Papers by Darshan Prajapati
SPAST Abstracts, Sep 15, 2021
Multilevel inverters offer several advantages compared to the conventional 3-phase bridge inverte... more Multilevel inverters offer several advantages compared to the conventional 3-phase bridge inverter in terms of lower dv/dt stresses, lower electromagnetic compatibility, smaller rating and better output features. This paper deals with study of Three Phase Two Level, Three Level and Five Level Voltage Source Inverter (VSI). The Three Level and Five Level are realized by Neutral point clamped (NPC) or Diode clamped (DC) inverter using Sinusoidal pulse width modulation (SPWM) technique. Similarly three phase VSI (two level) is also simulated using SPWM technique. SPWM technique is one of the most popular PWM techniques. Now-a-days harmonic reduction using SPWM is most popularly used in industries for a Variable Frequency Drives (VFDs). All the circuits are implemented using MATLAB software and their outputs are shown in figures step by step. Finally, this paper compares all the three inverters i.e., Two Level, Three Level and Five Level based on the total harmonic distortion of the out...
Web mining is the application of data mining on web data and web usage mining is an important com... more Web mining is the application of data mining on web data and web usage mining is an important component of web mining. The goal of web usage mining is to understand the behavior of web site users through the process of data mining of web access data. Knowledge obtained from web usage mining can be used to enhance web design, introduce personalization service and facilitate more effective browsing. Webpage Recommender systems are intelligent systems which make suggestions about user’s next webpage. Many of the largest Web sites are already using recommender systems to help their customers find a next webpage. Recommender system has become an important part of any entertainment or E-Commerce website. Various personal services in business play important roles in the success of current marketing field. This paper presents a review of literature containing latest works done in this field.
International Journal of Advance Research and Innovative Ideas in Education, 2016
The World Wide Web store, share, and distribute information in the large scale. There is large nu... more The World Wide Web store, share, and distribute information in the large scale. There is large number of internet users on the web. They are facing many problems like information overload due to the significant and rapid growth in the amount of information and the number of users. As a result, how to provide web users with more exactly needed information is becoming a critical issue in web applications. Web mining extracts interesting pattern or knowledge from web data. A Recommender system is one of the best web usage mining Application which reduces the difficulties faced by the users to meet their requirements. It recommends the pages of interest to the user. With the rapid development of biclustering, more researchers have applied to the web usage data it automatically captures the hidden browsing patterns from it in the form of biclusters. In this study, we propose a novel biclustering algorithm based on genetic algorithms (GAs) to effectively segment the web usage data. In thi...
Journal of emerging technologies and innovative research, 2018
The paper is based on the tests carried out for the evaluation of the strength parameters and the... more The paper is based on the tests carried out for the evaluation of the strength parameters and the liquefaction potential of the soil using the SCPT (Static Cone Penetration Test). The approach combines with a literature review of the various similar carried out analysis of the soil to know the venture of failure and classify if the soil is succumbed to liquefaction or not as well as the detailed description of the instrument used. Determining the area whether it is or it isn’t prone to liquefaction one can have an insight before utilizing it for having a safer approach towards the same. This in return provides us invaluable information of the behavior of the soil and gives us a proper glance of the usability factors for the same as well as brings about the precautionary measures to be taken. We get a detailed layer by layer understanding of the soil characterization which is the most important factor before heading towards any construction above the surface of the same and hence the...
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Papers by Darshan Prajapati