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Journals

Thermophysical Properties of Gaseous Tungsten Hexafluoride From Speed-of-Sound Measurements

January 1, 2000

Author(s)

John J. Hurly

The speed of sound was measured in gaseous WF 6 using a highly precise acoustic resonance technique. The data span the temperature range from 290 to 420 K and

Ab Initio Structures of Metalloenzyme Active Sites: Applications to Metalloglutathione Transferase

January 1, 2000

Author(s)

Morris Krauss

A possible structure of the active site of a new metalloenzyme family, metalloglutathione transferase (MGT), is deduced from ab initio calculations suggested by

Quantitative Electron Probe Microanalysis of Rough, Bulk Samples

January 1, 2000

Author(s)

Dale E. Newbury

Surface roughness degrades the accuracy of quantitative electron probe x-ray microanalysis through the action of geometric effects on x-ray production and

Propargyl-Type Radicals as Precursors for Polychlorinated Aromatic Hydrocarbons During Incineration

January 1, 2000

Author(s)

Valeri I. Babushok, Wing Tsang, T Noto

A gas phase mechanism for the formation of polychlorinated benzene, in systems where chlorine concentration need not be high, is presented. The key features are

Assignment of Enzyme Substrate Specificity by Principal Component Analysis of Aligned Protein Sequences: An Experimental Test Using DNA Glycosylase Homologues

January 1, 2000

Author(s)

A Gogos, D Jantz, K. J. Tuerk, D Richardson, M. Dizdaroglu, N D. Clarke

We have studied the relationship between amino acid sequence and substrate specificity in a DNA glycosylase family by characterizing experimentally the

Isochoric p-rho-T Measurements for Binary Refrigerant Mixtures Containing Difluoromethane (R32), Pentafluoroethane (R125), 1,1,1,2-Tetrafluoroethane (R134a), and 1,1,1-Trifluoroethane (R143a) from 200 to 400 K at Pressures to 35 Mpa

January 1, 2000

Author(s)

Joe W. Magee, William M. Haynes

The p-p-T relationships were measured for binary refrigerant mixtures by an isochoric method with gravimetric determinations of the amount of substance

A to Z of Thermodynamics

January 1, 2000

Author(s)

Robert N. Goldberg

This is a book review of A to Z of Thermodynamics, by P. Perrot.

The Electron Microscope: The Materials Characterization Tool of the Millenium

January 1, 2000

Author(s)

Dale E. Newbury, D B. Williams

Transmission and scanning electron microscopes (TEM and SEM) together offer the most complete tool available for the characterization of materials. This

Experimental Test of Blind Tip Reconstruction for Scanning Probe Microscopy

January 1, 2000

Author(s)

Samuel Dongmo, John S. Villarrubia, Samuel N. Jones, Thomas B. Renegar, Michael T. Postek, Jun-Feng Song

Determination of the tip geometry is a prerequisite to converting the scanning probe microscope (SPM) from a simple imaging instrument to a tool that can

Networking of Welding Applications: A Tutorial - Knowing the Basics Behind Network Technology Will Help Users of Welding Equipment Identify Where Networks May Be Most Beneficial

January 1, 2000

Author(s)

William G. Rippey, James D. Gilsinn, L Flitter

This article describes the basics of network technology and how networks are being applied to commercial welding applications. The goal is to help non-computer

Angular Distribution of Light Scattered From a Sinusoidal Grating

January 1, 2000

Author(s)

Egon Marx, Thomas A. Germer, Theodore V. Vorburger, B C. Park

The angular distributions of light scattered by gold-coated and aluminum-coated gratings having amplitudes of ~90 nm and periods of 6.67 ¿m were measured and

Probing of Two-Dimensional Grid Patterns by Means of Camera Based Image Processing

January 1, 2000

Author(s)

Martin Schroeck, Theodore D. Doiron

Camera based probes and machine vision have found increased use in coordinate measuring machines over the past years and the calibration of artifacts for these

Predictive Model for Scanned Probe Oxidation Kinetics

January 1, 2000

Author(s)

John A. Dagata, F Perez-murano, G Abadal, K Morimoto, T Inoue, J Itoh, H Yokoyama

Previous descriptions of scanned probe oxidation kinetics involved implicit assumptions that one-dimensional, steady-state models apply for arbitrary values of

A Fast Algorithm for Determining the Gaussian Filter Mean Line in Surface Metrology

January 1, 2000

Author(s)

Y B. Yuan, X F. Qiang, Jun-Feng Song, Theodore V. Vorburger

A fast algorithm for assessing the Gaussian filtered mean line was deduced using the central limit theorem and an approximation method. This algorithm only uses

A Standards Infrastructure for the Future

January 1, 2000

Author(s)

Belinda L. Collins

This paper presents several approaches for a global standards infrastructure, from the viewpoint of the United States, and from the National Institute of

Preserving the Miracle

January 1, 2000

Author(s)

W G. Leight

This article discusses how standards are developed; the roles played by the private sector and by government, including mandates of the National Technology

Journal of Research of the National Institute of Standards and Technology

January 1, 2000

Author(s)

Dale E. Newbury, Ryna B. Marinenko

The Journal of Research of the National Institute of Standards and Technology reports NIST research and development in those disciplines of the physical and

Entanglement of Four Particles

January 1, 2000

Author(s)

C A. Sackett, D Kielpinski, B E. King, Christopher Langer, V Meyer, C J. Myatt, M A. Rowe, Q A. Turchette, Wayne M. Itano, David J. Wineland, C Monroe

Quantum mechanics allows for many-particle wavefunctions that cannot be factorized into a product of single-particle wavefunctions, even when the constituent

Sympathetic Cooling of Trapped Ions for Quantum Logic

January 1, 2000

Author(s)

D Kielpinski, B E. King, C J. Myatt, C A. Sackett, Q A. Turchette, Wayne M. Itano, C Monroe, David J. Wineland

One limit to the fidelity of quantum logic operations on trapped ions arises from heating of the ions collective modes of motion. Sympathetic cooling of the

Factors That Affect Adhesion at the Fiber-Matrix Interface in Composites

January 1, 2000

Author(s)

Gale A. Holmes, E Feresenbet, E Pohl, Walter G. McDonough, D T. Raghavan, D Thompson

The development of methods to assess adhesion at the fiber-matrix interface in composite materials has been driven primarily by the recognition that the

Thermally Induced Stress Relaxation and Densification of Spin-on-Glass Thin Films

January 1, 2000

Author(s)

C. K. Chiang, William E. Wallace, G W. Lynn, D Feiler, W. Xia

The stress-temperature relationship of silica spin-on-glass thin films on silicon wafers was studied. Upon heating the stress-temperature curves showed a

Single Fiber Composites: A New Methodology for Determining Interfacial Shear Strength

January 1, 2000

Author(s)

Gale A. Holmes, Donald L. Hunston, Walter G. McDonough, R C. Peterson

One of the critical factors controlling the long-term performance and durability of composites in structural applications is the interfacial shear strength

LCST Phase Separation in Biodegradable Polymer Blends: Poly(D,L-lactide) and Poly(ε -caprolactone)

January 1, 2000

Author(s)

J C. Meredith, Eric J. Amis

A lower critical solution temperature (LCST) phase transition is reported for blends of the biodegradable polymers poly(D,L-lactide) (PDLA) and poly(ε

Organic-Inorganic Hybrid Structures with Dendrimers: A Small Angle X-Ray Scattering Study on a Mesoscopic Model System

January 1, 2000

Author(s)

Franziska Grohn, Y A. Akpalu, Barry J. Bauer, Eric J. Amis

Poly(amidoamine) (PAMAM) dendrimers are used to create organic-inorganic hybrid colloids in aqueous solution. The formation of gold colloids upon reduction of a

Real-Time Dielectric Measurements During Extrusion of Filled Polymers

January 1, 2000

Author(s)

M M. McBrearty, Anthony J. Bur, S C. Roth

Mineral fillers are added to extend and modify physical properties of polymers. To achieve porcessing control of mixing, real-time measurements are needed

Small-Angle Neutron Scattering of Blends of Arborescent Polystyrenes

January 1, 2000

Author(s)

S M. Choi, R M. Briber, Barry J. Bauer, D W. Liu, M Gauthier

SANS Study of Poly(Benzyl Ether) Dendrimers

January 1, 2000

Author(s)

G Evmenenko, Barry J. Bauer, N Mischenko, B Forier, W Dehaen, R Kleppinger, Eric J. Amis, H Reynaers

Thermal Expansion Coefficients of Low-K Dielectric Films From Fourier Analysis of X-Ray Reflectivity

January 1, 2000

Author(s)

Charles E. Bouldin, William E. Wallace, G W. Lynn, S C. Roth, Wen-Li Wu

Blends of Fatty-Acid-Modified Dendrimers With Polyolefins

January 1, 2000

Author(s)

Barry J. Bauer, A Ramzi, D W. Liu, R L. Scherrenberg, P Froehling, J Joosten

Blends were made by solution and melt mixing fatty acid modified dendrimers with various polyolefins. Small angle neutron scattering (SANS) was used to

Circularly Polarized Light Emission in Scanning Tunneling Microscopy of Magnetic Systems

January 1, 2000

Author(s)

S Apell, David R. Penn, P Johansson

Light is produced when a scanning tunneling microscopy is used to probe a metal surface. Recent experiments on cobalt utilizing a tungsten tip found that the

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