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Search Publications

NIST Authors in Bold

Displaying 1476 - 1500 of 73927

Compensation of Electrical Current Drift in Human-Robot Collision

November 5, 2022
Author(s)
Vinh Nguyen, Jennifer Case
Human-robot collaborative systems are being increasingly adopted in manufacturing environments due to their application flexibility, adaptability, and cost-effectiveness. These systems typically use electrical current sensors to measure joint torque in

ORGANIZATION OF SCIENTIFIC AREA COMMITTEES (OSAC) FOR FORENSIC SCIENCE

November 4, 2022
Author(s)
John Jones, Allison Getz, Donna J. Sirk
The National Institute of Standards and Technology (NIST) established the Organization of Scientific Area Committees (OSAC) for Forensic Science in 2014 to address a lack of discipline-specific forensic science standards. OSAC's mission is to strengthen

Evaluating Inter-Laboratory Comparison Data

November 3, 2022
Author(s)
Enrico Frahm, John D. Wright
The primary purpose of inter-laboratory comparisons is to demonstrate that the uncertainty specifications of the calibration measurement capabilities of the participating laboratories are correct. The most common criterion for assessing a participating

GRID-VIDEO MEASUREMENT METHOD FOR A-UGV'S SMALL OBSTACLE AVOIDANCE PERFORMANCE

November 3, 2022
Author(s)
Soocheol Yoon, Roger V. Bostelman, Ann Virts
With the advancement of factory logistics into the autonomous era comes the need to validate the safety and performance characteristics of Autonomous-Unmanned Ground Vehicles (A-UGVs) working in these application spaces ASTM Committee F45 has been

Quadrature Squeezing And Temperature Estimation From The Fock Distribution

November 3, 2022
Author(s)
Italo Pereira Bezerra, Hilma Vasconcelos, Scott Glancy
We present a method to estimate the amount of squeezing and temperature of a single-mode Gaussian harmonic oscillator state based on the weighted least squares estimator applied to measured Fock state populations. Squeezing and temperature, or equivalently

Aluminum Formate, Al(HCOO)3: An Earth-Abundant, Scalable, and Highly Selective Material for CO2 Capture

November 2, 2022
Author(s)
Hayden Evans, Dinesh Mullangi, Zeyu Deng, Yuxiang Wang, Shing B. Peh, Fengxia Wei, John Wang, Craig Brown, Dan Zhao, Pieremanuele Canepa, Anthony K. Cheetham
A combination of gas adsorption and gas breakthrough measurements show that the metal-organic framework, Al(HCOO) 3 (ALF), which can be made inexpensively from commodity chemicals, exhibits excellent CO 2 adsorption capacities and outstanding CO 2 /N 2

Cryptographic Standards in a Post-Quantum Era

November 2, 2022
Author(s)
Dustin Moody, Angela Robinson
If large-scale quantum computers are ever built, they will compromise the security of many commonly used cryptographic algorithms. In response, the National Institute of Standards and Technology is in the process of standardizing new cryptographic

Prestress in Composite Polymer Gels as a Model for Articular Cartilage

November 2, 2022
Author(s)
Alexandros Chremos, Jack F. Douglas, Peter Basser, Ferenc Horkay
Articular cartilage is a composite gel-like material found in animal and human joints and exhibits a unique load-bearing performance that has been challenging to reproduce in synthetic materials and in molecular dynamics simulations. We investigate a

Scalable Quantum Logic Spectroscopy

November 2, 2022
Author(s)
Kaifeng Cui, Jose Valencia, Kevin Boyce, Ethan Clements, David Leibrandt, David Hume
In quantum logic spectroscopy (QLS), one species of trapped ion is used as a sensor to detect the state of an otherwise inaccessible ion species. This extends precision measurements to a broader class of atomic and molecular systems for applications like

A Round-Robin Approach Provides a Detailed Assessment of Biomolecular Small-Angle Scattering Data Reproducibility and Yields Consensus Curves for Benchmarking.

November 1, 2022
Author(s)
Jill Trewhella, Patrice Vachette, Jan Bierma, Clement Blanchet, Emre Brookes, Srinivas Chakravarthy, Leonie Chatzimagas, Thomas Cleveland, Nathan Cowieson, Ben Crossett, Anthony P. Duff, Daniel Franke, Frank Gabel, Richard E. Gillilan, Melissa Graewert, Alexander Grishaev, Jules M. Guss, Michal Hammel, Jesse Hopkins, Qingqui Huang, Jochen S. Hub, Gregory L. Hura, Thomas C. Irving, Cy M. Jeffries, Cheol Jeong, Nigel Kirby, Susan N. Krueger, Anne Martel, Tsutomu Matsui, Na Li, Javier Perez, Lionel Porcar, Thierry Prange, Ivan Rajkovic, Mattia Rocco, Daniel J. Rosenberg, Timothy M. Ryan, Soenke Seifert, Hiroshi Sekiguchi, Dmitri Svergun, Susana C. Marujo Teixeira, Aurelien Thureau, Thomas M. Weiss, Andrew Whitten, Kathleen Wood, Xiaobing Zuo
Small-Angle Scattering (SAS) data from 5 candidate proteins (RNaseA, lysozyme, xylanase, urate oxidase and xylose isomerase) were measured on 12 Small-Angle X-ray Scattering (SAXS) and 4 Small-Angle Neutron Scattering (SANS) instruments. In total, more

An Interlaboratory Study of Potential Visible Protein-Like Particle Standards

November 1, 2022
Author(s)
Srivalli Telikepalli, Michael J. Carrier, Dean C. Ripple
Visible protein-like particle standards can improve visual inspection and/or appearance testing practices used in the biotechnology industry. It will improve assay performance resulting in better alignment and more standardized training among different

Enhanced Atomic Precision Fabrication by Adsorption of Phosphine into Engineered Dangling Bonds on H-Si Using STM and DFT

November 1, 2022
Author(s)
Jonathan Wyrick, Xiqiao Wang, Pradeep Namboodiri, Ranjit Kashid, Fan Fei, Joseph Fox, Richard M. Silver
Doping of Si using the scanning probe technique of hydrogen depassivation lithography has been shown to enable placing and positioning small numbers of P atoms with nanometer accuracy. Several groups have now used this capability to build devices that

Frustrated Magnetic Interactions and Quenched Spin Fluctuations in CrAs

November 1, 2022
Author(s)
Yayuan Qin, Yao Shen, Yiqing Hao, Hongliang Wo, Shoudong Shen, Russell A. Ewings, Yang Zhao, Leland Harriger, Jeffrey Lynn, Jun Zhao
The discovery of pressure-induced superconductivity in helimagnets (CrAs, MnP) has attracted significant interest in understanding the relationship between complex magnetism and unconventional superconductivity. However, the nature of the magnetism and

Proposed NIST Neutron Source User Facility

November 1, 2022
Author(s)
Jeremy Cook, Hubert King, Charles F. Majkrzak, Dagistan Sahin, Joy Shen, Osman Celikten, David Diamond, Robert E. Williams, Thomas Newton
ANS summary format (no abstract)

Simplified algorithms for adaptive experiment design in parameter estimation

November 1, 2022
Author(s)
Robert D. McMichael, Sean Blakley
In experiments to estimate parameters of a parametric model, Bayesian experiment design allows measurement settings to be chosen based on utility, i.e. the predicted improvement of parameter distributions due to modeled measurement results. In this paper

Visualization of multi-orientational ordering within a single domain of donor non-fullerene acceptor blends

November 1, 2022
Author(s)
Eliot Gann, Christopher McNeill, Urvashi Bothra, Pramiti Hui, Wen Liang Tanc, Hariprasad Venugopal, Chandramouli Subramaniam, Amelia C.Y. Liu, Dinesh Kabra
We have studied the tailored micron-scale phase-separated bulk heterojunction (BHJ) morphology of the well-known polymer (PTB7-Th) and a narrow bandgap acceptor 2,2'-[[4,4,9,9-Tetrakis(4-hexylphenyl)-4,9-dihydro-s-indaceno [1,2-b:5,6-b']dithiophene-2,7

Vitamin E does not Disturb Polyunsaturated Fatty Acid Lipid Domains

November 1, 2022
Author(s)
Mitchell DiPasquale, Michael H. Nguyen, Stuart R. Castillo, Isabelle J. Dib, Elizabeth Kelley, Drew Marquardt
The antioxidant function of vitamin E in biomembranes remains a prominent topic of discussion. As its limitations as an antioxidant persist and novel functions are discovered, our understanding of the role of vitamin E becomes increasingly enigmatic. As a

Convergent close-coupling calculations of electron scattering on HeH+

October 31, 2022
Author(s)
Barry I. Schneider
We use the molecular convergent close-coupling (MCCC) method to perform calculations of 10–1000 eV electron scattering on the ground state of HeH+. Cross sections are presented for excitation of the n = 2−3 singlet and triplet states (where n is the united
Displaying 1476 - 1500 of 73927