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This paper studies some weighted norm inequalities related to some Calderon-Zygmund singular integrals. Applications to the Sobolev-Gagliardo-Nirenberg inequality, differential forms, and the potential equation du= f are given.

This paper involves an action research that aims at encouraging teachers to investigate the benefits of using the Online Communities of Practice to boost their professionalism and adopt them. Besides, This study seeks to provide a conceptualization…

CuInSe2 thin films (CIS) are fabricated by flash evaporation in vaccum from a single source. Their optical properties are investigated by spectrophotometry in the range 0.3-2.5 . The interpretation of these results are based on the Mueller numerical…

CuInSe2 thin films (CIS) are fabricated by flash evaporation in vaccum from a single source. Their optical properties are investigated by spectrophotometry in the range 0.3-2.5 . The interpretation of these results are based on the Mueller numerical…

Mircocrystalline silicon solar cells based on pin and nip layer sequences require an effective light trapping in the near infrared (NIR) to enhance the long wavelength spectral response. Therefore, the effect of interface roughness on the optical…

Mircocrystalline silicon solar cells based on pin and nip layer sequences require an effective light trapping in the near infrared (NIR) to enhance the long wavelength spectral response. Therefore, the effect of interface roughness on the optical…

An optimization method is proposed and applied to study a PV-electrolyzer system consisting of Solarex MSX60 modules and PEM electrolyser H-Tec StaXX7 stacks. A total of 41 series-parallel combinations of PV modules and electrolyser stacks were…

An optimization method is proposed and applied to study a PV-electrolyzer system consisting of Solarex MSX60 modules and PEM electrolyser H-Tec StaXX7 stacks. A total of 41 series-parallel combinations of PV modules and electrolyser stacks were…

Carbon production is growing globally, with energy-related carbonemissions accounting for two-thirds of global emissions. Generatingcarbon-neutral hydrogen from renewable energy is a significantachievement toward a circular economy in this industry.…

Due to the increase of the demand for electrical power and the gaining of momentum of decentralized electrical production, the importance of microgrids is increasing constantly. Therefore, it is pertinent to understand how microgrids work and develop…
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