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Drought Modeling using Geospatial Technology in Tirunelveli District
Muthumeena M ; Devi G
Civil Engineering
Year: 2015, Volume:1, Issue : 12
Pages: 288 - 298
Drought is considered to be most vulnerable National hazards affects the vast amount of people. The impacts of drought are non-structural and spread over a large geographical area which damages the life of the human beings. Tirunelveli is located in South part of Tamilnadu state. India, was selected as the study area. All the spatial and temporal data needed for the drought analysis were collected for Tirunelveli District from various Government departments. GIS is used to analyse the spatial and temporal variation of meteorological data across the study area to determine the affected area accurately for effective drought proofing. Meteorological drought analysis was performed by Standardised Precipitation Index (SPI) method to determine drought severity class. Using ten years rainfall data, frequencies of various classes of drought were determined. Based on this, meteorological drought risk area map
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WCDMA System using High Power Amplifier
Kavita Barange ; Dr. Soni Changlani; Rahul Sharma
Electronics & Communication Engineering
Year: 2015, Volume:1, Issue : 12
Pages: 299 - 305
This paper analyzes the performance of Wireless CDMA when high power amplifier use in the processing block of this. The simulation is carried out on MATLAB 7.8.1, the result shows the BER, MER comparison of WCDMA with using and without using high power amplifier. In this paper author analysis the WCDMA System without high power amplifier and with high power amplifier and the calculation of AWGN channel 15 db SNR, Received Signal via High efficiency power amplifier is plotted, AM/ PM response of resultant signal is plotted. BER, MER is calculated as a parameter to judge the performance of the proposed system.
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A Novel Approach to Improve Spam Detection using SDS Algorithm
Jibi G Thanikkal ; Mohammad Danish
Computer Engineering
Year: 2015, Volume:1, Issue : 12
Pages: 306 - 310
E-shopping is a form of electronic commerce which allows consumers to directly buy goods or services from a seller over the Internet using a web browser. This popularity has made web an excellent source of gathering customer opinions about a product. Positive opinions bring significant business growth and financial gains. Similarly negative opinion cause sales loss and affect companies reputation. There is no reported study on assessing the trustworthiness of opinions, which is crucial for all opinion based applications, although web spam and email spam have been investigated extensively. Existing research is more focused towards classification and summarization of online opinions. In this work, an attempt has been made to detect whether an opinion or the review is a spam or a non-spam, to provide a trusted view to help the customer in taking a decision. The trustworthiness of the reviews is assessed as spam or a non-spam review, which includes both duplicate and near duplicate reviews classified as spam reviews, and partially related and unique reviews classified as non-spam reviews. The proposed method improves the spam detection system using SDS algorithm. Experimental results demonstrate the effectiveness of the proposed technique in detecting spam and non-spam reviews.
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Evaluation on Failure Analysis of an Automobile Differential Pinion Assembly
Ronak P Panchal ; Pratik B.Umrigar
I.C.Engine &Automobile
Year: 2015, Volume:1, Issue : 12
Pages: 311 - 317
Bevel gears have become a subject to research interest because the dynamicload, attention of the noise level during operation and demand for lighter and smaller. In such type of gears there is a problems of failures contact at meshing the teeths. This can be avoided or minimized by proper method analysis and modification of the different gear parameters. This thesis presents characteristics of a bevel gear in dynamic condition involving meshing stiffness and other stresses produce. The purpose of this thesis is by using numerical approach to develop theoretical model of bevel gear and to determine the effect of meshing gear tooth stresses by taking material case hardened alloy steel (15Ni4Cr1) . To estimate the meshing stiffness, three-dimensional solid models for different number of teeth are generated by Solid works and the numerical solution is done in Ansys which is a finite element analysis.
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Performance Analysis of an Automobile Radiator using CFG
Hardikkumar B Patel ; Deepu Dinesan
Mechanical Engineering
Year: 2015, Volume:1, Issue : 12
Pages: 318 - 322
The thermal performance of an automotive radiator plays an important role in the performance of an automobile’s cooling system and all other associated systems. For a number of years, this component has suffered from the little attention with very little changing in its manufacturing cost, operation and geometry. As opposed to the old tubular heat exchangers currently form the backbone of today’s process industry with their advanced performance reading levels tubular heat exchanges can only dream of. In this thesis, we perform first solid modeling of the Radiator in Solid works and then this solid model is transferred to the ANSYS Workbench mesh module for meshing. After completing meshing, this meshed model is transferred to ANSYS CFX for CFD Analysis. Once CFD Analysis is complied with ANSYS CFX. Our Aim is to examine how the efficiency of the radiator can be enhanced by changing certain geometrical and operating parameter like Fluid Composition (Additives), Composition percentage, Tube Diameter etc. After completing all the above parametric study, we can suggest best configured radiator for optimum performance.
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Finite Element Analysis and Design Optimization of Platen for Injection Molding Machine
Rahul M Thaker ; Neha B. Joshi
Mechanical Engineering
Year: 2015, Volume:1, Issue : 12
Pages: 323 - 328
Plastics are certainly most versatile of all known materials today and have therefore, established themselves in enviable position from where are not even possible to replaced. Injection molding machine is one of the most widely used method of conversion of plastic into various end products application to wide range of plastic materials from plastic commodity to specialty engineering plastic. In injection molding machine platen play a very important role. During the process generally compressive stress generates at particular regions. As load varies with fast rate there is chance to failure of tie bar rod. Due to heavy mould shape, size of platen also change, that’s increase its weight as well as stress level at certain region and this is not good in practice. This leads to failure of platen or failure of tie rod due to stretching by nut and platen. The aim of this research is study about those areas where stress can affect the failure of tie bar due to heavy weight of platen the deflection or misalignment with movable platen. Finally redistribution of stress so that uniform stress achieve (optimization of platen). This project is including Finite Element Analysis and Optimization of a Typical Structural Component of a Plastic Injection Molding Machine. The aim of project is to optimize a typical structural component (platen) by using finite element analysis after checking induced stresses with allowable design stress. Optimize design of platen with the use of removing material from them. Hence design modification of platen is carried out to achieve good strength and cost effectiveness.
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Design and Fatigue Analysis of Epicyclic Gearbox Carrier
Maulik M. Patel ; Neha B. Joshi
Mechanical Engineering
Year: 2015, Volume:1, Issue : 12
Pages: 329 - 333
Gear box is used for the transmission purpose. The load, environmental effect etc. parameters are affect the carrier. In this present study the carrier is used as the present study. The input parameters selected for analysis is force, pressure, load etc. are taken as fixed parameters. For each fatigue analysis, total deformation, von-mises stress and the fatigue life is evaluated. By using creo-parametric 2.0, the different modify model is created, and by using the ansys 14.5 software, analysis of that generating model is done. The task would be accomplished with the help of manual calculation and validate with the help of kiss-software. And also it is accomplished with the help of CAD modelling and finite element analysis by using CREO-PARAMETRIC-2.0 AND ANSYS 14.5 software.
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Experimental Investigation on Performance of HCCI Combustion in Diesel Engine with Bio-Fuel
Himmatsinh R. Chauhan ; Vivek G. Trivedi; Preksha K.; Shyam K. Dabhi
Mechanical Engineering
Year: 2015, Volume:1, Issue : 12
Pages: 334 - 339
Demand for petroleum products is increasing day-by-day however the resources are fairly limited. Also there is increase in the environmental pollution specially pollution from the automotive/engine exhaust. Due to known hazardous effect of environment pollution and strict pollution norms reducing exhaust emissions and increasing the fuel economy of internal combustion engines have found global importance. Therefore to overcome these issues a technology is needed to be developed and HCCI is such a technology, which is highly efficient as well as less polluting. HCCI is a hybrid of both spark ignition (SI) and compression ignition (CI) combustion concepts [1]. HCCI engines operates with the compression ignition of homogeneous charge formed by premixing air and fuel mixtures through early injection on to the hot surface of a heated chamber known to be the vaporizer. Engine is operated in the region of lower equivalence ratios to improve efficiency and reduce emissions. Due to the increase in vehicle population, the lean combustion technology is to be employed and it is mainly to be adapted in IC engines as these engines are widely in use. The NOx emission can be reduced only by reducing the flame temperature of combustion and lean burn engines produce lower temperatures so that it reduces the formation of thermal oxides of nitrogen. The excess air employed in lean burning results in a more complete combustion of the fuel which reduces both the hydrocarbon and carbon monoxide emissions [4].
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Emery The Industrial Waste as a Supplementary Cementitious Material in Self Compacting Concrete
Chetan V Borad ; Prof. K M Dandha; B G Buddhdev; Maulik D Kakkad
Civil Engineering
Year: 2015, Volume:1, Issue : 12
Pages: 340 - 344
Self compacting concrete (SCC) is a flowing concrete mixture that is able to consolidate under its own weight. The highly fluid nature of SCC makes it suitable for placing in difficult conditions and in sections with congested reinforcement. Knowing this, it is implied that the industry can save many working hours by reducing the need for people vibrating the fresh concrete to compact it, when there is no need for compacting, the quality assurance of the vibrating as an uncertain factor, regarding the final results of the concrete. SCC generally has a higher powder content then Normal Vibrated Concrete (NVC) and thus it is necessary to replace some of the cement by cementitious material to achieve workable, durable and economical concrete. The benefit of using ‘Emery’ as a supplementary material in SCC leads to many technical advantages. Mix design methods, tests, target properties and constituents materials were selected. The result shows that for constant filling ability of the SCC, replacement of cement requires an increase in water/powder ratio and a reduction in superplasticiser dosage. The project can lead to the use of Eamry in SCC, thus saving landfill and reduce CO2 emission by the use of less cement. An attempt has been made to study the behaviour of SCC with Emery as SCM and understands the effect of the mineral admixtures on fresh & hardened properties of SCC. The paper has investigated the compatibility of above emery powders in SCC along with chemical admixture such as super plasticizers. Result has indicative of enhancement in self compact ability & hardened strength of SCC by replacement of cement by emery.
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Design and Implementation of Energy Stored Quasi ZSI System for Improving PQ Issues in Hybrid System
Sathishkumar R ; J Hephzibah Jose Queen
Renewable Energy
Year: 2015, Volume:1, Issue : 12
Pages: 345 - 353
The voltage fed Quasi Z-Source inverter has been proposed in this paper for Photovoltaic applications. By using Quasi Z-Source inverter in Photovoltaic Systems for improved Buck and Boost capability and reliability, dynamical characteristics of the Quasi Z-Source inverters are investigated by small signal analysis. Based on the dynamic model stand-alone operation and grid connected operation with closed loop control method are carried out which are the two necessary operation modes of distributed generation in distributed power grids. The modulation index and shoot through duty ratio of Quasi Z-Source inverter, Constant capacitor voltage control method is proposed in a two stage control manner. The quasi ZSI helps to carry out the operation in the hybrid system Simulation results are carried out in this paper.
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Abstract
