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Conferences

Test Device Directivity for EMC Measurements

August 1, 2000

Author(s)

Galen H. Koepke, David A. Hill, John M. Ladbury

Assessing the Effects of an OATS Shelter; Is ANSI C63.7 Enough?

August 1, 2000

Author(s)

Robert T. Johnk, David R. Novotny, Claude Weil, H. W. Medley

This paper summarizes a recent measurement effort by NIST researchers at an open-area test site (OATS), operated by a large information technology equipment...

A Performance Measurement Environment for Cluster Computing

August 1, 2000

Author(s)

M M. Courson, Alan Mink, G J. Marcais, B Traverse

A number of factors promote frequent running of performance measurement codes for the evaluation and tuning of both applications and platforms. NIST is...

Cessation of Spherulitic Growth in Phase-Separating Polyolefin Blends

August 1, 2000

Author(s)

Haonan Wang, Charles C. Han

The Blends of two statistical copolymers of ethylene/hexene (PEH) and ethylene/butene (PEB) exhibit both phase separation and crystallization transitions. Using...

Shear Orientation of a Visoelastic Polymer-Clay Solution

August 1, 2000

Author(s)

G Schmidt, A Nakatani, Paul Butler, Alamgir Karim, Charles C. Han

The shear orientation of viscoelastic clay-polymer solutions was investigated by means of rheology, flow birefringence (δn) and small-angle neutron scattering...

AFM Studies of Confined Dewetting On Gradient Patterned Surfaces

August 1, 2000

Author(s)

Alamgir Karim, A Sehgal, Eric J. Amis

Spinodal dewetting of ultra thin films driven by thermal fluctuations is considered analogous to phase separation accompanied by composition fluctuations. Such...

Microcalorimeter EDS for Low Voltage Microanalysis

August 1, 2000

Author(s)

David A. Wollman, Dale Newbury, Sae Woo Nam, Gene C. Hilton, Kent D. Irwin, David A. Rudman, Steven Deiker, Norman F. Bergren, John M. Martinis

High Frequency Response of Optical Magnetic Field Sensors Using Rare-Earth Iron Garnet Films

August 1, 2000

Author(s)

N. Itoh, Kent B. Rochford, H. Minemoto, S. Ishizuka

We have measured the high frequency response of optical magnetic field sensors using bismuth-substituted rare-earch iron garnet films up to 1 GHz.

A Digital Readout Scheme for Arrays of Microcalorimeter X-ray Detectors

August 1, 2000

Author(s)

Sae Woo Nam, David A. Wollman, Gene C. Hilton, James A. Chervenak, Steven Deiker, Kent D. Irwin, John M. Martinis

Microcalorimeter EDS: Benefits and Drawbacks

August 1, 2000

Author(s)

David A. Wollman, Dale Newbury, Sae Woo Nam, Gene C. Hilton, Kent D. Irwin, David A. Rudman, Steven Deiker, Norman F. Bergren, John M. Martinis

The commercial introduction of high-count-rate, near-room-temperature silicon drift detectors (presently available) and high-energy-resolution cryogenic...

A sounding Rocket Mission to Study the Solar Soft X-Ray and EUV Emission Using Transition-Edge sensor Technology

August 1, 2000

Author(s)

K Wamba, H Walker, Aaron J. Miller, B. Cabrera, D W. Robertson, P F. Boerner, D S. Martinez-Galarce, S F. Powell, Sae Woo Nam, Kent D. Irwin, Steven Deiker, R B. Hoover, T W. Barbee, P F. Baker

We are developing a new sounding rocket payload, the Advanced Technology Solar Spectroscopic Imager (ATSSI) that will use an 8x8 array of transition edge...

In Situ and Ex Situ Spectroscopic Ellipsometry of Low-Temperature-Grown GaAs

July 30, 2000

Author(s)

Donald A. Gajewski, Nhan Van Nguyen, Jonathan E. Guyer, Joseph Kopanski, Curt A. Richter, Joseph G. Pellegrino

Application of XML Tools for Enterprise-Wide RBAC Implementation Tasks

July 27, 2000

Author(s)

Ramaswamy Chandramouli

The use of Extensible Markup Language (XML) and its associated APIs, for information modeling and information interchange applications is being actively...

A Method for Visualizing and Managing Role-Based Policies on Identity-Based Systems

July 27, 2000

Author(s)

David F. Ferraiolo, Serban I. Gavrila

In recent years, numerous commercial and experimental Role-Based Access Control (RBAC) implementations have emerged. Central to several of these RBAC systems...

The NIST Model for Role-Based Access Control: Towards a Unified Standard

July 26, 2000

Author(s)

R. Sandhu, David F. Ferraiolo, D. Richard Kuhn

This paper describes a unified model for role-based access control (RBAC). RBAC is a proven technology for large-scale authorization. However, lack of a...

Extinction Conditions of Non-Premixed Flames With Fine Droplets of Water and Water-NaOH Solutions

July 20, 2000

Author(s)

A K. Lazzarini, R. H. Krauss, H K. Chelliah, Gregory T. Linteris

Interactions of fine droplets of water and water-NaOH solutions with a steady, laminar counterflow methane-air flame are investigated, both experimentally and...

Creeping Flame Spread Along Fuel Cylinders in Forced and Natural Flows and Microgravity

July 20, 2000

Author(s)

M A. Delichatsios, R A. Altenkirch, Matthew Bundy, S Bhattacharjee, L Tang, K Sacksteder

Semianalytical expressions are developed for creeping flame spread parallel to a fuel cylinder axis so that spread rates measured or predicted for flat surfaces...

The Challenge of Intelligent Systems

July 19, 2000

Author(s)

A Meystel, Elena R. Messina

This paper analyzes the meaning of intelligence within the domain of intelligent control. Because of historical reasons, there are varying and diverse...

Automated Parameter Extraction Software for Advanced IGBT Modeling

July 10, 2000

Author(s)

Allen R. Hefner Jr., Sebastien Bouche

A software package for extracting parameters used in advanced IGBT models is presented. In addition, new model equations and extraction procedures are...

Automated Part Tracking on the Construction Job Site

July 1, 2000

Author(s)

William C. Stone, L E. Pfeffer, K M. Furlani

Efforts are underway at the National Institute of Standards and Technology (NIST) to develop a web-based system for rapid tracking, identifying, and locating...

Performance of R-22 And Its Alternatives Working At High Outdoor Temperatures

July 1, 2000

Author(s)

S F. Yana Motta, Piotr A. Domanski

This paper examines the performance of R-22 and its possible replacements in an air-cooled air conditioner. The study focuses on the effect ofelevated outdoor...

Challenges in Developing Environmentally Safe Heat Pumping Systems

July 1, 2000

Author(s)

David Didion, J S. Brown

The advent of the global warming crisis has brought about a viewpoint, in many governments, that the halogen family of refrigerants should be replaced, in part...

Application of CW-CRDS to Monitor and Control Chemical Vapor Deposition

July 1, 2000

Author(s)

David S. Green, J P. Looney, G W. Rubloff

Continuous wave excitation cavity ring-down spectroscopy (CW-CRDS) is being evaluated for real time chemical sensing of volatile CVD byproducts (e.g. HF, H2O)...

Status of Microanalysis Standards at the National Institute of Standards and Technology (NIST)

July 1, 2000

Author(s)

Ryna B. Marinenko

This is a review of the current status of microanalysis standards at NIST -what is presently available, what will soon be available, and what might be available...

Characterization of the Electron Beam Specimen Interaction in the ESEM with SIM Imaging

July 1, 2000

Author(s)

Scott A. Wight, John G. Gillen, G B. Saupe

A Secondary Ion Mass Spectrometry (SIMS) study has been undertaken to examine surfaces and films modified in the environmental scanning electron microscope...

Cable-Based Reconfigurable Machines for Large Scale Manufacturing

July 1, 2000

Author(s)

Roger V. Bostelman, Adam S. Jacoff, Frederick M. Proctor, Thomas R. Kramer, Albert J. Wavering

Robot Crane, Robotics & Intelligent Systems, Control

An Open Architecture Inspection System

July 1, 2000

Author(s)

Elena R. Messina, Hui-Min Huang, Harry A. Scott

The benefits of open architectures are not currently available for most manufacturing equipment. We describe a testbed for experimenting with an open...

Keys to the Enhanced Performance of Mercuric Iodide Radiation Detectors Provided by Diffraction Imaging

July 1, 2000

Author(s)

B W. Steiner, L van den Berg, U Laor

High resolution monochomatic diffraction imaging is playing a central role in the optimization of novel high energy radiation detectors for superior energy...

Response Saturation of Polystyrene in MALDI

July 1, 2000

Author(s)

R J. Goldschmidt, Charles M. Guttman

For synthetic polymer samples, matrix-assisted laser desorption/ionization (MALDI) time-of-Flight (TOF) mass spectrometry (MS) can yield qualitative information...

Ultrafast Terahertz Spectroscopy: Measuring Low-Frequency Vibrational Modes of Hydrogen-Bonded Systems

July 1, 2000

Author(s)

D A. McWhorter, Alan L. Migdall, Edwin J. Heilweil

An ultrafast terahertz spectrometer using ZnTe crystals for optical rectification and free-space electro-optic sampling has been developed to measure...

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