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Conferences

A Real World Pilot implementation of the Core Manufacturing Simulation Information Model

June 23, 2008

Author(s)

Swee K. Leong, Marcus Johansson, Bj?rn Johansson, Yung-Tsun T. Lee, Frank H. Riddick

While software for discrete event simulation (DES) has emerged into sophisticated tools for decision support in a wide range of contexts, the need to integrate...

Model Based Uncertainty Analysis in Inter-Laboratory Studies

June 23, 2008

Author(s)

Blaza Toman, Antonio M. Possolo

Statistical analysis of key comparison and inter-laboratory experiments is required to produce an estimate of the measurand called a reference value and further...

Smoke Control and Occupant Evacuation at the World Trade Center

June 21, 2008

Author(s)

M J. Ferreira, S M. Strege, Richard Peacock, Jason D. Averill

This paper examines smoke control and occupant evacuation in WTC 1 and WTC 2 on September 11, 2001focusing on the impact region and above for each tower...

Semi-Classical Line Shape Models of Rovibrational H2O Spectra Tested Using Frequency-Stabilized Cavity Ring-Down Spectroscopy

June 20, 2008

Author(s)

Joseph T. Hodges, Daniel Lisak, R. Ciurylo

In this work we present a brief review of recent results for water line shapes obtained by means of the frequency stabilized cavity ring-down spectroscopy (FS...

Electron Trapping: An Unexpected Mechanism of NBTI and Its Implications

June 17, 2008

Author(s)

Jason P. Campbell, Kin P. Cheung, John S. Suehle, A Oates

We utilize fast-IdVg measurements to examine NBTI recovery over a time scale of 2usecs to 1000 seconds. The extracted DVTH and %GM degradation data clearly...

Contradictions and Justifications: Extensions to the Textual Entailment Task

June 16, 2008

Author(s)

Ellen M. Voorhees

The third PASCAL Recognizing Textual Entailment Challenge (RTE-3) contained an optional task that extended the main entailment task by requiring a system to...

Evaluation of Nonlinear Distortion in ADCs Using Multisines

June 15, 2008

Author(s)

Catherine A. Remley, Nuno Carvalho, Pedro Cruz

This paper characterizes nonlinear distortion in an analog-to-digital converter (ADC) when it is excited by representative communication signals having non...

Dual-CGH Interferometry Test for X-Ray Mirror Mandrels

June 15, 2008

Author(s)

Guangjun Gao, John Lehan, Ulf Griesmann

We describe a glancing-incidence interferometric double-pass test, based on a pair of computer generated holograms (CGHs), for mandrels used to fabricate x-ray...

Design of a Turn-Key 10 V Programmable Josephson Voltage Standard System

June 13, 2008

Author(s)

Paul D. Dresselhaus, Mike Elsbury, Charles J. Burroughs, David I. Olaya, Samuel P. Benz, Norman F. Bergren, Robert E. Schwall, Zoya Popovic

NIST is designing a 10 V Programmable Josephson Voltage Standard (PJVS) system with an improved microwave design and arrays of stacked NbXSi1-x-barrier...

Thermal Network Component Models for 10 kV SiC Power Module Packages

June 13, 2008

Author(s)

Jose M. Ortiz, Madelaine H. Hernandez, Tam H. Duong, Scott G. Leslie, Allen R. Hefner Jr.

The DARPA WBGS-HPE program is developing 100 A, 10 kV SiC power modules to demonstrate the viability of a 2.75 MVA Solid State Power Substation that uses 10 kV...

Electro-Thermal Simulation of a 100 A, 10 kV Half-Bridge SiC MOSFET/JBS Power Module

June 13, 2008

Author(s)

Tam H. Duong, Jose M. Ortiz, R. N. Raju, Allen R. Hefner Jr.

This paper presents the results from a parametric simulation study that was conducted to optimize the performance of 100 A, 10 kV, 20 kHz half-bridge SiC MOSFET...

Proceedings of the Static Analysis Workshop (SAW 2008)

June 12, 2008

Author(s)

Paul E. Black, Elizabeth N. Fong

Static Analysis Workshop (SAW 2008) was held on June 12, 2008 in Tucson, Arizona and was co-located with ACM SIGPLAN 2008 Conference on Programming Language...

Modeling and Simulation for Sustainable Manufacturing

June 11, 2008

Author(s)

Deogratias Kibira, Charles R. McLean

With increasing frequency the news media reports that the planet is warming, pollutants are contaminating the environment, energy costs are rising, and precious...

Design of Experiments Approach to Verification and Uncertainty Estimation of Simulations based on Finite Element Method

June 11, 2008

Author(s)

Jeffrey T. Fong, James J. Filliben, Nathanael A. Heckert, Roland deWit

A fundamental mathematical modeling and computational tool in engineering and applied sciences is the finite element method (FEM). The formulation of every such...

Scanning Probe Microscopy for Dielectric and Metal Characterization

June 10, 2008

Author(s)

Joseph J. Kopanski, Thomas R. Walker

The properties of both insulators and metals can be characterized capacitively with scanning probe microscopy, though the techniques employed are different...

Understanding EuP and REACH

June 10, 2008

Author(s)

John V. Messina, Eric D. Simmon

There has been a world-wide trend towards legislation meant to encourage sustainable manufacturing and minimize the environmental impact of product...

Pulse Tube Cryocooler for Rapid Cooldown of A Superconducting Magnet

June 9, 2008

Author(s)

Michael A. Lewis, Ryan P. Taylor, Peter E. Bradley, Isaac Garaway, Ray Radebaugh

A single-stage pulse tube cryocooler was designed to provide rapid cooldown of a high temperature superconducting (HTS) magnet that is part of a gyrotron...

Precision Differential Sampling Measurements of Low-Frequency Voltages Synthesized with an AC Programmable Josephson Voltage Standard

June 9, 2008

Author(s)

Alain Rufenacht, Charles J. Burroughs, Samuel P. Benz, Paul D. Dresselhaus, Bryan C. Waltrip, Thomas L. Nelson

Sampling is a promising technique to compare the stepwise-approximated sine waves synthesized by an AC Programmable Josephson Voltage Standard to the sinusoidal...

Extraction of trench geometry and linewidth of nanoscale grating targets in (110)-oriented silicon using angle-resolved scatterometry

June 9, 2008

Author(s)

Heather J. Patrick, Thomas A. Germer, Michael W. Cresswell, Bin Li, Huai Huang, Paul S. Ho

The extraction of nanoscale dimensions and feature geometry of grating targets using signature-based optical techniques is an area of continued interest in...

Improvements in the NIST Johnson Noise Thermometry System

June 9, 2008

Author(s)

Samuel Benz, Horst Rogalla, Rod White, Jifeng Qu, Paul Dresselhaus, Wes L. Tew, Sae Woo Nam

We have developed a Johnson noise thermometry system that is calibrated by precision waveforms synthesized with a quantum-accurate voltage noise source (QVNS)...

Progress toward a 1V Pulse-Driven AC Josephson Voltage Standard

June 9, 2008

Author(s)

Samuel Benz, Paul Dresselhaus, Norman F. Bergren, Regis Landim

We present a new record output voltage of 275 mVrms, which is a 25% improvement over the maximum achieved with previous ac Josephson voltage standard circuits...

Complete waveform characterization at NIST

June 8, 2008

Author(s)

Paul D. Hale, Tracy S. Clement, Darryl A. Keenan, Dylan F. Williams, Arkadiusz C. Lewandowski, C. M. Wang, Andrew Dienstfrey

We present a method for calibrating the voltage a pulse generator delivers to a load at every point in the measured waveform epoch. The calibration includes an...

High resolution spectroscopy using fiber-laser frequency combs

June 8, 2008

Author(s)

Ian R. Coddington, William C. Swann, Nathan R. Newbury

The output of a femtosecond fiber laser can be both spectrally broadened and stabilized, thereby providing a broadband coherent source in the near infrared. In...

ANTENNA TEST RANGE IMAGING USING SPHERICAL NEAR-FIELD SCANNING

June 8, 2008

Author(s)

Michael H. Francis, Ronald C. Wittmann, Randy Direen

Although the theory is straightforward, practical implementation of spherical near-field scanning for evaluating test chambers presents some significant...

Design and Correction Factor Evaluation of a WR-15 (50 to 75 GHz) Microcalorimeter

June 8, 2008

Author(s)

Thomas P. Crowley, Xiaohai Cui

The design and evaluation of a WR-15 (50 to 75 GHz) rectangular waveguide microcalorimeter is presented. This new microcalorimeter will be the national standard...

Uncertainty Analysis for Noise-Parameter Measurements

June 8, 2008

Author(s)

James P. Randa

A brief summary is presented for the uncertainty analysis for measurements of noise parameters of amplifiers and transistors, in both connectorized (coaxial)...

High Rate Tensile Strength Measurements of Frangible Bullets Using a Kolsky Bar

June 8, 2008

Author(s)

Steven P. Mates, Richard L. Rhorer, Stephen W. Banovic, Eric P. Whitenton, Richard J. Fields

The tensile strength of frangible bullets is measured by a high rate diametral compression test (DCT) performed with a Kolsky Bar. Frangible bullets, meant to...

Calibrated Broadband Electrical Characterization of Nanowires

June 8, 2008

Author(s)

Thomas Mitchell (Mitch) Wallis, Atif A. Imtiaz, Hans Nembach, Kristine A. Bertness, Norman Sanford, Paul T. Blanchard, Pavel Kabos

A technique is presented for the broadband electrical characterization of nanowires. The technique relies on established on-wafer calibration methods as well as...

Permittivity and Permeability and the Basis of Effective Parameters

June 8, 2008

Author(s)

James R. Baker-Jarvis, Michael D. Janezic, Billy F. Riddle

The concepts of effective permittivity and permeability are used throughout the literature to describe both highly heterogeneous materials, inhomogeneous...

Noise-parameter measurement with automated variable terminations

June 8, 2008

Author(s)

Dazhen Gu, Dave K. Walker, James P. Randa

NIST has upgraded its measurement capability of noise parameters on low-noise amplifiers with a variable termination unit in the 1 to 12.4 GHz range. Such a...

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