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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
Key and supplementary comparisons are of interest to the metrology community because they provide the means of demonstrating the degree of equivalence between
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
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
Recent modifications to the precision 1 ohm resistor current comparator systems at the National Institute of Standards and Technology (NIST) allow for improved
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
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
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
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
The National Research Council's (NRC) Josephson voltage standard (JVS) has been directly compared with the compact, transportable Josephson array standard of
We present a frequency-resolved coherent LIDAR (FReCL) based on a frequency comb source that provides higher performance than that of conventional pulsed range
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
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
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
For efficient and effective operations on Lunar and/or Martian surfaces, it will be necessary to develop robots with the ability to successfully perform
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
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
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
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
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
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
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
The National Institute of Standards and Technology (NIST) has several ongoing efforts to address industrial control system security. This paper will present an
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
In this paper, we describe work in performance standards for urban search and rescue (USAR) robots begun in 2004 by the Department of Homeland Security. This
Christopher J. Scrapper Jr, Stephen B. Balakirsky, Elena R. Messina
Urban Search and Rescue Simulation (USARSim) is an open source package that provides a high-resolution, physics based simulation of robotic platforms. The
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
Sid Venkatesh, David Odendahl, Xun W. Xu, John L. Michaloski, Frederick M. Proctor, Thomas Kramer
A joint effort between Boeing and the National Institute of Standards and Technology (NIST) was undertaken for validating and evaluating STEP AP238 (STEP-NC)