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Displaying 39401 - 39425 of 73830

Soft X-Ray Absorption Spectroscopic Study of a LiNi 0.5 Mn 0.5 O 2 Cathode During Charge

February 1, 2004
Author(s)
W S. Yoon, Mahalingam Balasubramanian, Xiao-Qing Yang, Ziwen Fu, Daniel A. Fischer, James McBreen
Soft X-ray (200 eV to 1000 eV) absorption spectroscopy (XAS) at the O K-edge and the metal L II, III-edges, in both the fluorescence yield (FY) and the partial electron yield (PEY) mode, has been used to probe the electronic structure of electrochemically

Standards for Security Categorization of Federal Information and Information Systems

February 1, 2004
Author(s)
National Institute of Standards and Technology (NIST), Ronald S. Ross, Marianne M. Swanson
The purpose of this document is to provide a standard for categorizing federal information and information systems according to an agency's level of concern for confidentiality, integrity, and availability and the potential impact on agency assets and

Strength of Silicon Containing Nanoscale Flaws

February 1, 2004
Author(s)
Antonia Pajares, Michael Chumakov, Brian R. Lawn
A study was made of the strength of highly polished silicon surfaces after nanoindentation with a Berkovich diamond. Strengths of the indented surfaces were measured as a function of flaw size, quantified by indenter penetration. Analogous data from etched

Superfluid Atomic Fermi Gas With a Vortex

February 1, 2004
Author(s)
N Nygaard, G M. Bruun, B I. Schneider, D L. Feder, Charles W. Clark
Dilute atomic gases have become a powerful tool for studying many-body quantum mechanics. The best example of this is the achievement of Bose-Einstein condensation in 1995 in a gas of Bose atoms, a discovery which has invoked a confluence of ideas from

Superfluid-to-Mott-Insulating Transition in a One-Dimensional Atomic Gas

February 1, 2004
Author(s)
C Fertig, K M. O'Hara, J H. Huckans, James V. Porto, William D. Phillips
Over the past two decades, the Mott-insulating phase transition has received a great deal of attention as a prototypical example of a quantum phase transition in a strongly-correlated system for which quantum fluctuations drive the phase transition at zero

Surface Effects in Chemically Amplified Photoresists: Environmental Stability and Segregation

February 1, 2004
Author(s)
E Jablonski, Vivek M. Prabhu, S Sambasivan, Daniel A. Fischer, Eric K. Lin, D L. Goldfarb, M Angelopoulos, H Ito
It is well known that chemically amplified photoresists are sensitive to certain airborne molecular contaminants, notably amines, during post exposure delay, although the actual cause and specific failure mechanism are unknown. To assess the effect of low

Surface Enhanced Raman Spectroscopy in a Microfluidic Device

February 1, 2004
Author(s)
D Dunmire, D B. Romero, Guangjun Cheng, Angela R. Hight Walker
Surface enhanced Raman spectroscopy (SERS) is employed to study the solution phase vibrational structure of molecules on gold and silver colloids. Gold and silver colloids show large enhancement factors enabling sub-micromolar detection limits. Using a

Synthesis of Bioconjugated Magnetic Nanoparticles for Magneto-Raman Study

February 1, 2004
Author(s)
Guangjun Cheng, D B. Romero, D Dunmire, Angela R. Hight Walker
We are investigating the effects of an externally applied magnetic field on the structure and magnetic properties of biomolecules (DNA and proteins). A newly constructed, magneto-Raman confocal microscope system couples a cryo-magnet to a triple grating

Techniques for Measurements in Concentrated Systems

February 1, 2004
Author(s)
Vincent A. Hackley
Concentrated suspensions present a number of technical challenges for characterization and monitoring of the solid phase. Recent developments have provided the means to analyze many concentrated systems directly or at solids loadings more closely

Testing: A Key to Building Trust and Confidence in IT Systems

February 1, 2004
Author(s)
S F. Zevin
The ubiquitous computer now touches nearly every aspect of human life. The promise of information technology is improvement to the quality of life. Maintaining trust and confidence in information technology is central to keeping that promise. This is

The Miami2001 Infrared Radiometer Calibration and Intercomparison. Part I: Laboratory Characterization of Blackbody Targets

February 1, 2004
Author(s)
Joseph P. Rice, James J. Butler, B C. Johnson, P J. Minnett, K A. Maillet, T J. Nightingale, S J. Hook, A Abtahi, C J. Donlon, I J. Barton
The second calibration and intercomparison of infrared radiometers (Maiami2001) was held at the University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) during May-June 2001. The participants were from several groups involved with

Towards reproducible SCM Image Interpretation

February 1, 2004
Author(s)
Joseph Kopanski, Jay F. Marchiando, Brian G. Rennex, David S. Simons, R P. Chaudhury
SCM images, and the two-dimensional (2-D) dopant profiles extracted from them, show poor reproducibility from laboratory to laboratory. Major factors contributing to SCM image variability include: poor sample surface and oxide quality, excess carrier

Ultra-Thin gate Oxide Breakdown: A Failure that we can live with?

February 1, 2004
Author(s)
John S. Suehle
As gate oxides are scaled down in thickness in current technologies, the breakdown event caused by TDDB becomes 'softer'. In current technologies where the oxide thickness is less than 2 nm, the breakdown event has become so soft that in some cases circuit

Water Absorption in Thin Photoresist Films

February 1, 2004
Author(s)
B D. Vogt, Christopher L. Soles, Ronald L. Jones, Vivek M. Prabhu, Wen-Li Wu, Eric K. Lin
In this work, we quantify deviations in the moisture absorption into model photoresist films upon changing thickness. Both the thermodynamics and kinetics of the absorption process are examined. Water in the resist films has been shown to have a

XML Schema Development Guidelines. Version 1.0

February 1, 2004
Author(s)
Mark E. Palmer, M Burns, T L. Teague
These guidelines summarize the background, rationale and guiding principles that the FIATECH program is using to produce XML domain schemas for automating information exchanges in the capital facilities industries and over the life cycle of equipment used

Applications of Sinkhorn Balancing: The Monomer-Dimer Problem

January 30, 2004
Author(s)
Isabel M. Beichl, Francis Sullivan
We describe a general Monte Carlo technique based on work of Knuth for estimating the size of trees in backtrack algorithms. This method, based on importance sampling, is used to estimate the number of partial and complete matchings in a bipartite graph

Micromachined Alkali Atom Vapor Cells for Chip-Scale Atomic Clocks

January 30, 2004
Author(s)
Li-Anne Liew, Svenja A. Knappe, John M. Moreland, Hugh Robinson, Leo W. Hollberg, John Kitching
This paper describes the fabrication of chip-sized alkali atom vapor cells, for use in highly miniaturized atomic frequency references, using silicon micromachining and anodic bonding technology. The cells consist of silicon cavities with internal volume
Displaying 39401 - 39425 of 73830
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