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Displaying 651 - 675 of 7106

IR Computer Generated Holograms: Design and Application for the WFIRST Grism using Wavelength-Tuning Interferometry

July 14, 2018
Author(s)
Margaret Z. Dominguez, Catherine Marx, Qian Gong, John Hagopian, Ulf Griesmann, James Burge, Dae Wook Kim
… Interferometers using computer generated holograms (CGHs) have become the industry … Aspheric metrology, optical testing, computer generated hologram, infrared, wavelength-tuning, … IR Computer Generated Holograms: Design and Application for the …

On Computing Elastic Shape Distances between Curves in d-dimensional Space

June 21, 2021
Author(s)
Javier Bernal, James F. Lawrence, Gunay Dogan, Robert Hagwood
… dimension, we present a Dynamic Programming algorithm for computing optimal diffeomorphisms that is linear, and justify … in a purely algebraic manner the usual algorithm for computing optimal rotation matrices, the Kabsch-Umeyama … allows applications of the Fast Fourier Transform for computing successively in an even more efficient manner, …

Framework for Cloud Usability

December 22, 2015
Author(s)
Brian C. Stanton, Mary F. Theofanos, Karun P. Joshi
… Framework for Cloud Usability …

Framework for Cloud Usability:

December 1, 2015
Author(s)
Brian C. Stanton, Mary F. Theofanos, Karun P. Joshi
… Framework for Cloud Usability: …

Computation of Light Scattered Into Detector

January 1, 2000
Author(s)
Egon Marx
… function (BRDF) of a rough surface to the results of a computation, we have to take into account the aperture of the … Computation of Light Scattered Into Detector …

Optimal Control of a Flexible Robot Arm

June 1, 1988
Author(s)
Jonathan W. Lee, B Wang
The work is a computer simulation of the control of a flexible robot arm. The dynamic equations for a single-link flexible robot arm have been derived rigorously. This arm has two degrees of freedom in rotation and one in translation so that the workspace

Simulating Job Replication Versus its Energy Usage

December 10, 2023
Author(s)
Brian D. Cloteaux, Vladimir Marbukh
… aspects of our lives, the energy and ecological impacts of computing are becoming increasing important. Some of the … for understanding the trade-offs between distributed computing and its carbon impact. We briefly describe our … job replication, green computing …

Digital Forensics at the National Institute of Standards and Technology

April 1, 2008
Author(s)
James R. Lyle, Douglas R. White, Richard Ayers
There are three digital forensic science projects: National Software Reference Library (NSRL), Computer Forensic Tool Testing (CFTT), Computer Forensic Reference Data Sets (CFReDS) currently providing resources for the digital investigator underway at the

A technique for in-situ displacement and strain measurement with laboratory-scale X-ray Computed Tomography

May 23, 2024
Author(s)
Orion Kafka, Alexander Landauer, Jake Benzing, Newell Moser, Elisabeth Mansfield, Edward Garboczi
… surface strain measurements during in-situ X-ray micro-computed tomography (XCT) experiments. This enables in-situ … measurement, particle tracking, Laboratory X-ray micro Computed Tomography … and strain measurement with laboratory-scale X-ray Computed Tomography …

Using realistic factors to simulate catastrophic congestion events in a network

November 1, 2017
Author(s)
Kevin L. Mills, Christopher E. Dabrowski
With the rapid growth of the Internet, there has been increased interest in the use of computer models to study the dynamics of communication networks in the research literature. An important example of this has been the study of dramatic, but relatively

Computational analysis and experiments of spatter transport in a laser powder bed fusion machine

April 16, 2024
Author(s)
Nicholas O'Brien, Syed Uddin, Jordan Weaver, Jake Jones, Satbir Singh, Jack Beuth
… gas flow rate and salient flow features are studied with a computational fluid dynamics (CFD) model and are validated … Laser powder bed fusion, Spatter particles, Computational fluid dynamics (CFD), Discrete phase model … Computational analysis and experiments of spatter transport …

On the Unification of Access Control and Data Services

August 15, 2014
Author(s)
David F. Ferraiolo, Serban I. Gavrila, Wayne Jansen
… A primary objective of enterprise computing (via a data center, cloud, etc.) is the controlled delivery of data services … of DS capabilities, AC can be more fundamental to computing than one might expect. That is, if properly …

Developing Interoperable, Accessible Software via the Atomic, Molecular, and Optical Sciences Gateway: A Case Study of the B-spline atomic R-Matrix code Graphical User Interface

October 3, 2024
Author(s)
Barry I. Schneider, kathryn hamilton, Sudhakar Pamidighantam, Tom Wolcott
The Atomic, Molecular, and Optical Science Gateway\citeamosgateway} is a comprehensive cyber\-infrastructure for research and educational activities in computational AMO science. The \hbox$B$-Spline} atomic \hbox$R$-Matrix} (BSR) suite of programs is

Terabyte Size Image Computations on Hadoop Cluster Platforms

October 7, 2013
Author(s)
Peter Bajcsy, Antoine Vandecreme, Julien M. Amelot, Phuong T. Nguyen, Joe Chalfoun, Mary C. Brady
… a characterization of four basic terabyte size image computations on a Hadoop cluster in terms of their relative … By applying our methodology to assessing efficiencies of computations on computer cluster configurations, we could … Terabyte Size Image Computations on Hadoop Cluster Platforms …

Nonlinear Optics Quantum Computing with Circuit QED

February 5, 2013
Author(s)
Prabin Adhikari, Mohammad Hafezi, Jacob Taylor
… nonlinearity is necessary to enable universal quantum computing. Here, we suggest a circuit-QED approach to linear optics quantum computing in the microwave regime, including a deterministic … Nonlinear Optics Quantum Computing with Circuit QED …

Improving the Efficiency of Markov Chain Analysis of Complex Distributed Systems

December 20, 2010
Author(s)
Christopher E. Dabrowski
… importance of distributed systems such as clouds and computing grids will require analytical tools to understand … homogeneous Discrete Markov chain representation of a computing grid can be systematically perturbed to predict … Spectral Expansion Theorem, eigenvector, eigenvalue, grid computing. …

Measurement and Standards for Computational Science and Engineering

March 1, 1999
Author(s)
Ronald F. Boisvert, J L. Blue, Daniel W. Lozier, William F. Mitchell, Roldan Pozo, Michael J. Donahue, Donald G. Porter
… and standards technology to improve the practice of computational science and engineering. … Measurement and Standards for Computational Science and Engineering …
Displaying 651 - 675 of 7106
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