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Search Publications

NIST Authors in Bold

Displaying 12226 - 12250 of 13225

Nanomechanics of cellulose deformation reveal molecular defects that facilitate natural deconstruction

April 29, 2019
Author(s)
Peter Ciesielski, Ryan Wagner, Vivek Bharadwaj, Jason Killgore, Ashutosh Mittal, Gregg Beckham, Stephen Decker, Michael Himmel, Michael Crowley
… performance. We observed that mechanically induced defects in cellulose nanofibrils can serve as initiation sites for … We hypothesize that this behavior results from breakages in surface glucan chains that result from the formation of kink-defects in response to bending stress. We further investigate the …

A solid-state source of strongly entangled photon pairs with high brightness and indistinguishability

April 22, 2019
Author(s)
Jin Liu, Rongbin Su, Yuming Wei, Beimeng Yao, Saimon Filipe Covre da Silva, Ying Yu, Jake Iles-Smith, Kartik Srinivasan, Armando Rastelli, Juntao Li, Xuehua Wang
… entangled photon pairs has been being a long-sought goal in modern quan-tum communication and computation. To date, … thus relegated to a regime of low pair-generation rates. In contrast, semiconductor quantum dots can gen-erate … by deterministically embedding GaAs quantum dots in broad-band photonic nanostructures that enable …

Analytical Modeling of White Space Utilization for a Dynamic Spectrum Access System

April 15, 2019
Author(s)
Robert Hagwood, Anirudha Sahoo, Timothy Hall
… Spectrum Access (DSA) promises to be a shared spectrum technology that can alleviate the artificial spectrum crunch … of spectrum. There have been many studies on DSA systems in the literature. However, most of them are analyzed using … than analytical modeling. Analytical models are useful in evaluating performance of such systems quickly and easily. …

Effective Attenuation Length Dependence on Photoelectron Kinetic Energy for Gold from 1 keV to 10 keV: Role of Island Growth in Overlayer Experiments

April 3, 2019
Author(s)
Cedric J. Powell, Aleksander Jablonski
… We utilized the National Institute of Standards and Technology Database for the Simulation of Electron Spectra … of Cu and Au photoelectron lines that were observed in the experiments. These results showed that growth of the … for Gold from 1 keV to 10 keV: Role of Island Growth in Overlayer Experiments …

Channel Characterization and Delay Optimization for Industrial Wireless Control Systems

March 4, 2019
Author(s)
Xiaolin Jiang, Zhibo Pang, Rick Candell, Dacfey Dzung, Michele Luvisotto, Carlo Fischione
… Wireless communication is gaining popularity in industry for its simple deployment, mobility and low cost. … to the difficulty to model accurately the wireless channel in various industrial sites. Based on the comprehensive … results from the National Institute of Standards and Technology at 2.245 GHz and 5.4 GHz, we quantify the …

Modeling Community Resilience: Update on the Center for Risk-Based Community Resilience Planning and the Computational Environment IN-CORE

November 15, 2018
Author(s)
John W. van de Lindt, Bruce Ellingwood, Therese P. McAllister, Paolo Gardoni, Daniel Cox, Walter G. Peacock, Harvey Cutler, Maria Dillard, Jong Lee, Lori Peek, Judith Mitrani-Reiser
… for, absorb, and recover rapidly from a hazard event. In 2015, the U.S. National Institute of Standards and Technology (NIST) funded the Center for Risk-Based Community … Networked Community Resilience Modeling Environment (IN-CORE), scheduled to be released at the end of 2019 as an …

Performance Metrics and Test Methods for Robotic Hands (Draft)

October 31, 2018
Author(s)
Joseph A. Falco, Karl Van Wyk, Elena R. Messina
… the manipulation thrust, there has been a recent increase in the development of robotic hands. Inspired by nature, … and characteristics under a unified framework. In addition to knowledge of basic hand characteristics such … valuable insight into not only the raw traits of the technology, but also their task and function-level …

Co-Operation in Publicly Funded Reference Material Production Meeting Report

October 12, 2018
Author(s)
Steven J. Choquette, Hakan Emteborg, Doris florian, Stephen Ellison, Lindsay Mackay, Pearse McCarron
… 2018. It was a follow-up of a similar meeting held in 2009. The objective of the meeting was to exchange … and to identify areas which may be of a lower importance in the future for a specific RM-producer. The benefit of … United Kingdom, the National Institute for Standards and Technology (NIST), USA; the National Measurement Institute of …

Visualizing Structural Transformation and Guest Binding in a Flexible Metal-Organic Framework under High Pressure and Room Temperature

October 1, 2018
Author(s)
Hui Yang, Feng Guo, Prem Lama, Gaurav Verma, Wen-Yang Gao, Hui Wu, Leonard J. Barbour, Wei Zhou, Jian Zhang, Briana Aguila, Shengqian Ma
… molecules on the framework structures upon gas sorption in porous materials is highly desirable for the development … as induced by the CO 2 adsorption/desorption through in situ single crystal X-ray diffraction experiments. The … room temperature have also been identified via combined in situ single crystal X-ray diffraction and powder X-ray …

Superconducting optoelectronic networks V: networks and scaling

May 17, 2018
Author(s)
Jeffrey M. Shainline, Jeffrey T. Chiles, Sonia M. Buckley, Adam N. McCaughan, Richard P. Mirin, Sae Woo Nam
Networks of superconducting optoelectronic neurons are investigated for their near-term technological potential and long-term physical limitations. Networks with short average path length, high clustering coefficient, and power-law degree distribution are

Characterization of Stove Top Cooking Oil Fires

March 12, 2018
Author(s)
Anthony P. Hamins, Sung C. Kim, Daniel Madrzykowski
… were conducted by the National Institute of Standards and Technology (NIST) to examine the hazard associated with … were conducted on a free-standing stove situated in the open. The experiments were based on scenarios outlined in the UL 300A draft standard for fire suppression apparatus. …

Increasing Public Safety Broadband Network Resiliency Through Traffic Control

February 1, 2018
Author(s)
Richard A. Rouil, Wesley D. Garey, Camillo A. Gentile, Nada T. Golmie
… safety with enhanced capabilities and access to broadband technology. In the United States, the First Responder Network Authority … maximizing network capacity, i.e. the aggregate data rate, in order to increase revenue. In public safety networks, …

Quantitative Analysis of trace levels of surface contamination by X-ray photoelectron spectroscopy Part II: Systematic uncertainties and absolute quantification

December 1, 2017
Author(s)
Nadir S. Faradzhev, Shannon B. Hill, Cedric J. Powell
… uncertainties for these measurements is formulated in terms of the needs of extreme ultraviolet (EUV) … spectra with the National Institute of Standards and Technology Database for the Simulation of Electron Spectra … converting XPS detection limits for an elemental impurity in an elemental matrix to the corresponding detection limits …

Clustering and Percolation in Suspensions of Carbon Black

November 22, 2017
Author(s)
Jeffrey J Richards, Julie Beth Hipp, John K Riley, Norman J. Wagner, Paul Butler
… electric conductivity as well as mechanical percolation in the form of a yield stress. Despite their critical role in determining system performance in the form of a yield stress. Despite their critical role in … Clustering and Percolation in Suspensions of Carbon Black …

Characterization for an Industrial Wireless Network in a Gas Sensing Scenario

November 8, 2017
Author(s)
Mohamed Hany, Rick Candell
… Employing wireless communications in gas sensing and air quality monitoring is extremely essential in many industrial scenarios where wired networks cannot … applications. At the National Institute of Standards and Technology (NIST), we have developed a wireless network …

A Boltzmann Constant Determination Based on Johnson Noise Thermometry

August 10, 2017
Author(s)
Nathan E. Flowers-Jacobs, Alessio Pollarolo, Kevin J. Coakley, Anna E. Fox, Horst Rogalla, Weston L. Tew, Samuel P. Benz
… (JNT) system at the National Institute of Standards and Technology (NIST), USA. This system is different from prior … at the National Institute of Metrology (NIM), China. As in all three previous determinations, the main contribution … to the combined uncertainty is the statistical uncertainty in the noise measurement, which is mitigated by accumulating …

CYBER-PHYSICAL SYSTEM DEVELOPMENT ENVIRONMENT FOR ENERGY APPLICATIONS

June 28, 2017
Author(s)
Thomas P. Roth, Yuyin Song, Martin J. Burns, Himanshu Neema, William Emfinger, Janos Sztipanovits
… enables new functionality and quality of life improvements in critical infrastructures such as smart cities, intelligent … approach to study CPS uses both simulations and hardware-in-theloop (HIL) to test the physical dynamics of hardware in … HIL simulation. The National Institute of Standards and Technology (NIST) is working on the development of a …

Wind Speeds for the Estimation of World Trade Center Towers' Response

February 19, 2017
Author(s)
William P. Fritz, Fahim H. Sadek, Emil Simiu
… investigation by the National Institute of Standards and Technology determined that those differences were mainly due … between the respective estimates of the wind speeds. In this paper we present a procedure for estimating extreme … treatment, as well as details of the estimates themselves, in a manner intended to be thorough, clear, and transparent. …

Online Airtightness Calculator for the US, Canada and China

December 15, 2016
Author(s)
Som Shrestha, Lisa Ng, Steven Emmerich, Diana Hun, Laverne Dalgleish
… Laboratory, the National Institute of Standards and Technology, the Air Barrier Association of America, and the … that estimates the potential energy and cost savings in major US, Canadian, and Chinese cities from, improvements in airtightness. This tool will have a user-friendly …

On-Chip Temperature Distribution for Josephson Voltage Standards

November 22, 2016
Author(s)
Anna E. Fox, Evan B. Golden, Paul D. Dresselhaus, Samuel P. Benz
… for the National Institute of Standards and technology Josephson voltage standard has been performed by … junction critical current measurement. Temperature rise in devices with on-chip termination resistors were compared … and that the interface layer did not affect heat transport in the substrate. …
Displaying 12226 - 12250 of 13225
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