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Estimation of the Stability of a River Island and Its Suitability for Installing Solar Based Power Plant in Bangladesh

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Journal of Geoscience and Environment Protection 2024年第11期12卷 51-72页

作者： Md. Golam Muktadir Md. Muhtasim Billah anika samm-a Farzana Rahman Nusrat Jahan Shimu Mahmudul Hasan Intehum Taufique Aurnab Mehedi Hasan Peas Department of Environmental Science Bangladesh University of Professionals (BUP) Dhaka Bangladesh Department of Disaster Science and Climate Resilience University of Dhaka Dhaka Bangladesh Development & Production Division Bangladesh Oil Gas & Mineral Corporation (Petrobangla) Dhaka Bangladesh Department of Oceanography University of Dhaka Dhaka Bangladesh Bangladesh Space Research and Remote Sensing Organization (SPARRSO) Dhaka Bangladesh

Bangladesh, situated in tropical and subtropical regions, receives significant amount of solar energy, making it an ideal location for solar energy production. However, determining suitable sites in the country for solar based power plant establishment turns out to be a difficult task given its dense population. This study aims to the identification of such a potential site by assessing the stability of the Jamuna river Island to be proposed as a site for developing solar based power plant. The research concentrates on Fulchhari union of Gaibandha district, one of the three major islands in the Jamuna river, utilizing two GIS-based multi-criteria decision-making (MCDM) techniques. One is Digital Shoreline Analysis System (DSAS) for stability analysis, and another is Analytical Hierarchy Process (AHP) for suitability evaluation. For the stability analysis of the island, Landsat satellite imagery of 1990, 1995, 2000, 2005, 2010, 2015 and 2020 covering a long term of 30 years period were investigated. Based on average change rates, the bankline of the island was divided into 2 accretion zones in the south and south-eastern direction, and 8 erosion zones. Along with the bankline changes, climatological, geomorphological, and environmental factors have been adopted to modeling process for suitability analysis. The optimal locations for solar based power plants have been demonstrated by a suitability map, where high and standard potential area is about 60% of the area of Fulchhari union. Production may be enhanced up to 5 times more with the consideration of utilizing the moderate optimum zone.

关键词： Jamuna River Island GIS-DSAS GIS-AHP Stability Suitability

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Changes during Cooking Processes in 6 Varieties of Andean Potatoes (<i>Solanum tuberosum</i>ssp. Andinum)

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American Journal of Plant Sciences 2015年第5期6卷 725-736页

作者： Maria E. Jimenez Analia M. Rossi Norma C. sammán Instituto Superior de Investigaciones Biológicas (INSIBIO) CONICET-UNT e Instituto de Química Biológica “Dr. Bernabé Bloj” Facultad de Bioquímica Química y Farmacia UNT Chacabuco Tucumán Argentina

The value of the native potato varieties grown in Argentinean northwest lies both in their fundamental role as a source of food for the population and in their potential for the development of new products. The aim of this work was to study the changes produced by two common cooking processes (boiling and frying) on the nutritional, textural and functional characteristics of five Andean potatoes varieties. The cooking process (boiling) does not significantly affect the composition of potatoes, but there are losses of vitamin C;a greater loss was observed when they were boiled shelled. In frying potatoes vitamin C is completely destroyed. Resistant starch values between 0.90 and 4.58 g/100g of potato were found for raw Andean varieties;they decreased during the cooking process (boiled) (0.15 to 0.54 g/100g of potato) and increased again to be stored for 48 h at 4°C (0.73 - 1.88 g/100g of potato). The frying process produced an increment in energy value between 92% and 148% according to variety. Regarding to the fracture strength and hardness, no significant differences were observed between the Andean varieties and the control (Spunta) at the initial or final stages, but there were differences during the intermediate stages.