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A Study on the Development of Touchless Mouse by Object Tracking through Webcam

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International Journal of Internet and Distributed Systems 2023年第1期5卷 1-17页

作者： Mohammad Alauddin Shamim Ahmed Rokshana Akter md. Amanat Ullah md. abdul Mannan Department of Computer Science & Engineering Uttara University Dhaka Bangladesh Department of Mathematics Uttara University Dhaka Bangladesh

In this paper, we study the continuous growth of computer technology and the increasing importance of human-computer interaction. Interactive touch-less is now an undergoing developing technology in real life. Touchless technology introduces a new way of interacting with computers by object tracking method. Nowadays most mobile devices are using touchscreen technology. However, this technology is still not cheap enough to be used in desktop systems. Designing a touchless device such as a mouse or keyboard using a webcam and computer vision techniques can be an alternative way of touch screen technology. Recent trends in technology aim to build highly interactive and easy-to-use applications as a replacement for conventional devices. Such a device is touchless mouse. Its development is completed on the MATLAB platform. The overall objective is to apply image processing techniques from video to track the movement of color which is captured by a webcam and that is converted into mouse movements and operations to control the system. The sub-system which is implemented here would allow a person to control his/her mouse without any input other than the marker movements. We use three fingers (with color) as three color markers (red, green, blue) for completing the activities of a mouse. My first goal was to successfully track the marker color and the second goal was to track the marker position from the acquired image frame for performing the mouse operations. The webcam is used to capture the information on the marker and trigger the associated actions. I use ***. Robot file for performing the mouse operations using the acquired data from the image frame.

关键词： MATLAB GUI RGB DIP Matrix

Optimized Design and Analysis of Single-Phase and Three-Phase Inverters for Efficient Power Conversion: A Comparative Study

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Journal of Computer and Communications 2023年第8期11卷 71-95页

作者： Ashik Alam md. abdul Monem Kazi Khairul Islam Department of Electrical and Electronic Engineering Bangladesh Army University of Engineering and Technology (BAUET) Natore Bangladesh Department of Mechanical Engineering Bangladesh Army University of Engineering and Technology (BAUET) Natore Bangladesh

A large amount of switching loss occurs in the inverter. From this point of view, an inverter design should be optimized for which size and cost will be minimum along with increasing efficiency. The main aim of this paper is the analysis and development of single-phase and three-phase inverter to design with MOSFET and IGBT as power elements by sinusoidal pulse width modulation (SPWM) technique using MATLAB Simulink software and compare their difference with the practical inverter. This work proposes different multilevel stages for the cascaded H-Bridge inverter to enhance the output voltages. Then compare their performance, harmonic distortion, and frequency spectrum. The hardware of an inverter circuit has been developed using the SG3524 microcontroller. The main goal of this design is to generate a sine wave with fewer harmonics, while keeping the cost and complexity of the circuit low. The designed inverter has undergone testing with different AC loads and is primarily intended for low-power applications, as lamps, fans, and chargers. This design aims to provide a reliable and efficient inverter solution for these specific applications.

关键词： Harmonic Distortion (HD) Pulse Width Modulation (PWM) Sine Pulse Width Modulation (SPWM) Total Harmonic Distortion (THD) Laboratory (LAB)

Evaluate All the Order of Every Element in the Higher Order of Group for Addition and Multiplication Composition

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International Journal of Modern Nonlinear Theory and Application 2022年第2期11卷 11-30页

作者： md. abdul Mannan Nazmun Nahar Halima Akter Momtaz Begum md. Amanat Ullah Shabnam Mustari Department of Mathematics Uttara University Dhaka Bangladesh Department of Computer Science & Engineering Prime University Dhaka Bangladesh Department of Computer Science & Engineering Uttara University Dhaka Bangladesh Department of Mechanical Engineering Sonargaon University Dhaka Bangladesh

This paper aims at treating a study on the order of every element for addition and multiplication composition in the higher order of groups for different algebraic structures as groups;order of a group and order of element of a group in real numbers. Here we discuss the higher order of groups in different types of order which will give us practical knowledge to see the applications of the addition and multiplication composition. If G is a finite group, n is a positive integer and a ⋴G, then the order of the products na. When G is a finite group, every element must have finite order. However, the converse is false: there are infinite groups where each element has finite order. For example, in the group of all roots of unity in C× each element has finite order. Finally, we find out the order of every element of a group in different types of higher order of group.

关键词： Order of Element of a Group Addition Composition Multiplication Composition Modulo

Securing 3D Point and Mesh Fog Data Using Novel Chaotic Cat Map

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Computers, Materials & Continua 2023年第3期74卷 6703-6717页

作者： K.Priyadarsini Arun Kumar Sivaraman abdul Quadir md.Areej Malibari Department of Data Science and Business Systems School of ComputingCollege of Engineering and TechnologySRM Institute of Science and TechnologyKattankulathurChennai603203India School of Computer Science and Engineering Vellore Institute of TechnologyChennai600127India Department of Industrial and Systems Engineering College of EngineeringPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia

With the rapid evolution of Internet technology,fog computing has taken a major role in managing large amounts of *** major concerns in this domain are security and ***,attaining a reliable level of confidentiality in the fog computing environment is a pivotal *** different types of data stored in the fog,the 3D point and mesh fog data are increasingly popular in recent days,due to the growth of 3D modelling and 3D printing ***,in this research,we propose a novel scheme for preserving the privacy of 3D point and mesh fog *** Cat mapbased data encryption is a recently trending research area due to its unique properties like pseudo-randomness,deterministic nature,sensitivity to initial conditions,ergodicity,*** boost encryption efficiency significantly,in this work,we propose a novel Chaotic Cat *** sequence generated by this map is used to transform the coordinates of the fog *** improved range of the proposed map is depicted using bifurcation *** quality of the proposed Chaotic Cat map is also analyzed using metrics like Lyapunov exponent and approximate *** also demonstrate the performance of the proposed encryption framework using attacks like brute-force attack and statistical *** experimental results clearly depict that the proposed framework produces the best results compared to the previous works in the literature.

关键词： Chaotic cat map fog computing encryption 3D point fog 3D mesh

Predicting and Curing Depression Using Long Short Term Memory and Global Vector

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Computers, Materials & Continua 2023年第3期74卷 5837-5852页

作者： Ayan Kumar abdul Quadir md.J.Christy Jackson Celestine Iwendi School of Computer Science and Engineering Vellore Institute of TechnologyChennai600127India School of Creative Technologies University of BoltonBoltonUK

In today’s world, there are many people suffering from mentalhealth problems such as depression and anxiety. If these conditions are notidentified and treated early, they can get worse quickly and have far-reachingnegative effects. Unfortunately, many people suffering from these conditions,especially depression and hypertension, are unaware of their existence until theconditions become chronic. Thus, this paper proposes a novel approach usingBi-directional Long Short-Term Memory (Bi-LSTM) algorithm and GlobalVector (GloVe) algorithm for the prediction and treatment of these *** and fitness bands can be equipped with these algorithms whichcan share data with a variety of IoT devices and smart systems to betterunderstand and analyze the user’s condition. We compared the accuracy andloss of the training dataset and the validation dataset of the two modelsnamely, Bi-LSTM without a global vector layer and with a global vector *** was observed that the model of Bi-LSTM without a global vector layer hadan accuracy of 83%,while Bi-LSTMwith a global vector layer had an accuracyof 86% with a precision of 86.4%, and an F1 score of 0.861. In addition toproviding basic therapies for the treatment of identified cases, our model alsohelps prevent the deterioration of associated conditions, making our methoda real-world solution.

关键词： Emotion dynamics depression heart rate internet of things global vector long short term memory machine learning sentiment analysis

Recent Development of Sustainable Ecological Flame Retardant Textile Composite Material: A Review

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Journal of Materials Science and Chemical Engineering 2022年第6期10卷 30-44页

作者： Golam Mahmud Faysal md. Arefin Kowser Mohammad abdul Jalil Department of Textile Engineering Northern University Bangladesh Dhaka Bangladesh Department of Mechanical Engineering Dhaka University of Engineering & Technology (DUET) Gazipur Bangladesh Department of Textile Engineering Khulna University of Engineering & Technology (KUET) Khulna Bangladesh

The ecological and sustainable product is the demand of the present world. But it was not possible to produce an ecological and sustainable product for all sectors as the world requires now. The synthetic material is used to produce flame retardant materials due to the unavailable sustainable ecological flame-retardant material. But different researchers are trying to produce sustainable ecological flame-retardant material. This research found that the Spinach leaves Juice, banana pseudostem sap (SAP) and eggshell powder have flame retardant properties. Different literature shows that the ash also has flame retardant properties. So researcher suggested developing the composite material from the above materials with cotton fibres. It may be more effective as fire-retardant composite materials.

关键词： Sustainability Ecology Flame Retardant Material

Assessing household perception,autonomous adaptation and economic value of adaptation benefits:Evidence from West Coast of Peninsular Malaysia

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Advances in Climate Change Research 2022年第5期13卷 738-758页

作者： Sofia EHSAN Rawshan Ara BEGUM Khairul Nizam abdul MAULUD md.Shahin MIA Earth Observation Centre Institute of Climate ChangeUniversiti Kebangsaan MalaysiaUKM Bangi 43600Malaysia Centre for Corporate Sustainability and Environmental Finance Macquarie UniversityNew South Wales 2109Australia Department of Civil Engineering Faculty of Engineering&Built EnvironmentUniversiti Kebangsaan MalaysiaUKM Bangi 43600Malaysia School of Economics Finance and BankingUniversiti Utara MalaysiaSintok 06010Malaysia

Climate change is causing sea-level rise,intense and frequent storm surge flooding,and significant shoreline erosion in Malaysian coastal ***,coastal properties,infrastructure,and livelihoods are *** has become apparent that adaptation at the household and community level is necessary to offset the adverse impacts of coastal *** community needs to be made aware of the risks,acquire knowledge about adaptation options,and be empowered to take their own *** perception and preference are therefore crucial for design and implementation of effective planning for climate ***,this study assesses households'perception,adaptation measures and empirically estimates willingness to pay and preference for planned adaptation measures to guide policy instruments through public *** Malaysia,ten highly vulnerable coastal areas in the Selangor coast were surveyed at the household level(n=1016)through face-to-face interviews using a structured *** households’perception and adaptation methods,most of the households in the highly exposed areas perceived less risk of inundation and sea-level rise threat and adopted less proactive adaptation and limited risk reduction behaviours during the extreme *** study found that 66.9%of households were willing to pay for planned adaptation measures despite the limited income capabilities and in favour of moderate adaptation(23.9%).The binomial and ordinal regression results indicated that the probability of willingness to pay for planned adaptation measures significantly increases with age,prior exposure to coastal hazards,awareness,risk perception,community participation,being affected by property damage and loss of income due to extreme *** increased monthly household income and access to telecommunication services,households will probably pay higher for better adaptation measures.A significant amount of perceived yearly adaptation benefits in the coasta

关键词： Risk perception Climate awareness Public engagement Factors affecting adaptation Willingness to pay

Consumer Acceptance and Physicochemical Properties of Developed Carambola (Averrhoa carambola) Candy

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World Journal of Engineering and Technology 2022年第2期10卷 458-471页

作者： Most. Jesmin Akhter md. Mojaffor Hosain md. abdul Halim Mehar Prabin Shanaz Parvin Ayesha Siddika Fatehatun Noor md. Al-Amin Department of Food Processing and Preservation Faculty of Engineering Hajee Mohammad Danesh Science and Technology Uni-versity Dinajpur Bangladesh Department of Food Science and Nutrition Faculty of Engineering Hajee Mohammad Danesh Science and Technology University Dinajpur Bangladesh

The acceptability and physicochemical qualities of carambola candy were evaluated in order to increase fruit consumption. The goal of this investigation was to see whether there were any techniques to preserve carambola in the form of candy. Sugar in various forms (white sugar, corn syrup, icing sugar, and molasses) was employed in candy making process in this study. Moisture, protein, fat, ash, vitamin C, total sugar content, organoleptic quality and microbial status of the prepared candy were analyzed. Protein, fat, vit-C, and total sugar content of carrambola candy were found to be higher with white sugar solution but moisture and ash content was found to be higher with molasses. On the microbiological analysis, total fungal growth was tested visually at 0 to 90 days and compared with refrigeration and room temperature. Fungal growth was found at 90 days at room temperature for all types of carambola candy. Sensory attributes revealed that sample 2 (corn syrup-based candy) was most delicious and appreciated among other samples. The best characteristic of carambola candy was found with white sugar solution, with sufficient nutrient and lowest fungal growth than candy prepared with corn syrup, icing sugar solution and molasses.

关键词： Carambola Candy Proximate Composition Organoleptic Properties Shelf-Life Stability

Effects of variation in seed sources and pre-sowing treatments on seed germination of Tamarindus indica: a multi-purpose tree species in Bangladesh

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Forestry Studies in China 2013年第2期15卷 121-129页

作者： md. Salim AZAD Nurun NAHAR md. abdul MATIN Forestry and Wood Technology Discipline Khulna UniversityKhulna 9208 Bangladesh Faculty of Forest Sciences and Forest Ecology Georg-August UniversityGoettingen 37077 Germany

We investigated the morphology and germination of Tamarindus indica seeds in order to discover the ef- fects of variation in seed sources and pre-sowing treatments on germination. The experiment was carried out in the nursery of the Forestry and Wood Technology Discipline, Khulna University, Bangladesh. Seeds were collected from different but healthy trees from various locations in Bangladesh and subjected to four pre-sowing treatments, i.e., control, immersion in cold water （4℃ for 24 h）, immersion in hot water （80℃ for 10 min） and scarification with sand paper. Seed germination was carried out in poly-bags with a mixture of topsoil and cow dung in the ratio of 3：1. The average length of the fresh seeds was 1.35 ＋ 0.26 cm, their width 1.07 ＋ 0.20 cm and thickness 0.69 ＋ 0.11 cm. The results revealed that pre-sowing treatments affected the germination process of seeds, which significantly increased the germination percentage with the cold water （81.67%） and scarification with sand paper （82.33%） treatments, compared with those in the control （58.33%） and hot water treatment （59.00%）. In all treatments germination started on average within 5 to 7 days after the start of the treatments and were completed from 13 to 19 days later. The greatest success in germination （82.33%） was found in scarification with sand paper, followed with 81.67% in the cold water treatment. The results of analyses of variance （ANOVA） showed significant differences （p 〈 0.05） in germination closing dates, seed germination periods and germination percentages among the treatments but no significant difference among seed sources. However, the effect of the interaction between seed source variation and pre-treatment differed significantly in seed germination closing dates and germination percentages. We recommend cold water treatment （submersion of seed at a temperature of 4℃ for a 24-h period） for seed germination of T. indica in rural Bangladesh.

关键词： germination techniques provenance variation scarification seed dormancy water treatment