International Journal of Mobile Computing Devices
International Journal of Mobile Computing Devices (IJMCD) Editor-in-Chief Dr. P. Devabalan Professor, Department of Computer Science and Engineering, BVC Engineering College (Autonomous) Odalarevu, Allavarammandal, East- Godhavari District Andhra Pradesh, India Email: devabalanme@gmail.com Click here for complete Editorial Board International Journal of Mobile Computing Devices (IJMCD) is a journal focused towards the rapid publication of fundamental research papers on all areas of mobile computing devices. It's a biannual journal, started in 2015. Journal DOI No: 10.37628/IJMCD Readership: Graduates, Postgraduates, Research Scholars, in Institutions, and IT Companies Indexing: The Journal is indexed in Google Scholar Focus and Scope Smartphones Tablet computer Ultra-mobile pc Wearable computer In-vehicle computing and fleet computing Enterprise digital assistant Location-based service Mobile ad hoc networks Mobile computing and communications Mobile development Mobile cloud computing Mobile device management Mobile identity management Mobile software Enabling technologies (e.g. Bluetooth, BANs, PANs, LANs) Positioning and tracking technologies Submission of Paper: All contributions to the journal are rigorously refereed and are selected on the basis of quality and originality of the work. The journal publishes the most significant new research papers or any other original contribution in the form of reviews and reports on new concepts in all areas pertaining to its scope and research being done in the world, thus ensuring its scientific priority and significance. Manuscripts are invited from academicians, students, research scholars and faculties for publication consideration. Papers are accepted for editorial consideration through email info@journalspub.com or nikita@stmjournals.com Abbreviation: IJMCD Frequency: Two issues per year Editorial Board Instructions to Authors
Speech Recognition Using Multi-Deep Learning Techniques for Person Identification
Speech recognition is one of the fastest-growing technologies. It offers multiple potential benefits and has varied applications in numerous sectors. Many individuals are incapable of conversing with one another due to language barriers. We intend to reduce this barrier through our project, which was designed and developed to achieve solutions in specific settings that considerably assist individuals in sharing information by using voice input to control a computer. It is possible to do speech recognition tasks after gaining knowledge in a variety of disciplines, including linguistics and computer science. It is not a solitary endeavour. Speech recognition techniques include HMM (hidden Markov model), DTW (dynamic temporal warping)-based voice recognition, neural networks, deep feedforward and recurrent neural networks, and end-to-end automatic speech recognition. Different neural networks utilized for automatic voice recognition are the major topic of this study. In this work, a convolutional neural network (CNN) is used in an effort to develop a system that can identify a human speaker (CNN). This study employs the mel-frequency cepstral coefficients (MFCC)-CNN and raw waveform (RW)-CNN techniques. The first approach is a traditional one that makes use of MFCC and the audio features, which are then entered into CNN to carry out a process. The suggested CNN's training process will start by accepting input in the form of a picture. The second approach, RW-CNN, follows the identical processes as the first approach but bypasses the MFCC phases in favour of straight admission to CNN. Both techniques employed the same CNN structure. In this study, both RW-CNN and MFCC-CNN achieved an accuracy of 96%.
Copyright (c) 2023 International Journal of Mobile Computing Devices
A new web-based service is proposed in this paper that merges the innovative Alan Studio, News API and React technologies. The aim is to create a voice-controlled web application that provides a simple and user-friendly experience. This service combines all necessary components to allow users to find news through voice and speech. The voice-controlled system integrated into the web application enhances the user experience by offering voice as a means to control e-commerce websites. The system also allows users to search for news based on their preferred geographic location, news source, subject, and interest. The user-friendly, dynamic, and informative design of the system enables users to stay informed and updated through one of the most popular technologies in the world. By reducing the effort required from the user, this system offers a more exciting way of staying informed.
Making “Technology Education” More Valuable by Using Design Thinking
Teachers' lesson plans and the written and unwritten curricula they teach reflect a social current that influences students' education. This social dynamic is reflected in the categorization and hierarchy of school subjects in the classroom instruction. Secondary school topics and their related status grew increasingly widespread throughout the Industrial Revolution. It has a huge influence on our perspective of educational courses and how important they are, given this historical backdrop. Many students now prioritize some courses above others because of the significance of the subject content. Literacy in language and numeracy in mathematics and science are always at the top of the list in this paradigm. How current are “The Technologies”? We need to consider whether or not Australia's education system can be used to mold the minds of future students in the best possible way while the country's education system is being restructured. What curriculum is called “The Technologies” a part of? As part of “The Technologies,” we focus on teaching creative thinking and problem solving as well as practical learning and research. Students will be able to continue learning throughout their lives as a result. Educators throughout the globe believe that educating pupils to think creatively is just as important as teaching them to read and do arithmetic. Because of this, why is technology taught in Australia with such a lack of respect? Examining the present state of Australian education through the prism of The Technologies, this study will identify the current position of the Australian educational system and analyze the reasons of this. “The Technologies” will be explained in terms of how a problem grows to prominence in the community, and the authors will provide strategies to boost the profile of the book in both classrooms and the broader public. Technology, Design and Science and Engineering and the Hierarchy of Subjects Creativity, Identity as a teacher and critical thinking abilities.
Multipath Clustering Base Routing by Grey Wolves Optimization in Ad Hoc Network
Mobile ad hoc network (MANET) is a network that lacks infrastructure. It is composed of a network of wireless mobile nodes (such as a laptop or a smart phone) able to communicate with one another. Nodes can communicate with one another via intermediate nodes, which communicate information by forwarding packets. Nodes use routing protocols like Ad-hoc On-Demand Distance Vector (AODV) and Destination-Sequenced Distance Vector (DSDV) to support this type of communication. In an ad hoc network, AODV routing protocols, and the DSDV are being used to determine a route to the destination. In a network, almost every node works as both a host and a router, selecting the optimal path and passing packets to the correct node. Since nodes can roam freely and join or leave the network at any one-time, ad hoc networks are by nature dynamic. The Grey Wolf Optimization strategy and the Tabu search may be used to optimize the selection of the cluster head. The Grasshopper Optimization technique, on the other hand, can be utilized to optimize the size of the cluster depending on the sink. The quality of the delivery of the packets has an effect on the performance of the quality of service (QoS). In this paper, the quality of the QoS support provided by the recommended solution is assessed using metrics such as latency, packet loss, and throughput. The suggested technique is based on a solution that is referred to as “multipath integrity”, which distributes the network's capacity from higher to lower data resources. As soon as the sensor nodes use the same pathways for routing, the proposed method is based on this solution.
Enhancement in Elderly Healthcare and Well-Being Software
We have been working all our life for wealth, however, it is always said that “The greatest wealth is health.” The health of humans deteriorates as they age. This leads us to understand that we should improve healthcare not just by focusing on the medicines but also by focusing on wellness. As they say, prevention is better than any cure, and if an elderly person stays fit, it is said that a stitch in time saves nine. Recovery rate in the elderly also leads us to the topic on the enhancement in elderly healthcare and wellness software.
The AR Copy Paste app allows you to digitalize the real-world around us. This application does not use the standard copying-image method. It uses a single application, which uses Augmented Reality and Machine Learning to discover different objects in the environment and attach them to computer image editing software directly. The app then removes the background and saves the item itself. This technology will make designers' jobs lot easier since they will be able to aim their phones' cameras at the object and copy-paste it onto their PCs rather than taking a picture, editing it, and adding the cut on the PC. Augmented reality (AR) is the sensible incorporation of a certifiable environment in which the objects that remain inside the world are updated by PC produced perceptual information, occasionally over multiple tangible modalities, including visual, hear-able, haptic, somatosensory, and olfactory. AR is routinely described as a system that satisfies three fundamental features: a mix of veritable and virtual universes, continuous association, and accurate 3D enrolment of virtual and veritable articles. The overlaying physical data may be advantageous (for instance, adding substance to the native habitat) or dreadful (for example veiling of the regular environment). This contribution is reliably intertwined with the actual world such it is viewed as a vivid point of the indispensable environment. In human-PC communication and connection point plan, cut, copy and paste are connected orders that give a between cycle specialized strategy for trading data through a computer’s interface. The cut order clears the picked data from its exceptional position, while the copy order makes a duplicate; in the two cases, the picked data is kept in temporary limit (the clipboard). The data from the clipboard is a while later implanted at any place a paste order is issued. The data remains available to an application supporting the feature, in this way allowing basic data trade between applications. With present day advancements in AI, it is feasible to identify individuals and articles around us precisely, eliminate the foundation consequently and move the outcome to a PC. Until now, AR had been used to wander high level pictures into the certifiable world. However, the AR Cut and Copy application inverts the cycle and brings physical things into the computerized world
Copyright (c) 2022 International Journal of Mobile Computing Devices
Empirical and Statistical Study on Android Mobile and Windows Mobile Phones
People currently use various types of mobile models. Different mobile devices from various manufacturers run on various operating systems. For example, Android, Windows, and iPhone. Which mobile operating system is the best for people? And what features are included in that operating system. It will be discovered what kinds of facilities benefit our people. What is the ideal operating system for our society and its people? Style, performance, appearance, and any other Android or Windows operating system features. People are making comparisons between the Android and Windows operating systems. Which operating system, Android or Windows, is better for daily use? People can then make well-informed decisions about how and what they use on a regular basis. Because everyone in the world has gone mobile these days. As a result, people are attempting to determine which operating system is best for our society and which operating system is best for our children's future education. Sangola city residents, such as the rest of the world, are interested in the Android operating system. What operating system benefits the user more? Additionally, users are submitting in a suitable and comfy operating system.
Augmented Reality Based Menu Card for Multi-cuisine Restaurants
The distance between the user, the product, and the product content may be closed using augmented reality. The capacity to overlay additional information, visual stimulus, and interaction on top of certain goods allows product businesses to link the digital and physical worlds in a targeted and seamless manner. The excitement of being in a restaurant is at its peak like everybody wants to go to multi-cuisine restaurants to eat fancy dishes. Augmented Reality is important in the development of technology and in increasing the demand for restaurants that use new technology. When you visit a restaurant that uses such technology, you simply place your smartphone in front of the menu card and click on the menus you want to order from. You have to click on the physical menu which as a result pops up a few tiles that will give you detailed information on your device. The objective of integrating cellphones and augmented reality technology is substantial, and its successful implementation yields even bigger advantages.
Shaming Tweet Detection Using Machine Learning
Twitter is a social media platform with more than 300 million users and a massive amount of data generated every day with its use. Users should be able to tweet in real time about current events, conditions, thoughts, opinions, or even something completely new. The most important element of Twitter is that there is no system in place to ensure accuracy or dependability, anyone can say whatever they want. This form of Twitter brawl can be an easy technique to attack your opponents while simultaneously giving them the opportunity to attack you. To aid in the discovery of shammers and the shaming of shammers’ tweets, this survey included a range of hate speech detection and machine learning software. Due to the rise of online social networks and an increase in public shaming instances, people are speaking out against site owners' activities. Public shaming on online social networks and related online public forums, such as Twitter, has expanded in recent years. These incidents have been shown to have a negative impact on the victim's social, political, and financial well-being. Despite the obvious harmful repercussions, little has been done to solve this in popular online social media, with the justification that the huge volume and diversity of such comments requires an insurmountable number of human moderators to finish the work. In this study, we automate the process of identifying public shaming via Twitter from the perspective of victims, concentrating on two aspects: incidents and shamers. The six types of humiliating tweets include abuse, comparison, passing judgment, religious/ethnic, sarcasm/joke, and whataboutery, and each tweet falls under one of these.
Social Media Application Using MERN Stack Technologies
A social media clone is a web-based application which is similar to the modern-day social media applications but provides the basic functionalities. It is not intended to exactly copy the features from its parent application. MERN stack works with the ideology of a full stack development using four main components as the building blocks. MongoDb, a NoSQL based open-source database which follows the json like data format to save, or in general, store the data corresponding to the given user. ExpressJS, a node.js based JavaScript framework which is exclusively meant for the purpose of moderate and complex mobile and web applications development. Various features enable the application its versatile environment. ReactJS (developed by Facebook) has a different model handling capability. Instead of referring to the browser’s model, it builds its own virtual model where any data manipulation of the application takes place. It is used for the development of the UI based components of the web application or the website. NodeJS is the open-source framework which is actually the server environment for the web application. The main task of the NodeJS is to receive the request from client and return the requested content to it. This application can be used specifically in the photography industry and in the analytics of identifying the type of photos preferred by the audience of a particular location, age, gender etc.
Ranking of Mobile Phones by Using Multi-Criteria Decision Making Methods with Equal Weightage Criteria
Exponential growth of various mobile applications has led the users to uncertainty and difficulty in selecting proper application which suits to their requirements and needs. As a result, there is an urgent need for automated and efficient mobile device selection with requisite applications. The Users must first evaluate the application store ratings or the content rated by the application developer. The multi criteria decision making (MCDM) theory is the best methodology for decision making. The study undertaken here is for evaluating the best mobile phone from the accessible alternatives. Alternatives were considered with the attributes i.e., cost, camera, look and storage capacity of the mobile phone. For selection of the mobile phone that serves the purpose the Additive Ratio Assessment (ARAS), the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) and VIKOR method is applied to evaluate best mobile phone. This methodology of decision making is advantageous for the engineers and managers in selecting the proper mobile phone. The current research has been streamlined for understanding the compatibility and the efficiency of the selected mobile set for the study of complex mathematics for the target audience. The selection process primarily uses the multi criteria decision making (MCDM) theory.
GSM/EDGE is the industry's next evolutionary step in the cellular system, with improvements to its service provisioning for the packet-switched domain and improved alignment. These developments are being planned for future 3GPP standard releases. Geran will provide improved support for all UMTS quality of service (QoS) classes: interactive, background, streaming, and conversational, based on EDGE high-speed transmission techniques combined with GPRS radio link interface enhancements. As a result, a new set of applications will be well supported, including IP multimedia applications. This paper's goal is to provide an overview of the EDGE concept. It provides a global overview of the migration of second generation systems to International Mobile Telecommunications. It also discusses the rationale for developing the EDGE concept, such as standardisation background and efforts, aspects of introducing EDGE in GSM, and capacity and coverage performance. Furthermore, multimedia applications will be supported by multiple concurrent bearers with varying QOS characteristics towards the same MS, such as the handling of multiple media streams via the IMS domain. One driver of such evolution on the packet-switched side is the paradigm shift in the telecommunications world from circuit to packet-switched communications. Both the GPRS core network and the current GSM/EDGE radio access network must be modified to support enhanced packet services. GPRS/EGPRS networks can rapidly and cost-effectively evolve to meet market demands and align with the services of WCDMA networks.
Survey Paper on Massive MIMO in 5G Technology
Massive MIMO is becoming an important technology for Fifth generation (5G) mobile communications as there is a dramatic increase in the usage of wireless devices. Massive MIMO improve key performances such as less data loss, less buffering, high data rate, high spectral efficiency and high throughput. Massive MIMO is an upgraded version of MIMO which includes massive number of antenna which are 100 times more than the traditional MIMO. The result increases 10 times of spatial efficiency and throughput. With the need for higher frequency bandwidth in 5G, the most used frequency band is in the 26–28 GHz range with extremely short wavelength. Thus, due to the large signal attenuation, it naturally causes the signal distribution distance to be shortened. Compared to 4G mobile communications, the overall performance of 5G may be lower than 4G with the higher frequency band, but it can be compensated by using more antennas for the large MIMO integrated with more antenna gain for each antenna element. The frequency range for massive MIMO that gains more attention is 30–300 GHz which is also known as millimeter-wave (mmWave). Massive MIMO uses millimeter-wave or mmWave which provides a wireless networking platform which consist a wireless network of small cells and provide very high data rate.
A Review on Cloud Computing and Virtualization
The concept of cloud computing provides a paradigm for storing data over the cloud. It can be further used for data analysis and forecasting. A lot of business enterprises are moving on to cloud computing due to numerous advantages as it allows us to store millions of data without any loss, maintains the privacy of data, provides valid authenticity. The virtualization is the key features of the cloud computing. The cloud computing attribute provides new security challenges that are not understood yet. Cloud computing used to store the data and when the data is stored on clouds then security of data is very much essential aspects in the technology of cloud computing. A basic process of storing data in the cloud is to encrypt the data and store it in the cloud and provide the decryption key to its authenticated user. Cloud services are managed by various individuals such as cloud auditor, cloud broker; cloud carrier, cloud provider and services are accessed by cloud consumers. This paper summarizes the concept of virtualization in the field of cloud computing and various pros and cons of it.
Evolution of Mobile Cloud Computing: A Review
In today’s world, mobile phones play a very important role and it has even evolved to a large extent in the past few decades, and as mobile phones are evolving with time there is an evolution in mobile cloud computing as well. Furthermore, with the development of MCC, there's an appeal for versatile cloud applications as well. People are seeking methods that could help them in the same, and in this scenario, Mobile Cloud Applications comes into play. So, at first, this paper would discuss the evolution of MCC. Then it would be discussing what’s the current scenario of MCC.
Communication on Android Smartphone via Wi-Fi Direct Application
The WI-FI Direct is become very popular and compatible and suit abled candidate for doing communication in many application domains by including information distribution, resource sharing, emergency data sharing. Wi-Fi Direct, at first called Wi-Fi P2P (Peer-To-Peer), is a Wi-Fi standard empowering gadgets which effectively associate with one another without requiring a remote passage. Wi-Fi Direct is able to allow two devices to communicate with each other without requirement of any access point. It is a wireless Communication and data transfer technology. It assists with sharing the records that are substantial in size at a quicker rate. Wi-Fi Direct gadgets can interface with one another without going through a passage, in other words you don't have to utilize your switch. It is offline file sharing application, so you don’t need any internet connection for sharing files. The thought behind Wi-Fi Direct is that basic assignments need straightforward associations it is offline file sharing application, so you don’t need any internet connection for sharing files. The thought behind Wi-Fi Direct is that basic assignments need straightforward associations.
Copyright (c) 2021 International Journal of Mobile Computing Devices
Health Care Support Application Solution for Old Aged
In the new norm, situations are not stable enough for human kind. Also the increasing crises of new diseases and viruses led us to a situation where taking care of one’s health is a necessity to stay alive for the living in the best quality. In such situations, the deadliest risks lie with the elderly. Also, we humans are eventually influenced by the adulteration of goods and the chain of this passes from nature to us, the humans. Hence, it is an important factor for the elderly people to concentrate precisely towards their health factor for a better and healthy living. For this to work, we have to remotely monitor, boost and fathom our health which is conceivable with mobile health care applications.
Road Accident Detection Through Surveillance using SSD(MobileNet) and Alerting Nearby Health Centers
Road Accidents are a very common reason for tragic deaths and the lack of emergency medical care results in death. We live in an era of technology where we are moving towards making the city, a smart city with smart AI based traffic monitoring and reporting mechanisms that can help provide medical emergencies in real time, which would result in saving lots of life. Analyzing people’s mindset and the issue of rising road accidents, this model (the Artificial Intelligence) helps the person in need without anybody getting involved. We are proposing an advanced model which can identify and detect moving objects such as vehicles in live video surveillance and predict accident based on the Velocities and Trajectories of the vehicles colliding using Centroid based tracking algorithm, reducing false alarm rate and sending alert to nearby Health Centers.
Smart Agribot: Agriculture Robot Machine
With the event in science and advancement within the recent technologies the eye of researchers is obtaining directed towards 2 fields – Farming and Robotics. however, the mixture of Farming with robotics will serve expeditiously for several issues and overcomes the limitation of previous technologies. This paper strives to develop an agricultural automaton capable of activity operations like ploughing, watering, seed dispensing and fruit picking. The main components here are Arduino Uno, Raspberry pi and Robotic arm that supervises the entire process. Initially the robot proceeds to ploughing and then start dispensing seeds and watering will start after this. For controlling these processes, the robot uses the Bluetooth pairing app as control device and helps the movement of the robot. The idea of fruit selecting is delineating below the working domain. Farmers these days pay a great deal of cash on machineries that facilitate them decrease labor value and increase yield of crops however the profit and potency don't seem to be terribly high. Automation in agriculture activities is best option to increase the yield of crops.
Analysis of High-speed Defuzzifiers in Heterogeneous Ensemble Models for the Task of Controlling a Robotic Manipulator
This article proposes high-speed defuzzifiers as part of the fuzzy inference subsystem in a heterogeneous ensemble model based on the area ratio method. By reducing the number of computational operations, the performance of the area ratio method is increased. The simulation model of the defuzzifiers is designed as a parallel-pipeline device for implementation in a programmable logic integrated circuit of the Xilinx Spartan 3e family. Experimental studies have shown that the computation time for a precise value in defuzzification is 130 ns.
Use of Technology in Agriculture for Sustainable Development
ABSTRACT The most challenging part of the 2030 Agenda for Sustainable Development (SDGs) of ending poverty in “all its form from the planet” is to provide food to 1.25 billion poor people including 629 million, children living in 116 countries. Our discovering shows that the majority of cultivating networks do not have information and ability to utilize new techniques for food creation. The ranchers in numerous nations are uninformed and rely on customary techniques for anticipating the season and development. They are denied of the advantages of the advanced investigates and generally uninformed of their jobs in forestalling environmental change and supporting the planet’s regular assets. Poor implementation of policies, absence of proper marketing, profit making behavior of middle men, lack of finances. We found that it is possible only by use of ICT technology. They get encouraged to use technology to find solutions when they face draught, flood, worm attack and for availing benefit of government schemes. The paper further propounds that the utilization of arising advancements for keen cultivating needs another way to deal with R&D and rancher’s schooling. Keywords: Develop countries, SDG, poverty alleviation, skilling farmers, smart farming, agriculture extension
Mobile Applications for Health Care Support for Elderly People
ABSTRACT Technological product and services should be tailored to the wants and preferences of those voters, for the betterment of this society. Mobile phones area unit promising tools to enhance the standard of life for the old. This work presents a review of the status of mobile functionalities and applications that can satisfy the requirements and needs of older people and improve their quality of life. Mobile Applications are becoming the most popular way for any user to use any service. Hence, elderly using mobile applications makes it easier to use the service for them. This paper outlines many wants that ought to be met to enhance the standard of analysis during this space. This work provides a basis for researchers, designers, and itinerant service suppliers to trust the present wants of the older, the developing trends within the field and also the opportunities that mobile applications provide to enhance the standard of lifetime of the older and to support a cohesive and inclusive society. Keywords: Elderly, old age, health, care, support, applications
ABSTRACT Due to the developing improvements in advanced metering and computerized advances, smart cities have been outfitted with various electronic gadgets based on Internet of Things (IoT), consequently getting more intelligent than previously. The point of this article is that of giving a complete audit on the ideas of smart cities and on their inspirations and applications. Besides, this study depicts the IoT advancements for smart cities and the fundamental segments and highlights of a brilliant city. Moreover, commonsense encounters over the world and the primary difficulties are clarified. Keywords: Internet of Things (IoT), smart city, smart grids, smart buildings, demand response, smart governance
The Evolution and Growth of Digital Marketing
ABSTRACT In this digital age, digital marketing is a mode that is sweeping across the entire world. The inclination of digital marketing is budding day by day with the ideas of online marketing that is turning into a crucial platform of digital marketing beside with the electronic gadgets like the digital billboards, tablets, and smart phones and many more that facilitate digital marketing. The huge budge in mobile, forcing brands and companies to meet the increasing consumerism demand and also it changes the way they look at the marketing platforms. And few years from now it will be eventually seen that the conventional marketing being replaced by digital marketing. Content writing is not enough to stay at the game. Visuality is important more than ever. Many creative apps and new technologies continue to rise. To attack the future, first stay tuned with the past. Keywords: Digital marketing, electronic gadgets, digital billboards, tablets, mobile, creative apps, consumerism, visuality
Survey of Augmented Reality in Anatomy Education
ABSTRACT There are different and numerous ways for students to taught and prepared as to explicit data with respect to specific details and intelligence which are vital. These methods include IT lab, study hall, pocket gadgets, and other electronic-media devices. The opportunity of acquiring knowledge by innovative technology depends on a user. During rapidly changing society, embracing and implement innovations at the noteworthy time and exact spot is required to encourage effectiveness in learning pattern. Augmented Reality (AR) is the new ongoing innovation in technology as that reflect changes in educational curriculum and training given by educators. This literature review discusses Augmented Reality, how it associates to teaching and learning pattern and training, and the future effect of AR over the long term in education. In this report, we plan to use augmented reality technology to construct an immersive learning experience that can help medical students and learners to easily understand and memorize the structure and models of anatomy with concrete, augmented reality support. Keywords: Educational technology, augmented reality, augmented reality in education, interactive learning, 3D model, anatomy
Investigation of Low-temperature Magnetic Properties of Rare Earth-based Multiferroic Nanocomposites
The magnetic phenomenon of 0.1La0.7Sr0.3MnO3-0.9ErMnO3 and 0.1La0.7Sr0.3MnO3-0.9HoMnO3 multiferroic nanocomposites has been investigated with lowering temperature. The average crystallite size of the nanocomposites was estimated using X-ray diffraction technique. The superparamagnetic nature along with a typical blocking of uncoupled core particle moments is achieved for both the nanocomposites. Moreover, low-temperature surface spin-glass nature occurs at a magnetic field of 200 Oe. Keywords: Magnetization, multiferroic, nanocomposites, surface spin freezing, XRD analysis Cite this Article: Papia Dutta, S.K. Mandal, A. Nath. Investigation of low-temperature magnetic properties of rare earth-based multiferroic nanocomposites. International Journal of Mobile Computing Devices. 2020; 6(1): 1–5.
Copyright (c) 2020 International Journal of Mobile Computing Devices
Design of Wideband C-Shaped Circularly Polarized Monopole Antenna
This paper demonstrates a “wideband C-shaped circularly polarized monopole antenna”. A circularly polarized C-shaped antenna with a rectangle ground plane on the opposite side of the substrate is designed in this paper. The antenna consists of a radiating C-shaped monopole patch antenna which gives wide circular polarized band. On the opposite side of the substrate, a rectangle ground plane has been used in order to increase the impedance bandwidth as this create coupling between radiating patch and ground plane. The proposed antenna design yields a wide band impedance bandwidth (IBW) 3.58 GHz ranging from 1.4993–5.0825 GHz and center frequency is 3.29 GHz and impedance bandwidth is 109%. Furthermore, the simulated axial ratio bandwidth (ARBW) is 485 MHz ranging from 4.155–4.640 GHz and center frequency is 4.3975 and ARBW is 11.029%. The radiation characteristic of the implemented antenna is also presented and discussed here. Keywords: Axial ratio bandwidth, C-band, impedance bandwidth, monopole antenna, radiation Cite this Article: Reshmi Dhara, Akanksha Kumari, Sanjay Kumar Jana, Sarita Kumari Gupta. Design of wideband C-shaped circularly polarized monopole antenna. International Journal of Mobile Computing Devices. 2020; 6(1): 30–41p.
Design of 21 GHz CMOS Based Differential Class-C Power Amplifier with Balun Matching Network
Nowadays, demand of portable devices is increasing day by day. One of the basic building blocks of RF transmitters is the power amplifier. The recent trend in the RF communication is to integrate the complete transceiver and the PA on a single chip. PA is preferred for boosting the power of the input and achieves large power at the output. Differential power amplifier is preferred over single stage due to better immunity to environmental noise and robust against the supply noise. The linearity can be improved by small input voltage swing, which leads to simple biasing for circuit. The power amplifier delivers the power added efficiency of 37.97 and the power gain of 28.79 dBm. Keywords: Balun based matching network (BMN), Class-C power amplifier, CMOS, 180nm technology, transciever Cite this Article: Priti Gupta, Nigidita Pradhan, S.K. Jana. Design of 21 GHz CMOS based differential Class-C power amplifier with Balun matching network. International Journal of Mobile Computing Devices. 2020; 6(1): 6–12p.
Performance Comparison of Maximum Power Point Tracking of Solar PV for Different Converters
The performance and efficiency of a solar PV power generation are the main issues typically evaluated for optimal system operation. These usually rely on the solar array conversion efficiency and atmospheric condition. The proper operational performance of a solar PV system is dependent on module efficiency, maximum power point tracking (MPPT) efficiency and inverter efficiency. MPPT is implemented to a solar PV array using a converter circuit to extract maximum power and to improve the generated power quality for supply to the load or grid connection. This paper presents the Boost, Buck and Buck-Boost converter circuits implemented with Perturb and Observe (P&O) and Incremental Conductance (INC) MPPT algorithms. The detailed operation and implementation of P&O and INC techniques are discussed. MATLAB simulations of the converter circuits integrated with the different commercial PV modules (100 W, 1000 W and 10 kW) have been carried out to understand the efficiency and operation stability for both techniques. Furthermore, the results of both cases are critically compared, and their performances discussed. The simulation results exhibit that the boost converter for the P&O performs better than the INC and the buck and buck-boost converter for the INC performs better than the P&O across all power levels. Keywords: Incremental conductance, maximum power point tracking, perturb and observe, solar PV Cite this Article: Ihechiluru Anya, Mustafa Elfeitouri, Chitta Saha, Nazmul Huda, Koushik Guha. Performance comparison of maximum power point tracking of solar PV for different converters. International Journal of Mobile Computing Devices. 2020; 6(1): 21–29p.
Full Swing Gate Diffusion Input Based NCL Threshold Gates
This paper presents a novel approach to the design of Null Convention Logic threshold gates using Gate Diffusion Input design methodology. Power and delay are the metrics of comparison between the proposed Gate Diffusion Input based Null Convention Logic gates and the conventional Null Convention Logic gates developed in literature. The efficiency of the proposed gates is illustrated by the design and simulation of NCL threshold gates using FSGDI and comparing the same with conventional static CMOS gates. The proposed FSGDI NCL gates offered 37%, 23% and 44% reduction in average power, average delay and average power delay product. Keywords: FSGDI, full swing gate diffusion input, gate diffusion input, GDI, low power, NCL, NCL threshold gates, null convention logic Cite this Article: Anitha Juliette Albert, Murugan R., Muthammal R. Full swing gate diffusion input based NCL threshold gates. International Journal of Mobile Computing Devices. 2020; 6(1): 13–20p.
Smart Wearable Posture Trainer and Corrector System using BLE
In this smartphone era, millions of people are suffering from back-pain, text-neck and rounded upper back conditions all around the world. The most common reason behind this is poor posture of the back and neck. Poor posture while sitting and standing is commonly found in students and heavy computer users. To correct their poor postures and to prevent back pains, they need training to maintain good posture. Poor posture may lead to irreversible pathological changes in spine and may even cause paralysis. However, early stage training with device like ours can improve their lifestyle. We found the need of an electronic device in the market, so we are proposing a posture correcting device that is ready to wear as a necklace and smart enough to be controlled via a smartphone. The system has two modes of operation, offline mode and online mode. In offline mode, the alert in case of poor posture is done by the vibrator motor attached to the back of the user. In online mode, device communicates with the smartphone and notifies via a push message or alarm through an android app. This system has small size and low power consumption due to BLE (Bluetooth low energy device) and can be used for long time. We have classified the neck postures and cervical curvatures into seven and four different positions, using our first prototype. It was developed with mercury tilt sensor in its core. Here in this advanced project we use tri-axis accelerometer for more efficient functioning. Finally, we ought to develop an android based application to support and communicate with the user. Providing real-time status monitoring and health tips. Keywords: BLE, tri-axis accelerometer, wearable, android platform, Arduino LilyPad Cite this Article: Sebastian K.I., Abhijith G. Nair, Aljo K. Shaji, Ajith Joseph. Smart Wearable Posture Trainer and Corrector System using BLE. International Journal of Mobile Computing Devices. 2019; 5(2): 38–44p.
Mobile Data Analytics: A Feedback System for Better Utilization of Sensor-based Devices
Mobile devices, including smartphones, are nowadays an essential part of everyday life. They are used worldwide, and across all the demographic groups, they can be utilized for multiple functionalities, including but not limited to communications, such as game playing, social interactions, maps and navigation, leisure, work, and education. With a large on-device sensor base, mobile devices provide a rich source of data. Understanding how these devices are used help us also to increase the knowledge of people’s everyday habits, needs, and rituals. Data collection and analysis can thus be utilized in different recommendation and feedback systems that further increase usage experience of the smart devices. Feedback system computing describes a paradigm where multiple autonomous devices are used together to collect large-scale data. In the case of smartphones, this kind of data can include running and installed applications, different system settings, such as network connection and screen brightness, and various subsystem variables, such as CPU and memory usage. In addition to the autonomous data collection, user questionnaires can be used to provide a wider view to the user community. To understand smart phone usage as a whole, different procedures are needed for cleaning missing and misleading values and preprocessing information from various sets of variables. Analyzing large-scale data sets rising in size to terabytes requires understanding of different Big Data management tools, distributed computing environments, and efficient algorithms to perform suitable data analysis and machine learning tasks. Together, these procedures and methodologies aim to provide actionable feedback, such as recommendations and visualizations, for the benefit of smartphone users, researchers, and application development. This paper provides an approach to a large-scale feedback system mobile analytics. This also describes procedures for cleaning and preprocessing mobile data collected from real-life conditions, such as current system settings and running applications. It shows how interdependencies between different data items are important to consider when analyzing the smartphone system state as a whole. It also provides suitable distributed machine learning and statistical analysis methods for analyzing large-scale mobile data. The algorithms, such as the decision tree-based classification and recommendation system, and information analysis methods presented in this thesis, are implemented in the distributed cloud-computing environment Apache Spark. It provides approaches to generate actionable feedback, such as energy consumption and application recommendations, which can be utilized in the mobile devices themselves or when understanding large crowds of smartphone users. The application areas especially covered in this thesis are smartphone energy consumption analysis in the case of system settings and subsystem variables, trend-based application recommendation system, and analysis of demographic, geographic, and cultural factors in smartphone usage. Keywords: mobile data, sensor-based devices, cryptic values, smartphones, mutual information Cite this Article: Vineet Kumar Sharma, Wilson Jeberson. Mobile Data Analytics: A Feedback System for Better Utilization of Sensor-based Devices. International Journal of Mobile Computing Devices. 2019; 5(2): 31–37p.
The paper presents the structure and the design aspects of a robust flight controller that could be used to control any kind of UAV (unmanned aerial vehicles). It describes the basic fundamentals that operate and manage the UAV and proposes a vision-based stabilization and output tracking control method for a UAV. It aims to understand the control algorithm, loop-time and current parameters of the flight controller. This paper also introduces to a new feature where the minor PID changes could be done in the air over the flight using over the air update. Keywords: flight controller, PID, stabilization, robust, OTAU (over the air update) Cite this Article: Prinkle Talan, Ravishant Vaishnaw. Flight Controller Design for UAV. International Journal of Mobile Computing Devices. 2019; 5(2): 22–30p.
Comparative Study of SPWM and SVPWM of Solar Fed Induction Motor using Push–Pull Converter
Three-phase induction motors are the most useful machines in industry because they are slightly less costly and rugged due to the absence of commutator part. They are the driving work horse for most of the operations such as industries, agriculture, commercial complexes, etc. Nowadays people are chasing alternate energy sources due to the paucity of non-renewable energy sources. Because of which they are moving towards renewable energy sources. A new topology of induction motor drive system integrating a push–pull converter and a three-phase inverter using a single solar photovoltaic panel is proposed. To step-up the solar panel voltage, a DC-DC push–pull topology is employed. To obtain optimum motor performance and to reduce total harmonic distortion of the inverter output waveform, sinusoidal pulse width modulation (SPWM) and space vector pulse width modulation (SVPWM) technique are employed for switching of inverter power circuit and results are compared. Maximum power point tracking algorithm (Perturb & Observe) is used to extract maximum power from photovoltaic panel. Keywords: photovoltaic, DC-DC push–pull converter, maximum power point tracking (MPPT), SPWM, SVPWM, three-phase inverter, induction motor Cite this Article: Lekshmi Devi R, Sandhya P. Comparative Study of SPWM and SVPWM of Solar Fed Induction Motor using Push–Pull Converter. International Journal of Mobile Computing Devices. 2019; 5(2): 10–21p.
Anatomical Study on Grid Connected PV System
The demand of renewable resources has been expanding quickly because of the ecological concerns and need of vitality. Solar photovoltaic energy is presently one of the most well-known and sustainable power source assets on the earth. Inverter is fundamental segment in framework associated PV systems. When PV is connected to grid through inverter, some important terms like total harmonic distortion, galvanic isolation, anti-islanding detection and voltage, frequency ranges for uninterrupted operation must be in specified limits according to standards. This paper reviews state of various components in grid connected photovoltaic system. Keywords: power quality, PV module, capacitors, inverters, Converters, filters, controllers, grid Cite this Article: Anjana A Kumar, Beena P. Thomas, Della Susan Joy, Vineetha P. Joseph, Ansu Thomas. Anatomical Study on Grid-Connected PV System. International Journal of Mobile Computing Devices. 2019; 5(2): 1–9p.
The main objective is to provide awareness to the electricity consumers about their domestic usage of electricity through the GSM. Increasing population and the development of technology leads to the over consumption of the electricity. The objective is to effectively use the electricity for domestic purposes. By developing this energy monitoring system, consumer can be able to understand the consumption of electricity. Since mobile phones is the most common gadgets among the citizens, GSM based intimation of the electricity usage of the customers will be sent to the registered mobile number. The message contains information about the voltage drop across the appliances used, current consumption of the appliances and the total usage of electricity in units will be sent through Global system for mobile. The same idea of energy monitoring can also be implemented in industry for the electricity monitoring purposes. The line voltage and the line current are continuously monitored by using voltage and current sensor respectively, and the energy is calculated using Arduino microcontroller and the values are sent using the GSM module. The responsibility of the individual is to economically use the electricity. Keywords: Energy monitoring, Global system for mobile(GSM), Line voltage, Line current, Arduino Cite this Article: S. Vijayachitra, M. Dharanidharan, V.Aravindan. Energy Monitoring Using GSM. International Journal of Mobile Computing Devices. 2019; 5(1): 8–11p.
Automatic Border Detector with Emergency Control by Interfacing GPS and GSM
The main objective is to provide awareness to the electricity consumers about their domestic usage of electricity through the GSM. Increasing population and the development of technology leads to the over consumption of the electricity. The objective is to effectively use the electricity for domestic purposes. By developing this energy monitoring system, consumer can be able to understand the consumption of electricity. Since mobile phones is the most common gadgets among the citizens, GSM based intimation of the electricity usage of the customers will be sent to the registered mobile number. The message contains information about the voltage drop across the appliances used, current consumption of the appliances and the total usage of electricity in units will be sent through Global system for mobile. The same idea of energy monitoring can also be implemented in industry for the electricity monitoring purposes. The line voltage and the line current are continuously monitored by using voltage and current sensor respectively, and the energy is calculated using Arduino microcontroller and the values are sent using the GSM module. The responsibility of the individual is to economically use the electricity. Keywords: Energy monitoring, Global system for mobile(GSM), Line voltage, Line current, Arduino Cite this Article: K. Arun, R. Gayathri, S. Muthu kumar, A. Harshini, S. Dhivya, Sowbarnica. Automatic border detector with emergency control by interfacing GPS and GSM. International Journal of Mobile Computing Devices. 2019; 5(1): 1–7p.
IoT based Shop Automation Intelligent Trolley
The Internet of Things (IOT) is modifying human lifestyles by linking day-to-day objects all together. Like, a Super Market contains all items together, establishing a smart shopping structure. In such an IOT structure, an low-priced RFID tag can be connected to each item which when kept into a smart shopping cart, can automatically read by a cart furnished with an RFID reader. Furthermore, this smart cart has robotic feature that changes as per the customer’s command. And billing can be done from the same shopping cart, stopping users from long queue at checkout point. Moreover, Smart shelving can add an extra feature into the system, prepared with RFID readers, and can observe stocks and will also update the central server. In addition, Inventory management becomes much easier which is another advantage of this system, as all products can be technically read by an RFID reader and specify whether the products have valid expiry date or not. Each and every information will be updated in the IOT website. To authenticate the practicability of such systems, we recognize the design necessities of a smart shopping system, then build a prototype model to test functionality and develop a safe communication decorum to make the system efficient and markable. Keywords: Arduino, RFID Reader, RFID Scanner. Cite this Article: M. Balamurugan, P. L. Alagappan, S. Giriprasath, S. Gokulnath, S. Santhosh. IoT based Shop Automation Intelligent Trolley. International Journal of Mobile Computing Devices. 2019; 5(1): 23–28p.
IoT based Crop Quality Improvement in Agriculture using Drone
Drones are described as Unmanned Aerial Vehicles (UAVs). In other words, drones are defined as flying devices that are freely planned or remotely measured, either by a remote or a ground position, and are considered as Networked Robotic Machineries. Inappropriately, drones haven’t had a good impression on agronomic observations. A lot is up-to-the-minute on the topic of drone and related applications in cultivation and agriculture. The Internet of Things (IoTs) in agriculture can provide the manufacture process and can gauge from minor to large growers. In this project, we have considered several zones of agriculture and the application of IoT in those selected parts. For ages now, drone promoters have named accurate crop administration by using GPS and big data to raise the crop yield whereas determining for water supply and food calamities. Keywords: Internet of Things; Support Vector Machine; Unmanned Aerial Vehicle (UAV); RGB-D sensor; Agriculture. Cite this Article: V. Gousalya, B. Mariganesh, S. Naveen Kumar, K. Dinesh, K. Sivaraj. IoT based Crop Quality Improvement in Agriculture using Drone. International Journal of Mobile Computing Devices. 2019; 5(1): 17–22p.
Factory farm cloud is basically a cloud for farmers and others involved in agriculture business. It would be a technology that will use Cloud computing along with Big Data and Data Mining. The main feature here would be, that we will be providing consultancy to farmers and as well as a work force to them. Dairy related doubts and consultancy will also be provided. We aim to provide a platform for agriculture related Research. A backend that will be maintained will have records about the quality of soil, weather, crop related data, a growth monitor and agriculture related expert advice will also be given. Keywords—Cloud Computing; Factory Farm; Agriculture Cite this Article: Hitesh Jha, Anuj Khaitan. Factory Farm Cloud. International Journal of Mobile Computing Devices. 2019; 5(1): 12–16p.