Results 51 to 60 of about 323,327 (303)

Global Solar Radiation Prediction for Makurdi, Nigeria Using Feed Forward Backward Propagation Neural Network [PDF]

Journal of Renewable Energy and Environment, 2018
The optimum design of solar energy systems strongly depends on the accuracy of  solar radiation data. However, the availability of accurate solar radiation data is undermined by the high cost of measuring equipment or non-functional ones.
Aondoyila Kuhe, Victor Terhemba Achirgbenda, Mascot Agada   +2 more
doaj   +1 more source

A non-parametric method for correction of global radiation observations [PDF]

, 2013
This paper presents a method for correction and alignment of global radiation observations based on information obtained from calculated global radiation, in the present study one-hour forecast of global radiation from a numerical weather prediction (NWP)
Bacher, Peder, Madsen, Henrik, Nielsen, Henrik Aalborg, Perers, Bengt   +3 more
core   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

Machine learning approach for solar irradiance estimation on tilted surfaces in comparison with sky models prediction

Журнал інженерних наук, 2022
In this study, two supervised machine learning models (Extreme Gradient Boosting and K-nearest Neighbour) and four isotropic sky models (Liu and Jordan, Badescu, Koronakis, and Tian) were employed to estimate global solar radiation on daily data measured
Mbah O. M., Madueke C. I., Umunakwe R., Okafor C. O.   +3 more
doaj   +1 more source

Global patterns, trends, and drivers of water use efficiency from 2000 to 2013 [PDF]

, 2015
Water use efficiency (WUE; gross primary production [GPP]/evapotranspiration [ET]) estimates the tradeoff between carbon gain and water loss during photosynthesis and is an important link of the carbon and water cycles.
Guo, Qinghua, Li, Le, Otto, Alvarez, Tao, Shengli, Xiao, Jingfeng, Xue, Bao-Lin   +5 more
core   +2 more sources

Ultrastable Photoactive Halide Perovskite Nanocrystal‐Sensitized SnO2 Nanorods for Room‐Temperature NO2 Detection

Advanced Functional Materials, EarlyView.
ABSTRACT Metal oxide (MOx)‐based NO2 gas sensors typically require high temperatures or ultraviolet light, limiting their practical use. To enable visible‐light activation at room temperature, efficient and stable photosensitizers should be integrated with nanostructured MOx hosts.
Yeonji Yuk, Dokyum Kim, Jun‐Cheol Park, Yoonsung Jung, Inhyeok Oh, Donghyeon Lee, Yejoon Kim, Ji‐Eun Yeo, Young Min Song, Chang‐Lyoul Lee, Sanghan Lee   +10 more
wiley   +1 more source

Direct radiation estimates from horizontal global irradiance values [PDF]

, 1999
One of the main factors determining the economic feasibility of a solar thermal power plant is the availability of direct radiation at the plant site. During last years, two Central Receiver Power Plants (Solgas and Colon Solar) have been proposed in ...
Fernández, V., Rosa Iglesias, Manuel Felipe, Ruiz Hernández, Valeriano, Silva Pérez, Manuel Antonio   +3 more
core   +1 more source

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

Advanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum, Vinavadini Ramnarain, Nathaly Ortiz Peña, Dris Ihiawakrim, Clément Sanchez, Ovidiu Ersen   +5 more
wiley   +1 more source

Monthly average daily diffuse solar radiation in Poland within the period 2005–2015

ITM Web of Conferences, 2018
In this paper an 11-year series of daily values of diffuse solar radiation registered at 8 actinometric stations in Poland was used to describe the characteristics of diffuse radiation and diffuse fraction of global radiation for the area of Poland ...
Kleniewska Małgorzata, Mitrowska Dorota, Chojnicki Bogdan H.   +2 more
doaj   +1 more source

Modeling the Effects of Global and Diffuse Radiation on Terrestrial Gross Primary Productivity in China Based on a Two-Leaf Light Use Efficiency Model

Remote Sensing, 2020
Solar radiation significantly affects terrestrial gross primary productivity (GPP). However, the relationship between GPP and solar radiation is nonlinear because it is affected by diffuse radiation.
Yanlian Zhou, Xiaocui Wu, Weimin Ju, Leiming Zhang, Zhi Chen, Wei He, Yibo Liu, Yang Shen   +7 more
doaj   +1 more source