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You searched on: Author: daniel hussey

Displaying records 11 to 20 of 41 records.
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11. In Situ Neutron Techniques for Studying Lithium Ion Batteries
Published: 5/1/2012
Authors: Howard Wang, Robert G Downing, Joseph A. Dura, Daniel S Hussey
Abstract: We review {I}in situ{/I} neutron techniques for studying lithium ion batteries. Four neutron measurement techniques, neutron depth profiling (NDP), neutron reflectivity (NR), small angle neutron scattering (SANS), and neutron imaging (NI) are discus ...

12. Neutron Imaging of Lithium Concentration in Battery Pouch Cells
Published: 3/23/2011
Authors: Daniel S Hussey, David L Jacobson, Jason B. Siegel, C. Di Stefan, Xinfan Lin, David Gorsich
Abstract: This paper shows how neutron radiography can be used for in situ quantification of the lithium concentration across battery electrodes, a critical physical system state. The change in lithium concentration between the charged and discharged state ...

13. Changing Optical Axis Due To Reactor Operation
Published: 1/12/2011
Authors: Daniel S Hussey, David L Jacobson, Elias M Baltic
Abstract: During reactor operation, the neutron flux distribution is modified by the reactor control mechanisms, in the case of the reactor at the National Institute of Standards and Technology, this is determined by the angular position of the Cd shim arm ...

Published: 1/11/2011
Authors: David L Jacobson, Richard Fu, Takeshi Shiomi, Ugur Pasaogullari, Joshua Preston, Shinichi Miyazaki, Yuichiro Tabuchi, Daniel S Hussey
Abstract: A fundamental experimental and numerical study of the water transport across a perfluorosulfonic acid (PFSA) membrane under a temperature gradient is presented. The water transport phenomenon was experimentally investigated through water flux mea ...

15. Neutron radioscopy: industrial and scientific applications
Published: 3/15/2010
Authors: Daniel S Hussey, Michael A. Hickner
Abstract: Neutron imaging has been a unique, precise, measurement tool for water transport in proton exchange membrane fuel cells (PEMFCs), enabling the direct measurement of the water distribution in standard, commercially viable fuel cell hardware. Thus, in ...

16. Electrically‹stimulated gradients in water and counterion concentrations within electroactive polymer actuators
Published: 2/1/2010
Authors: Jong Keun Park, Paul J. Jones, Chris Sahagun, Kirt A. Page, Daniel S Hussey, David L Jacobson, Sarah E Morgan, Robert B Moore
Abstract: While ionic polymer metal composites (IPMCs) have been studied for more than 10 years, the specific actuation mechanism is still unclear. In this work, neutron imaging, applied potential (AP) and current sensing (CS) atomic force microscopy (AFM) me ...

17. Observations of Transient Flooding in a Proton Exchange Membrane Fuel Cell Using Time-Resolved Neutron Radiography
Published: 11/10/2009
Authors: Michael A Hickner, Nathan P. Siegel, Ken S Chen, Daniel S Hussey, David L Jacobson
Abstract: The generation and transport of water in both the liquid and gas phases during device operation is an important area of study to understand both steady-state and transient performance of proton exchange membrane fuel cells. Specifically, localized h ...

18. Erratum: Precision Measurement of the n-He3 Incoherent Scattering Length Using Neutron Interferometry [Phys. Rev. Lett. 102, 200401 (2009)]
Published: 10/23/2009
Authors: Michael G Huber, Muhammad Arif, T C Black, W.C. Chen, Thomas R Gentile, Daniel S Hussey, Dmitry Pushin, Fred Eberhardt Wietfeldt

19. Use of Neutron Imaging for PEMFC Performance Analysis and Design
Published: 3/1/2009
Authors: T Trabold, Jon P Owejan, Jeffrey J Gagliardo, David L Jacobson, Daniel S Hussey, Muhammad Arif
Abstract: Efficient water management is one of the key design objectives for proton exchange membrane fuel cells (PEMFCs), due to the influence of water on material selection, hardware configuration, and stack operating conditions. Neutron imaging has proven t ...

20. Statistical Learning Methods for Neutron Transmission Tomography of Fuel Cells
Published: 7/8/2008
Authors: Kevin J Coakley, Dominic F. (Dominic F.) Vecchia, Daniel S Hussey
Abstract: In a fuel cell, water is formed as a by-product of the reaction between hydrogen and oxygen. As a neutron beam passes through a fuel cell, it can undergo s-wave scattering. For the dry and wet states of a fuel cell, there are spatially varying neutro ...

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