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Journals

Stabilization of the n = 3 Ruddlesden-Popper Phases: Sr₄Mn_3-xFe_xO_10-δ and Sr_4-yCa_yMn₃O_{10- δ}

November 1, 2001

Author(s)

R Chen, Martha Greenblatt, Leonid A. Bendersky

Sr 4Mn 3O 10, which crystallizes in space group Cmca, is not a Ruddlesden-Popper (RP) phase. The partial substitution of either Mn by Fe or Sr by Ca leads to a

Growth of Submicron AlGaN/GaN/AlGaN Heterostructures by Hydride Vapor Phase Epitaxy (HVPE)

November 1, 2001

Author(s)

Denis Tsvetkov, Y Melnik, Albert Davydov, Alexander J. Shapiro, O Kovalenkov, J B. Lam, J J. Song

Multi layer AlGaN/GaN epitaxial structures were grown on SiC by HVPE method. Characterization of the grown structures was performed using SEM, SIMS, mercury

Effect of Tangential Loading on Critical Loads for Radial-Cracking in Brittle Coatings

November 1, 2001

Author(s)

C S. Lee, Brian R. Lawn, D H. Kim

Results of Hertzian contact tests investigating the effects of superposed tangential loads on the critical conditions for radial cracking at the under-surfaces

Characterization of 2.5 Inch Diameter Bulk GaN Grown from Melt-Solution

November 1, 2001

Author(s)

V Soukhoveev, V Ivantsov, Y Melnik, Albert Davydov, Denis Tsvetkov, K Tsvetkova, I Nikitina, A Zubrilov, A Lavrentiev, Vladimir A. Dmitriev

Crystal growth from a melt or melt-solution is a widely accepted technique for industrial-scale production of important semiconductor materials. Recently we

From Bulk to Nanoscale Magnetism and Exchange Bias in CuO Nanoparticles

November 1, 2001

Author(s)

A Punnoose, H Magnone, M Seehra, John E. Bonevich

Detailed studies of the temperature (5 K to 350 K) and magnetic field variations (up to H = 50 k0e) of the magnetization of CuO nanoprticles of size range 37 nm

Correlation of Positron Annihilation and Other Dynamic Properties in Small Molecule Glass-Forming Substances

November 1, 2001

Author(s)

K L. Ngai, L R. Bao, Albert F. Yee, Christopher Soles

Positron annihilation lifetime spectroscopy (PALS) measurements are performed on four widely studied small molecule glass-formers (ortho terphenyl, glycerol

Transient Interfacial Instability in Bilayer Polymer Films As Observed by Neutron Reflectivity Studies

November 1, 2001

Author(s)

M Hayashia, TT Hashimoto, M J. Weber, H Grull, A R. Esker, Charles C. Han, Sushil K. Satija

We investigated fundamental processes involved in reactive blending of a system composed of polyamide (PA) and deuterated polysulfone having a reactive end

2 Combinatorial Methods Polymer Science: Synthesis and Characterization

November 1, 2001

Author(s)

J C. Meredith, A P. Smith, Alamgir Karim, Eric J. Amis

Combinatorial methodologies offer the ability to efficiently measure relevant chemical and physical properties over lare regimes of varible space. We review

Spatially Correlated Dynamics in a Simulated Glass-Forming Polymer Melt: Analysis of Clustering Phenomena

November 1, 2001

Author(s)

Y Gebremichael, T B. Schroder, Francis W. Starr, S C. Glotzer

In recent years, experimental and computational studies have demonstrated that the dynamics of glass-forming liquids are spatially heterogeneous, exhibiting

Probe Diffusion in Thin PS Free-Standing Films

November 1, 2001

Author(s)

Y Pu, H White, Miriam Rafailovich, J Sokolov, A Patel, Christopher C. White, Wen-Li Wu, V Zaitsev, S A. Schwarz

DSIMS was performed to determine the dynamics of thin free standing polystyrene films by investigating the probe diffusion in high molecular weight polymer

Ultrafast Time-Resolved Soft X-Ray Photoelectron Spectroscopy of Dissociating Br₂

November 1, 2001

Author(s)

L Nugent-Glandorf, M Scheer, D A. Samuels, A M. Mulhisen, E R. Grant, X Yang, V M. Bierbaum, S R. Leone

The dissociation of excited state Br 2 is probed with the novel technique of ultrafast soft x-ray photoelectron spectroscopy. Excited Br 2 molecules are

Kinetics of C₂H Radical Reactions With Ethene, Propene, and 1-Butene Measured in a Pulsed Laval Nozzle Apparatus at T = 103 K and 296 K

November 1, 2001

Author(s)

A B. Vakhtin, Dwayne E. Heard, I W. Smith, S R. Leone

Low-temperature kinetics of the reactions of C 2H radical with ethene (k 1) propene (k 2), and 1-butane (kd3^) are studied using a pulsed Laval nozzle

Validation of Fourier Transform Microwave Spectroscopy for Trace-Gas Analysis of Multicomponent Mixtures

November 1, 2001

Author(s)

R S. DaBell, Pamela M. Chu, Gerald T. Fraser, R D. Suenram

There is strong interest by regulatory agencies and automobile manufacturers, motivated in large part by increasingly stringent emission standards, for

Driving Bose-Einstein-Condensate Vorticity With a Rotating Normal Cloud

November 1, 2001

Author(s)

P C. Haljan, Ian R. Coddington, P Engels, Eric A. Cornell

We have developed an evaporative cooling technique that accelerates the circulation of an ultra-cold 87Rb gas, confined in a static harmonicpotential. As a

Matrix Isolation Study of the Interaction of Excited Neon Atoms With Allene and Propyne. Infrared Spectra of H₂CCCH₂⁺ and H₂CCCH^-

November 1, 2001

Author(s)

D Forney, Marilyn E. Jacox, C Lugez, Warren E. Thompson

When a Ne:allene or a Ne:propyne sample was codeposited at approximately 5 K with a sample of pure neon that had been excited in a microwave discharge to

Ionization of Boron, Aluminum, Gallium and Indium by Electron Impact

November 1, 2001

Author(s)

Yong Sik Kim, Philip M. Stone

Measurements of electron impact of ionization of neutral Al, Ga, and In show large cross sections compared to other elements in the same rows of the periodic

Use of Legendre Transforms in Chemical Thermodynamics

November 1, 2001

Author(s)

R Alberty, J M. Barthel, E R. Cohen, Michael B. Ewing, Robert N. Goldberg, E Wilhelm

The fundamental equation of thermodynamics for the internal energy U may include terms for various types of work and involves only differentials of extensive

Convective Heat Transfer Coefficients for Near-Horizontal Two-Phase Flow of Nitrogen and Hydrogen at Low Mass and Heat Flux

November 1, 2001

Author(s)

N T. Van Dresar, James D. Siegwarth, M M. Hasan

Correlations for convective heat transfer coefficients are reported for two-phase flow of nitrogen and hydrogen under low mass and heat flux conditions. The

Application of the Low-Loss Scanning Electron Microscope Image to Integrated Circuit Technology Part II - Chemically-Mechanically Planarized Samples

November 1, 2001

Author(s)

O C. Wells, M Mcglashen-powell, Andras Vladar, Michael T. Postek

Chemical-mechanical planarization (CMP) is a process that gives a flat surface on a silicon wafer by removing material from above a chosen level. This flat

Electrical Linewidth Test Structures Patterned in (100) Silicon-on-Insulator for Use as CD Standards

November 1, 2001

Author(s)

Michael W. Cresswell, John E. Bonevich, Richard A. Allen, Nadine Guillaume, Lucille A. Giannuzzi, Sarah C. Everist, Christine E. Murabito, Patrick J. Shea, Loren W. Linholm

Crystal Structure of Dephospho-Coenzyme A Kinase from Haemophilus Influenzae

November 1, 2001

Author(s)

G Obmolova, A Teplyakov, N Bonander, E Eisenstein, A J. Howard, G L. Gilliland

phospho-coenzyme A kinase catalyzes the final step in CoA biosynthesis, the phosphorylation of the 3'-hydroxyl group of ribose using ATP as a phosphate donor

Measurement and Analysis of Results Obtained on Biological Substances With D.S.C.

November 1, 2001

Author(s)

H J. Hinz, Frederick P. Schwarz

Differential scanning calorimeters (DSCs) have been widely used to determine the thermodynamics of phase transitions and conformational changes in biological

Transmission-line Parameter Approximation for Digital Simulation

November 1, 2001

Author(s)

Dylan Williams, Christopher L. Holloway

This paper compares closed-form approximations for coplanar waveguide and microstrip transmission-line parameters to accurate measurements and full-wave

An Equivalent Transmission Line Model Containing Dispersion for High Speed Digital Lines

November 1, 2001

Author(s)

Alberto Scarlatti, Christopher L. Holloway

The increase in processor speeds in the last few years has created a growing need for the accurate characterization of waveform propagation on lossy printed

Nanofabricated SNS Junction Series Arrays in Superconductor-Normal Metal Bilayers

November 1, 2001

Author(s)

Robert Hadfield, G. Burnell, M. G. Blamire, Paul Dresselhaus, Samuel Benz

Laser Desorption Ionization and MALDI Time-of-Flight Mass Spectrometry for Low Molecular Mass Polyethylene Analysis

November 1, 2001

Author(s)

R Chen, T Yalcin, William E. Wallace, Charles M. Guttman, L Li

Polyethylene's inert nature and difficulty to dissolve in conventional solvents at room temperature present special problems for sample preparation and

Characterization of a [(O3/2SiMe)(x)(Osi(OH)Me)(y) (OSiMe2)z] silsesquioxane copolymer resin by mass spectrometry

November 1, 2001

Author(s)

R E. Tecklenburg, William E. Wallace, H Chen

Silsesquioxanes or three-dimensional organosilicon resins, continue to generate much interest due to their unique structures and physical properties. Methyl

Characterization of a [(O_3/2SiMe)_x(OSi(OH)Me)_y(OSiMe₂)z] Silsesquioxane Copolymer Resin by Mass Spectrometry

November 1, 2001

Author(s)

R E. Tecklenburg, William E. Wallace, H Chen

Electrospray ionization Fourier transform ion cyclotron resonance (ESI FTICR) mass spectrometry and matrix-assisted laser desorption/ionization time-of-flight

The TREC Question Answering Track

October 29, 2001

Author(s)

Ellen M. Voorhees

The Text REtrieval Conference (TREC) question answering track is an effort to bring the benefits of large-scale evaluation to bear on a question answering (QA)

Real-Time Operating System Timing Jitter and its Impact on Motor Control

October 29, 2001

Author(s)

Frederick M. Proctor, William P. Shackleford

General-purpose microprocessors are increasingly being used for control applications due to their widespread availability and software support for non-control

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