Design and Fabrication of H Darrieous VAWT

In this thesis, design calculation and fabrication of H Darrieus VAWT are carried out. The purpose of this thesis is to produce power of electricity. H Darrieus wind turbine is a type of vertical axis wind turbine. This wind turbine consists of three straight blades, technically an airfoil which is connected to the radial arm and rotating main shaft. In this thesis, the components required for this wind turbine like airfoil, main shaft and bearing are properly designed. The power calculation with respect to the wind velocity, swept area and number of blades are included. The yearly average wind velocity is 4 m s and number of blade is three. The diameter of rotor is 0.915 m and height of rotor is 1.067 m. As a result, the turbine power is 14.16 W. The NACA 0015 airfoil of NACA series is chosen. 100000 in Reynolds number, 37.5 in the ratio of lift and drag coefficient and 6° in angle of attack are included in this airfoil. The rotor solidity is 60 percentages, the chord length of airfoil is 0.2 m and maximum thickness of airfoil is 30 percentages of chord length. Finally, the components of H Darrieus vertical axis wind turbine are fabricated with zinc sheet, commercial steel, cast iron, and all parts are assembled together after manufacturing of these components.

BY Hnin Yu Yu Kyaw | Ei Cho Cho Theik | Khaing Zar Nyunt "Design and Fabrication of H-Darrieous VAWT"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-4 , June 2019,

URL: https://www.ijtsrd.com/papers/ijtsrd25159.pdf

Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/25159/design-and-fabrication-of-h-darrieous-vawt/hnin-yu-yu-kyaw

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Graphical Password Authentication using image Segmentation for Web Based Applications

One of the most important topics in information security today is user authentication. User authentication is a fundamental component in most computer security contexts. It provides the basis for access control and user accountability. While there are various types of user authentication systems, alphanumeric passwords are the most common type of user authentication. They are versatile and easy to implement and use. However, it can either be long and secure or short and hard to remember. A graphical based password is one promising alternatives of textual passwords. According to human psychology, humans are able to remember pictures easily. In this paper, graphical passwords have been designed to try to make password more memorable and easier for people to use, and it is less vulnerable to brute force attacks than a text based password. The aim of the system is to implement a strong security. The proposed system segments the image like a grid, which has a maximum four fragments. Then, each segment of the image is dragged in a particular sequence onto an empty grid of size 6x6 and placed on a particular segment of the empty grid, to form the user' password. When the user logs into the system, the user needs to drag each segment of the image onto the same empty grid of size 6x6 in the correct sequence and position of the segments that user had specified during registration. 

BY Maw Maw Naing | Ohnmar Win "Graphical Password Authentication using image Segmentation for Web Based Applications"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-4 , June 2019,

URL: https://www.ijtsrd.com/papers/ijtsrd25184.pdf

Paper URL: https://www.ijtsrd.com/engineering/electronics-and-communication-engineering/25184/graphical-password-authentication-using-image-segmentation-for-web-based-applications/maw-maw-naing

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Suggestion Generation for Specific Erroneous Part in a Sentence using Deep Learning

Natural Language Processing NLP is the one of the major filed of Natural Language Generation NLG . NLG can generate natural language from a machine representation. Generating suggestions for a sentence especially for Indian languages is much difficult. One of the major reason is that it is morphologically rich and the format is just reverse of English language. By using deep learning approach with the help of Long Short Term Memory LSTM layers we can generate a possible set of solutions for erroneous part in a sentence. To effectively generate a bunch of sentences having equivalent meaning as the original sentence using Deep Learning DL approach is to train a model on this task, e.g. we need thousands of examples of inputs and outputs with which to train a model.

BY Veena S Nair | Amina Beevi A "Suggestion Generation for Specific Erroneous Part in a Sentence using Deep Learning"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-4 , June 2019,

URL: https://www.ijtsrd.com/papers/ijtsrd23842.pdf

Paper URL: https://www.ijtsrd.com/engineering/computer-engineering/23842/suggestion-generation-for-specific-erroneous-part-in-a-sentence-using-deep-learning/veena-s-nair

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