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Conferences

Nano- and Atomic-Scale Length Metrology

December 14, 2007

Author(s)

Theodore V. Vorburger, Ronald G. Dixson, Joseph Fu, Ndubuisi G. Orji, Shaw C. Feng, Michael W. Cresswell, Richard A. Allen, William F. Guthrie, Wei Chu

Physics-based Numerical Simulation for Design of High-Voltage, Extremely-High Current Density SiC Power Devices

December 12, 2007

Author(s)

Leonardo Hillkirk, Allen R. Hefner Jr., Robert W. Dutton

This paper presents a selection of results from numerical studies addressing various problems highly relevant to the operation of SiC power devices in power...

Application of an Evolution Program for Refrigerant Circuitry Optimization

December 7, 2007

Author(s)

Piotr A. Domanski, David A. Yashar

Increased concerns about climate change have emphasized the importance of air-conditioning and refrigeration systems with a high coefficient of performance (COP...

A Mobile Robot Control Framework: From Simulation to Reality

December 7, 2007

Author(s)

Stephen B. Balakirsky, Frederick M. Proctor, Christopher J. Scrapper Jr, Thomas R. Kramer

In order to expedite the research and development of robotic systems and foster development of novel robot configurations, it is essential to develop tools and...

Application of an Evolution Program for Refirgerant Circuitry Optimization.

December 7, 2007

Author(s)

Piotr A. Domanski, David A. Yashar

Increased concerns about climate change have emphasized the importance of air-conditioning and refrigeration systems with a high coefficient of performance (COP...

Grouping Sensory Primitives for Object Recognition and Tracking

December 3, 2007

Author(s)

Rajmohan Madhavan, M Foedissch, Tommy Chang, Tsai Hong Hong

In this paper, we describe our recent efforts in grouping sensory data into meaningful entities. Our grouping philosophy is based on perceptual organization...

Case Study in the Challenges of Integrating CNC Production and Enterprise Systems

December 3, 2007

Author(s)

Sid Venkatesh, B. Sides, John L. Michaloski, Frederick M. Proctor

Integration of factory floor Computer Numerical Control (CNC) information into Enterprise Resource Planning (ERP) subsystems has been difficult, if not...

Investigations into the potential contribution of a thermal mechanism for pulsed-high intensity focused ultrasound mediated delivery

December 3, 2007

Author(s)

Brian E. O'Neill, Howard Vo, Mary Angstadt, Victor Frenkel, Bradford Wood, Timothy P. Quinn

The mechanism behind pulsed high intensity focused ultrasound (pHIFU) effects leading to increased drug delivery are currently poorly understood. In this work...

Prediction of Elastic Properties of Concrete Using the Virtual Cement and Concrete Testing Laboratory

November 30, 2007

Author(s)

Sinan Erdogan, Edward Garboczi, Jeffrey W. Bullard

SIMULATIONS OF NOISE-PARAMETER VERIFICATION USING CASCADE WITH ISOLATOR OR MISMATCHED TRANSMISSION LINE

November 30, 2007

Author(s)

James P. Randa, Ken Wong, Roger Pollard

Results are presented for simulations of a verification process for noise-parameter measurements. The verification process consists of first measuring...

Standard Time and Frequency Dissemination via Eqyptian Digital Satellite

November 27, 2007

Author(s)

John P. Lowe, Jason Heidecker, Mohamed A. Swidan, Ahmed Hisham, Safaa Samuel

The Egyptian Satellite Company and the National Institute for Standards (NIS) in Egypt, with technical assistance from the National Institute of Standards and...

Long-term Stability of Remote Clock Comparisons with IGS Clock Products

November 27, 2007

Author(s)

Victor S. Zhang, Thomas E. Parker, Marc A. Weiss

The International GNSS Service (IGS) clock products contain clock information of the local reference for the IGS tracking receivers with respect to the IGS time...

Long Baseline Comparisons of the Brazilian National Time Scale to UTC(NIST) Using Near Real-Time and Post Processed Solutions

November 27, 2007

Author(s)

Michael A. Lombardi, Victor S. Zhang, Ricardo de Carvalho

We present the results of C/A code common-view GPS comparisons between the UTC(NIST) time scale, located at the National Institute of Standards and Technology...

Enhancements to time.gov: The national web clock for the United States

November 27, 2007

Author(s)

Andrew N. Novick, Samuel Ou

Since 1999, the official time for the United States has been presented with a graphical interface on the world wide web. Major improvements to the site, www...

Magnetic Levitation System for the Dissemination of a Non-Artifact Based Kilogram

November 27, 2007

Author(s)

Zeina J. Kubarych, Patrick J. Abbott, Edwin R. Williams, Ruimin Liu, Vincent J. Lee

We describe a new approach to directly link air and vacuum mass measurements. This approach uses magnetic levitation along with vacuum and balance technology to...

Statistical Analysis of 4 MN Force Range Key Comparison

November 27, 2007

Author(s)

Thomas W. Bartel

The factors contributing to the uncertainty are discussed for the measurements that were conducted for the 2 MN and 4MN force values of the very high force CIPM...

A Simplified Laser and Optics System for Laser-Cooled Rb Fountain-Frequency-Standards

November 27, 2007

Author(s)

Paul D. Kunz, Thomas P. Heavner, Steven R. Jefferts

We are developing a simple and robust laser and optics system suitable for a transportable laser-cooled Rubidium (Rb) atomic fountain frequency standard. This...

A Load Balancing Algorithm to Overcome the Rate-Limiting Effects in IEEE 802.11 Networks

November 26, 2007

Author(s)

Vincent Gauthier, Richard A. Rouil, Nada T. Golmie

In an IEEE 802.11 network, a single user can reduce the performance of all other users attached to the same access point. To overcome this problem, we propose...

A Frequency-Dependence Model for the Ultra-Wideband Channel based on Propagation Events

November 26, 2007

Author(s)

Camillo A. Gentile, Alfred Kik

While the frequency-dependence of the wireless channel may be negligible for narrow to wideband signals, it has been shown that modeling this dependence for...

Closed Loop CNC Manufacturing -- Connecting the CNC to the Enterprise

November 26, 2007

Author(s)

Sid Venkatesh, Rich Morihara, John L. Michaloski, Frederick M. Proctor

Closed Loop manufacturing describes the use of feedback from a Computer Numerical Control (CNC) to the Enterprise Resource Planning (ERP) to help in business...

Decentralized Trust Domain Management in Multiple Grid Environments

November 25, 2007

Author(s)

Chung Tong Hu, Karen A. Scarfone, David F. Ferraiolo

Trust domain management for the global access of a grid is managed under centralized schema for most of the current grid architectures, which are designed based...

Using a High-Fidelity Simulation Framework for Performance Singularity Identification and Testing

November 21, 2007

Author(s)

Christopher J. Scrapper Jr, Rajmohan Madhavan, Stephen B. Balakirsky

A common way to evaluate the performance of a system is to compare the algorithmic outputs with ground truth to identify divergences in the system's performance...

A Step Towards CO2-Neutral Aviation

November 20, 2007

Author(s)

Andreja Brankovic, Robert C. Ryder, Robert C. Hendricks, Marcia L. Huber

An approximation method for evaluation of the caloric equations used in combustion chemistry simulations is described. The method is applied to generate the...

Generation and Manipulation of H-Anim CAESAR Scan Bodies

November 19, 2007

Author(s)

Qiming Wang, Sanford P. Ressler

In this paper we present a procedure to create animated human models compliant with the H-Anim specification from 3D CAESAR scan bodies, which were captured...

Investigation of Brinell Indentation Diameter From Confocal Microscope Measurement and FEA Modeling

November 19, 2007

Author(s)

Li Ma, Samuel Low, J J. Song

Significant measurement differences have been continually observed worldwide in the Brinell hardness tests, even in the secondary calibration laboratories that...

ON LINE MONITORING SYSTEM - AN APPLICATION FOR MONITORING KEY WELDING PARAMETERS OF DIFFERENT WELDING PROCESSES

November 16, 2007

Author(s)

Thomas A. Siewert, Ivan Samard¿i¿, Zvonimir Kolumbi

This paper describes the application of an on-line monitoring system for the monitoring, aquisition and processing of key welding parameters. The on-line...

Stable Navigation Solutions for Robots in Complex Environments

November 15, 2007

Author(s)

Christopher J. Scrapper Jr, Rajmohan Madhavan, Stephen B. Balakirsky

During the initial phase of a disaster response it is essential for responders to quickly and safely assess the overall situation. The use of rescue robots that...

The TRECVID 2007 BBC Rushes Summarization Evaluation Pilot

November 14, 2007

Author(s)

Paul D. Over, Alan Smeaton, Phillip Kelly

This paper provides an overview of a pilot evaluation of video summaries produced automatically from unedited BBC dramatic series video. It was carried out...

Preliminary Performance Assessment of Commercially-Available Hydrogen Sensors

November 12, 2007

Author(s)

Nathan D. Marsh, Thomas G. Cleary

As part of an effort to develop standard test methods for the performance of commercial hydrogen sensors, we employed the Fire Emulator / Detector Evaluator, an...

Supplementary Backward Equations for the Industrial Formulation IAPWS-IF97 of Water and Steam for Fast Calculations of Heat Cycles, Boilers, and Steam Turbines

November 12, 2007

Author(s)

H J. Kretzschmar, K Knobloch, K Miyagawa, Allan H. Harvey, Wolfgang Wagner

This Extended Abstract summarizes the various supplementary equations that have been developed by the International Association for the Properties of Water and...

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