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Weibo Wang, Jianhua Zheng, Chunsheng Jing and Jinping Zhao
A predetermined quanta-to-energy ratio is often used in many ecosystem models to transform photosynthetically radiant flux density into photosynthetic photon flux density when light penetrates seawater. The calculation formula of the ratio is reduced in ...
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Luís Guerra Rosa, José Carlos Garcia Pereira, Kaveh Rahmani, Guilherme De Almeida and Luís F. Santos
This work compares the performance of optical lenses made of silica glass or borosilicate glass (BK-7) when submitted to high-flux radiation emitted by a xenon arc lamp or provided by a high-concentration solar tower. Each irradiation test lasted for 60 ...
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Víctor M. Mendoza,Blanca Mendoza,René Garduño,Guadalupe Cordero,Marni Pazos,Sandro Cervantes,Karina E. Cervantes
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We present a thermodynamic model to simulate the atmospheric temperature and pressure, the regolith temperature and the polar CO2 ice caps vertical thickness and horizontal extent of Mars. This is done using the temperatures of the atmosphere and regolit...
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William Quitiaquez, Eduardo Cortez, Karen Anchapaxi, C.A. Isaza-Roldán, César Nieto-Londoño, Patricio Quitiaquez, Fernando Toapanta-Ramos
This research work presents a detailed description of the flow patterns maps generated in a horizontal pipe of the collector/evaporator of a direct-expansion solar-assisted heat pump, using R600a refrigerant as working fluid. The study was performed in a...
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Daniele Colarossi, Eleonora Tagliolini, Paolo Principi and Roberto Fioretti
This work presents an adjustable large-scale solar simulator based on metal halide lamps. The design procedure is described with regards to the construction and spatial arrangement of the lamps and the designed optical system. Rotation and translation of...
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