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Journals

Committee Reports for the 88th National Conference on Weights and Measures, July 13-17, 2003, Sparks, NV

July 1, 2003

Author(s)

H V. Oppermann, Georgia L. Harris

The 88th annual meeting of the National Conference on Weights and Measures will be held in Sparks, NV, July 13-17, 2003. The theme of the Conference is Moving...

Microwave Properties of Low-Temperature Co-Fired Ceramic Systems

July 1, 2003

Author(s)

Richard G. Geyer, Liang Chai, Aziz Shaikh, Vern Stygar

Co-fired, patterned multi-layer ceramic structures can provide RF designers with the means for compact, dense microwave circuit and component design spanning...

Suppression of Surface Pattern Formation in Blend Films With Block Copolymer Surfactant

July 1, 2003

Author(s)

Li Piin Sung, Jack F. Douglas, Charles C. Han, Alamgir Karim

We show that the addition of a small concentration of a block copolymer surfactant to a thin phase separating blend film can supppress the pattern formation...

The NSF NSDL GREEN Digital Library: Green's Functions Research and Education Enhancement Network

July 1, 2003

Author(s)

Laura M. Bartolo, Aadam C. Powell, G M. Shreve, Vinod Tewary

Green's functions are powerful mathematical tools with strong pedagogical value providing not only solutions to difficult problems but also visualization for...

Suppression of Phase Separation Pattern Formation in Blend Films With Block Copolymer Compatibilizer

July 1, 2003

Author(s)

Li Piin Sung, Jack F. Douglas, Charles C. Han, Alamgir Karim

We show that the addition of a small concentration of a block copolymer surfactant to a thin phase separating blend film can suppress the pattern formation that...

Suppression of Capillary Instability of a Polymeric Thread Via Parallel Plate Confinement

July 1, 2003

Author(s)

Y Son, Nicos Martys, John G. Hagedorn, Kalman D. Migler

We investigate the stability of a polymer thread imbedded in a matrix that is confined between two parallel plates. Utilizing a combination of experiments...

Cosolvent-assisted Spray Pyrolysis for the Generation of Metal Particles

July 1, 2003

Author(s)

Valeri I. Babushok, S H. Ehrman, Thomas Germer, Jae H. Kim, George W. Mulholland

A co-solvent assisted spray pyrolysis process was developed for the formation of pure metal particles from metal salt precursors without the direct addition of...

The Detection and Sizing of Flaws in Components From the Hot-End of Gas Turbines Using Phase Contrast Radiography: A Feasibility Study

July 1, 2003

Author(s)

J Thornton, P J. McMahon, B E. Allman, J E. Murphy, K A. Nugent, David L. Jacobson, Muhammad D. Arif, S. A. Werner

In this paper we present a feasibility study of the use of phase contrast radiography in the examination of components from the hot-section of gas turbine...

Monte Carlo Modeling of an Integrating Sphere Reflectometer

July 1, 2003

Author(s)

A Prokhorov, Sergey Mekhontsev, Leonard Hanssen

The Monte Carlo method has been applied to numerical modeling of an integrating sphere designed for hemispherical-directional reflectance factor measurements...

Nanoscale Oxidation of Zirconium Surfaces: Kinetics and Mechanisms

July 1, 2003

Author(s)

Natalia Farkas, Li Zhang, E A. Evans, R Ramsier, John A. Dagata

We show that AFM-induced oxide features can be reproducibly formed on both Zr and ZrN surfaces, and that the growth rate decreases rapidly with increasing time...

Response of Chromium-Doped Alumina Screens to Soft X-Rays Using Synchrotron Radiation

July 1, 2003

Author(s)

James K. McCarthy, Uwe Arp, A Baciero, B Zurro, B A. Karlin

We have measured the response of chromium-doped alumina screens to soft x-ray radiation and derived quantum efficiency curves for the energy range from 2.5 keV...

Rotational Spectroscopy of Vibrationally Excited States by Infrared-Fourier Transform Microwave-Microwave Triple-Resonance Spectroscopy

July 1, 2003

Author(s)

K O. Douglass, J C. Keske, F S. Rees, K Welch, H S. Yoo, Brooks H. Pate, I Leonov, R D. Suenram

A Fourier transform microwave (FTMW) spectroscopy technique for measuring the rotational spectra of vibrational excited states is demonstrated. A pulsed...

Terahertz Spectroscopy of Short-Chain Polypeptides

July 1, 2003

Author(s)

M R. Kutteruf, Craig Brown, L K. Iwaki, M B. Campbell, Timothy M. Korter, Edwin J. Heilweil

Terahertz (THz) absorption and neutron vibrational spectra for solid-phase short-chain peptide sequences at 77 K and 298 K are reported. We demonstrate that a...

High-frequency noise measurements in spin-valve Devices

July 1, 2003

Author(s)

N. A. Stutzke, S. L. Burkett, Stephen E. Russek

High-frequency magnetic noise in magnetoresistive devices being developed for read-sensor and magnetic random access memory applications may present fundamental...

In-situ conductance characterization of Fe/Ag multilayer contacts on GaAs

July 1, 2003

Author(s)

Dustin Hite, Stephen E. Russek, David P. Pappas

Electrical transport characteristics for epitaxially grown Ag/Fe/Ag multilayers on GaAs(100) and GaAs(110) have been studied under various growth conditions...

Formation of a Surface Quantum Dot Near Laterally and Vertically Neighboring Dots

July 1, 2003

Author(s)

B Yang, Vinod Tewary

Elastic energy release rate (EERR) of a surface quantum dot (QD) near laterally and vertically neighboring seed QDs in a linear anisotropic elastic substrate...

Characterization of Chinese Ink in Size and Surface

July 1, 2003

Author(s)

J R. Swider, Vincent A. Hackley, J Winter

Chinese lnk, a mixture of soot and animal glue, has been used in East Asia for centuries as the sole black paint of choice. The combination of animal glue and...

Ferroelectric Phase Transitions in Nano-Scale Chemically Ordered PbSc_0.5Nb_0.5O₃ Using a First-Principles Model Hamiltonian

July 1, 2003

Author(s)

U Waghmare, Eric J. Cockayne, Benjamin P. Burton

fects of chemical order, disorder, short range order, and anti-phase boundaries on phase transitions and dielectric properties of PBSc 1/2Nb 1/2O 3 are studied...

MALDI-TOF Mass Spectral Characterization of Covalently-Cationized Polystyrene

July 1, 2003

Author(s)

Sheng Lin-Gibson, S Bencherif, Kathryn Beers, H M. Byrd

Bromine terminated, controlled molecular mass polystyrene with narrow polydispersity (Mn 40 000 g/mol, PD = 1.08) was prepared by atom transfer radical...

A Kurtosis-Based Statistical Measure for Two-Dimensional Processes and Its Applications to Image Sharpness

June 30, 2003

Author(s)

Nien F. Zhang, Andras Vladar, Michael T. Postek, Robert D. Larrabee

Fully automated or semiautomatic scanning electron microscopes (SEM) are now commonly used in semiconductor production and other forms of manufacturing. It is...

Direct measurement of polarization resolved transition dipole moment in InGaAs/GaAs quantum dots

June 23, 2003

Author(s)

Kevin L. Silverman, Richard P. Mirin, Steven T. Cundiff, Andrew G. Norman

The propagation of optical pulses resonant with the ground-to-excited state transition of InGaAs quantum dots is investigated. Analysis of low intensity...

Magneto-optic effects in spin-injection devices

June 23, 2003

Author(s)

Steve Ruggiero, Anthony Williams, Carol Tanner, S. Potashnik, John M. Moreland, William Rippard

The magneto-optic properties of semi-transparent ferromagnetic films are presented in the context of ferromagnet/GaAs spin-injection devices. We have measured...

A Multiblock Technique for Simulating Fire and Smoke Spread in Large Complex Enclosures

June 21, 2003

Author(s)

Kuldeep R. Prasad, G P. Patnaik, Ravinder Nath

Several recent developments in computational techniques have been combined todevelop a tool for simulating the reactive flow field inside large complex...

Direct Observation of De-Mixing in a Ceramic Metal-Halide Lamp Using High Energy X-Ray Induced Fluorescence

June 18, 2003

Author(s)

John J. Curry, H G. Adler, W -. Lee, S Shastri

Number densities of the elemental constituents in a ceramic metal-halide high intensity discharge lamp have been obtained with x-ray induced fluorescence. Hg...

Network Communications for Weld Cell Integration - Status of Standards Development

June 18, 2003

Author(s)

William G. Rippey

Network technology is being used more and more to replace direct wired links to integrate equipment components of automated and semi-automated welding systems...

Direct Observation of De-Mixing in a Ceramic Metal-Halide Arc Lamp

June 18, 2003

Author(s)

John J. Curry, H G. Adler, S Shastri, W -. Lee

De-mixing of additives in a vertically-operated DyI 3-CsI-Hg ceramic metal halide arc lamp has been observed by examining the ratios of absolute elemental...

Velocity Fluctuations in a Steadily Sheared Model Foam

June 18, 2003

Author(s)

I K. Ono, S Tewari, Stephen A. Langer, A J. Liu

Numerical simulations are conducted to calculate velocity fluctuations in a simple two-dimensional model of foam under steady shear. The width of the velocity...

Durability Gap Analysis for Fiber-Reinforced Polymer Composites in Civil Infrastructure

June 18, 2003

Author(s)

V M. Karbhari, Donald L. Hunston, B Benmokrane, T Juska, Roy S. Morgan, J Lesko, U Sorathia, D R. Reynaud

The lack of a comprehensive, validated, and easily accessible data base for the durability of fiber-reinforced polymer _FRP_composites as related to civil...

Morphotropic Phase Boundary Perovskites, High Strain Piezoelectrics, and Dielectric Ceramics

June 18, 2003

Author(s)

R Guo, Winnie Wong-Ng, D Viehland, C M. Wu, K M. Nair, A S. Bhalla, D Suvorov, S I. Hirano

The content of this Ceramic Transactions volume comprises the proceedings of the Symposium on Dielectric Materials andMultilayer Electronic Devices and the...

Using Joint Time-Frequency Analysis to Enhance Time-Domain Numerical EMC Simulations

June 17, 2003

Author(s)

Robert T. Johnk, Donna Beals, David R. Novotny

This paper describes the application of joint time-frequency analysis (JTFA) to finite-difference time-domain (FDTD) simulations of several shielding structures...

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