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NIST Authors in Bold

Displaying 11201 - 11225 of 13225

Quantitative Measurements of the Size Scaling of Linear and Circular DNA in Nanofluidic Slitlike Confinement

February 14, 2012
Author(s)
Elizabeth A. Strychalski, Jon C. Geist, Michael Gaitan, Laurie E. Locascio, Samuel M. Stavis
… measurements of single linear and circular DNA molecules in nanofluidic slitlike confinement are reported. A novel … of an experimental scaling relation between the in-plane radius of gyration,R_||, and d, yielding … to nanofluidic slits and inform the design of nanofluidic technology for practical applications. …

CEINT/NIST PROTOCOL for the PREPARATION OF NANOSCALE TiO2 DISPERSIONS IN AN ENVIRONMENTAL MATRIX FOR ECO-TOXICOLOGICAL ASSESSMENT

February 2, 2012
Author(s)
Julian S. Taurozzi, Vincent A. Hackley, Mark R. Wiesner
… Toxicity and fate assessment are key elements in the evaluation of the environmental, health and safety … results continues to be a challenge. This can be traced in part to the lack of standardized dispersion protocols and … these issues, the National Institute of Standards and Technology (NIST) jointly with the Center for the …

Development of stabilized zero valent iron nanoparticles

January 31, 2012
Author(s)
Lauren F. Greenlee, Stephanie A. Hooker
… Many organic micropollutants have recently been identified in natural water sources and finished drinking water; many of … water treatment processes. There is an increasing interest in developing new water treatment technologies based on … cellulose stabilizers. The stabilizers are evaluated in their ability to stabilize ZVI nanoparticles during …

Determining Authentication Strength for Smart Card-based Authentication Use Cases

January 30, 2012
Author(s)
Ramaswamy Chandramouli
… identity tokens) for controlling access to Information Technology (IT) as well as physical resources. Depending upon … - What You Know, What You Have and What You are - used in the particular use case and (b) the entropy associated … of pair wise bindings between the four entities involved in smart card based authentications - the card (token), the …

Probing the timescale of the exchange interaction in a ferromagnetic alloy

January 27, 2012
Author(s)
Justin M. Shaw, Stefan Mathias, Chan La-O-Vorakiat, Hans T. Nembach, Thomas J. Silva, Mark Siemens, Henry Kapteyn, Margaret Murnane
… between individual atomic magnetic moments that results in a macroscopic magnetization. In this work, we use extreme ultraviolet pulses from … probe of ultrafast, optically driven, demagnetization in a ferromagnetic Fe-Ni alloy (permalloy). We show that for … Probing the timescale of the exchange interaction in a ferromagnetic alloy …

The New SI: The Role of CODATA

December 1, 2011
Author(s)
David B. Newell, Peter J. Mohr, Barry N. Taylor
… Council for Science : Committee on Data for Science and Technology (CODATA ) is to strengthen international science … fixed values for some fundamental constants take effect in the coming years, it will be the responsibility of this … e, and the Boltzmann constant, k, that will be used. In this presentation, the least squares adjustment procedure …

Modeling Produces Insight into Fire Behavior

November 1, 2011
Author(s)
Adam M. Barowy, Daniel M. Madrzykowski
… The National Institute of Standards and Technology (NIST) is the leader in the development of computer-based fire models that … fire simulations with FDS and Smokeview to assist in the understanding of the fire behavior in line of duty …

Enhanced coupling between light and surface plasmons by nanostructured Fabry-Perot resonator

September 26, 2011
Author(s)
Brian S. Dennis, Vladimir Aksyuk, Michael Haftel, Stefan T. Koev, Girsh Blumberg
… or corrugated metallic surfaces, have enormous potential in the fields of novel nano-optical and opto-electronic devices, as well as in spectroscopic, biological, and medical applications. For … Successful integration of nano-plasmonics with silicon technology radically depends on the conversion efficiency of …

Throughput and Delay Analysis of Half-Duplex IEEE 802.11 Mesh Networks

June 6, 2011
Author(s)
Camillo A. Gentile
… amount of literature on mesh networks has been amassed in the last decade, existing papers model network flow solely … rate from forwarding stations. This makes for inaccuracies in predicting throughput and delay, especially at network operation near or at full capacity. In our model, inbound traffic is dependent on the …

Certification of Standard Reference Material 660b

June 1, 2011
Author(s)
David R. Black, Donald A. Windover, Albert Henins, James J. Filliben, James P. Cline
… The National Institute of Standards and Technology (NIST) certifies a suite of Standard Reference …

Searching for applications with a fine-toothed comb

April 1, 2011
Author(s)
Nathan R. Newbury
… combs, like many ground-breaking technologies, are simple in concept; they results from the spectrum of any regular … is that this simple picture can be actually realized in a number of different experimental systems. The original …

Band Alignment of Metal-Oxide-Semiconductor Structure by Internal Photoemission Spectroscopy and Spectroscopic Ellipsometry

December 10, 2010
Author(s)
Nhan V. Nguyen, Oleg A. Kirillov, John S. Suehle
… In this paper, we will provide an overview of the internal … the interfacial electronic properties of heterostructures. In particular, the main interest is focused on the electron … recently, IPE and SE have become important metrology tools in band offset characterization for the MOS materials. The …

Epitaxial Graphene Electronic Structure And Transport

September 2, 2010
Author(s)
Joseph A. Stroscio, Walt A. de Heer, Claire Berger, Xiaosong Wu, Yike Hu, Ming Ruan, Phillip First, Robert Haddon, Benjamin Piot, Clement Faugeras, Marek Potemski
… Since its inception in 2001, the science and technology of epitaxial graphene on … reviewed. Early results on transport and the field effect in Si-face grown graphene monolayers provided …

Report on the NIST workshop of December 10, 2009: calibration strategies for bridging possible climate data gaps

August 12, 2010
Author(s)
Raju V. Datla, Joseph P. Rice, Catherine C. Cooksey, Kurtis J. Thome, Robert Barnes, Changyong Cao
… 10, 2009 at the National Institute of Standards and Technology to address the issue of data gaps in the time series of satellite measurements. Such gaps can … launch delay or failure, or inconsistencies or data jumps in radiometric scales between satellites, and limit the use …

Standard Reference Material 660b for X-ray Metrology

August 1, 2010
Author(s)
David R. Black, Donald A. Windover, Albert Henins, James J. Filliben, James P. Cline
… The National Institute of Standards and Technology (NIST) certifies a suite of Standard Reference … microstructure of the LaB6 powder was engineered to result in a crystallite size above that where size broadening is … Advances In X-Ray Analysis …

Comparison between the NIST and the KEBS for the Determination of Air kerma Calibration Coefficients for Narrow X-ray Spectra and Cs-137 Gamma-Ray Beams

February 26, 2010
Author(s)
C M. O'Brien, Ronaldo Minniti, Stanslaus Masinza
… compared between the National Institute of Standards and Technology (NIST) and the Kenya Bureau of Standards (KEBS). A … ionization chamber was calibrated by each laboratory in terms of the quantity air kerma in four x-ray reference radiation beams of energies between …

Proceedings of the Privilege Management Workshop, September 1-3, 2009

January 1, 2010
Author(s)
Tanya L. Brewer, Annie W. Sokol, Sheldon A. Durrant
… and concepts. The National Institute of Standards and Technology (NIST) and the National Security Agency (NSA) … first Privilege Management Workshop at NIST's main campus in Gaithersburg, Maryland, September 1-3, 2009. The workshop … state of the practice and future research directions in privilege management; and understanding and articulating …

Neutron Activation Analysis with Pe- and Post-Irradiation Chemical Separation for the Value Assignments of AL, V, and Ni in the New Bovine Liver SRM 1577C

October 22, 2009
Author(s)
Rolf L. Zeisler, Bryan E. Tomlin, Karen E. Murphy
… as carried out at the National Institute of Standards and Technology (NIST) is inadequate for de-termining Al, Ni, and V at the levels found in the newly prepared Standard Reference Material (SRM) … the determination of Ni via 58Co. To overcome shortcomings in the value assignment, the authors initiated a cooperative …

Prospects for a New Cold Neutron Beam Measurement of the Neutron Lifetime

October 5, 2009
Author(s)
Maynard S. Dewey, Kevin J. Coakley, David M. Gilliam, G. Greene, A. Laptev, Jeffrey S. Nico, William M. Snow, F. E. Wiefeldt, A. Yue
… In the most accurate cold neutron beam determination of the … is underway at the National Institute of Standards and Technology (NIST) that will significantly reduce this contribution to the uncertainty in the lifetime determination. The next largest source of …

Status Report on the First Round of the SHA-3 Cryptographic Hash Algorithm Competition

September 23, 2009
Author(s)
Andrew R. Regenscheid, Ray A. Perlner, Shu-jen H. Chang, John M. Kelsey, Mridul Nandi, Souradyuti Paul
… The National Institute of Standards and Technology is in the process of selecting a new cryptographic hash … complement the SHA-2 hash algorithms currently specified in FIPS 180-3, Secure Hash Standard. In October, 2008, 64 …

Adhesion and Mechanics of Complex Polymer Interfaces

August 16, 2009
Author(s)
Christopher M. Stafford, Jun Y. Chung, Heqing Huang, Adam J. Nolte, Peter M. Johnson, Edwin P. Chan
… and properties of polymer interfaces play an integral role in numerous technological applications, particularly in the areas of coatings and adhesives. These interfacial … interactions of soft materials at and near hard surfaces. In particular, we are investigating interfacial structure and …

Approaches to color rendering measurement

July 15, 2009
Author(s)
Wendy L. Davis, Yoshihiro Ohno
… color rendering abilities. The CRI has shortcomings in application, however, and its problems are pronounced when … The International Commission on Illumination (CIE) is in the process of developing and recommending a new metric of …

Description and Results of the 2005 NIST/NOAA Interlaboratory Comparison Exercise Program for Organic Contaminants in Marine Mammal Tissues

October 16, 2008
Author(s)
John Kucklick, Rebecca Pugh, Paul R. Becker, Michele M. Schantz, Stephen Wise, T K. Rowles
… The National Institute of Standards and Technology (NIST), in support of the National Oceanic and Atmospheric … biphenyl congeners (PCBs), and trace elements in marine mammal tissues. These exercises provide one … Comparison Exercise Program for Organic Contaminants in Marine Mammal Tissues …
Displaying 11201 - 11225 of 13225
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