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Journals

An Overview and Analysis of PDA Forensic Tools

April 2, 2005

Author(s)

Wayne Jansen, Richard Ayers

Mobile handheld devices are becoming evermore affordable and commonplace in society. When they are involved in a security incident or crime, forensic...

Refractometry Using a Helium Standard

April 1, 2005

Author(s)

Jack A. Stone Jr., Alois Stejskal

The refractive index of helium at atmospheric pressure can be calculated from first principles with a very low uncertainty, on the order of 10^-10. Furthermore...

Study of a Dissipative Particle Dynamics Based Approach for Modeling Suspensions

April 1, 2005

Author(s)

Nicos Martys

In this paper, a dissipative particle dynamics (DPD)-based approach for modeling suspensions is examined. A series of tests are applied comparing simulation...

Development and Certification of NIST Standard Reference Materials for Relative Raman Intensity Calibration

April 1, 2005

Author(s)

E S. Etz, Steven J. Choquette, Wilbur S. Hurst

In the practice of analytical Raman spectroscopy, it becomes increasingly important to employ a procedure for the correction of the relative intensity of Raman...

Prediction and Three-Dimensional Monte-Carlo Simulation for Tensile Properties of Unidirectional Hybrid Composites

April 1, 2005

Author(s)

Martin Y. Chiang, Xianfeng Wang, Carl R. Schultesiz

A three-dimensional fiber tow-based analytical model incorporating shear-lag theory and a statistical strength distribution has been used to simulate the...

The OATS Method Revisited

April 1, 2005

Author(s)

Christopher L. Holloway, Perry F. Wilson, Robert German

Open area test sites (OATS) or equivalent semi-anechoic chambers are the most commonly used sites for EMC emissions tests. This article discusses the origins of...

Precision Measurements of AC Josephson Voltage Standard Operating Margins

April 1, 2005

Author(s)

Charles J. Burroughs, Samuel P. Benz, Paul D. Dresselhaus, Yonuk Chong

Recent advances in circuit design and fabrication of superconducting integrated circuits have enabled us to demonstrate an ac Josephson voltage standard (ACJVS)...

2.6 V high-resolution programmable Josephson voltage standard circuits using double-stacked MoSi2-barrier junctions

April 1, 2005

Author(s)

Yonuk Chong, Charles J. Burroughs, Paul D. Dresselhaus, Nicolas Hadacek, Hirotake Yamamori, Samuel P. Benz

Using a new circuit design and double-stacked junction technology we have demonstrated fully functional high-resolution programmable voltage standard chips with...

Progress on Johnson Noise Thermometry using a Quantum Voltage Noise Source for Calibration

April 1, 2005

Author(s)

Sae Woo Nam, Samuel P. Benz, Paul D. Dresselhaus, Charles J. Burroughs, Weston L. Tew, D. R. White, John M. Martinis

We describe our progress towards a high-precision measurement of temperature using Johnson noise. Using a Quantized Voltage Noise Source (QVNS) based on the...

Scanning Electron Microscope Dimensional Metrology Using a Model-Based Library

April 1, 2005

Author(s)

John S. Villarrubia, Andras Vladar, Michael T. Postek

The semiconductor electronics industry places significant demands upon secondary electron imaging to obtain dimensional measurements that are used for process...

International Comparisons of Femtosecond Laser Frequency Combs

April 1, 2005

Author(s)

Long-Sheng Ma, Zhiyi Bi, A Bartels, Lennart Robertsson, Massimo Zucco, Robert Windeler, G Wilpers, Christopher W. Oates, Leo W. Hollberg, Scott A. Diddams

Two types of international comparisons of femtosecond laser frequency combs have been performed in France and the USA. Five combs were involved in the...

Manipulating Cell Adhesion on Gradient Poly(2-Hydroxyethyl Methacrylate)-Grafted Surfaces

April 1, 2005

Author(s)

Ying Mei, Tao Wu, Chang Xu, K J. Langenbach, John T. Elliott, B D. Vogt, Kathryn L. Beers, Eric J. Amis, N Washburn

In this study, a simple and versatile method was developed to prepare the low grafting density initaitor gradient, which was combined with surface initiated...

Chemical Imaging of Heterogeneous Polymeric Materials With Near-Field IR Microscopy

April 1, 2005

Author(s)

Chris A. Michaels, D B. Chase, Stephan J. Stranick

The development of techniques to probe spatial variations in chemical composition on the nanoscale continues to be an important area of research in the...

Microfluidic Platform for the Generation of Organic-Phase Microreactors

April 1, 2005

Author(s)

Zuzanna T. Cygan, J Cabral, Kathryn L. Beers, Eric J. Amis

Rapid prototyping photolithography of a thiolene based resin was used to fabricate microfluidic devices stable to aliphatic and aromatic organic solvents. The...

Combinatorial Approach to the Edge Delamination Test for Thin Film Reliability - Adaptibility and Variability

April 1, 2005

Author(s)

Martin Y. Chiang, R Song, A J. Crosby, Alamgir Karim, C. K. Chiang, Eric J. Amis

In this study, a high-throughput combinatorial approach to edge delamination test is proposed to map the failure of adhesion as a function of both temperature...

Synthesis and Characterization of Methacrylate Derivatives of Oligo-Ether Carbonate Diols

April 1, 2005

Author(s)

S Bencherif, K S. Wilson, Elizabeth Wilder, Joseph M. Antonucci

Dimethacrylate monomers of several types are widely used in preventative and restorative dental applications. One such monomer that ushered in the modern era of...

Assessment of the Role of Filler Size in Amorphous Calcium Phosphate Filled Methacrylate Dental Composites (Poster)

April 1, 2005

Author(s)

Joseph M. Antonucci, Drago Skrtic

The goal of this study was to assess the effects of the ACP s filler particle size on the physicochemical and mechanical properties of EBPADMA-based composites...

Genetic Cellular Responses to Tyrosine-Derived Polycarbonate Blends

April 1, 2005

Author(s)

L A. Bailey, Matthew Becker, James A. Cooper, J Kohn, Eric J. Amis

The evaluation and identification of detrimental interactions between biological species and synthetic surfaces is a daunting challenge as the number of...

Physical Properties of Composite Bone Grafts Consisting of Calcium Phosphate Cement and Chondroitin Sulfate (Poster)

April 1, 2005

Author(s)

Francis W. Wang, S Hirayama, James H. Yen, Shozo Takagi

Calcium phosphate cement (CPC), consisting of tetracalcium phosphate (TTCP) and dicalcium phosphate anhydrous (DCPA), sets by reacting with water to form...

Melting Investigation of the System BaF₂-BaO-1/2Y₂O₃-CuO_x-H₂O

April 1, 2005

Author(s)

Winnie K. Wong-Ng, Lawrence P. Cook, J Suh, Igor Levin, Ron Feenstra

Lateral Deformation of Diffusion Couples

April 1, 2005

Author(s)

William J. Boettinger, Geoffrey B. McFadden, Sam R. Coriell, R F. Sekerka, James A. Warren

A model is proposed to describe the shape change (displacement field) of a binary diffusion couple when the intrinsic (lattice) diffusivities of the two...

Manipulating Cell Adhesion on Gradient Poly92-Hydroxyethyl Methacrylate)--Grafted Surfaces

April 1, 2005

Author(s)

Ying Mei, Tao Wu, Chang Xu, K J. Langenbach, John T. Elliott, B D. Vogt, Kathryn L. Beers, Eric J. Amis, N Washburn

Nanopore Formation in a Polyphenylene Low-k Dielectric

April 1, 2005

Author(s)

M S. Silverstein, Michael Shach-Caplan, Barry J. Bauer, R C. Hedden, V. J. Lee, B G. Landes

Nanometer-scale porosity is being introduced into low-k dielectrics in an attempt to achieve interlevel metal insulators with permittivities of less than 2.0...

X-Ray Absorption Imaging of High-Pressure Lighting Plasmas

April 1, 2005

Author(s)

John J. Curry, Craig J. Sansonetti

X-ray absorption has been used to image the distribution of Hg in high-pressure arc lamps used for lighting (Curry, Sansonetti, and Wang, in progress). Here...

Strongly Inhibited Transport of a Degenerate 1D Bose Gas in a Lattice

April 1, 2005

Author(s)

C Fertig, K M. O'Hara, J H. Huckans, S L. Rolston, William D. Phillips, James V. Porto

We report the observation of strongly damped dipole oscillations of a quantum degenerate 1D atomic Bose gas in a combined harmonic and optical lattice potential...

Methods to Reduce the Size-of-Source Effect in Radiation Thermometers

April 1, 2005

Author(s)

Howard W. Yoon, David W. Allen, Robert D. Saunders

A Simple Transfer-Optics System for an Extreme-Ultraviolet Synchrotron Beamline

April 1, 2005

Author(s)

Charles S. Tarrio, Steven E. Grantham, Robert E. Vest, K Liu

Beamlines at synchrotron radiation facilities often have interchangeable endstations to allow several different experiments to use the output of a single...

Stabilized frequency comb with a self-referenced femtosecond Cr:forsterite laser

April 1, 2005

Author(s)

Kyoungsik Kim, Brian R. Washburn, G Wilpers, Christopher W. Oates, Leo W. Hollberg, Nathan R. Newbury, Scott A. Diddams, Jeffrey W. Nicholson, M. F. Yan

A frequency comb is generated with a Cr:forsterite femtosecond laser, spectrally broadened through a highly nonlinear optical fiber to span from 1.0 υm to 2.2...

2-D Imaging of Temperature in CF₄ Plasmas

April 1, 2005

Author(s)

Kristen L. Steffens, Mark A. Sobolewski

Two-dimensional maps of rotational temperature were determined in CF4 plasmas using planar laser-induced fluorescence of CF. Experiments were performed in a...

Controlled Electrophoretic Patterning of Polyaniline From a Colloidal Suspension

April 1, 2005

Author(s)

Guofeng Li, C Martinez, Stephen Semancik

We present a method for controlled deposition of polyaniline from its colloidal suspension. The stable suspension of polyaniline colloids (~ 115 nm in diameter)...

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