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Displaying 30926 - 30950 of 143727

Degradation of 14C-labeled Graphene via Fenton Reaction: Reaction rates, characterization of reaction products, and potential ecological effects

September 28, 2015
Author(s)
Yiping Feng, Elijah Petersen, Kun Lu, Xiangke Guo, Shixiang Gao, Liang Mao
Graphene has attracted considerable interest due to its numerous emerging applications. It is inevitable that graphene will be released into the environment during their transportation and usage in consumer products, but their ecological risks are still

Fire Evacuation of People with Mobility Impairments Using Elevators

September 28, 2015
Author(s)
Kathryn M. Butler, Susanne M. Furman, Erica D. Kuligowski
The Final Report on the collapse of the World Trade Center (WTC) Towers recommended that tall buildings be designed for timely full-building evacuations from both building-specific and large-scale events. Since the WTC study, several project efforts have

HUMAN BEHAVIOR IN FIRE - MODEL DEVELOPMENT AND APPLICATION

September 28, 2015
Author(s)
Steve Gwynne, Erica D. Kuligowski, Michael Kinsey
The purpose of this article is to introduce a conceptual model of human behaviour in fire. This model is constructed based upon a theoretical framework of individual decision-making and response to emergencies, and from this foundation, is populated with

Surface conductance and microwave scattering in semicontinous gold films

September 28, 2015
Author(s)
Jan Obrzut
Semicontinous gold films 4 nm to 12 nm thick were characterized using patterned coplanar waveguides over a frequency range of 100 MHz to 20 GHz. Such films can form two dimensional fractal aggregates mixed with dielectric voids with unusually large

Topological Magnon Bands in Kagome Lattice Ferromagnet

September 28, 2015
Author(s)
Robin Michael Daub Chisnell, Joel Helton, D. E. Freedman, D. K. Singh, R. I. Bewley, D. G. Nocera, Y. S. Lee
The success of band theory in describing the motion of quantum particles inside solids is a foundational accomplishment in modern physics. Recent excitement has centered on systems for which the bands are topological. Such materials possess novel

The Optics and Alignment of the Divergent Beam Laboratory X-ray Powder Diffractometer and its Calibration with NIST Standard Reference Materials

September 25, 2015
Author(s)
James P. Cline, Marcus H. Mendenhall, David R. Black, Donald A. Windover, Albert Henins
The laboratory X-ray powder diffractometer is one of the primary analytical tools in materials science. It is applicable to nearly any crystalline material, and with advanced data analysis methods, it can provide a wealth of information concerning sample

An algorithm for compensation of short-period errors in optical encoders

September 24, 2015
Author(s)
Marcus H. Mendenhall, Donald A. Windover, Albert Henins, James P. Cline
We present a simple way to collect data from an optical position or angle encoder with a readout which interpolates values between the optical features, and to process this data set so as to determine the short-range errors which arise from an
Displaying 30926 - 30950 of 143727
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