Results 51 to 60 of about 327,954 (318)
A review of solar collectors and thermal energy storage in solar thermal applications [PDF]
, 2013 Thermal applications are drawing increasing attention in the solar energy research field, due to their high performance in energy storage density and energy conversion efficiency. In these applications, solar collectors and thermal energy storage systems
Zhao, Changying +3 more
core +1 more source
Advanced Functional Materials, EarlyView.Solvent vapor annealing enables kinetic control of additive‐free morphology in organic solar cells. Selective plasticization of acceptor forms an optimal fibrillar network, boosting efficiency to 19.06% (binary) and 19.75% (ternary), with ultrafast exciton dissociation and reduced recombination.
Jie Lv +20 more
wiley +1 more source
Ozone chemical equilibrium near the Martian nighttime OH* layer: observational constraints
Earth, Planets and SpaceSimultaneous measurements of ozone concentrations and vibrationally excited hydroxyl (OH*) emissions provide a method for determining atomic oxygen (O) and atomic hydrogen (H) concentrations, which are otherwise difficult to measure directly.
Dmitry S. Shaposhnikov +3 more
doaj +1 more source
Influence of gravity waves on the climatology of high-altitude Martian carbon dioxide ice clouds [PDF]
Annales Geophysicae, 2018 Carbon dioxide (CO2) ice clouds have been routinely observed in the middle atmosphere of Mars. However, there are still uncertainties concerning physical mechanisms that control their altitude, geographical, and seasonal distributions.
E. Yiğit, A. S. Medvedev, P. Hartogh
doaj +1 more source
Advanced Functional Materials, EarlyView.Redox dual‐defects (Cs substitution and O vacancies) in 2D hydrated WO3 steer O2 activation toward selective singlet oxygen evolution. WO‐CO achieves 8.6–15.8 times higher 1O2 production than single‐defect or pristine catalysts, enabling efficient pollutant mineralization via a pathway‐selective photocatalytic mechanism.
Sheng‐Qi Guo +8 more
wiley +1 more source
Methane Clathrates in the Solar System [PDF]
Astrobiology, 2015 We review the reservoirs of methane clathrates that may exist in the different bodies of the Solar System. Methane was formed in the interstellar medium prior to having been embedded in the protosolar nebula gas phase. This molecule was subsequently trapped in clathrates that formed from crystalline water ice during the cooling of the disk and ...
Mousis, O. +10 more
openaire +4 more sources
Advanced Functional Materials, EarlyView.Bandgap‐engineered AlGaAs/GaAs heterostructures exhibit wavelength‐selective dual‐polarity photoelectrochemistry, switching from photocathodic to photoanodic response depending on excitation wavelength. The polarity transition is governed by band‐selective absorption, built‐in electric‐field‐driven carrier transport, and interfacial charge‐transfer ...
Yukai Mao +9 more
wiley +1 more source
Ceres: Organic‐Rich Sites of Exogenic Origin?
AGU AdvancesCeres, the largest object in the asteroid belt, is the only potential ocean world in the inner Solar System. Previous studies identified deposits of aliphatic organics in and around the Ernutet crater, and at small locations at Inamahari and Urvara ...
R. Sarkar +9 more
doaj +1 more source
Cyclic sunspot activity during the first millennium CE as reconstructed from radiocarbon
Astronomy & AstrophysicsContext. Solar activity, dominated by 11-year cyclic evolution, has been observed directly since 1610 CE. Indirect cosmogenic proxy data have been used to reconstruct solar activity for millennia prior to 1610.
Usoskin I. +3 more
doaj +1 more source
Spectral analysis for wide energy channels [PDF]
Geoscientific Instrumentation, Methods and Data Systems, 2013 For energetic particle measurements whose spectra follow a power law, it is often challenging to define a characteristic ("effective") energy of an energy channel.
E. A. Kronberg, P. W. Daly
doaj +1 more source