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Conferences

A Common Operator Control Unit Color Scheme for Mobile Robots

December 28, 2007

Author(s)

Michael O. Shneier, Roger V. Bostelman, James S. Albus, William P. Shackleford, Tommy Chang, Tsai Hong Hong

The Intelligent Systems Division at the National Institute of Standards and Technology (NIST) has partici-pated in the Defense Advanced Research Project Agency...

A Brief History of PRIDE

December 28, 2007

Author(s)

Zeid Kootbally, Craig I. Schlenoff, Rajmohan Madhavan

PRIDE (PRediction In Dynamic Environments) is a framework that provides an autonomous vehicle's planning system with information that it needs to perform path...

Robot Simulation Physics Validation

December 28, 2007

Author(s)

Christopher T. Pepper, Stephen B. Balakirsky, Christopher J. Scrapper Jr

Computer simulation of robot performance is an essential tool for the development of robot software. In order for simulation results to be valid for...

Development of Tools for Measuring the Performance of Computer Assisted Orthopaedic Hip Surgery Systems

December 28, 2007

Author(s)

Nicholas G. Dagalakis, Yong Sik Kim, Daniel S. Sawyer, Craig M. Shakarji

In the late seventies a sensor was invented, which could track the movement of athlete body parts. In the early eighties an improved version of this sensor was...

Evaluating Manufacturing Machine Control Language Standards: An Implementer s View

December 28, 2007

Author(s)

Thomas R. Kramer

The focus of this paper is: how can standards for manufacturing machine control languages be evaluated? What is required of a standard defining one of these...

Interoperability Testing for Shop Floor Measurement

December 28, 2007

Author(s)

Frederick M. Proctor, William G. Rippey, John A. Horst, Joseph Falco, Thomas Kramer

Manufactured parts are typically inspected to ensure quality. Inspection involves equipment and software from many different vendors, and interoperability is a...

NCWM PUB 15, Interim Meeting Agenda - January 2007

December 19, 2007

Author(s)

T Coleman, Steven E. Cook, Linda D. Crown, Ralph A. Richter, L T. Sebring, R C. Suiter, Juana S. Williams

This is the agenda for the four Standing Committees of the National Conference on Weights and Measures. This meeting will be held at the the Omni Jacksonville...

Ultrafast Dynamics of Model Molecular Photoswitches in Solid Phase

December 18, 2007

Author(s)

Tung T. To, Edwin J. Heilweil

Ultraviolet pump, infrared probe transient absorption studies of the chelatable compound 1, [Mn{?5-C5H4C(O)(SCH3)3}(CO)3], dispersed in room temperature, ~25 m...

NCWM Pub 15 - National Conference on Weights and Measures Interim Meeting of the 9rd NCWM (January 2008)

December 17, 2007

Author(s)

Linda D. Crown, Steven E. Cook, Ralph A. Richter, L T. Sebring, R C. Suiter, Lisa Warfield

his is the agenda for the four Standing Committees of the National Conference on Weights and Mesures. This meeting will be held at the Hyatt Regency Albuquerque...

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...

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...

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

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...

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...

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...

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...

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 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...

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...

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