Friday, March 3, 2017

New M.Tech. Thesis Submitted from Civil


There has been a continuous decrease in the availability of fresh water resources for daily routine purposes nowadays and in the recent past especially in developing countries. Though the urban areas have well developed facilities for fresh water availability but the major issue is in the rural areas which are deprived of both centralized and decentralized treatment facilities. One such region is the Malwa region of Punjab state where high water contamination problems have been incurred. These regions were equipped with high RO plants by the government of Punjab in 25 villages with one RO system for each village in order to provide proper drinking water supplies for the inhabitants. But the regions were still continuously faced with health problems. So this study was conducted in order to evaluate the performance of RO systems in five such villages by collecting water samples from the RO inlet, pure and rejected RO waste and also determining their effect on the surrounding ground water by collecting samples along the RO site periphery at distances of 200-800 feet at an interval of 200 feet each which has a bore hole depth of 40-60 feet. Further this study assessed the power consumption and running costs of these RO systems and hence evaluating their overall performance efficiency in terms of treatment efficiency, impact on the surrounding ground water resources and their power consumption and hence running costs. The results showed that the TDS and sulphate values almost doubled in each case of RO reject as compared to RO inlet which could be a reason for increase in the TDS and sulphate values in the surrounding areas signifying the negative effect of RO reject on the surrounding ground water. Likewise, the hardness, fluoride and chloride content showed
a significant increase in RO reject which could again be linked to their increased values in the surrounding ground water. The contamination in the surrounding area due to RO reject could be linked to the diffusion of contaminants. Also, the RO pure showed the presence of total coli form in the drinking water which was to get treated by UV lamp and hence raises a question on the RO working. However, turbidity, pH and nitrate did not show much variation in the inlet and reject values but the nitrate value was more than the permissible value. Further, the comparison of values of the east and west direction and also of north and south direction gave an indication of the hydraulic gradient of the areas which was again a reason for increased values in one particular direction. The cost analysis showed that approx. 60,000 rupees are spent by the government on one RO plant monthly. The study concluded that in spite of a lot of expenditure by the government on these RO plants, their performance is not up to the mark; instead they have served as a source of increasing ground water pollution which calls for a need of further treatment of RO reject water. 

Wednesday, February 8, 2017

New M.Tech. Thesis Submitted from Computer Science


The advances in digital signal processing technology had led the introduction of speech processing in several applications like speech compression, enhancement, synthesis, and recognition. In this thesis the problem of speech recognition is studied and a speaker dependent, medium vocabulary, isolated numerals speech recognition system has been developed for Punjabi language. The study implements the Support Vector Machine based isolated numerals speech recognizer in three steps. The primary step performs the end point detection, framing and windowing of the speech signal. The second step includes speech feature extraction using Mel Frequency Cepstral Coefficients. Finally, in the last step the Support Vector Machine is primarily used as recognizer and classifier for numeral of Punjabi language. The system is ready to understand the spoken utterances in Punjabi language, by removing the unwanted noise and unsuitable data from the speech signal and then translating the speech wave into quality of feature vectors. These vectors are given to SVM to predict the spoken word in written form. The Support vector machine classifier is wide used and given high accuracy. SVM has the ability to deal with high dimensional knowledge and is used in many real world problems like text categorization, character recognition and classification.

New M.Tech. Thesis Submitted from Civil


Sustainable development in construction industry is aimed at improving the quality of life for everyone now and for the next generations. It encompasses environmental, economic and social dimensions, as well as the concept of stewardship, the proper management of resources used in construction and particularly concrete production in India being the second largest producer of cement in the world. The future challenge for the construction industry in India is clearly to meet the growing demand for infrastructure development and housing while at the same time limiting the impact of its burdens in CO2 emissions due to construction by use of alternative materials in construction and supplementary cementing materials as partial replacements to Ordinary Portland Cement.As we know concrete occupies unique position among the modern construction materials. Concrete is a material used in building construction, consisting of a hard, chemically inert particulate substance, known as aggregate (usually made for different types of sand and gravel), that is bond by cement and water. Concrete is normally used in the frame structure. But there is some limitation like compaction, surface finishes, maintaining strength at congested area. Due to these limitations we are trying to make self- compacting concrete with the use of mineral admixture. Self-Compacting Concrete (SCC) is an innovative concrete that does not require vibration for placing and compaction. It is able to flow under its own weight, completely filling formwork and achieving full compaction, even in the presence of congested reinforcement. Self-Compacting Concrete has properties that differ considerably from conventional concrete. This study investigates the workability and Compressive Strength properties of Self-Compacting Concrete containing Ground Granulated Blast Furnace Slag and Rice Husk Ash with super plasticizer and viscosity modifying agent. EUCOPLACANT 721 was used as super plasticizer and STRUCTRO 100 was used as Viscosity modifying agent. In this experimental program, trials were made at varying replacement levels (10%, 20%, 30% and 40%) of Ground Granulated Blast Furnace Slag and (5%, 10%, 15% and 20%) of Rice Husk Ash. The workability properties of SCC such as filling ability, passing ability and segregation resistance are evaluated using workability tests such as slump flow, V-funnel and L-Box tests. The compressive strength of the cubes at 7 days and 28 days are also obtained. The result obtained from the study proves that use of GGBS increases the Compressive strength of SCC by replacing cement to a percentage of 30% ,if the percentage is taken more than 30% the Compressive strength of SCC decreases. In case of GGBS and RHA combination the strength is highest by replacing cement with 5% of RHA and 30% of GGBS.

Monday, January 23, 2017

New M.Tech. Thesis Submitted from Electrical


The thesis is the study of combined solar and biomass hybrid arrangement for the generation of electric power. In developing country like India, the electricity demand is rising continuously but the coal reserves for electricity generation are at the verge of depletion. So there is a need of paying attention towards the alternative sources of energy generation. Renewable energy sources are the best choice as they provide clean energy and overcome global warming. But there are certain problems in operating these sources as stand-alone systems. So it will be highly beneficial if both stand-alone systems work together as hybrid system because hybrid system will provide reliable and continuous power without depending upon main system and support farmers financially by consuming biomass from their fields. The present study intends to fulfill high electricity demands by utilizing solar  energy and biomass (agri-residue) potential available in different villages of Hoshiarpur. The objective of thesis is to investigate the feasibility of hybrid solar-biomass power plant in village Binjon in Hoshiarpur district of Punjab. On the basis of data collected from different organizations and dealers, the biomass potential, per unit cost of generation from hybrid system and payback period is analyzed using MATLAB. The proposed hybrid system is designed with per unit cost of Rs 8.39. Less per capita expenditure is an index of development of any nation and by using such hybrid systems we can get less per capita expenditure values