Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Journals

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...

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...

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...

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...

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...

ThermoData Engine (TDE): Software Implementation of the Dynamic Data Evaluation Concept. 2: Equations of State On-Demand and Dynamic Updates over the Web

May 23, 2007

Author(s)

Vladimir Diky, Chris D. Muzny, Eric W. Lemmon, Robert D. Chirico, Michael D. Frenkel

ThermoData Engine (TDE) is the first full-scale software implementation of the dynamic data evaluation concept, as reported recently in this journal. The...

Smart Machining Systems: Robust Optimization and Adaptive Control Optimization for Turning Operations

May 22, 2007

Author(s)

Robert W. Ivester, Jarred C. Heigel

A critical aspect of smart machining systems is the appropriate management of knowledge and information to support effective decision-making. Uncertainty...

Adsorption Behavior of DNA-Wrapped Carbon Nanotubes on Self-Assembled Monolayer Surfaces

May 22, 2007

Author(s)

Rebecca A. Zangmeister, James E. Maslar, A Opdahl, Michael J. Tarlov

We have examined the adsorption of DNA-wrapped single walled carbon nanotubes (DNA-SWNTs) on hydrophobic, hydrophilic, and charged surfaces of alkylthiol self...

Quantitative Surface Analysis of Fe-Ni Alloy Films by XPS, AES and SIMS

May 21, 2007

Author(s)

David S. Simons, K. J. Kim, John G. Gillen, D Moon, H Jin, H Kang

Single-photon source characterization with twin infrared-sensitive superconducting single-photon detectors

May 21, 2007

Author(s)

Robert Hadfield, Martin Stevens, Richard Mirin, Sae Woo Nam

We report on the high fidelity characterization, via spontaneous emission lifetime and g (2)τ measurements, of a cavity-coupled quantum dot single-photon source...

Thermodynamic-Temperature Determinations of the Ag and Au Freezing Temperatures Using a Detector-Based Radiation Thermometer

May 20, 2007

Author(s)

Howard W. Yoon, David W. Allen, Charles E. Gibson, Maritoni A. Litorja, Robert D. Saunders, Steven W. Brown, George P. Eppeldauer, Keith R. Lykke

We describe the development of a radiation thermometer calibrated for spectral radiance responsivity using cryogenic, electrical-substitution radiometry to...

Ligand Dissociation and Core Fission from Diphosphine Protected Gold Clusters

May 19, 2007

Author(s)

Denis E. Bergeron, Jeffrey W. Hudgens

Highly monodisperse samples of diphosphine ligand (1,3-Bis(diphenylphosphino)propane or 1,5-bis(diphenylphosphino)pentane) protected gold nanoparticles form...

The Use of Apertures to Create Discrete Combinatorial Libraries Using Pulsed Laser Deposition

May 18, 2007

Author(s)

Nabil Bassim, Peter K. Schenck, Eugene Donev, Edwin J. Heilweil, Eric J. Cockayne, Martin L. Green, Leonard Feldman

In Pulsed-Laser Deposition (PLD), there are many processing parameters that influence film properties which may be studied such as substrate-target distance...

Preparing and Probing Atomic Number States With an Atom Interferometer

May 17, 2007

Author(s)

Jennifer Sebby-Strabley, Ben L. Brown, M Anderlini, Patricia J. Lee, William D. Phillips, James V. Porto, Philip R. Johnson

We describe the controlled loading and measurement of number-squeezed states and Poisson states in individual sites of a double well optical lattice. These...

Computer Simulations of Ionomer Self-Assembly and Dynamics

May 17, 2007

Author(s)

Moonjoy Goswami, S K. Kumar, Aniket Bhattacharya, Jack F. Douglas

Computer simulations of a model telechelic ionomer, i.e. a melt with a charge at each chain end along with neutralizing counterions, indicate a form of self...

Self-Assembly of Patchy Particles Into Polymer Chains: A Parameter-Free Comparison Between Wertheim Theory and Monte Carlo Simulation

May 17, 2007

Author(s)

F Sciortino, Emanuela Bianchi, Jack F. Douglas, Piero Tartaglia

We numerically study a simple fluid composed of particles having a hard-core repulsion, complemented by two short-ranged attractive (sticky) spots at the...

Influence of Indium-Tin Oxide Surface Structure on the Ordering and Coverage of Organosilane, Carboxylic Acid and Thiol Monolayers

May 17, 2007

Author(s)

M Cerruti, C Rhodes, M Losego, A Efremenko, Jon-Paul Maria, Daniel A. Fischer, D L. Feldheim, S Franzen, Jan Genzer

We report on the formation of organosilane-, carboxylic acid- and thiol-based self assembled monolayers (SAMs) on two lots of commercially prepared Indium Tin...

Silicon Nanowire on Oxide/Nitride/Oxide for Memory Application

May 16, 2007

Author(s)

Qiliang Li, Xiaoxiao Zhu, Hao Xiong, Sang-Mo Koo, D. E. Ioannou, Joseph Kopanski, John S. Suehle, Curt A. Richter

We report the fabrication and characterization of Si nanowire memory devices with oxide/nitride/oxide stacked layers as the gate dielectrics and charge storage...

Direct Detection of Nonlinear Ferromagnetic Resonance in Thin Films by the Magneto-Optical Kerr Effect

May 16, 2007

Author(s)

Thomas Gerrits, Pavol Krivosik, Michael Schneider, C E. Patton, Thomas J. Silva

The longitudinal magneto-optical Kerr effect is used to obtain a calibrated measure of the dynamic magnetization response over the ferromagnetic resonance (FMR)...

Face Recognition Algorithms surpass humans matching faces across changes in illumination

May 15, 2007

Author(s)

P. Jonathon Phillips, Alice J. O'Toole, Fang Jian, Julianne Ayadd, Nils Penard, Herve Abdi

We compared the accuracy of eight state-of-the-art face recognition algorithms with human performance on the same task. Humans and algorithms determined whether...

Was this page helpful?