Results 61 to 70 of about 214,049 (180)

UAA Inventory: Greenhouse Gas Emissions From Transportation [PDF]

, 2008
As a signatory of the American College and University Presidents Climate Commitment, UAA has agreed to conduct an inventory of its greenhouse gas (GHG) emissions.
Colt, Steve, Ralph, Kelcie, Szymoniak, Nick   +2 more
core  

Fel Oscillators with Tapered Undulators: Inclusion of Harmonic Generation and Pulse Propagation

, 2011
We review the theory of FEL oscillators operating with tapered undulators. We consider the case of a uniform tapering and introduce a parameter which characterizes the effect of the tapering on the gain and on the saturation intensity.
E. L. Saldin, G. Dattoli, G. Dattoli, P. L. Ottaviani, S. Pagnutti, V. Asgekar, W. B. Colson   +6 more
core   +2 more sources

Optimization of the Shunt Currents and Pressure Losses of a VRFB by Applying a Discrete PSO Algorithm

Batteries
This paper presents an extensive study on the electrochemical, shunt currents, and hydraulic modeling of a vanadium redox flow battery of m stacks and n cells per stack.
Decebal Aitor Ispas-Gil, Ekaitz Zulueta, Javier Olarte, Asier Zulueta, Unai Fernandez-Gamiz   +4 more
doaj   +1 more source

A mirrorless spinwave resonator

, 2015
Optical resonance is central to a wide range of optical devices and techniques. In an optical cavity, the round-trip length and mirror reflectivity can be chosen to optimize the circulating optical power, linewidth, and free-spectral range (FSR) for a ...
Buchler, Ben C., Campbell, Geoff T., Everett, Jesse L., Hosseini, Mahdi, Lam, Ping Koy, Pinel, Olivier   +5 more
core   +1 more source

A tert-butyl functionalized quinone as active material for rechargeable aqueous zinc-ion batteries exhibiting high round-trip efficiency

Future Batteries
The implementation of renewable electricity into the grid requires efficient grid-energy storage systems for balancing supply and demand. Rechargeable zinc-ion batteries (ZIBs) are a low-cost, safe option for grid energy storage; however, challenges ...
Alejandra Ibarra Espinoza, Thomas J. Baker, Storm W.D. Gourley, Caio M. Miliante, Kevin J. Sanders, Zeyuan Liu, Gillian R. Goward, Oleg Rubel, Brian D. Adams, Drew Higgins   +9 more
doaj   +1 more source

A 37.5-kW point design comparison of the nickel-cadmium battery, bipolar nickel-hydrogen battery, and regenerative hydrogen-oxygen fuel cell energy storage subsystems for low Earth orbit [PDF]

Nickel-cadmium batteries, bipolar nickel-hydrogen batteries, and regenerative fuel cell storage subsystems were evaluated for use as the storage subsystem in a 37.5 kW power system for space station.
Hoberecht, M. A., Manzo, M. A.
core   +1 more source

Comparison of acid and alkaline hydrogen-bromine fuel cell systems [PDF]

, 2013
The Conference abstracts' website is located at https://ecs.confex.com/ecs/224/webprogram/Paper20002.htmlSession - Vanadium Redox Systems 2 and Other Redox Systems 1: abstract no. 1674The hydrogen bromine (H2-Br2) fuel cell system is an attractive system
Chan, KY, Li, VCY, Lin, G, Nguyen, TV, Weng, G, Yarlagadda, V   +5 more
core  

Parametric Optimization of RBC-PTES System: Impact on Round-Trip Efficiency and LCOS

Energies
This study presents a comprehensive thermo-economic evaluation of a pumped thermal energy storage (PTES) system based on a supercritical carbon dioxide (s-CO2) recompression Brayton cycle (RBC). A multiparametric analysis was conducted through systematic
Paul Tafur-Escanta, Franco Cabrera-Ortega, Robert Valencia-Chapi, Luis Garzón-Pérez, Solimar Andrade-Terán, Javier Muñoz-Antón   +5 more
doaj   +1 more source

A silicon Brillouin laser

, 2018
Brillouin laser oscillators offer powerful and flexible dynamics as the basis for mode-locked lasers, microwave oscillators, and optical gyroscopes in a variety of optical systems.
Behunin, Ryan O., Kittlaus, Eric A., Otterstrom, Nils T., Rakich, Peter T., Wang, Zheng   +4 more
core   +1 more source

InGaN-LD-Pumped ${\rm Pr}^{3+}$: ${\rm LiYF}_{4}$ Continuous-Wave Laser at 915 nm

IEEE Photonics Journal, 2014
We demonstrate the first InGaN-LD-pumped room temperature and continuous-wave laser operation of a Pr3+: LiYF4 crystal at 915 nm. A maximum output power up to 78 mW with a laser slope efficiency of about 17% is obtained. The round-trip optical losses are
Biao Qu, Bin Xu, Yongjie Cheng, Saiyu Luo, Huiying Xu, Yikun Bu, Patrice Camy, Jean-Louis Doualan, Richard Moncorge, Zhiping Cai   +9 more
doaj   +1 more source