KCG College of Technology

About: KCG College of Technology is a based out in . It is known for research contribution in the topics: Computer science & The Internet. The organization has 427 authors who have published 381 publications receiving 2193 citations.

Water Quality Improvements in Soil Aquifer Treatment (SAT) Simulated Soil Columns

Abstract: Artificial recharge of Aquifers with treated wastewater is one of the most promising techniques for its reuse. Usually laboratory and pilot scale field studies are conducted for investigating the feasibility of wastewater recharge for any aquifer. The addition of sand to the local soil can improve the performance of the Soil Aquifer Treatment (SAT) process. Thus, a laboratory study was conducted to investigate the effect of sand amendment with local Sandy Clay Loam (SCL) texture soil collected from Anna University Sewage Treatment Plant (STP), Chennai, India. Four 35 cm long PVC soil columns were fabricated and were filled with 5 % (R5), 10 % (R10), 15 % (R15) and 20 % (R20) sand amended soil. The experiments were run simultaneously for a period of ten cycles with 3 days wet/4 days dry cycles. Water samples were collected at the outlet of the columns and analysed for TDS, ammonia, nitrite and nitrates. The removal of ammonia was through nitrification process which was found to be a dominant removal mechanism of nitrogen. When reduction performance achieved with different sand amendment columns were compared, it could be seen that R10 column yielded with least nitrate value of 0.69 and 1.57 mg/l after 1st and 3rd wetting day.

Experimental and Computational Fluid Dynamics (CFD) Study of Glazed Three Dimensional PV/T Solar Panel with Air Cooling

Abstract: The thermal performances of photovoltaic thermal (PV/T) flat plate panel were determined under 500–1000 W/m2 solar radiation levels. In the present work, fluid flow analysis and temperature distribution on solar panel has been carried out by experimental method and computational fluid dynamic (CFD) technique. The experiments have been carried out on clear days during the month April 2014. The geometric model for CFD analysis is generated using Solidworks. Mesh generation is accomplished by ANSYS Meshing Software. Physics setup, computation and post processing are accomplished by ANSYS FLUENT. The experimentally measured temperatures are compared to the temperatures determined by the CFD model and found to be in good agreement. It is also found that the difference between the experimental and CFD simulated outlet temperature differ only by less than 3.5°C.

Dynamic question answering system based on ontology

Abstract: The Question Answering (QA) system is playing a significant role in search engine and information extraction principle. This investigation of research work has performed with an Interface which incorporates the different modules of ontology assistance, template assistance, and user modeling techniques which function as the supporter between the client user and system to deal with the user problems. The latest features which formulate to increase system performance are ontology assisted query template, natural language query mode and keyword based query mode. The experimentation result implies that 85% queries have been accurately identified by the system.

Investigating dengue outbreak in Tamil Nadu, India

Abstract: Dengue has been indigenous to India in last decade. There was a major outbreak in the state of Tamil Nadu in 2017. Here, we investigate the dengue outbreak in parts of Tamil Nadu, India. Dengue case data were obtained from the hospital records in the Chennai district of Tamil Nadu. The data were analyzed using statistical approaches such as correlation and regression. The result shows that the dengue outbreak in Tamil Nadu during 2017 was due to the population, water stagnation, and sewage, whereas the human activity weren’t the cause of the dengue outbreak which caused 65 deaths. Male constitutes 54.71% whereas female accounted for 45.29% of dengue incidence in Tamil Nadu, majority deaths were children aged less than 10 years due to the outbreak of Dengue Hemorrhagic Fever (DHF). This investigation was evaluated using mathematical regressions, Geographically Weighted Regression (GWR) regression outperformed Ordinary Least Square (OLS) regression model in detecting dengue incidence. This investigation can be strengthened by implementing a surveillance system in parts of Tamil Nadu before an outbreak.

Naive Bayes Algorithm for Sentiment Analysis on Twitter

Abstract: To analyze the tweets by various users of Twitter across the globe and provide a detailed analysis of the positive and negative discussion of the topic under a given heading. This is done using sentiment analysis algorithm which applied in the Python environment, which is also certainly used for statistical analysis of the data and a web user interface has been developed for the overall output of the data. Using API Access, the Access Token is retrieved. Then the sentiment algorithm is applied step by step to gather the positive and negative in the tweets of applied section and the percentage is reported.