http://220.247.167.101:8080/xmlui/handle/123456789/3 Tue, 21 Apr 2026 03:09:06 GMT 2026-04-21T03:09:06Z http://220.247.167.101:8080/xmlui/handle/123456789/109 Design and Implementation of Transformer Protection Scheme Based on Micro PLC Khan, Md. Humayun Kabir; Islam, Md. Ziaul An electrical power system consists of various components such as generators, switches, transmission cables, transformers, capacitor banks among other components. Within these, a transformer is a very valuable and needy device in a power transmission and distribution system and it needs to be protected from the fault that occurred in the power system. A protection scheme is presented in this paper, which can be used in transformer protection. The main intention of this proposed system is to design a micro- PLC-based system that checks the operating parameters of the transformer i.e., voltage, temperature, oil pressure and the quantity of current that is flowing through the transformer. The system is able to detect current above the normal operating level and isolate the power transformer from the distribution line. This isolation process is to ensure that the transformer is protected from any abundance current that can cause it to overheat consequently to be harmed. In addition, the designed system can isolate the transformer if the voltage, temperature, and pressure are higher than its normal operating value. Some of the tools used in this protection system include LDmicro- programming software to write the ladder logic diagram for the microcontroller. Proteus-simulation software has also been used to design the circuit diagram and the Printed Circuit Board (PCB) for its implementation on hardware. Wed, 01 Jan 2020 00:00:00 GMT http://220.247.167.101:8080/xmlui/handle/123456789/109 2020-01-01T00:00:00Z http://220.247.167.101:8080/xmlui/handle/123456789/108 Comparison of Fault Injection and Property Based Software Security Testing Technique Saha, Trina; Hossain, Md. Safaet Abstract- Security means the safety and it measures what we take to in order to stay protected and safe. Still some years ago, we concerned security only for our households and office environment but now-a-days another stem of security is “software security” which contains the current interest. To address this problem various techniques are taking place. Security is considered as a figure of merit of software. A secured software can easily meet its business requirement. The main aim of this paper is to discuss about two empirical software security techniques- one is Fault injection based security testing & the another type is Property based security testing. Not only this, we have also represented a basic comparison between these two techniques. For the project purpose we have also developed two software for testing these two types of techniques through which we can clearly represent that how these two techniques work to secure a software from being attacked & these two software are performing the black box testing which is very unique to verify a software is vulnerable or not. Wed, 01 Jan 2020 00:00:00 GMT http://220.247.167.101:8080/xmlui/handle/123456789/108 2020-01-01T00:00:00Z http://220.247.167.101:8080/xmlui/handle/123456789/107 Cancer Registry Importance in Bangladesh: A Review and A Mobile Application Based Solution Akter, Sharmin; Nayeem, Md. Imtiaz In recent times, cancer becomes the major health issue. Cancer registry is challenging but a part of modern health care that creates awareness globally. Time has come, when Bangladesh has to give supreme priority to make a smart system for cancer registration to collect and manage proper database of the number of cancer patient, survivor rate, death rate and chronic condition for future analysis. . This review has twofold goals, first is propose an effective solution through a mobile app for cancer registry and second is suggest a efficacious method for cancer registration by exploring the cancer registry methods are available in journal articles. The increasing number of smart mobile phone user is immensely helping us in this purpose. In this paper two types of methods are used for cancer registry, one is community clinic based registry approach another is hospital based registry approach. Community clinic is the unique innovation in Bangladesh health care system, and this community clinic based cancer registry is first time going to be implemented through this paper. Base on reviewing the features of apps and surveying on 100 of people including doctors, cancer patients and CHCP, we become able to propose an app of cancer registry. Apps were collected from August 2018 to March 2019 and data was analyzed in April 2019. Wed, 01 Jan 2020 00:00:00 GMT http://220.247.167.101:8080/xmlui/handle/123456789/107 2020-01-01T00:00:00Z http://220.247.167.101:8080/xmlui/handle/123456789/106 A Study of Comparing Total Population of Bangladesh with Age- Structured Linear Sharpe-Lotka Model and Malthusian Model. Rahman, Sumaiya Bintea; Islam, Md. Shahidul; Noman, Md.Talal Bin We consider an age-structured linear continuous population model named Sharpe-Lotka model, incorporating an factor contributes to limiting effect which may be occur due to lack of resources. This factor depends on the whole population rather than on any specific age group. In our paper, we investigate the total population size of Malthusian model and Sharpe-Lotka model for some specific age group & compare our investigated solutions with the total population of Bangladesh by using numerical method “Newton’s backward interpolation formula”. Wed, 01 Jan 2020 00:00:00 GMT http://220.247.167.101:8080/xmlui/handle/123456789/106 2020-01-01T00:00:00Z