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Journals

Carbon-Containing Tetragonal Defects in 316L Austenitic Stainless Steel Carburized Under Paraequilibrium Conditions: An Internal Friction Study

June 1, 2007

Author(s)

A H. Heuer, F Ernst, H Kahn, G M. Michal, David J. Pitchure, Richard E. Ricker

An internal friction study was conducted into the strengthening mechanism of low-temperature, paraequilibrium, carburization of stainless steel. Low temperature...

Supplement to the 2004 Update of the AAPM Task Group No. 43 Report

June 1, 2007

Author(s)

Mark J. Rivard, Wayne Butler, Larry A. DeWerd, Saiful M. Huq, Geoffrey S. Ibbott, Christopher Melhus, Michael G. Mitch, Ravinder Nath, J Williamson

Since publication of the 2004 update to the American Association of Physicists in Medicine (AAPM) Task Group No. 43 Report (AAPM TG-43U1), several new low...

Critical-Current Measurements on an ITER Nb₃Sn Strand: Effect of Axial Tensile Strain

June 1, 2007

Author(s)

Najib Cheggour, John (Jack) W. Ekin, Loren F. Goodrich

The dependence of transport critical-current (I c on axial tensile strain ε was measured for a developmental Nb 3Sn multifilamentary strand as a function of...

An Empirical Model for the Warm-Up Drift of a Commercial Harmonic Phase Standard

June 1, 2007

Author(s)

Jeffrey Jargon, Jolene Splett, Dominic F. Vecchia, Donald C. DeGroot

We develop an empirical model for the warm-up drift in a harmonic phase standard used to calibrate the phase distortion of a nonlinear vector network analyzer...

Current Ripple Effect on n-Value

June 1, 2007

Author(s)

Loren F. Goodrich, Jolene Splett

We studied the systematic effect of current ripple on the determination of n-value, which is the index of the shape of the electric field-current (E-I) curve...

Effect of Fatigue under Transverse Compressive Stress on Slitted Y-Ba-Cu-O Coated Conductors

June 1, 2007

Author(s)

Najib Cheggour, John (Jack) W. Ekin, C. L. H. Thieme, Y Y. Xie

The slitting of wide Y-Ba-Cu-O coated-conductor tapes to a width desirable for applications allows a considerable reduction in conductor manufacturing cost...

Nonlinear Response of Combined Superconductor/Ferroelectric Devices: Fist Experiment Approach

June 1, 2007

Author(s)

Jordi Mateu, James Booth, Brian H. Moeckly

Superconductor thin films are known to possess a nonlinear response at microwave frequencies. These nonlinear effects can be described quantitatively by a...

Quantum key distribution over a 40-dB channel loss using superconducting single-photon detectors

June 1, 2007

Author(s)

Hiroki Takesue, Sae Woo Nam, Qiang Zhang, Robert Hadfield, Toshimori Honjo, Kiyoshi Tamaki, Yoshihisa Yamamoto

We report the first quantum key distribution (QKD) experiment to enable the creation of secure keys over 42 dB channel loss and 200 km of optical fibre. We used...

Measurement of Weld Toughness - Crack Tip Opening Angle Criterion

June 1, 2007

Author(s)

Philippe P. Darcis, Joseph D. McColskey, Christopher N. McCowan, Thomas A. Siewert

The stable tearing behavior of X100 pipeline steel through a girth weld section was investigated using a modified double cantilever beam specimens. A test...

Numerical Fluorescence Correlation Spectroscopy for Molecular Dynamics Analyses Under Non-Standard Conditions

June 1, 2007

Author(s)

Michael J. Culbertson, Joshua T. Williams, Wayland Cheng, Dee A. Stults, Emily R. Wiebrach, John J. Kasianowicz, Daniel L. Burden

A major concern in Fluorescence Correlation Spectroscopy (FCS) pertains to the accuracy of standard mathematical models that are used to extract kinetic...

Effect of the Spherical Indenter Tip Assumption on Nanoindentation

June 1, 2007

Author(s)

Li Ma, Lyle E. Levine

Nanoindentation is increasingly being used to explore mechanical properties on a local scale. One of the interests and challenges of nanoindentation is...

Disorder effects on the intrinsic nonlinear current density in YBa2Cu3O7

June 1, 2007

Author(s)

Brian M. Andersen, James Booth, P.J. Hirschfeld

We present harmonic generation measurements of the intrinsic nonlinear current density j2 of (YBCO) films at temperatures close the Tc. Experiments on a range...

Micromagnetics on Curved Geometries Using Rectangular Cells: Error Correction and Analysis

June 1, 2007

Author(s)

Michael J. Donahue, Robert McMichael

This paper presents an edge field correction for micromagnetic computations of arbitrarily shaped objects on rectangular grids. The correction is compatible...

Versatility and Robustness of Guassian Random Fields for Modeling Random Media

June 1, 2007

Author(s)

J A. Quintanilla, J T. Chen, R F. Reidy, Andrew J. Allen

High Contrast Scanning Nano-Raman Spectroscopy of Silicon

June 1, 2007

Author(s)

N Lee, R Hartschuh, D Mehtani, A Kisliuk, M D. Foster, Alexei Sokolov, J F. Maguire, Martin L. Green

Wavelength bistability in two-section mode-locked quantum-dot diode lasers

June 1, 2007

Author(s)

Mingming M. Feng, N. A. Brilliant, Steven T. Cundiff, Richard Mirin, Kevin L. Silverman

We report a two-section mode-locked quantum dot laser with an emission wavelength that is bistable with respect to applied bias on the saturable absorber region...

Use of a High Temperature Integrating Sphere Reflectometer for Surface Temperature Measurements

May 30, 2007

Author(s)

Leonard M. Hanssen, Claus Cagran, A Prokhorov, Sergey Mekhontsev, V B. Khromchenko

NIST has developed a new facility for the characterization of the infrared spectral emissivity of samples between ambient and 1000 C. For accurate measurement...

The Effect of Inter-Fiber Distance on the Interfacial Properties in E-Glass/Epoxy Model Composites

May 30, 2007

Author(s)

Chang K. Moon, Gale A. Holmes, Walter G. McDonough

The effect of inter-fiber

1310-nm Quantum Key Distribution System With Up-Conversion Pump Wavelength at 1550 nm

May 30, 2007

Author(s)

Hai Xu, Alan Mink, Barry J. Hershman, Xiao Tang

We show that the performance of a 1310-nm quantum key distribution (QKD) system with an up-conversion detector pumped at 1550 nm is comparable with or better...

Increased Cross-Correlation in Cascaded Four-Wave Mixing Processes

May 29, 2007

Author(s)

Jingyun Fan, Alan L. Migdall, L Wang

We report the measurement of increased noise cross-correlation between stokes and anti-stokes beams created in cascaded four-wave mixing processes with dual...

Narrow band microwave radiation from a biased single-Cooper-pair transistor

May 29, 2007

Author(s)

Ofer Naaman, Joe Aumentado

We show that a single-Cooper-pair transistor (SCPT) electrometer emits narrow-band microwave radiation when biased in its sub-gap region. Photo-activation of...

Phase Noise of X-band Oscillator and Amplifier Technologies Compared

May 29, 2007

Author(s)

David A. Howe, Archita Hati

We compare best-in-class phase noise of different technologies of oscillators and amplifiers at X-band. Results are presented based on recent measurements at...

Domain Ordering of Strained SML SrTiO3 Films on Si(001)

May 28, 2007

Author(s)

P Ryan, Joseph Woicik, D Wermeille, J.-W Kim, C S. Hellberg, H Li

Strong, Macroporous, and in Situ-Setting Calcium Phosphate Cement Layered Structures

May 26, 2007

Author(s)

Hockin D. Xu, Lisa E. Carey, Elena F. Burguera

Calcium phosphate cement (CPC) is highly promising for clinical uses due to its in situ-setting ability, excellent osteoconductivity and bone-replacement...

Numerical Optimization of Matrix-Assisted Laser Desorption/Ionization Time-of- Flight Mass Spectrometry: Application to Synthetic Polymer Molecular Mass Distribution Measurement

May 26, 2007

Author(s)

William E. Wallace, Charles M. Guttman, Kathleen M. Flynn, Anthony J. Kearsley

A novel approach is described for the selection of optimal instrument parameters that yield a mass spectrum which best replicates the molecular mass...

Human Polymorphic Variants of the NEIL1 DNA Glycosylase: Potential Implications for Human Health

May 25, 2007

Author(s)

Laura Roy, Pawel Jaruga, Thomas Wood, Amanda K. McCullough, M Miral Dizdar, R. S. Lloyd

In mammalian cells, the repair of DNA bases damaged by reactive oxygen species is primarily initiated by a series of DNA glycosylases that include OGG1, NTH1...

Dielectric polarization evolution equations and relaxation times

May 25, 2007

Author(s)

James R. Baker-Jarvis, Billy F. Riddle, Michael D. Janezic

In this paper we develop a model that can describe broadband dielectric response, and includes frequency-dependent loss and the effects of the local electric...

Cholesterol/Phospholipid Interactions in Hybrid Bilayer Membranes

May 25, 2007

Author(s)

Dustin Levy, Kimberly Briggman

The interactions between cholesterol and saturated phospholipids in hybrid bilayer membranes (HBMs) were investigated using the interface-sensitive technique of...

Polymer Viscoelasticity and Residual Stress Effects on Nanoimprint Lithography

May 24, 2007

Author(s)

Yifu Ding, Hyun Wook Ro, Jack F. Douglas, Ronald L. Jones, Daniel R. Hines, Alamgir Karim, Christopher L. Soles

We examine the influence of viscoelastic effects on the stability of nanoimprinted polymer films. The decay of features for polymers below the critical...

Terahertz Spectroscopy of Dicyanobenzenes: Anomalous Absorption Intensities and Spectral Calculations

May 24, 2007

Author(s)

Okan Esenturk, Ari Evans, Edwin J. Heilweil

Terahertz (THz) absorption spectra of the three isomeric structures of dicyanobenzene obtained from chloroform solutions and the solid phase at 298 K are...

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