Solar plants are exposed to the appearance of faults in some their components, as they vulnerable action external agents (wind, rain, dust, birds …) and internal defects. However, it is necessary ensure a satisfactory operation when these factors affect plant. Fault detection diagnosis methods essential detecting locating faults, maintaining efficiency safety This work proposes methodology for ...

Solar thermal collectors, such as flat plate and evacuated tube are used for maximum of 60–80 °C temperature parabolic trough collectors 700–900 ranges. It is needed to develop analyze solar compound (CPC) which can operate in an intermediate range from 50–300 industrial domestic applications. However, optical performance CPC strongly influenced by concentration ratio. The current study present...

Introduction: The Genesis mission collected solar wind for 27 months at Earth-Sun L1 on both passive and active collectors carried inside of a Science Canister, which was cleaned and assembled in an ISO Class 4 cleanroom prior to launch. The primary passive collectors, 271 individual hexagons and 30 half-hexagons of semiconductor materials, are described in [1]. Since the hard landing reduced t...

OBJECTIVES To prospectively assess respiratory health in wastewater workers and garbage collectors over 5 years. METHODS Exposure, respiratory symptoms and conditions, spirometry and lung-specific proteins were assessed yearly in a cohort of 304 controls, 247 wastewater workers and 52 garbage collectors. Results were analysed with random coefficient models and linear regression taking into ac...

Linear quasi-parabolic integro-differential equations and their control appear in many scientific problems and engineering applications such as biology mechanics, nuclear reaction dynamics, heat conduction in materials with memory, and visco-elasticity, etc.. The existence and uniqueness of the solution of the linear quasi-parabolic integro-differential equations have been studied by Wheeler M....