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Displaying 301 - 325 of 2915

A Study of a Water-to-Water Heat Pump Using Flammable Refrigerants

June 1, 1998
Author(s)
William V. Payne, Piotr A. Domanski, J Muller
This investigation compared the performance of R22 to the performance of R290 and that of flammable zeotropic mixtures, R32/290 and R32/152a. The tests were conducted in a test apparatus specially designed to simulate a residential water-to-water heat pump

Fundamental Constants and Tests of Theory in Rydberg States of Hydrogen-like Ions

April 22, 2008
Author(s)
Ulrich D. Jentschura, Peter Mohr, Joseph N. Tan, B. J. Wundt
… of hydrogen-like ions can yield information on values of fundamental constants and test theory. With the results of a … quantum electrodynamics, QED, Rydberg States … Fundamental Constants and Tests of Theory in Rydberg States …

Processing of High Temperature Ceramic Superconductors

October 12, 2021
Author(s)
P Goyal, Winnie Wong-Ng, Y Murakami, D Driscoll
The contents of this transaction volume comprise the proceedings of the Electronics Division Focused Session HighTemperature Superconductor Processing during the American Ceramic Society annual meeting at St. Louis, MO, from April29 to May 1, 2002.. A

Direct time-domain observation of attosecond final-state lifetimes in photoemission from solids

July 1, 2016
Author(s)
Zhensheng Tao, Cong Chen, Tibor Szilvasi, Mark W. Keller, Manos Mavrikakis, Henry C. Kapteyn, Margaret M. Murnane
… into unoccupied excited states in the band structure of nickel (111). An enormous increase in lifetime of 212 +/- 30 … localized core levels, localized core levels, pulse trains, nickel, electron transverse momentum, material band …

NIST Calibration Services for Liquid Volume

November 24, 2009
Author(s)
Vern E. Bean, Pedro I. Espina, John D. Wright, J F. Houser, Sherry D. Sheckels, Aaron N. Johnson
NIST provides calibration services for metal volume provers for liquid volumes from 4 L to 7600 L using gravimetric and volumetric methods. This document describes the procedures and methods of calculation used in the calibration service. The covered

Dimensionless units in the SI

June 1, 2015
Author(s)
Peter J. Mohr, William D. Phillips
The International System of Units (SI) is supposed to be coherent. That is, when a combination of units is replaced by an equivalent unit, there is no additional numerical factor. Here we consider dimensionless units as defined in the SI, e.g. angular

Effect of Heat Treatment on the Microstructural Evolution of a Nickel-Based Superalloy Additive-Manufactured by Powder Bed Fusion Laser Sintering

June 15, 2018
Author(s)
Fan Zhang, Lyle E. Levine, Andrew J. Allen, Mark R. Stoudt, Greta Lindwall, Eric Lass, Maureen E. Williams, Yaakov S. Idell, Carelyn E. Campbell
… and thermodynamic modeling, we reveal that in an AM nickel-based superalloy, Inconel 625, unwanted δ-phase … of Heat Treatment on the Microstructural Evolution of a Nickel-Based Superalloy Additive-Manufactured by Powder Bed …

Invited Article: MiniTimeCube

June 13, 2016
Author(s)
Hans P. Mumm
We present the development of the miniTimeCube (mTC), the world’s smallest neutrino detector. The mTC is a multipurpose detector, aiming to detect not only neutrinos but also fast/thermal neutrons and gammas. Potential applications include the

High-Speed Grinding - Fundamentals and State of the Art in Europe, Japan, and the USA

April 1, 1997
Author(s)
F Klocke, E Brinksmeier, Christopher J. Evans, T Howes, I Inasaki, E Minke, H Tonshoff, J A. Webster, D Stuff
… art in the field of high speed grinding. The technological fundamentals of high speed grinding are first of all … wheels, High speed grinding … High-Speed Grinding - Fundamentals and State of the Art in Europe, Japan, and the …
Displaying 301 - 325 of 2915
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