Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Conferences

Terahertz radiometer design for traceable noise-temperature measurements

July 14, 2006

Author(s)

Eyal Gerecht, Dazhen Gu, James P. Randa, Dave K. Walker, Robert L. Billinger

We report on design of a radiometer for traceable noise-temperature measurements at terahertz frequencies, including noise measurements on cryogenic IF...

On-Wafer Noise-Parameter Measurements at NIST

July 14, 2006

Author(s)

James P. Randa, Dave K. Walker

NIST has developed the capability to measure noise parameters on a wafer int he 1-12.4 GHz range. In this paper we briefly describe the measurement methods and...

Applying Microfluidic Technology to High Throughput and Combinatorial Polymer Library Synthesis

July 12, 2006

Author(s)

Tao Wu, Zuzanna T. Cygan, Chang Xu, Kathryn L. Beers

Advanced polymeric materials in applications as diverse as tissue engineering, electronics and personal care products require superior control of a wide range...

Simulations of Optical Microscope Images

July 3, 2006

Author(s)

Thomas A. Germer, Egon Marx

The resolution of an optical microscope is limited by the optical wavelengths used. However, there is no fundamental limit to the sensitivity of a microscope to...

NIST Sampling System for Accurate Ac Waveform Parameter Measurements

July 1, 2006

Author(s)

David I. Bergman

This paper summarizes efforts at the National Institute of Standards and Technology to develop a waveform sampling and digitizing system with accuracy...

Identification of Isolated Cavity Features Within Molecular Dynamics Simulated Chromatographic Surfaces

July 1, 2006

Author(s)

Katrice A. Lippa, Lane C. Sander, Raymond D. Mountain

Highly ordered morphological features were characterized for molecular dynamics simulated alkyl-modified silica models that represent chromatographic materials...

Growth of Nanocrystalline Ceria Studied Using a USAXS Capillary Flow-Cell

July 1, 2006

Author(s)

Vincent A. Hackley, Andrew J. Allen, P R. Jemian, J M. Raitano, S W. Chan

Nanocrystalline ceria particles, with dimensions as small as 2 nm, have been prepared at room temperature by a soft chemical route using aqueous cerium nitrate...

An Overview of Key and Supplementary Comparisons of DC Resistance Involving NIST

July 1, 2006

Author(s)

Dean G. Jarrett

Key and supplementary comparisons are of interest to the metrology community because they provide the means of demonstrating the degree of equivalence between...

The Seventh Intercomparison of Josephson Voltage Standards in North America

July 1, 2006

Author(s)

Yi-hua D. Tang, Clark A. Hamilton, David Deaver, Harold Parks, Barry Wood

The 7th Interlaboratory comparison (ILC) of Josephson Voltage Standards (JVS) at 10 V is sponsored by the National Conference of Standard Laboratories...

Direct Josephson Array Voltage Comparison Between NRC and NIST

July 1, 2006

Author(s)

Barry Wood, Yi-hua D. Tang, Clark A. Hamilton

The National Research Council's (NRC) Josephson voltage standard (JVS) has been directly compared with the compact, transportable Josephson array standard of...

Multi-path Multi-Channel Routing Protocol

July 1, 2006

Author(s)

Bo Yan, Hamid Gharavi

In this paper we present a DSR-based multi-path Routing protocol, which has been developed for transmission of Multiple Description Coded (MDC) packets in...

Automated Parameter Extraction Software For High-Voltage, High-Frequency SiC Power MOSFETs

July 1, 2006

Author(s)

Tam H. Duong, Allen R. Hefner Jr., David W. Berning

Previously developed IMPACT software tools are extended to include the material parameters and device structures of SiC power devices. These software tools...

Computer-Controlled Characterization of High-Voltage, High-Frequency SiC Devices

July 1, 2006

Author(s)

Jose M. Ortiz-Rodriguez, Allen R. Hefner Jr., David W. Berning, Colleen E. Hood, S. Olcum

Silicon carbide (SiC) power devices have begun to emerge recently with a performance that is superior to that of silicon power devices. Therefore, the push to...

A Comprehensive Evaluation of an Outdoor Vehicular Test Range

July 1, 2006

Author(s)

Robert T. Johnk, David R. Novotny, Chriss A. Grosvenor, Nino Canales, Janalee A. Graham, Doug Martin, Scott Yencer, Donald Hibbard, Louis L. Nagy, Tyrone L. Roach

This paper describes a thorough evaluation of an outdoor automotive antenna test range. Electric-field uniformity results are generated from accurate, full-wave...

Recent Investigations Into the Temperature and Pressure Characteristics of Precision 1 Ohm Resistors at the National Institute of Standards and Technology

July 1, 2006

Author(s)

George R. Jones Jr., Randolph Elmquist

Recent modifications to the precision 1 ohm resistor current comparator systems at the National Institute of Standards and Technology (NIST) allow for improved...

Reducing the linewidth of fiber-laser frequency combs

June 30, 2006

Author(s)

Nathan R. Newbury, John J. McFerran, William C. Swann

Fiber laser-based frequency combs typically exhibit broad optical linewidths, particularly in the wings. These broadened linewidths originate from white...

Frequency-Resolved Range/Doppler Coherent LIDAR with a Femtosecond Fiber Laser

June 30, 2006

Author(s)

William C. Swann, Nathan R. Newbury

We present a frequency-resolved coherent LIDAR (FReCL) based on a frequency comb source that provides higher performance than that of conventional pulsed range...

From B-Spline Mesh Generation to Effective Visualizations for the NIST Digital Library of Mathematical Functions

June 29, 2006

Author(s)

Bonita V. Saunders, Qiming Wang

We discuss the use of tensor product B-splines to generate grids, or meshes, to facilitate the plotting of high level mathematical functions for the National...

Intelligent Systems for Construction and Long Range Exploration on Planetary Surfaces

June 28, 2006

Author(s)

James S. Albus

For efficient and effective operations on Lunar and/or Martian surfaces, it will be necessary to develop robots with the ability to successfully perform...

Experiments toward Non-contact Safety Standards for Automated Industrial Vehicles

June 28, 2006

Author(s)

Roger V. Bostelman, Tsai Hong Hong, Rajmohan Madhavan

The performance evaluation of an obstacle detection and segmentation algorithm is explained upon comparing a new range camera to ground truth. Automated Guided...

Polarization-resolved photoluminescence study of individual GaN nanowires grown by catalyst-free MBE

June 28, 2006

Author(s)

John B. Schlager, Norman Sanford, Kristine A. Bertness, Joy Barker, Alexana Roshko, Paul T. Blanchard

Polarization- and temperature-dependent photoluminescence (PL) measurements were performed on individual GaN nanowires. These were grown by catalyst-free...

Collaborative Tactical Behaviors for Autonomous Ground and Air Vehicles

June 28, 2006

Author(s)

James S. Albus, Anthony J. Barbera, Harry A. Scott, Stephen B. Balakirsky

Tactical behaviors for autonomous ground and air vehicles are an area of high interest to the Army. They are critical for the inclusion of robots in the Future...

Autonomy Levels for Unmanned Systems (ALFUS) Framework: An Update

June 28, 2006

Author(s)

Hui-Min Huang, K Pavek, James S. Albus, Elena R. Messina

The initial construct of the framework for the Autonomy Levels of Unmanned Systems (ALFUS) was presented in the 2004 SPIE3 Defense and Security Symposium. This...

An Intelligent Ground Vehicle Ontology for Multi-Agent System Integration

June 27, 2006

Author(s)

Craig I. Schlenoff, R Washington, Anthony J. Barbera

The level of automation in ground combat vehicles being developed for the Army?s objective force is greatly increased over the Army?s legacy force. The...

A Standard Intelligent System Ontology

June 27, 2006

Author(s)

Craig I. Schlenoff, R Washington, Anthony J. Barbera, C Manteuffel

The level of automation in combat vehicles being developed for the Army?s objective force is greatly increased over the Army?s legacy force. This automation is...

Performance Analysis of Unmanned Vehicle Positioning and Obstacle Mapping

June 27, 2006

Author(s)

Roger V. Bostelman, Tsai Hong Hong, Rajmohan Madhavan, Tommy Chang, Harry A. Scott

As unmanned ground vehicles take on more and more intelligent tasks, determination of potential obstacles and accurate estimation of their position become...

THE LAGR PROJECT - Integrating learning into the 4D/RCS Control Hierarchy

June 27, 2006

Author(s)

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

The National Institute of Standards and Technology's (NIST) Intelligent Systems Division (ISD) has been a part of the Defense Advanced Research Project Agency...

NIST Industrial Control System Security Activities

June 26, 2006

Author(s)

Keith A. Stouffer

The National Institute of Standards and Technology (NIST) has several ongoing efforts to address industrial control system security. This paper will present an...

3D Range Imaging for Urban Search and Rescue Robotics Research

June 26, 2006

Author(s)

Roger V. Bostelman, Tsai Hong Hong, Rajmohan Madhavan, Brian A. Weiss

Urban search and rescue (US&R) operations can be extremely dangerous for human rescuers during disaster response. Human task forces carrying necessary tools and...

Towards an Approach for Knowledge-Based Road Detection

June 26, 2006

Author(s)

Mike Foedisch, Craig I. Schlenoff, Michael O. Shneier

Our previous work on road detection suggests the usage of prior knowledge in order to improve performance. In this paper we will explain our motivation for a...

Was this page helpful?