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Displaying 15026 - 15050 of 73697

Chemical vs. Physical Acceleration of Cement Hydration: CaCl2 vs. Limestone Powder

November 1, 2016
Author(s)
Dale P. Bentz, Franco Zunino, Didier Lootens
Cold weather concreting often requires the use of chemical accelerators to speed up the hydration reactions of the cement, so that setting and early-age strength development will occur in a timely manner. While calcium chloride (dihydrate – CaCl2∙2H2O) is

CrO 3 Based Proton Conductors

November 1, 2016
Author(s)
Laura Mazzei, Max Wolff, Daniele Pergolesi, Joseph Dura, Lars Borjesson, Philipp Gutfreund, Marco Bettinelli, Thomas Lippert, Maths Karlsson
Epitaxial thin films of the proton conducting perovskite BaZr 0.53In 0.47O 3-δH^d0.47-2δ, grown by pulsed laser deposition, were investigated in their hydrated and dehydrated conditions through a multi-technique approach with the aim to study the structure

Development and Characterization of Reference Materials for Genetic Testing

November 1, 2016
Author(s)
Justin M. Zook, Marc L. Salit, Lisa V. Kalman, Mickey Williams, Vivekananda Datta, Jin-Yeong Han
Characterized reference materials (RM) are needed for test development and validation, quality control procedures and proficiency testing to assure the quality of clinical laboratory tests. In this article, we review the development and characterization of

Dynamic Odd-Even Effect in Liquid n-Alkanes Near Their Melting Points

November 1, 2016
Author(s)
Ke Yang, Zhikun Cai, Abhishek Jaiswal, Madhu Sudan Tyagi, Jeffrey S. Moore, Yang Zhang
n-Alkanes are the textbook examples of the odd-even effect. The difference in the packing pattern of odd- and even-numbered n-alkanes results in the odd-even variation of their melting points. In the liquid state, where the packing effects do not hold, it

Energetics of Small and Moderate-Scale Gaseous Pool Fires

November 1, 2016
Author(s)
Anthony P. Hamins
A series of measurements were made to characterize the global properties of moderate-sized pool fires steadily burning in a quiescent environment. A wide range of parameters were considered including lightly and heavily sooting hydrocarbon fuels (methane

Integrative and comparative reproductive biology: From alligators to xenobiotics

November 1, 2016
Author(s)
Ashley S. Boggs-Russell, John Bowden, Abby G. Wenzel, Satomi Kohno, Heather J. Hamlin, Lori Cruze, Krista A. McCoy, Alison M. Roark, Thea M. Edwards, Theresa M. Cantu, Jessica A. Cloy-McCoy, Nicole A. McNabb, Cameron E. Williams
Dr. Louis J. Guillette Jr. thought of himself as a reproductive biologist. However, his interest in reproductive biology transcended organ systems, life history stages, species, and environmental contexts. His integrative and collaborative nature led to

Loading Protocols for ASCE 41 Backbone Curves

November 1, 2016
Author(s)
Bruce F. Maison, Matthew Speicher
ASCE 41-13 is an industry standard for seismic evaluation and retrofit of existing buildings. Alternative component modeling and acceptance criteria are based on a backbone curve constructed from an envelope of component hysteresis loops derived via

Model Verification with Measurement Uncertainty

November 1, 2016
Author(s)
Dylan F. Williams, Richard A. Chamberlin, Jerome G. Cheron, Wei Zhao, Urteaga Miguel
We verify a model for state-of-the-art 250 nm heterojunction bipolar transistors with large-signal measurements. We demonstrate the propagation of correlated measurement uncertainties through the model-extraction and verification process, and use them to

Modeling the Internet of Things and People: A Foundational Approach

November 1, 2016
Author(s)
Spencer J. Breiner, Eswaran Subrahmanian, Ram D. Sriram
As we extend the reach of the Internet through sensing and automation, networked systems interact more and more of our daily lives, requiring much greater sensitivity to social networks and greater robustness in the face of human behavior. A tremendous

Sketchnoting: An Analog Skill in the Digital Age

November 1, 2016
Author(s)
Robert M. Dimeo
In the last decade, a method of notetaking incorporating hand-drawn visual elements has become an increasingly popular technique for recording information from meetings and presentations at conferences. Why has it become so popular? Proponents and

The Structure of a Moderate-Scale Methanol Pool Fire

November 1, 2016
Author(s)
Anthony P. Hamins, Andrew Lock
A series of measurements was made to characterize the structure of a moderate-sized methanol pool fire steadily burning in a quiescent environment. Time averaged local measurements of temperature and gas species concentrations were made in a steadily
Displaying 15026 - 15050 of 73697
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