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Journals

Measured Impact of a Rooftop Photovoltaic System

August 1, 2003

Author(s)

Arthur H. Fanney, E R. Weise, K R. Henderson

A 35-kilowatt roof top photovoltaic system has been installed at the National Institute of Standards and Technology (NIST) in Gaithersburg, Maryland. The system...

X-Ray Absorption Measurements of Water Loss from Curing Mortar and Paste Samples with and without Fly Ash

August 1, 2003

Author(s)

G S. Wojcik, K L. Feldman

Proper curing of cement-based materials will help to develop a discontinuous pore structure that will aid in extending a structure's service life by reducing...

Two New Standard Reference Materials for the Determination of Drugs of Abuse in Human Hair

August 1, 2003

Author(s)

Michael J. Welch, Lorna T. Sniegoski, Susan S. Tai

Integrated Product and Process Data for B2B Collaboration

August 1, 2003

Author(s)

Boonserm Kulvatunyou, Nenad Ivezic, R A. Wysk, Albert W. Jones

Collaborative development of engineered products in a business-to-business (B2B) environment will require more than just the selection of components from an on...

Atomic Force Acoustic Microscopy Methods to Determine Thin-Film Elastic Properties

August 1, 2003

Author(s)

Donna C. Hurley, K Shen, N Jennett, J Turner

We discuss atomic force acoustic microscopy (AFAM) methods to determine quantitative values for the elasticproperties of thin films. The AFAM approach measures...

Polyelectrolyte Effects in Model Photoresist Developer Solutions

August 1, 2003

Author(s)

Vivek M. Prabhu, Ronald L. Jones, Eric K. Lin, Wen-Li Wu

We demonstrate that the industrially relevant deprotected photoresist poly(4-hydroxy styrene) is a polyelectrolyte when dissolved in aqueous base solutions...

Silicon Wafer Thickness Variation Measurements Using the NIST Infrared Interferometer

August 1, 2003

Author(s)

Angela Davies, Tony L. Schmitz, R E. Parks, Christopher J. Evans

?creasing depths of focus, coupled with increasing silicon wafer diameters, place greater restrictions on chucked wafer flatness in photolithography processes...

High-Temperature X-Ray Diffraction Study of Phase Evolution in Ba₂YCu₃O_6+x Films Using the BaF₂ Conversion Process

August 1, 2003

Author(s)

Winnie K. Wong-Ng, Igor Levin, Mark D. Vaudin, Ron Feenstra, Lawrence P. Cook, James P. Cline

In-situ high-temperature x-ray diffraction (HTXRD) was used to study the phase formation and reaction kinetics of the Ba 2Ycu 3O 6+x (Y-213) phase using the ex...

Theroy of Strain Percolation in Metals: Mean Field and Strong Boundary Universality Class

August 1, 2003

Author(s)

R M. Thomson, Lyle E. Levine, D Stauffer

In previous papers, we have introduced a percolation model for the transport of strain through a deforming metal. In this paper, we summarize the results from...

Photopolymerization Kinetics of Methacrylate Dental Resins

August 1, 2003

Author(s)

Sabine H. Dickens, J W. Stansbury, Kwang-Woo Choi, C J. Floyd

The photopolymerization kinetics of typical dental dimethacrylate monomers were studied by differential photo-calorimetry. Increasing proportions of the low...

Radiation-Induced Nitrogen Segregation During Electron Energy Loss Spectroscopy of Silicon Oxide-Nitride-Oxide Stacks

August 1, 2003

Author(s)

Igor Levin, Richard D. Leapman, M Kovler, Y Roizin

Electron energy loss spectroscopy in a transmission electron microscope (TEM) was used to measure elemental profiles of Si, 0 and N in the SiO x/Si xN y/SiO x...

Transmission Electron Microscopy Study of a Defected Zone in GaN on a SiC Substrate Grown by Hydride Vapor Phase Epitaxy

August 1, 2003

Author(s)

Leonid A. Bendersky, Denis Tsvetkov, Y Melnik

A defected zone in the HVPE (hydride vapor phase epitaxy)-deposited GaN located near an interface with a SiC substrate was investigated by transmission electron...

Effect of Bifunctional Comonomers on Mechanical Strength and Water Sorption of Amorphous Calcium Phosphate- and Silanized Glass-filled Bis-GMA-Based Composites

August 1, 2003

Author(s)

Drago Skrtic, Joseph M. Antonucci

This study seeks to elucidate structure-property relationships in a series of unfilled dental copolymers and their composites. The copolymers/composites were...

Specular Gloss Scales Comparison Between the National Institute of Standards and Technology and the National Research Council of Canada

August 1, 2003

Author(s)

Maria E. Nadal, Joanne C. Zwinkels, M Noel

The gloss value of a test sample is determined relative to a standard, generally a polished piece of black glass. Therefore, gloss is a dimensionless quantity...

Output Coupling from a Trapped Bose-Einstein Condensate in a Vortex State

August 1, 2003

Author(s)

P B. Blakie, R J. Ballagh, Charles W. Clark

We demonstrate how a topological atom laser can be realized by output coupling a trapped vortex state with a Raman scattering process. We find a linearized...

Ion Energy Distribution and Optical Measurements in High-Density, Inductively Coupled C₄F₆ Discharges

August 1, 2003

Author(s)

Eric C. Benck, A N. Goyette, Yicheng Wang

Hexafluoro-1,3 butadiene (C,F,) is a potential new etching gas for the manufacturing ol semiconductors which has a very low global warming potential, unlike...

Ab Initio Characterization of the Weakly Bound Anions ClOO- and ArCl-

August 1, 2003

Author(s)

Karl K. Irikura

Experimental studies of the energetics and vibrational spectrum of the chloroperoxyl radical, ClOO, are contradictory. The most recent experiment accessed the...

The Poly Plot Package - Data Analysis Tools for Spectral Images

August 1, 2003

Author(s)

David S. Bright, John A. Small

One page abstract.

Combinatorial Approach for Studying the Effects of 4-Biphenyl Carboxylic Acid on Polypropylene Films

August 1, 2003

Author(s)

Marlon L. Walker, A P. Smith, Alamgir Karim

The crystallization behavior of thin polypropylene films with and without 4-biphenyl carboxylic acid as a nucleating agent was investigated using high...

UML Without Pictures

August 1, 2003

Author(s)

Conrad E. Bock

This article reviews the primary concepts of repository-centered development with the Unified Modeling Language, explaining the relation between notation...

UML 2 Activity Model Support for Systems Engineering Functional Flow Diagrams

August 1, 2003

Author(s)

Conrad E. Bock

This article compares Activity models of the Unified Modeling Language, version 2 (UML 2) [U2 Partners 2003], to a popular systems engineering (SE) flow diagram...

Process Specification Language for Project Information Exchange

August 1, 2003

Author(s)

Michael Gruninger, Ram D. Sriram, J. Cheng, K Law

There are many project scheduling and management programs employed in the construction industry. Standards-based translation is one way to achieve...

UML 2 Activity and Action Models, Part 2: Actions

August 1, 2003

Author(s)

Conrad E. Bock

This is the second in a series introducing the activity model in the Unified Modeling Language, version 2 (UML 2), and how it integrates with the action model...

A Logical Model of Conceptual Integrity in Data Integration

August 1, 2003

Author(s)

David W. Flater

Conceptual integrity is required for the result of data integration to be cohesive and sensible. Compromised conceptual integrity results in semantic faults...

Combinatorial Approach to the Edge Delamination Test for Thin Film Reliability - Concept and Simulation

August 1, 2003

Author(s)

Martin Chiang, Wen-Li Wu, J He, Eric J. Amis

A high-throughput combinatorial approach to the edge delamination test is proposed. This approach can construct the failure map as a function of temperature and...

Time-Division Superconducting Quantum Interference Device Multiplexer for Transition-Edge Sensors

August 1, 2003

Author(s)

Piet DeKorte, Joern Beyer, Steven Deiker, Gene C. Hilton, Kent D. Irwin, Michael MacIntosh, Sae Woo Nam, Carl D. Reintsema, Leila R. Vale, Martin Huber

We report on the design and performance of our second-generation 32-channel time-division multiplexer developed for the read-out of large-format arrays of...

Multihop Sensor Network Design for Wideband Communications

August 1, 2003

Author(s)

Hamid Gharavi, K Ban

This paper presents a master/slave cellular based mobile ad-hoc network architecture for multihop multimedia communications. The proposed network is based on a...

Designing Damage-Resistant Brittle-Coating Structures: II. Trilayers

August 1, 2003

Author(s)

P Miranda, Antonia Pajares, F Guiberteau, Y N. Deng, H Zhao, Brian R. Lawn

An extension of the FEA-based damage analysis for bilayers in Part I is presented for trilayers consisting of a functional outer layer on an underlying...

Designing Damage-Resistant Brittle-Coating Structures: I. Bilayers

August 1, 2003

Author(s)

P Miranda, Antonia Pajares, F Guiberteau, Y N. Deng, Brian R. Lawn

A FEA study of coating/substrate bilayers is conducted as a foundation for damage analysis. Attention is focused on the stresses along the contact axis...

Angular Response Characteristics of Ellipsoidal Radiometers

August 1, 2003

Author(s)

A V. Murthy, D P. DeWitt, Gerald T. Fraser

This paper presents an experimental study of the angular response of an ellipsoidal radiometer performed using a 25 mm diameter variable temperature blackbody...

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