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Innovative High-Gain Array Antenna Design for Compact 28 GHz Millimeter-Wave Communication in 5G Applications
(Daffodil International University, 2025-09-11) Patoyari, Md. Imran; Hasan, Md. Mahmudul; Hossan, Md. Belal
As there has been an explosive increase in wireless data traffic, mm-wave communication has become one of the most attractive techniques in the 5G mobilecommunications systems. In the landscape of 5G millimeter-wave communication, the demand for high-speed data transmission is paramount. In this study, we aim to design and optimize a novel array antenna at 28 GHz, which is an important frequency band for 5G mm-wave applications. In the case of higher frequencies, such array design provides a robust communication link given the enhanced bandwidth and gain. In the quest for the upcoming 5G millimeter-wave communications with stringent antenna gain and beamforming agility requirements, this paper shall present design and measurement of a reduced-size and scalable phased array antenna for the 28-GHz access network. Numerical results on the performance of our antenna are thoroughly studied in this paper, whereas, the significant contributions toward the 5G mm-wave communication are addressed as well. Maximum gain is 9.2 dB, efficiency is 99.5% and the useful bandwidth is 3.5 GHz in the range of interest and is performance is well suited and makes the proposed antenna suitable for next-generation 5G millimeter- wave deployments. Moreover, the challenges that mm-Wave applications meet are evaluated and some innovative mechanisms are also proposed to enhance throughput. We also delve into the antenna's impact on the environment and human body exposure, highlighting broader implications. Lastly, the superior performance specifications of our proposed antenna demonstrate that it still presents a significant enabler of future 5G millimeter wave communication networks, enabling further connectivity and perhaps even fast wireless communication.
Web Based Online Old Book System
(Daffodil International University, 2024-07-24) Hasan, Md. Mahmudul; Bosrin, Mst. Rabeya
We are building an innovative e-commerce platform dedicated to enhancing the book - buying experience in Bangladesh. This online solution caters to users' diverse learning needs by offering a comprehensive range of old across various fields. With a commitment to contributing to education and technology, We named this website Astha Prokashon provides an affordable avenue for users to purchase books while also empowering them to sell their used books on the platform. The unique focus on preowned books involves a meticulous quality check process, ensuring each book is restored to its optimal condition before being delivered to the consumer's doorstep. Astha Prokashon stands out as an e-commerce site specializing in old books, providing a constructive and accessible platform that bridges the gap between book enthusiasts and valuable literary resources. And whenever we just searching the books and looking for something which we need most, it is very hard to find such type of books. Because the place is always too crowded. Sometimes availability is the big issue in the book market mainly old books. But by using our website "Astha Prokashon" people can find their desire books from a vast sea of books without going to the market. After registering in our website users can give positive and negative reviews and comments. They can also sell their old books in our website. This website brings you one step closer to a wonderful future.
Implementing an efficient image processing technique with deep neural networks for the classification of medicinal herbs
(Daffodil International University, 2024-07-15) Hasan, Md. Mahmudul; Ur Rahman, Nasif
Plants, in all their diversity, represent a valuable contribution from the environment. When illness strikes, whether physical or mental, medicine becomes our primary recourse. Many pharmaceuticals are derived from natural plants, which serve as vital sources of medicinal compounds. In Bangladesh, these medicinal plants are also known by the names Homeopathy, Unani, and Ayurveda. Experts suggest that the COVID-19 pandemic can be effectively addressed with the aid of medicinal plants. Strengthening our immune system is paramount, as it directly influences overall health. A robust immune system can combat bacteria, viruses, and other pathogens. Conversely, inactive individuals are more susceptible to viral infections and diseases. Certain medicinal plants have been shown to enhance immunity. Therefore, accurately classifying these plants is crucial. We proposed using four well-known algorithms—DenseNet201, VGG19, and ResNet152—to classify medicinal plants based on leaf images. Our approach achieved accuracies of 96.08% with DenseNet201, 97% with VGG19, 98% with ResNet152, and an impressive 99.12% with a hybrid model combining VGG19 and ResNet50. These results highlight the potential of advanced deep learning techniques in enhancing the identification and utilization of medicinal plants. Our research will help people understand their immune systems better and the medicinal plants that can boost immunity, thereby enabling them to combat diseases and viruses more effectively in the future. As we look ahead, it is important to acknowledge that dangerous infectious viruses may continue to emerge. Our study not only contributes to the field of medicinal plant classification but also underscores the importance of integrating traditional medicinal knowledge with modern technological advancements to improve public health outcomes.
A Systematic Review on Irritable Bowel Syndrome (IBS) & It’s Management
(Daffodil International University, 2024-11-05) Hasan, Md. Mahmudul
Irritable bowel syndrome (IBS) is a disorder that affects the digestive system that affects many people. Gastric pains, bloating, diarrhea, and constipation are common symptoms of this condition. These tend to come and go throughout time, and they might endure for a few days, a few weeks, or even a few months. It's generally an issue that lasts a lifetime. My aim of this study is, to find out the main reason and possible treatment of IBS. The study is conducted with literature review. I reviewed around 51 articles for this study. In this review, I was found Approximately 35% of cases of IBS were caused by viral infections, mostly norovirus and rotavirus; bacterial infections were around 65% with Campylobacter spp and Salmonella spp. Education, reassurance, stress management, and relaxation methods should all be included in the initial therapy of irritable bowel syndrome. Depending on the nature and degree of symptoms, further treatments may be necessary. Additional fluids, guar gum, exercise, and fiber may be beneficial for those with moderate constipation-predominant IBS who have minor symptoms.
Vegetable Diseases Detection Using Machine Learning
(Daffodil International University, 2022-01-04) Bhuiya, Sumon; Hasan, Md. Mahmudul; Nahin, Faius Mojumdar
Our country cultivates to a great extent of leafy vegetable. Meanwhile a lot of amount goes to wastage responsible being the lack of care. This happens due to incapability in peaking up the right illness of plants, making farmers huge loss. As a result, farmers are turning their back from planting vegetables. To solve this calamity, from our by heart efforts we are presenting vegetable diseases detection using machine learning algorithm. This machine can ease difficulties of detecting incurable vegetables with its features. Modern medical terms cannot upgrade its facilities in no alternate means of using machine learning algorithm. Through this algorithmic way we can easily detect the diseases. Medical procedure is a long process to know health report. In the meantime, losing a lot of time does make customer dissatisfied. To save time and for customer's satisfaction this machine learning algorithm demand is at its rise. Our main focus in this research was to detect diseases of vegetations easily. Our country is in lot of demand of vegetables. For any reason there comes any failure to detect diseases, all harvest will go rotten. Late detection of this diseases will not lead to any solution. The initiative of this research was taken to detect diseases fast. Our little trial is for those farmers, to not let their harvest go crumble and so to detect diseases fast.
Android Based Mobile Application Smart Traveller
(Daffodil International University, 2022-01-06) Ruhid, Shah Md. Redoan; Hasan, Md. Mahmudul; Ahamed, Md. Sabbir
When a traveler wants to visit a place, the traveler looks for information about the place like- how to go, what are the popular spots to visit there, what are the best rated hotels to stay, what could be the estimated budget to travel there, what problems did the other travelers faced after going there etc. but we have seen that, travelers often have a complain that they cannot obtain all of these necessary information. This smart travel guide application seeks to solve these kind of problems faced by the traveler before and after going on a place. By using latest information about a place and any other guidance-related details requested by the traveler. The traveler can explore tourist destinations in a better way. The application includes features like- places of Bangladesh, Booking services, Budget tour, Nearby restaurants, ATM’s and more. The traveler can book a hotel to stay and also rent a vehicle (Car, bike, bicycle) at the tour place. With this application the traveler can get information about hotels, vehicle rent providers, tour events, emergency services and information about problems faced by others travelers, so that travelers can take precautions before going anywhere. We thought that, a traveler could make a perfect trip and a better tour plan, if we use these features in the application.
CARE- a Web Application Project Providing on Medical Services
(Daffodil International University, 2021-09-11) Hasan, Md. Mahmudul
Medical Service Management System (CARE) is our major emphasis. It will enhance the medical experience for both nurses and other healthcare providers. The whole Internet will be used to run the system. Scripts are developed in PHP, Java Script, query, as well as HTML as well as HTML and CSS. From any location with internet access, users will be able to log in to the system. connection. These individuals will thereafter be able to do different duties that have been assigned to them. Users can be divided into three groups: i.e. (Management, Patient and Doctor). The Every user who may profit from our service is our major priority. It can only be converted for doctors into a paid system. Where doctors are able to pay for more cloud storage. The number of patients also varies from physician to doctor, and different kinds of patients might be present. There are different patients a doctor may have. We may expect that physicians are going to need various cloud storage. For each physician we may assign a fixed cloud storage. You can request additional storage on request and they are charged for their request. We can produce different packages and attribute different costs. The patients are provided with some room to retain their data. Since the patient just need storage for himself he can use it as a free user. This makes the system more practical and convenient for everybody.
A Decision Making Approach for Selecting an Event Management Company
(Daffodil International University, 2021-01-28) Afrin, Faria; Ahmed, Nisar; Hasan, Md. Mahmudul
Understanding the goals with planning, designing, conceptualization and co-ordination an event management company plays a vital role and ends this process with proper execution. But nowadays many clients are facing more and more demanding and competitive market where taking decisions are completely tough. For this reason it is much more difficult for a client to find the best company when we have so many alternatives. For that purpose, available decision making methods are studied which may aid the decision makers to set the priorities and help them to make the best decision. The decision-making process involves a choice from a number of alternatives. This process is usually a complex process, which involves resources and time consumption. In this paper, we have considered five important attributes among three different companies as alternatives which is regarded as a multi criteria decision making problem for selecting an Event Management Company. In this study, a decision support framework is proposed for the selection of Event Management Company and ranking them using the Analytic Hierarchy Process (AHP) method and Generic Feature Extraction Method. This paper provides all the detailed information about the decision making process to aid the decision makers. Here all the relative importance of alternatives has been calculated by using AHP. The ultimate decision is prepared based on the arithmetical scores seized by the alternatives and to demonstrate all the things is presented on the proposed methodology
Effects of Fabric Composition & Weight on Lab Tests of Garments for Different Wet Washes
(Daffodil International University, 2019-05-02) Hasan, Md. Rakibul; Hasan, Md. Mahmudul; Ghosh, Sudeb
This observation was about the lab test and wash effects of fabric with different fabric composition and fabric weight. This observation make the differences of different fabric wash by which understood the importance of fabric weight and composition for washes. For this reason choose this topic. This observation helps to garments and denim wash for different fabric. Done all experiments individually and personally. This thesis is done to find out the Laboratory Tests of denim garments after denim washing process. This study is done without high facilities. But the output of this study was fine. We have found some laboratory tests data of different fabric and compare among theirs tests
Smart Dhaka City – an Online Platform to Communicate with City Corporation
(Daffodil International University, 2019-12-06) Rahman, Md. Atiqur; Hasan, Md. Mahmudul
Many times people of a city corporation need to tell about their area’s problems to citycorporation for solving their problems they face in their daily life. But it is quite difficult to go to city corporation every time they face problem. And it also be time-consuming for those people who has their own occupations and they cannot get enough time to tell their problem to city-corporation by going there. As a result, many times they do not inform to City Corporation about their problems. And they think it’s time-consuming for them. So they do not care about their problems, and they lead their daily life with their problems. Besides city-corporation authority cannot know about that area problems. And for this city corporation cannot take action on that problems. For solving this problem, we developed a web application named Smart Dhaka City. And this web application project msolves this problem by create communication between ‘city corporation’ and ‘people’. So they can communicate with each other very easily from home or office. And do not need to waste their time by going to city-corporation. They can easily tell their problems to city-corporation authority and get response from them.

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