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Journals

Measurement and Correlation of the Thermal Conductivity of Pentafluoroethane (R125) from 190 K to 512 K at Pressures to 70 MPa

April 6, 2006

Author(s)

Richard A. Perkins, Marcia L. Huber

New experimental data on the thermal conductivity of pentafluoroethane (R125) are reported that allow the development of an improved wide-range correlation...

Toward rapid and inexpensive identification of bulk carbon nanotubes

April 6, 2006

Author(s)

Katie Hurst, Anne Dillon, Jeffrey Blackburn, John H. Lehman

The volume fraction of metallic and semiconducting carbon single-wall nanotubes (SWNTs)hasbeen estimated for purified laser vaporization SWNTs, from an...

Solubilities of Gases in the Ionic Liquid 1-n-Butyl-3-methylimidazolium bis(Trifluoromethylsulfonyl)imide

April 6, 2006

Author(s)

Byung-chul Lee, Stephanie L. Outcalt

Solubility data of carbon dioxide, propane, propylene, n-butane, and 1-butene in the ionic liquid 1-n-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl...

International Comparison of Impact Reference Materials (2004)

April 3, 2006

Author(s)

Christopher N. McCowan, G. Roebben, Y. Yamaguchi, S. Lefrancois, Jolene D. Splett, S. Takagi, A. Lamberty

A three-year horizontal comparison has been completed between national laboratories that certify specimens for the indirect verification of Charpy impact test...

A Comparison of R245fa Pool Boiling Measurements to R123, and R245fa/Isopentane on a Passively Enhanced, Horizontal Surface

April 3, 2006

Author(s)

Mark A. Kedzierski

This study presents pool boiling heat transfer measurements for R245fa, R123 and a mixture of R245fa and isopentane on a flattened passively enhanced low...

High-accuracy determination of epitaxal AlGaAs composition with inductively coupled plasma optical emission spectroscopy

April 1, 2006

Author(s)

Kristine A. Bertness, C M. Wang, Marc L. Salit, Gregory C. Turk, Therese A. Butler, Albert J. Paul, Lawrence H. Robins

The evaluation of an autosomal SNP 12-plex assay

April 1, 2006

Author(s)

Peter M. Vallone, Amy E. Decker, Michael D. Coble, John M. Butler

SNPs have the potential to play a useful role in human identification testing. Small PCR amplicon sizes associated with SNP typing technologies make SNPs...

Profiling of length heteroplasmies in the human mitochondrial DNA control regions from blood cells in the Korean population

April 1, 2006

Author(s)

M G. Shin, Barbara C. Levin, H J. Kim, H R. Kim, I K. Lee, D Cho, S J. Kee, Jun H. Shin, S P. Suh, D W. Ryang

A Thermodynamic Study of Ketoreductase-Catalyzed Reactions. 2. Reduction of Cycloalkanones in Non-Aqueous Solvents

April 1, 2006

Author(s)

Yadu D. Tewari, Karen W. Phinney, J F. Liebman

The equilibrium constants for the ketoreductase-catalyzed reactions (cycloalkanone + 2-propanol = cycloalkanol + acetone) have been measured inn-hexane, n...

Cryptographic Hash Standards ? Where Do We Go From Here?

April 1, 2006

Author(s)

William E. Burr

The two most commonly used cryptographic hash functions, MD5 and SHA-1, have been successfully attacked?it is no longer advisable to use them in some...

Long-Term Frequency Instability of CPT Clocks With Microfabricated Vapor Cells

April 1, 2006

Author(s)

Vladislav Gerginov, Svenja A. Knappe, P Schwindt, V Shah, Leo W. Hollberg, John E. Kitching

We present an evaluation of the long-term frequency instability and environmental sensitivity of a chip-scale atomic clock based on coherent population trapping...

Characterization of Gunpowder Samples Using Time-of-flight Secondary Ion Mass Spectrometry (TOF-SIMS)

April 1, 2006

Author(s)

Christine M. Mahoney, John G. Gillen, Albert J. Fahey

Adaptive Modulation In Ad Hoc DS/CDMA Packet Radio Networks

April 1, 2006

Author(s)

Michael R. Souryal, B R. Vojcic, R L. Pickholtz

SANS and XRR Porosimetry of a Polyphenylene Low-k Dielectric

April 1, 2006

Author(s)

M S. Silverstein, Michael Shach-Caplan, Barry J. Bauer, R C. Hedden, V. J. Lee, B G. Landes

Nanometer scale porosity is being introduced into low-k dielectrics in an attempt to achieve the permittivities of less than 2.0. X-ray reflectivity (XRR)...

Some Improved Transition Probabilities for Neutral Carbon

April 1, 2006

Author(s)

Charlotte Fischer

An earlier paper ( Zatsarinny O and Froese Fischer C 2002 J.Phys. B: 35 4669) presented oscillator strengths for transitions from the 2p23P multiplet to high...

Long-term frequency instability of atomic frequency references based on coherent population trapping and microfabricated vapor cells

April 1, 2006

Author(s)

Vladislav Gerginov, Svenja A. Knappe, P Schwindt, V Shah, Leo W. Hollberg, John E. Kitching

We present an evaluation of the long-term frequency instability and environmental sensitivity of a chip-scale atomic clock based on coherent population trapping...

Programmable Vector Point-Spread Function Engineering

April 1, 2006

Author(s)

M R. Beversluis, L Novotny, Stephan J. Stranick

We use a nematic liquid crystal spatial light modulator (SLM) to control the vector point spread function of a microscope objective by manipulating the pupil...

Octave-spanning Ti:sapphire laser with a repetition rate {greater than} 1 GHz for optical frequency measurements and comparisons

April 1, 2006

Author(s)

Tara M. Fortier, A Bartels, Scott A. Diddams

We demonstrate a self-referenced, octave-spanning modelocked Ti:sapphire laser with a tunable repetition rate (550 MHz – 1.3 GHz). We use the frequency comb...

New Guidelines for d13C Measurements

April 1, 2006

Author(s)

T Coplen, W A. Brandt, M Gehre, Manfred Groning, HAJ Meijer, Blaza Toman, Jennifer R. Verkouteren

Consistency of 13C measurements can be improved 39-47% by anchoring the 13C scale with two isotopic referencematerials differing substantially in 13C/12C. It...

Effects of incorporating nano-sized calcium phosphate particles on properties of whisker-reinforced dental composites

April 1, 2006

Author(s)

Xun Xu, H K. Hockin, L Sun, Michael D. Weir, Shozo Takagi, Laurence Chow, B Hockey

Semantic Enterprise Application Integration Standards

April 1, 2006

Author(s)

Nenad Anicic, Zuran Marjanovic, Nenad Ivezic, Albert T. Jones

This paper investigates the potential of the Semantic Web technologies to support a semantic-based Enterprise Application Integration (EAI) standards...

Transport Properties of Argon at Zero Density From Viscosity-Ratio Measurements

April 1, 2006

Author(s)

E May, Michael R. Moldover, Robert F. Berg, John J. Hurly

We determined the zero-density viscosity and thermal conductivity of argon with an uncertainty of only 0.039 % in the temperature range 200 K to 400 K. Our...

Characterization and performance of new MiniSTR loci for typing degraded samples

April 1, 2006

Author(s)

Michael D. Coble, Carolyn R. Steffen, Peter Vallone, John M. Butler

Setting standards and developing technology to aid the human identity testing community

April 1, 2006

Author(s)

John M. Butler, Michael D. Coble, Amy E. Decker, David L. Duewer, Carolyn R. Steffen, Margaret C. Kline, Janette W. Redman, Peter Vallone

Our project team at the U.S. National Institute of Standards and Technology (NIST) is funded by the National Institute of Justice (NIJ) to conduct research that...

Spatial Distributions of Trapping Centers in HfO2/SiO2 Stacked Dielectrics

April 1, 2006

Author(s)

Da-Wei Heh, Eric M. Vogel, J B. Bernstein, Chadwin Yang, George A. Brown, Gennadi Bersuker, Pui-Yee Hung, Alain C. Diebold

An analysis methodology basd on charge pumping (CP) measurement was applied to extract the spatial depth profile of traps in the SiO2/HfO2 gate stacks. This...

Lattice Model of Equilibrium Polymerization: V. Scattering Properties and the Width of the Critical Regime for Phase Separation

April 1, 2006

Author(s)

Kyunil Rah, Karl Freed, J Dudowicz, Jack F. Douglas

Dynamic clustering associated with self-assembly in many complex fluids can qualitatively alter the shape of their phase boundaries and produce large changes in...

Conformational Temperature Dependence of a Poly(ethylene-co-acrylic acid) Stationary Phase Investigated by Nuclear Magnetic Resonance Spectroscopy and Liquid Chromatography

April 1, 2006

Author(s)

C. Meyer, O. Pascui, D. Reichert, Lane C. Sander, Stephen Wise, K. Albert

Prevailing Over Wires in Healthcare Environments: Benefits and Challenges

April 1, 2006

Author(s)

David E. Cypher, Nicolas Chevrollier, Nicolas Montavont, Nada T. Golmie

The objectives of this article are to survey the benefits and challenges that poise the deployment and operation of wireless communications in support of...

New Guidelines for delta-13-C Measurements

April 1, 2006

Author(s)

T.B. Coplen, W.A. Brand, M. Gehre, M. Groning, H.A.J. Meijer, Blaza Toman, R. Michael Verkouteren

Measuring the Modulus of Soft Polymer Networks via a Buckling-Based Metrology

April 1, 2006

Author(s)

Elizabeth A. Wilder, Shu Guo, Sheng Lin-Gibson, Michael J. Fasolka, Christopher Stafford

We present a new method for measuring the modulus of soft polymer networks (E 10 MPa).This metrology utilizes compression-induced buckling of a sensor film...

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