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Journals

First Principles Based Calculations of the CaCO₃ - MgCO₃ and CdCO₃-MgCO₃ Subsolidus Phase Diagrams

March 1, 2003

Author(s)

Benjamin P. Burton, A Van de Walle

Planewave pseudopotential calculations of formation energies for several ordered supercells were used as bases for first principles calculations of the CaCO3 -...

Interaction of GroEL and GroEL/GroES complexes with a nonnative subtilisin variant: a small-angle neutron scattering study

March 1, 2003

Author(s)

Susan T. Krueger, Susan K. Gregurick, J. Zondlo, Edward Eisenstein

Enantioselective Separations in Capillary Electrophoresis with Dextran Sulfate as the Chiral Selector

March 1, 2003

Author(s)

Karen W. Phinney, Lane C. Sander

Effect of Caged Fluorescent Dye on the Electroosmotic Mobility in Microchannels

March 1, 2003

Author(s)

David J. Ross, Laurie E. Locascio

We report on measurements of electroosmotic mobility in polymer microchannels and silica capillaries with and without the addition of a caged fluorescein dye to...

Determination of Methyl-Substituted Polycyclic Aromatic Hydrocarbons in Diesel Particulate-Related Standard Reference Materials

March 1, 2003

Author(s)

Dianne L. Poster, Bruce A. Benner Jr, Michele M. Schantz, Lane C. Sander, Stephen A. Wise, M. G. Vangel

Development and Analysis of Three Diesel Particulate-Related Standard Reference Materials for the Determination of Chemical, Physical, and Biological Characteristics

March 1, 2003

Author(s)

Dianne L. Poster, M. J. Lopez de Alda, Michele M. Schantz, Lane C. Sander, Stephen A. Wise, M. G. Vangel

Biometric Standards -- A Key to a More Secure World

March 1, 2003

Author(s)

Michael D. Hogan, Fernando L. Podio

Biometric technologies are becoming the foundation of an array of highly secure identification and verification solutions. Over the past eighteen months, the U...

Estimation of Q-Factors and Resonant Frequencies

March 1, 2003

Author(s)

Kevin J. Coakley, Jolene D. Splett, Michael D. Janezic, R F. Kaiser

We estimate the quality factor Q and resonant frequency f o of a microwave cavity based on resonance curve observations on an equally-spaced frequency grid. The...

Spotlight - Biometric Authentication -- Are You Who You Claim To Be?

March 1, 2003

Author(s)

Michael D. Hogan

The recent establishment of the International Organization for Standardization/International Electrotechnical Commission Joint Technical Committee 1/Subcomittee...

Accuracy of Nanoscale Pitch Standards Fabricated by Laser-Focused Atomic Deposition

March 1, 2003

Author(s)

Jabez McClelland, W Anderson, C Bradley, M Walkiewicz, R Deslattes, E Jurdik, Robert Celotta

The pitch accuracy of a grating formed by laser-focused atomic deposition is evaluated from the point of view of fabricating nanoscale pitch standard artifacts...

R&D Investment Trends: U.S. Needs More High-Tech

March 1, 2003

Author(s)

Gregory C. Tassey

A varied set of barriers inhibit approaching some optimum for R&D investment. Among them is the fact that the majority of R&D is still performed in the...

Analysis of Performance Variation Using Query Expansion

March 1, 2003

Author(s)

Alan Smeaton

Information retrieval performance evaluation is commonly made based on the classical recall and precision based figures or graphs. However, important...

Change Detection In XML Documents

March 1, 2003

Author(s)

K H. Lee, Y C. Choy, S B. Cho, Xiao Tang, V R. McCrary

This paper presents an efficient algorithm to detect changes between old and new versions of an XML document. The difference between the two versions can be...

In Situ TEM Observations of Fracture in Nanolaminated Metallic Thin Films

March 1, 2003

Author(s)

Timothy J. Foecke, D E. Kramer

Fracture of single crystal nanolaminted thin films has been investigated through in situ straining of cross-sectional samples of Cu/Ni nanolaminates grown on Cu...

Mechanical, Thermal, and Chemical Properties - Cracking and the Indentation Size Effect for Knoop Hardness of Glasses

March 1, 2003

Author(s)

George D. Quinn, P A. Green, K Xu

The influence of cracking upon apparent Knoop hardness was investigated for five glasses. The Knoop hardnesses decreased with increasing load in accordance with...

Magnetization Dynamics Modeled in Magnetic Thin Films

March 1, 2003

Author(s)

Robert D. McMichael

One of the challenges facing designers of high data rate computer hard drives and magnetic memory chips is that for most magnetic metals, it typically takes a...

Ru Spacer Thickness Dependences of the Domain Nucleation and Growth in Co/Ru/Co Synthetic Antiferromagnet

March 1, 2003

Author(s)

V S. Gornakov, Valerian I. Nikitenko, William F. Egelhoff Jr., Robert D. McMichael, Alexander J. Shapiro, Robert D. Shull

The relative orientation of Co magnetization vectors in a Co/Ru/Co/Ta structure vary gradually from parallel to antiparallel orientation as a function of Ru...

Small-Angle Neutron Scattering Study of the Role of Feedstock Particle Size on the Microstructural Behavior of Plasma-Sprayed Yttria-Stabilized Zirconia Deposits

March 1, 2003

Author(s)

H Boukari, Andrew J. Allen, Gabrielle G. Long, J Ilavsky, Jay S. Wallace, C C. Berndt, H Herman

The microstructures of thick plasma-sprayed yttria-stabilized (8% mass) zirconia deposits have been studied in a series of Porod small-angle neutron scattering...

Cracking and the Indentation Size Effect for Knoop Hardness of Glasses

March 1, 2003

Author(s)

George D. Quinn, P Green, K Xu

The Knoop Hardness of five glasses as measured over a wide range of indentation loads. Hardness decreased with increasing load in accordance with the classic...

Evolution of Strain-Induced Microstructure and Texture in Commercial Aluminum Sheet Under Balanced Biaxial Stretching

March 1, 2003

Author(s)

Stephen W. Banovic, Timothy J. Foecke

The evoluation of surface topography and crystallographic texture was investigated under balanced biaxial stretching in sheets of aluminum alloy 5052 H32. Two...

Structure and Dimensions of PAMAM/PEG Dendrimer-Star Polymers

March 1, 2003

Author(s)

R C. Hedden, Barry J. Bauer

Dendrimer-star polymers are prepared by grafting monofunctional poly(ethylene glycol) (PEG) chains of low polydispersity onto the terminal groups of poly...

X-Ray Induced Fluorescence Measurement of Density Distributions in a Metal-Halide Lighting Arc

March 1, 2003

Author(s)

John J. Curry, H G. Adler, S Shastri, W -. Lee

The use of x-ray induced fluorescence to measure elemental densities in a metal-halide lighting arc is described. High-energy synchrotron radiation generated on...

Exciton States in Quantum Dot Solids: Excitation Transfer and Dynamic Decorrelation

March 1, 2003

Author(s)

Garnett W. Bryant

Coherent exciton transport in Quantum dot solids is determined by electron and hole interdot tunneling and dipole-dipole interdot excitation transfer. We...

Kinetics of Carbonyl Sulfide Hydrolysis. 2. Effect of n-Alkanes in Mixtures of Water Plus Hydrocarbon

March 1, 2003

Author(s)

W C. Andersen, Thomas J. Bruno

Carbonyl sulfide (COS), which occurs as an impurity in commercial sources of propane, can hydrolyze in the presence of water to form hydrogen sulfide(H2S) and...

Kinetics of Carbonyl Sulfide Hydrolysis. 1. Catalyzed and Uncatalyzed Reactions in Mixtures of Water Plus Propane

March 1, 2003

Author(s)

W C. Andersen, Thomas J. Bruno

Carbonyl sulfide (COS), which occurs as an impurity in commercial sources of propane, can hydrolyze in the presence of water to form hydrogen sulfide(H2S) and...

OH Reactivity and UV Spectra of Propane, n-Propyl Bromide, and Isopropyl Bromide

March 1, 2003

Author(s)

S N. Kozlov, Vladimir L. Orkin, Robert E. Huie, Michael J. Kurylo III

The rate constants for the reactions of OH radicals with the 1-bromopropane, 2-bromopropane, and propane were measured using the flash photolysis reasonance...

Dielectric Permittivity of Eight Gases Measured with Cross Capacitors

March 1, 2003

Author(s)

James W. Schmidt, Michael R. Moldover

A 4-ring, toroidal cross capacitor was used to measure accurately the relative dielectric permittivity ε(p,T) of He, Ar, N 2, O 2, CH 4, C 2H 6, C 3H 8, and CO...

Our Plan for a Wireless Loan Service

March 1, 2003

Author(s)

Nancy Allmang

The article would describe, from a librarian's standpoint, what one library has done to gear up for a wireless LAN. It would discuss specific steps the library...

The Influence of the Laser Energy and Matrix of MALDI on the Molecular Mass Distribution of Poly(ethylene glycol)

March 1, 2003

Author(s)

S Wetzel, Charles M. Guttman, Kathleen M. Flynn

The molecular mass distribution (MMD) that is obtained in synthetic polymer characterization may be biased by preferential desorption/ionization of low mass...

Complex Permittivity Measurements of Common Plastics over Variable Temperatures

March 1, 2003

Author(s)

Billy F. Riddle, James R. Baker-Jarvis, Jerzy Krupka

In this paper we present complex permittivity data at macorwave frequencies for many common plastics from 125 K to 375 K. The measurements were made using a TE...

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