Augmented reality marker-based technology for augmenting newspaper advertisement

In this research, we describe an augmented reality android-based idea in which we utilize augmented reality marker-based technology for augmenting newspaper advertisement with electronic information that does not modify the format of the newspaper document and remains exactly the same, substantially improves the utility of paper by reducing the portion of the printed Ad on the newspaper. An implementation on a camera phone is discussed that lets users retrieve data and access links from newspaper advertisements to electronic data. We carefully examined over twenty people of different ages and occupations who participated in the newspaper-based AR and we got a significant overall response. Further analysis implies that this may assist students in understanding the complex 3D objects, which they can manipulate, learn tasks and improve skills

Mapping Ecotourism Potential in Bangladesh: The Integration of an Analytical Hierarchy Algorithm and Geospatial Data

The significance of ecotourism has been increasing due to its potential for biodiversity preservation, economic advancement, and the promotion of sustainability awareness. In this research, geospatial analysis and the Analytical Hierarchy Process (AHP) was employed to identify feasible ecotourism sites in Bangladesh. The study applied Geographical Information System–Remote Sensing (GIS-RS) parameters and weighted overlay techniques for selected ecotourism characteristics, such as natural attractiveness, topographic features, accessibility, proximity to facilities, and community characteristics. The study found that a significant proportion (around 44%) of Bangladesh’s land exhibits high potential for ecotourism. Cox’s Bazar, Chittagong, and Rangamati are particularly favorable ecotourism locations. However, some difficulties emerge in regions that are not easily reachable, such as mangrove forests, and in densely inhabited localities like Dhaka. The research also identified the ecological costs linked with ecotourism, such as the exhaustion of resources, the fragmentation of habitats, contamination, and the disruption of wildlife. The primary recommendations to address the adverse effects include educating the local populace, enforcing regulatory measures, implementing efficient waste management systems, enforcing a stringent code of conduct, providing economic incentives to the local communities, and addressing the issue of food security. The cartographically delineated potential zones have the potential to function as a navigational instrument for global travelers and facilitate the decision-making process of policymakers in the realm of sustainable land resource management in Bangladesh. This study enhances the understanding of the potential of ecotourism and offers valuable insights for advancing responsible and sustainable tourism practices within the nation

ATM Shield: Analysis of Multitier Security Issues of ATM in the Context of Bangladesh

Over the last decade, consumers have been largely dependent on and trust the Automatic Teller Machine (ATM) to conveniently meet their banking needs. However, despite the numerous advantages of ATM system, ATM fraud has recently become more widespread. In this paper, we provide an overview of the possible fraudulent activities that may be perpetrated against ATMs and investigates recommended approaches to prevent these types of frauds. In particular, we develop a prototype model for the utilization of three tier security equipped ATM to provide security solutions against must of the well-known breaches. In this research article, the tools and techniques of ATM fraud are contemplated. A secure three layer electronic transaction mechanism of ATM is developed to prevent ATM frauds. In this three layer authentication systems the users can improve ATM security against frauds and crimes

Performance Evaluation of Cognitive Radio Network Based on 2-D Markov Chain, Journal of Telecommunications and Information Technology, 2015, nr 3

The objective of cognitive radio network is to enhance the wireless network spectrum utilization. In such a network, two types of users are enlisted, namely primary user (PU) and secondary user (SU). The PU can access any channel in case of its availability, but SU users have lower priority and can access a channel only when it is unused by PUs. The performance of such a network solely depends on two traffic parameters: probability of false alarm and probability of misdetection. In this paper the performance of such a network is analyzed based on two dimensional Markov chain including those parameters. The main contribution of this paper is to evaluate blocking probability and PU and SU throughput using the state transition chain instead of existing statistical analysis

Smart detection and prevention procedure for DoS attack in MANET

A self-organized wireless communication short-lived network containing collection of mobile nodes is mobile ad hoc network (MANET). The mobile nodes communicate with each other by wireless radio links without the use of any pre-established fixed communication network infrastructure or centralized administration, such as base stations or access points, and with no human intervention. In addition, this network has potential applications in conference, disaster relief, and battlefield scenario, and have received important attention in current years. There is some security concern that increases fear of attacks on the mobile ad-hoc network. The mobility of the NODE in a MANET poses many security problems and vulnerable to different types of security attacks than conventional wired and wireless networks. The causes of these issues are due to their open medium, dynamic network topology, absence of central administration, distributed cooperation, constrained capability, and lack of clear line of defense. Without proper security, mobile hosts are easily captured, compromised, and attacked by malicious nodes. Malicious nodes behavior may deliberately disrupt the network so that the whole network will be suffering from packet losses. One of the major concerns in mobile ad-hoc networks is a traffic DoS attack in which the traffic is choked by the malicious node which denied network services for the user. Mobile ad-hoc networks must have a safe path for transmission and correspondence which is a serious testing and indispensable issue. So as to provide secure communication and transmission, the scientist worked explicitly on the security issues in versatile impromptu organizations and many secure directing conventions and security measures within the networks were proposed. The goal of the work is to study DoS attacks and how it can be detected in the network. Existing methodologies for finding a malicious node that causes traffic jamming is based on node’s retains value. The proposed approach finds a malicious node using reliability value determined by the broadcast reliability packet (RL Packet). In this approach at the initial level, every node has zero reliability value, specific time slice, and transmission starts with a packet termed as reliability packet, node who responded properly in specific time, increases its reliability value and those nodes who do not respond in a specific time decreases their reliability value and if it goes to less than zero then announced that it’s a malicious node. Reliability approach makes service availability and retransmission time

Adjusting planting time of Binadhan-17 in boro season

Boro rice (grown in winter under irrigated condition) contributes to the major portion of rice production (over 50%) in Bangladesh. Binadhan-17 is a green super rice developed by BINA which requires 30% less nitrogenous fertilizer and water which is grown in aman season (primely produced under rainfed). Due to it’s increasing popularity and adoption rice growers are keen to cultivate it in boro season also. Taking account of the above situation, two field trials were conducted at Magura during November 2019 to May 2020 to investigate the effect of variety, sowing dates and their interaction. Factorial RCBD (Randomized Complete Block Design) was applied for experimentation. Two rice varieties: Binadhan-17 (V1), BRRI dhan58 (V2) and three sowing times: 30th November (T1), 10th December (T2), 20th December (T3) were used as treatments. 35 days old seedlings were transplanted in main field. Relevant agronomic and morphological data were statistically analyzed through Statistix 10.0. Combined effect of the above factors at farm exposed that, T1×V1 required longest days (159.33 days) to mature. but, comparatively short life cycle (149.97 days) was observed by T3×V2. Maximum grain was yielded (7.70 t/ha) by T2×V1 and minimum (5.74 t/ha) by T1×V1 treatment combination. Outcomes of on station revealed that, T1×V1 needed more days (158.00 days) to mature; conversely, alike duration was noted with T2×V2 (147.20 days) and T3×V2 (145.43 days) which matured quite earlier. T2×V1 produced the highest grain yield (7.41 t/ha) and T1×V2 the lowest (5.94 t/ha). Our results indicate that, planting of Binadhan-17 on 10th December may give insect-disease free grains with optimum yield in context of Magura region. Farmers will be financially benefited if they cultivate this variety in the boro season in lieu of aman; due to higher yiel

Master of Science

thesisBacteriophages, a group of viruses that infect bacteria, are the most abundant biological entities on earth and play an outstanding role in microbial population dynamics in various ecosystems. Their potential as a driving force in the evolution of microbial communities through controlling the bacterial population, naturally selecting phage-resistant bacteria, and facilitating horizontal gene transfer has been studied mostly in an isolated environment like a laboratory setting. However, few studies have demonstrated the interaction between phages and the microbial communities in different natural ecosystems and hypersaline environments. The purpose of this research was to study the role of bacteriophages in functional gene transfer and how their hosts affect different nutrient cycles along with the interaction between bacteriophages and bacteria in a natural ecosystem using metagenomics approach with the knowledge of the state-of-the-art bioinformatics. The ecosystem studied in this research was the hypersaline Great Salt Lake, the largest salt water lake in the Western Hemisphere, for understanding the phage-host interactions. The sediment and water samples were collected from the deep brine layer of the Great Salt Lake, and analysis was conducted for different biogeochemistry. Also, the sediment sample was analyzed for both bacteria and viruses (bacteriophages) with metagenomics approach. Analyzing the viral and bacterial metagenomes explored the GC content, oligonucleotide frequency, genetic homology, Clustered Regularly Interspaced iv Short Palindromic Repeats (CRISPRs), and prophage identification. The in-depth metagenomics analysis identified phage and bacterial communities extensively and their effects on various nutrient cycles. This study also showed the variation in the prokaryotic community involved in various biogeochemical cycling due to the salinity gradient in the south arm caused by the railroad causeway constructed between 1955 to 1959, which divided the lake into two highly variable saline parts. The findings of microbial population, diversity, and their functional genes in this research using metagenomics approach will enhance the understanding of the bacterial and viral diversity in the Great Salt Lake and will be supportive in establishing metabolic models to better study the microbial interaction in various hypersaline ecosystems

Solid State Synthesis and Characterization of Apatite Based Ceramic Waste Form for the Immobilization of Radioactive Iodine

The growing demand for nuclear power in the United States and worldwide is accountable for addressing the major concern of radioactive waste, involving the technical challenges of maintaining the nuclear fuel cycle and immobilizing high-level wastes for safe disposal in geological storage. The appropriate selection of waste forms for spent nuclear fuel such as fission products and radionuclides can be effective means for a feasible and sustainable nuclear fuel cycle. But highly volatile radionuclides such as iodine (129) are of specific concern due to its extraordinary long half-life (15.7 million years). Due to its poor solubility and high volatility at traditional glass processing temperatures (~1000 oC), iodine is not suitable for processing using traditional vitrification routes. As a result, significant researches have been done to develop a viable waste form for immobilizing iodine. Among the most proposed waste forms, apatite-based ceramics have been proposed as promising candidates for immobilization of iodine due to its high-level nuclear waste loading, high chemical stability, structure flexibility, promising thermal and radiational stability, and low leaching rate. In this study, we introduce the first reported instance of solid-state synthesis of barium vanado iodoapatite (Ba5(VO4)3I) by a high-energy ball milling machine and spark plasma sintering (SPS) technique. Various characterization tools were used to characterize the synthesized materials. Understanding the mechanism of releasing radionuclides stored in nuclear waste forms in different environments is also crucial for the secure removal of nuclear waste. The effect of aqueous environment on iodine release of SPS sintered barium iodoapatite was investigated by conducting semi-dynamic leaching tests on bulk samples. The experimental analysis revealed that the iodine release rate from iodoapatite is affected by the solution chemistry. Irradiation experiments were conducted by using energetic ions and electrons to simulate radiation effects by α-decay and β-decay events, respectively in order to understand the radiation tolerance of this synthesized apatite structure and the underlying physics for the design of advanced nuclear waste forms. The results indicated that the SPS-sintered pellets can have significantly enhanced radiation tolerance of the iodoapatite against displacive radiation-induced amorphization due to the improved crystallinity by the highly efficient sintering process

A PROPOSED RANDOM WALK MODEL FOR MOBILE CELLULAR NETWORK

A random walk model of mobile cellular network is essential for analysis of roaming and handover of the network. Since handover call arrival is an important parameter of mobile cellular network traffic hence efficiency of a random walk model play important role in both network planning and channel management. This paper proposes a new random walk model of hexagonal cell cluster, exclusively done by the authors and a comparison is made with existing two models. The proposed model shows better performance in context of number of probability states compare to the existing models. 1