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Displaying 48626 - 48650 of 143784

Mixture Proportioning Options for Improving High Volume Fly Ash Concretes

September 1, 2010
Author(s)
Dale P. Bentz, Chiara F. Ferraris, Max A. Peltz, John A. Winpigler
High volume fly ash (HVFA) concretes are one component of creating a more sustainable infrastructure. By replacing 50 % or more of the portland cement with fly ash, a significant reduction is achieved in the carbon footprint of the in place concrete. While

Reflectance Factor Measurement Complications Due to Near Infrared Fluorescence

September 1, 2010
Author(s)
Maria E. Nadal, Carl C. Miller, Clarence J. Zarobila
The researchers at the National Institute of Standards and Technology (NIST) have found that the widely used orange and red color tiles unexpectedly exhibit near infrared fluorescence. An analysis of the effect this fluorescence component has on the

Semantic B2B-integration Using an Ontological Message Metamodel

September 1, 2010
Author(s)
Marko Vujasinovic, Nenad Ivezic, Edward J. Barkmeyer Jr., Zoran Marjanovic
E-Business applications are often required to use different, incompatible, message sets to implement message interfaces for a business-to-business (B2B) communication. This makes communication with every new partner a new interoperability problem. In this

Striation Density for Predicting the Identifiability of Fired Bullets

September 1, 2010
Author(s)
Wei Chu, Jun-Feng Song, Theodore V. Vorburger, Susan M. Ballou
Without a selection procedure to exclude the bullets having insufficient individualized ballistics signature, automated ballistics identification systems will correlate an evidence bullet with all reference bullets stored in the database. Correlations that

Synthesis and Electronic Properties of the Misfit Layered Compound [(PbSe)1.00]1[MoSe2]1

September 1, 2010
Author(s)
Ian M. Anderson, Michael D. Anderson, Andrew A. Herzing, Colby Heideman, Raimar Rostek, David C. Johnson
An ultra-low thermal conductivity compound with the ideal formula [(PbSe)1.00]1[MoSe2]1 has been successfully crystallized across a range of compositions. The lattice parameters varied from 12.41 Å to 12.75 Å and the quality of the observed 00ℓ diffraction

The Development of a Unified Time and Frequency Program in the SIM Region

September 1, 2010
Author(s)
Michael A. Lombardi, J. Mauricio Lopez-Romero
The Sistema Interamericano de Metrologia (SIM) is one of five major regional metrology organizations (RMOs) recognized by the Bureau International des Poids et Mesures (BIPM). SIM is composed of the national metrology institutes (NMIs) located in the 34

The effect of shade trees on summertime electricity use in Sacramento, California

September 1, 2010
Author(s)
Geoffrey Donovan, David Butry, Joshua D. Kneifel
Although previous studies have shown that shade trees can reduce summertime electricity use, none have compared these reductions to other common energy-conservation measures. We demonstrate that a 30-year old tree planted on the west side of a house in

Translational Considerations for Cancer Nanomedicine

September 1, 2010
Author(s)
Stephen T. Stern, Jennifer B. Hall, Lee L. Yu, Laura J. Wood, Giulio F. Paciotti, Lawrence Tamarkin, Stephen E. Long, Scott E. McNeil
There are many important considerations during preclinical development of cancer nanomedicines, including: 1) unique aspects of animal study design; 2) the difficulties in evaluating biological potency, especially for complex formulations; 3) the

Variations in Cross-link Density with Deposition Pressure in Ultrathin Plasma Polymerized Benzene and Octafluorocyclobutane Films

September 1, 2010
Author(s)
Someswara R. Peri, Brian Habersberger, Bulent Akgun, Hao Jiang, Jesse Enlow, Timothy J. Bunning, Charles Majkrzak, Mark D. Foster
For ultrathin, plasma polymerized (PP) films, variations in structure with depth near the substrate and near the surface are much more readily apparent than in thick films. Neutron reflectometry (NR) measurements of ultrathin PP-films from

X-Ray Spectroscopy of Highly Charged Ions in Laboratory and Astrophysical Plasmas

September 1, 2010
Author(s)
E. H. Silver, N Brickhouse, T. Lin, G X. Chen, K. Kirby, John D. Gillaspy, Joseph N. Tan, J M. Laming
This paper presents (1) new laboratory data on the x-ray spectra of He-like Ar XVII over a broad spectral range (300-3500 eV) at high resolution (2) the results of new measurements of K-shell x- ray reference lines in carbon, oxygen, iron, copper, and
Displaying 48626 - 48650 of 143784
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