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Conferences

Reference Scaffolds for Characterization of Porosity (Poster)

October 18, 2004

Author(s)

John A. Tesk

ASTM Task Force F04.42.06 was formed with the objective of developing reference scaffolds, with the initial thrust focused on porosity.Three dimensional test...

Estimating Multiple-Reflection Uncertainties in Spherical Near-Field Measurements

October 17, 2004

Author(s)

Michael H. Francis, Jeffrey R. Guerrieri, Katherine MacReynolds, Ronald C. Wittmann

We propose a method to estimate multiple-reflection effects on test-antenna pattern and gain uncertainties in the far field derived from spherical near-field...

Practical Implementation of Probe-Position Correction in Near-field Planar Scanning Measurements

October 17, 2004

Author(s)

Jeffrey R. Guerrieri, Katherine MacReynolds, Michael H. Francis, Ronald C. Wittmann, Douglas T. Tamura

Planar near-field measurements require taking amplitude and phase data on an accurate and equal space grid on the plane in front of the antenna under test. The...

Robust Detection and Recognition of Buildings in Urban Enviroments from LADAR Data

October 15, 2004

Author(s)

Rajmohan (. Madhavan, Tsai H. Hong

Successful Unmanned Ground Vehicle (UGV) navigation in urban areas requires the competence of the vehicle to cope with Global Positioning System (GPS) outages...

Adaptive Road Detection through Continuous Environment Learning

October 15, 2004

Author(s)

M Foedissch, A Takeuchi

The Intelligent Systems Division of the National Institute of Standards and Technology has been engaged for several years in developing real-time systems for...

New Insights into Threshold Voltage Shifts for Ultrathin Gate Oxides

October 15, 2004

Author(s)

Da-Wei Heh, Eric M. Vogel, J B. Bernstein

Threshold voltage (Vth) shifts of p- and n-channel MOSFETs during a stress are analyzed from both experiment and simulation. The result of the analysis showed...

NVNA Users Forum: Mission and Overview

October 12, 2004

Author(s)

Catherine A. Remley, Dominique Schreurs, Wendy Van Moer

This paper introduces the NVNA Users' Forum, an informal discussion group devoted to sharing information and issues related to instrumentation utilized in...

Building and Fire Safety : Responding to the World Trade Center Disaster.

October 10, 2004

Author(s)

S S. Sunder

WTC Towers : Innovative Design Features and Structural Modeling.

October 10, 2004

Author(s)

Hai S. Lew, Fahim Sadek

Electrostatic Discharge Protection For Embedded-Sensor Systems-On-a-Chip

October 8, 2004

Author(s)

Javier A. Salcedo, Juin J. Liou, Muhammad Afridi, Allen R. Hefner Jr., Ankush Varma

The robustness of Embedded-Sensor (ES) System-on-a-Chip (SoC) applications involves several design constrains that require a unique assessment. For example...

Building Regulatory Systems in a Post-September 11 World.

October 6, 2004

Author(s)

Richard W. Bukowski

The September 11, 2001 attacks in the United States have initiated a significant discussion and rethinking among building regulators not only in the U.S., but...

Metrology for Characterizing Scratch Resistance of Polymer Coatings

October 6, 2004

Author(s)

Li Piin Sung, P L. Drzal, Mark R. VanLandingham, T-Y Wu

The Effect of Process Models on Short-term Prediction of Moving Objects for Unmanned Ground Vehicles

October 6, 2004

Author(s)

Rajmohan Madhavan, Craig I. Schlenoff

We are developing a novel framework, PRIDE (PRediction In Dynamic Environments), to perform moving object prediction for unmanned ground vehicles. The...

Adaptive Real-Time Road Detection Using Neural Networks

October 6, 2004

Author(s)

M Foedissch, A Takeuchk

We have developed an adaptive real-time road detection application based on Neural Networks for autonomous driving. By taking advantage of the unique structure...

Planning for On-Road Driving Through Incrementally Created Graphs

October 6, 2004

Author(s)

Stephen B. Balakirsky, Christopher J. Scrapper Jr

A general-purpose hierarchical planning framework that allows for cost-optimal, logic-constrained plans will be presented. This framework will be applied to...

Seven DoF Cable-Suspended Robot With Independent Metrology

October 4, 2004

Author(s)

R L. Williams, B Snyder, James S. Albus, Roger V. Bostelman

Seven-DOF Cable-Suspended Robot with Independent Metrology

October 4, 2004

Author(s)

R L. Williams, B Snyder, James S. Albus, Roger V. Bostelman

This paper presents a new cable-suspended robot. It is a 7-cable spatial design with a closed-form forward pose kinematics solution. Applications include...

High-accuracy optical group delay measurements and modulator chirp characterization

October 4, 2004

Author(s)

Tasshi Dennis, Paul A. Williams

We present group delay measurements of a molecular absorption line for absolute calibration with 0.17 ps resolution. The distortion caused by modulator chirp is...

Design Optimization for a Parallel MEMS Mechanism with Flexure Joints

October 4, 2004

Author(s)

Byoung H. Kang, J Wen, Nicholas Dagalakis, Jason J. Gorman

This paper presents an analysis tool and design method forMEMS parallel mechanisms. Due to processing constraints inMEMS fabrication, flexure joints are...

Accessing the Performance of Model-Based Control in a Distributed Machine Tool Control Environment

October 2, 2004

Author(s)

John L. Michaloski, Johannes A. Soons, Frederick M. Proctor

Although Computerized Numerical Controller (CNC) machine tools have greatlyimproved precision, quality and productivity, there are still many areaswhere...

Time and Frequency Technology Related to the Operation of a Cesium Fountain Primary Frequency Standard

October 1, 2004

Author(s)

Thomas E. Parker

The operation of a cesium fountain primary frequency standard is greatly facilitated by the presence of two other important capabilities. The first is a stable...

Electrical material property measurements using a free-field, ultra-wideband system

October 1, 2004

Author(s)

Chriss A. Grosvenor, Robert T. Johnk, David R. Novotny, Seturnino Canales, James R. Baker-Jarvis, Michael D. Janezic, Jim L. Drewniak, Marina Kolednitseva, Jianmin Zhang, Poornachander Rawa

Abstract: Nondestructive measurements of materials using TEM horn antennas and an ultra-wideband measurement system are presented. Time-domain gating and...

A Metrology-based Uncertainty Analysis Approach to V&V of Computer Models of High-consequence Engineering Systems

October 1, 2004

Author(s)

Jeffrey T. Fong

Gene Expression Profiles of Cells in Response to Tyrosine Polycarbonate Blends

October 1, 2004

Author(s)

Matthew Becker, L A. Bailey, N Washburn, J Kohn, Eric J. Amis

The evaluation and identification of detrimental interactions between biological species and synthetic surfaces is a daunting challenge as the number of...

Tools and Diagnostics to Assess and Improve Projection Display Metrology Capabilities

October 1, 2004

Author(s)

Paul A. Boynton

When characterizing or calibrating electronic projection display systems, the technical staff needs to understand the capabilities and limitations of the...

What Do the Specifications Mean?

October 1, 2004

Author(s)

Edward F. Kelley

Specifications and "specsmanship" continue to confuse people despite the fact that a solid metrological basis exists for communicating display performance. We...

Performance Evaluation of Road Detection and Following Systems

October 1, 2004

Author(s)

Tsai Hong Hong, A Takeucki, Mike Foedisch, Michael O. Shneier

We describe a methodology for evaluating algorithms to provide quantitative information about how well road detection and road following algorithms perform. The...

Comparison of Strength Properties of Normotensive and Hypertensive Rat Pulmonary Arteries

October 1, 2004

Author(s)

Elizabeth S. Drexler, Christopher N. McCowan, J Wright, Andrew J. Slifka, Dunbar Ivy, Robin Shandas

A series of tests were conducted to quantify the difference in the mechanical properties of normo-and hypertensive pulmonary arteries. A bubble-test design was...

Operator Interventions in Autonomous Off-Road Driving: Effects of Terrain

October 1, 2004

Author(s)

Jean C. Scholtz, Brian Antonishek, J D. Young

We participated in a field study in two terrains, arid and wooded, and compared the number and type of interventions the operators made. We also analyzed the...

Static and Quasi-static Calibration of Bio-MEMS Device

October 1, 2004

Author(s)

Andrew J. Slifka, Hrishikesh V. Panchawagh, Roop L. Mahajan, Dudley Finch, R. A. Rorrer

A bio-MEMS device which has been designed to stimulate cells by oscillatory actuation in the vertical direction has been calibrated. The displacement of this...

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