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NIST Authors in Bold

Displaying 2151 - 2175 of 2522

Improving signal-to-noise ratio for the forensic analysis of glass using micro x-ray fluorescence spectrometry

August 1, 2020

Author(s)

Ruthmara Corzo, Eric B. Steel

… range (Ti, Mn, Fe) showed the greatest improvement (> 20%) when using filters during analyses. …

Assembly and annotation of an Ashkenazi human reference genome

June 2, 2020

Author(s)

Justin M. Zook, Justin M. Wagner, Nathanael D. Olson, Steven L. Salzberg, Alaina Shumate, Aleksey V. Zimin, Daniela Puiu, Mihaela Pertea, Marc Salit

… compared to 2,937,639,212 in GRCh38. Annotation identified 20,157 protein-coding genes, of which 19,563 are > 99% …

Behavior and Limit States of Long-Span Composite Floor Beams with Simple Shear Connections subject to Compartment Fires: Experimental Evaluation

March 24, 2020

Author(s)

Lisa Y. Choe, Selvarajah Ramesh, William L. Grosshandler, Matthew S. Hoehler, Mina S. Seif, John L. Gross, Matthew F. Bundy

… near midspan (approximately a ratio of span length over 20) without collapse under fire loading. However, various …

The FeoC [4Fe4S] Cluster Is Redox-Active and Rapidly Oxygen-Sensitive

November 12, 2019

Author(s)

Aaron T. Smith, Richard O. Linkous, Nathan Max, Alexandrea E. Sestok, Veronika Szalai, Kelly N. Chacon

… cluster that is rapidly oxygen-sensitive (t½ ≈ 20 s), similar to the [Fe-S] cluster in the fumarate and …

A Multi-Laboratory Investigation of Drug Background Levels

September 9, 2019

Author(s)

Edward R. Sisco, Marcela N. Najarro

… surfaces in forensic laboratories. Over 700 samples from 20 laboratories were collected, extracted, and analyzed …

Cell Image Segmentation using Generative Adversarial Networks, Transfer Learning, and Augmentations

June 17, 2019

Author(s)

Michael P. Majurski, Petru S. Manescu, Sarala Padi, Nicholas J. Schaub, Nathan A. Hotaling, Carl Simon Jr., Peter Bajcsy

… counts, the results show accuracy improvements up to 20 % by the best approach in comparison to the accuracy …

Numerically-Predicted Burning Velocities of C1 and C2 Hydrofluorocarbon Refrigerant Flames with Air

July 11, 2018

Author(s)

Gregory T. Linteris, Valeri I. Babushok

… The NIST hydrofluorocarbon HFC mechanism was developed 20 years ago to describe hydrocarbon-air flames with added …

Characterizing Gas-Collection Volumes with Acoustic and Microwave Resonances

March 27, 2018

Author(s)

Jodie Gail Pope, Keith A. Gillis, Michael R. Moldover, J B. Mehl, Eric Harman

… a 1.8 m3, nearly-spherical, steel shell at pressures up to 7 MPa for use as a gas flow standard. For pressure, volume, … raising the nitrogen pressure in the shell from 0.1 MPa to 7.0 MPa in 45 minutes, the top of the shell was 20 C warmer than the bottom of the shell. Despite this large …

Flame Spread Along Fences Near a Structure in a Wind Field

October 20, 2017

Author(s)

Kathryn M. Butler, Erik L. Johnsson, Marco G. Fernandez, Mariusz Zarzecki, Eric Auth

… spot fires carried the fire to the structure wall within 7 min. In the exceptional case, little spotting was observed, and the fire took over 20 min to reach the wall. …

Intrinsic conductivity, particle shape, and the Coulter particle counting method

September 4, 2017

Author(s)

Edward J. Garboczi

… shaped particles can give erroneous volumes by 20% or more, using rectangular prism-shaped particles. Using …

Cements in the 21st Century: Challenges, Perspectives, and Opportunities

April 21, 2017

Author(s)

Joseph J. Biernacki, Jeffrey W. Bullard, Gaurav Sant, Nemkumar Banthia, Frederik P. Glasser, Scott Jones, Tyler Ley, Richard A Livingston, Luc Nicoleau, Jan Olek, Florence Sanchez, Rouzbeh Shahsavari, Paul E. Stutzman, Sobolev Konstantin, Tracie Prater

In a book published in 1906, Richard Meade outlined the history of portland cement up to that point1. Since then there has been great progress in portland cement-based construction materials technologies brought about by advances in the materials science

Measurements and Simulations of Low Strain Rate Non-Premixed Methane Flame Extinction

February 19, 2017

Author(s)

Anthony Hamins, Matthew Bundy, C B. Oh

… fuel stream were performed for global strain rates from 7 s-1 to 50 s-1. The results confirmed the turning point … of 1375 ( 75) K was measured for a global strain rate of 20 s-1 for conditions when the flame was very near extinction …

Microgravity Superagglomerates Produced by Silane and Acetylene

February 19, 2017

Author(s)

Matthew Bundy, George Mulholland, Samuel Manzello, Jiann C. Yang, J H. Scott

A study of acetylene and silane diffusion flames was performed in normal gravity (1-g) and microgravity ([mu]-g) to determine the evolution of soot and silica agglomerates. The objective of this study was to understand the process of gas phase

The Performance of Wood and Tile Roofing Assemblies Exposed to Continuous Firebrand Assault

January 1, 2017

Author(s)

Samuel L. Manzello, Sayaka Suzuki, Daisaku Nii

… the USA. The duration of the firebrand flux was fixed at 20 minutes, and the wind speed was varied from 6 m/s to 9 …

Diesel Adsorption to PVC and Iron from Contaminated Water Flow and Flushing Tests

June 14, 2016

Author(s)

Mark A. Kedzierski

… developed. The models predict flushing times to within 7 h and predict the influence of pipe surface on …

Considerations of Environmentally-Relevant Test Conditions for Improved Evaluation of Ecological Hazards of Engineered Nanomaterials

June 8, 2016

Author(s)

Patricia Holden, Jorge Gardea-Torresdey, Frederick Klaessig, Ronald Turco, Monika Mortimer, Kerstin Hund-Rinke, David Avery, Damia Barcelo, Renata Behra, Yoram Cohen, Laurence Deydier-Stephan, Barbara Harthorn, Danail Hristozov, John Johnston, Agnes Kane, Larry Kaputska, Arturo Keller, Hunter Lenihan, Wess Lovell, Catherine Murphy, Roger Nisbet, Elijah Petersen, Martin Scheringer, Monita Sharma, David Speed, Yasir Sultan, Jason White, Eva Wong, Baoshan Xing, Meghan Steele Horan, Hilary Godwin, Andre Nel

… of Nanotechnology (UC CEIN)-sponsored workshop on March 19-20, 2015. Herein, we report the results. Although not by …

Ion trap mobility spectrometry nuisance alarm threshold analysis for illicit narcotics based on environmental background and a ROC-curve approach

May 18, 2016

Author(s)

Thomas Forbes, Marcela N. Najarro

… limits in the tens of nanograms with poor specificity (FPR 20%) were observed for methamphetamine and heroin under …

Laser-induced particle adsorption on atomically thin MoS2

May 3, 2016

Author(s)

Bien Cuong Tran Khac, Ki-Joon Jeon, Seung Tae Choi, Yong Soo Kim, Frank W. DelRio, Koo-Hyun Chung

… thin MoS2 as a function of laser powers from 0.5 mW to 20 mW and number of layers from 1 to 3. It was found that …

CONTAM RESULTS EXPORT TOOL

March 9, 2016

Author(s)

Brian Polidoro, Lisa Ng, William Stuart Dols

… the NIST Multizone Modeling Website. Revisions to Section 7.2 posted 4/20/21. …

Measuring laser power as a force: A new paradigm to accurately monitor optical power during laser-based machining operations

February 14, 2016

Author(s)

Paul A. Williams, Brian J. Simonds, Jeffrey W. Sowards, Joshua A. Hadler

… CW laser powers up to 92 kW in the laboratory and up to 20 kW in an experimental laser welding booth. We will …

Methodology to Analyze Wind Pressure Data on Components and Cladding of Low-Rise Buildings

December 29, 2015

Author(s)

Dat Duthinh, Joseph A. Main

… from the American Society of Civil Engineers, ASCE 7-10. Results for two low-rise buildings for one terrain … ASCE 7-10, components and cladding, gable roofs, low-rise …

Comparison of J-integral from single specimen SE(T) tests on API-5L X100 line pipe steel

June 21, 2015

Author(s)

Timothy S. Weeks, David Read

… measurement techniques with local strain capacity up to 20 % will be needed to more accurately quantify the …

The impact of current CH4 and N2O atmospheric loss process uncertainties on calculated ozone abundances and trends

May 29, 2015

Author(s)

Vladimir L. Orkin, Eric L. Fleming, Christian George, Dwayne E. Heard, Charles H. Jackman, Michael J. Kurylo , Abdelwahid Mellouki , J B. Burkholder

… range in present day stratospheric odd nitrogen (±20-25%) and global total ozone (±1.5-2.5%). Uncertainty in …

Real time assessment of a new hydrolytically degradable and photo-clickable hydrogel for cartilage tissue engineering

March 28, 2015

Author(s)

Alexander J. Neumann, Timothy P. Quinn, Stephanie J. Bryant

… Mw 20 000 8-arm PEG was functionalized with ε-Caprolactone …

Quantification of Cells with Specific Phenotypes I: Determination of CD4+ Cell Count per mL in Reconstituted Lyophilized Human PBMC Pre-labelled with Anti-CD4 FITC Antibody

March 10, 2015

Author(s)

Richard Stebbings, Lili Wang, Janet Sutherland, Martin Kammel, Adolfas Gaigalas, M. John, B. Roemer, M. Kuhne, R. J. Schneider, M. Braun, N. Leclere, D. Dikshit, Fatima Abbasi, Gerald Marti, P. Porcedda, M. Sassi, L. Revel, S. K. Kim, D. Marshall, L. Whitby, Jing Wang, V. Ost, M. Vonski, Joerg Neukammer

… of 300.4 & 302.9 CD4+ cells per µL for a 1 in 5 and a 1 in 20 dilution, respectively. Greater than 90% of participant … of the calibration beads, amounting to an uncertainty of 7.3%. Variation due to preparative steps equated to an …

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