IJEA - Volume 5 Issue 5 (May2016)


Sr/No/ Title Pdf
1 Improving Diversity in MIMO Systems Using STBC
Gaurang Shirodkar, Janki Kholiya, Suprita Kulkarni

Abstract-MIMO (multiple input multiple output), has the capability of high data rate transmission, high spectral efficiency through spatial multiplexing and diversity gain and robustness against multi-path fading, transmission power and other channel impairments. The focus of the project being the implementation of MIMO for diversity. The role of STBC and the Alamouti code on MIMO (2×2) system is also studied to improve diversity and the performance analysis is done by implementing it in MATLAB software. Using the concept of diversity, the results Signal to Noise Ratio (SNR) and Bit Error Rates (BER) are calculated for 2×1, 2×2, 2×3 and 2×4 MIMO systems. From the output is observed that as the number of antennas increases in MIMO systems, SNR increases and hence, BER decreases.

2 Modeling and Analysis of the Crankshaft using Ansys Software
Vineet kumar Dwivedi

Abstract- Crankshaft is one of the critical components for the effective and precise working of the internal combustion engine. In this paper a dynamic simulation is conducted on a crankshaft from a single cylinder 4- stroke diesel engine .A three-dimension model of diesel engine crankshaft is modeled using UNIGRAPHICS software. Finite element analysis (FEA) is performed to obtain the variation of stress magnitude at critical locations of crankshaft. Simulation inputs are taken from the engine specification chart. The dynamic analysis is done using FEA Software ANSYS which resulted in the load spectrum applied to crank pin bearing. This load is applied to the FE model in ANSYS, and boundary conditions are applied according to the engine mounting conditions. The analysis was done for different engine speeds and as a result critical engine speed and critical region on the crankshaft were obtained. Stress variation over the engine cycle and the effect of torsional load in the analysis were investigated.

3 Numerical Simulation on Effect of Climate & Design Parameters on the Single Slope Solar Still
Uday Joshi, Ankur Geete

Abstract- Solar still is one of the emerging techniques for purification of water. It works on the principle that the greenhouse effect; the radiation from the sun evaporates water within a closed glass coated chamber at a temperature above the close. On the basis of various literature surveys, a single basin active solar still is chosen for any development and performance analysis that is subjected to be coupled with exhausted glass tube solar collector for top temperature water feeding in to the basin of solar still. The developed solar still basin space of 1 m2 is planned to be tested with convert in to double basin by exploitation glass tray within the solar still. Thus heat loss of the higher portion was cut back it provide additional output of the pure water. The experimental found out will analyze by single and double basin active solar still. The problem is going to be additionally declared on CFD software package. This experimental setup has been ready for the various climate (MP,Gujrat,MH) for the performance of the only basin active solar stills and to analysis the efficiency of solar still at totally different design parameter additionally this experimental setup data’s also are verify with CFD software package. In present study we investigate the solar still model for different states like MP, Gujarat and Maharashtra for hourly basis 10 am to 3pm total 6 hours by CFD Simulation. From results obtained that peak temperature is occurred in 2 to 3 pm and maximum amount of volume fraction of water is achieved due higher evaporation of impure water. Peak temperature is achieved due to solar rays is attack on the glass and the impure water is start to evaporate. Due to solar radiation water gets heated and vaporizes. The temperature difference between water vapour and glass leads to condensation of vapour in glass surface. The condensed water droplets slide down and get collected in distillate channel. The amount water collected in channel is considered to be the fresh water production rate. Finally we see from the simulated results that Water Volume Fraction in Maharashtra is greater than Gujarat and MP.

4 Policy Based File Assured Deletion (Fade) On Cloud Storage
Devang Dave

Abstract- Cloud Storage is an emerging business model for data outsourcing. Cloud storage will be a cost – saving business solution for unused storage and provide technical support for data backups. It can also save electric power and maintenance costs for data centers. Cloud must provide security guarantees for the outsourced data, which is maintained by third parties. This project proposes a secure overlay cloud storage system that achieves fine – grained, policy - based access control and File Assured DEletion (FADE). This scheme reliably deletes files of revoked file access policies. FADE enables to have a fine – grained control of how to delete files. To achieve this, FADE is build upon standard cryptographic techniques, such that it encrypts outsourced data files to guarantee their privacy and integrity and deletes files to make them unrecoverable to anyone. Design is geared toward the objective that it acts as an overlay system that works on cloud storage services. Evaluation is based on the performance of FADE in terms of running time overhead and monetary cost. Performance results also depend on the deployment environment. Evaluation results show that the performance overhead of FADE becomes less significant when the size of the actual data file content increases. Thus, FADE is more suitable for enterprises that need to archive larger files with a substantial amount of data.

5 Change Detection in Land Pattern using Fuzzy Logic Based GIS Modeling
Pradeep Yadav

Abstract- Geographical Information System (GIS) can process georefrenced data and provide answers to to questions involving ,say, the particulars of a given location ,the distribution of selected phenomena ,the change have been occurred since previous analysis ,the impact of specific event ,or the relationship and systematic patterns of region. This system aims to address such environmental analysis issues by using GIS obtained images and image processing using of the same to classify them based on input colour channels and then carry out a further classification using fuzzy logic membership function to determine land type namely , crops, urban and water bodies. The goal of this project is to use fuzzy logic to analyse a given pixel of a geospatial or topographical image in order to determine the colour of the pixels using the HSV colour model. Based on the collection of similar pixels the system aims to interpret what the land type is. And present the user with an informative visual data representation of type of land and with its percentage.

G.S.Gowri (Ph.D Scholar) and Dr. P. Ponmuthuramalingam (Associate Professor& Head)

Abstract- Image segmentation is the process of partitioning a digital image into multiple segments. Interactive image segmentation is a most important topic in computer vision, medical imaging. Image segmentation is typically used to locate objects and boundaries. The problem of image segmentation has a lot of attention since the early days of computer vision research, one weakness in the interactive image segmentation algorithm is the lack of more intelligent way to understand the intention of user input. In this survey we are discussing various methods and algorithms for image segmentation. Keywords— Image segmentation, Graph cut, Pixel, Boundaries.