3 research outputs found

    The Detection of IVT Over Iraq and Surrounding Region and the links to Precipitation Over Iraq

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    This study examines the impact of low-level vertically integrated moisture flux (IVT) features on precipitation in Iraq and surrounding areas during the rainy season. The study calculates and analyzes the IVT across the region. It identifies the maximum precipitation linked with IVT from January to December (1981-2020). In addition, it determines the IVT threshold for each month using wind component data (u, v) and specific humidity data. The findings reveal that IVT has a greater impact in dry and semi-arid areas, the Mediterranean Sea and the Red Sea are the main sources of IVT. The Red Sea has an impact on Iraqs south and south-central region while the Mediterranean Sea has an impact on Iraqs north and north- central region. The study also finds a strong correlation between IVT and precipitation over Iraq during the rainy season with the amount of precipitation largely influenced by the intensity and direction of IVT. The results suggest that IVT transfer from the Mediterranean and Red Seas has a significant impact on the amount of precipitation over Iraq and the neighboring areas

    Highest Efficiency of Perovskite Structure Solar Cells

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    Perovskite solar cells are the most promising photovoltaic technology in the current generation due to their rapid rise in efficiency (high absorption and large diffusion length), availability Initial the materials, low cost, easy to manufacture under very normal conditions, and high yield. This work concerned about modeled Titanium dioxide-based perovskite simulation model with FTO / TiO2 / CH3NH3PbI3 / NiO/Pt and used the solar cell capacitance simulator (SCAPS-1D) for analyzed. In this study NiO we used as Hole Transport Layer (HTM), TiO2as electron Transport Material (ETL) and CH3NH3PbI3 is the perovskite absorber. We study effects for change of the thicknesses for CH3NH3PbI3 absorber material and NiO as the (HTM) layer, TiO2 as the (ETL) layer, addition to environment temperature and work function on the major parameters of our device solar cells. The effected thickness of CH3NH3PbI3 various from (0.05 to 0.8) μm and the best efficiency are observed at 0.05 μm. When using the best thickness for layer CH3NH3PbI3 efficiency is constant at variant temperatures

    Genetic case-based reasoning for improved mobile phone faults diagnosis

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    Different types of fault diagnostic applications that utilize case-based reasoning (CBR) are applied in the diagnosis process. However, CBR cannot provide solutions to unanticipated or unknown problems. Therefore, further investigation of the retrieval and revision mechanisms of CBR is essential in improving the diagnosis accuracy and precision of the method. This study proposes a hybrid scheme that combines the genetic algorithm and CBR (GCBR) to improve CBR diagnosis. CBR applies experience and knowledge on existing cases of fault diagnosis to newly provided cases. The genetic algorithm aggregates and revises relevant cases to provide solutions to unknown cases. GCBR is implemented in a mobile phone fault diagnosis application. This domain is a good testing environment because mobile phones are of various types and models. Test results show that GCBR can detect several mobile phone faults with average accuracy 98.7%
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