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Displaying 13176 - 13200 of 73697

Simultaneous readout of 128 X-ray and Gamma-ray Transition-edge Microcalorimeters using Microwave SQUID Multiplexing

August 8, 2017
Author(s)
John Mates, Dan Becker, Douglas Bennett, Johnathon Gard, James P. Hays-Wehle, Joseph Fowler, Gene C. Hilton, Carl D. Reintsema, Dan Schmidt, Daniel Swetz, Leila R. Vale, Joel Ullom
The number of elements in most cryogenic sensor arrays is limited by the technology available to multiplex signals from the array into a smaller number of wires and readout amplifiers. The largest demonstrated arrays of transition-edge sensor (TES)

Behavior of Steel-Sheathed Shear Walls Subjected to Seismic and Fire Loads

August 7, 2017
Author(s)
Matthew S. Hoehler, Christopher M. Smith, Tara C. Hutchinson, Xiang Wang, Brian J. Meacham, Praveen Kamath
A series of tests was conducted on six 2.7 m × 3.7 m shear wall specimens consisting of cold- formed steel framing sheathed on one side with sheet steel adhered to gypsum board and on the opposite side with plain gypsum board. The specimens were subjected

Efficient Rectangular Waveguide to Stripline Transition in D Band

August 7, 2017
Author(s)
Dazhen Gu, Xifeng Lu, Ronald A. Ginley
We present a waveguide-to-stripline transition for a full {\it D}-band operation from 110 GHz to 170 GHz. An E-plane probe in parallel with waveguide main axis is configured to effectively couple the signal in the primary $\text{TE}_{10}$ mode from the

Modeling Bloch Oscillations in Nanoscale Josephson Junctions

August 7, 2017
Author(s)
Heli C. Vora, Richard Kautz, Sae Woo Nam, Jose A. Aumentado
Bloch oscillations in nanoscale Josephson junctions with a Coulomb charging energy comparable to the Josephson coupling energy are explored within the context of a model previously considered by Geigenmüller and Schön that includes Zener tunneling and

Narrowband Optomechanical Refrigeration of a Chiral Bath

August 7, 2017
Author(s)
Jacob M. Taylor, Kim Seunghwi, Xu Xunnong, Gaurav Bahl
The transport of sound and heat, in the form of phonons, is fundamentally limited by disorder-induced scattering. In electronic and optical settings, introduction of chiral transport - in which carriers have unidirectional propagation - provides robustness

Temperature extrapolation of multicomponent grand canonical free energy landscapes

August 7, 2017
Author(s)
Nathan Mahynski, Jeffrey R. Errington, Vincent K. Shen
We derive a method for extrapolating the grand canonical free energy landscape of a multicomponent fluid system from one temperature to another. Previously, we introduced this statistical mechanical framework for the case where kinetic energy contributions

Metagenomic assembly through the lens of validation: a review of recent advances in assessing and improving the quality of genes and genomes assembled from metagenomes.

August 6, 2017
Author(s)
Nathanael Olson, Chris M. Hill, Vistoria Cepeda-Espinoza, Jay Ghurye, Sergey Koren, Todd J. Treangen, Mihai Pop
Metagenomic samples are snapshots of complex ecosystems at work. These samples often involve hundreds of bacteria from known and unknown species, contain multiple strain variants, and vary greatly both within and across environments. Many microbes found in

Heron Quadrilaterals via Elliptic Curves

August 5, 2017
Author(s)
Farzali Izadi, Foad Khoshnam, Dustin Moody
A Heron quadrilateral is a cyclic quadrilateral with rational area. In this work, we establish a correspondence between Heron quadrilaterals and a family of elliptic curves of the form y^2=x^3+\alpha x^2-n^2 x. This correspondence generalizes the notions

3.5 GHz Radar Waveform Capture at Fort Story

August 4, 2017
Author(s)
Paul D. Hale, Jeffrey A. Jargon, Peter J. Jeavons, Michael R. Souryal, Adam J. Wunderlich, Mark Lofquist
We describe measurements to create a library of high-fidelity waveforms of federal incumbent radar signals currently operating in the 3550 MHz – 3650 MHz (“3.5 GHz”) band. In this second phase of assembling the library, measurements were collected at Fort

Identifying Vulnerable Populations to Death and Injuries from Residential Fires

August 4, 2017
Author(s)
Stanley W. Gilbert, David T. Butry
Residential fire casualty risk is a function of an individual’s exposure risk and vulnerability. The previous literature focuses on measuring correlations between socioeconomic factors and casualties, and identifies at-risk population. This study controls

Microanalysis: What Is It, Where Did It Come From, and Where Is It Going?

August 4, 2017
Author(s)
Dale E. Newbury
"Microanalysis" in the parlance of the Microanalysis Society (MAS) refers to spatially-resolved elemental and molecular analysis performed at the micrometer to nanometer to picometer scales by any combination of excitation and analytical spectrometry that

Multiple method analysis of TiO2 nanoparticles uptake, accumulation and effects in rice (Oryza sativa L.) plants

August 4, 2017
Author(s)
Yinqging Deng, Elijah Petersen, Katie Challis, Savelas A. Rabb, Richard D. Holbrook, James Ranville, Bryant C. Nelson, Baoshan Xing
Understanding the translocation of nanoparticles (NPs) into plants is challenging because quantitative and qualitative methods are still being developed and the comparability of results among different methods is unclear. In this study, the uptake of NPs
Displaying 13176 - 13200 of 73697
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