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Displaying 3701 - 3725 of 4199

Assessment of Conformity, Decision Rules and Risk Analysis

April 1, 2014
Author(s)
Steven D. Phillips, Michael Krystek
Measurement uncertainty has important economic consequences for calibration and inspection activities. In calibration reports, the magnitude of the uncertainty is often taken as an indication of the quality of the laboratory. In industrial measurements

A STANDARD ANALYSIS APPROACH TO DETERMINE PRODUCT APPLICABILITY

August 31, 2011
Author(s)
Paul W. Witherell, Prabir Sarkar, Anantha Narayanan Narayanan, Jae H. Lee, Sudarsan Rachuri
Standards and regulations have become an important part of today’s society. Organizational and geographical dispersions of standards often create situations where manufacturers are forced to meet various standards for a product to reach expanded markets or

Characterization of Two Spectrmeters in Support of the Landsat Data Continuity Mission

August 27, 2010
Author(s)
Bettye C. Johnson, Robert D. Saunders, Zhigang Li, Abra Fein, Lawrence Ong, Milton Hom, Robert Barnes, B L. Markham
The Landsat Data Continuity Mission (LDCM) project at the National Aeronautics and Space Administration (NASA)Goddard Space Flight Center (GSFC) is supervising the manufacture and calibration of the Operational Land Imager (OLI) satellite instrument by

Accurate Picometers for DC and Low-Frequency Displacement Measurement

April 6, 2009
Author(s)
Jon R. Pratt, Douglas T. Smith, Lowell Howard
We have developed a fiber-optic interferometer optimized for best performance in the frequency range from DC to 1 kHz, with displacement linearity of 1 % over a range of 25 nm, and noise-limited resolution of 2 pm [1]. The interferometer uses a tunable

Target Penetration of Laser-Based 3D Imaging Systems

January 19, 2009
Author(s)
Geraldine S. Cheok, Kamel S. Saidi, Marek Franaszek
The ASTM E57.02 Test Methods Subcommittee is developing a test method to evaluate the ranging performance of a 3D imaging system. The test method will involve either measuring the distance between two targets or between an instrument and a target. The

Urban Search and Rescue Robot Performance Standards: Progress Update

June 15, 2007
Author(s)
Adam S. Jacoff, Elena R. Messina
In this paper, we describe work in performance standards for urban search and rescue (US&R) robots, begun in 2004 by the Department of Homeland Security. This program is being coordinated by the National Institute of Standards and Technology and will

Project Team 4, the 2000-2005 Reference Standards Committee of the USP Council of Experts and Its Advisory Panel, USP Staff, Consultant: Official USP Reference Standards: Metrology Concepts, Overview, and Scientific Issues and Opportunities

December 1, 2006
Author(s)
Reenie M. Parris
The United States Pharmacopeia (USP) is a private standards-setting body created in 1820 by practitioners who wished to promote the quality of therapeutic products in commerce. The principal product of USP, then and now, is the United States Pharmacopeia

Validating Portability of Step-NC Tool Center Programming

June 26, 2006
Author(s)
Sid Venkatesh, David Odendahl, Xun W. Xu, John L. Michaloski, Frederick M. Proctor, Thomas Kramer
… Class 1 (CC1) for 5-axis machining. STEP-NC is a new manufacturing standard to support ?design anywhere, build …

Device and Technology Evolution for Si-Based RF Integrated Circuits

July 1, 2005
Author(s)
Herbert S. Bennett, Ralf Brederlow, Julio Costa, Peter Cottrell, Margaret Huang, Anthony A. Immorlica, Jan-Erik Mueller, Marco Racanelli, Hisashi Shichijo, Charles E. Weitzel, Bin Zhao
The relationships between device feature size and device performance figures of merit (FoMs) are more complex for RF applications than for digital applications. Using the devices in the key circuit blocks for typical RF transceivers, we review and give

A Test Methodology for Multiple Sensor Multiple Criteria Alarms

September 26, 2004
Author(s)
Thomas G. Cleary
Multiple sensor-multiple criteria fire alarms hold promise for improving fire detection by both increasing sensitivity to fire while decreasing nuisance alarms. Eventually, to provide a fair assessment of performance, some type of uniform testing protocol

R-22 Replacement Status

August 1, 2004
Author(s)
J M. Calm, Piotr A. Domanski
The next step in the transition to environmentally safer refrigerants is phase out of R-22. It is the most widely used refrigerant, both in the United States and on a global basis. Its application range in residential, commercial, industrial, and transport
Displaying 3701 - 3725 of 4199
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