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Displaying 201 - 222 of 222

Speed of Sound Measurements of Binary Mixtures of Hydrofluorocarbons [Pentafluoroethane (R-125), 1,1-Difluoroethane (R-152a), or 1,1,1,2,3,3,3-Heptafluoropropane (R-227ea)] with Hydrofluoroolefins [2,3,3,3-Tetrafluoropropene (R-1234yf) or trans-1,3,3,3-Te

June 28, 2022
Author(s)
Aaron Rowane, Richard A. Perkins
… for R-1234ze(E)/227ea blends range from 0.62 % to 0.94 %. The comparisons show that only minor adjustments are … represent R-1234ze(E) speed of sound values and (2) uses binary interaction parameters for the chemically … (R-125), 1,1-Difluoroethane (R-152a), or 1,1,1,2,3,3,3-Heptafluoropropane (R-227ea)] with Hydrofluoroolefins …

Structure and Crystal Chemistry of M 0.5 Ta 0.5 B (M = Ti, Zr, and Hf)

October 12, 2021
Author(s)
I Talmy, J Zaykoski, J A. Kudak, Winnie Wong-Ng
… a=6.12969(6) , b=3.08700(4) , c=4.63558(7) , and V= 87.716(2) 3 for Ti0.5Ta0.5B, a=6.27439(8) , b=3.16370(4) , c=4.78060(7) , and V= 94.897(3) 3 for Zr0.5Ta0.5B, and a=6.30325(8) , b=3.15748(6) , c=4.79499(6) , and V= 95.432(2) 3 for Hf0.5Ta0.5B. In the M0.5Ta0.5B (M=Ti, Zr, or Hf) …

Modeling, Validation and Verification of Three-Dimensional Cell-Scaffold Contacts from Terabyte- sized Images

December 1, 2017
Author(s)
Peter Bajcsy, Sowon Joy Yoon, Stephen Florczyk, Nathan Hotaling, Mylene H. Simon, Piotr Szczypinski, Nicholas J. Schaub, Carl G. Simon Jr., Mary C. Brady, Ram D. Sriram
… microscopy (AFM) images with an average accuracy of R^2=0.988± 0.006 . A cylindrical model for fiber scaffolds was … report the accuracy of cell segmentation to be 96.4% with 94.3% precision, and the accuracy of cell-scaffold contact … statistical intensity and geometrical shape assumptions, (2) designing a methodology for validating 3D geometrical …

New Calcium Tantalate Polytypes in the System Ca 2 Ta 2 O 7 - Sm 2 Ti 2 O 7

February 1, 2000
Author(s)
I E. Grey, Robert S. Roth
… related structures have been prepared by doping Ca 2 Ta 2 O 7 with Sm 2 Ti 2 O 7 . Trigonal 6-layer (6T) and … O 7 , has a = 12.763(1), b = 7.310(1), c = 30.190(1) , b = 94.09 (1), Z=20, space group C2. The 6T structure is related … Ca 2 Ta 2 O 7 , crystal structure, weberite polytypes …

A Thermodynamic and Quantum Chemical Study of the Conversion of Chorismate to (Pyruvate + 4-Hydroxybenzoate)

October 22, 1998
Author(s)
Yadu D. Tewari, J Chen, Marcia J. Holden, K. N. Houk, Robert N. Goldberg
… investigation of the conversion of chorismate 2- (aq) to {pyruvate - (aq) + 4-hydroxybenzoate - (aq)} has … equal to} 10 37 for the conversion of chorismate 2- (aq) to {pyruvate - (aq) + 4-hydroxybenzoate - (aq)} at T = 298.15 K and I m = 0. Quantum mechanics (Gaussian 94 with a B3LYP functional and a 6-31G* basis set) was used …

Evaluation of Nanoscale Accessible Pore Structures for Improved Prediction of Gas Production Potential in Chinese Marine Shales

December 20, 2018
Author(s)
Yang Wang, Yong Qin, Rui Zhang, Lilin He, Lawrence M Anovitz, Markus Bleuel, David F. Mildner, Shimin Liu, Yanming Zhu
… and mass fractals were identified by SANS ranging between 2.41 and 2.85 for the six tested Chinese marine shales. Porosity and specific surface area ranged between 2.31% and 14.94% and between 0.50x10 5 cm 2 /cm 3 and 9.86x10 5 cm 2 /cm 3 …

Effect of Collagen in Calcium Phosphate Cement on Mechanical and Cellular Properties

December 23, 2008
Author(s)
Jennifer L. Moreau, Michael Weir, Hockin D. Xu
… (p < 0.05), at a CPC powder to liquid (P/L) ratio of 2.5. At P/L = 3, work-of-fracture was increased from (22.2 3.8) J/m2 without collagen, to (381 119) J/m2 with 4.05 % collagen (p < 0.05). At P/L of 3 and 2.5, collagen volume fraction had no significant effect on …

Developing the United States GReenhouse gas And Air Pollutants Emissions System (GRA2PES)

October 11, 2025
Author(s)
Congmeng Lyu, Colin Harkins, Meng Li, Kimberly Mueller, Jack Prothero, Bert Verreyken, John Miller, Scott Lehman, Jeff Peischl, Jessica Gilman, CARSTEN WARNEKE, MATTHEW COGGON, Chelsea Stockwell, Steve Brown, Kristen Zuraski, Aaron Lamplugh, kevin gurney, Lech Gawuc, Pawlok Dass, Rachel Hoesly, Steve Smith, Tomohiro Oda, Lucy Hutyra, Conor Gately, claire granier, James Whetstone, BRIAN MCDONALD
… across publicly available inventories (-44% to +94%). GRA2PES AQ/ffCO2 ratios generally agree with field …

Full-Scale Flammability Measures for Electronic Equipment.

December 1, 2004
Author(s)
Matthew F. Bundy, Thomas J. Ohlemiller
This report describes an experimental investigation by NIST to study the fire hazard of electronic equipment having thermoplastic enclosures. This work was part of the project titled "Flammability Measures for Electronic Equipment" which was supported

Effects of Interaction Potential on Elastic-Electron-Scattering Parameters in Surface-Sensitive Electron Spectroscopies

August 1, 2000
Author(s)
Aleksander Jablonski, Cedric J. Powell
… differences in these probabilities varying between 1.2 and 9.4% for emission angles of 45 10 . Monte Carlo … in the results for the two potentials did not exceed 2% for the signal intensities, were generally less than 10% … the emission depth distribution functions, and less than 2.5% for the mean escape depths. The lack of sensitivity of …

Results of German external quality assessment schemes for SARS-CoV-2 antigen detection

August 14, 2023
Author(s)
Laura Vierbaum, Nathalie Wojtalewicz, Peter Grunert, Anika Zimmerman, Annemarie Scholz, Sabine Goseberg, Patricia Kaiser, Ulf Duehring, Christian Drosten, Victor Max Corman, Daniela Niemeyer, Holger F. Rabenau, Martin Obermeier, Andreas Nitsche, Janine Michel, Jim Huggett, Denise O'Sullivan, Simon Cowen, Peter Vallone, Megan Cleveland, Samreen Falak, Andreas Kummrow, Ingo Schellenberg, Heinz Zeichhardt, Martin Kammel
… performed external quality assessments (EQA) for SARS-CoV-2 antigen detection with lyophilized and chemically … inactivated cell culture supernatant of SARS-CoV-2 infected Vero cells. A pre-study demonstrated the … immunoassays. The inter-laboratory results showed at least 94% correct results for non-variant of concern (VOC) …

A Study of the predissociation of NaK molecules in the (6 1sigma+) state by optical-optical double resonance spectroscopy

July 6, 1997
Author(s)
Zeina J. Kubarych, J Huennekens
… A single-mode ring dye laser is set to a particular 2(A)/sup 1/ Sigma /sup +/( nu ', J') from 1(X)/sup 1/ Sigma … (Ti-sapphire) is then used to excite the molecule from the 2(A)/sup 1/ Sigma /sup +/( nu ', J') level, to ovibrational … is monitored by the atomic potassium emission on the 3/sup 2/D/sub 3/2/ to 4/sup 2/P/sub 1/2/ transition at 1.17 mu m, …
Displaying 201 - 222 of 222
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