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Journals

The Influence of Silane Coupling Agent Composition on the Surface Characterization of Fiber and on Fiber-Matrix Interfacial Shear Strength

July 1, 2003

Author(s)

E Feresenbet, Gale A. Holmes, D T. Raghavan

Epoxy resins are widely used as the matrix material for fiber reinforced composites in aircrafts, automobiles, ships and housing. Most of the reinforcement in...

An Optimization Approach to Multiple Sequence Alignment

July 1, 2003

Author(s)

Fern Y. Hunt, Anthony J. Kearsley, H H Wan

The problem of multiple sequence alignment is recast as an optimization problem using Markov decision theory. One seeks to minimize the expected or average cost...

Public Key Infrastructures That Safisfy Security Goals

July 1, 2003

Author(s)

William T. Polk, Nelson E. Hastings, A Malpani

This article describes the features of different PKI architectures, and the motivations behind their use. While some PKI architectures (e.g., hierarchies) are...

Effects of Different Whiskers on the Reinforcement of Dental Resin Composites

July 1, 2003

Author(s)

Hockin D. Xu, Janet Quinn, Douglas T. Smith, Anthony A. Giuseppetti, F Eichmiller

Objective: Whiskers were recently used to reinforce dental composites to extend their use to large stress-bearing restorations. The aim of this study was to...

Magnetic and Structural Properties of the 'Brown Phase' Solid Solution Ba(Nd_2-xLa_x)CuO₅

July 1, 2003

Author(s)

Winnie K. Wong-Ng, L Swartzendruber, James A. Kaduk, Lawrence H. Bennett

The compounds BaR 2CuO 5 (R = Y, and lanthanides) are well known impurities that often coexist with the high T c superconductors, Ba 2RCu 3O 6+X. With R=La and...

BaO-Nd₂O₃-CuO_x Subsolidus Equilibria Under Carbonate-Free Conditions at pO₂ = 100 Pa and at pO₂ = 21 kPa

July 1, 2003

Author(s)

Winnie K. Wong-Ng, Lawrence P. Cook, J Suh, R Coutts, Judith K. Stalick, Igor Levin, Qingzhen Huang

Subsolidus phase equilibria of the BaO-Nd 2O 3-CuO x system at pO 2 = 100 Pa (0.1 % O 2 by volume) and at pO 2 = 21 kPa (21 % O 2 by volume) have been...

Energetics of Li Atom Displacements in K1-xLixTa03: First-Principles Calculations

July 1, 2003

Author(s)

S A. Prosandeev, Eric J. Cockayne, Benjamin P. Burton

K 1-xLi xTaO 3 (KLT) solid solutions exhibit a variety of interesting physical phenomena related to large local displacements of Li-ions from ideal perovskite A...

Electron Backscatter Diffraction for Studies of Localized Deformation

July 1, 2003

Author(s)

Roy H. Geiss, Alexana Roshko, Kristine A. Bertness, R R. Keller

Electron backscatter diffraction (EBSD) was used to study localized deformation in two types ofconstrained-volume materials. We present a study of deformation...

Proton NMR Characterization of Room-Temperature Aging After Modest Thermal Cycling in Isotactic Polypropylenes

July 1, 2003

Author(s)

David L. VanderHart, Chad R. Snyder

An proton NMR method, based on simple Bloch-decay spectra in the solid state, is presented that enables one to follow, with excellent sensitivity, structural...

Particles in Silicon Depositon Discharges

July 1, 2003

Author(s)

Alan Gallagher, G Bano, K Rozsa

In a radio frequency or high frequency discharge, electrons are accelerated toward the central plasma region by oscillating sheath electric fields. In a dc...

Excess Noise Generation During Spectral Boradening in Microstructure Fiber

July 1, 2003

Author(s)

J N. Ames, S Ghosh

We observe that nanojoule femtosecond pulses that are spectrally broadened in microstructure fiber acquire excess noise. The excess noise is namifest as an...

Quantum Information With Neutral Atoms as Quibits

July 1, 2003

Author(s)

James V. Porto, S L. Rolston, B L. Tolra, Carl J. Williams, William D. Phillips

One of the essential features of a quantum computer is a quantum register of well-characterized qubits. Neural atoms in optical lattices are a natural candidate...

Momentum-transfer dependence of x-ray Raman scattering at the Be K-Edge

July 1, 2003

Author(s)

C Sternemann, M Volmer, J A. Soininen, H Nagasawa, M Paulus, H Enkisch, G Schmidt, M Tolan, W Schulke

Inelastic x-ray scattering spectra have been measured for energy losses around the Be K-edge in order to perform a systematic study of the dependence of the...

The Expanding NIST Atomic Spectra Database

July 1, 2003

Author(s)

Wolfgang L. Wiese

The NIST Atomic Spectra Database is reviewed, and the additions planned for the near-term and longer range future are discussed. Two examples are presented...

Quantum Information With Neutral Atoms as Qubits

July 1, 2003

Author(s)

James V. Porto, S L. Rolston, B L. Tolra, Carl J. Williams, William D. Phillips

Neutral atoms trapped in periodic optical potentials (optical lattices) offer a possible route toward quantum computation. The atoms can be kept well isolated...

Delivery of High Stability Optical and Microwave Frequency Standards Over an Optical Fiber Network

July 1, 2003

Author(s)

Jun Ye, J L. Peng, R J. Jones, K W. Holman, John L. Hall, D J. Jones, Scott A. Diddams, John E. Kitching, S Bize, James C. Bergquist, Leo W. Hollberg, Lennart Robertsson, L -. Ma

Optical and radio frequency standards located in JILA and NIST laboratories have been connected through a 6.9 km roundtrip optical fiber link. An optical...

Oxidative DNA Damage: Mechanisms, Mutation, and Disease

July 1, 2003

Author(s)

M S. Cooke, M D. Evans, M. Dizdaroglu, J Lunec

Oxidative DNA damage is an inevitable consequence of cellular metabolism, with a propensity for increased levels following toxic insult. Although more than base...

Theory of the Greenspan Viscometer

July 1, 2003

Author(s)

Keith A. Gillis, J B. Mehl, Michael R. Moldover

We present a detailed acoustic model of the Greenspan acoustic viscometer, a practical instrument for accurately measuring the viscosity eta of gases. As...

Substrate Specificities and Excision Kinetics of DNA Glycosylases Involved in Base-Excision Repair of Oxidative DNA Damage

July 1, 2003

Author(s)

M. Dizdaroglu

Reactive oxygen derived species such as free radicals are formed in living cells by normal metabolism and exogenous sources, and cause a variety of types of DNA...

Pseudo-Pure Fluid Equations of State for the Refrigerant Blends R-410A, R-404A, R-507A, and R-407C

July 1, 2003

Author(s)

Eric W. Lemmon

Pseudo pure-fluid equations of state explicit in Helmholtz energy have been developed to calculate the thermodynamic properties of the refrigerant blends R-410A...

Virtual Environment for Manipulating Microscopic Particles with Optical Tweezer

July 1, 2003

Author(s)

Thomas W. LeBrun, Kevin W. Lyons, Yong-Gu Lee

In this paper, we use virtual reality techniques to define an intuitive interface to a nanoscale manipulation device. This device utilizes optical methods to...

Coherent imagin of nanoscale plasmon patterns with a carbon nanotue optical probe

July 1, 2003

Author(s)

R Hillenbrand, F Keilmann, P Hanarp, D S. Sutherland, J Aizpurua

We introduce a carbon nanotube as optical near-field probe and apply it to visualize the plasmon fields of metal nanostructures in both amplitude and phase at...

Learning from Other Libraries: Benchmarking to Assess Library Performance

July 1, 2003

Author(s)

P J. Deutsch, Barbara P. Silcox

The Research Advisory Committee (RAC) at the National Institute of Standards and Technology (NIST) in its 2000 Annual Report to the NIST Director expressed...

Committee Reports for the 88th National Conference on Weights and Measures, July 13-17, 2003, Sparks, NV

July 1, 2003

Author(s)

H V. Oppermann, Georgia L. Harris

The 88th annual meeting of the National Conference on Weights and Measures will be held in Sparks, NV, July 13-17, 2003. The theme of the Conference is Moving...

Microwave Properties of Low-Temperature Co-Fired Ceramic Systems

July 1, 2003

Author(s)

Richard G. Geyer, Liang Chai, Aziz Shaikh, Vern Stygar

Co-fired, patterned multi-layer ceramic structures can provide RF designers with the means for compact, dense microwave circuit and component design spanning...

Suppression of Surface Pattern Formation in Blend Films With Block Copolymer Surfactant

July 1, 2003

Author(s)

Li Piin Sung, Jack F. Douglas, Charles C. Han, Alamgir Karim

We show that the addition of a small concentration of a block copolymer surfactant to a thin phase separating blend film can supppress the pattern formation...

The NSF NSDL GREEN Digital Library: Green's Functions Research and Education Enhancement Network

July 1, 2003

Author(s)

Laura M. Bartolo, Aadam C. Powell, G M. Shreve, Vinod Tewary

Green's functions are powerful mathematical tools with strong pedagogical value providing not only solutions to difficult problems but also visualization for...

Suppression of Phase Separation Pattern Formation in Blend Films With Block Copolymer Compatibilizer

July 1, 2003

Author(s)

Li Piin Sung, Jack F. Douglas, Charles C. Han, Alamgir Karim

We show that the addition of a small concentration of a block copolymer surfactant to a thin phase separating blend film can suppress the pattern formation that...

Suppression of Capillary Instability of a Polymeric Thread Via Parallel Plate Confinement

July 1, 2003

Author(s)

Y Son, Nicos Martys, John G. Hagedorn, Kalman D. Migler

We investigate the stability of a polymer thread imbedded in a matrix that is confined between two parallel plates. Utilizing a combination of experiments...

Cosolvent-assisted Spray Pyrolysis for the Generation of Metal Particles

July 1, 2003

Author(s)

Valeri I. Babushok, S H. Ehrman, Thomas Germer, Jae H. Kim, George W. Mulholland

A co-solvent assisted spray pyrolysis process was developed for the formation of pure metal particles from metal salt precursors without the direct addition of...

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