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Conferences

The Policy Machine for Security Policy Management

July 17, 2001

Author(s)

Chung Tong Hu, Deborah A. Frincke, David F. Ferraiolo

Many different access controls policies and models have been developed to suit a variety of goals: these include Role-Based Access Control, One-directional...

A Framework for Performance Evaluation and Optimization of an Emerging Multimedia DS-CDMA Network

July 10, 2001

Author(s)

Vladimir Marbukh, David H. Su

This paper proposes a framework for performance evaluation md optimization of an emerging multimedia, packet Direct-Sequence Code Division Multiple Access (DS...

A History of Testing Heat Insulators at the National Institute of Standards and Technology

July 1, 2001

Author(s)

Robert R. Zarr

The history of testing heat insulators at the National Institute of Standards and Technology (formerly the National Bureau of Standards is nearly as long as the...

Temperature-Dependent Behavior of PbSc_1/2Nb_1/2O₃ From First Principles

July 1, 2001

Author(s)

Eric J. Cockayne, Benjamin P. Burton, L Bellaiche

We study the ferroelectric phase transition in PbSc1/2Nb1/2O3 (PSN) using a first-principles effective Hamiltonian approach. Results for PSN with NaCl-type...

A Genetic Programming System with a Procedural Program Representation

July 1, 2001

Author(s)

John G. Hagedorn, J E. Devaney

We describe the status of a genetic programming system that is based on a procedural program representation. The procedural representation is closely related to...

What to Expect When You Can Not Start at the Beginning

July 1, 2001

Author(s)

David E. Cypher

This presentation contains background information on the decision to create an Specification and Description Language (SDL) model, a discussion of the...

CDMA2000 Reverse-Link Simulation Model Design and Evaluation

July 1, 2001

Author(s)

Hamid Gharavi, R Wyatt-Millington, F Chin

This paper presents the design and implementation of a simulation model for the cdma2000 reverse link. The model includes all the radio configurations and their...

Simulations of Filled Polymers on Multiple Length Scales

July 1, 2001

Author(s)

Francis W. Starr, S C. Glotzer

We present simulation results of the effect of nanoscopic and micron-sized fillers on the structure, dynamics, and mechanical properties of polymer melts and...

FEA Modeling and Hardness Performance Prediction of Rockwell Diamond Indenters

July 1, 2001

Author(s)

Li Ma, J Zhou, Samuel R. Low III, Jun-Feng Song

The difficulty in manufacturing Rockwell diamond indenters to the required geometric specifications has resulted in most commercially manufactured indenters to...

DTA/TGA Study of Eutectic Melting in the System BaF₂-BaO-Y₂O₃-CuO_x-H₂O

July 1, 2001

Author(s)

Lawrence P. Cook, Winnie K. Wong-Ng, J Suh

Differential thermal analysis and thermogravimetric analysis (DTA/TGA) experiments have been completed in the BaF2-BaO-Y2O3-CuOx-H2O system at various oxygen...

An Introduction to the Phase-Field Method: Simulation of Alloy Solidification

July 1, 2001

Author(s)

William J. Boettinger, James A. Warren, C Beckermann, A N. Karma

An overview of the phase-field method for modeling alloy solidification is presented together with several example results. Using a phase-field variable and a...

The Significance of Percolation on the Dynamics of Polymer Chains Bound to Carbon Black

July 1, 2001

Author(s)

A Nakatani, R Ivkov, P Papanek, C L. Jackson, H Yang, L T. Nikiel, M Gerspacher

Neutron time-of-flight (TOF) spectroscopy is used to compare the chain dynamics of pure polyisoprene with polyisoprene bound to the surface of various grades of...

NIST Role in Radiometric Calibrations for Remote Sensing Programs at NASA, NOAA, DOE and DOD

July 1, 2001

Author(s)

Albert C. Parr, Raju V. Datla

The Optical Technology Division (OTD) at the National Institute of Standards and Technology (NIST) has been actively involved in providing calibration support...

Modeling Technology for a Model-Intensive Enterprise

July 1, 2001

Author(s)

Michael Gruninger, David W. Flater, Peter O. Denno

The Object Management Group (OMGtm) is defining specifications supporting a modeling environment that permits models from a family of modeling languages to...

Single-Integral-Equation Method for Scattering by Dielectric Cylinders

July 1, 2001

Author(s)

Egon Marx

Electromagnetic scattering of an incident plane monochromatic wave by dielectric or finitely conducting infinite cylinders of arbitrary shape, possibly in the...

Single-Integral-Equation Method for Three-Dimensional Scattering

July 1, 2001

Author(s)

Egon Marx

The fields scattered by a homogeneous dielectric or finitely conducting object can be obtained from two tangential vector fields, the components of the electric...

Panel Session: Educational Needs for Simulation - A Government Perspective

July 1, 2001

Author(s)

Charles R. McLean

At the National Institute of Standards and Technology, the goal of the program in Manufacturing Simulation and Visualization is to accelerate the development of...

Metrology for the Optoelectronics Industry

July 1, 2001

Author(s)

Gordon W. Day

Electrometrology and NIST -- New Directions

July 1, 2001

Author(s)

William E. Anderson

I gaze into a somewhat cloudy crystal ball to predict the directions of electrical metrology in the next fifteen years. The emphasis on standards based on...

Interference of Bluetooth and IEEE 802.11: Simulation Modeling and Performance Evaluation

July 1, 2001

Author(s)

Nada T. Golmie, R E. Van Dyck, A Soltanian

The emergence of several radio technologies such as Bluetooth, and IEEE 802.11 operating in the 2.4 GHz unlicensed ISM frequency band may lead to signal...

Ultimate Capacities of Low-Rise Steel Frames in Turbulent Wind

July 1, 2001

Author(s)

S Jang, L L. Lu, Fahim H. Sadek, Emil Simiu

This paper is a derivative of G2001-1392, Database-Assisted Wind Load Capacity Estimates for Low-Rise Steel Frames, by Jang, S., et al., intended for...

Electron Interactions with c-C4F8

July 1, 2001

Author(s)

Loucas G. Christophorou, James K. Olthoff

Electron, Transport, Ionization and Attachment Coefficients in C2F4 and C2F4/Ar Mixtures

July 1, 2001

Author(s)

Amanda N. Goyettes, G. de Hann, Yicheng Wang, Loucas G. Christophorou, James K. Olthoff

SI Traceability of Force at the Nanonewton Level

July 1, 2001

Author(s)

David B. Newell, Jon R. Pratt, John A. Kramar, Douglas T. Smith, L. A. Feeney, Edwin R. Williams

Although nanonewton force measurements are commonplace in industry, no National Measurement Institute supports a link to the International System of Units (SI)...

Novel High-Voltage Range Resistors for Ac-DC Thermal Converters

July 1, 2001

Author(s)

H. O. Wolcott, Joseph R. Kinard Jr., Thomas E. Lipe Jr.

This paper discusses the factors contributing to the ac-dc differences of high-voltage thermal converters. A novel resistor designed to minimize these...

Recent Developments in the NIST Cryogenic Thermal Transfer Standard Project

July 1, 2001

Author(s)

Thomas E. Lipe Jr., Joseph R. Kinard Jr., Carl D. Reintsema

We describe the development of a cryogenic thermal transfer standard (CTTS) from the first prototype in 1997 to the present version. A description of the...

The Expanding Role of Simulation in Future Manufacturing

July 1, 2001

Author(s)

Charles R. McLean, Swee K. Leong

Simulation technology holds tremendous promise for reducing costs, improving quality, and shortening the timeto- market for manufactured goods. Unfortunately...

Influence of Filler Particles and Filler Clusters on Phase Separation in Binary Polymer Blends

July 1, 2001

Author(s)

Y. L. Jiang, A Saxena, T Lookman, Jack F. Douglas

Motivated by recent experiments on filled polymer thin films, we study the effect of the presence of filler particles on phase separating mixtures. using a...

Plasma Broadening and Shifts of Non-Hydrogenic Spectral Lines: An Overview of Recent Results

July 1, 2001

Author(s)

N Konjevic, A Lesage, Jeffrey R. Fuhr, Wolfgang L. Wiese

The recent status of the experimental studies of plasma broadening and shifts of non-hydrogenic neutral atom and positive ion spectral lines is reviewed and the...

FEA Modeling and Hardness Performance Prediction of Rockwell Diamond Indenters

July 1, 2001

Author(s)

Hui Zhou, Jun-Feng Song, Samuel Low, Li Ma

The difficulty in manufacturing Rockwell diamond indenters to the required geometric specifications has resulted in most commercially manufactured indenters to...

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