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Displaying 17651 - 17675 of 73929

Proximity-Driven Enhanced Magnetic Order at Ferromagnetic-Insulator-Magnetic-Topological Insulator Interface

August 17, 2015
Author(s)
Mingda Li, Cui-Zu Chang, Brian Kirby, Michelle E. Jamer, Wenping Cui, Lijun Wu, Peng Wei, Yimei Zhu, Don Heiman, Ju Li, Jagadeesh S. Moodera
Magnetic exchange driven proximity effect at a magnetic insulator/topological insulator (MI/TI) interface provides a rich playground for novel phenomena as well as a way to realize low energy dissipation quantum devices. Here we report a dramatic

Technical Basis for User Interface Design of Health IT

August 17, 2015
Author(s)
Michael E. Wiklund, Jonathan Kendler, Limor Hochberg, Matthew B. Weinger
This document is intended to help EHR developers plan and implement a user-centered design for their EHR systems. It includes user interface design principles that are customized for EHR environment. Specifically, it provides: (1) Descriptions of the

Using the Amplitude Variation of a Reverberation Chamber Channel to Predict the Synchronization of a Wireless Digital Communication Test System

August 16, 2015
Author(s)
Ray R. Tanuhardja, Luis A. Gonzalez, Chih-Ming Wang, William F. Young, Kate Remley
This contribution discusses the use of a metric based on the amplitude variation of a channel in the signal bandwidth to predict whether or not a digital wireless communication test system receiver will be able to demodulate a test signal. This metric is

In-Situ Method for Measuring the Mechanical Properties of Nafion Thin Films during Hydration Cycles

August 15, 2015
Author(s)
Kirt A. Page, Jae W. Shin, Scott Eastman, Brandon W. Rowe, Sangcheol Kim, Ahmet Kusoglu, Kevin G. Yager, Gery R. Stafford
Perfluorinated ionomers, in particular Nafion, are an essential component in hydrogen fuel cells, as both the proton exchange membrane and the binder within the catalyst layer. During normal operation of a hydrogen fuel cell the ionomer will progressively

SOLAR-WIND ION DRIVEN X-RAY EMISSION FROM COMETARY AND PLANETARY ATMOSPHERES: MEASUREMENTS AND THEORETICAL PREDICTIONS OF CHARGE- EXCHANGE CROSS SECTIONS AND EMISSION SPECTRA FOR O6+ + H2O, CO, CO2, CH4, N2, NO, N2O, AND Ar

August 15, 2015
Author(s)
J. R. Machacek, D. P. Mahapatra, David R. Schultz, Yuri Ralchenko, A. Moradmand, O. E. Ghazaly, A. Chutjian
Relevant to modeling and understanding X-ray emission from cometary and planetary atmospheres, total cross sections for 1.17 and 2.33 keV/u O6+ colliding with H2O, CO, CO2, CH4, N2, NO, N2O, and Ar have been measured for the processes of single, double

Experiments with highly-ionized atoms in unitary Penning traps

August 14, 2015
Author(s)
Shannon Hoogerheide, Aung Naing, Joan M. Dreiling, Samuel Brewer, Nicholas D. Guise, Joseph Tan
Highly-ionized atoms with special properties have been proposed for interesting applications, including potential candidates for a new generation of optical atomic-clocks at the 1 part in 1019 level of precision, quantum-information processing, and tests

Frequency-tunable Superconducting Resonators via Nonlinear Kinetic Inductance

August 13, 2015
Author(s)
Michael Vissers, Johannes Hubmayr, Jiansong Gao, Martin Sandberg, Saptarshi Chaudhuri, Clint Bockstiegel
We have designed, fabricated and tested a frequency-tunable high-Q superconducting resonator made from niobium titanium nitride film. The frequency tunability is achieved by injecting a DC current through a special current-directing circuit into the

Implementing and Managing Policy Rules in Attribute Based Access Control

August 13, 2015
Author(s)
Chung Tong Hu, David F. Ferraiolo, David R. Kuhn, Raghu N. Kacker, Yu Lei
Attribute Based Access Control (ABAC) is a popular approach to enterprise-wide access control that provides flexibility suitable for today's dynamic distributed systems. ABAC controls access to objects by evaluating policy rules against the attributes of

Physical implementation of coherently-coupled oscillator networks

August 13, 2015
Author(s)
Matthew R. Pufall, William H. Rippard, Gyorgy Csaba, Wolfgang Porod, George Bourianoff, Dmitri Nikonov
We present a combined experimental and simulation study of the physical implementation of coherently coupled oscillator networks composed of spin-torque oscillators (STOs). Based on published works and on our recent experiments, we review the behavior of

Uncoordinated Scheduling Strategies for BAN-to-BAN Interference Mitigation

August 13, 2015
Author(s)
Kamran Sayrafian, Martina Barbi, Mehdi Alasti
A Body Area Network (BAN) is a radio standard for wireless connectivity of wearable and implantable sensors located inside or in close proximity to the human body. Medical and some other applications impose stringent constraints on battery powered BAN

A Flexible Microporous Hydrogen-Bonded Organic Framework for Gas Sorption and Separation

August 12, 2015
Author(s)
Hailong Wang, Bin Li, Hui Wu, Tong-Liang Hu, Zizhu Yao, Wei Zhou, Shengchang Xiang, Banglin Chen
A microporous three-dimensional hydrogen-bonded organic framework (HOF-5) has been constructed from a new organic linker 4,4'r", r"'(2,4-diamino-1,3,5-triazin-6-yl)tetraphenylethene. Activated HOF-4a exhibits a stepwise N 2 adsorption isotherm at 77 K

Additive Manufacturing Round Robin Protocols: A Pilot Study

August 12, 2015
Author(s)
Shawn P. Moylan, Joshua Land, Antonio M. Possolo
As the number of users of additive manufacturing (AM) steadily increases, and considering their demand for material and process specifications, the need for standard protocols for round robin studies is increasing accordingly. Researchers at the National

Tolerance Specification and Related Issues for Additively Manufactured Products

August 12, 2015
Author(s)
Gaurav Ameta, Robert R. Lipman, Paul W. Witherell, Shawn P. Moylan
Additive manufacturing (AM) has gained increased attention in the last decade as a versatile manufacturing process for customized products. AM process can create complex free-form shapes, internal cavities and lattices, which are either not feasible or
Displaying 17651 - 17675 of 73929
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