Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Journals

Photodissociation Spectroscopy of Stored CH⁺ Ions: Detection, Assignment and Close-Coupled Modeling of Near-Threshold Feshbach Resonances

November 1, 2002

Author(s)

U Hechtfischer, Carl J. Williams, J Lange, J Linkemann, D Schwalm, R Wester, A Wolf, D Zajfman

We have measured and theoretically analyzed a photodissociation spectrum of the CH + molecular ion in which most observed energy levels lie within the fine...

Effect of Cold Collisions on Spin Coherence and Resonance Shifts in a Magnetically Trapped Ultra-Cold Gas

November 1, 2002

Author(s)

D M. Harber, H J. Lewandowski, J M. McGuirk, Eric A. Cornell

We have performed precision microwave spectroscopy on ultra-cold 87Rb confined in a magnetic trap, both above and below the Bose-condensation transition. The...

Formation and Reaction of Br₂^-Radicals in the Ionic Liquid Methyltributylammonium Gis(trifluoromethylsufonyl)imide and in Other Solvents

November 1, 2002

Author(s)

J Grodkowski, Pedatsur Neta

Reaction of solvated electrons with BrCh 2Ch 2Br produces Br - and CH 2CH 2Br, which decomposes rapidly into CH 2=CH 2 and Br with Br 2 -. The stability of Br 2...

Temperature Dependence of the Acid Dissociation Constant of the Hydroxyl Radical

November 1, 2002

Author(s)

G A. Poskrebyshev, Pedatsur Neta, Robert E. Huie

The acid dissociation constant of the hydroxyl radical in aqueous solution was determined by pulse radiolysis from the pH dependence of the rate constant for...

Structure of HI1333 (YhbY), a Putative RNA-Binding Protein From Haemophilus Influenzae

November 1, 2002

Author(s)

M A. Willis, W Krajewski, V R. Chalamasetty, Prasad T. Reddy, A J. Howard, O Herzberg

The structures of a number of small [alpha]/[Beta] RNA-binding proteins with diverse biological functions are known1. Their topologies and the locations of the...

Comparisons of Practical Attenuation Lengths Obtained from Different Algorithms for Application in XPS

November 1, 2002

Author(s)

Aleksander Jablonski, Cedric J. Powell

Practical effective attenuation lengths (EALs) are needed for the determination of overlayer-film thicknesses by X-ray photoelectron spectroscopy (XPS). We have...

Enthalpy of Fuel-Gas Odorants on Surrogate Soil Surfaces by Gas Chromatography

November 1, 2002

Author(s)

K E. Miller, Thomas J. Bruno

Heats of adsorption and heats of interaction for natural gas odorants on clay and organo-clay, respectively, were determined using wall coated open tubular...

Standards for Bullets and Casings

November 1, 2002

Author(s)

Jun-Feng Song, Theodore V. Vorburger, Robert A. Clary, Eric P. Whitenton, Li Ma, Susan M. Ballou

The National Institute of Standards and Technology is developing reference standards through its Office of Law Enforcement Standards with funding provided by...

Impact of the Trapping of Anode Hot Holes on Silicon Dioxide Breakdown

November 1, 2002

Author(s)

Eric M. Vogel, Da-Wei Heh, J B. Bernstein

Hot holes are injected from the anode and trapped in thin silicon dioxide using constant voltage stress at large gate voltage. By comparing oxides having...

Optical Trap Detector for Calibration of Optical Fiber Powermeters: Coupling Efficiency

November 1, 2002

Author(s)

John H. Lehman, Christopher L. Cromer

The optical trap detector is based on two 1 cm x 1 cm silicon photodiodes and a spherical mirror contained in a package that is highly efficient for measuring...

Development and Validation of Corridor Flow Submodel for CFAST

November 1, 2002

Author(s)

J. L. Bailey, Glenn P. Forney, P. A. Tatem, Walter W. Jones

The modeling of fire and smoke spread is an evolving field. As knowledge is acquired and resources become available, models are enhanced to make their...

Acoustophoretic Characterization of Cement Suspensions

November 1, 2002

Author(s)

Robert J. Flatt, Chiara C. Ferraris

Acoustophoresis has been used to study the evolution of the surface potential of hydrating cement suspensions because it is potentially capable of measuring...

Dealing with Degeneracy in Triangulation

November 1, 2002

Author(s)

Francis Sullivan, Isabel M. Beichl

This is a tutorial article on a quick method for dealing with degeneracy in geometric computations with specific reference to triangulation. The type degeneracy...

Database-Assisted Design for Wind: Basic Concepts and Software Development

November 1, 2002

Author(s)

T Whalen, Fahim H. Sadek, Emil Simiu

Standard provisions for wind loads on buildings have traditionally been based on summary tables and/or plots suitable for slide-rule calculations. The accuracy...

High-Power 4H-SiC JBS Rectifiers

November 1, 2002

Author(s)

Ranbir Singh, D C. Capell, Allen R. Hefner Jr., Jih-Sheng Lai, John W. Palmour

Radiolytic Dechlorination of Polychlorinated Biphenyls in Transformer Oil and in Marine Sediment

November 1, 2002

Author(s)

M Chaychian, C A. Jones, Dianne L. Poster, Joseph Silverman, Pedatsur Neta, Robert E. Huie, M I. Al-Sheikhly

Radiolytic dechlorination of PCBs in transformer oil and in marine sediments has been studied. At low PCB concentrations, complete degradation of the PCBs in...

Fine Particulate Matter Source Attribution for Southeast Texas Using ¹⁴C/¹³C Ratios

November 1, 2002

Author(s)

K R. Lemire, D T. Allen, George A. Klouda, C. W. Lewis

Radiocarbon analyses of fine particulate matter samples collected during the summer of 2000 in southeast Texas indicate that a substantial fraction of the...

Comparison of Experimental and Theoretical Scanning Capacitance Microscope Signals and Their Impact on the Accuracy of Determined Two-Dimensional Carrier Profiles

October 30, 2002

Author(s)

Joseph Kopanski, Jay F. Marchiando, Brian G. Rennex

Value Assignment of Nutrient Concentrations in Standard Reference Material 2384 Baking Chocolate

October 25, 2002

Author(s)

Katherine E. Sharpless, Jeanice M. Brown Thomas, Bryant C. Nelson, C. S. Phinney, John R. Sieber, Laura J. Wood, James H. Yen, D W. Howell

Via Filling by Electrodeposition: Superconformal Silver and Copper and Conformal Nickel

October 24, 2002

Author(s)

Daniel Josell, B C. Baker, C Witt, Daniel Wheeler, Thomas P. Moffat

This paper presents the first demonstration of superconformal deposition of silver in vias. The observed experimental fill behavior is compared with predictions...

Development of High Throughput Methods for Polymer Nanocomposite Research

October 22, 2002

Author(s)

Jeffrey W. Gilman, Rick D. Davis, Marc R. Nyden, Takashi Kashiwagi, John R. Shields, W -. Demory

This chapter will present an overview of the development of two high throughput (HT) methods: 1) preparation of formulated polymer libraries using extrusion, 2)...

Stiffness and Failure Behavior of Model Hybrid Composites

October 21, 2002

Author(s)

Donald L. Hunston, Walter G. McDonough

Many applications are exploring the use of hybrid composites; i.e., polymers reinforced with two different types of fibers, because such systems can have a...

Round Robin Assessment of the Single Fiber Fragmentation Test

October 21, 2002

Author(s)

M J. Rich, L T. Drzal, Donald L. Hunston, Gale A. Holmes, Walter G. McDonough

The Versailles Project on Advanced Materials and Standards (VAMAS) was established following an economic summit meeting in 1982 held at Versailles by the Heads...

Multidimensional, Closed-Form Analytic Expressions for Mobilities in Ga_1-xAl_xAs Heterostructures

October 15, 2002

Author(s)

Herbert S. Bennett

A significant, practical challenge, which arises in developing computationally efficient physical models for use in computer simulations of microelectronic and...

Structure¿Function Relationships in High-Density Octadecylsilane Stationary Phases by Raman Spectroscopy: 2. Effect of Common Mobile-Phase Solvents

October 8, 2002

Author(s)

M W. Ducey, C J. Orendorff, J E. Pemberton, Lane C. Sander

Studies of group velocity reduction and coherent pulse regeneration with and without adiabatic approximation,

October 4, 2002

Author(s)

M G. Payne, Lu Deng, Charlene E. Schmitt, S Anderson

An Analysis of the Fiber-Fiber Interactions Using the Fragmentation Test and Optical Coherence Tomography

October 1, 2002

Author(s)

Walter G. McDonough, Gale A. Holmes, Joy P. Dunkers

Multi-fiber model composites are being used to conduct fundamental studies into the nucleation of failure in fibrous composites. Current results have revealed...

The Advanced Technology Program: A Private-Public Partnership for Early Stage Technology Development

October 1, 2002

Author(s)

C Chang, F A. Moris, Andrew J. Wang

The Advanced Technology Program (ATP) supports early stage technology development efforts by U.S. companies. The ATP provides funding support to high-risk R&D...

Nanopowder Characterization: Challenges and Future Directions

October 1, 2002

Author(s)

Ajitkumar Jillavenkatesa, J F. Kelly

This manuscript summarizes the proceedings and conclusions of a workshop organized to address issues associated with particle size and size distribution...

Finite Element and Plate Theory Methods for Modeling Acoustic Emission Waveforms

October 1, 2002

Author(s)

W H. Prosser, Marvin A. Hamstad, John M. Gary, Agnes O'Gallagher

A comparison was made between two approaches to predict acoustic emission waveforms in thin plates. A normal mode solution method for Mindlin plate theory was...

Was this page helpful?