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Journals

Quantum State-Resolved Scattering of F + CH₄ -> HF(v,J) + CH₃; Nascent HF(v,J) Product State Distributions

September 1, 2000

Author(s)

W W. Harper, S A. Nizkorodov, David Nesbitt

State-to-state reactive scattering of F+CH 4->HF(Ņ,J)+CH 3 is studied usihng crossed supersonic jets and high-resolution (δŅnearly equal to}0.0001 cm -1) IR

An Ab Initio Study of the Kinetics of the Reactions of Halomethanes With the Hydroxyl Radical. 2. A Comparison Between Theoretical and Experimental Values of the Kinetic Parameters for 12 Partially Halogenated Methanes

September 1, 2000

Author(s)

F Louis, Carlos A. Gonzalez, Robert E. Huie, Michael J. Kurylo III

Ab initio calculations have been performed for the H-atom abstraction reactions from a series of halogenated methanes by the hydroxyl radical. Geometry

Critical Compressibility Factors for Chain Molecules

September 1, 2000

Author(s)

L L. Lue, Daniel G. Friend, J. R. Elliott

For many equations of state for fluids composed of chain-like molecules, the compressibility factor is related to the chain number concentration only through

Design of a Flexible, Integrated Testing System for STEP and OMG Standards

September 1, 2000

Author(s)

KC Morris, David Flater

New software standards supporting integration of manufacturing and engineering systems are emerging at a rapid pace. These standards are based on common method

Environmental Issues in Collaborative Design

September 1, 2000

Author(s)

Robert Allen, Ram D. Sriram

We report about environmental issues in collaborative design. Specifically, we present background and motivation for the need to design greener products. After

Magnetic Domain Structure and Imaging of Co-Pt Multilayer Thin-Film Nanostructures

September 1, 2000

Author(s)

Stephen E. Russek, William E. Bailey

Dots, with diameters of 100 nm and 220 nm, have been fabricated from (CoπPt^d0.8 nm)25 multilayer structures, where the Co thickness π was varied from 0.2 nm to

Time and Frequency Domain Measurements of Ferromagnetic Resonance in Small Spin-Valve

September 1, 2000

Author(s)

Stephen E. Russek, Shehzaad F. Kaka

Time and frequency domain magnetoresistance measurements of ferromagnetic resonance (FMR) in small spin-valvedevices are presented along with comparisons to

Electrical Conductivity of Xenon at Megabar Pressures

September 1, 2000

Author(s)

M. I. Eremets, E. A. Gregory, V. V. Struzhkin, H. K. Mao, R. J. Hemley, N. Mulders, Neil M. Zimmerman

The electrical transport properties of solid xenon were directly measured at pressures up to 155 GPa and temperatures from 300 K to 27 mK. The temperature

Artificial Neural Network Modeling for Improved On-Wafer OSLT Calibration Standards

September 1, 2000

Author(s)

Jeffrey Jargon, Kuldip Gupta, Donald C. DeGroot

We apply artificial neural networks (ANNs) to improve the modeling of on-wafer open-short-load-thru (OSLT) standards used for calibrating vector network

Metastable States in Large Angle Magnetization Rotations

September 1, 2000

Author(s)

Pavel Kabos, Shehzaad F. Kaka, Stephen E. Russek, Thomas J. Silva

Large angle rotations were studied in Permalloy thin films and spin valve devices. It is shown that edge effects or inhomogeneities strongly influence the

Radio Wave Propagation Characteristics in Lossy Circular Waveguides such as Tunnels, Mine Shafts, and Boreholes

September 1, 2000

Author(s)

Christopher L. Holloway, David A. Hill, Roger Dalke

Processing and Mechanical Properties of A1203/Ni3AI Composites with Interpenetrating Network

September 1, 2000

Author(s)

S Skirl, Ralph Krause, Sheldon M. Wiederhorn, J Rodel

Composites with microstructures of interpenetrating networks were manufactured by gas pressure infiltration of the Ni 3Al into porous preforms of aluminum oxide

Structural Study of Ba₁₁Fe₈Ti₉O₄₁ by X-Ray Diffraction

September 1, 2000

Author(s)

T Siegrist, C Svensson, Terrell A. Vanderah, Robert S. Roth

The crystal structure of Ba 11Fe 8Ti 9O 41 was determined using single-crystal and powder X-ray diffraction nethods. This new phase crystallizes in the

Modeling and Simulation of MAC Protocols for Wireless Devices: Coexistence Performance Evaluation

August 28, 2000

Author(s)

Nada T. Golmie, F Mouveaux

The IEEE 802 has recently formed a new working group, 802.15, for developing Physical and Medium Access Control layer specifications for Wireless Personal Area

Direct Evidence for Watson-Crick Base Pairs in a Dynamic Region of RNA Structure

August 23, 2000

Author(s)

B. Luy, John Marino

Trans-H-bond 2hJ N1N3 scalar couplings were measured for the RNA hairpin, CopA29, which is derived from the R1 plasmid encoded RNA transcript, CopA, 21 using a

Web Usability Logging: Tools and Formats

August 15, 2000

Author(s)

John V. Cugini

Systematic usability studies of web-based applications require software tools and data standards to support both the capture and representation of users'

Low Harmonic Distortion in a Josephson Arbitrary Waveform Synthesizer

August 14, 2000

Author(s)

Samuel P. Benz, Charles J. Burroughs, Paul D. Dresselhaus

The use of broadband integrated filters has enabled practical operating margins for ac waveforms synthesized from the perfectly quantized voltage pulses of

Use of Instrumented Indentation to Determine Mechanical Properties of Thin Films, Coatings and Functionally Graded Materials

August 10, 2000

Author(s)

Douglas T. Smith

Instrumented indentation testing is an effective local probe of the elastic and plastic properties of a material, and is particularly useful in the study of

Characterization of a Series of Self-Assembled Monolayers of Alkylated 1-Thia(Ethylene Oxides)(4-8) on Gold

August 8, 2000

Author(s)

David J. Vanderah, C Pham, S Springer, Vitalii I. Silin, Curtis W. Meuse

Self-assembled monolayers (SAMs) of a series of linear thiols containing a1-thiaoligo(ethylene oxide) [TOEO] moiety, i.e., HS(EO)xR - where R = C10H21, EO =

The Electronic Spectrum of the Prephenate Dianion. An Experimental and Theoretical (MD/QM) Comparison

August 2, 2000

Author(s)

A. E. Roitberg, S. E. Worthington, Marcia J. Holden, M P. Mayhew, Morris Krauss

Prephenate is the product of a Claisen rearrangement of chorismate. The enzyme chorismate mutase (CM from B. subtilis) accelerates the reaction by a factor of

Phonons and Static Dielectric Constant in CaTiO₃ From First Principles

August 1, 2000

Author(s)

Eric J. Cockayne, Benjamin P. Burton

CaTiO 3 has a static dielectric constant that extrapolates to a value greater than 300 at zero temperature. We investigate the origin of this large dielectric

The Effect of Anisotropy on the Second Virial Coefficient of H₂

August 1, 2000

Author(s)

Allan H. Harvey, M P. Hodges

Recently, Diep and Johnson 1 developed a pair potential for H 2-H 2 fitted to ab initio calculations at the coupled-cluster (CCSD(T)) level extrapolated to the

Use of Integrating Spheres as Uniform Sources for Accelerated UV Weathering of Advanced Materials

August 1, 2000

Author(s)

Joannie W. Chin, Jonathan W. Martin, Walter E. Byrd, E Embree

The primary method for obtaining laboratory weathering data for a wide range of commercial polymer products including coatings, textiles, elastomers, plastics

Characterization of Coating Microstructure Using Laser Scanning Confocal Microscopy

August 1, 2000

Author(s)

Li Piin Sung, Maria E. Nadal, Paul E. Stutzman, M E. McKnight

The appearance of coating materials depends on the physical attributes of the object's interaction with light. These physical attributes include the light

A Thermodynamic Study of the Conversion of Chorismate to Isochorismate

August 1, 2000

Author(s)

Yadu D. Tewari, A M. Davis, Prasad T. Reddy, Robert N. Goldberg

Microcalorimetry and high performance liquid chromatography were used to conduct a thermodynamic investigation of the biochemical reaction chorismate(aq) =

NIST Micronutrients Measurement Quality Assurance Program: Characterizing Individual Participant Measurement Performance over Time

August 1, 2000

Author(s)

David L. Duewer, Margaret C. Kline, Katherine E. Sharpless, Jeanice M. Brown Thomas, M. Stacewicz-Sapuntzakis, A. L. Sowell

ISO/IS 10303-227; Product Data Representation and Exchange Application Protocol: Plant Spatial Configuration

August 1, 2000

Author(s)

Mark E. Palmer, M Gilbert

This document specifies the application protocol for the exchange of the spatial configuration of plant systems with a central emphasis on piping systems. This

Impact of Elevated Ambient Temperatures on Capacity and Energy Input to a Vapor Compression System -- Literature Review

August 1, 2000

Author(s)

S F. Yana Motta, Piotr A. Domanski

Operation of a system at elevated ambient temperatures inherently results in a lower coefficient of performance (COP). This conclusion comes directly from

Linear Procedures for Structures with Velocity-Dependent Dampers

August 1, 2000

Author(s)

Fahim Sadek, B Mohraz, Michael A. Riley

Passive energy dissipation devices are used to reduce the damaging effects of earthquakes. These devices can absorb a portion of the earthquake-induced energy

Observation of Resonances Associated With Stereo and Regio Defects in the Crystalline Regions of Isotatic Polypropylene: Towards a Determination of Morphological Partitioning

August 1, 2000

Author(s)

David L. VanderHart, R G. Alamo, Marc R. Nyden, M S. Kim, L Mandelkern

We report defect-resonance patterns associated with 2 kinds of low-concentration defects typically found in metallocene-synthesized isotactic polypropylenes

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