Towards the Integration of Multiple Classifier pertaining to the Student's Performance Prediction
Publication date: Available online 27 April 2016 Source:Perspectives in Science Author(s): Mrinal Pandey, S. Taruna Accurate predictions of students’ academic performance at early stages of the degree program helps in identification of the weak students and enable management to take the corrective actions to prevent them from failure. Existing single classifier based predictive modelling is not easily scalable from one context to another context, Moreover a predictive model developed for a particular course at a particular institution may not be valid for a different course at the same institution or any other in...
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
Feature Selection and Classification of Mechanical Fault of an Induction Motor Using Random Forest Classifier
Publication date: Available online 27 April 2016 Source:Perspectives in Science Author(s): Raj Kumar Patel, V.K. Giri Fault detection and diagnosis is the most important technology in condition-based maintenance (CBM) system for rotating machinery. This paper experimentally explores the development of a random forest (RF) classifier, a recently emerged machine learning technique, for multi-class mechanical fault diagnosis in bearing of an induction motor. Firstly, the vibration signals are collected from the bearing using accelerometer sensor. Parameters from the vibration signal are extracted in the form of statis...
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
Optimal Allocation of Solar based Distributed Generators in Distribution system using Bat Algorithm
The objective is to minimize power loss of radial distribution system. Different operating constraints related to the distribution network are considered. The stochastic nature of solar irradiance is modeled by using suitable probability distribution function (PDF). The proposed method is tested and validated on IEEE 33 bus test system (Source: Perspectives in Science)
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
Effect of using fly ash as alternative filler in hot mix asphalt
In this study, the effect of using fly ash (FA) in asphalt mixture as replacement of common filler was investigated. For these purpose, samples were prepared for different bitumen content (3.5% to 6.5% at 0.5% increments) by using 2% hydrated lime (HL) in control mix as well as varying percentage of FA ranging from 2% to 8% as alternative filler in modified mixes. The optimum bitumen content (OBC) was then determined for all the mix by Marshall mix design. Experimental results indicated higher stability value with lower OBC for the mixture having 4% FA as optimum filler content in comparison with conventional mix and stand...
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
Modeling and Control Strategies for Energy Management System in Electric Vehicles
Publication date: Available online 27 April 2016 Source:Perspectives in Science Author(s): Hitesh sharma, Om Prakash Jaga, Sanjay Maurya These days, electric vehicle (EV) is using fuel cell as a prime source of energy because of its high promising performance and clean source of energy. However, due to low dynamic performance it alone cannot meet the fast changing load requirement during acceleration or sudden uphill, deceleration or sudden downhill. Therefore, in electric vehicle main source is used in appropriate combination with auxiliary source. This paper presents a comprehensive state -of-the-art of control...
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
Cryptanalysis of Wang et al's Lattice-based Key Exchange Protocol
Publication date: Available online 27 April 2016 Source:Perspectives in Science Author(s): Daya Sagar Gupta, G.P. Biswas Wang et al. proposed a new hard problem on lattices which is an extension of the small integer solution (SIS) on lattices. This new generated hard problem is named to be bilateral in-homogeneous small integer solution (Bi-ISIS). Using the hardness of Bi-ISIS, Wang et al. proposed a new key exchange protocol, which is based on the lattice-based cryptography. In this paper, we signalize that Wang et al's lattice-based key exchange protocol is vulnerable to an attack, namely, man-in-the-middle (MITM...
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
Methods and Materials for reducing Flammability behaviour of Coir Fibre Based Composite Boards: A Review
Publication date: Available online 27 April 2016 Source:Perspectives in Science Author(s): C.R. Rejeesh, K.K. Saju Growing awareness and concern over the environment has promoted researchers over the world to focus their attention on studies related to natural fibre reinforced polymer composites along with their relative advantages. Coir fibre a biodegradable natural fibre extracted from the husk of the coconut (Cocos nucifera L.), traditionally used for making ropes, carpets or mattresses is now being used in various Fibre Reinforced Polymer composites. Coir fibre based composite boards as a substitute to plywood ...
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
Monitoring of Glacier in Alaknanda Basin using Remote Sensing Data
This study monitors the great Himalayas between the year 1998 to 2008 using satellite data. The Landsat satellite data was used to monitor variations in the area of glacier. Further the snow covered Area (SCA) of the part of Alaknanda basin was computed both for the winter and the summer season. The analysis for the same was done between 1998 to 2008. It was observed that the amount of decrease in the snow covered area was more in winter season compared to summer season. Which also shows the rate of retreat of glacier. This study also classifies the snow into two categories 1) Dry snow and 2) Wet snow. The pattern in the c...
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
CFD Study On Catalytic Converter Of Three Cylinder LCV Exhaust System for BS III Applications
Publication date: Available online 27 April 2016 Source:Perspectives in Science Author(s): C.P. Om Ariara Guhan, G. Arthanareeswaran, K.N. Varadarajan, P. Vadivel To keep the environment green, nowadays Indian government force automobile industry to comply the emission norms. The automotive manufacturers adopting latest technologies in the after treatment systems to achieve emission norms. In a BS III application light commercial vehicle exhaust system, diesel oxidation catalyst and muffler are used to reduce emission of the engine and noise level as well. Diesel oxidation catalyst reduces CO and un-burnt HC wh...
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
Improved e-IpDFT for Synchrophasor Estimation implemented in an FPGA-based Controller
Publication date: Available online 27 April 2016 Source:Perspectives in Science Author(s): Arpan Malkhandi, Tirthadip Ghose Synchronized Phasor measurement units (PMU) are the essential entity for measurement, control and automation of the grid and are experiencing a constant technological advancement. Modification and evolution of International PMU Standards (i.e. the IEEE C37.118) are helping in the aspects of Intelligence, Reliability and Accuracy of these smart electronic devices. Accurate Phasor estimation is very important for real-time implementation of PMU in the existing power grid. In this respect, this p...
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
Genetic Fuzzy System (GFS) based Wavelet Co-occurrence Feature selection in Mammogram Classification for Breast Cancer Diagnosis
Publication date: Available online 27 April 2016 Source:Perspectives in Science Author(s): Meenakshi M. Pawar, Sanjay N. Talbar Breast cancer is significant health problem diagnosed mostly in women worldwide. Therefore, early detection of breast cancer is performed with the help of digital mammography, which can reduce mortality rate. This paper presents wrapper based feature selection approach for Wavelet Co-occurrence Feature (WCF) using Genetic Fuzzy System (GFS) in mammogram classification problem. The performance of GFS algorithm is explained using mini-MIAS database. WCF features are obtained from detail wave...
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
Simulation of 2-Dimensional Subsurface Seepage Flow in an Anisotropic Porous Medium
In this study, we develop new analytical solution to estimate the transient behavior of phreatic surface in an anisotropic unconfined aquifer which is overlying a leaky base and subjected to multiple recharge and withdrawal. The hydrologic setting consists of a rectangular unconfined leaky aquifer adjacent to two water bodies of constant water head along the opposite faces of the aquifer. The remaining two faces of the aquifer have no flow conditions. The flow of seepage is approximated using two-dimensional Boussinesq equation, and solved analytically using mixed finite Fourier transform. Application of the new solution i...
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
Simulation and Parametric Optimization of Thermal Power Plant Cycles
The objective of the paper is to analyze parametric studies and optimum steam extraction pressures of three different (subcritical, supercritical and ultra-supercritical) coal fired power plant cycles at a particular main steam temperature of 600 0C by keeping the reheat temperature at 537 0C and condenser pressure at 0.09bar as constant. In order to maximize the heat rate gain possible with supercritical and ultra-supercritical steam conditions, 8 stages of feed water heater arrangement with single reheating is considered. The system is optimized in such a way that the percentage exergetic losses are reduced for the incre...
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
Iron oxide nanoparticles synthesis through a benign approach and its catalytic application
Publication date: Available online 27 April 2016 Source:Perspectives in Science Author(s): Henam Sylvia Devi, Thiyam David Singh Synthesis of iron oxide nanoparticles was carried out through an environmental benign route using tannic acid as reducing and capping agent. The TEM image shows the details of the poly-dispersity in size of the iron oxide nanoparticle and average diameter of the particles range in between 30-50nm. XRD result rule out that iron oxide nanoparticle is a mixed phase constituted by Fe+2 and Fe+3 ions. The average size of the particle determined from XRD data is 45.6nm which is agreeable with t...
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
An approach to Identification of Unknown IIR Systems using Crossover Cat Swarm Optimization
Publication date: Available online 27 April 2016 Source:Perspectives in Science Author(s): Archana Sarangi, Shubhendu kumar Sarangi, Siba Prasada Panigrahi Traditional learning techniques creates stability problem in Infinite Impulse Response (IIR) systems identification. Additionally the performance significantly degrades if reduced order adaptive models are used for such identification. In this paper identification of IIR system is formulated as an optimization problem. This paper also proposes a modification to the Cat Swarm Optimization algorithm i.e. Crossover Cat Swarm Optimization which always tries to exp...
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
