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Journals

Ultrasonic Technology: Prospects for Improving Flow Measurements and Standards

January 1, 1999

Author(s)

Tsyh Tyan Yeh, G E. Mattingly

Ultrasonic technology is evolving rapidly. It offers prospects for improving flow measurements, for serving as transfer standards, and possibly for serving as a...

Boron Substrates for the X-Ray Microanalysis of Particles

January 1, 1999

Author(s)

Eric S. Windsor, Dale E. Newbury, J Kessler

Boron is available commercially as high purity (> 0.995) crystalline pieces. Using metallographic sample preparation techniques, these crystalline pieces can be...

Preliminary Results from Interlaboratory Comparisons of Sir Speed Measurements Between 0.3 and 15 m/s

January 1, 1999

Author(s)

J. M. Hall, Vern E. Bean, G E. Mattingly

NIST served as the pilot laboratory for comparisons of air speed measurement capabilities in thirteen participating laboratories in the range of 0.3 to 15 m/s...

Solid State Gas Microsensors for Environmental and Industrial Monitoring

January 1, 1999

Author(s)

R M. Walton, Richard E. Cavicchi, Stephen Semancik, B Panchapakesan, Don L. DeVoe, M I. Aquino-Class, J D. Allen, John S. Suehle

We describe solid state gas microsensor array technology for real-time, low-cost environmental and industrial monitoring. The four-element, surface...

Processing Methods for Selected Area Film Deposition and Preparation on Microsensor Platforms Using Thermal and Potential Control

January 1, 1999

Author(s)

R M. Walton, Richard E. Cavicchi, C Kendrick, B Panchapakesan, Stephen Semancik

In previous work we have used Si-based

Microanalytical Techniques for the Determination of Carbonaceous Aerosols in Remote Air and Snow Samples

January 1, 1999

Author(s)

J D. Kessler, Lloyd A. Currie, Dale E. Newbury, Eric S. Windsor

Remote ice core, snow, and air filter samples can potentially profile past and present atmospheric characteristics, acting as media to preserve populations of...

Influence of Nanometer-Scale Multilayered Thin Films on Fatigue Crack Initiation

January 1, 1999

Author(s)

Mark R. Stoudt, Richard E. Ricker, R C. Cammarata

Fatigue crack initiation in initially smooth, defect free samples of ductile metals almost always occurs at the free surface as a result of surface roughening...

Optical Absorption, Raman, and Photoluminescence Excitation Spectroscopy of Inhomogeneous InGaN Films

January 1, 1999

Author(s)

Lawrence H. Robins, Albert J. Paul, C A. Parker, J C. Roberts, S M. Bedair, E L. Piner, N A. El-Masry

In xGa 1-xN films with x=0.06 to x=0.49 were characterized by optical transmittance, Raman, and photoluminescence excitation spectroscopies. Previous...

The Ten Classes of Polymeric Phase Transitions: Their Use as Models for Self-Assembly

January 1, 1999

Author(s)

Edmund A. DiMarzio

A brief overview of the 10 classes of polymer phase transitions is given. In each case the basic physics underlying the transition is given. Special attention...

Spatial Correlations of Mobility and Immobility in a Glassforming Lennard-Jones Liquid

January 1, 1999

Author(s)

C Donati, S C. Glotzer, P H. Poole, W Kob, S J. Plimpton

Using extensive molecular dynamics of an equilibrium, glass-forming Lennard-Jones mixture, we characterize in detail the local atomic motions. We show that...

Effect of Solvent Quality on the Molecular Dimensions of PAMAM Dendrimers

January 1, 1999

Author(s)

A Topp, Barry J. Bauer, D A. Tomalia, Eric J. Amis

Diffraction Line-Shape Analysis of Poly(3-Dodecylthiophene): a Study of Layer Disorder Through the Liquid Crystalline Polymer Transition

January 1, 1999

Author(s)

T J. Prosa, J Moulton, A Heeger, M J. Winokur

Using Polarized Neutrons to Determine the Phase of Reflection From Thin Film Structures

January 1, 1999

Author(s)

A Schreyer, Charles F. Majkrzak, Norman F. Berk, H Grull, Charles C. Han

Exchange of C-16-Ceramide Between Phospholipid Vesicles

January 1, 1999

Author(s)

Carl G. Simon Jr., P W. Holloway, A R. Gear

Dimethacrylate Monomers With Varied Fluorine Contents and Distributions

January 1, 1999

Author(s)

J W. Stansbury, Joseph M. Antonucci

Vorticity Elongation in Sheared Polymeric Emulsions

January 1, 1999

Author(s)

Erik K. Hobbie, Kalman D. Migler

Stroboscopic video microscopy is used to study the shear-induced deformation of micron-size polystyrene droplets dispersed in a continuous phase of polyethylene...

Excitation of Surface Deformation Modes of a Phase Separating Polymer Blend on a Patterned Substrate

January 1, 1999

Author(s)

G Nisato, B D. Ermi, Jack F. Douglas, Alamgir Karim

The phase separation kinetics of ultrathin deuterated poly(styrene)/poly(butadiene) polymer blend films spun cast onto striped self-assembled monolayer (SAM)...

Quantifying Spatially Heterogeneous Dynamics in Computer Simulations of Glass-Forming Liquids

January 1, 1999

Author(s)

S C. Glotzer, C Donati

We examine the phenomenon of dynamical heterogeneity in computer simulations of an equilibrium, glass-forming liquid. We describe several approaches to quantify...

Integral Equation Approach to Condensed Matter Relaxation

January 1, 1999

Author(s)

Jack F. Douglas

A model of relaxation in supercooled and polymer liquids is developed starting from an integral equation describing relaxation in liquids near thermal...

The Tau-Effective Paradox Revisited: an Extended Analysis of Kovacs' Volume Recovery Data on Poly(Vinyl Acetate)

January 1, 1999

Author(s)

G B. McKenna, M Vangel, Andrew L. Rukhin, Stefan D. Leigh, B Lotz, C Straupe

A Fast Method of Transforming Relaxation Functions into the Frequency Domain

January 1, 1999

Author(s)

F I. Mopsik

Ultraviolet Radiometry With Synchrotron Radiation and Cryogenic Radiometer

January 1, 1999

Author(s)

Ping-Shine Shaw, Keith R. Lykke, Thomas R. O'Brian, Arp Uwe, H H. White, Thomas B. Lucatorto, J L. Dehmer, Albert C. Parr, R Gupta

The combination of a cryogenic radiometer and synchrotron radiation enablesdetector scale realization in spectral regions that are otherwise difficult to access...

Global Analysis of a-, b- and c-Type Transitions Involving Tunneling Components of K = 0 and 1 States of the Methanol Dimer

January 1, 1999

Author(s)

C Lugez, Francis J. Lovas, Jon T. Hougen, N Ohashi

Spectral data on K = 0 and 1 levels of the methanol dimer available from previous and present Fourier transform microwave measurements have been interpreted...

Tomographic Reconstruction of an Integrated Circuit Interconnect

January 1, 1999

Author(s)

Zachary H. Levine, A R. Kalukin, S P. Frigo, I McNulty, M Kuhn

An Al-W-silica integrated circuit interconnect sample was thinned to several micro υ and scanned across a 200 nm focal spot of a Fresnel zone plate operating at...

Calculation of the Electron Self Energy for Low Nuclear Charge

January 1, 1999

Author(s)

U Jentschura, Peter J. Mohr, G Soff

We present a nonperturbative numerical evaluation of the one-photon electron self-energy for hydrogen like ions with low nuclear charge numbers Z = 1 to 5. Our...

Identification of Materials in Integrated Circuit Interconnects Using X-Ray Absorption Near Edge Spectroscopy

January 1, 1999

Author(s)

Zachary H. Levine, Bruce D. Ravel

Most integrated circuit interconnects are principally composed of a few metals, including aluminum alloyed with copper, tungsten, titanium, A1 3 Ti, and A1 2Cu...

Correlated Photon Based Metrology Without Absolute Standards

January 1, 1999

Author(s)

Alan L. Migdall

Pairs of photons produced two at a time via optical parametric down-conversion have proved to be a useful tool for metrology. The status of three such...

Mean-Field Theories, Their Weaknesses and Strength

January 1, 1999

Author(s)

Johanna Levelt Sengers

Within a historical context, an evaluation of mean-field theory is given in its application to fluids and fluid mixtures. The way mean-field equations such as...

Voids and Clusters in Expanded Water

January 1, 1999

Author(s)

Raymond D. Mountain

Molecular dynamics simulations of water at elevated temperatures and reduced densities relative to ambient conditions are used to examine the size distributions...

Manufacturer's CORBA Interface Testing Toolkit: Overview

January 1, 1999

Author(s)

David W. Flater

The Manufacturer's CORBA Interface Testing Toolkit (MCITT)is a software package that supports testing of CORBA components and interfaces. It simplifies the...

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