Results 41 to 50 of about 1,308,589 (302)

Optimal Design of Aperture Illuminations for Microwave Power Transmission with Annular Collection Areas

Engineering, 2023
This work presents an optimal design method of antenna aperture illumination for microwave power transmission with an annular collection area. The objective is to maximize the ratio of the power radiated on the annular collection area to the total ...
Xun Li, Baoyan Duan, Yiqun Zhang, Yongxin Guo   +3 more
doaj   +1 more source

Solar energy collection system [PDF]

, 1977
An improved solar energy collection system, having enhanced energy collection and conversion capabilities, is delineated. The system is characterized by a plurality of receivers suspended above a heliostat field comprising a multiplicity of reflector ...
Selcuk, M. K.
core   +1 more source

Col-OSSOS: Colors of the Interstellar Planetesimal 1I/`Oumuamua [PDF]

, 2017
The recent discovery by Pan-STARRS1 of 1I/2017 U1 (`Oumuamua), on an unbound and hyperbolic orbit, offers a rare opportunity to explore the planetary formation processes of other stars, and the effect of the interstellar environment on a planetesimal ...
Bannister, Michele T., Benecchi, Susan D., Fitzsimmons, Alan, Fraser, Wesley C., Kavelaars, J. J., Lacerda, Pedro, Lehner, Matthew J., Marsset, Michael, Pike, Rosemary E., Schwamb, Megan E., Smith, Adam B., Stewart, Sunny O., Wang, Shiang-Yu   +12 more
core   +2 more sources

Odyssey: a solar system mission [PDF]

Experimental Astronomy, 2008
revision with Experimental Astronomy Referee comments, correction of typographic errors, add of bibliographic reference, modification of authors list,
Christophe, Bruno, Andersen, P. H., Anderson, J. D., Asmar, S., Bério, Ph., Bertolami, O., Bingham, R., Bondu, François, Bouyer, Philippe, Bremer, S., Courty, J-M., Dittus, H., Foulon, B., Gil, P., Johann, U., Jordan, J. F., Kent, B., Lämmerzahl, C., Lévy, A., Métris, G., Olsen, O., Páramos, J., Prestage, J. D., Progrebenko, S. V., Rasel, E., Rathke, A., Reynaud, S., Rievers, B., Samain, E., Sumner, T. J., Theil, S., Touboul, Pierre, Turyshev, S., Vrancken, P., Wolf, P., Yu, N.   +35 more
openaire   +5 more sources

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

Research on Multi-Scenario Variable Parameter Energy Management Strategy of Rural Community Microgrid

Applied Sciences, 2020
Many rural communities in western China use renewable energy-based clean energy supply methods, and the community microgrid system of “photovoltaic + energy storage + electric heating” has been widely used. However, the energy management effect of such a
Lidong Guo, Zilong Yang, Yibo Wang, Honghua Xu   +3 more
doaj   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Planetary Mass Spectrometry for Agnostic Life Detection in the Solar System

Frontiers in Astronomy and Space Sciences, 2021
For the past fifty years of space exploration, mass spectrometry has provided unique chemical and physical insights on the characteristics of other planetary bodies in the Solar System.
Luoth Chou, Luoth Chou, Paul Mahaffy, Melissa Trainer, Jennifer Eigenbrode, Ricardo Arevalo, William Brinckerhoff, Stephanie Getty, Natalie Grefenstette, Natalie Grefenstette, Victoria Da Poian, G. Matthew Fricke, Christopher P. Kempes, Jeffrey Marlow, Barbara Sherwood Lollar, Heather Graham, Sarah Stewart Johnson   +16 more
doaj   +1 more source

Solar energy control system [PDF]

, 1981
A solar energy control system for a hot air type solar energy heating system wherein thermocouples are arranged to sense the temperature of a solar collector, a space to be heated, and a top and bottom of a heat storage unit is disclosed.
Currie, J. R.
core   +1 more source

Band Alignment in In‐Oxo Metal Porphyrin SURMOF Heterojunctions

Advanced Functional Materials, EarlyView.
Porphyrin core metalation in indium‑oxo SURMOFs enables systematic tuning of band edge positions without altering the crystal structure. First‑principles calculations reveal type‑I and type‑II heterostructures as well as multi‑junction energy cascades, establishing a modular strategy for exciton funneling and charge separation in optoelectronic ...
Puja Singhvi, Nina Vankova, Thomas Heine
wiley   +1 more source