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Displaying 39051 - 39075 of 73697

The Effect of Movement During Cure of a Silicone Sealant

March 8, 2004
Author(s)
Christopher C. White, Donald L. Hunston
Movement of the building joint sealant during cure is thought to affect the fully cured mechanical properties. To examine this potential effect, a one-part silicone sealant was cured from 10 h to 168 h after sample creation before the onset of movement

Correlation for the Second Virial Coefficient of Water

March 4, 2004
Author(s)
Allan H. Harvey, Eric W. Lemmon
A new correlation has been developed to represent the second virial coefficient of water (H2O) as a function of temperature. The formulation was fitted to experimental data, both for the second virial coefficient itself and for a quantity related to its

Crystal Structure of the Complex Between Thrombin and the Central "E" Region of Fibrin

March 2, 2004
Author(s)
I Pechik, J Madrazo, M W. Mosesson, I Hernandez, G L. Gilliland, L Medved
Non-substrate interactions of thrombin with fibrin play an important role in modulating its procoagulant activity. To establish the structural basis for these interactions, we crystallized PPACK-inhibited thrombin in complex with a fragment, Eht

A Framework for Metrics in Large Complex Systems

March 1, 2004
Author(s)
G A. Mack, K Lonergan, Jean C. Scholtz, Michelle P. Steves, C R. Hale
The Terrorism Information Awareness (TIA) was initiated by the Information Awareness Office (IAO) of the Defense Advanced Research Projects Agency (DARPA). TIA capabilities enable the detection, classification, identification, and tracking of terrorist

A Numerical Investigation of Aerosol Dynamics in a Wall-Less Reactor

March 1, 2004
Author(s)
D M. Kremer, R W. Davis, Elizabeth F. Moore, S H. Ehrman
This paper describes a numerical investigation of aerosol formation during silane decomposition in a wall-less reactor. The wall-less reactor is amenable to numerical investigation because the homogeneous chemical reactions leading to the formation of

Acoustic Loss in Langasite and Langanite

March 1, 2004
Author(s)
Ward L. Johnson, K Sudook, U Satoshi
Resonant ultrasonic loss 1/Q in plano-convex unplated Y-cut disks of langasite and langanite were measured as a function of freqeuncy and temperature with the aim of identifying dominant internal mechanisms that will degrade electronic oscillator

An Open Source Informatics System for Combinatorial Materials Research

March 1, 2004
Author(s)
Weiping Zhang, Michael J. Fasolka, Alamgir Karim, Eric J. Amis
Laboratory Research Informatics Systems (LRIS) hold great promise in streamlining research generally, and are particularly necessary for new data-intensive research strategies such as combinatorial and high-throughput approaches. In this talk, we describe

Asymmetric Energy Distribution of Interface Traps in n- & p- MOSFETs with HfO2 Gate Dielectric on Ultra-thin SiON Buffer Layer

March 1, 2004
Author(s)
Jin-Ping Han, Eric M. Vogel, Evgeni Gusev, C. D'Emic, Curt A. Richter, Da-Wei Heh, John S. Suehle
The variable rise/fall-time charge pumping technique has been used to determine the energy distribution of interface trap density (Dit) in MOSFETs with HfO2 gate dielectric grown on ultra-thin (1-2 monolayer) SiON buffer layer on Si. Our results have

Automated Composition of Conversion Software

March 1, 2004
Author(s)
David W. Flater
Given a library of converters with known behaviors, an integration engine must determine which are useful in a given scenario and produce a plan for how they can be used to achieve specified goals. This report documents the algorithm implemented by the

Brillouin Scattering Studies of Polymeric Nanostructures

March 1, 2004
Author(s)
R Hartschuh, A Mahorowala, Y Ding, J H. Roh, A Kisliuk, Alexei Sokolov, Christopher Soles, Ronald L. Jones, T J. Hu, Wen-Li Wu
Polymers are now being patterned into nanometer-sized features via optical and/or imprint lithography for a range of applications, including semiconductors, Micro-Electro- Mechanical systems (MEMS), and Nano-Electro-Mechanical systems (NEMS). In these

Card Technology Developments and Gap Analysis Interagency Report

March 1, 2004
Author(s)
William C. Barker, Deborah Howard, Timothy Grance, Levent Eyuboglu
This Card Technology Developments and Gap Analysis Interagency Report (IR) provides information regarding current technical capabilities and limitations of storage and processor cards, current user requirements for individual and integrated technologies

Cell Seeding into Calcium Phosphate Cement

March 1, 2004
Author(s)
Carl Simon Jr., William F. Guthrie, Francis W. Wang
We have sought to improve calcium phosphate cement by developing a method for seeding bone cells into the cement. Calcium phosphate cement (CPC) is a dry white powder of calcium phosphate salts that when mixed with water will react to form microcrystalline

Characterization of Poly(L-Lysine)-graft-Poly (Ethylene Glycol) Assembled Monolayers on Niobium Pentoxide Substrates Using Time-of-Flight Secondary Ion Mass Spectrometry and Multivariate Analysis

March 1, 2004
Author(s)
M S. Wagner, S Pasche, David G. Castner, M Textor
Control of protein adsorption onto solid surfaces is a critical area of biomaterials and biosensors research. Application of high performance surface analysis techniques to these problems can improve the rational design and understanding of coatings that

Continuous-Wave Terahertz Spectroscopy of Plasmas and Biomolecules

March 1, 2004
Author(s)
David F. Plusquellic, T M. Korter, Gerald T. Fraser, R J. Lavrich, Eric C. Benck, C R. Bucher, Angela R. Hight Walker, J L. Domenech
Continuous-wave linear-absorption spectroscopy based on THz radiation generated by solid-state photomixers has been applied to the investigation of the dynamics of biomolecules in polyethylene matrices and to line shape studies of HF for diagnostics of

Cost-Effective Responses to Terrorist Risks in Constructed Facilities

March 1, 2004
Author(s)
Robert E. Chapman, C J. Leng
The owners and managers of constructed facilities face the challenge of responding to potential future terrorist attacks in a financially responsible manner. The Office of Applied Economics (OAE) in the Building and Fire Research Laboratory at the National
Displaying 39051 - 39075 of 73697
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