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Displaying 43676 - 43700 of 73812

Development of a Minimal IEEE 1451.1 Model for Microcontroller Implementation

February 7, 2002
Author(s)
A Stepanenko, Kang B. Lee, R Kochan, V Kochan, A Sachenko
The IEEE 1451.1 standard was studied and analyzed for resources needed for a minimal implementation of the standard. As a result, a Minimal IEEE 1451.1 Model optimized for the 8051 series of microcontrollers is proposed. In addition, a Minimal IEEE 1451.1

Improved Thermal Stability Of Crown Ether And Imidazolium Treatments for Flame Retardant Polymer Layered-Silicate Nanocomposites

February 6, 2002
Author(s)
Jeffrey W. Gilman, Cher H. Davis, Rick D. Davis, W H. Awad, A B. Morgan, Paul C. Trulove, Hugh C. De Long, T E. Sutto, L J. Mathias, D Schiraldi
The thermal stability of the organic treatment present on a layered silicate is of utmost importance in preparing a polymer-layered silicate (clay) nanocomposite by melt processing methods. Specifically, the organic treatment must not decompose at

A Functional Basis for Engineering Design: Reconciling and Evolving Previous Efforts

February 1, 2002
Author(s)
Kristen L. Wood, RJ B. Stone, DRJ Mcadams, J Hirtz, Simon Szykman
In engineering design, all products and artifacts have some intended reason behind their existence: the product or artifact function. Functional modeling provides an abstract, yet direct, method for understanding and representing an overall product or

Analysis of Electrically-Short Dipoles with a Nonlinear Load, Revisited

February 1, 2002
Author(s)
John M. Ladbury, Dennis G. Camell
We reexamine the characteristics of electrically short dipoles with nonlinear loads and, specifically, the early work of Motohisa Kanda. Although this problem has been examined in great detail in the past, some errors have not been addressed. We describe

Applications of Computational Thermodynamics

February 1, 2002
Author(s)
J Agren, F H. Hayes, LFJ H. Hoglund, Ursula R. Kattner, B Legendre, R Schmid-fetzer
The major tools used in applying computational thermodynamics to various problems in materials science are briefly presented and several practical examples are given as illustrations. Solutions to industrial problems pertaining to the processing of and

Architectures in an XML World

February 1, 2002
Author(s)
Joshua Lubell
Extensible Markup Language (XML) developers have at their disposal a variety of tools for achieving schema reuse. An often-overlooked reuse method is the specification of architectures for creating and processing data. Experience with APEX, an architecture

Cell and DNA Standards for Medical Genetics Laboratories

February 1, 2002
Author(s)
Peter E. Barker
Standards have played a role in establishing human cytogenetic analysis as a clinical laboratory discipline from the beginning. Following implementation of basic cytogenetic techniques and discoveries of chromosomal disorders, scientific necessity inspired

Chemical Science and Technology Laboratory FY 2001

February 1, 2002
Author(s)
Hratch G. Semerjian, W Koch, Ellyn S. Beary
This report summarizes the research and services provided by the Chemical Science and Technology Laboratory of the National Institute of Standards and Technology for Fiscal Year 2001. The report includes: a general overview of the laboratory's activities

Chlorella Virus Pyrimidine Dimer Glycosylase Excises Ultraviolet Radiation- and Hydroxyl Radical-Induced Products 4,6-Diamino-5-Formamidopyrimidine and 2,6-Diamino-4-Hydroxy-5-Formamidopyrimidine from DNA

February 1, 2002
Author(s)
Pawel Jaruga, R Jabil, Amanda K. McCullough, H Rodriguez, M Miral Dizdar, R S. Lloyd
A DNA glycosylase specific for UV radiation-induced pyrimidine dimers has been identified from chlorella virus Paramecium bursaria chlorella virus-1. This enzyme (Chlorella virus Pyrimidine dimer glycosylase [cv-pdgl) exhibits a 41% amino acid identity

Combinatorial Assay of Cells on Topographically Patterned Surfaces

February 1, 2002
Author(s)
S L. Kennedy, N Washburn, A Sehgal, Alamgir Karim, Eric J. Amis
It has been well established that cell substrate topography can affect cell morphology and cell behavior. Numerous groups have demonstrated that cell alignment, anisotropic cell spreading and cell proliferation can be controlled by various topographical

Comparison of Two Code Scalability Tests

February 1, 2002
Author(s)
Gordon E. Lyon
When a computer system is expensive to use or is not often available, one may want to tune software for it via analytical models that run on more common, less costly machines. In contrast, if the host system is readily available, the attraction of

Consequence of Superfluidity on the Expansion of a Rotating Bose-Einstein Condensate

February 1, 2002
Author(s)
Mark A. Edwards, Charles W. Clark, P Pedri, L Pitaevskii, S Stringari
By solving the hydrodynamic equations of irrotational superfluids we investigate the time evolution of a rotating condensate expanding after the sudden release of the confining trap. If the condensate is initially rotating slowly its angular velocity is

Controlling Morphology During Pattern Development in Thin Film Photoresists

February 1, 2002
Author(s)
Ronald L. Jones, Eric K. Lin, Joseph~undefined~undefined~undefined~undefined~undefined Lenhart, Christopher L. Soles, Wen-Li Wu
We report on attempts to control surface morphology using current lithographic processes critical to the development of both inorganic and organic nano-structures. Bilayers of protected (base insoluble) and deprotected (base soluble) model lithographic

Data Analysis Methods for Synthetic Polymer Mass Spectrometry: Autocorrelation

February 1, 2002
Author(s)
William E. Wallace, Charles M. Guttman
Autocorrelation is shown to be useful in describing the periodic patterns found in high-resolution mass spectra of synthetic polymers. Examples of this usefulness are described for a simple linear homopolymer to demonstrate the method fundamentals, a

Dendrimer-Star Polymers: Sub-Micrometer Probe Molecules

February 1, 2002
Author(s)
R C. Hedden, Barry J. Bauer, Eric J. Amis
Dendrimers are highly branched polymers prepared by alternating addition of monomers to a multifunctional core, resulting in a layered, treelike structure. Grafting monofunctional linear polymers (arms) onto dendrimer endgroups results in hybrid copolymers

Determination of Planck Mean Absorption Coefficients for HBr, HCl, and HF

February 1, 2002
Author(s)
Stephen P. Fuss, Anthony P. Hamins
The Planck mean absorption coefficient has been calculated for HBr HCl, and HF over a temperature range from 300 K-2300 K using data from the 1996 edition of the HITRAN molecular database. Plots of ap versus temperature showed monotonically decreasing
Displaying 43676 - 43700 of 73812
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