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Displaying 776 - 800 of 1184

Accurate measurement of the through-plane water content of proton-exchange membranes using neutron radiography

April 21, 2021
Author(s)
Daniel S. Hussey, David L. Jacobson, Dusan Spernjak, Adam Weber, Rangachary Mukundan, Joseph Fairweather, Eric Brosha, John Davey, Jacob Spendelow, Rodney Borup
The water sorption of proton-exchange membranes (PEMs) was measured in situ using high-resolution neutron imaging in small-scale fuel-cell test sections. A detailed characterization of the measurement uncertainties and corrections associated with the

High-throughput Density Functional Perturbation Theory and Machine Learning Predictions of Infrared, Piezoelectric and Dielectric Responses

May 27, 2020
Author(s)
Kamal Choudhary, Kevin F. Garrity, Vinit Sharma, Adam J. Biacchi, Francesca M. Tavazza, Angela R. Hight Walker
In this work, combining high-throughput (HT) density functional perturbation theory and supervised machine learning approaches, we explored the territory of compounds with interesting infrared, piezoelectric and dielectric properties. We have computed Γ

Materializing Rival Ground States in the Barlowite Family of Kagome Magnets: Quantum Spin Liquid, Spin Ordered, and Valence Bond Crystal States

April 14, 2020
Author(s)
Rebecca W. Smaha, Wei He, Jack Mingde Jiang, JiaJia Wen, Yi-Fan Jiang, John P. Sheckelton, Charles J. Titus, Suyin Grass Wang, Yu-Sheng Chen, Simon J. Teat, Adam A. Aczel, Yang Zhao, Guangyong Xu, Jeffrey W. Lynn, Hong-Chen Jiang, Young S. Lee
… ground state. The magnetic response is compared to Cu 3.05 Zn 0.95 (OH)FBr (powder) and herbertsmithite (powder and …

Ultrathin Interfacial Layer with Suppressed Room Temperature Magnetization in Magnesium Aluminum Ferrite Thin Films

September 24, 2019
Author(s)
Jacob J. Wisser, Satoru Emori, Lauren Riddiford, Aaron Altman, Peng Li, Krishnamurthy Mahalingam, Brittany T. Urwin, Brandon M. Howe, Michael R. Page, Alexander Grutter, Brian Kirby, Yuri Suzuki
Low-damping magnetic oxide thin films with small thicknesses are essential for efficient insulator spintronic devices, particularly those driven by spin torques effects. Here, we investigate depth-resolved compositional and magnetic properties of epitaxial

Methodology for Multipath-Component Tracking in Millimeter-Wave Channel Modeling

March 1, 2019
Author(s)
Chiehping Lai, Roy Sun, Camillo Gentile, Peter B. Papazian, Jian Wang, Jelena Senic
In this paper, we describe an extensive channel-measurement campaign - including 325 unique transmitter-receiver configurations - conducted in a lecture room with our 3D double- directional 60-GHz channel sounder. The receiver was mounted on a mobile robot

H 2 Adsorption on Cu(I)-SSZ-13

January 11, 2018
Author(s)
Bahar Ipek, Rachel A. Pollock, Craig Brown, Deniz Uner, Raul F. Lobo
… We report H 2 adsorption capacities reaching 0.05 mass% (wt. %) at 303 K and 1 atm H 2 pressure on …

Defect Structures Produced in Silicon and MgO by Nanoindentation

February 19, 2017
Author(s)
B Hockey
TEM has been used to characterize residual defect structures produced in 111} Si and 001] MgO by Berkovich nanoindentation at loads ranging from 5 mN to 0.1 mN. The plane-section observations provide a description of the primary defects, found to be

Robust Upward Dispersion of the Neutron Spin Resonance in the Heavy Fermion Superconductor Ce 1-x Yb x CoIn 5

September 28, 2016
Author(s)
Yu Song, John Van Dyke, I. K. Lum, B. D. White, L. Shu, A. Schneidewind, Petr Cermak, Yiming Qiu, M. B. Maple, Dirk K. Morr, Pengcheng Dai
… to the d(s +-1 )-wave symmetry of the superconducting gap [7, 12, 13] or an over damped spin-wave-like excitation … 15], there is no consensus on its micrscopic origin [2, 7, 8, 10]. Here we use inelastic neutron scattering to … heavy fermion superconductor Ce 1-x Yb x CoIn 5 with x = 0.05, 0.03 [4, 12, 16] has a ring-like upward dispersion, …

Sub-Femto-g Free Fall for Space-Based Gravitational Wave Observatories: LISA Pathfinder Results

June 7, 2016
Author(s)
Michele Armano, Heather Audley, Gerard Auger, Jonathon Baird, Massimo Bassan, Pierre Binetruy, Michael Born, Daniele Bortoluzzi, Nico Brandt, Antonella Cavalleri, Andrea Cesarini, Giacomo Ciani, Giuseppe Congedo, Mike Cruise, Karsten Danzmann, Marcus de Deus Silva, Rosario De Rosa, Marc Diaz Aguilo, Luciano Di Fiore, Ingo Diepholz, George Dixon, Rita Dolesi, Luigi Ferraioli, Valerio Ferroni, Walter Fichter, Reinhold Flatscher, Antonio F. Garcia Marin, Cesar Garcia Marirrodriga, Ruediger Gerndt, Ferran Gibert, Domenico Giardini, Roberta Giusteri, Felipe Guzman, Aniello Grado, Catia Grimani, Adrien Grynagier, Jonathan Grzymisch, Ian Harrison, Gerhard Heinzel, Martin Hewitson, Daniel Hollington, David Hoyland, Mauro Hueller, Henri Inchauspe, Oliver Jennrich, Philippe Jetzer, Ulrich Johann, Bengt Johlander, Nico Karnesis, Natalia Korsakova, Christian Killow, Alberto Lobo, Ivan Lloro, Li Liu, Juan P. Lopez Zaragoza, Rolf Maarschalkerweerd, Davor Mance, Victor Martin, Luis Martin Polo, Joseph Martino, Fernando Martin Porqueras, Sean Madden, Ignacio Mateos, Paul McNamara, Jose Mendes, Luis Mendes, Anneke Monsky, Daniele Nicolodi, Miquel Nofrarias, Sarah Paczkowski, Michael Perreur-Lloyd, Antoine Petiteau, Paolo Pivato, Eric Plagnol, Pierre Prat, Ulrike Ragnit, Boutheina Rais, Juan Ramos Castro, Jens Reiche, David I. Robertson, Hans Rozemeijer, Francisco Rivas, Giuliana Russano, Josep Sanjuan, Paolo Sarra, Alexander Schleicher, Diana Shaul, Jacob Slutsky, Carlos Sopuerta, Ruggero Stanga, Frank Steier, Damien Texier, James I. Thorpe, Christian Trenkel, Hai-Bo Tu, Daniele Vetrugno, Stefano Vitale, Vinzenz Wand, Gudrun Wanner, Henry Ward, C Warren, Peter Wass, David Wealthy, William J. Weber, Lennart Wissel, Andreas Wittchen, Andrea Zambotti, Carlo Zanoni, Tobias Ziegler, Peter Zweifel
… with g the standard gravity, for frequencies between 0.7 and 20 mHz. This value is lower than the LISA Pathfinder …

On-chip CO2 control for microfluidic cell culture

January 1, 2011
Author(s)
Samuel P. Forry, Laurie E. Locascio
… control channels across the device. Elevated PCO2 (e.g. 0.05 atm) was modulated in neighboring stagnant channels via … This strategy was utilized to demonstrate long-term (> 7 days) microfluidic culture of mouse fibroblasts under …

Novel Reduced Pressure-Balance Syringe for Chromatographic Analysis

November 19, 2010
Author(s)
Bret Windom, Thomas J. Bruno
When withdrawing a fluid sample from an apparatus at reduced pressures for additional chromatographic analyses, a gas tight plunger syringe proves ineffective as it does not create a substantial pressure differential to pull a fluid from a reduced pressure

Hydrocarbon Liquid Flow Calibration Service

November 25, 2009
Author(s)
Tsyh Tyan Yeh, Jesus J. Aguilera, John D. Wright
… The range of flows for this facility is 0.19 L/min to 5.7 L/min (0.05 gal/min to 1.5 gal/min). Over this range, the expanded …

Nanoindentation of Si Nanostructures: Buckling and Friction at Nanoscales

September 18, 2009
Author(s)
Huai Huang, Bin Li, Qiu Zhao, Zhiquan Luo, Jay Im, Min Kang, Richard A. Allen, Michael W. Cresswell, Rui Huang, Paul S. Ho
… sidewalls and the aspect ratio (height/linewidth) from 7 to 18. During indentation, a buckling instability was … coefficient was estimated to be in a range of 0.02 to 0.05. For experiments with large indentation displacements, … with the strain to failure estimated to be from 3.8% to 9.7%. These observations indicated that the buckling behavior …

Reference measurements of Hydrogen's Dielectric Permittivity

August 10, 2009
Author(s)
James W. Schmidt, Michael R. Moldover, Eric F. May
… permittivity ε r of H 2 at frequencies from 2.4 GHz to 7.3 GHz, at pressures up to 6.5 MPa, and at the temperatures … virial coefficient, b ε,H2 = (0.03plus or minus}0.05) cm 3 mol -1 , a property that has not yet been calculated. …
Displaying 776 - 800 of 1184
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