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Displaying 45601 - 45625 of 74024

Industrial Autonomous Vehicle Project Report

June 1, 2001
Author(s)
Roger V. Bostelman, Maris Juberts, Sandor S. Szabo, Robert Bunch, John Evans
This report documents a National Institute of Standards and Technology (NIST) Intelligent Systems Division (ISD) effort to determine the status of Automatic Guided Vehicles (AGV's) in the United States with the goals of: 1) providing information to

Investigation of the Non-Uniqueness of the ITS-90 in the Range 660 C to 962 C

June 1, 2001
Author(s)
G T. Furukawa, Gregory F. Strouse
Preliminary results are reported on the non-uniqueness of the ITS-90 using high temperature SPRTs (HTSPRTs) in the range 660 C to 962 C. To achieve temperature stability and uniformity of the test HTSPRTs, the method employs the thermal isolation of the

LADAR Sensing Applications for Construction

June 1, 2001
Author(s)
Geraldine S. Cheok, William C. Stone
One potential breakthrough technology that stands to revolutionize construction surveying and status monitoring is known as laser range imaging. The device used to obtain the field data is known as a LADAR (Laser Distance and Ranging). With LADAR it is

Microhotplate Platforms for Chemical Sensor Research

June 1, 2001
Author(s)
Stephen Semancik, Richard E. Cavicchi, M C. Wheeler, J E. Tiffany, G Poirier, R M. Walton, John S. Suehle, B. Panchapakesan, D. E. DeVoe
This paper describes the development and use of microdevices and microarrays in chemical sensor research. The surface-micromachined microhotplate structure common within the various platforms included here was originally designed for fabricating

New NIST Mercury Triple-Point Cells

June 1, 2001
Author(s)
Gregory F. Strouse, J Lippiatt
Six new Hg triple-point (TP) cells (234.3156 K) were manufactured in the NIST PRT Laboratory for use in the realization of the International Temperature Scale of 1990 (ITS90). The fixed-point cells consisted of both glass and stainless steel designs with

NIST Activities in Support of Space-Based Radiometric Remote Sensing

June 1, 2001
Author(s)
Joseph P. Rice, B C. Johnson
This paper provides an overview of NIST research and development in optical radiometry in the field of space-based remote sensing. The applications in this field can be generally divided into two areas: environmental and defense. In the environmental

NIST Colorimetric Calibration Facility for Displays - Part 2

June 1, 2001
Author(s)
F Manoocheri, Steven W. Brown, Yoshi Ohno
velopment of a calibration facility for spectroradiometric, colorimetric, and goniometric measurements of displays, display colorimeters, and spectroradiometers has been completed at the National Institute of Standards and Technology (NIST). An overview of

NIST Reference Goniophotometer for Specular Gloss Measurements

June 1, 2001
Author(s)
Maria E. Nadal, Ambler Thompson
The measurement of specular gloss consists of comparing the luminous reflectance from a test specimen to that from a gloss standard, under the same geometric conditions. The reference goniophotometer described here was designed and characterized to comply

OOF: An Image-Based Finite Element Analysis of Material Microstructure

June 1, 2001
Author(s)
Stephen A. Langer, W Carter, Lin-Sien H. Lum
The determination of macroscopic properties of a material given its microscopic structure is of fundamental importance to materials science. We present an overview of two public domain programs which jointly predict macroscopic behavior, starting from an

Pauli Blocking of Collisions in a Quantum Degenerate Atomic Fermi Gas

June 1, 2001
Author(s)
B. L. DeMarco, S Papp, D S. Jin
We have produced an interacting quantum degenerate Fermi gas of atoms composed of two spin-states of magnetically trapped 40K. The relative Fermi energies are adjusted by controlling the populations in each spin-state. Thermodynamic measurements reveal a
Displaying 45601 - 45625 of 74024
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