Results 81 to 90 of about 8,944 (306)

Temperature‐ and Light‐Regulated Liquid Crystal Smart Window for Dynamic Control of Daylight and Solar Heat in All‐Weather Conditions

Angewandte Chemie, EarlyView.
An environmentally adaptive smart window based on the interplay of light‐driven molecular motors and liquid crystal (LC) polymers is developed. The window can dynamically switch among three distinct working states: transparent, reflective, and scattering, depending on ambient temperature and solar light intensity, enabling excellent modulation of ...
Yang Zhang, Ying Wu, Wenxuan Liu, Xin Wang, Dirk J. Broer, Ben L. Feringa, Jiawen Chen   +6 more
wiley   +2 more sources

Correlations between Total and Spectral Solar Irradiance Variations

The Astrophysical Journal
We compare short-term (seven solar rotations), wavelength-dependent temporal variations in spectral solar irradiance (SSI) with those from the total solar irradiance (TSI). Using space-based measurements, we empirically find good correlations across most
Greg Kopp, Nina-Elisabeth Nèmec, Alexander Shapiro   +2 more
doaj   +1 more source

Multivariate analysis of solar spectral irradiance measurements [PDF]

Journal of Geophysical Research: Atmospheres, 2001
Principal component analysis is used to characterize approximately 7000 downwelling solar irradiance spectra retrieved at the Southern Great Plains site during an Atmospheric Radiation Measurement (ARM) shortwave intensive operating period. This analysis technique has proven to be very effective in reducing a large set of variables into a much smaller ...
M. Rabbette, P. Pilewskie
openaire   +1 more source

Making of a solar spectral irradiance dataset I: observations, uncertainties, and methods

, 2016
International audienceContext. Changes in the spectral solar irradiance (SSI) are a key driver of the variability of the Earth's environment, strongly affecting the upper atmosphere, but also impacting climate.
Dudok de Wit, Thierry, Margit Haberreiter, Matthieu Kretzschmar, Haberreiter, Margit, Schöll, Micha, Thierry Dudok de Wit, Kretzschmar, Matthieu, Micha Schöll   +7 more
core   +1 more source

Closed‐Loop Radiative Cooling Mulch Upcycled From Agricultural Residues for Efficient Soil Heat–Water Stress Mitigation

Advanced Science, EarlyView.
Conventional passive radiative cooling films rely on costly feedstocks and energy‐intensive fabrication, with poor end‐of‐life compatibility in agriculture. To address this challenge, a sustainable radiative cooling mulch (SRCM) is developed from waste maize leaves via spontaneous hydrogen‐bond self‐assembly.
Hao Li, Dong Lv, Yang Fu, Cancheng Jiang, Wenqi Wang, Ze Li, Lin Liang, Jiayu Du, Jie Tan, Yihao Zhu, Wenjie Liu, Lamfeddal Kouisni, Kaixin Lin, Chi Yan Tso   +13 more
wiley   +1 more source

Enhancing Hyperlocal Wavelength-Resolved Solar Irradiance Estimation Using Remote Sensing and Machine Learning

Remote Sensing
Accurate characterization of surface solar irradiance at fine spatial, temporal, and spectral resolution is central to applications such as solar energy and environmental monitoring.
Vinu Sooriyaarachchi, Lakitha O. H. Wijeratne, John Waczak, Rittik Patra, David J. Lary, Yichao Zhang   +5 more
doaj   +1 more source

Increased efficiencies on CdTe solar cells via luminescence down-shifting with excitation energy transfer between dyes

, 2012
The external quantum efficiencies of CdTe solar cells fabricated by the atmospheric pressure metal organic chemical vapour deposition (AP–MOCVD) method have been measured with one and two dye doped luminescence down-shifting (LDS) layers on top ...
S.J.C. Irvine, Markvart, T., T. Markvart, L. Danos, Irvine, S.J.C., Parel, T., Barrioz, V., Irvine, S. J. C., Brooks, William, Markvart, Tom, Parel, Thomas, Barrioz, Vincent, Brooks, W. S. M., T. Parel, Markvart, Tomas, Danos, L., V. Barrioz, Danos, Lefteris, Brooks, W.S.M., Irvine, Stuart, W.S.M. Brooks   +20 more
core   +1 more source

TSIS-1 SIM L3 V06 Solar Spectral Irradiance

, 2021
NASA's Total and Spectral Solar Irradiance Sensor -1 (TSIS-1) operates on the International Space Station. TSIS-1 provides absolute measurements of the total solar irradiance (TSI) and spectral solar irradiance (SSI), important for ...
Richard, Erik, Charbonneau, Luke, Béland, Stéphane, Chambliss, Michael, Medley, Gavin, Sandoval, Laura, Penton, Steven   +6 more
core   +1 more source

Intrinsic Coupling of Radiative Cooling and Triboelectric Responses in Dual‐Function ZrO2 Nanocomposites for Adaptive Thermoregulation

Advanced Science, EarlyView.
A novel nanocomposite design strategy utilizes ZrO2 to intrinsically couple passive daytime radiative cooling and triboelectric functionality within a single material platform. Fabricated via direct ink writing, the multifunctional breathable architecture provides effective sub‐ambient cooling, motion‐driven energy harvesting, and adaptive ...
Yoon Young Choi, Pranto Karua, Md Salauddin, Lili Cai   +3 more
wiley   +1 more source

Solar UV Spectral Irradiance Variations

Journal of geomagnetism and geoelectricity, 1991
Recent measurements of the relative temporal variations of solar UV radiation are reviewed. The long-term increase in solar UV irradiance during the rise of solar cycle 22 through April 1990 is comparable to the decrease from the solar cycle 21 peak in late 1981 to the 1986 minimum.
openaire   +2 more sources