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Search Publications

NIST Authors in Bold

Displaying 18251 - 18275 of 73697

Measuring the Resiliency of Cellular Base Station Deployments

March 11, 2015
Author(s)
David W. Griffith, Richard A. Rouil, Antonio Izquierdo Manzanares, Nada T. Golmie
The National Public Safety Telecommunications Council (NPSTC) has defined Resiliency as the ability of a network to withstand the loss of assets and to recover quickly from such losses. How to measure the resiliency of a base station deployment is an

Reference correlations for the viscosity and thermal conductivity of fluids over extended range of conditions: n-hexane in the vapor, liquid, and supercritical regions

March 11, 2015
Author(s)
Richard A. Perkins, Marcia L. Huber, Marc J. Assael, Efthimia K. Mihailidou, Sofia K. Mylona, Evita J. Sykioti
This article summarizes the correlation procedures developed for IUPAC Project 2012-040-1-100 (Reference correlations for the thermal conductivity and viscosity of fluids over extended range of conditions (vapor, liquid and supercritical region)). This

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
A surface-labelled lyophilised lymphocyte (sLL) preparation has been developed using human peripheral blood mononuclear cells (PBMC) pre-labelled with a fluorescein isothiocyanate (FITC) conjugated anti-CD4 monoclonal antibody. The sLL preparation is

An Overview of the NTIA/NIST Spectrum Monitoring Pilot Program

March 9, 2015
Author(s)
Michael Cotton, Michael R. Souryal, Mudumbai Ranganathan, Jeff Wepman, Julie Kub, Steve Engelking, Yeh Lo, Heather Ottke, Raian Kaiser, Douglas Anderson
This paper provides an overview of a Spectrum Monitoring Pilot Program within the U.S. Department of Commerce. It provides background, motivation, goals, accomplishments, and plans for future work. We describe the development of a federated Measured

Obtaining a Trapezoidal Distribution

March 9, 2015
Author(s)
James F. Lawrence, Raghu N. Kacker, Ruediger Kessel
Given a most believed value for a quantity together with upper and lower possible deviations from that value, a rectangular distribution might be used to represent state-of-knowledge about the quantity. If the deviations are themselves known by probability

Making digital phantoms with spectral and spatial light modulators for quantitative applications of hyperspectral optical medical imaging devices

March 6, 2015
Author(s)
Bonghwan Chon, fuyuki Tokumasu, Ji Youn Lee, David W. Allen, Joseph P. Rice, Jeeseong C. Hwang
We present a procedure to generate digital phantoms with a hyperspectral image projector (HIP) consisting of two liquid crystal on silicon (LCoS) spatial light modulators (SLMs). The digital phantoms are 3D image data cubes of the spatial distribution of

Dual-microcavity narrow-linewidth Brillouin laser

March 5, 2015
Author(s)
William Loh, Adam A. Green, Frederick N. Baynes, Daniel C. Cole, Franklyn J. Quinlan, Hansuek Lee, Kerry J. Vahala, Scott A. Diddams
The tunable narrow-linewidth laser is a revolutionary metrology tool that is critical in precision spectroscopy and the determination of fundamental physical constants, displacement measurements at the 10 -20 level, and the development of the most advanced

International Interlaboratory Study Comparing Single Organism 16S rRNA Sequencing Data: Going Beyond Consensus Sequence Comparisons

March 5, 2015
Author(s)
Nathanael D. Olson, Justin M. Zook, Steven P. Lund, Fabiola Rojas-Cornejo, Jim Huggett, Jayne B. Morrow
The Consultative Committee for Amount of Substance established a working group to advance the metrology of microbial identification and quantification. This study represents the initial step towards international comparability and measurement assurance for

Invar-like Behavior of Antiperovskite Mn 3+x Ni 1-x N Compounds

March 5, 2015
Author(s)
Sihao Deng, Ying Sun, Hui Wu, Qingzhen Huang, Jun Yan, Kewen Shi, Muhammad Imran Malik, Huiqing Lu, Lei Wang, Rongjin Huang, Laifeng Li, Cong Wang
The antiperovskite Mn 3+xNi 1-xN compounds have been synthesized and characterized by a variety of experimental techniques. After Mn doping at Ni site, both ferromagnetic characteristics and Invar-like effect were observed in the antiferromagnetic host

Secondary standards for 223Ra revised

March 5, 2015
Author(s)
Denis E. Bergeron, Jeffrey T. Cessna, Brian E. Zimmerman
Dose calibrator dial settings reported by NIST in 2010 (ARI v. 68, p. 1367) are now known to give erroneously low (by 10 %) activity readings. The original determinations were based on a chain of calibrations; a broken link in this chain was recently

Self-Assembled Monolayers Impact Cobalt Interfacial Structure in Nanoelectronic Junctions

March 5, 2015
Author(s)
Sujitra J. Pookpanratana, Leigh Lydecker, Curt A. Richter, Christina A. Hacker
The formation of molecular monolayers on template-stripped cobalt surfaces is reported. The quality of the alkane-based molecular structure was confirmed through spectroscopic measurements. We find that the self-assembly of bifunctional molecules has

Widebend CTL cell to measure operating range of UHF RFID

March 5, 2015
Author(s)
Jehoon Yun, YongChae Jeong, David R. Novotny, Jeffrey R. Guerrieri
A wideband coupled transmission line (CTL) cell to measure the operating range of an UHF RFID (ORUR) is presented. Also, an ORUR test system is proposed to increase the isolation to more than 55 dB. It is shown that the ORUR measured by this proposed cell
Displaying 18251 - 18275 of 73697
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