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Displaying 51376 - 51400 of 73697

A Fast Pulse Oscilloscope Calibration System

October 1, 1998
Author(s)
J. P. Deyst, Nicholas Paulter, T. Daboczi, Gerard N. Stenbakken, T. M. Souders
A system is described for calibrating high-bandwidth oscilloscopes using pulse signals. The fast pulse oscilloscope calibration system (FPOCS) is to be used to determine the step response parameters for digitizing oscilloscopes having bandwidths of 20 GHz

A Pulse Measurement Intercomparison

October 1, 1998
Author(s)
T. M. Souders, J R. Andrews, A. Caravone, J. P. Deyst, C. Duff, S. Naboicheck
A pulse measurement intercomparison, organized by (NIST) and conducted by the authors in their respective labs, is described. The purpose was to assess the state of the art for time-domain pulse-waveform measurements in the nanosecond regime, and to find

Analytical Study of Residential Buildings With Reflective Roofs

October 1, 1998
Author(s)
Robert R. Zarr
Annual heating (cooling) loads, peak heating (cooling) loads, and exterior roof temperatures for a small compact ranch house are computed using the Thermal Analysis Research Program (TARP) developed at the National Institute of Standards and Technology

Application of Laser Feedback Metrology to a Hexapod Test Strut

October 1, 1998
Author(s)
M Schmidt-Lange, E Amatucci, Albert J. Wavering
A laser position feedback system has been designed to improve the accuracy of strut positioning for the prototype Ingersoll2 Octahedral Hexapod machine installed at National Institute of Standards and Technology (NIST) (Figure 1). Strut laser feedback

Authentication Proxy for the VistA Hospital Information System

October 1, 1998
Author(s)
William J. Majurski
This paper describes the concept and design of an Authentication Proxy, a network service that bridges the security environments (specifically authentication) of an underlying network environment (Windows NT) and the VistA hospital information system. The

Building for Environmental and Economic Sustainability (BEES)

October 1, 1998
Author(s)
Barbara C. Lippiatt
Buildings significantly alter the environment. According to Worldwatch Institute (1), building construction consumes 40 percent of the raw stone, gravel, and sand used globally, and sand used globally each year, and 25 percent of the virgin wood. Buildings

Configurational Temperature: Verification of Monte Carlo Simulations

October 1, 1998
Author(s)
B D. Butler, G Ayton, O G. Jepps, D J. Evans
A diagnostic that is useful for checking the algorithmic correctness of Monte Carlo computer programs is presented. The check is made by comparing the Boltzmann temperature input to the program and used to accept or reject moves, with the configurational

Conformance Testing Object-Oriented Frameworks Using JAVA

October 1, 1998
Author(s)
Kevin G. Brady, James A. St Pierre
This paper details the assumptions, decision processes, and conclusions reached during the development and implementation of a Conformance Testing Tool using the JAVA [JAVA] programming language, and the Object Management Group's (OMG's) Common Object

Critical Viscosity of Xenon: Surprises and Scientific Results

October 1, 1998
Author(s)
Robert F. Berg, Michael R. Moldover, G A. Zimmerli
The Critical Viscosity of Xenon (CVX) experiment, which flew on board Space Shuttle flight STS-85 in August 1997, measured the viscosity of xenon near the liquid-vapor critical point. Very close to the critical temperature (T c = 290 K), the viscosity Η of

Dictionary of Algorithms and Data Structures

October 1, 1998
Author(s)
Paul E. Black
This web site is hosted by the Software and Systems Division, Information Technology Laboratory, NIST. Development of this dictionary started in 1998 under the editorship of Paul E. Black. This is a dictionary of algorithms, algorithmic techniques, data

Dispersed Liquid Agent Fire Suppression Screening Method (NISTIR 6242)

October 1, 1998
Author(s)
Jiann C. Yang, Michelle K. Donnelly, N C. Prive, William L. Grosshandler
The recent ban on halon 1301 production (as a result of its ozone depleting potential) has resulted in an extensive search for replacements and alternatives. The applications of fire suppression efficiency screening methods constitute an important aspect

Effect of Hydrogen on Pb(Zr,Ti)O 3 -Based Ferroelectric Capacitors

October 1, 1998
Author(s)
S R. Perusse, C W. Tipton, H D. Drew, T Venkatesan, R Ramesh, D B. Romero, V B. Podobedov, A Weber
The properties of ferroelectric films are known to degrade when subjected to hydrogen in forming gas anneals. Earlier studies have attributed this degradation to the loss of oxygen from these films during these anneals. In this study, we show that though

Enhancement of R123 Pool Boiling by the Addition of Hydrocarbons

October 1, 1998
Author(s)
Mark A. Kedzierski
This paper present pool boiling heat transfer data for ten different R123/hydrocarbon mixtures. The data consisted of pool boiling performance of a GEWA-T TM surface for pure R123 and for ten dilute solutions of five different hydrocarbons: (1) pentane, (2
Displaying 51376 - 51400 of 73697
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