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Conferences

Chain Conformation in Ultrathin Polymer Films

Author(s)
Ronald L. Jones, Christopher Soles, Francis W. Starr, Eric K. Lin, Joseph~undefined~undefined~undefined~undefined~undefined Lenhart, Wen-Li Wu, D L. Goldfarb, M Angelopolous
Using Small Angle Neutron Scattering (SANS), we present the first quantitative measurements of the 3-dimensional conformation of macromolecules in thin polymer

A Framework for Standard Modular Simulation

Author(s)
Charles R. McLean, Swee K. Leong
The primary reason for building manufacturing simulations is to provide support tools that aid the manufacturing deci-sion-making process. Simulations are

Binary Diffusion Coefficients for Combustion Modeling

Author(s)
William S. McGivern, Jeffrey A. Manion
Recent studies have demonstrated that combustion models can be as sensitive to the binary diffusion coefficients of the fuel species as to the kinetics of major

Calibration of Nonreciprocal Radar Systems

Author(s)
Lorant A. Muth
The calibration of nonreciprocal radars has been studied extensively. Here we present a robust calibration procedure using Fourier analysis of back-scatter data

Calibrating Photoreceiver Response to 110 GHz

Author(s)
Tracy S. Clement, Dylan F. Williams, Paul D. Hale, Juanita M. Morgan
We have measured the magnitude and phase responses of a photoreceiver to 110 GHz using a calibrated electro-optic sampling system. The frequency range of the

Composition standards for III-V semiconductor epitaxial films

Author(s)
Kristine A. Bertness, Lawrence H. Robins, J T. Armstrong, Ryna B. Marinenko, Albert J. Paul, Marc L. Salit
A program is underway at NIST to establish standard reference materials (SRMs) for the calibration of instruments used to measure the chemical composition of

Trace water detection in semiconductor-grade phosphine gas

Author(s)
Kristine A. Bertness, Susan Y. Lehman, Joseph T. Hodges, H. H. Funke, Mark W. Raynor
We are applying cavity ring-down spectroscopy (CRDS) to measure water concentrations in nitrogen and, for the first time to our knowledge, in phosphine

Ex-situ Characterization of InGaAsP

Author(s)
Alexana Roshko, Kristine A. Bertness
An interlaboratory comparison was undertaken to assess differences in X-ray and photoluminescence measurements from different laboratories. Six InGaAsP

Ultra-Wideband TEM-Horn Antenna Design using Numerical Methods

Author(s)
Chriss A. Grosvenor, David R. Novotny, Jason Veneman, Seturnino Canales
TEM, time-domain antennas are designed to reproduce accurately the time characteristics of an impulsive, incoming field. The response to the fields must be

Spherical Scanning Measurements Using Truncated Data Sets

Author(s)
Ronald C. Wittmann, Carl F. Stubenrauch, Michael H. Francis
We discuss the mitigation of truncation errors in spherical scanning measurement. The main emphasis is the spherical harmonic representation of probe

Analysis of Phase-Dependent RCS Measurements

Author(s)
Lorant A. Muth, Timothy Conn
Free space coherent radar cross section measurements on a moving target will trace a circle centered on the origin of the complex (I,Q) plane. Noise will

Simulation of SCC Flow

Author(s)
Nicos Martys, Chiara F. Ferraris
Predicting the rheological properties of concrete is essential for its optimal use in situations such as flow between rebars. The aggregate gradation and shape

Knowledge Engineering for Real Time Control

Author(s)
John Evans, Elena R. Messina, James S. Albus, Craig I. Schlenoff
The key to real-time intelligent control lies in the knowledge models that the system contains. Three main classes of knowledge are identified: parametric
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