(s)
A. V. Skripov, A. V. Soloninin, A. A. Valeeva, A. I. Gusev, A. A. Rempel, Hui Wu, Terrence J. Udovic
… and mobility of H atoms in TiO0.72H0.30 and TiO0.96H0.14 using X-ray diffraction (XRD), neutron powder diffraction, … leads to the formation of the two-phase compound TiO0.96H0.14, where the disordered B1-type phase coexists with the … and TiO0.96H0.14 at the frequency scale of about 105 s-1 have been found up to 370 K. …

Report on CCEM-K2 Key Comparison of Resistance Standards at 10 Mohm and 1 Gohm Resistance

June 1, 2002
Author(s)
Ronald F. Dziuba, Dean G. Jarrett
… An international comparison of dc resistance at 10 Mohm and 1 GHohm was organized under the auspices of the Consultative … National Institute of Standards and Technology (NIST) with 14 other national metrology institutes (NMIs) participating. … Ottawa, 1, CA … Key Comparison of Resistance Standards at 10 Mohm and 1 Gohm Resistance …

Powder X-ray structural analysis and band gap measurements for (CaxSr2-x)MnWO6 (x = 0.25, 0.5, 0.75, 1.5, 1.75).

June 1, 2022
Author(s)
Winnie Wong-Ng, YuQi Yang, Yu-Cheng Lan, GuangYao Liu, Amrit Kafle, Weifang Liu, Jie Hou, Donald Windover, Qingzhen Huang, Sergiy Krylyuk, James A. Kaduk
… double perovskites (CaxSr2-x)MnWO6 (x=0.25, 0.5, 0.75, 1.5, 1.75) have been investigated. Powder X-ray diffraction … compounds crystallize in monoclinic space group P21/n (No.14). From (Ca1.75 Sr0.25)MnWO6 to (Ca0.25Sr1.75)MnWO6, … increase from 7.96 (6) to 13.12(8) and from 9.28(7) to 14.87(9) for WO6 octahedra. Correspondingly, the tilt angles …

Biological Uptake and Depuration of Radio-labeled Graphene by Daphnia magna

October 5, 2013
Author(s)
Xiangke Guo, Shipeng Dong, Elijah Petersen, Shiziang Gao, Qingguo Huang, Cheng Gu, Liang Mao
… graphene. RESULTS: After exposure for 24 h to a 250 µg L-1 solution of graphene, the graphene concentration in the organism was nearly 1% of the organism dry mass. These organisms were able to … by the neonates; and c) was accumulated up to nearly 1% of the organism dry mass but was eliminated in the …

Standard Reactions for Comparative Rate Studies: Experiments on the Dehydrochlorination Reactions of 2 Chloropropane, Chlorocyclopentane and Chlorocyclohexane

November 23, 2011
Author(s)
Iftikhar A. Awan, Donald R. Burgess Jr., Wing Tsang, Jeffrey A. Manion
… + HCl) at temperatures of 843 to 1021 K and pressures of 1.4 to 2.4 bar have been carried out using the comparative … been derived using k(cyclohexene → ethene + butadiene) = 1.4x1015 exp( 33500/T) s 1. These data provide a … s 1; 590 K to 1020 K; 1 to 3 bar k(chlorocylohexane) = 10(14.33 ± 0.10)exp(-25950 ± 180) K/T) s 1; 590 K to 1020 K; 1 …

Depletion of Abundant Plasma Proteins and Limitations of Plasma Proteomics

October 1, 2010
Author(s)
Chengjian Tu, Paul A. Rudnick, Misti Y. Martinez, Kristin L. Cheek, Stephen Stein, Robert J. Slebos, Daniel C. Liebler
… Multiple Affinity Removal System TM ( MARS-7 and MARS-14) in the shotgun proteomic analysis of human plasma. We … (LC-MS/MS) to analyze unfractionanted and MARS-7 and MARS-14-depleted plasma proteomes. The MARS colums afforded highly … non-target proteins were captured by the MARS-7and MARS-14 columns . Although some low abundance ( …

TRC Thermodynamic Tables - Hydrocarbons, Supplement 129, 2005

April 11, 2005
Author(s)
Michael D. Frenkel
… 1. Table 23-2-(1.21170)-db - Page db-1696.0 New table for … and hydropyrenes containing vapor pressures. 10. Table 23-14-2-(3.10250)-k - Page k-8415 New table for C3 to C6 … enthalpy, and entropy of phase transition. 12. Table 23-14-2-(3.10250)-m - Page m-8415 New table for C3 to C6 …

TRC Thermodynamic Tables, Hydrocarbon Supplement H-137

April 27, 2009
Author(s)
Michael D. Frenkel
… 1. Table 23-14-2-(33.23500)-d: Pages d-8948.0 and d-8948.1 New table for cyclohexyl phenyl sulfides containing density … for terpenes containing vapor pressures. 9. Tables 23-14-2-(33.23500)-k, ka: Pages k-8948.0 and ka-8948.0 New …

An integrated and automated calibration system for pneumatic piston gauges

October 17, 2017
Author(s)
Yuanchao Yang, Robert G. Driver, John S. Quintavalle, Julia Scherschligt, Katie M. Schlatter, Jacob Edmond Ricker, Gregory F. Strouse, Douglas A. Olson, Jay H. Hendricks
… Two high-resolution pressure transducers with the range of 1.4 MPa and 14 MPa are used to cover the wide calibration range from 10 …

Precision measurement of the radiative beta decay of the free neutron

June 30, 2017
Author(s)
Christopher D. Bass, Maynard S. Dewey, Thomas R. Gentile, Hans Pieter Mumm, Alan Keith Thompson, M J. Bales, R. Alarcon, E J. Beise, H Breuer, Jim Byrne, T E. Chupp, Kevin Coakley, R L. Cooper, B. O'Neill, F E. Wietfeldt
… scintillators detected photons in the energy range of 14 keV to 782 keV. The spectral shape was consistent with … detected photons in the energy range of 0.4 keV to 14 keV. For this array, the spectral shape was consistent …

Precision measurement of the radiative beta decay of the free neutron

June 14, 2016
Author(s)
Jeffrey S. Nico, Kevin J. Coakley, Maynard S. Dewey, Thomas R. Gentile, Hans P. Mumm, Alan Keith Thompson, M J. Bales, R. Alarcon, C. D. Bass, E J. Beise, H Breuer, Jim Byrne, R L. Cooper, B. O'Neill, F E. Wietfeldt, T E. Chupp
… scintillators detected photons in the energy range of 14 keV to 782 keV. The spectral shape was consistent with … detected photons in the energy range of 0.4 keV to 14 keV. For this array, the spectral shape was consistent …

Status Report on the First Round of the SHA-3 Cryptographic Hash Algorithm Competition

September 23, 2009
Author(s)
Andrew R. Regenscheid, Ray A. Perlner, Shu-jen H. Chang, John M. Kelsey, Mridul Nandi, Souradyuti Paul
… on Dec. 10, 2008, marking the beginning of Round 1 of the competition. This report describes the evaluation … review of the first round candidates, and summarizes the 14 candidate algorithms selected as a result on July 24, 2009 for moving forward to Round 2 of the competition. The 14 second round candidates are BLAKE, BLUE MIDNIGHT WISH, …

Large Area Pt/n-GaN Schottky Photodiodes With Extremely Low Leakage Current

August 19, 2004
Author(s)
A Shahid, Robert E. Vest, D Franz, F Yan, Y Zhao, D B. Mott
… photodiodes with very large active areas (0.25 cm 2 and 1 cm u2 ) which exhibit extremely low leakage currents at low … of one of these devices. A leakage current as low as 14 pA at 0.5 V reverse bias is reported, for a 0.25 cm 2 … to a spectral detectivity, 4.62x10 u14 cm Hz u1/2 W u-1 . The spatial responsivity uniformity variation was …

Further Development of a Test Method for the Assessment of the Acute Inhalation Toxicity of Combustion Products.

June 1, 1982
Author(s)
B C. Levin, A J. Fowell, M M. Birky, M Paabo, A Stolte, D Malek
… intended for research and screening purposes. It provides: 1) a method for determining, under flaming and non-flaming … animals (rats) exposed for 30 minutes and observed for 14 days following exposure); 2) an optional procedure to … death of test animals within a 10 minute exposure and a 14 day post-exposure observation period; and 3) a description …
Displaying 276 - 300 of 1415
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