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20 results on '"Dowdy, Ryan"'

1. Multi-Domain Operations: Judge Advocate Legal Services' Role in MDO and Bridging the Eighteenth Capability Gap.

Author

Risch, Stuart W. and Dowdy, Ryan B.

Subjects
National security -- Laws, regulations and rules, War (International law) -- Laws, regulations and rules, Military research -- Management, Military law -- Practice, Judge advocates -- Evaluation, United States. Army. Judge Advocate General's Corps -- Evaluation, Government regulation, Company business management
Abstract

The existential threat to the world order is arguably higher than it has been at any point since the end of the Cold War. (1) Russia is conducting a drawn-out, [...]

Published
2022

7. HUMAN RIGHTS CONVERGENCE AND FUTURE DETENTION OPERATIONS IN THE INDO-PACIFIC.

Author

DOWDY, RYAN B.

Subjects
DETENTION of persons, HUMAN rights, MILITARY law, UNITED States military relations
Abstract

The article surveys the legal obligations of U.S. allies in the Indo-Pacific region in detention operations and identifies areas of divergence with the U.S. Department of Defense view. Topics discussed include the detention of individuals classified by the U.S. as unprivileged belligerents, rights of those detained at sea, and the legal posture of New Zealand.

Published
2019

11. GaAs Solar Cells: Doubling the Power Output of Bifacial Thin-Film GaAs Solar Cells by Embedding Them in Luminescent Waveguides (Adv. Energy Mater. 8/2013)

Author

Sheng, Xing, primary, Shen, Ling, additional, Kim, Taehwan, additional, Li, Lanfang, additional, Wang, Xinran, additional, Dowdy, Ryan, additional, Froeter, Paul, additional, Shigeta, Kazuki, additional, Li, Xiuling, additional, Nuzzo, Ralph G., additional, Giebink, Noel C., additional, and Rogers, John A., additional

Published
2013
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17. The Influence of Water Concentration on High-Temperature Reactive Evaporation and Condensation of Cr in 800°C Air

Author

van Leeuwen, Travis Kent, Dowdy, Ryan, Guerrero, Amberly, and Gannon, Paul

Abstract

Reactive evaporation of Cr from stainless steels used in solid oxide electrochemical systems, such as solid oxide fuel cell (SOFC) and solid oxide electrolysis cell (SOEC) systems, is well-documented as the cause of Cr poisoning; however, the condensation and interactions of volatilized Cr species onto and with surrounding interfaces during complex and dynamic system exposures is less understood. Understanding these interactions during operation is critical for improving system performance and safeguarding environmental, health and safety, as some condensed Cr forms toxic hexavalent chromium (Cr(VI)) species. The objective of this study is to investigate and report on condensation pathways of Cr vapors within representative high-temperature system environments. To accomplish this objective, Cr vapors, produced by high-temperature (800°C) air exposures of trivalent chromium (Cr(III)) oxide (Cr2O3) powder with variable moisture content, were condensed onto various ceramic materials at lower temperatures (<400°C). Both the total amount of Cr and ratios of oxidation states were measured using ICP-MS and colorimetric analyses. An increase of Cr condensation was observed with increased water content, with similar Cr(VI) to Cr(III) ratios. Results and interpretations are discussed in context of improved understanding of Cr reactive evaporation and condensation in SOFC/SOEC and related high-temperature materials and systems.

Published
2023
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20. Relationship between planar GaAs nanowire growth direction and substrate orientation.

Author

Dowdy, Ryan S., Walko, Donald A., and Xiuling Li

Subjects
*NANOWIRES, *ELECTRON microscopy, *NANOSTRUCTURED materials, *NANOTECHNOLOGY, *PARTICLES (Nuclear physics)
Abstract

Planar GaAs nanowires are epitaxially grown on GaAs substrates of various orientations, via the Au-catalyzed vapor-liquid-solid mechanism using metal organic chemical vapor deposition. The nanowire geometry and growth direction are examined using scanning electron microscopy and x-ray microdiffraction. A hypothesis relating the planar nanowire growth direction to the surface projections of (111) B crystal directions is proposed. GaAs planar nanowire growth on vicinal substrates is performed to test this hypothesis. Good agreement between the experimental results and the projection model is found. [ABSTRACT FROM AUTHOR]

Published
2013
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