Results 31 to 40 of about 35,054 (353)
Estimation of phytoplankton concentration from downwelling irradiance measurements in water
, 2012 The downwelling irradiance spectrum is so far not used directly for the determination of water constituents, mainly due to the large and unpredictable fluctuations of the underwater light field induced by the water surface.
Gege, Peter
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Journal of Space Weather and Space ClimateThe Total Solar Irradiance (TSI) is an important input for the Earth’s climate. To describe the competing contributions of sunspots and faculae on irradiance variability, the San Fernando Observatory (SFO) irradiance model has two components: One ...
Chapman Gary A. +2 more
doaj +1 more source
Computation of irradiance in a solar still by using a refined algorithm
, 2013 A refined solar algorithm from the ESP-r system has been used to calculate the distribution of solar irradiation inside a basin-type solar still. In the approach, surface finish, view factors and multiple reflections are taken into consideration in the ...
Clarke, Joseph Andrew, Madhlopa, Amos
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Solar irradiance in clear atmosphere: study of parameterisations of change with altitude [PDF]
Advances in Science and Research, 2011 Parameterisation of changes of the solar irradiance at ground level with a specific variable (e.g. solar zenithal angle, aerosol optical depth, altitude, etc.) is often used in operational processes because it saves computational time.
A. Oumbe +6 more
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Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells
Advanced Functional Materials, EarlyView.ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf +4 more
wiley +1 more source
Measurement and Uncertainty of the Long-Term Total Solar Irradiance
, 2021 A possible long term trend of the total solar irradiance could be a natural cause for climate variations on Earth. Measurement of the total solar irradiance with space radiometers have started in 1978.
Crommelynck, D. +3 more
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Magnitudes and timescales of total solar irradiance variability
Journal of Space Weather and Space Climate, 2016 The Sun’s net radiative output varies on timescales of minutes to gigayears. Direct measurements of the total solar irradiance (TSI) show changes in the spatially- and spectrally-integrated radiant energy on timescales as short as minutes to as long as a
Kopp Greg
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Advanced Functional Materials, EarlyView.Metasurfaces and other structured photonic environments can dramatically modify the absorption and/or light emission of semiconductors. However, the consequences of these changes on the temperature of the system are not well understood. The authors address this problem for colloidal nanocrystals and leverage their findings to convert light into ...
Hugo Kowalczyk +7 more
wiley +1 more source
Solar Radiation Prediction Based on Convolution Neural Network and Long Short-Term Memory
Energies, 2021 Photovoltaic power generation is highly valued and has developed rapidly throughout the world. However, the fluctuation of solar irradiance affects the stability of the photovoltaic power system and endangers the safety of the power grid.
Tingting Zhu +3 more
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Advanced Functional Materials, EarlyView.An architecture‐enabled bottom‐heated 3D solar convective evaporator spatially decouples photothermal heating from evaporation, triggering natural convection that intensifies sidewall vapour removal and heat transfer. The system achieves significantly enhanced evaporation rates over 2D and conventional 3D designs while confining salt precipitation to ...
Xiaolong Ma +7 more
wiley +1 more source