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Journals

The Biological Macromolecule Crystallization Database: Crystallization Procedures and Strategies

June 1, 2002

Author(s)

G L. Gilliland, Michael Tung, Jane E. Ladner

The Biological Macromolecule Crystallization Database (BMCD) archives crystallization data from published reports for all forms of biological macromolecules...

The Protein Data Bank (PDB)

June 1, 2002

Author(s)

H M. Berman, T Battistuz, Talapady N. Bhat, W Bluhm, P E. Bourne, K Burkhardt, L Iype, Sanjay Jain, P Fagan, J Marvin, D Padilla, Veerasamy Ravichandran, Barry I. Schneider, N Thanki, H Weissig, J Westbrook, C Zardecki

The Protein Data Bank (PDB) is the single worldwide repository of structural data of biological macromolecules. This paper describes the goals of the PDB, the...

Thermochemistry of the Biochemical Reaction: {pyrophosphate(aq) + H₂O(l) = 2 phosphate(aq)}

June 1, 2002

Author(s)

Robert N. Goldberg, Yadu D. Tewari

Calorimetric enthalpies of reaction have been measured for the overall biochemical reaction {pyrophosphate(aq) + H 2O(l) = phosphate(aq)}. The reaction was...

A Microshear Test to Measure Bond Strengths of Dentin-Polymer Interfaces

June 1, 2002

Author(s)

Walter G. McDonough, Joseph M. Antonucci, J He, Y Shimada, Martin Y. Chiang, Gary E. Schumacher, Carl R. Schultesiz

Mechanical property tests such as the diametral tensile, uniaxial tensile and transverse strength tests are commonly used in studying the interfacial properties...

Using a High-Value Resistor in Triangle Comparisons of Electrical Standards

June 1, 2002

Author(s)

Randolph Elmquist, Neil M. Zimmerman, William Huber

We propose an experiment with some advantages over other direct quantum metrology triangle comparisons. First, by using a cryogenic resistor that can be...

Free Radical-Induced Damage to DNA: Mechanisms and Measurement

June 1, 2002

Author(s)

M. Dizdaroglu, Pawel Jaruga, M Birincioglu, H Rodriguez

Free radicals are produced in cells by cellular metabolism and by exogenous agents. These species react with biomolecules in cells including DNA. The resulting...

New Patterns of Polymer Blend Miscibility Associtaed With Monomer Shape and Size Asymmetry

June 1, 2002

Author(s)

J Dudowicz, Karl Freed, Jack F. Douglas

Polymer blends are formulated by mixing polymers with different chemical structures to create new materials with properties intermediate between those of the...

IEEE Standard 802.16: A Technical Overview of the WirelessMAN^TM Air Interface for Broadband Wireless Access

June 1, 2002

Author(s)

Carl Eklund, Roger Marks, K. L. Stanwood, S X. Wang

The broadband wireless access industry, which provides high-rate network connections to stationary sites, has matured to the point at which it now has a...

Dispersion of Functionalized Nanoclay Platelets in an Amine-Cured Epoxy Resin System

June 1, 2002

Author(s)

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

Nanocomposites are a relatively new class of materials obtained by dispersing montmorillonite clay in polymer matrix. Evidences from literature suggest that...

An Overview of the Sparse Basic Linear Algebra Subprograms: The New Standard from the BLAS Technical Forum

June 1, 2002

Author(s)

I S. Duff, M A. Heroux, Roldan Pozo

We discuss the interface design for the Sparse Basic Linear Algebra Subprograms (BLAS), the kernels in the recent standard from the BLAS Technical Forum that...

An Updated Set of Basic Linear Algebra Subprograms (BLAS)

June 1, 2002

Author(s)

L S. Blackford, Roldan Pozo, Et al

This paper updates the ongoing BLAS effort, and summarizes what types of operations are now available. We now have flavors of BLAS for dense, banded, and sparse...

Structural Study of Li_1+x-yNb_1-x-3yTi_x+4yO₃ Solid Solutions

June 1, 2002

Author(s)

L Farber, Igor Levin, A Borisevich, I E. Grey, Robert S. Roth, P K. Davies

The structures of Lil+x-yNbl-,-3yTix+4yO3 solid solutions within the so-called M-phase field in the Li2O-Nb2O5-TiO2system were investigated using HRTEM and...

The Background and Development of MatML, a Markup Language for Materials Property Data

June 1, 2002

Author(s)

E F. Begley, C P. Sturrock

MatML is an extensible markup language (XML) for the management and exchange of materials property data. Launched in October 1999, and coordinated by the...

Grain Growth and Twin Formation in 0.74 PMN-0.26 PT

June 1, 2002

Author(s)

Jay S. Wallace, J M. Huh, J Blendell, C A. Handwerker

The mechanisms controlling normal and exaggerated grain growth in lead magnesium niobate-lead titanate (PMN-PT) ceramics have been investigated by varying the...

Unraveling the Symmetry of the Hole States Near the Fermi Level in the MgB₂ Superconductor

June 1, 2002

Author(s)

Y Zhu, A R. Moodenbaugh, G Schneider, J W. Davenport, T Vogt, Q Li, G Gu, Daniel A. Fischer, J Tafto

We use x-ray absorption spectroscopy (XAS) and electron energy loss spectroscopy (EELS) to study the near edge fine structure at the K-edge of boron in the...

Applying a Methodology for Microtensile Analysis of Thin Films

June 1, 2002

Author(s)

B Yeung, Alan M. Lytle, V Sarihan, David T. Read, Y F. Guo

A Microtensile methodology, developed at The National Institute of Standards and Technology (NIST), has been adopted and applied in Motorola to evaluate...

Cracking in Brittle Laminates from Concentrated Loads

June 1, 2002

Author(s)

H Chai, Brian R. Lawn

A study is made of the crack resistance of multilaminates consisting of brittle layers interleaved with compliant interlayers and bonded to compliant substrates...

Microtensile Bond Strength of Thermally Stressed Composite-Dentin Bonds Mediated by One-Bottle Adhesives

June 1, 2002

Author(s)

B Xie, Sabine H. Dickens, Anthony A. Giuseppetti

Purpose:To evaluate the effects of thermally stressing composite-dentin bonds in teeth subjected to a modified microtensile bond test that allowed application...

Deviations in the Thermal Properties of Ultrathin Polymer Network Films

June 1, 2002

Author(s)

Joseph~undefined~undefined~undefined~undefined~undefined Lenhart, Wen-Li Wu

X-ray reflectivity was used to characterize the electron density and rubbery expansion for cross-linked epoxy network films of various thickness adhered to...

Experimental Coherent Computation of a Multiple-Input and Gate Using Pure Molecular Superpositions

June 1, 2002

Author(s)

Z Amitay, R Kosloff, S R. Leone

Pure coherent superpositions of Li 2 rovibrational eigenstates are used for the experimental cohterent computation of a classical multiple-input AND logical...

Arsenic-Induced Ge Island Morphology Changes During Molecular Beam Epitaxy of Ge on Si(001)

June 1, 2002

Author(s)

B Liu, C L. Berrie, T Ma, S R. Leone

Atomic force microscopy is used to investigate a series of arsenic-mediated growth experiments in the molecular beam epitaxy of Ge on Si(00 1). The experiments...

Desorption of Arsenic Species During the Surfactant Enhanced Growth of Ge on Si (100)

June 1, 2002

Author(s)

C L. Berrie, S R. Leone

The desorption and scattering of As 4 and As 2 species from the surface during the growth of germanium films on Si(100) with continuous As 4deposition is...

Electron-Hole Correlations and Optical Excitonic Gaps in Quantum-Dot Quantum Wells: Tight-Binding Approach

June 1, 2002

Author(s)

R H. Xie, Garnett W. Bryant, S Lee, W Jaskolski

The electron-hole correlations in quantum-dot quantum wells (QDQW's) is investigated by incorporating Coulomb and exchange interactions into an empirical tight...

Continuously Tunable Precise, Single Frequency Optical Signal Generator

June 1, 2002

Author(s)

J D. Jost, John L. Hall, Jun Ye

To realize a genuine CW optical frequency synthesizer, a continuously tunable single-frequency CW laser has been employed to track preciselyany arbitrary...

Reaction Kinetics in the Ionic Liquid Methyltributylammonium Bis(trifluoromethylsulfonyl)imide. Pulse Radiolysis Study of (CF₃)-C-Center Dot Radical Reactions

June 1, 2002

Author(s)

J Grodkowski, Pedatsur Neta

The reactions of trifluoromethyl radicals with pyrene, phenanthrene, crotonic acid, and 2-propanol in the ionic liquid methyltributylammonium bis...

Structure and Properties of Silica Nanoclusters at High Temperatures

June 1, 2002

Author(s)

I V. Schweigert, K E. Lehtinen, Michael J. Carrier, Michael R. Zachariah

The properties of silica clusters at temperatures from 1500 to 2800 K are investigated using classical molecular dynamics simulations for particles containing...

A Decomposition-Based Approach to Layered Manufacturing

June 1, 2002

Author(s)

I Llinkin, R Janardan, J J. Majhi, J Schwerdt, Miles E. Smid, Ram D. Sriram

This paper introduces a new approach for improving the performance and versatility of Layered Manufacturing (LM), which is an emerging technology that makes it...

The NIST Microforce Realization and Measurement Project

June 1, 2002

Author(s)

David B. Newell, Jon R. Pratt, John A. Kramar, Douglas T. Smith, Edwin R. Williams

The National Institute of Standards and Technology (NIST) has launched a five-year Micro-force Realization and Measurement project focusing on the development...

Hyperborders in the Voronoi-Diabram-Based Neural Net for Pattern Classification

May 20, 2002

Author(s)

Camillo A. Gentile, M Sznaier

We propose a neural network to answer a point query in Rn partitioned based on the Voronoi diagram. Our novel design offers the potential to reduce both the...

Spin Polarization of Injected Electrons

May 17, 2002

Author(s)

William F. Egelhoff Jr., Mark D. Stiles, David P. Pappas, S Alvarado, J Gregg, J Bland, R A. Buhrman, Daniel T. Pierce, J Byers, M Johnson, B Jonker

A recent paper in Science made the claim of 92% polarization for the injection spin polarized electrons from a Ni scanning tunneling microscopy (STM) tip into...

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