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NIST Authors in Bold

Displaying 38976 - 39000 of 73697

Interstellar Antifreeze: Ethylene glycol

April 1, 2004
Author(s)
J M. Hollis, Francis J. Lovas, P R. Jewell, L H. Coudert
Interstellar ethylene glycol (HOCH2CH2OH) has been detected in emission toward the Galactic center source Sagittarius B2( N-LMH) by means of several millimeter-wave rotational torsional transitions of its lowest energy conformer. The types and kinds of

Intrinsic Standards for UV/Visible Spectrophotometry

April 1, 2004
Author(s)
John C. Travis, David L. Duewer, Marc L. Salit
The 21st century global marketplace and international performance standards provide a steady demand for fit-for-purpose reference materials. An efficient system for the delivery of reference materials to end-users begins with responsive and competitive

Material Modeling and Experimental Study of Serrated Chip Morphology

April 1, 2004
Author(s)
T Mabrouki, Laurent Deshayes, J F. Rigal, Kevin K. Jurrens, Robert W. Ivester
Machining chip morphology stems from mechanical, thermal, and chemical phenomena. Chip morphology prediction depends on a fundamental understanding of these phenomena and is industrially important for cutting force prediction and surface integrity control

Multiplexed Assays for Evaluation of Y-SNP Markers in U.S. Populations

April 1, 2004
Author(s)
Peter Vallone, John Butler
Genetic markers located on the Y chromosome are of increasing importance in human identity testing. In an effort to evaluate the forensic utility of Y chromosome single nucleotide polymorphism (SNP) markers, we constructed several novel multiplex allele

NEMI's Lead-Free Alloy

April 1, 2004
Author(s)
A -. Rae, C A. Handwerker
Invited article in Circuits Assembly magazine that discusses how the NEMI Project's extensive characterization of the NEMI Sn-Ag-Cu alloy applies to other commercial Sn-Ag-Cu alloys being used in other parts of the world.

Nucleation and Polycrystalline Solidification in Binary Phase Field Theory

April 1, 2004
Author(s)
L Granasy, T Pusztai, T Borzsonyi, James A. Warren, B Kvamme, P F. James
We present a phase field theory for the nucleation and growth of one and two-phase crystals solidifying with different crystallographic orientations in binary alloys. The accuracy of the model is tested for crystal nucleation in single-component systems

Phase-Field Modeling for Eutectic Solidification

April 1, 2004
Author(s)
Jonathan E. Guyer, William J. Boettinger, James A. Warren, Geoffrey B. McFadden
A diffuse interface (phase field) model for a simple electrochemical system is developed. We describe the minimal set of components needed to model an electrochemical interface and present a Lagrangian derivation of te governing equations. With a simple

Phase-Field Models for Eutectic Solidification

April 1, 2004
Author(s)
D J. Lewis, T Pusztai, L Granasy, James A. Warren, William J. Boettinger
This article discusses two methods for modeling eutectic solidification using the phase-field approach. First, the multi-phase field model is used to study the three-dimensional morphological evolution of binary eutectics. Performing the calculations in

Process Control and Logistics Management for Mass Customization Manufacturing

April 1, 2004
Author(s)
Guixiu Qiao, R F. Lu, Charles R. McLean
The emphasis on increasing product variety and individualization has created a strong demand for a new strategy of Mass Customization Manufacturing (MCM). A competitive and flexible manufacturing system must be developed to respond to small batches of

Radio-Frequency Glow Discharge Spectrometry A Critical Review

April 1, 2004
Author(s)
Michael R. Winchester, R Payling
This paper presents a critical review of analytical radio frequency glow discharge spectrometry (rf-GDS). The historical foundations of rf-GDS are described, and current knowledge of the fundamental physics of analytical rf glow discharges is discussed

Role of Empirical Studies Understanding and Supporting Engineering Design

April 1, 2004
Author(s)
Eswaran Subrahmanian, Ram D. Sriram, Paulien Herder, Henri Christiaans, Ralph Schneider
Study of design and norms for designing dates back 2000 years when Vitruvious first wrote his book on architectural design and prescribed what a designer ought to know and how he/she ought to behave. The perceived need to organize and systematize design

Rotational Spectra of the Diastereomers of Soman

April 1, 2004
Author(s)
R D. Suenram, R S. DaBell, Angela R. Hight Walker, D J. Lavrich, David F. Plusquellic, M W. Ellzy, J M. Lochner, L Cash, J O. Jensen, A C. Samuels
The pure rotational spectrum of the nerve agent Soman has been recorded and assigned using a pulsed molecular beam Fourier transform microwave spectrometer. The spectrum consists of transitions from two different isomers that are likely the [SS] (or [RR])

SCC Evolution of Formwork Hydraulic Pressure and Rheological Properties

April 1, 2004
Author(s)
S Amziane, Chiara C. Ferraris
An experimental investigation was performed to determine the hydraulic pressure variation of cementitious based materials (cement paste, concrete, SCC, etc.) during the plastic phase. A method based on measurements of both total lateral pressure and

Solid-Liquid Equilibrium for Non-Hydrostatic Stress

April 1, 2004
Author(s)
R F. Sekerka, John W. Cahn
We examine Gibbs' conditions for equilibrium of a non-hydrostatically stressed single component solid in equilibrium across one of its faces with a pure liquid at pressure p(superscriptF). We show that the equilibrium melting temperature T(subscriptN) for
Displaying 38976 - 39000 of 73697
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