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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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

image retrieval ,feature extraction

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

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

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Creative Commons Attribution 4.0 and The Open Definition

 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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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Virtual Reality (VR), Virtual tour, RVCE.

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Creative Commons Attribution 4.0 and The Open Definition

 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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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

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 Keywords

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

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

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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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

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

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

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Creative Commons Attribution 4.0 and The Open Definition

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

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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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Metro, Roof structure, Seismic, Wind, ETABS

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Creative Commons Attribution 4.0 and The Open Definition

 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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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

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

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Creative Commons Attribution 4.0 and The Open Definition