Modeling and Simulation of Grid Connected PV System

In today’s scenario, renewable energy based applications are increasing due to the global warming issue and increase in the prices of fossil fuels. Renewable energy sources RES like sun, biomass, air, water etc. are environmental friendly and have plenty of potential that can be utilized in power generation. However, RES have a problem of intermittent in nature that can be conquered presently by combining RES known as hybrid system that can provide the reliable, economic and environment friendly electricity. The increased penetration of grid connected renewable energy sources has an impact on the grid power quality in particular weak grids. Voltage fluctuation, frequency fluctuation and harmonics are major power quality issues. 

by Muhammad Shahid | MD Ejaz Ali "Modeling and Simulation of Grid Connected PV System" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-5 , August 2021, 

URL: https://www.ijtsrd.com/papers/ijtsrd43761.pdf 

Paper URL: https://www.ijtsrd.com/engineering/electrical-engineering/43761/modeling-and-simulation-of-grid-connected-pv-system/muhammad-shahid

internationaljournalofscience, openaccessjournalofscience, ugcapprovedjournalsforscience 

Techno Economic Analysis of HVDC Links for Inter State Interconnection

The design of an interregional high voltage transmission system in the US is a revolutionary technological concept that will likely play a significant role in the planning and operation of future electric power systems. This paper presents techno economics analysis of HVDC link for interstate inter connected system. there are two type transmission system used for large power supply to long distance transmission 1 HVDC high voltage dc transmission system 2 HVAC high voltage ac transmission system in which HVDC is preferable due less power loss in transmissions but it need high installing charge at the starting moment. It need two type of installation block 1 rectifier block at the sending end 2 inverter block at receiving end these both block deal with high reactive VAR. In this paper we are going to analyze technology of HVDC installation, there control, how HVDC link deal with reactive VAR reactive power compensation , how its economical if it need high installing charge .In this paper we are using 2500 MVA, 230 volt, 60 grid after rectifying power transmitted to 100 km by 100 km cable then it invert at receiving end for distribution. Here we are calculating reactive power demand for both inverter and converter both, we comparing HVDC transmutation system with HVAC transmission system economically we also coverings the environmental advantages for HVDC system. My focus in this paper is, how to minimize installing charge of HVDC link, how to increase power carrying capacity of HVDC system and how to make it environment friendly.

by Muhammad Shahid | MD Asif "Techno-Economic Analysis of HVDC Links for Inter-State Interconnection" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-5 , August 2021, 

URL: https://www.ijtsrd.com/papers/ijtsrd43760.pdf 

Paper URL: https://www.ijtsrd.com/engineering/electrical-engineering/43760/technoeconomic-analysis-of-hvdc-links-for-interstate-interconnection/muhammad-shahid

ugcapprovedmanagementjournal, openaccessjournalofmanagement, paperpublicationinmanagement

A Survey on Content Based Image Retrieval System

The increasing increase of picture databases in practically every industry, including medical science, multimedia, geographic information systems, photography, journalism, and so on, necessitates the development of an effective and efficient approach for image processing. The approach of content based image retrieval is used to recover images based on their content, such as texture, colour, shape, and spatial layout. However, because to the semantic mismatch between the users high level notions and the images low level properties, retrieving the image is extremely challenging. Many concepts were presented in effort to close this gap. Furthermore, images can be stored and extracted depending on a variety of properties, one of which being texture. Content based Image Retrieval has become a popular study area as a result of the growth of video and image data in digital form. Digital data, such as criminal photographs, fingerprints, and scene photographs, has been widely used in forensic sciences. As a result, arranging such enormous amounts of visual data, such as how to quickly find an interesting image, becomes a major difficulty. There is a pressing need to develop an effective method for locating photographs. An image must be represented with particular features in order to be found. Three significant visual qualities of an image are colour, texture, and shape. The search for images utilising colour, texture, and shape attributes has gotten a lot of press. 

Preeti Sondhi | Umar Bashir "A Survey on Content Based Image Retrieval System" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-5 , August 2021, 

URL: https://www.ijtsrd.com/papers/ijtsrd43777.pdf 

Paper URL: https://www.ijtsrd.com/engineering/computer-engineering/43777/a-survey-on-content-based-image-retrieval-system/preeti-sondhi

internationaljournalsofcomputerscience, callforpapercomputerscience, ugcapprovedjournalsforcomputerscience 

Survey on Digital Video Watermarking Techniques, Attacks and Applications

Digital watermarking is a method of identifying the rightful owner of digital data by embedding a known message in the data. These methods can be applied to a wide range of digital material, including still images, videos, and music. To safeguard the copyright of digital media, digital watermarking techniques have been created. This study seeks to provide a comprehensive overview and background on the definition, idea, and major accomplishments in the subject of watermarking. It starts with a broad review of digital watermarking, then moves on to assaults, applications, and eventually a detailed examination of existing and new watermarking systems. We classify the techniques according various categories such as host signal, perceptivity, and robustness, and watermark type, necessary data for extraction, processing domain, and applications. 

Preeti Sondhi | Soufia Gull "Survey on Digital Video Watermarking Techniques, Attacks and Applications" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-5 , August 2021, 

URL: https://www.ijtsrd.com/papers/ijtsrd43776.pdf 

Paper URL: https://www.ijtsrd.com/engineering/computer-engineering/43776/survey-on-digital-video-watermarking-techniques-attacks-and-applications/preeti-sondhi

peerreviewedjournals, reviewpapers, callforpaperhealthscience

Experimental Study on Rubberized Concrete

Modifications of construction materials have an important bearing on the building sector. Several attempts have been therefore made in the building material industry to put to use waste material products, e.g., worn out tyres, into useful and cost effective items. Success in this regard will contribute to the reduction of waste material dumping problems by utilizing the waste materials as raw material for other products. The present proposal involves a comprehensive laboratory study for the newer application of this waste material in the preparation of fibrous concrete. The primary objective of investigation is to study the strength behavior i.e. compressive strength, impact resistance of rubberized concrete with rubber chips. Volume variation of rubber chips with replacement to course aggregate. The proposed work is aimed to study the effect of volume of rubber chips on the compressive strength. 

by Chetak A. Waghmare | Dr. P. P. Saklecha | Prof. M. M. Lohe "Experimental Study on Rubberized Concrete" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-4 , June 2021, 

URL: https://www.ijtsrd.compapers/ijtsrd43718.pdf 

Paper URL: https://www.ijtsrd.comengineering/structural-engineering/43718/experimental-study-on-rubberized-concrete/chetak-a-waghmare

callforpaperlifesciences, lifesciencesjournal, researchpapers

Frontal Plow for Tillage of Sloping Fields under Uzbek Conditions

The necessity of development of anti erosion moisture saving technical means of tillage in the conditions of Uzbekistan is shown. The devices and principle of work of frontal plough for tillage of sloping fields, and also results of its tests in economic conditions are resulted. It is established, that development and introduction of the frontal plough contributing to soil protection from water erosion and improvement of moisture accumulation in the root inhabited soil layer is promising. 

by Buranova Sh. U. | Astanova M. M. | Ganiyeva Sh. A "Frontal Plow for Tillage of Sloping Fields under Uzbek Conditions" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-4 , June 2021, 

URL: https://www.ijtsrd.compapers/ijtsrd43618.pdf 

Paper URL: https://www.ijtsrd.comengineering/mechanical-engineering/43618/frontal-plow-for-tillage-of-sloping-fields-under-uzbek-conditions/buranova-sh-u

callforpapereconomics, economicsjournal

Evolution of Android Operating System and it’s Versions

Android is a software stack for mobile devices that includes an operating system, middleware and key applications. It can be considered as a software platform as well as an operating system for mobile devices based on the Linux operating system and currently developed by Google. It is designed primarily for touch screens mobile devices such as smartphones and tablet computers. One of the most widely used mobile OS these days is android. It is free and open source software its source code is known as Android Open Source Project AOSP , which is primarily licensed under the Apache License. This Paper Contains android architecture consists of key applications, Application framework, Native libraries, Android runtime, DVM, Linux Kernal., Many versions of Android Operating System are KitKat, JellyBean, Honeycomb, Froyo etc… Advantages and Disadvantages of Android and also the conclusion. 

by Aishwarya Gujar | Prof. Pratibha Adkar "Evolution of Android Operating System and it’s Versions" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-4 , June 2021, 

URL: https://www.ijtsrd.compapers/ijtsrd42519.pdf 

Paper URL: https://www.ijtsrd.comengineering/computer-engineering/42519/evolution-of-android-operating-system-and-it’s-versions/aishwarya-gujar

callforpaperlanguages, languagesjournal, bestjournal