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Comparative Study of Solar PV Power Plant Dimensionnement Connected to Network Based on Monofacial and Bifacial Modules

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Journal of Environmental Science and Engineering(A) 2024年第1期13卷 36-44页

作者： DJOSSOU Ayihaou Armand VODOUNNOU Edmond Claude fannou jean louis comlan DANSOU MidokpêRomuald SEMASSOU Guy Clarence HOUNGAN comlan Aristide GUIDI Tognon Clotilde Thierno Amadou Barry Laboratory of Processes and Technological Innovation(LaPIT)/National Higher Institute of Industrial Technology(INSTI)of Lokossa/UNSTIM PB 133-Lokossa(Benin) Laboratory of Energetics and Applied Mechanics(LEMA)/Polytechnic School of Abomey-Calavi(EPAC)/UAC 01 PB 2009-Cotonou(Benin) National Higher School of Energy and Process Engineering(ENSGEP)of Abomey/UNSTIM National Higher School of Technical Education(ENSET)of Lokossa/UNSTIM 不详

This article presents the results of comparative study of two PV solar modules technologies,namely monofacial and *** study main objective is to identify conditions and parameters that make it possible to obtain better energy and economic efficiency from one or other of two *** study reason lies in revival observed on bifacial module in recent years where all the major manufacturers of PV solar panels are developing them where in a few years,this technology risks being at the same price as the monofacial solar panel with better *** indicator used is energy levelized cost(LCOE)which is function technology type,energy productivity,annual investment and operation *** achieve this,a 3.685 MWc solar PV power plant was dimensioned and simulated under Matlab for a 3.5 ha site with a 2,320,740,602 FCFA budget for monofacial installation,against 1,925,188,640 FCFA for 2.73 MWc bifacial *** LCOE comparative analysis of two technologies calculated over a period of 25 years,showed that plant with bifacial panels is more beneficial if bifacial gain is greater than 9%.It has further been found that it is possible to gain up to 40%of invested cost if bifacial gain reaches 45%.Finally,a loss of about 10%of invested cost could be recorded if bifacial gain is less than 9%.

关键词： Solar PV power plant Sizing Monofacial panels Bifacial panels LCOE.

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Irritable Bowel Syndrome in General Population of Cotonou: Prevalence and Associated Factors

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Open Journal of Gastroenterology 2023年第3期13卷 117-130页

作者： comlan N’déhougbèa Martin Sokpon Aboudou Raïmi Kpossou Spéro Ludwig Kpèssou Aden-Henri Rodolph Koffi Vignon jean louis Savi de Tove Akuvi Claude Gildas Adossou Colette Sylvie Azandjèmè jean Séhonou Hepato-Gastroenterology Department National and University Hospital Hubert Koutoukou Maga (CNHU-HKM) Cotonou Benin Clinique Santé du Sud Cotonou Benin Saint Vincent Hospital Worcester USA Regional Institute of Public Health (IRSP) Ouidah Benin

Introduction: Irritable bowel syndrome (IBS) is a known public health burden in western countries while only a few studies have been published on this disease in Africa. The objective of this study was to determine the prevalence of IBS in the general adult population of Cotonou (Benin), its associated risk factors and its impact on patients’ daily life. Method: This was a descriptive and analytical cross-sectional study conducted over one month. Data was collected via a questionnaire. IBS was defined by the Rome IV criteria. Results: A total of 768 participants were included, with a male predominance (sex ratio 1.8). The mean age of the participants was 30.6 years, with extremes of 15 to 76 years. The prevalence of IBS in our study was 4.2%. IBS-D was the most common subtype (34.4%). IBS symptoms were influenced by diet (46.9%), stress (31.3%) and lack of sleep (15.6%). In the univariate analysis, the risk factors associated with IBS were: Dendi and Otamari ethnicity (p = 0.015), low level of education (p = 0.047), family history of IBS (p = 0.026), smoking (p Conclusion: Despite IBS frequency, patients with IBS rarely seek medical attention. The public should therefore be informed about this condition to reduce its impact on their daily life.

关键词： IBS Rome IV Criteria Associated Factors Cotonou Benin

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