Results 51 to 60 of about 96,800 (307)

Theoretical Spectra of Terrestrial Exoplanet Surfaces [PDF]

, 2012
We investigate spectra of airless rocky exoplanets with a theoretical framework that self-consistently treats reflection and thermal emission. We find that a silicate surface on an exoplanet is spectroscopically detectable via prominent Si-O features in ...
Batalha, Best, Bethany L. Ehlmann, Borucki, Borucki, Cheek, Clark, Clark, Cochran, Cowan, de Pater, Drilling, Farmer, Gautier, Koch, Miller-Ricci, Muirhead, Pieters, Pieters, RELAB Spectral Database, Renyu Hu, Rogers, Salisbury, Sara Seager, Seager, Seager, Sobolev, Sprague, Winn   +28 more
core   +2 more sources

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

A Portable Spectropolarimeter for Field Crop Canopies: Distinguishing species and cultivars of fully developed canopies by polarized light

Plant Production Science, 2002
A spectropolarimeter equipped with eight spectral bands in the visible, near– and short–wave infrared ranges (490–2200 nm) as well as a rotary film polarizer has been developed for measuring the reflectance and degree of polarization of light reflected ...
Michio Shibayama, Shigeo Akita
doaj   +1 more source

Optimization of moth-eye antireflection schemes for silicon solar cells

, 2010
Nanostructured moth-eye antireflection schemes for silicon solar cells are simulated using rigorous coupled wave analysis and compared to traditional thin film coatings. The design of the moth-eye arrays is optimized for application to a laboratory cell (
Bagnall, Darren, Boden, Stuart
core   +1 more source

ExploreNEOs. II. The Accuracy of the Warm Spitzer Near-Earth Object Survey [PDF]

, 2011
We report on results of observations of near-Earth objects (NEOs) performed with the NASA Spitzer Space Telescope as part of our ongoing (2009-2011) Warm Spitzer NEO survey ("ExploreNEOs"), the primary aim of which is to provide sizes and albedos of some
Bhattacharya, B., Bottke, W. F., Chesley, S., Delbo, M., Emery, J. P., Fazio, G., Harris, A. W., Hora, J. L., Mainzer, A., Mommert, M., Mueller, M., Penprase, B., Smith, H. A., Spahr, T. B., Stansberry, J. A., Thomas, C. A., Trilling, D. E.   +16 more
core   +4 more sources

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Fog Detection Based on Meteosat Second Generation-Spinning Enhanced Visible and InfraRed Imager High Resolution Visible Channel

Remote Sensing, 2018
In this study, the Meteosat Second Generation (MSG)—Spinning Enhanced Visible and Infrared Imager (SEVIRI) High Resolution Visible channel (HRV) is used in synergy with the narrow band MSG-SEVIRI channels for daytime fog detection. A new algorithm, named
Saverio Teodosio Nilo, Filomena Romano, Jan Cermak, Domenico Cimini, Elisabetta Ricciardelli, Angela Cersosimo, Francesco Di Paola, Donatello Gallucci, Sabrina Gentile, Edoardo Geraldi, Salvatore Larosa, Ermann Ripepi, Mariassunta Viggiano   +12 more
doaj   +1 more source

Contact cleaning of polymer film solar reflectors [PDF]

, 2015
This paper describes the accelerated ageing of polymer film reflecting surfaces under the conditions to be found during contact cleaning of Concentrating Solar Power (CSP) collectors in the presence of dust and sand particles.
Almond, Heather, Fernandez-Garcia, Aranzazu, King, Peter, Martinez-Arcos, Lucia, Sansom, Christopher, Sutter, Florian   +5 more
core   +3 more sources

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

Simplified Set-Up for Near-Specular Solar Reflectance Measurement

SolarPACES Conference Proceedings
In Concentrating Solar Power (CSP) plants, mirrors are used to redirect solar radiation onto a receiver. More precisely, the solar radiation, diverging with a half-angle of about 4.7 mrad, impinges off-normal on the mirror.
Marco Montecchi, Florian Sutter, Johannes Wette   +2 more
doaj   +1 more source