Economic Feasibility of Hydroponics Production System under Polyhouse: A Case Study in Gazipur, Bangladesh

Corresponding Author : Farzana Raihan (fraihan-for@sust.edu)

Abstract :

Hydroponics system is more input-intensive that requires a large amount of investment than the conventional crops production system. There is a need for economic analysis of the hydroponics for emerging growers in Bangladesh. The study aims to find out the economic feasibility of this production system and compare it with the traditional system. To do so, this study employed the case-study methodology to evaluate the profitability and feasibility of the farm, which uses this system. A thorough inspection of costs…

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Sacred places and spiritual beliefs can enhance biodiversity conservation: a case study from the north-eastern Bangladesh

Corresponding Author : Fahmida Sultana (fahmida-fes@sust.edu)

Abstract :

Conservation of biological diversity is one of the most challenging issues in the present era. The role of religious beliefs in conserving biodiversity is well appreciated and religious institutions are often integrated into the conservation action plans. However, we still lack an explicit understanding of the efficacy of these religious institutions and different beliefs in conserving biodiversity. We collected vegetation and animal data from the sacred places of north-eastern Bangladesh. Key respondents survey was also carried out to understand the…

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Determination of Genetic Diversity among Local Mandarin Oranges (Citrus reticulata) Using Mature Seed Derived Calli through RAPD Markers

Corresponding Author : Hammadul Hoque (hammadul-geb@sust.edu)

Abstract : Orange (Citrus reticulata) is cultivated at several districts of Bangladesh but the genetic diversity among cultivars is still unknown. This research aimed to find out the diversity among locally grown nine mandarin orange (C. reticulata) cultivars. For this purpose, calli were initiated and used as a source for genomic DNA. Murashige and Skoog (MS) medium supplemented with phytohormones (2,4-dichlorophenoxyacetic acid, benzyl adenine, 1-naphthalene acetic acid, kinetin, indole-3-butyric acid) and malt extract were used for calli induction. DNA extracted from the…

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Finite element algorithm for solving one-dimensional Richards’ equation

Corresponding Author : M. Sayful Islam (sayful-mat@sust.edu)

Abstract :

Accurate, efficient, robust, and stable numerical solution of Richards’ equation for variably saturated-unsaturated water flow through porous media is an extremely challenging task for any numerical integrator due to its highly nonlinear behavior. In this study, we have solved a one-dimensional Richards’ equation that frequently describes saturated-unsaturated water flow in homogeneous soil layers. The obtained solution is a set of an ordinary differential equation derived from mass conservation principles. We have used the finite element method for domain discretization of…

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Hydrothermal synthesis of a Novel Transition Metal Oxyfluoride compound containing 2-Methylimidazole: Crystal Structure, and Characterization

Corresponding Author : Belal Ahmed (belal-che@sust.edu)

Abstract :

Novel Molybdenum oxyfluoride compound [Zn(C4H6N2)4][MoO2F4] consisting of tetrahedral [Zn(C4H6N2)4]2+ cation, and octahedral [MoO2F4]2- anion have been successfully synthesized by a hydrothermal method in acidic conditions. Single crystal X-ray diffraction analysis confirms that the synthesized compound crystallized in the monoclinic space group, P2/c, and reveals a pseudo–one-dimensional structure through the strong inter-ionic hydrogen bonding interactions. The oxide and fluoride atoms form the inter-ionic hydrogen bonding network with the neighboring nitrogen or carbon atoms of the 2-methylimidazole ligand. The hydrogen bond network…

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Construction worker’s safety measures: A comparative risk analysis of construction sites of City Corporation and municipal areas of Bangladesh

Corresponding Author : Towfiqul Islam Khan (khan-gee@sust.edu)

Abstract :

This study assesses the risk status of construction workers at different levels of municipal and local government. Construction workers perform a crucial function for the structural and financial improvement of the country. This area is much less mechanized, but it requires more effort. Security issues are the main topic of this business. Various information has shown that this discipline is incredibly dangerous. This research attempted to evaluate the threat reputation of manufacturing workers at different levels municipal and municipal level…

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