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Journals

Carbon Dioxide, Global Warming, and Michael Crichtons State of Fear

April 13, 2006

Author(s)

Bert W. Rust

In his recent novel, State of Fear (HarperCollins, 2004), Michael Crichton questioned the connection between global warming and increasing atmospheric carbon...

Combinatorial Method for Determining Optimum Tissue Scaffold Composition for Imaging by X-Ray Techniques

April 12, 2006

Author(s)

Carl G. Simon Jr., Yanyin Yang, Shauna M. Dorsey, Gary E. Schumacher, Glenn M. Flaim, J Kohn, Sheng Lin-Gibson, Matthew Becker

X-ray imaging techniques can be very useful for tissue engineering applications. The ability to image radiopaque medical implants in vivo with X-ray radiography...

Capillarity Induced Solvent?Actuated Bonding of Polymeric Microfluidic Devices

April 12, 2006

Author(s)

Jayna J. Shah, Jon C. Geist, Laurie E. Locascio, Michael Gaitan, Rao Mulpuri, Wyatt N. Vreeland

Rapid, robust and economical fabrication of fluidic microchannels is of fundamental importance for the successful development of disposable lab-on-a-chip...

A Generalized Confidence Interval for a Measurand in the Presence of type-A and type-B Uncertainties

April 11, 2006

Author(s)

Chih-Ming Wang, Hariharan K. Iyer

We consider the problem of estimating a measurand based on a sequence of measurements. Each measurement has both type-A and type-B errors. The measurements may...

Short Fundamental Equations of State for 20 Industrial Fluids

April 11, 2006

Author(s)

Eric W. Lemmon, Roland Span

In a preceding project, functional forms for "short" Helmholtz equations of state for typical non- and weakly polar fluids and for typical polar fluids were...

Confirmation of Interstellar Methycyanodiacetylene (CH3C5N)

April 11, 2006

Author(s)

Lewis E. Snyder, J M. Hollis, P R. Jewell, Francis J. Lovas, A J. Remijan

Ten spectral lines of the symmetric-top molecule methylcyanodiacetylene (CH3C5N) have been detected with the 100 m Green Bank Telescope (GBT) toward the Taurus...

Simultaneous Grain Boundary Migration and Grain Rotation

April 11, 2006

Author(s)

M Upmanyu, David J. Srolovitz, A E. Lobkovsky, James A. Warren, W Carter

The energy of a polycrystalline network can be reduced by both grain boundary migration and by grain rotation. We perform a series of molecular dynamics (MD)...

Ballistic Fibers: A Review of the Thermal, Ultraviolet, and Hydrolytic Stability of the Benzoxazole Ring Structure

April 10, 2006

Author(s)

Gale A. Holmes, Kirk D. Rice, Chad R. Snyder

Texture Measurements in Fiber-Oriented PMN-PT

April 9, 2006

Author(s)

Kristen H. Brosnan, G L. Messing, Richard J. Meyer, Mark D. Vaudin

Textured (1-x)(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-PT) ceramics obtained by the templated grain growth (TGG) process a significant fraction of the piezoelectric...

Method for Measuring the Raman Gain Tensor in Optical Fiber

April 7, 2006

Author(s)

Idan Mandelbaum, M Bolshtyansky, T F. Heinz, Angela R. Hight Walker

In this paper we introduce a technique to measure the tensor properties of the Raman gain in a short piece (10m) of silica based polarization maintaining...

Performance of Electret Ionization Chambers in Magnetic Field

April 7, 2006

Author(s)

P Kotrappa, L R. Stieff, Timothy F. Mengers, Robert McMichael, Robert D. Shull

Electret Ionization Chambers (EIC) are widely used for measuring radon and radiation. The radiation measured includes alpha, beta and gamma radiation. These...

High Resolution THz Spectroscopy of Crystalline Trialanine: Extreme Sensitivity to β-sheet Structure and Co-crystallized Water

April 6, 2006

Author(s)

Karen M. Siegrist, C R. Bucher, Idan Mandelbaum, Angela R. Hight Walker, R Balu, Susan K. Gregurick, David F. Plusquellic

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...

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