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Displaying 76 - 100 of 2933

Fundamental Solution of Laplace's Equation in Hyperspherical Geometry

November 29, 2011
Author(s)
Howard S. Cohl
… space, one expects there to exist a spherically symmetric fundamental solution for its corresponding Laplace-Beltrami … sectional curvature. We obtain a spherically symmetric fundamental solution of Laplace's equation on this manifold … radius. We give several matching expressions for this fundamental solution including a definite integral over …

Surface topography investigations on nickel alloy 625 fabricated via laser powder bed fusion

October 4, 2017
Author(s)
Alkan Donmez, Tugrul Ozel, Ayca Altay, Richard Leach
… techniques to reveal the complex surface texture of the nickel alloy 625 test cubes that are produced by following an … Powder Bed Fusion, Surface Topography, Surface Texture, Nickel Alloy … Surface topography investigations on nickel alloy 625 fabricated via laser powder bed fusion …

Influence of Scan Strategy and Process Parameters on Microstructure and Its Optimization in Additively Manufactured Nickel Alloy 625 via Laser Powder Bed Fusion

September 23, 2016
Author(s)
Yigit Arisoy, Luis Criales, Tugrul Ozel, Brandon Lane, Shawn P. Moylan, Alkan Donmez
… additive manufacturing process produces nearly fully dense nickel alloy 625 (IN625) parts with complex features. L-PBF … grains and growth directions of columnar grains on the nickel alloy 625 test coupons. The effects of process … laser melting, Laser powder bed fusion, Microstructure, Nickel alloy IN625 …

Quantum Electrodynamics and the Fundamental Constants

August 1, 2000
Author(s)
Peter J. Mohr, Barry N. Taylor
… The fundamental constants are evaluated by comparison of the … CODATA, data analysis, fine-structure constant, fundamental constants, least-squares adjustments, QED, Rydberg … Quantum Electrodynamics and the Fundamental Constants …

Electronic Version of the 1998 CODATA Recommended Values of the Fundamental Physical Constants

November 7, 2017
Author(s)
Barry N. Taylor, Peter J. Mohr
… The 1998 CODATA recommended values of the fundamental physical constants have been derived by P.J. Mohr … on Data on Science and Technology) Task Group on Fundamental Constants. When approved by the Task Group, in … the 1986 values which are currently on the Web site of the Fundamental Constants Data Center of the NIST Physics …

Parallel-Plate Rheometer Calibration Using Oil and Lattice Boltzmann Simulation

October 11, 2007
Author(s)
Chiara F. Ferraris, Nicos Martys, M R. Geiker, N V. Muzzatti
… the viscosity. This paper presents a modified parallel plate rheometer. Experimental measurements on standards oils … cement paste, mortar, parallel plate rheometer, rheology, standard oil … Parallel-Plate Rheometer Calibration Using Oil and Lattice Boltzmann …

Fundamental Electron Interactions with Plasma Processing Gases

November 1, 2003
Author(s)
Loucas G. Christophorou, James K. Olthoff
… It provides an up-to-date and comprehensive account of the fundamental interactions of low energy energy electrons with … Fundamental Electron Interactions with Plasma Processing Gases … Fundamental Electron Interactions with Plasma Processing Gases …

Adjusting the Values of the Fundamental Constents

March 1, 2001
Author(s)
Peter J. Mohr, Barry N. Taylor
… it is necessary to know the value of one or more of the fundamental physical constants, such as the electron mass, or … behind the latest CODATA recommended values of the fundamental constants. … electron anomalous magnetic moment, electron mass, fundamental constants, gravitational constant, hydrogen …

Sensitivity analysis for guarded-hot-plate apparatus: A methodology based on orthogonal experiment designs

September 9, 2014
Author(s)
Robert R. Zarr, James J. Filliben
… Institute of Standards and Technology 500 mm guarded-hot-plate apparatus are presented. The effects of four factors … across the air space separating the central meter plate and the surrounding guard plate, described here as the gap temperature offset (ΔTg). … design, fractional factorial, full factorial, guarded hot plate, high density molded fibrous glass board, orthogonal, …

Bilateral NMI Comparison of Guarded-Hot-Plate Apparatus

April 27, 2014
Author(s)
Alain Koenen, Robert R. Zarr, William F. Guthrie
… States present measurements obtained by the guarded hot plate method. The study involved two materials, expanded … expanded polystyrene, fibrous glass, guarded hot plate, interlaboratory, thermal conductivity, thermal … Bilateral NMI Comparison of Guarded-Hot-Plate Apparatus …

Fourier and Gegenbauer expansions for a fundamental solution of the Laplacian in the hyperboloid model of hyperbolic geometry

March 23, 2012
Author(s)
Howard S. Cohl, Ernie G. Kalnins
… hyperbolic space, there exists a spherically symmetric fundamental solution for its corresponding Laplace-Beltrami … sectional curvature. We obtain a spherically symmetric fundamental solution of Laplace's equation on this manifold … radius. We give several matching expressions for this fundamental solution including a definite integral over …

Fundamental Constants, QED, and the Proton Form Factor

September 1, 1999
Author(s)
Peter J. Mohr, Barry N. Taylor
… Most of the fundamental constants are obtained by the comparison of the … data analysis, fundamental constants, proton form factor, QED, Rydberg … Fundamental Constants, QED, and the Proton Form Factor …

THE 2006 ADJUSTMENT OF THE FUNDAMENTAL CONSTANTS: LOOKING TOWARDS 2010

June 1, 2008
Author(s)
David B. Newell, Peter Mohr, B N. Taylor
… A new set of values of the basic fundamental constants has been recommended by the Committee … CODATA, fundamental constants, least squares adjustment, precision … THE 2006 ADJUSTMENT OF THE FUNDAMENTAL CONSTANTS: LOOKING TOWARDS 2010 …

Analytical and Experimental Assessment of Steel Truss Bridge Gusset Plate Connections

June 8, 2011
Author(s)
Mark A. Iadicola, Yavuz Mentes, Yoon D. Kim, Robert S. Zobel, Donald W. White, Roberto T. Leon, Justin M. Ocel
… from comprehensive studies of steel truss bridge gusset plate behavior and proposes practical design procedures. The … and Experimental Assessment of Steel Truss Bridge Gusset Plate Connections …

Proceedings of the Workshop on the Determination of the Fundamental Constants

July 17, 2015
Author(s)
Donald R. Burgess Jr.
… of the 2015 Workshop on the Determination of the Fundamental Constants, a broad overview of the fundamental constants themselves, and finally a short history of compilations and evaluations of the fundamental constants. … constant, elementary charge, fine-structure constant, fundamental constants, Josephson effect, Newtonian …

Fundamental solutions and Gegenbauer expansions of Helmholtz operators on Riemannian spaces of constant curvature

December 31, 2018
Author(s)
Howard S. Cohl, Thinh Dang, Dunster Mark
… for oscillatory and damped spherically symmetric fundamental solutions of the Helmholtz equation in … are used to restrict proportionality constants for these fundamental solutions. In order to accomplish this, we … the first and second kind. Furthermore, we prove that our fundamental solutions on the hyperboloid are unique due to …
Displaying 76 - 100 of 2933
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