Browsing by Author "Hasan, Md. Hasibul"

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Estimation of the output power of east and west facing pv panel and comparison with south facing pv panel
(University of Dhaka, 2016-10-13) Paul, Rupak; Hasan, Md. Hasibul
In this work, a typical east -west facing solar system has been designed to study the daily and hourly solar radiation of this system and to compare it with a south facing solar system. This study shows that an east-west facing solar panel gives comparatively lower radiation than a south facing solar panel. But the amount of that radiation is significant. Bangladesh is a populated country where price of land is so high. Sometimes it is not possible to set up a solar panel at south facing due to infrastructure limitations. So setting up an east-west solar panel instead of or beside a south facing solar panel could run a solar system more effectively. Using this type of solar system at top of couple roof house will be count as an innovative technology for those who are not able to set up a solar system due to infrastructure limitations. Beside this, an east-west solar system could add extra output with existing solar system and will utilize the limited solar radiation at small area significantly.
Home Somadhan
(Daffodil International University, 2022-03-30) Hasan, Md. Hasibul
This application should be managed by administrator. Who will be create the skilled persons list, maintain the users activity and so on. We’ll include four skills which will be provided. In this project, administrator can manage the user profile. By using this system, user can solve their household related problems. By using this application, user can hire the household problem solver skilled person. It is reallyurgent need for any Home problem when any of household problemsare happened.
Improved Variable Step Length a Search Algorithm for Path Planning of Mobile Robots
(2021 7th International Conference on Advanced Computing and Communication Systems (ICACCS), IEEE, 2021-06-03) Hasan, Md. Hasibul; Ahmed, Md. Razu
The use of Mobile Robots in diverse sectors are increasing day by day. Nowadays, mobile robots are widely used in industrial sectors, but real-time path planning and collision free path tracking raises more challenging issues. A good path planning process for these mobile robots is needed in order for them to perform better. In path planning problems, the A∗ algorithm has been widely investigated and applied, but the cost and efficiency of the path is not completely taken into consideration. This algorithm has been tweaked and improved in a number of ways to facilitate path planning. Taking into account the variable-step-length A∗ search algorithm, which can take steps longer than one. This method uses a fixed step length and produces a better path than the A∗ Search algorithm. However, if the step length can be modified in the process as required, a more optimal direction can be obtained. As a result, this paper proposes an improved updated variable-step-length based A∗ algorithm that can update or change step length. This algorithm will efficiently find a path with a shorter length. In order to check the feasibility and efficiency of the proposed system, simulation and practical experiments are carried out. The findings show that the improved A∗ algorithm will increase the planned route’s safety and efficiency while also reducing the robot’s movement time in difficult terrain.
Improved Variable-Step-Length
(Daffodil International University, 2019-05-02) Hasan, Md. Hasibul
The use of Mobile Robots in different sectors are increasing day by day. Mobile robots are widely used in industrial sectors nowadays. In different rescue missions people use mobile robots. In order to perform better there needs to be a good path planning process for these mobile robots. A very long time ago A* search algorithm was proposed as a better way of finding a path from source to destination. But in today’s world it seems not very likely to perform that better. And for the betterment of path planning this algorithm was modified and improved in many ways. And still the research is going on. One of the research work variablestep-length A* search which can take steps of length larger than one. It produces more optimal path than A* Search. But it uses fixed step length throughout the whole process. But it is possible to get more optimal path if the step length can be changed throughout the process when necessary. So, a modified variable-step-length A* search algorithm is proposed in this research which can update or adjust step length. This algorithm can find a path with less path length.
Study of changing water conflicts and their implications for water security in polder-29
(Institute of Water and Flood Management (IWFM), 2022-07-03) Hasan, Md. Hasibul; Salehin, Dr. Mashfiqus
Water conflicts at the local level have received less attention globally as well as in Bangladesh and have comparatively been less researched. Local level water conflicts, mediated by hydrological, social, economic, institutional, and environmental drivers, are often complex in nature and intensify or change dimensions from one type to another, often deepening social inequality. Hence, these issues warrant more attention from policy makers and water managers. The issues are more prevalent in southwest coastal Bangladesh due to susceptibility to hazards, land use changes, large scale interventions, and conflicting nature of water use practices. This study aimed at identifying the spatial and temporal dynamics of water conflicts and their drivers in a southwest coastal polder, namely Polder-29, and evaluated roles of water security programs and institutional systems in mitigating conflicts. The methodology included application of PRA tools and household survey data to map temporal and spatial variation of drivers and the resulting conflicts, land use change analysis to examine changing nature of conflicts with time, hydrological analysis to elucidate spatially varied nature of conflicts, and application of PRA tools and stakeholder diagramming to map institutional structure, roles, and responsibilities, and to investigate ways to mitigate conflicts. Eight different water conflicts were identified, which include large scale shrimp farming vs agriculture, agriculture vs saltwater shrimp, agriculture vs small-scale freshwater gher, u/s vs d/s conflict, policy level conflicts, institutional conflicts, user vs environment conflicts, and conflicts due to land use change. These conflicts are highly diverse in nature and vary spatially and temporallywith different livelihoods and land use practices. Agriculture vs large-scale brackish shrimp farming was the dominant conflict in the south in 1990s. Even after the exodus of large-scale shrimp farming, this type of conflict is still prevalent in the form of agriculture vs small-scale saltwater shrimp, together with emergence of newer conflicts, e.g., institutional conflicts, and user vs environment conflicts. Marginal and landless people have been most affected by brackish shrimp farming. The northern part saw an extensive increase in small-scale freshwater ghers, leading to discords between farmers and gher owners. Blocked canals by ghers have hampered irrigation and have disrupted hydrological connectivity, resulting in silting up of drainage canals, water congestion, loss of fish biodiversity, and reinforcement of pre-existing conflicts between u/s vs d/s resulting from topographical differences. Institutional conflicts mainly occur between ‘O&M committee’ under the WMA and informal ‘beel committee’ dominated by local elites and powerful groups, and between LGIs and O&M committee. Major conflicts stem from the control of sluice gates and the drainage canals, with WMGs yet to get control of sluice gates in several sub-catchments and LGIs and local powerful groups getting involved in leasing the sluice gate and canals. While engagement of WMGs in micro-credit and other economic activities is important for their sustainability, strong WMGs form the basis for effective and sustainable water management. Water management has not received as much attention in all areas as other economic activities did, which incapacitates many WMG members as they are unaware of their roles and responsibilities in terms of water management.Also, LGIs’ participation in WMOs’ activities has been less than expected, although there is evidence of more effective planning and design of water management in one sub-catchment via effective sharing of information and interaction between WMOs and LGIs. To mitigate conflicts, the WMGs, O&M committee and WMAs need to be more closely involved in decision-making and other important processes and interacting with other stakeholders, with LGIs supporting both in decision making and implementing process. A pre-requisite is well-functioning water management infrastructures, to be achieved via routine and periodic maintenance by O&M committee and major maintenance by BWDB. Continuous monitoring of WMOs should be conducted by BWDB with the help of local government. Priority-based conflict mitigating programs, proper positioning of stakeholders according to their priority, roles and responsibility, strengthening human capacity through proper training and strengthening livelihood groups are essential in mitigating local level water conflicts in Polder 29.
Warranty Expire Reminder
(Daffodil International University, 2020-07-26) Hasan, Md. Hasibul; Khan, Md. Foyzur Rahman
Warranty Expire Reminder is an android application which aims to help those people who easily lost their product's warranty card. This whole project is for easing our lifestyle. Just by signing up with an email and password the user will ready to go. This application provides a wide range of categories and subcategories of products. The user has to fill in some information about their products like name, model, purchase date, warranty card image, etc. and that information will be saved to the database automatically. Once the information is stored in the database the user can access that information’s from any place and from any android device as they need. User can see all the warranty cards he/she stores along with other information. After the expiration of any warranty card, it will delete automatically from the list and stored in another directory for future purposes.