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Displaying 30651 - 30675 of 73812

Structural Fire Response and Probable Collapse Sequence of World Trade Center Building 7 (Volume 1). Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-9) ***DRAFT for Public Comments***

August 1, 2008
Author(s)
Therese P. McAllister, Richard G. Gann, Jason D. Averill, John L. Gross, William L. Grosshandler, James R. Lawson, Kevin B. McGrattan, William M. Pitts, Kuldeep R. Prasad, Fahim Sadek, Harold E. Nelson
This is the primary technical report on the National Institute of Standards and Technology (NIST) investigation of the collapse of World Trade Center Building 7 (WTC 7), conducted under the National Construction Safety Team Act. The investigation

Structural Fire Response and Probable Collapse Sequence of World Trade Center Building 7 (Volume 2). Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-9) ***DRAFT for Public Comments***

August 1, 2008
Author(s)
Therese P. McAllister, Richard G. Gann, Jason D. Averill, John L. Gross, William L. Grosshandler, James R. Lawson, Kevin B. McGrattan, William M. Pitts, Kuldeep R. Prasad, Fahim Sadek, Harold E. Nelson
This is the primary technical report on the National Institute of Standards and Technology (NIST) investigation of the collapse of World Trade Center Building 7 (WTC 7), conducted under the National Construction Safety Team Act. The investigation

STWS: A Unified Web Service for IEEE 1451 Smart Transducers

August 1, 2008
Author(s)
Yuyin Song, Kang B. Lee
This paper describes a unified web service for the Institute of Electrical and Electronics Engineers (IEEE) 1451 smart transducers stabdards - Smart Transducer Web Services (STWS) developed at the National Institute of Standards and Technology (NIST) based

Albedo Measurements and Optical Sizing of Single Aerosol Particles

July 31, 2008
Author(s)
Todd J. Sanford, Daniel Murphy, David S. Thomson, Richard W. Fox
Aerosols play an important role in global climate change by their interactions with incoming solar radiation and outgoing longwave radiation from the planetary surface. The climate effects of aerosols depend on their scattering and absorption properties

Glycosidic Linkage Conformation of Methyl-alpha-Mannopyranoside

July 31, 2008
Author(s)
Orkid Coskuner, Denis E. Bergeron, Luis C. Rincon, Jeffrey W. Hudgens, Carlos A. Gonzalez
We study the preferred conformation of the glycosidic linkage of methyl--mannopyranoside in the gas phase and in aqueous solution. Results obtained utilizing Car Parrinello molecular dynamics (CPMD) simulations are compared to those obtained from

Extending the Notion of Quality from Physical Metrology to Information and Sustainability

July 30, 2008
Author(s)
Gaurav Ameta, Sudarsan Rachuri, Xenia Fiorentini, Mahesh Mani, Steven J. Fenves, Kevin W. Lyons, Ram D. Sriram
In this paper we intend to demonstrate the need for extending the notion of quality from the physical domain to information and, more comprehensively, to sustainability. In physical metrology there are well established principles such as fundamental units

Simulated SEM Images for Resolution Measurement

July 30, 2008
Author(s)
Petr Cizmar, Andras Vladar, Bin Ming, Michael T. Postek
Resolution is a key performance metric, which often defines the quality of a scanning electron microscope (SEM). Traditionally, there is the subjective measurement of the distance between two points on special ''resolution'' samples and there are several

Spectrally Bright and Broad Fiber-Based Heralded Single-Photon Source

July 29, 2008
Author(s)
Elizabeth A. Goldschmidt, M D. Eisaman, Jingyun Fan, Sergey V. Polyakov, Alan L. Migdall
We present the first experimental characterization of a heralded single-photon source based on spontaneous four-wave-mixing in a single-mode microstructure fiber. We measure the second-order correlation function, g(2)(0), to be far below the classical

Ferromagnetism in CuO-ZnO multilayers

July 28, 2008
Author(s)
C. Sudakar, K. Pradmanabhan, R Naik, G Lawes, Brian Kirby, Sanjiv Kumar, V. M. Naik
We investigated the magnetic properties of CuO–ZnO heterostructures to elucidate the origin of the ferromagnetic signature in Cu doped ZnO. The CuO and ZnO layer thickness were varied from 15 to 150 nm and from 70 to 350 nm⁠, respectively. Rutherford

STANDARDIZATION AND SOFTWARE INFRASTRUCTURE FOR GAS HYDRATE DATA COMMUNICATIONS

July 28, 2008
Author(s)
Kenneth G. Kroenlein, Ralf Loewner, Willa Wang, Vladimir Diky, Thomas Smith, Chris D. Muzny, Robert D. Chirico, Andrei F. Kazakov, E. D. Sloan, Michael D. Frenkel
Gas Hydrates Markup Language (GHML) has been under development since 2003 by CODATA Task Group Data for Natural Gas Hydrates as an international standard for data storage and transfer in the gas hydrates community. We will describe the final development of

Robust Engineering Design for Failure Prevention

July 27, 2008
Author(s)
Jeffrey T. Fong, James J. Filliben, Nathanael A. Heckert, Roland deWit, Barry Bernstein
To advance the state of the art of engineering design, we introduce a new concept on the "robustness" of a structure by measuring its ability to sustain a sudden loss of a part without causing an immediate collapse. The concept is based on the premise that

Uncertainty Estimate of Charpy Data Using a 5-factor 8-run Design of Experiments

July 27, 2008
Author(s)
Charles G. Interrante, Jeffrey Fong, James J. Filliben, N. Alan Heckert
Scatter in laboratory data with duplicates on Charpy impact tests is analyzed by identifying several sources of variability such as temperature, manganese sulfide, initial strain, mis-orientation, and notch radius in order to estimate the predictive 95%

Entangled Images from Four-Wave Mixing

July 25, 2008
Author(s)
Vincent Boyer, Alberto M. Marino, Raphael C. Pooser, Paul D. Lett
Two beams of light can be quantum mechanically entangled through correlations of their phase and intensity fluctuations. For a pair of spatially extended image-carrying light fields, the concept of entanglement can be applied not only to the entire images

Extended Huckel Tight-Binding Approach to Electronic Excitations

July 25, 2008
Author(s)
Luis C. Rincon, Anwar Hasmy-Aguilar, Carlos A. Gonzalez, Rafael Almeida
In this work we propose the application of a self-consistent Extended Huckel Tight Binding method in the computation of the absorption optical spectrum of molecules within the linear response time dependent Density Functional formalism. The Extended Huckel
Displaying 30651 - 30675 of 73812
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