International Journal of Research and Engineering
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Survey on Secure Data Aggregation using Clustering Methods in WSN
No full textWireless Sensor Network is a group of specialized transducers with communication infrastructure for monitoring and recording conditions at diverse locations..It is constrained in terms of computation, communication,memoryand energy due to node failure, limited scalability and low battery power. Data aggregation is used to reduce communication overhead and energy expenditure in(WSNs). Data aggregation is a process of aggregating the sensor data using aggregation approaches. But the Data Aggregation techniques are prone to link and node failure, significant variation in readings and time consuming. In this survey, the cluster based data aggregation methods are discussed which overcome the issues in convectional data aggregation approaches. In clustering technique, a Cluster Head (CH) is selected which collects data from other sensor nodes in that cluster and forward aggregated data to the base station. Since cluster head is responsible for the aggregated data it is highly prone to malicious attacks. Therefore, different security frameworks which ensure data confidentiality and data integrity have also been surveyed
Space based solar power versus ground based solar power
Get PDFThis paper aims to give a comparison between space based solar energy and ground based solar energy ,their efficiencies and the cost of transporting a specially designed solar power plant into space with current technology. Also this paper will suggest a ways to transmit energy received by the solar power plant at space back on earth. It is a scientific approach to determine which method is better in terms of efficiency and the practicalities such as cost and reliability of the method. The efficiencies of technologies used will be of the highest order that humanity has ever created. This study’s conclusion indicates that space based solar power has a huge leap when compared to ground based solar power. Further research must be done to elevate this idea.  
Adaptive undivided wheel opener
Get PDFAdaptive undivided wheel opener is a special purpose tool used to tighten and loosen all the nuts of wheel at the same time with less effort. It uses bevel gear assembly for transmitting torque to the nuts and lock – nut arrangement have been used to make the system adjustable to the required pitch length. The most desired advantage is that the total time consumed in the process is very less. It can open and refit the wheel with same tool. Tool is simple in design and easily portable along with vehicle
CPU cooling using PWM interfaced peltier unit
No full textWith the increase in the processing power of the computer, there is an increase in operating temperature. Even though newer processors have the ability to handle high temperatures up to 80 or 100 degree C, CPU intensive applications or games may cause the CPU to go beyond the given safe temperatures and even reach the critical temperature. In order to protect the processor from damaging the manufacturers have built in a mechanism that causes the processor to throttle. Throttling reduces the frequency at which the processor is operating there by reducing the temperature. However throttling hinders the performance of the CPU for a certain period of time until it reaches under the limit of safe operating temperature. There are a lot of CPU air, liquid, coolers available in the market. However the one that do their jobs very well are either very expensive or bulky or require various arrangements to be made. This configuration discusses the integration of thermo-electric cooler with the already present on board PWM controller.  
Survey: Detection of minor problems in the motorcar using mobile application
Get PDFThis system aims in providing necessary tips, tricks and even solutions to the minor problems faced by the user to get the vehicle up and running. The prime objective of this system is to develop a full-fledged Mobile Application which would provide the user with repair techniques provided he/she knows the symptoms of the minor problem. The user can choose their manufacturers and the model to get the required remedy. This is a full standalone offline application with the updated content of the new car model
Numerical Computation of Flow Reattachment Lengthovera Backward-Facing Step at High Reynolds Number
No full textInvestigation of flow separation and reattachment length over a backward facing step are such as the subjects of fundamental fluid dynamics research. The purpose this study is measurement of reattachment length on backward facing step. For this purpose, unsteady flow over a step was simulated in a 2-D by using Computational Fluid Dynamic. Then, secondary flow was added to the 1/3 height of step. In order to, the effect of angles of 15°, 30°, 45° and 90°, expansion ratios of 1.5, 2, 3 and 4, pressure coefficient and Reynolds number with 20000<Re<75000 over backward facing stepwere investigated. To verify the numerical model, the velocity profile using different turbulence models was compared with experimental values in a sudden expansion. The results showed that RNG k-ε turbulent model was selected as the most suitable model to predict recirculation flow over backward facing step. The results of numerical analysis indicated that the reattachment length increase with increasing step angle, expansion ratio and Reynolds number. Also with increasing Reynolds number, when secondary flow is added to 1/3 height of step, the eddy diameters and the length of recirculation flow zone decrease. Moreover, increasing pressure coefficient led to increasing the reattachment length
Comparative Analysis of HDFC Bank
Get PDF“A comparative analysis of HDFC bank financial performance before and after acquisition with centurion bank of Punjab”. The HDFC Bank was incorporated on August 1994 by the name of 'HDFC Bank Limited', with its registered office in Mumbai, India. India's third-largest lender, HDFC Bank, is acquiring Centurion Bank of Punjab for about 95.1 billion rupees ($2.4 billion) in stock, extending its network before foreign institutions are allowed larger access to the Indian banking market next year. Centurion Bank merged with Bank of Punjab (at swap ratio to 4:9) to form Centurion Bank of Punjab. Finally on May 23, 2008, the one of India's most renowned banks - HDFC Bank acquired Centurion Bank of Punjab Methodology is defined to study of methods by which we again knowledge, it deals with cognitive processes imposed on research the problems arising from the nature of its subject matter. Ratio analysis is the calculation and comparison of various financial ratio derived company’s financial statements. Total Debt Ratio, Efficiency Ratio, Return on Average Asset Ratios, Asset Utilization, Return on assets (ROA), Equity Multiplier, Tax Ratio, Profit Margin The total share capital for the year 2010 is 457.7 is higher than the other year total share capital value. The company should increase the profit margin after the acquisition the profit margin it’s continually lower then following years. The HDFC Bank should take necessary steps to improve the return on asset. The HDFC Bank is performing well after the acquisition but some of the variable like profit margin, tax ratio, returns on asset, borrowing. If all these variables are rectified then the company gets more profit
Solar Powered Health Bi-Cycle
Get PDFAs a humongous steep increase in global warming and major novice health concern which are caused due to combustibles, are in linkage to transportation facilities asnhumans are dependable, which cannot eradicate it. Solar power, a non conventional or renewable energy source and some fitness components are used in this project which is feasible and manoeuvre in real transportation world.So i took up an opening in combining these two major concerns and developed a new solar panel technology to an pre-existing bi-cycle called solar powered health cycle, which consists of a tread mill belt and a 12V brushless dc-motor, motor controller, a sealed lead ion battery, throttle valve and motor controllers. which are contemporarily and solely introduced in this project in which the pre-existing cycle has a dc chargeable power source, which works on it. But having another major problem in older version is Balancing which is completely resolved by having an two extra guided wheels of small size fitted to the rear wheel of this cycle which gives an immense balancing support in long deep turns and also the pot hole on road and an additional benefit of great gyroscopic balancing. So by this unorthodox design, human can achieve in minimizing the rise on effect in global warming and major health theme such as obesity, heart attack etc. and can also attain short-distance travel to homage, office, etc. thereby reducing the pollution, as well as a great results in physical fitness by using this cycle
Improving Non Personalized Recommendations using a Non-Linear Weighted Mean
Get PDFRecommender Systems have become an important part of our day to day life. The goal of any recommendation system is to present users with a relevant set of items which would interest them. This paper showcases a new technique and implements a non-personalized recommender system using the proposed technique. It is shown how the modification can be used to improve the recommendation as compared to existing algorithms. The comparison is done with the widespread method of average ratings and conclusions are drawn based on these tests
Targeted Advertising using Location
Get PDFAdvertising is the key factor of any social sites. The explosive growth of social networks increases the prolific availability in customer tastes and preferences. This data can be exploited to serve the customers better and offer them the advertisements to the customers. To provide relevant advertisements to consumers, its important to consider the location of the consumer as well. The consumers will be highly contented if the offers shown to them are easily accessible in nearby areas. we propose a model combining the idea of social and spatial data to provide targeted advertisements. Social data is acquired through user's Facebook profile and location of the user is found with the help of Beacons. In these we are also using the concept of GPS (Global Positioning System). GPS helps for providing the service globally, in which we can provide multiple services to multiple users. The GPS system operates independently of any internet reception, though these technologies can enhance the usefulness of the GPS positioning information