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Displaying 26076 - 26100 of 73697

Effect of 3D Hydogel Scaffold Modulus and Topology on Human Bone Marrow Stromal Cell Fate

September 1, 2010
Author(s)
Kaushik Chatterjee, Sheng Lin-Gibson, Sapun Parekh, Nicole M. Moore, Marcus T. Cicerone, marian F. young, Carl Simon Jr.
There is growing recognition that cells can sense and respond to the physical cues from their environment, such as stiffness, mechanical loading and topology. Physical properties of the matrix can direct cellular response and are critical in the design of

Fast TheoBR: A method for long data set stability analysis

September 1, 2010
Author(s)
Jennifer A. Taylor, David A. Howe
TheoBR (Theo1 with Bias Removed) is a high-confidence statistic that evaluates frequency stability at long \tau values. However, for real-world data sets that are thousands of points and longer, the calculation of the bias with respect to the Allan

FIRE PATTERN REPEATABILITY: A LABORATORY STUDY ON GYPSUM WALLBOARD

September 1, 2010
Author(s)
Daniel M. Madrzykowski, Charles Fleischmann
In 2009, the National Research Council (U.S) published a report identifying the research needs of the forensic science community. In the field of fire investigation, one of the specific needs identified was research on the natural variability of burn

Framework Type Determination for Zeolite Crystals in the Inorganic Crystal Structure Database

September 1, 2010
Author(s)
Shujiang Yang, Mohammed Lach-hab, Iosif I. Vaisman, Estela Blaisten-Barojas, Xiang Li, Vicky L. Karen
This work provides assignment of framework type for 1391 zeolite crystal entries in the Inorganic Crystal Structure Database (ICSD). Additionally, a proposed framework type is provided for a set of 27 zeolite crystals with geometrical distortions and a set

Microfluidic Based Contactless DielectrophoreticDevice: Modeling and Analysis

September 1, 2010
Author(s)
Saugandhika Minnikanti, Darwin Reyes-Hernandez, Ruben C. Aguilar, Joseph Pancrazio, Michael Gaitan, Nathalia Peixoto
While there have been many attempts at patterning cells onto substrates, a reliable method for trapping cell clusters and forming cell arrays in a predefined geometry remains to be demonstrated. We intend to develop a multielectrode array platform to

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

Development of a MEMS based Dynamic Rheometer

August 31, 2010
Author(s)
Gordon Christopher, Jae M. Yoo, Nicholas G. Dagalakis, Steven D. Hudson, Kalman D. Migler
Rheological methods that interrogate nano-liter scale volumes of fluids and solids have advanced considerably over the past decade, yet there remains a need for methods that probe the frequency dependent complex rheological moduli through application of
Displaying 26076 - 26100 of 73697
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