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Displaying 56601 - 56625 of 74176

Determination of Water Spray Drop Size and Velocity From a Low Pressure, High Momentum, Water Mist Nozzle. Report of Test.

May 31, 1995

Author(s)

Anthony D. Putorti Jr., T D. Belsinger, W H. Twilley

In order to characterize the water spray from a low pressure, high momentum water mist nozzle, measurements were made using an optical array probe droplet analyzer. The water droplet sizes and velocities from the nozzle were measured at varying operating

Progress on a Cryogenic Linear Trap for 199 Hg + Ions

May 31, 1995

Author(s)

J D. Miller, M E. Poitzsch, F C. Cruz, D J. Berkeland, James C. Bergquist, Wayne M. Itano, David J. Wineland

Coherent Plasma Oscillations in Bulk Semiconductors

May 22, 1995

Author(s)

W. Sha, Arthur L. Smirl, W. F. Tseng

Performance of the Prototype NIST SRM 2090A SEM Magnification Standard in a Low-Acclerating Voltage SEM

May 22, 1995

Author(s)

B Newell, Michael T. Postek, J VanDerZiel

A new NIST SEM magnification calibration standard has been fabricated and characterized in production prototype form. The SRM 2090A samples contain structures ranging in pitch from 3000 um to 0.2 um and are useful at both high and low accelerating voltages

The evaluation of a comprehensive MS reference library

May 21, 1995

Author(s)

Vladimir G. Zaikin, C L. Clifton, S G. Lias, Anzor I. Mikaia, Stephen Stein, O D. Sparkman

Step-by-step procedures of spectra evaluation in the NIST/NIH/EPA mass spectral library is presented. The criteria for data inclusion to the library are discussed. Detailed analysis of manual evaluation factors are given.

Electron-Electron Interactions, Coupled Plasmon-Phonon Modes, and Mobility in n-type GaAs

May 15, 1995

Author(s)

B. A. Sanborn

Nonequilibrium Total-Dielectric-Function Approach to the Electron Boltzmann Equation for Inelastic Scattering in Doped Polar Semiconductors

May 15, 1995

Author(s)

B. A. Sanborn

Model for Calculating Alternative Agent/Nitrogen Thermodynamic Properties

May 9, 1995

Author(s)

Jiann C. Yang, Marcia L. Huber, C I. Boyer

A thermodynamic model based on the extended corresponding states principle has been developed to calculate the solubilities of nitrogen in five selected agents, HFC-227ea, CF3I, FC-218, HFC-125, and CF3Br and the pressure-temperature relationship for agent

Parametric Study of Hydrogen Fluoride Formation in Suppressed Fires

May 9, 1995

Author(s)

Gregory T. Linteris, G. Gmurczyk

Some of the proposed replacements for CF3Br, the fluorinated hydrocarbons, are required in higher concentrations to extinguish fires and contain more halogen atoms per molecule. Since they decompose in the flame, they produce correspondingly more hydrogen

A Calibration Service for Coaxial Reference Standards for Microwave Power

May 1, 1995

Author(s)

Fred R. Clague

A Survey of the Components of Display Measurement Standards

May 1, 1995

Author(s)

Edward F. Kelley, George R. Jones Jr., Paul A. Boynton, M. D. Grote, D. J. Bechis

A Survey of the Components of Display-Measurement Standards

May 1, 1995

Author(s)

Edward F. Kelley, George R. Jones Jr., Paul A. Boynton, M. D. Grote, D. J. Bechis

An Introduction to the P1003.1g and CPI-C Network Application Programming Interfaces

May 1, 1995

Author(s)

K Olsen

An Open Architecture Based Framework for Automation and Intelligent System Control

May 1, 1995

Author(s)

Hui-Min Huang, John L. Michaloski, Nicholas Tarnoff, M Nashman

Application of Single Electron Tunneling: Precision Capacitance Ratio Measurements

May 1, 1995

Author(s)

Alan F. Clark, Neil M. Zimmerman, Edwin R. Williams, A. Amar, D. Song, F. C. Wellstood, C. J. Lobb, Robert J. Soulen

Assessing Halon Alternatives for Aircraft Engine Nacelle Fire Suppression.

May 1, 1995

Author(s)

William L. Grosshandler, Cary Presser, Daniel L. Lowe, William J. Rinkinen

A coaxial turbulent spray burner was built to evaluate the relative effectiveness of different chemicals for suppressing fires in a jet engine nacelle. The fire suppressant of current choice, halon 1301 (CF3Br), must be replaced because of its detrimental

Behavior of Mock-Ups in the California Technical Bulletin 133 Test Protocol: Fabric and Barrier Effects.

May 1, 1995

Author(s)

Thomas J. Ohlemiller, John R. Shields

Twenty-seven material combinations (seven fabrics, four barriers and two polyurethane foams) were tested in four cushion mock-up form in accord with California Technial Bulletin 133 using a furniture calorimeter. These same material combinations were also

Comparison of the Seismic Provisions of Model Building Codes and Standards to the 1991 NEHRP Recommended Provisions.

May 1, 1995

Author(s)

and Associates, Inc Melvyn Green

The Interagency Committee on Seismic Safety in Construction (ICSSC) recommends use of building codes which are substantially equivalent to the National Earthquake Hazard Reduction Program Recommended Provisions for the Development of Seismic Regulations

Compliance in Spectrometry: - Quality Assurance of Spectrophotometric Measurements at NIST

May 1, 1995

Author(s)

J Hsia, Thomas C. Larason, P Y. Barnes

Compositional Analysis of Beneficiated Fly Ashes.

May 1, 1995

Author(s)

Paul E. Stutzman, R L. Centeno

Understanding the material properties of mineral admixtures will help in providing a better understanding of the factors that control their performance in concrete. This study, a part of an effort by that includes reaction kinetics, microstructure

Computer Analysis of Wall Constructions in the Moisture Control Handbook.

May 1, 1995

Author(s)

D M. Burch, C A. Saunders

A computer model, called MOIST, is used to investigate the moisture performance of recommended wall constructions given in the Moisture Control Handbook (1991). These wall constructions are intended to minimize moisture accumulation, thereby preventing

Defining Environment Integration Requirements

May 1, 1995

Author(s)

B B. Cuthill, M V. Zelkowitz

Delineation of pn Junctions by Scanning Tunneling Microscopy/Spectroscopy in Air and Ultrahigh Vacuum

May 1, 1995

Author(s)

Richard M. Silver, John A. Dagata, H. W. Tseng

Lateral dopant profiling of cleaved, passivated abrupt GaAs pn junctions using scanning tunneling microscopy/spectroscopy is demonstrated both in ultrahigh vacuum and air. A combination of forward-and reverse-bias imaging and position-dependent tunneling

Display-Measurement Round-Robin

May 1, 1995

Author(s)

D. J. Bechis, M. D. Grote, D. P. Bortfeld, L. H. Hammer, M. J. Polak, Edward F. Kelley, George R. Jones Jr., Paul A. Boynton

Guidelines for the Evaluation of X.500 Directory Products

May 1, 1995

Author(s)

John M. Tebbutt

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