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Search Publications

NIST Authors in Bold

Displaying 12101 - 12125 of 13225

Experimental Study of the Three Dimensional Internal Structure of Underventilated Compartment Fires in an ISO 9705 Room.

February 8, 2012
Author(s)
Kelly M. Opert, Andrew J. Lock, Matthew F. Bundy, Erik L. Johnsson, Cheolhong Hwang, Anthony P. Hamins, Stephen P. Fuss, Ki-Yong Lee
… the development of the National Institute of Standards and Technology (NIST) computer fire model - Fire Dynamics … burning conditions using movable measurement probes. In conjunction with the gas species and temperature … the mixture fraction (with and without soot included in the calculations), local equivalence ratio, carbon …

Elucidating the Influence of Local Structure Perturbations on the Metal-Insulator Transitions of V1-x MoxO2 Nanowires: Mechanistic Insights from an X-ray Absorption Spectroscopy Study

January 27, 2012
Author(s)
Bruce Ravel, C Patridge, Luisa Whittaker-Brooks, S Banerjee
… relevant metal-insulator phase transition temperature in closer proximity to room temperature. Here, we have used … which implies electron doping of the VO2 band structure. In addition, XAFS studies suggest that doping with Mo created … of decreasing V 3d-O 2p hybridization and likely assists in closing the characteristic band gap of the low-temperature …

DNA Molecules Descending a Nanofluidic Staircase by Entropophoresis

January 26, 2012
Author(s)
Samuel M. Stavis, Jon C. Geist, Michael Gaitan, Laurie E. Locascio, Elizabeth A. Strychalski
… method is termed entropophoresis. As implemented in experiments, long DNA molecules were dyed with cyanine dimers, dispersed in a high ionic strength buffer, and confined by a … biophysics, separation science, and lab-on- a-chip technology. …

Counting Bugs is Harder Than You Think

October 20, 2011
Author(s)
Paul E. Black
… project at the U.S. National Institute of Standards and Technology (NIST) with the goal of improving software …

Real-time Feedback for Usable Fingerprint Systems

October 11, 2011
Author(s)
Mary F. Theofanos, Brian C. Stanton, Yee-Yin Choong, Haiying Guan
… many advantages, and are increasingly gaining popularity in all kinds of applications. As the technologies mature, the … currently feedback information of fingerprint devices used in real world applications is very limited. We design a rich, …

Multigate Mesh Routing for Smart Grid Last Mile Communications

May 1, 2011
Author(s)
Hamid Gharavi, Bin Hu
… One of the most important issues in Smart Grid is to provide consumers with the knowledge of … technologies and systems have been greatly enhanced, in wireless communication environments the smart grid faces new challenges in terms of reliability. In this paper we are mainly …

Conformance Test Architecture for Biometric Data Interchange Formats - Version Beta 2.0

February 28, 2011
Author(s)
Fernando L. Podio, Dylan J. Yaga, Mark Jerde
… a comprehensive portfolio of biometric standards developed in support of interoperability and data interchange. A number … that products meet the technical requirements specified in the standards. Conformance testing captures the technical … assessment efforts through active technical participation in the development of conformance testing methodology …

Stability and Surface Topography Evolution in Nanoimprinted Polymer Patterns under a Thermal Gradient

September 16, 2010
Author(s)
Christopher Soles, Yifu Ding, H. Jerry Qi, Kyle J. Alvine, Hyun W. Ro, Dae Up Ahn, Jack Douglas, Sheng Lin-Gibson
… Nanostructures created in polymer films by nanoimprint lithography are subject to … the imprinted patterns, is a key scientific issue for this technology. The requirement of film stability against … of the surface topography of nanoimprinted patterns in polystyrene films through a high throughput annealing …

Certification of Three NIST Renewal Soil Standard Reference Materials(R) for Element Content: SRM 2709a San Joaquin Soil, SRM 2710a Montana Soil I, and SRM 2711a Montana Soil II

June 1, 2010
Author(s)
Elizabeth A. Mackey, Christopher S. Johnson, Richard M. Lindstrom, Stephen E. Long, Anthony F. Marlow, Karen E. Murphy, Rick L. Paul, Rachel S. Popelka-Filcoff, Savelas A. Rabb, John R. Sieber, Rabia Oflaz, Bryan E. Tomlin, Laura J. Wood, James H. Yen, Lee L. Yu, Rolf L. Zeisler, S. A. Wilson, M. G. Adams, Z. A. Brown, P. L. Lamothe, J. E. Taggart, C. Jones, J. Nebelsick
… For the past 20 y, the National Institute of Standards and Technology has provided three soil Standard Reference … quality assurance by a variety of laboratories involved in the determination of major, minor, and trace element … and replacement SRMs were produced which became available in 2009. This paper describes, in detail, the process for the …

Description & Results of the 2007 NIST/NOAA Interlaboratory Comparison Exercise Program for Organic Contaminants in Marine Mammal Tissues

March 1, 2010
Author(s)
John Kucklick, Rebecca Pugh, Aurore Guichard, Michele M. Schantz, Stephen Wise, Teresa Rowles
… The National Institute of Standards and Technology (NIST), in support of the National Oceanic & Atmospheric … biphenyl congeners (PCBs), & trace elements in marine mammal tissues. These exercises provide one … Comparison Exercise Program for Organic Contaminants in Marine Mammal Tissues …

Phase Diagram of Magnetic Nanodisks measured by SEMPA

January 20, 2010
Author(s)
Seok-Hwan Chung, Robert D. McMichael, Daniel T. Pierce, John Unguris
… determine the phase diagram of the magnetic ground states in these technologically important magnetic structures. … based on one of three configurations: a single domain in-plane, a single domain out-of-plane, or a vortex state. By … defined, however. Near the boundaries, we observe disks in a mixture of the different, metastable ground phases, and …

A Coherent Approach for Interrogating Polybenzoxazole Fibers for Residual Phosphoric Acid

September 17, 2009
Author(s)
Gale A. Holmes, Eun S. Park, Charles M. Guttman, Kathleen M. Flynn, John R. Sieber, Stephanie S. Watson, Kirk D. Rice
… (OLES) at the National Institute of Standards and Technology (NIST) initiated a research program to investigate the reasons for the failures do not reoccur. In a report that focused on the stability of the benzoxazole … causes the degradation of the benzoxazole ring that result in a reduction in ballistic performance. Prior to this work, …

GEOMETRIC MEASUREMENT COMPARISONS FOR ROCKWELL DIAMOND INDENTERS

September 6, 2009
Author(s)
Jun-Feng Song, Samuel R. Low III, Xiaoyu A. Zheng
… In the uncertainty budget of Rockwell C hardness (HRC) tests, … standardization. The National Institute of Standards and Technology (NIST) developed a microform calibration system … Rockwell diamond indenter No. 3581 was established in 1995, by which approximately 300 standard reference …

Overview of the Multiple Biometrics Grand Challenge

July 23, 2009
Author(s)
P J. Phillips, Patrick J. Flynn, J. R. Beveridge, Kevin W. Bowyer, W T. Scruggs, Alice O'Toole, David Bolme, Bruce A. Draper, Geof H. Givens, Yui M. Lui, Hassan A. Sahibzada, Joseph A. Scallan, Samuel Weimer
… is to improve the performance of face and iris recognition technology from biometric samples acquired under … Each challenge problem relaxes the acquisition constraints in different directions. In the Portal Challenge Problem, the goal is to recognize …

Design and Demonstration of PECVD Angled Multilayer Dielectric Mirrors Optimized for Micromachined Cavity Sidewalls

October 25, 2008
Author(s)
M.A. Perez, John Kitching, A Shkel
… from deposition within a cavity, significant variation in the thicknesses of the dielectric thin films composing the … Chemical Vapor Deposition (PECVD). These gradients in thickness limit the performance of the reflector at the … film thickness across the reflector surface. The reflector technology is ideally suited for use in atomic MEMS vapor …

Analyses of QC Materials for Huntington s Disease Genetic Testing

October 16, 2008
Author(s)
J P. Jakupciak, Kristy L. Richie
… of molecular testing using nucleic acid technologies in clinical and public health practice has increased the need … (e.g. cell lines) with known DNA mutations for use in diagnostics. Mutations are confirmed with sequence analysis, which is considered the gold standard. In the field of personalized medicine, NIST has created and …

Blueprint for Radioanalytical Metrology CRM's

October 16, 2008
Author(s)
Kenneth G. Inn, Hiromu Kurosaki, Carole Frechou, Chris Gilligan, Robert Jones, Stephen LaMont, Jeff Leggitt, Chunsheng Li, Keith McCroan, Ronald Swatski
… In 1977, the International Committee on Radionuclide … to 2 March 2006 at the National Institute of Standards and Technology (NIST) to evaluate the needs for new directions … Journal of Applied Research in Intellectual Disabilities …

From Stable Lasers to Optical-Frequency Clocks

October 16, 2008
Author(s)
John L. Hall, Jun Ye, L -. Ma, J L. Peng, M Notcutt, J D. Jost, A Marian
… of the Metre, extension of coherent frequency chain technology into the visible, development of a vast array of … growth of direct frequency measurements capability in the visible using fs comb techniques. We present our … to be the stability/reproducibility ultimate winners in the next generation - simpler systems based on gas cells, …

Preface to Dislocatrions 2000 Proceedings

October 16, 2008
Author(s)
Lyle E. Levine, L -. Kubin, R -. Becker
… relatively small number of dedicated individuals. However, in the early 1990's, the level of research began to recover, as advances in computer technology enabled the development of new computer codes for …

Realization of Reliable GaN Nanowire Transistors Utilizing Dielectrophoretic Alignment Technique

October 16, 2008
Author(s)
Abhishek Motayed, Maoqi He, Albert Davydov, John Melngailis, S N. Mohammad
… grown by direct reaction of NH3 and Ga, which resulted in free-standing nanowires along with GaN microplatelets. GaN nanowires were suspended in a solvent using sonication, using dielectrophoretic forces … The present technique is potentially compatible with CMOS technology and integrating nanodevices with conventional Si …

SRM 1955, Homocysteine and Folate in Human Serum; Production of a New Standard Reference Material

October 16, 2008
Author(s)
Mary B. Satterfield, B C. Nelson, Lorna T. Sniegoski, Adriana Hornikova, Nien-Fan Zhang, Christine M. Pfeiffer, Michael J. Welch
… and interlaboratoratory results are often poor, resulting in the need for a matrix reference material and reference methods. The National Institute of Standards and Technology (NIST) has developed new isotope dilution LC/MS … a new method for measurement of HCY, 5MT, and FA in the same trial has been developed and validated. In …
Displaying 12101 - 12125 of 13225
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