Results 71 to 80 of about 24,229 (264)

Reference solar irradiance spectra and consequences of their disparities in remote sensing of the ocean colour [PDF]

Annales Geophysicae, 2007
Satellite ocean colour missions require a standard extraterrestrial solar irradiance spectrum in the visible and near-infrared (NIR) for use in the process of radiometric calibration, atmospheric correction and normalization of water-leaving radiances
P. Shanmugam, Y. H. Ahn
doaj   +1 more source

Solar total irradiance in cycle 23 [PDF]

Astronomy & Astrophysics, 2011
The apparently unusual behaviour of the TSI during the most recent minimum of solar activity has been interpreted as evidence against solar surface magnetism as the main driver of the secular change in the TSI. We test claims that the evolution of the solar surface magnetic field does not reproduce the observed TSI in cycle 23.
Krivova N.A., Solanki S.K., Schmutz W.
openaire   +4 more sources

Hydrogen (H2) Recovery From Hydrogen Sulfide (H2S): Current Technologies, Challenges, and Future Outlook

Advanced Science, EarlyView.
ABSTRACT Hydrogen sulfide (H2S) can be transformed into hydrogen (H2) through several chemical and catalytic processes, offering a promising route for both waste treatment and clean H2 production. This colorless, flammable, and toxic gas is found abundantly in swamps, volcanoes, hot springs, sewages, other natural gas fields, and even in refineries and
Divyesh Cirikonda, Astrid Campos‐Mata, Sehmus Ozden, Shreyasi Chattopadhyay, Pulickel M. Ajayan   +4 more
wiley   +1 more source

Study of variability metrics for solar irradiance and photovoltaic output

, 2017
Two variability metrics, i.e., universal variability index (UVI) and natural variability index (NVI) for solar irradiance and PV output are examined in this paper using high resolution irradiance measurement data of a PV farm over three years.
Yi Cui, Liu, Yilu, Smith, David, Yilu Liu, Su, Yu, Yong Liu, Liu, Yong, Yu Su, Cui, Yi, David Smith   +9 more
core   +1 more source

Solar rotational modulations of spectral irradiance and correlations with the variability of total solar irradiance [PDF]

Journal of Space Weather and Space Climate, 2016
Aims: We characterize the solar rotational modulations of spectral solar irradiance (SSI) and compare them with the corresponding changes of total solar irradiance (TSI). Solar rotational modulations of TSI and SSI at wavelengths between 120 and 1600 nm are identified over one hundred Carrington rotational cycles during 2003–2013.
Lee Jae N., Cahalan Robert F., Wu Dong L.   +2 more
openaire   +2 more sources

Multi‐scale Optimization on Interfacial Evaporative Cooling for Photovoltaic Performance Enhancement

Advanced Science, EarlyView.
This study presents a passive siphon‐driven interfacial evaporative cooling technology for photovoltaics. A multiscale multiphysics model is developed and validated experimentally. Results show that optimizing installation parameters reduces operating temperature by up to 22.3 °C and boosts power efficiency by 8.9%, offering a practical pathway for ...
Fuxiang Li, Haosheng Lin, Zengguang Sui, Yunren Sui, Zhixiong Ding, Wei Wu   +5 more
wiley   +1 more source

Highly Efficient and Environmentally Stable Radiative Cooling Fabric: Integrating Photoluminescence and Hierarchical Core–Shell Fibers

Advanced Science, EarlyView.
A scalable radiative cooling fabric engineered with a multi‐layer assembly core–shell structure and integrated photoluminescent materials is reported. The fabric exhibits remarkable environmental stability, including UV resistance, mechanical durability, hydrophobicity, stain resistance, thermal stability, and flame retardancy, demonstrating its ...
Hongtao Liu, Hui Li, Yining Wang, Wei Sun, Zhuan Chen, Yongping Hou, Yongmei Zheng, Xuejian Chen, Bin Yu   +8 more
wiley   +1 more source

Forecasting Hourly Solar Irradiance Using Hybrid Wavelet Transformation and Elman Model in Smart Grid

IEEE Access, 2019
With the integration of photovoltaic (PV) power into an electrical network, the complexity of the grid management is increasing because of intermittent and fluctuation nature of solar energy.
Xiaoqiao Huang, Junsheng Shi, Bixuan Gao, Yonghang Tai, Zaiqing Chen, Jun Zhang   +5 more
doaj   +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., Mekaoui, S., Joukoff, A., Dewitte, S.   +3 more
core  

Self‐Adaptive Non‐Flammable Wallpaper With Layered Bead‐Network Structure for Light Path Modulation Enabling on‐Demand Building Thermal Management

Advanced Science, EarlyView.
A layered bead‐network wallpaper is designed to modulate the light propagation path, overcoming the color residue limitations of thermochromic components for efficient automatic switching between radiative cooling and solar heating modes. The layered bead‐network wallpaper provides passive, all‐season thermal regulation while offering self‐cleaning and
Jianyu Wu, Linmin Xia, Jiankun Wu, Yuying Yang, Wuhong Zhong, Jianguo Li, Yan Yu, Rilong Yang   +7 more
wiley   +1 more source