Department of Software Engineering
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Item 1000kva Substation Design and Load Calculation(Daffodil International University, 2024-07-07) Barman, Papon Chandra; Mondal, Md. Roki; Hossain, Md. IsmailOur journey through the B.Sc. Engineering program at Daffodil International University. Our project title is "Load Calculation & Substation Design," which immersed us deeply into the intricacies of electrical substations and related equipment. Through this project, we transitioned from theoretical understanding to hands-on practical knowledge, significantly enriching our understanding of the subject matter. Delving into various facets of substation engineering, we meticulously explored substation safeguarding, various protective relay kinds, bus-bar systems, installation techniques, and layout design and essential components like ring main units, AVR, and switchgear. Our comprehensive study extended to power transformers, distribution transformers, and instrument transformers, where we not only grasped theoretical concepts but also engaged in practical testing methodologies. The project enabled us to differentiate between transformers and instrument transformers, understand the critical role of current transformers (CT) in high-voltage applications, and appreciate the significance of load calculation in substation design. Additionally, we gained proficiency in substation switchgear, including high-tension (HT), low-tension (LT) and power factor improvement (PFI) as well as the utilization of circuit breakers for effective power distribution and protection. Our journey through this project has been transformative, equipping us with a robust foundation in substation engineering and empowering us with practical skills essential for real-world applications in the field.Item 10k Steps a Day – a Step Counter App for Android(Daffodil International University, 2022-01-04) Khan, Md. Sadik HasanAs the name suggests, “10k Steps a Day – A Step Counter App for Android” is a health focus android app for counting steps. The significance of the project lies in its ability to prompt people to make some time from their busy schedule daily so that they can lead a healthy life without sickness. But the core focus of this app is to help all the people suffering from “Diabetes”, a chronic and long lasting health condition affecting your body’s energy consumption through food. Which needless to say, in Bangladesh, has an abundance of. Currently there almost 10 million people has diabetes in Bangladesh. That is to say, 1 in every 16 people in Bangladesh has this long lasting health condition. And there is no cure for this condition as of now other than controlling it through proper diet and exercise. To that end, there is no substitute for taking a routine walk every day. But how much does one actually need to walk a day? Research has shown that, every day only 10,000 steps is required for an adult to sustain a healthy life. This is why I have developed a step counter android app to record the steps taken every day. This app will benefit everyone regardless of them being suffering from diabetes or not. I have added many useful features to this app to motivate them to go for a walk every day. I used android studio to develop this project. And for testing and debugging I have used Pixel 5 emulator and Oneplus 3t smartphone. The app is properly tested in multiple ways to ensure its credibility.Item 2-STEP DOOR LOCK SECURITY SYSTEM(Daffodil International University, 2018-05) HASAN HEMON, MD. MAMDUD; HAQUE ONY, MD. SAFIU; RABBANY, MD. GOLAMTechnology made life easier than before but set some alarming issues to be careful about. Security is one such major concern of today’s life. For keeping information secured access control, password protection, and biometric measures are implemented with high care. This project presents a 2-way security-controlled door opening system which can be widely used in different organizations and even in apartments or houses. In this project embedded systems and biometrics have been used to protect unauthorized access. If knock pattern and finger print matches then the door will be opened. Otherwise it will set an alarm for neighborhood and system will send an email to the authorized person in his/her mobile. An alarm and email can make the neighborhood and the authorized person alert respectively and thus they can take necessary actionsItem 24 Hours Emergency Blood Service(Daffodil International University, 2019-12) Kadir, Md. AbdulBlood donation process first started in Bangladesh in 1950 under Dhaka Medical College Hospital. In that time professional blood donor donate blood. In that time the required blood are managed by this hospital stock. But after 2010 the required units of bloods were increasing day by day. Hospital could not coverage large amount of blood. The 50% blood Ire collected form specific patients for single time donation.25% blood are collected from some volunteer blood donation organization like SANDHANI. So the other 20%-25% blood was come from paid donor. Many emergency patients could not get blood in hospital and paid donors are not available all time. This is a major problem in our country find the real blood donor at right time. Many organization getting start blood sell business. For removing blood business and paid donor I make this project 24 Emergency blood service. By using our service you can easily find donor for your area and blood group basis. You can easily contact with donor via donor contact information. Our 24 hours online service helps you find emergency blood through nearest blood bank and hospital. If you become a donor you can safely donate bloods and also join many other blood donation campaigns.Item 38GHz High Bandwidth and Low Return Loss Microstrip Patch Antenna Design(Daffodil International University, 2024-07-13) Shazzad, Md. Shahriar Hassan; Uddin, Md. MakhrajThis thesis focuses on improving the effectiveness and appearance of a small antenna used in modern wireless communication networks operating at 38GHz. The antenna is designed to address the need for high-speed data transmission in Bluetooth, Wi-Fi, and other wireless technologies. By addressing issues related to size, bandwidth, and signal strength, the proposed antenna aims to optimize performance for small and lightweight devices. The research project begins with a thorough analysis of existing studies, examining different materials, feeding methods, and antenna designs. Advanced tools are used to simulate and analyze the antenna's design and important characteristics like radiation pattern, bandwidth, and signal loss. The study investigates how various design elements, such as antenna size, material properties, and feeding techniques, affect overall performance. Additionally, practical considerations like cost-effective materials and production methods are explored to achieve an affordable and feasible design. The suggested antenna's performance is then confirmed through extensive testing, comparing the results with simulated data to ensure accuracy. The findings of this study provide valuable information on the best design parameters for improved performance in the 38GHz frequency range, advancing the technology of small antennas. The suggested antenna has potential applications in Internet of Things (IoT) devices, wireless communication systems, and other emerging technologies that require reliable high-frequency connections. This thesis serves as a useful resource for researchers, engineers, and professionals involved in antenna design and wireless communication.Item 3D Interior Design(Daffodil International University, 22-11) Chowdhury, Zaowad HossainA place for research and development in 3D animation. The country of Bangladesh's first comprehensive institute for learning 3D animation and visual effects It is an association of experts from the technological and creative fields who have gathered to offer good services. 3D designers produce 3D environments and characters based on concept drawings. 3d is a very sophisticated field. As a result, 3D artists are highly sought after in all sectors of the economy. Depending on the specialty, employment in this field increased by 8–14% by 2018 as reported by the Bureau of Labor Statistics (BLS). 3D visualization is a technique of a 3D digital representation of any object or surface can be created using the computer graphics technology. People who don't know how to operate appropriately and effectively find it difficult to deal with 3D graphics. People believe that this industry is too tough and difficult for them to perform in; I am not able to work because of this. They avoid the 3D industry because of this. Many works hard to create a beautiful 3D representation, but they fail to do so because they are unaware of the correct procedures for building a realistic scene. Because of this, numerous businesses, institutions, enterprises, and agencies have been searching for a qualified and experienced 3D artist, but ultimately failed to obtain it. Now since technology is constantly evolving, no one needs to leave their homes to make purchases. With the aid of technology, you may execute any purchase from your home. The freedom provided by 3D visualization allows you to design the interior and exterior of your home from a computer. You can furnish your home in 3D with just about any furniture, a character, as well as other objects. Today, 3D animation is commonplace. In the film industry, they're a great venue to create cartoons and animated movies. If they have rapid and simple decorating skills, those who are interested in 3D visualization can build a career in the field.Item 3D Reconstruction of Colonic Polyps: A Methodology for Improved Visualization and Analysis(Daffodil International University, 2025-05-14) Ahmed, Ishtiaque; Hamim, Md. Saimim Islam KhanColorectal cancer is one of the most common and life-threatening diseases worldwide, and colonoscopy remains the most effective method for early detection and removal of precancerous polyps from the human colon. However, a major limitation of conventional colonoscopy is the restricted field of view of the endoscope, which often prevents the complete visualization of a polyp’s surface. Due to complex polyp shapes or difficult camera angles, certain regions of the polyp may remain unobserved during the procedure, increasing the risk of misdiagnosis or incomplete removal. In this research, a 3D reconstruction-based approach is proposed to improve the visualization and analysis of colonic polyps using 2D endoscopic images. The overall framework begins with organizing the dataset based on lesion and video annotations, followed by automatic frame selection using mask-based conditions, image contrast, feature points, and depth quality scores to select the most informative frames for reconstruction. To improve image quality, reflection removal is applied using the EndoSRR framework. Depth maps are then estimated using ZoeDepth, a state-of-the-art monocular depth estimation model. Using these depth maps, dense point clouds are generated, and Region of Interest (ROI) extraction is performed for accurate reconstruction of the polyp surface. Clean 3D meshes are constructed using the Ball Pivoting Algorithm (BPA), along with refinement and hole-filling techniques. Additionally, the reconstructed 3D models are analyzed through various geometric and structural features, including shape descriptors and curvature. Finally, silhouette projection and alignment validation are performed to compare the 3D reconstructed model with the original 2D mask, ensuring accuracy and reliability of the reconstruction. This 3D reconstruction pipeline provides enhanced visualization of colonic polyps, enabling better inspection of previously unobserved regions and supporting further quantitative analysis for future computer-aided diagnosis systems.Item 3D Volume Reconstruction from Sparse 2D CT Slices Using Lightweight CNN & Attention(Daffodil International University, 2025-11-27) Kana, Shrabanti DashSparse slice acquisition is used to a great extent in the low dose CT imaging. This assistsin reduction of radiation. Nonetheless, it is likely to damage the quality of 3D reconstruction significantly. The resultant artifacts and noise are manifested. There is some evidence of a lightweight 2D CNN auto encoder, which consists of channel attention. The purpose of this set up is to enhance the quality of the sparse CT slices. It reinstates important structural information. Noise gets reduced too. All this is prior to the slices entering the entire volumetric process. Linear interpolation is used after the reconstruction process. This forms a full volume in 3D. The continuity across the slices is enhanced in the process. Experimental reviews point to high performance in this. The average SSIM of the model is 0.9660. Average PSNR comes in at 25.99 dB. These figures point to good structural fidelity in the general. Distortion is also rather low. Such outcomes are indicative of the usefulness of the lightweight approach. It is effective in efficient sparse data 3D CT reconstruction.Item 5g Security Challenges and Recommendations(©Daffodil International University, 2022-01-13) Shorifuzzaman, Md.5G will make it possible for everyone to have access to high-speed internet everywhere, and it will also make it possible for a huge number of devices (e.g. IoT) to be connected in an ultra-reliable and cheap way. Cloud computing, Software Defined Networking (SDN) and Network Function Virtualization (NFV) are the primary technological enablers maturing for use in 5G. However, these technologies face significant security challenges in addition to growing concerns about user privacy. In this work, I discuss the security and privacy issues surrounding 5G technologies. I also discuss security solutions and future approaches for secure 5G systems.Item 5g Security Challenges and Recommendations(©Daffodil International University, 2022-01-13) Shorifuzzaman, Md.5G will make it possible for everyone to have access to high-speed internet everywhere, and it will also make it possible for a huge number of devices (e.g. IoT) to be connected in an ultra-reliable and cheap way. Cloud computing, Software Defined Networking (SDN) and Network Function Virtualization (NFV) are the primary technological enablers maturing for use in 5G. However, these technologies face significant security challenges in addition to growing concerns about user privacy. In this work, I discuss the security and privacy issues surrounding 5G technologies. I also discuss security solutions and future approaches for secure 5G systems.Item 802.1x Authentication and Certification in a Network System(Daffodil International University, 2021-12) Khan, Md. Salauddin; Ali, Md. RifatWe looked into some of the mechanisms for securing corporate wired Ethernet, which are usually ignored. After a detailed analysis of all options, we decided on an IEEE 802.1X port-based authenticator technique. The authentication server is a radius server, and the authenticator is a Cisco switch. The major goal of implementing IEEE 802.1X is to limit guest access to the LAN/wired network and ensure that only genuine users are authenticated. The network is only accessible to authenticated users. The suggested approach uses Microsoft Active Directory Services in Microsoft server to monitor active users using centralized user access management. Individual configurations of all entities engaged in the mechanism are addressed in detail in order to properly offer a pilot version of the protocol that could be used to debug all faults before being deployed on a live network. We will be able to keep track of all users/employee action on the organization’s network by configuring the accounting tab on the Server Manager.Item A Bangladeshi Road Sign Detection & Recognition System Based on Template matching & Convolutional Neural Network(Daffodil International University, 2021) Karim, Md. ZiaulRoad Signs are very important but a neglected topic in the discipline of driving vehicles in Bangladesh. As a highly populous country chaos on the road has taken a disastrous shape over the past decade as the number of vehicles on the road had went up and road safety became a crying need as the lives lost in road accidents are constantly on the rise. In case of Road Signs in Bangladesh the descriptive text for it is given more emphasis than the sign itself. Whereas, in the developed countries the signs are given more importance, because Signs are supposed to be universally accepted in case of communication. Hence, the Road Signs in Bangladesh are put quite arbitrarily, especially in the metropolitan areas the signs are credited by Metropolitan Police, or sponsored by companies, they look more like posters or banners than a legitimate Road Sign and it becomes very difficult to locate them. As we are witnessing the development of Autonomous Driving Systems all over the world by companies like Tesla, it is becoming more and more popular in demand. The detection & recognition of Road Signs play a crucial role in it. In Bangladesh Road Signs are ignored most of the time & text based road signs are given the priority. While human brain is capable enough to detect text based Road Signs, a smart system can struggle. Nonetheless, two types of measures could be taken into account in this case, one is through text recognition based and the other is detecting the sign in the poster-like signs and then run it through a neural network based classification to identify it. The later solution was taken into account for this paper, as all the Road Signs (both poster-like & basics) contain the basic signs for directions, they may or may not contain descriptive text along with them, but the road signs are always present in larger or smaller scales. The solution was built around Deep Learning and Image Processing techniques for object detection, segmentation and classification. Supervised Learning and Transfer Learning were used in terms of technical development. Text based recognition systems are not ideal for metropolitan areas because there are so many posters and banners attached to the poles and around the Road Signs.Item A Basic Study on Web Design Development and Database(Daffodil International University, 2020-10-12) Alam, Md. HadiulThis internship is on A Basic Study on Web Design, Development and Database. Website Design, Development and Database were the major working sector of this internship. There is some web language like- HTML, CSS, JavaScript, query, bootstrap we used to develop our web-based application or software. These languages are only use for the fronted and back-end design of the software. Some other programming language such as PHP, JAVA used to build the dynamic functions of the software or Applications. By using this programming language, we can develop web-based software or application. While I was working as an intern on this company I also work to find bugs, errors and I learn how to overcome this type of error using a constructive guideline. Customers layouts maintenance and every sector have individual setting to modify and work this web-based application. This web-based application work on Windows as usual in Linux server. Commonly most web-based application are accessed by World Wide Web (WWW) via domain and host. So, now a days it’s getting very easy to access throw internet for any information if we build a web-based application. This is making our life more fluent. That’s why I choose “A Basic Study on Web Design, Development and Database”. This report will demonstrate my whole learning journey during the internship period.Item A Bengali Text Summarization Using Encoder-decoder Based on Social Media Dataset(Daffodil International University, 2021-01-27) Rahat, Minhajul Abedin; Mahdi, Md. Tahmid Alie - Al –; Fouzia, Fatama AkterText summarization defines artifices of reducing a long document to create a tale of the main aims of the original text. Due to the huge number of long posts nowadays, the value of summarization is produced. Reading the main document and getting a desirable summary, time and stress are worth it. Using Machine learning & natural language processing built an automated text summarization system can solve this problem. So, our proposed system will distribute an abstractive summary of a long text automatically in a period of some time. We have done the full analysis with the Bengali text. In our planned model we used a chain-to-chain models of RNN with LSTM in the encrypting layer. The structure of our model works applying an RNN decoder and encoder where the encoder inputs text documents and creative output as a short summary at the decoder. This system improves two things namely, summarization & establishing great performance with ignoble train loss. To train our model we use our dataset that was created from various online media, articles, Facebook, and some people's personal posts. The difficulties we face most here are Bengali text processing, limited text length, enough resources for collecting text.Item A Bengali Word Identification and Verification Using Machine Learning Approach(Daffodil International University, 2022-01-04) Hasan, Md. Shakibul; Rana, Masud; Rahman, Nasim BinThe research project is mainly based on image classification. We also showed a path to Optical Character Recognition. If we are to define Optical Character Recognition is basically a technology which can change over a computerized image of content to editable content i.e it can change digital image to editable text. An OCR by using image processing and classification for Bangla dialect is proposed here. The primary step of this project is that to recognize and detect 'text', the usage of image classification and Convolutional Neural Network(CNN) is implemented. Characters are separated from the Corpus and then the most decisive and challenging of the project step is implemented which is the verification of the word or corpus. The Bengali word or corpus is then extracted from the digital image and then it is converted to digital font and then the digital font is compared with our accumulated data set to verify whether the word is absolute or not. To enrich the diversity of Bengali language in the field of technology the project plays a very significant role from its own view.Item A bibliometric analysis of articles citing the machine learning algorithm(Daffodil International University, 2018-05) Islam, Md ImranulIn the face of comparatively recent emergence of the machine learning algorithm, the originating article has already cited by a large number of studies, and hence it appears to have become a popular theoretical and practical choice with in the field of Machine Learning Algorithm. However as yet there have been no attempts to analyses the reason for citing the originating article . Choosing a suitable machine learning algorithm for a system is difficult because of the number of algorithms described in the literature..Such as systemic review of citations may inform researchers and guide appropriate future use of the theory .This paper therefore presents the results of a bibliometric analysis and systematic review of fifty citation of the originating article in an attempt to better understand the reason for citation, and use and adaptation of the theory . This paper presents a structured review of the literature that explore the use of machine learning algorithms in bibliometric analysis and identify new research scope. The object of this study are to define trends in the use or research of machine learning algorithms; Define clear questions in the use or research of machine learning algorithms; and helps new researchers to position new research work in this state appropriately. This paper also classifier and speculate these citation and analyses the limitation of Machine Learning Algorithm use in existing research, Speculate the use of big data technologies, Define types of machine learning algorithms. Overall, the topic summarizes the current state of knowledge of the machine learning algorithm. It creates an understanding of the machine learning algorithm for the reader by discussing the findings presented in recent research papers.Item A Blockchain-Based Government Fund Management System Submitted(Daffodil International University, 23-01-29) ShuaibBlockchain is a technology that can provide us with features like immutability, transparency, traceability, decentralization, and many more. Blockchain is being used in identity management, cryptocurrency, supply chain management, and many more. In recent years using of blockchain in finance, supply chain, and data-storing sectors has increased significantly. As it provides immutability and openness, it can be used in government fund supply. When government allocates funds for specific purposes and people, in most cases there is no knowledge of the recipient’s identity. Some corrupt people take advantage of the handwritten system and put the wrong people’s names for their benefit. To solve these issues, a Blockchain-based platform(DAPP) has been proposed in this research. A decentralized identity proof and fund transfer system has been proposed here. People who need the fund can apply through this DAPP with the proper documentation. The authority can verify these documents and provide approval decisions on the DAPP. For example, the election commission office can confirm if the provided NID is original or not, the land office can confirm if that person has any land or not. After collecting approval, a candidate list will be sent to the admin and the admin will allocate a hash for the candidate. After providing this hash to integrated mobile banking, one can collect cash. A prototype of this DAPP is discussed at the end of this thesis. I have used the Ethereum blockchain platform for this prototype. In the future, this can be developed using any kind of public or private blockchain platform.Item A Briefly Concept on the Features of Switchgears, PFI and Transformer(Daffodil International University, 2019-08) Islam, Md. Rafiqul; Rana, Md. Masud; Islam, Md. MobinulThe internship program is very helpful to bridge the gap between the theoretical knowledge and real life experience as part of Bachelor of Science in Electrical & Electronics Engineering program. Their internship report has been designed to have a practical experience through the theoretical understanding. Classroom discussion alone cannot make a student perfect in handling the real engineering situation; therefor it is an opportunity for the students to know about the real life situation through their program. The report is broadly categorized in six different parts. At first time is introduction, objectives of the study, scope of the report, methodology of the study, and limitation. Part two describes the overview of Tokai Power Product Ltd (TPPL), major works involved, territory, supply chain, mission, vision and strategy, operation, departments of Tokai Power Product Ltd, some of power manufacturing company in Bangladesh. Part three focuses on Literature Review. Part four focuses on transformer manufacturing. Part five focuses on switchgear. It includes circuit breaker, isolator and switch, importance of power factor, transformer fault and protection. Part six narrates a concluding summery, future work and references. In their internship report, transformer manufacturing process of Tokai Power Product Ltd (TPPL) as well as switchgear & protective devices were studied. I learn here how Can transformer work? Also know how power factor is calculatedItem A c2c approach to design & development of an online Private teaching(Daffodil International University, 2018-05-07) Khatun, Most. MarofaIn this project, a web application for providing good teaching for students has been developed. This application can enhance the capabilities of the all students of our country. It is developed in order to help students to find out their right teacher. On the other hand, one of the biggest advantages of online private teaching is that lessons can easily be customized to suit each student. As private tuition is usually one-to-one function, tutors and students are able to work much more closely and develop stronger relationships between them. Thus, students will respond better to a teacher that is suited to them, in terms of both temperament and learning style. We have used PHP, Codeigniter Framework, MySQL and HTML to complete this project. This application has three parts - admin panel, parent panel, and teacher panel, Admin panel is for maintaining all information and system settings. Teacher panel and parent panel deal with all sorts of works regarding tuition, e.g. completing registration, creating a post, editing post. This web application is fully responsive in that anyone can browse this application from his/her multimedia phone, tab, laptop and desktop. This project is functionally very easy to operate. Thus, development of a C2C ecommerce application has been accomplished.Item A Case Study on Customer Satisfaction Towards Online Banking in Bangladesh(Daffodil International University, 22-09-21) Hayat, MD AbulIn the technological era of today. Every task in daily life is considerably simpler than it was in the before. Technology has made everything computerized. Banking is also the one from all of them. Technology has resulted in many improvements in the banking industry. Every task in the banking sector is digitized, from account opening to money transfers through e-banking, eliminating the need for customers to visit banks and wait in long lines. This makes work for both customers and banking institutions easy, efficient, and quick. E-banking also encourages competition among banks to offer their customers better services and draw in a growing number of customers. This study aimed to explore the moderating result of these customers' faith in online banking services on customer satisfaction. Additionally, the goal of this study is to measure overall consumer satisfaction. Every organization's most difficult duty is ensuring customer pleasure. This paper attempted to determine the level of customer satisfaction. 500 randomly chosen and conveniently placed individuals are surveyed to achieve this. To analyze the data it was used Matplotlib for plotting and visualization and use VS Code as an Editor. That result of the research is shows that Security, Online Bill Pay, Fund Transfer, Any time anywhere use, Web Design, Convenience and speed are directly related to the Customer Satisfaction towards Online Banking in Bangladesh.