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Displaying 15526 - 15550 of 73893

Signatures of intracrystallite and intercrystallite limitations of charge transport in polythiophenes

September 20, 2016
Author(s)
Kiarash Vakhshouri, Brandon Smith, Edwin Chan, Chenchen Wang, Alberto Salleo, Cheng Wang, Alexander Hexemer, Enrique Gomez
Charge carrier mobilities in conjugated semicrystalline polymers depend on morphological parameters such as crystallinity, crystal orientation, and connectivity between ordered regions. Despite recent progress in the development of conducting polymers, the

Spintronic nanodevices for bioinspired computing

September 20, 2016
Author(s)
Julie Grollier, Damien Querlioz, Mark D. Stiles
The challenge of fabricating bio-inspired hardware is building ultra-high density networks out of complex processing units interlinked by tunable connections. Nanodevices exploiting spin electronics (or spintronics) can be a key technology in this context

Spintronics

September 20, 2016
Author(s)
Hideo Ohno, Mark D. Stiles, Bernard Dieny
Scope: This special issue covers recent developments in spintronics, where the spin degree of freedom of electrons is used to harness otherwise inaccessible capabilities. We have witnessed a wide range of progress, particularly in the past 10 years

A Q-band free-space characterization of carbon nanotube composites

September 19, 2016
Author(s)
Ahmed M. Hassan, Jan Obrzut, Edward Garboczi
We present a free-space measurement technique for non-destructive non-contact electrical and dielectric characterization of nano-carbon composites in the Q-band frequency range of 30 GHz to 50 GHz. The experimental system and error correction model

Compressed-Liquid Densities of Three Reference Fuels for Combustion Testing

September 19, 2016
Author(s)
Stephanie L. Outcalt
Compressed-liquid densities of three aviation fuels have been measured with a vibrating-tube densimeter. The measurements were made from 270 K to 470 K, and 0.5 MPa to 45 MPa and have an overall combined uncertainty of 0.81 kg.m-3. The data from each of

Long term stability of ultra high molar mass polyethylene fibres

September 19, 2016
Author(s)
Amanda Forster, Aaron Forster, Joannie Chin, Sylvain H. Petit, Kai-Li Kang, Nicholas G. Paulter Jr., Kirk D. Rice, Don Jenket II, Mohamad Al-Sheikhly
Abstract. The performance of ultra-high molar mass polyethylene (UHMMPE) fibres for ballistic protection is predicated on the development of a highly aligned molecular structure that allows the polymer to exhibit a superior strength in the axial direction

The Center for Research on Extreme Batteries

September 19, 2016
Author(s)
Eric Wachsman, Cynthia Lundgren, Esther S. Takeuchi, Kang Xu, Chunsheng Wang, Joseph Dura, David L. Jacobson, Kahlil Amine, William Acker
How much would you spend on a battery if your life depended on it? Rarely is that question asked as the vast majority of battery development is focused on bringing down battery cost for wide spread consumer acceptance. However, for many industries

Towards Building Simulation Tools for Next Generation Soft Body Armour Testing Standards

September 18, 2016
Author(s)
Steven P. Mates, Amanda L. Forster, Michael A. Riley, Kirk D. Rice, Juliana Ivancik
Accurate simulation tools for soft body armour testing would vastly improve test designer's ability to optimize and refine standards by supplying quantitative information about the influence of test variables on test outcomes. Such tools would also

Giant Electromechanical Coupling of Relaxor Ferroelectric Controlled by Polar Nanoregion Dynamics

September 16, 2016
Author(s)
Michael E. Manley, Douglas L. Abernathy, Raffi Sahul, Daniel E. Parshall, Jeffrey W. Lynn, Andrew D. Christianson, Paul J. Stonaha, Eliot D. Specht, John D. Budai
Ferroelectric relaxors are inhomogeneous materials prized for their giant electromechanical coupling, which has revolutionized sensor and ultrasound applications, but is not well understood. It has been attributed to critical points in the phase diagram

Interaction of aerosol particle with a standing wave optical field

September 16, 2016
Author(s)
John J. Curry
Trajectories of spherical dielectric particles carried across an optical standing wave by a flowing medium areinvestigated. Trajectories are determined by a three-dimensional Monte Carlo calculation that includes drag forces, Brownian motion, and optical

Spin Transport at Interfaces with Spin-orbit Coupling: Formalism

September 16, 2016
Author(s)
Vivek P. Amin, Mark D. Stiles
Spin transport remains poorly understood in multilayer systems with interfacial spin-orbit coupling. Currently, drift-diffusion models cannot accurately treat this phenomenon, since the important consequences of interfacial spin-orbit scattering remain

Spin Transport at Interfaces with Spin-Orbit Coupling: Phenomenology

September 16, 2016
Author(s)
Mark D. Stiles, Vivek P. Amin
Spin transport remains poorly understood in multilayer systems with interfacial spin-orbit coupling. While the important consequences of interfacial spin-orbit scattering can be captured by a spin-dependent Boltzmann equation, currently they cannot be

X-ray Powder Diffraction Reference Patterns for Bi1-xPbxOCuSe

September 16, 2016
Author(s)
Winnie K. Wong-Ng, Yonggao Yan, James A. Kaduk, Xinfeng Tang
The structures and powder X-ray reference diffraction patterns of the ‘natural superlattice’ series Bi1-xPbxOCuSe (x=0, 0.02, 0.04, 0.06, 0.08 and 0.1) have been investigated. As the ionic radius of Pb2+ is greater than that of Bi3+, the unit cell volume

Application of the advanced distillation curve method for the characterization of two alternative transportation fuels prepared from the pyrolysis of polyethylene bags*

September 15, 2016
Author(s)
Thomas J. Bruno, Megan E. Harries, B. K. Sharma, Bidhya Kunwar
The properties of alternative fuels must be evaluated to determine their suitability for use in existing engines, either as blends with conventional petroleum products or as stand-alone substitutions (that is, drop in replacements). Alternative fuels made

Code-division-multiplexed readout of large arrays of TES microcalorimeters

September 15, 2016
Author(s)
Kelsey M. Morgan, Bradley K. Alpert, Douglas A. Bennett, William B. Doriese, Joseph W. Fowler, Johnathon D. Gard, Gene C. Hilton, Kent D. Irwin, Young Il Joe, Galen C. O'Neil, Carl D. Reintsema, Edward V. Denison, Daniel R. Schmidt, Joel N. Ullom, Daniel S. Swetz
Code-division multiplexing (CDM) offers a path to reading out large arrays of transition edge sensor (TES) X-ray micro-calorimeters with excellent energy and timing resolution. We demonstrate the readout of X-ray TESs with a 32-channel flux-summed code
Displaying 15526 - 15550 of 73893
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