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NIST Authors in Bold

Displaying 1226 - 1250 of 1415

Spatial Variation in Mercury Accumulation in Bottlenose Dolphins (Tursiops spp.) in Southeastern U.S.A.

April 30, 2024
Author(s)
Mackenzie Griffen, Colleen E. Bryan Sallee, Tara Cox, Brian Balmer, Russell Day, Laura Garcia Barcia, Antoinette Gorgone, Jeremy Kiszka, Jenny Litz, Robin Perrtree, Teri Rowles, Lori Schwacke, Randall Wells, Eric Zolman
… Joseph Bay, Florida Everglades, and Choctawhatchee Bay (14,193 ng/g ± 2196 ng/g, 10,916 ng/g ± 1532 ng/g, and 7333 … in Charleston and Skidaway River Estuary (509 ng/g ± 32.1 ng/g and 530 ng/g ± 58.4 ng/g wm, respectively). Spatial …

Enhanced strength of additively manufactured Inconel 718 by means of a simplified heat treatment strategy

October 27, 2023
Author(s)
Jake Benzing, Nicholas Derimow, Orion Kafka, Nik Hrabe, Philipp Schumacher, Don Godfrey, Chad Beamer, Priya Pathare, Jay Carroll, Ping Lu, Isaiah Trujillo, Frank DelRio
This study simplified the heat treatment route and reduced the post-processing burden for laser powder bed fusion IN718 (a nickel-based superalloy). The tailored route retained advantageous microstructures and improved tensile strength when compared to the

Multivariate Flexible Framework with High Usable Hydrogen Capacity in a Reduced Pressure Swing Process

April 12, 2023
Author(s)
Arijit Halder, Ryan Klein, Sarah Shulda, Gavin McCarver, Philip Parilla, Hiroyasu Furukawa, Craig Brown, C. Michael McGuirk
… in the mul-tivariate framework sod–Cd(benzimidazolate)1.87(2–methyl–5,6–difluorobenzimidazolate)0.13 (ratio = 14:1) which exhibited a considerably reduced stepped adsorp-tion … usable capacities in a mild pressure swing process above 1 wt%, representing 85–92% of the total capacities. This work …

The effects of diffusional couplings on compositional trajectories and interfacial free energies during phase separation in a quaternary Ni-Al-Cr-Re model superalloy

August 1, 2022
Author(s)
Carelyn E. Campbell, Sung-Il Baik, Zugang Mao, Qingqiang Ren, Chuan Zhang, BiCheng Zhou, Ronald D. Noebe, David N. Seidman, Fei Xue
… free energies, sigma^(gamma/gamma prime) , are (6.9 ± 1.4) mJ/m2 with all terms in D and G'', which changes to (18.9 ± 2.1) mJ/m2, (37.7 ± 3.3) mJ/m2, and (-7.5 ± 1.2) mJ/m2 when not including the off-diagonal terms in D, …

Accelerated Green's function molecular dynamics

April 16, 2022
Author(s)
Vitor R. Coluci, Socrates de Oliveira Dantas Dantas, Vinod Tewary
… matrices rather than the full Nd X Nd matrix (d = 1; 2; or 3). The eigenvalues and eigenvectors are then used …

Experiments and Exergy Analysis for a CO2 Ground-Source Heat Pump in Cooling Mode

November 1, 2021
Author(s)
Harrison M. Skye, Wei Wu
… tested in an environmental chamber per ISO standard 13256 1 for rating liquid-to-air heat pumps. The system operated in … for ELT > 25 °C. At 'Standard' conditions the COP was 4.14, the total capacity was 6690 W, the sensible capacity was … was also tested at the 'Minimum', and 'Maximum' ISO 13256-1 conditions, and five 'extended ELT' tests with ELT ranging …

Satellite Instrument Calibration for Measuring Global Climate Change

October 12, 2021
Author(s)
G Ohring, B Wielicki, R Spencer, W Emery, Raju V. Datla
… as 0.10 degrees C / decade, ozone changes as little as 1 %/decade, and variations in the sun s output as tiny as 0.1 % / decade. To address these problems and recommend … Inn and Conference Center, College Park, MD, November 12-14, 2002. Some 75 scientists, including researchers who …

X-Ray Diffraction Study of the Optimization of MgO Growth Conditions for Magnetic Tunnel Junctions

October 12, 2021
Author(s)
O Se Young, C G. Lee, Alexander J. Shapiro, William F. Egelhoff Jr., Mark D. Vaudin, Jennifer L. Klamo, J Mallett, Philip Pong
… growth, the chamber pressure needs to be reduced below 1.3 x 10-6 Pa (10-8 Torr). Pre-deposition ion milling for … in growing MgO on more complicated underlayers such as 1 Ta / 20 Au / 5 Co40Fe40B20 and 1 Ta / 20 Conetic (Ni77Fe14Cu5Mo4) / 1.5 Co40Fe40B20 (units …

Assessment of Serum Total 25 Hydroxyvitamin D Assay Commutability of Standard Reference Materials and College of American Pathologists Accuracy Based Vitamin D (ABVD) Scheme and Vitamin D External Quality Assessment Scheme (DEQAS) Materials: Vitamin D Sta

July 1, 2021
Author(s)
Johanna Camara, Stephen A. Wise, Andrew Hoofnagle, Emma L. Williams, Graham D. Carter, Julia C. Jones, Carolyn Burdette, Grace Hahm, Federica Nalin, Adam J. Kuszak, Joyce M. Merkel, Ramon Durazo-Arvizu, Pierre Lukas, E. Cavalier, Christian Popp, Christian Beckert, Jan Schultess, Glen Van Slooten, Carole Tourneur, Camille Pease, Ravi Kaul, Alfredo Villarreal, Fiona Ivison, Ralf Fischer, Jody M. van den Ouweland, Chung S. Ho, Emmett W. Law, Jean-Nicolas Simard, Renaud Gonthier, Brett Holmquist, Marcelo C. Batista, Heather Pham, Alex Bennett, Sarah Meadows, Lorna Cox, Eugene Jansen, Dilshad A. Khan, Kimberly Robyak, Michael H. Creer, Mark Kilbane, Patrick J. Twomey, James Freeman, Neil Parker, Jinyun Yuan, Robert Fitzgerald, Sohail Mushtaq, Michael W. Clarke, Norma Breen, Christine Simpson, Christopher T. Sempos
… different laboratories using 20 ligand binding assays and 14 LC-MS/MS methods. Using the test assay results for total …

Ambient-Temperature Hydrogen Storage via Vanadium(II)-Dihydrogen Complexation in a Metal-Organic Framework

April 28, 2021
Author(s)
David Jaramillo, Henry Jiang, Hayden Evans, Romit Chakraborty, Hiroyasu Furukawa, Craig Brown, Martin Head-Gordon, Jeffrey Long
… framework (MOF) V 2 Cl 2.8 (btdd) (H 2 btdd, bis(1H-1,2,3-triazolo[4,5-b],[4′,5′-i])dibenzo[1,4]dioxin), which features exposed vanadium(II) sites … neutron diffraction data, a V–D 2 (centroid) distance of 1.966(8) Å is obtained, the shortest yet reported for a MOF. …

The Character of Residential Cooktop Fires

January 8, 2021
Author(s)
Yue Hu, Jian Chen, Zhigang Wang, Ki Yong Lee, Matthew Bundy, Anthony Hamins, Marco G. Fernandez
… pan, the peak flame height and heat release rate were 1.4 m and 110 kW, respectively. Fires of this size pose a …

Effects of stretch and thermal radiation on difluoromethane/air burning velocity measurements in constant volume spherically expanding flames

July 7, 2018
Author(s)
Robert R. Burrell, Gregory T. Linteris, John L. Pagliaro
… flame propagation for equivalence ratios from 0.9 to 1.4 and difluoromethane/(21%-oxygen/79%-argon) flame propagation for equivalence ratios of 0.7 and 1.3 in a spherical, constant volume device. Experimental … results, e.g., at (400 K, 304 kPa) typically less than 1 %. …

The 2017 NIST Language Recognition Evaluation

June 26, 2018
Author(s)
Seyed Omid Sadjadi, Timothee N. Kheyrkhah, Audrey N. Tong, Craig S. Greenberg, Douglas Reynolds, Elliot Singer, Lisa Mason, Jaime Hernandez-Cordero
… focusing on differentiating closely related languages (14 in total) drawn from 5 language clusters, namely Arabic, … differences between LRE17 and LRE15 most notably including 1) release of a small development set which broadly matched … conditions. The evaluation results suggests that 1) language recognition on AfV data was, in general, more …

Order-Disorder Transitions and Superionic Conductivity in the Sodium Nido-Undeca(carba)borates

December 26, 2017
Author(s)
Wan Si NMN Tang, Mirjana NMN Dimitrievska, Vitalie Stavila, Wei Zhou, Hui Wu, A. Alec Talin, Terrence J. Udovic
… The salt compounds NaB 11 H 14 , Na-7-CB 10 H 13 , Li-7-CB 10 H 13, Na-7,8-C d2^B 9 H 12 … highly reorientationally mobile anions (> 10 10 jumps s -1 above 300 K) and cation-vacancy-rich, close-packed or … related sodium and lithium salts with similar monocharged 1-CB 9 H 10 and CB 11 H 12 close-carbaborate anions. This …
Displaying 1226 - 1250 of 1415
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