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Displaying 4151 - 4175 of 7112

Modeling of Reinforced Concrete Assemblies under a Column Removal Scenario

November 8, 2012
Author(s)
Yihai Bao, Hai S. Lew, Sashi K. Kunnath
This paper presents a computational investigation of two reinforced concrete beam-column assemblies, each comprising three columns and two beams, subjected to monotonically increasing vertical displacement of the unsupported center column simulating a

Performance of Steel Moment Connections under a Column Removal Scenario. II: Analysis

April 3, 2012
Author(s)
Fahim H. Sadek, Joseph Main, Hai S. Lew, Sherif El-Tawil
This paper presents a computational investigation of the response of steel beam-column assemblies with moment connections under monotonic loading conditions simulating a column removal scenario. Two beam-column assemblies are analyzed, which incorporate (1

Using the BACnet Data Source v1.7

October 20, 2011
Author(s)
Michael A. Galler
The BACnet Data Source (BDS) was developed to be used as a component of the Virtual Cybernetic Building Testbed (VCBT) (1), in conjunction with work on various Fault Detection and Diagnostics (FDD) (2) and Building Commissioning (Cx) tools. The VCBT uses

Cement and Concrete Materials Research at the National Institute of Standards and Technology (NIST)

September 5, 2007
Author(s)
Edward J. Garboczi, Dale P. Bentz, Jeffrey W. Bullard, Chiara F. Ferraris, Nicos Martys, Max A. Peltz, Sudalin Rodrigues, Paul E. Stutzman, Kenneth A. Snyder, John A. Winpigler
The materials science of cement and concrete is the focus of the Inorganic Materials Group at the National Institute of Standards and Technology (NIST). These experimental and computational research efforts include component and finished materials

Relaxation Effects in Small Critical Nozzles

January 1, 2006
Author(s)
Aaron N. Johnson, C L. Merkle, Michael R. Moldover, John D. Wright
We computed the flow of four gases (He, N 2, CO 2, and SF 6) through a critical nozzle by augmenting traditional computational fluid dynamics (CFD) with a rate equation that accounts for τ relax, a species-dependent relaxation time that characterizes the

E-Government Security Issues and Measures

December 30, 2005
Author(s)
William C. Barker
The Handbook will be a three-volume, 2,400-page reference source providing state-of-the-art information concerning the information, computer and network security with coverage of the core topics. The audience is four-year colleges and universities with

Content-Level Conformance Testing: An Information Mapping Case Study

March 1, 2005
Author(s)
Boonserm Kulvatunyou, Nenad Ivezic, Albert T. Jones
Content-level conformance testing is a key to achieving interoper-able data exchange among applications deployed across collaborating, yet in-dependent enterprises. In this paper, we identify four types of content-level conformance tests to support

Erratum: Modeling Detector Response for Neutron Depth Profiling

August 10, 2003
Author(s)
Kevin Coakley, R. G. Downing, George P. Lamaze, H C. Hofsass, C Ronning, J Biegel
In a previous paper, we analyzed the Neutron Depth Profiling energy spectrum collected from a diamond-like carbon (DLC) sample doped with boron. Based on a numerical model for the Detector Response Function (DRF), we estimated a theoretical boron profile

Quantitation of Polymer End Groups Using MALDI TOF MS

July 1, 2002
Author(s)
A P. Weaver, Charles M. Guttman, Kathleen M. Flynn
… polystyrene contained in the samples has been inferred by computing the peak areas from the mass spectral data.By comparing the ratios obtained by computing the MALDI peak areas to the mass fractions of the …

Single-Integral-Equation Method for Three-Dimensional Scattering

July 1, 2001
Author(s)
Egon Marx
The fields scattered by a homogeneous dielectric or finitely conducting object can be obtained from two tangential vector fields, the components of the electric and magnetic fields, on the interface. We have adapted the single-integral-equation method for

Simulation of Fluid Flow and Permeability in Cohesionless Soils

April 1, 2000
Author(s)
E Masad, B Muhunthan, Nicos Martys
This paper reports on a new laboratory methodology for the determination of the structure of pores, a method for the analysis of the data to obtain the statistics of the pore structure distribution, simulation of porous media with statistics consistent

Impediments to Software Engineering Technology Transfer

December 1, 1998
Author(s)
M V. Zelkowitz, D Wallace, D W. Binkley
Although the need to transition new technology to improve the process of developing quality software products is well understood, the computer software industry has done a poor job of carrying out that need. All toooften new software technology is touted

Culture Conflicts in Software Engineering Technology Transfer

June 30, 1998
Author(s)
M V. Zelkowitz, D Wallace, D W. Binkley
Although the need to transition new technology to improve the process of developing quality software products is well understood, the computer software industry has done a poor job of carrying out that need. All toooften new software technology is touted

An Integrated Approach to Optimal Three Dimensional Layout and Routing

January 1, 1998
Author(s)
Simon Szykman, J Cagan, P Weisser
This paper describes the combination of previously-developed component placement and routing algorithms into an integrated computational approach to product layout optimization. Previous work introduced simulated annealing-based algorithms for optimal

Apparel STEP Translator

January 1, 1991
Author(s)
Howard T. Moncarz, Yung-Tsun Lee
This paper describes the implementation of a prototype computer program for translating apparel pattern data between different file storage formats. The software demonstrates the feasibility of using a single, standard format as a mechanism for exchanging

Scalable Modeling of Human Blockage at Millimeter-Wave: A Comprehensive Analysis of Knife-Edge Diffraction, the Uniform Theory of Diffraction, and Physical Optics Against 60 GHz Channel Measurements

December 22, 2022
Author(s)
Anmol Bhardwaj, Camillo Gentile, Jelena Senic
Human blockage at millimeter-wave frequencies is most commonly modeled through Knife-Edge Diffraction (KED) from the edges of a vertical strip. Although extensively validated through controlled laboratory experiments, the method does not scale to realistic

Toward specification of complex additive manufactured metal surfaces for optimum heat transfer

September 23, 2021
Author(s)
Kuldeep Mandloi, Christopher Evans, Jason Fox, Harish Cherukuri, Jimmie Miller, Angela Allen, David Deisenroth, Alkan Donmez
Metal additive manufacturing (AM) offers the possibility of incorporating cooling channels into components in high-temperature applications. Additionally, it has the prospect of optimizing cooling channel geometry unconstrained by geometric limitations of

Quantifying Uncertainties in Solvation Procedures for Modeling Aqueous Phase Reaction Mechanisms

January 4, 2021
Author(s)
Kathleen Schwarz, Alex Maldonado, Tae Hoon Choi, Frank Eckert, Satoshi Hagiwara, Minoru Otani, Ravishankar Sundararaman, John Keith
Computational quantum chemistry provides fundamental chemical and physical insights into solvated reaction mechanisms across many areas of chemistry, especially in homogeneous and heterogeneous renewable energy catalysis. Such reactions may depend on

Examination of Downsampling Strategies for Converting 1000 ppi Fingerprint Imagery to 500 ppi

January 22, 2013
Author(s)
Shahram Orandi, John M. Libert, John D. Grantham, Lepley Margaret, Bruce Bandini, Kenneth Ko, Lindsay M. Petersen, Stephen S. Wood, Stephen G. Harvey
Currently the bulk of fingerprint data in operational is captured, processed and stored at 500 ppi using the WSQ compressed digital format. With the transition to 1000 ppi, some systems will unavoidably contain an overlap between 500 ppi and 1000 ppi
Displaying 4151 - 4175 of 7112
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