Volume 9 | Issue 6

 Abstract

Modern power electronic converters must possess features like reduced size, high power density, high efficiency etc. By employing soft switching cells to existing converters, performance can be improved to a great extent. Soft switching converters aim to reduce switching loss, enabling a converter to operate with very high frequency. This facilitates reduction in size and volume of the converter that improves power density and efficiency of the converter. This paper reviews detailed study on different soft switching of DC-DC Buck converters to improve converter performance. The detailed operation of few soft switched buck converter topologies along with strengths and weaknesses have been discussed thoroughly.

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 Keywords

Pulse Width Modulation (PWM), Zero Voltage Switching (ZVS), Zero Current Switching (ZCS), Snubber circuit, Zero Current Transition (ZCT), Soft Switching.

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

Multimedia content analysis is applied in different real-world computer vision applications, and digital images constitute a major part of multimedia data. In last few years, the complexity of multimedia contents, especially the images, has grown exponentially, and on daily basis, more than millions of images are uploaded at different archives such as Twitter, Facebook, and Instagram. To search for a relevant image from an archive is a challenging research problem for computer vision research community. The content based image retrieval aims to find the similar images from a large scale dataset against a query image. Generally, the similarity between the representative features of the query image and dataset images is used to rank the images for retrieval. In early days, various hand designed feature descriptors have been investigated based on the visual cues such as color, texture, shape, etc. that represent the images. This paper attempts to provide a comprehensive survey of the techniques developed content based image retrieval. This paper also analyzed the main aspects of various image retrieval and image representation models from low-level feature extraction to recent semantic deep-learning approaches. The important concepts and major research studies based on CBIR and image representation are discussed in detail, and future research directions are concluded to inspire further research in this area. Keywords: Content Based Image Retrieval, Semantic Gap, Machine Learning, Deep Learning,

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 Keywords

image retrieval ,feature extraction

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 Abstract

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 Keywords

Driver, Detect, Frame, Face Detection, Drowsiness, Driver Fatigue, Image processing, OpenCV, Haarcascade Files.

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 Abstract

In past few years virtual reality has emerged to become the centre of attraction for people. Virtual reality may change the way during which many of the common things are getting used today like it's already changed the gaming world by introducing virtual games. It provides an environment that's somehow look alike that it's real-world or we will say computer game provides a simulated real-world environment to its users. It is very popular technology in the field of gaming, but in this project, we will focus on how virtual reality can be beneficial for campus touring of MCA Department-RVCE in particular, it can bring the feeling of reality and immersion to the user as if they are traveling in actual, but in reality, they are only experiencing the tour through VR headset. A headset itself helps to provide the 3D look, it can help people to have exhilarating experience without visiting that place in real and it can greatly influence the visitors due to its interactive nature.The sequence of the work will be carried out by stitching the normal images to get the panoramic images using Insta360 software and importing the panoramic images to the unity assets,then Importing the several packages required for Virtual reality to the unity assets and finally coding the required functions using C# language.The main aim of the project is to mimic real world by computer generated environment and engage all the sense of people using very powerful and compelling technology that is Virtual Reality. We hope that users can explore the infrastructure and facilities provided in the department of MCA RVCE with the user friendly interface which is also the expected improvement to an existing system.

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 Keywords

Virtual Reality (VR), Virtual tour, RVCE.

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 Abstract

Energy has playing an important role in human life and economic development. World total annual energy consumption is increased. While fossil fuel (coal, oil, natural gas) provides three quarter of total. At current energy consumption rate proven coal reserve should last for about 200 years, Oil for approximately 40 years and natural gas for annual 60 years with the contradiction between rapid development. Now a days Non-conventional Power generation is one of the fastest growing sectors. So we select the solar wind hybrid power generation. The sun is the ultimate source of limitless solar energy in the form of light and heat. In a solar power generation system solar panel absorb sunrays and convert it into DC current, that will be used to charge battery. Also wind energy is limitless from the nature. Wind turbine rotate due to the force of wind and its rotor connected with generator also rotate and give AC current. This project involves the solar wind hybrid power generation that will be used to generate electricity. This system will provide the basic electricity requirement for the house. Solar power and wind energy are free making this system viable long-term solution for electrification. Purpose of investment in solar wind hybrid power generation project is to enter in development of green energy technology, which is the only ultimate source of energy for future generation.

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 Keywords

Solar energy, wind energy, Hybrid Energy, DC current, PWM charge controller, Vertical axis wind turbine (VAWT), Electricity

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 Abstract

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Suicides, Suicidal Detection, Machine Learning, Earlier detection, Tweets

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Differences on brain antioxidant profile together with accumulation of heavy metals have been evaluated in 30 day old rats of Wistar strain, subjected to a trimetallic (Cd- 5.12 mg /Kg BW ,Cr-7.06 mg / Kg BW ,Ni- 7.06 mg /Kg BW) mixture through drinking water for 30 days .Protective effect of melatonin (10mg /Kg BW ) and alpha lipoic acid (ALA) ( 100 mg /Kg BW) either singly or in combination have also been tested by co- administration with metals either in the morning or evening hours. Toxicity was assessed by quantitative assay of non-enzymic (GSH, vitamin C, vitamin E ) and enzymic (SOD, catalase, glutathione peroxidase) antioxidants and tissue metal content. Increased lipid peroxidation, the significant depletion in antioxidants and accumulation of metals in the brain tissue were the noticeable observations. These effects have been related with substantial generation of free radicals induced by trimetallic combination. Treatment with protectants could successfully prevent the above metal induced alterations and the potency of melatonin in this respect was better than ALA. Further evening administrations of melatonin in combination was more effective than morning dosage. Overall it is concluded that a trimetallic exposure can result in significant oxidative stress in the neural tissue and that melatonin in combination with ALA has chronotherapeutic potential against metal induced oxidative stress.

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Heavy metals, melatonin, chronotherapeutic, alpha lipoic acid, oxidative stress, brain

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 Abstract

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Fast moving word adopted Metro train as an important means of transportation and global development. Metro in major cities in India are now become a major public transportation media as they are fast and feasible. So, metro stations also be designed and build as modern and aesthetic structures. Roof structure plays an important role in protection and beautifying the structure. This study employed the roof structure of a metro station, as an important key element to perform seismic and wind analysis using ETABS software.

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Metro, Roof structure, Seismic, Wind, ETABS

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 Abstract

Inclusive learning environment can be facilitated through differentiated instructions as one of the techniques. This is a method, where the teacher tailors the curriculum according to the needs of the class focusing on the quality of teaching and learning. It can also be helpful for general education teachers to engage their class and teach the students up to their zone of proximal development. It is a method to implement a variety of strategies that involve teaching the same curriculum to students using a variety of instructions, or the teacher may differentiate the content, process, and product of the curriculum based on the readiness of the learner, level of difficulty, environment and learning patterns. We must understand that the concept of differentiated instruction is developed with the base in learner-centred educational theories like Thorndike's readiness, Gardener's multiple intelligence theory and varied learning style, Vygotsky's zone of proximal development. This article aims to explore differentiated instructions that would maximize learning among students and engage diverse learners in class and to understand the above-mentioned theoretical basis of differentiated instructions. This would help us to perceive the need of implementing differentiated instructions in everyday teaching and why is it one of the most effective technique to cater inclusive education.

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Inclusive Education, Differentiated Instructions, Learning Styles, Teaching Learning Strategies, Education Theories, teaching techniques, teaching instructions

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 Abstract

A welding transformer has two circuits one is primary and other is secondary circuit. These two winding have no electrical connections but magnetically they are coupled together. The main function of transformer is to change high voltages low amperage ac power for welding.

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 Keywords

Power, Holder, Arc

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Android is a portable working framework dependent on an adjusted adaptation of the Linux piece and other open-source programming, planned basically for touchscreen. It is created by Google and later the OHA (Open Handset Alliance). Java language is predominantly used to compose the android code despite the fact that different languages can be used. The objective of android venture is to make a fruitful genuine item that improves the portable experience for end clients. The app developed in the android are very efficient and are very user friendly which can be used in almost every field of society. Therefore, they can also be used in solving modern day farming problems. Notwithstanding the enormous scope motorization of agribusiness in certain pieces of the nation, the majority of the rural activities in bigger parts are carried on by human hand utilizing basic and customary instruments and executes like wooden furrow, sickle, and so forth. Almost no utilization of machines is made in ploughing, sowing, irrigating and pruning, weeding, reaping sifting and moving the yields. This is uncommonly the situation with little and minor farmers. It brings about enormous wastage of human work and in low yields per capita workforce. Agricultural promoting still keeps on being in a terrible shape in rural India. Without sound showcasing offices, he ranchers need to rely on neighborhood merchants and mediators for the removal of their homestead produce which is sold at discard cost. So to give the information about these procedures, and about the new devices we will make an application. Also, from this application no one but individuals can purchase the cultivating items from the rancher straightforwardly so the job of center man will be done.

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 Keywords

Android,App

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 Abstract

The internship program is a resourcefulness which bridges the gap between the knowledge and its application through a series of interventions which enables the learners to obtain awareness and experience to the business. The program extends for a period of 10 weeks which provides a good opportunity to experience the practicality in terms of subjects studied. It also gives practical exposures. H & R Johnson (India) a division of prism cement limited manufacturers of exclusive brand of white body wall and floor tiles and fully vitrified tiles, is the trailblazer in the tile industry with a dominant presence all over the globe for over 100 years, the brand has gained the trust of over four generations. H & R Johnson (India) a private limited company was established in 1958 which currently owns and operates tile manufacturing plants at Pen (Maharashtra), Kunigal (Karnataka), Karaikal (Pondicherry),Dewas (Madhya Pradesh),Vijayawada (Andhra Pradesh). H & R Johnson (India) Kunigal plant came into existence in the year 1989 and commercial production was started in the year 1990. It has modernized plant with new technology equipments.

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A Study “ON EMPLOYEE ENGAGEMENT ACTIVITIES AT H & R JOHNSON (INDIA) A DIVISION OF PRISM CEMENTS

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 Abstract

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Lung infection detection, CT scan, Machine Learning, Respiration

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Now-a-days most of the applications are requires the effective security system for managing the transaction details and other information. Other than the CCTV security process, biometric systems are utilized in several application to monitor the people activities and helps to authenticate the person. Even though, the biometric systems are failing to authenticate the right person some times which reduces the efficiency of authentication system. For achieve this goal, in this paper dorsal vein biometric features are used to authenticate the user information. Initially, dorsal vein images are collected from different person, which are processed by applying the median filter that eliminates the noise from image. After that vein regions are located with the help of the deep learning approach which recognize the vein information using different layers. From the extracted vein region, various statistical features are derived that are processed by the intelligent classifier called ant colony optimized compositional neural network which train the features and authenticate the user information effectively. Then the efficiency of the system is evaluated using experimental results such as FAR, FRR and ERR.

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 Keywords

Biometrics system, authentication, Dorsal vein, Median filter, Deep learning approach, Intelligent machine learning technique.

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 Abstract

Phyllanthus amarus has long been used as a medicinal herb. This plant has been used to cure a variety of severe ailments traditionally, and it has been scientifically proven to be safe and effective against a variety of ailments. The aim of this research was to see whether the separated alkaloid rich fraction from P.amarus has any hepatoprotective property. We successfully isolated the alkaloid fraction from this plant and tested it on male albino rats suffering with D-galactosamine induced hepatitis. We looked at endogenous antioxidant enzymes in the liver tissue to see whether alkaloid fraction has hepatoprotective activity. The results showed that antioxidant enzymes such SOD, CAT, GR, GPx, and GSH levels were considerably higher in the alkaloid rich fraction that treated to hepatitis group, but they were lower in the hepatitis alone rat group. In addition, in the hepatitis group, however, GST enzyme activity and lipid peroxidation in the form of MDA were significantly higher, but these values were also considerably decreased in the alkaloid rich fraction treatment of hepatitis rats. In conclusion, the alkaloid-rich fraction separated from P.amarus displays hepatoprotective effects in the liver via boosting endogenous antioxidant enzymes. In future, the mechanism of action of the alkaloid fraction of P.amarus must be determined, as well as the isolation of individual alkaloid compounds.

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Phyllanthus amarus, Antioxidant enzymes, hepatoprotective, alkaloid-rich fraction, D-galactosamine

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 Abstract

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Covid-19, CT Scan, Machine Learning, Medical Images

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 Abstract

Renewable energy sources have become a popular alternative electrical energy source where power generation in conventional ways is not practical. In the last few years the photovoltaic and wind power generation have been increased significantly. In this study, we proposed a hybrid energy system which combines both solar panel and wind turbine generator as an alternative for conventional source of electrical energy like thermal and hydro power generation. A simple control technique which is also cost effective has been proposed to track the operating point at which maximum power can be coerced from the PV system and wind turbine generator system under continuously changing environmental conditions. The entire hybrid system is described given along with comprehensive simulation results that discover the feasibility of the system. The model is intended to be used as an optimization and design tool for such hybrid systems applied to organic constructions. After an error analysis it was determined that this model predicted quite interesting results compared to the experimental data under various conditions. It is important to indicate that this analysis has been carried out so that in future, these power generation systems can be exploited and applied more efficiently in areas far from the public electricity grid.

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 Keywords

Renewable energy, hybrid system, and photovoltaic

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The intent of this paper is to establish a model to classify outdoor images to different weather classes and then using this classification as basis of many actions that can be provided to driverless cars. While performing the literature survey about field related to weather prediction we found out that the best results for weather classification are obtained while using the CNN models. This paper proposes a method of implementing convolutional neural networks to get the desired result of classifying separate weather conditions into four classes, namely foggy, rainy, sunny and snowy. And according to the weather condition predicted, the project will provide the necessary actions that need to be taken by the driverless cars. Convolutional neural networks (CNNs) are widely accepted and acknowledged in the fields of image analysis, image recognition, video recognition, face recognition, image classification and activity detection. CNNs have images as their input; process those images; assign adaptive weights and biases to many features of the image; and then classify them into various categories.

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 Keywords

Convolutional neural networks, sequential model, model layers, image classification

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 Abstract

As the demand of energy is increasing day by day, so the ultimate solution to deal with these sorts of problems is just to implement the renewable sources of energy Humans are using the renewable energy which are solar, wind etc. but we still could not satisfy our power needs, because of that we have to generate electricity through each and every possible Ways.The objective of this work is to produce power through footsteps as a source of renewable energy that we can obtained while walking or standing on to the certain arrangements like footpaths, stairs, plate forms and these systems can be install specially in the more populated areas. In this project the force energy is produced by human foot step and force energy is converted into mechanical energy by the rack and pinion mechanism. electricity is produced by DC generator. We are supposed to study existing methods of foot step power generation that are rack and pinion arrangement and piezoelectric crystals and supposed to modified the existing system.

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 Keywords

Power Generator, Piezoelectric Device, Foot Step Electronics Tools

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