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Search Publications

NIST Authors in Bold

Displaying 12251 - 12275 of 13225

PRELIMINARY RESULTS OF BTDF CALIBRATION OF TRANSMISSIVE SOLAR DIFFUSERS FOR REMOTE SENSING

September 19, 2016
Author(s)
Catherine C. Cooksey, Georgi T. Georgiev, Leibo Ding, James J. Butler
… Satellite instruments operating in the solar wavelength region require accurate and precise … of the optical properties of their diffusers used in pre-flight and post-flight calibrations. The majority of … comparisons with National Institute of Standards and Technology (NIST) and other industry and university-based …

Phase-coherent microwave-to-optical link with a self-referenced microcomb

June 6, 2016
Author(s)
Pascal P. Del'Haye, Aurelien C. Coillet, Tara M. Fortier, Katja M. Beha, Daniel C. Cole, Hansuek Lee, Kerry J. Vahala, Scott B. Papp, Scott A. Diddams
… modelocked laser frequency combs. But even with advances in laser technology, modelocked laser combs remain bulk-component devices that are hand-assembled. In contrast, a frequency comb based on the Kerr-nonlinearity …

Development of a Northern Continental Air Standard Reference Material

February 18, 2016
Author(s)
George C. Rhoderick, Duane Kitzis, Michael E. Kelley, Walter R. Miller Jr., Bradley Hall, Edward Dlugokencky, Pieter Tans, Antonio M. Possolo, Jennifer Carney
… The National Institute of Standards and Technology (NIST) recently began to develop standard mixtures … by the 2009 United States Congress to support research in climate change. To this end, NIST made suites of … dioxide (CO2), methane (CH4) and nitrous oxide (N2O) in a dry-natural air balance at ambient molar fraction …

Evaluation of microbial qPCR workflows using engineered Saccharomyces cerevisiae

January 24, 2016
Author(s)
Sandra M. Da Silva, Lindsay Harris, Nathanael David Olson, Steven Lund, Autumn S. Downey, Zvi Kelman, Marc L. Salit, Jayne D. Morrow
Aims: We describe the development and interlaboratory study of modified Saccharomyces cerevisiae as a candidate material to evaluate a full detection workflow including DNA extraction and quantitative polymerase chain reaction (qPCR). Methods and results

Novel Cyber Physical System for 3D Imaging of the Small Intestine in Vivo

December 11, 2015
Author(s)
Kamran Sayrafian, Kaveh Pahlavan, Yishuang Geng, David Cave, GUANQUN BAO, LIANG MI, EMMANUEL AGU, ANDREW KARELLAS, VAHID TAROKH
… Small intestine is the longest organ in the gastrointestinal tract where much of the digestion and … taking 2-D pictures from the lesions and the abnormalities in the entire length of the small intestine. Since precise … for inside the small intestine is presented as an enabling technology to facilitate the reconstruction of 3-D images …

Millimeter-Wave Near-Field Measurements Using Coordinated Robotics

December 1, 2015
Author(s)
Joshua A. Gordon, David R. Novotny, Ronald C. Wittmann, Michael H. Francis, Miranda L. Butler, Jeffrey R. Guerrieri
… The National Institute of Standards and Technology(NIST) recently developed a new robotic scanning … for high-frequency applications, is capable of scanning in multiple configurations, and is able to track measurement geometry at every point in a scan. The CROMMA combines realtime six-degree-of-freedom …

Evaluation of the Range Performance of Laser Scanners Using Non-planar Targets.

November 1, 2015
Author(s)
Prem K. Rachakonda, Balasubramanian Muralikrishnan, Craig M. Shakarji, Vincent D. Lee, Daniel S. Sawyer
… Group (DMG) at the National Institute of Standards and Technology (NIST) is supporting the development of … error between two derived points at many positions in the work volume of such systems. Some of the test … but that is limited to planar targets. Challenges in selecting a target artifact include the commercial …

Realization of Ground-State Artificial Skyrmion Lattices at Room Temperature

October 8, 2015
Author(s)
Dustin A. Gilbert, Brian B. Maranville, Andy L. Balk, Brian J. Kirby, Peter Fischer, Daniel T. Pierce, John Unguris, Julie A. Borchers, Kai Liu
… static and dynamic properties that provide new insight in fundamental problems of magnetism and exciting potentials for exploitation in novel magnetic technologies. Prerequisite are systems … of artificial Bloch skyrmion lattices over extended areas in their ground state at room temperature by patterning …

Best Practices for Evaluating Single Nucleotide Variant Calling Methods for Microbial Genomics

July 7, 2015
Author(s)
Nathanael D. Olson, Steven P. Lund, Rebecca Colman, Jeffery T. Foster, Jason W. Sahl, James M. Schupp, Paul Keim, Jayne B. Morrow, Marc L. Salit, Justin M. Zook
… Innovations in sequencing technologies have allowed biologists to make incredible advances in understanding biological systems. As experience grows, … far, much of the scientific communities’ focus for use in bacterial genomics has been on evaluating genome assembly …

A rational strategy for characterization of nanoscale particles by asymmetric flow field-flow fractionation

November 16, 2014
Author(s)
Julien C. Gigault, John M. Pettibone, Charlene E. Schmitt, Vincent A. Hackley
… characterization of nanoscale particles (NPs) dispersed in aqueous media. A range of fractionation conditions are … materials (e.g., metal NPs, asymmetric NPs), are utilized in order to validate and illustrate this approach. We … for both novice and advanced users of this measurement technology. …

Microfluidic Remote Loading for Rapid Single-Step Liposomal Drug Preparation

July 29, 2014
Author(s)
Wyatt N. Vreeland, Renee R. Hood, Don L. DeVoe
… combining liposome synthesis and remote drug loading in a continuous integrated process. Unlike established bulk methods for remote drug loading, in which each process step is performed in a series of … nearly monodisperse liposomes.16–20 The liposome synthesis technology is extended here with the addition of a …

BEHAVIOR OF STEEL COMPONENTS SUBJECTED TO LOCALIZED FIRE

June 11, 2014
Author(s)
Chao Zhang, John L. Gross, Lisa Y. Choe
… of these studies were: the behaviour of a steel component in a localized fire may be totally different from that of the component in a standard fire, and the failure temperature of a steel … (NFRL) at the National Institute of Standards and Technology (NIST). This facility is capable of conducting …

Development of Botanical and Marine Oil Standard Reference Materials for Fatty Acids

May 15, 2013
Author(s)
Michele M. Schantz, Lane C. Sander, Katherine E. Sharpless, Stephen A. Wise, James H. Yen, A. NguyenPho, Joseph M. Betz
… and Research, the National Institute of Standards and Technology has developed Standard Reference Material (SRM) … and Ω-6 Fatty Acids and SRM 3275 Ω-3 and Ω-6 Fatty Acids in Fish Oil. SRM 3274 consists of one ampoule of each of four … of each of three fish oils (3275-1 a concentrate high in docosahexaenoic acid, 3275-2 an anchovy oil high in …

NIST Gold Nanoparticle Reference Materials Do Not Induce Oxidative DNA Damage

February 1, 2013
Author(s)
Bryant C. Nelson, Donald H. Atha, John T. Elliott, Bryce J. Marquis, Elijah J. Petersen, Danielle Cleveland, Stephanie S. Watson, I-Hsiang Tseng, Andrew Dillon, Melissa Theodore, Joany Jackman
… toxicity studies. The National Institute of Standards and Technology has developed three gold nanoparticle (AuNP) … to induce oxidative damage to DNA using calf-thymus DNA in a cell-free model as well as in a HepG2 cell model. For both models, after a specified …

Advances in Biometric Standardisation Addressing Global Market Requirements for Biometric Standards

January 1, 2013
Author(s)
Fernando L. Podio
… development of a large portfolio of biometric standards in support of interoperability and data interchange is … standards within their scope of work is discussed. In many cases, the development of biometric standards impacts … of the ANSI/NIST-ITL standards led by the Information Technology Laboratory of NIST is also addressed. Although a …

Recent Calibrations of UTC(NIST) and UTC(USNO)

November 26, 2012
Author(s)
Victor S. Zhang, Thomas E. Parker, Russell Bumgarner, Jonathan Hirschauer, Angela Mckinley, Stephen Mitchell, Ed Powers, Jim Skinner, Demetrios Matsakis
… The National Institute of Standards and Technology (NIST) and the United States Naval Observatory … Transfer (TWSTFT, also known as TWSTT) techniques in our time and frequency transfer applications and to … calibration measurements via TWSTFT since August 2010. In addition, one "hybrid" calibration was made via cesium …

Understanding Interfacial Structure of Proton Exchange Membrane Fuel Cells

May 7, 2012
Author(s)
Kirt A. Page, Sangcheol Kim, Christopher L. Soles
… improvements have been demonstrated for fuel cell technology over the past decade, the major technical … durability should be overcome for fuel cells to compete in real markets and achieve wide-spread commercial success. … methods to characterize these complex systems. Recently, in an effort to understand the transport and structural …

Fire Exposures of Fire Fighter Self-Contained Breathing Apparatus Facepiece Lenses

November 29, 2011
Author(s)
Amy E. Mensch, George G. Cajaty Barbosa Braga, Nelson P. Bryner
… National Institute of Standards and Technology (NIST), conducted experiments which demonstrated a … of approximately 500 °C (932 °F) to 750 °C (1382 °F) in the room adjacent to the fire. A heat flux gauge was also … 2 kW/m2 to 55 kW/m2. Eight facepieces were tested in six different experiments, with three facepiece lenses …

U.S. Commercial Building Airtightness Requirements and Measurements

October 12, 2011
Author(s)
Steven J. Emmerich, Andrew K. Persily
… In 1998, Persily published a review of commercial and … that time, the U.S. National Institute of Standards and Technology has maintained a database of measured airtightness levels of U.S. commercial building leakages, in part to support the development and technical evaluation …

Used Nuclear Fuel Transportation Package Seal Performance inBeyond Design Basis Thermal Conditions

July 21, 2011
Author(s)
Jiann Yang, Edward Hnetkovsky, Felix Gonzalez, Christopher Bajwa, Robert Einziger, Earl Easton
… Commission (NRC) is evaluating the performance of seals in used fuel transportation packages during … fires, similar to the Baltimore tunnel fire that occurred in 2001. The performance of package seals is important for … (RES) funded the National Institute of Standards and Technology (NIST) to conduct small-scale thermal testing to …

Overall and Local Movement Speeds During Fire Drill Evacuations in Buildings up to 31 Stories

July 1, 2011
Author(s)
Richard D. Peacock, Bryan L. Hoskins, Erica D. Kuligowski
… geometry, speed, density, and pre-evacuation delay. In turn, engineering models of building evacuation use these … Laboratory at the National Institute of Standards and Technology (NIST) has been collecting stairwell movement data … To date, NIST has collected fire drill evacuation data in eight office building occupancies ranging from six to 62 …
Displaying 12251 - 12275 of 13225
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