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Displaying 76 - 100 of 304

Preparation and Standardization of 229Th SRM 4328d

February 24, 2023
Author(s)
Ronald Colle, Lizbeth Laureano-Perez, Morgan DiGiorgio
… on the decay-corrected certified value for SRM 4328c, is (41.19 ± 0.41) Bq·g-1 at k = 2 as of 1200 EST, 14 July 2022. This report …

Towards Quantum Degeneracy of Bosonic and Fermionic Potassium Atoms

November 1, 1999
Author(s)
F S. Cataliotti, Eric A. Cornell, C Fort, M Inguscio, M Prevedelli, G M. Tino
… potassium is composed of three isotopes: 39 K (93.26%), 41 K(6.73%), and 40 K (0.012%). 39 K and 41 K are bosons. 40 K, which is weakly radioactive with a half-life of 1.28x10 9 years, is a fermion. Therefore potassium offers the …

Structural Basis of Thermostability: Analysis of Stabilizing Mutations in Subtilisin BPN

July 26, 2002
Author(s)
O Almog, David Travis Gallagher, Jane E. Ladner, S Strausberg, Patrick Alexander, Phillip Bryan, G L. Gilliland
… BPN' variants, S63 and S88, are reported here at 1.8 and 1.9 resolution, respectively. The micromolar affinity … structures (S63 in space group P2 1 with cell constants 41.2, 78.1, 36.7, and Β = 114.6 and S88 in space group P2 1 2 …

Reference measurements of Hydrogen's Dielectric Permittivity

August 10, 2009
Author(s)
James W. Schmidt, Michael R. Moldover, Eric F. May
… K, we obtained α ε,H2 = (8.9568plus or minus}0.0008) ×10 -41 F m 2 , which agrees with the value (8.9566plus or minus}0.0026) ×10 -41 F m 2 that was obtained by combining Rychlewski's ab …

TRC Thermodynamic Tables - Hydrocarbon Supplement No. H132

September 25, 2006
Author(s)
Michael D. Frenkel
… for the real fluid at selected temperatures and pressures. 9. Table 23-2-(1.20510)-jk - Pages jk-1570.0 to jk-1570.11 … at selected temperatures and pressures. 11. Tables 23-2-(41.45700)-k and -ka - Pages k and ka-4570 New tables for … enthalpy, and entropy of phase transition. 15. Table 23-2-(41.45700)-m - Page m-4570.0 New table for indene and hydrated …

Tissue Distribution of Perfluoroalkyl Acids (PFAAs) and Health Status in Wild Mozambique Tilapia (Oreochromis mossambicus) from Loskop Dam, Mpumalanga, South Africa

November 29, 2017
Author(s)
Jacqueline T. Bangma, Jessica L. Reiner, Hannes Botha, Theresa M. Cantu, Marco Gouws, Matthew P. Guillette, Jeremy P. Koelmel, Wilmien Luus-Powell, Olivia Rynders, Joseph Sara, Willem J. Smit, John Bowden
… and included in statistical analysis (PFOS (median, 41.6 ng/g), PFDA (median, 4.54 ng/g), PFNA (median, 1.55 ng/g), PFUnA (median, 1.41 ng/g), PFDoA (median, 1.41 ng/g), PFOSA (median, 0.768 … order): liver (median, 11.6 ng/g), kidney (median, 9.04 ng/g), spleen (median, 5.92 ng/g), adipose (median, 2.54 …

Pulsed-Laser Metrology at NIST

February 1, 2001
Author(s)
Marla L. Dowell
… lives. Since the inception of the first operable laser 41 years ago, there has been explosive growth in the number …

Quantification Approaches in Non-Target LC/ESI/HRMS Analysis: An Interlaboratory Comparison

October 1, 2024
Author(s)
Clay Davis, Anneli Kruve-Viil, Louise Malm, Jaanus Liigand, Reza Aalizadeh, Nikiforos Alygizakis, Emil Egede Frokjaer, Mulatu Yohannes Nanusha, Martin Hansen, Merle Plassmann, Stefan Bieber, Thomas Letzel, Lydia Balest, Pier Paolo Abis, Michele Mazzetti, Barbara Kasprzyk-Hordern, Nicola Ceolotto, Sangeeta Kumari, Stephan Hann, Sven Kochmann, Teresa Steininger-Mairinger, Coralie Soulier, Giuseppe Mascolo, Sapia Murgolo, Manuel Garcia-Vara, Miren Lopez de Alda, Juliane Hollender, Katarzyna Arturi, Gianluca Coppola, Massimo Peruzzo, Hanna Joerss, Carla van der Neut-Marchand, Eelco N. Pieke, Ruben Gil-Solsona, Viktoria Licul-Kucera, Claudio Roscioli, Sara Valsecchi, Austeja Luckute, Jan H. Christensen, Selina Tisler, Dennis Vughs, Nienke Meekel, Begona Talavera Andujar, Dagny Aurich Dagny Aurich, Emma L. Schymanski, Gianfranco Frigerio, Andre Macherius, Uwe Kunkel, Tobias Bader, Pawel Rostkowski, Hans Gundersen, Belinda Valdecanas, Bastian Schulze, Sarit Kaserzon, Martijn Pijnappels, Mar Esperanza, Aurelie Fildier, Emmanuelle Vulliet, Laure Wiest, Adrian Covaci, Alicia Macan Schonleben, Lidia Belova, Alberto Celma, Lubertus Bijlsma, Emilie Caupos, Emmanuelle Mebold, Julien Le Roux, Eugenie Troia, Eva de Rijke, Rick Helmus, Gaela Leroy, Niels Haelewyck, David Chrastina, Milan Verwoert, Nikolaos S. Thomaidis
… variability of five quantification approaches across 41 NTS methods from 37 laboratories. Three approaches are … at 2 concentration levels were analyzed together with 41 calibrants at 6 known concentrations by the laboratories …

IN-PROCESS DATA FUSION FOR PROCESS MONITORING AND CONTROL OF METAL ADDITIVE MANUFACTURING

November 17, 2021
Author(s)
Zhuo Yang, Yan Lu, Simin Li, Jennifer Li, Yande Ndiaye, Hui Yang, Sundar Krishnamurty
To accelerate the adoption of Metal Additive Manufacturing (MAM) for production, an understanding of MAM process-structure-property (PSP) relationships is indispensable for quality control. A multitude of physical phenomena involved in MAM necessitates the

Low noise resistive bolometer read out for wideband room temperature infrared detector

September 25, 2016
Author(s)
Ivan Ryger, Malcolm G. White, Nathan A. Tomlin, John H. Lehman, Peter Lobotka, Dave Harber
The absolute electrical substitution radiometer is the way to ensure highly accurate and stable measurement of optical power in wide range of optical wavelength. Its sensitivity is mainly determined by temperature stability of the equithermal bath and
Displaying 76 - 100 of 304
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