U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 351 - 370 of 370

Reinforcement of a Self-Setting Calcium Phosphate Cement with Different Fibers

October 1, 2000
Author(s)
Hockin D. Xu, F Eichmiller, Anthony A. Giuseppetti
… were mixed with CPC paste and placed into molds of 3 x 4 x 25 mm. A flexural test was used to fracture the set … aramid, (59 11) for carbon, (29 8) for E-glass, and (24 4) for polyglactin, with 5.7% volume fraction and 75 mm fiber … fibers, the ultimate strength was (24 3) for 3 mm fibers, (36 13) for 8 mm fibers, (48 14) for 25 mm fibers, and (62 16) …

Absolute Intensities for the O 2 1.27 ym Continuum Absorption

December 1, 1999
Author(s)
B Mate, C Lugez, Gerald T. Fraser, Walter J. Lafferty
… for S O2-O2 and S O2-N2 . At 296 K we find S O2-O2 = 4.847(22) 10 -43 cm -2 (molecule/cm 3 ) -2 [3.499(16) x 10 -4 cm -2 amagat -2 ] and S O2-N2 = 0.941(50) 10 -43 cm -2 (molecule/cm 3 ) -2 [0.679(36) x 10 -4 cm -2 amagat -2 ]. Here and elsewhere, Type A …

Impact of screening for HPV-positive oropharyngeal cancers: A microsimulation-based modeling study

February 6, 2025
Author(s)
Rebecca Landy, Gregory Haber, Barry Graubard, Carole Fakhry, Nicole Campos, Emily Burger, Li Cheung, Hormuzd Katki, Maura Gillison, Anil Chaturvedi
… Assuming very fast progression across cancer stages, 4%, 20%, 31%, and 60% of these cancers would be detected by … vs. 50.6%). Cancer mortality would also be reduced by 36.2%, with a gain of 106,000 life-years. Annual screening … 1,118 per additional cancer treated by single-modality, 4,740 per death prevented, and 520 per life-year gained. …

Concordant inter-laboratory derived concentrations of ceramides in human plasma reference materials via authentic standards

October 3, 2024
Author(s)
Tracey Schock, Christina Jones, Federico Torta, Nils Hoffmann, Bo Burla, Irina Alecu, Makoto Arita, Takeshi Bamba, Steffany A.L. Bennett, Justine BERTRAND-MICHEL, Britta Brugger, Monica Molina, Maria Dolores Camacho Munoz, Antonio Checa, Michael Chen, Michelle Cinel, Benoit COLSCH, Cristina Coman, Bebiana Da Costa Sousa, Alex Dickens, Maria Maria, Finnur Freyr Eiriksson, Hector Gallart-Ayala, Mohan Ghorasaini, Martin Giera, Xue Guan, Mark Haid, Thomas Hankemeier, Amy Harms, Marcus Horing, Michal Holcapek, Thorsten Hornemann, Chunxiu Hu, Andreas Hulsmeier, Julijana Ivanisevic, Harald Kofeler, Sin Man Lam, Jong Cheol Lee, Gerhard Liebisch, Andrea F Lopez-Clavijo, Malena Manzi, Peter Meikle, Maria Monge, Sneha Muralidharan, Anna Nicolaou, Valerie O'Donnell, Matej Oresic, Arvind Ramanathan, Daisuke Saigusa, Heidi Schwartz-Zimmermann, Guanghou Shui, Masatomo Takahashi, Margret Thorsteinsdottir, Anthony Tournadre, Hiroshi Tsugawa, Victoria Tyrrell, Grace van der Gugten, Michael Wakelam, Craig Wheelock, Denise Wolrab, Guowang Xu, John Bowden, Kim Ekroos, Robert Ahrends, Markus Wenk
… values are 0.1206 ± 0.0038 µmol/L for Cer 18:1;O2/16:0 (n=36), 0.0412± 0.0012 µmol/L for Cer 18:1;O2/18:0 (n=31), … Our results are the most precise (intra-laboratory CV ≤ 4.5%) and concordant (inter-laboratory CV < 19%) …

Study of Isochoric Specific Heat Capacity Measurements for Liquid Isobutane

October 12, 2021
Author(s)
Hiroyuki Miyamoto, Hiroshi Kitajima, Noboru Kagawa, Joe W. Magee, Seizo Tsuruno, Koichi Watanabe
… experimental data are estimated to be plus or minus} 36 mK for the temperature, plus or minus} 0.03 % for the … K ¿ 417 K and pressures 3 MPa ¿ 29 MPa (Figure 3). Figure 4 shows comparisons of the 119 points experimental data with …

Structural Heart Abnormalities are Prevalent on the 12-lead ECG among Volunteer Firefighters

April 1, 2025
Author(s)
Alexander Bae, Chi-Ju Lai, Yichen Yu, Nicole Krupa, David Hostler, Wai Cheong Tam, Mary Carey, Wendy Brunner, Dillon Dzikowicz
… visited a firefighter health screening program at least 4 times from 2011-2019. We extracted the interval … 21.5% (n=278) of Heart Rate, 0.39% (n=5) T-axis, 26.4% (n=342) QRS-axis, 40.0% (n=518) QRS duration, 5.40% (n=70) … conduction disease was the most prevalent (n=204, 36.8%), followed by vertical axis (n=70, 12.6%), right bundle …

Detectability of Slow Crack Growth in Bridge Seels by Acoustic Emission

December 1, 1998
Author(s)
Marvin A. Hamstad, Joseph D. McColskey
… technology. Fatigue crack-growth rates of nominally 1x10 -4 mm/cycle (4x10 -6 in./cycle) and 1x10 -3 mm/cycle (4x10-5 … [21 x 18 in.])are presented. These studies on steel 6.4 mm (0.25 in.) thick demonstrate the significance of … located at the crack tip to a sensor approximately 102 mm (4 in.) away. These supporting experiments also demonstrate …

Propagation of Detector-Based Photometric and Color Scales Using a Spectrally Tunable LED-Source

May 1, 2002
Author(s)
George P. Eppeldauer, Steven W. Brown
… detectors were calibrated against a cryogenic radiometer [4]. From the measured spectral irradiance responsivities, the … independent control of the current feeding each set of 4 LED's. The effect of LED seasoning for luminance and … Irradiance Detectors from 0.2 m to 12 m, Metrologia, Vol. 36, p. 141-146, 1999.[4] To be published.[5] Steven W. Brown, …

Characterization of the Alloy-Solution Interface

October 16, 2008
Author(s)
H J. Mueller
… to an artificial saliva of NaCl, KCl, CaCl 2 , NaH 2 PO 4 , and urea, at component concentrations of (6.8, 5.4, 5.4, 5.0, 16.7) mmol/L, respectively, (pH = 4.8). For FT-IR and …
Displaying 351 - 370 of 370
Was this page helpful?