Fabrication of Al-SiC-B4C Metal Matrix Composite by Powder Metallurgy Technique and Evaluating Mechanical Properties
Publication date: Available online 10 May 2016 Source:Perspectives in Science Author(s): Anil Kumar Bodukuri, K. Eswaraiah, Katla Rajendar, V. Sampath The applications of metal matrix composites are increasing day by day due to high strength to weight ratio. In the present work Al- SiC-B4C metal matrix composite is prepared from sintering of mechanically alloyed powder (ball milling) in powder metallurgy processes. Three different combinations of compositions in volume fraction were chosen namely 90%Al 8%SiC 2%B4C, 90%Al 5%SiC 5%B4C and 90%Al 3%SiC 7%B4C. An attempt has been made to study the characteristics of...
Source: Perspectives in Science - May 10, 2016 Category: Science Source Type: research
Optimal set-up and surface finish characteristics in electrical discharge machining on Ti-5al-2.5sn using graphite
Publication date: Available online 9 May 2016 Source:Perspectives in Science Author(s): Ashikur Rahman Khan, M.M. Rahman, Zayed-Us-Salehina, Saifur Rahman In electrical discharge machining (EDM) process which is an advance and non-conventional technique, the selection of machining parameters for achieving high machining performance is an important; however, very problematic task. In the current manuscript it was aimed to ascertain optimal machining set-up of EDM process related with fine surface finish. The die-sinking EDM was carried out using the both polarities (positive and negative) of graphite electrode....
Source: Perspectives in Science - May 9, 2016 Category: Science Source Type: research
Design analysis of rotary turret of Poucher Machine
Publication date: Available online 6 May 2016 Source:Perspectives in Science Author(s): Jigar G. Patel, Mitesh B. Panchal This paper present design analysis of rotary turret plate of 5kg capacity for food product packaging machine.The turret plate has been designed considering two different criteria, first one is inertia force approach with only self-weight of turret plate and second is with mass of pouches. A 3-dimenssional CAD model of rotary turret assembly has been prepared in using solid modeling packages CRE-O. The finite element analysis (FEA) of turret plate has been carried out using analysis software ANSY...
Source: Perspectives in Science - May 6, 2016 Category: Science Source Type: research
Interlinking Feasibility of Five River Basins of Rajasthan in India
Publication date: Available online 3 May 2016 Source:Perspectives in Science Author(s): Sunil Kumar Vyas, Gunwant Sharma, Y.P. Mathur, Vinay Chandwani The increasing population and large scale growth with the development of modern science and technology has indicated very high stress on water sector in Rajasthan in India. Availability of water and uniformity of rainfall distribution is changing day by day due to shifting of monsoon in Rajasthan. The spatial and temporal variations in the rainfall in different river basins in Rajasthan are drastic due to which flood situation arises in the tributaries of Chambal...
Source: Perspectives in Science - May 5, 2016 Category: Science Source Type: research
Analyzing edge detection techniques for feature extraction in dental radiographs
Publication date: Available online 6 May 2016 Source:Perspectives in Science Author(s): Kanika Lakhani, Bhawna Minocha, Neeraj Gugnani Several Dental problems can be detected using radiographs but the main issue with radiographs is that they are not very prominent. In this paper, two well known edge detection techniques have been implemented for a set of 20 radiographs and number of pixels in each image has been calculated. Further, Gaussian filter has been applied over the images to smoothen the images so as to highlight the defect in the tooth. If the images data are available in the form of pixels for both hea...
Source: Perspectives in Science - May 5, 2016 Category: Science Source Type: research
Biodiesel Production from Waste cotton seed oil using low cost Catalyst: Engine performance and emission characteristics
Publication date: Available online 6 May 2016 Source:Perspectives in Science Author(s): Duple Sinha, S. Murugavelh Production of fatty acid methyl esters from waste cotton seed oil through transesterification was reported. The GC-MS analysis of WCCO oil was studied and the major fatty acids were found to be Palmitic acid (27.76%) and Linoleic acid (42.84%). The molecular weight of the oil was 881.039g/mol. A maximum yield of 92% biodiesel was reported when the reaction temperature, time, methanol/oil ratio and catalyst loading rate were 60°C, 50min, 12:1 and 3% (wt.%) respectively. The calcined Egg shell catalyst ...
Source: Perspectives in Science - May 5, 2016 Category: Science Source Type: research
A Comparison of Classification Techniques for Glacier Change Detection using Multispectral Images
Publication date: Available online 4 May 2016 Source:Perspectives in Science Author(s): Rahul Nijhawan, Pradeep Garg, Praveen Thakur Main aim of this paper is to compare the classification accuracies of glacier change detection by following classifiers: sub-pixel classification algorithm, indices based supervised classification and object based algorithm using Landsat imageries. It was observed that shadow effect was not removed in sub-pixel based classification which was removed by the indices method. Further the accuracy was improved by object based classification. Objective of the paper is to analyse different...
Source: Perspectives in Science - May 4, 2016 Category: Science Source Type: research
Adaptive Circular Queue Image Steganography with RSA Cryptosystem
Publication date: Available online 3 May 2016 Source:Perspectives in Science Author(s): Mamta Jain, Saroj Kumar Lenka, Sunil Kumar Vasistha The major objective of the article is to supply the novel and efficient methodology of digital image steganography that describes individuality regarding secret transmission using the adaptive circular queue least significant bits (LSBs) substitution. The data structure queue is employed dynamically in resource distribution between multiple communication recipients and once secret information transmitted asynchronously. Here, RSA cryptosystem is employed for secret informatio...
Source: Perspectives in Science - May 3, 2016 Category: Science Source Type: research
Solving channel allocation problem using new genetic operators - an experimental approach
Publication date: Available online 2 May 2016 Source:Perspectives in Science Author(s): Raja Marappan, Gopalakrishnan Sethumadhavan, U. Harimoorthy Channel allocation schemes are required in mobile networks to allocate bandwidth and channels to mobile stations. The main objective of channel allocation is to achieve maximum efficiency by means of channel reuse by avoiding adjacent and co-channel interferences among nearby cells or networks that share the bandwidth. Channel Allocation problem, an NP-hard problem, which means an exact solution cannot be found in polynomial time. Evolutionary and heuristic algorithms...
Source: Perspectives in Science - May 1, 2016 Category: Science Source Type: research
Email Based Remote Access and Surveillance System for Smart Home Infrastructure
Publication date: Available online 2 May 2016 Source:Perspectives in Science Author(s): Pooshkar Rajiv, Rohit Raj, Mahesh Chandra With the rapid rise of Internet of Things in public domain, people expect fast, reliable and on-demand home security via the Internet. However, existing remote home surveillance systems place a very rigid constraint on authentication and require customized hardware and software. In this paper we have proposed an ingenious and reliable internet based, home access system for smart homes that can be easily deployed on generic hardware. The proposed architecture uses popular email service ...
Source: Perspectives in Science - May 1, 2016 Category: Science Source Type: research
Analysis of Multi Cloud Storage applications for resource constrained mobile devices
Publication date: Available online 2 May 2016 Source:Perspectives in Science Author(s): Rajeev Kumar Bedi, Jaswinder Singh, Sunil Kumar Gupta Cloud Storage, which can be a surrogate for all physical hardware storage devices, is a term which gives a reflection of an enormous advancement in engineering. [1] However, there are many issues that need to be handled when accessing cloud storage on resource constrained mobile devices due to inherent limitations of mobile devices as limited storage capacity, processing power and battery backup. [2] There are many multi cloud storage applications available, which handle is...
Source: Perspectives in Science - May 1, 2016 Category: Science Source Type: research
Improving the Performance of Jaggery Making Unit using Solar Energy
Publication date: Available online 2 May 2016 Source:Perspectives in Science Author(s): Lakshmi Pathi Jakkamputi, Mohan Jagadeesh Kumar Mandapati The thermal performance of open earth pan furnace used conventionally for preparing jaggery (gur) is very low. Dry bagasse is used as a fuel to produce heat in a combustion process in the open earth furnace. The energy loss due to inefficient combustion process, the energy loss through exhaust gases and other losses due to furnace wall, convection and radiation bring the thermal efficiency of open earth pan furnace to a low value. Certain quantity of energy produced in co...
Source: Perspectives in Science - May 1, 2016 Category: Science Source Type: research
V-Trough Concentrator with Integrated Cooling for Performance Enhancement of Rooftop PV in Arid and Semi-Arid Regions of INDIA
Publication date: Available online 2 May 2016 Source:Perspectives in Science Author(s): Siva Naga Raju, K Srikanth Reddy, Lokesh Panwar, Rajesh Kumar In this paper, authors present an experimental demonstration of performance enhancement and parameter variation analysis of a rooftop solar photovoltaic system equipped with V-Trough concentrator and integrated cooling technique. The performance enhancement is analysed for two cases viz. performance with concentration and performance with concentration plus back and front surface cooling. The V-Trough concentrator with integrated cooling system resulted in improve...
Source: Perspectives in Science - May 1, 2016 Category: Science Source Type: research
An Improved Method to Estimate the Fractal Dimension of Color Images
In this study, the improved differential box counting method is applied to the 24 bit representation of RGB color images to extract the roughness of color images. The validation of the proposal is performed by generating twelve different synthesized color images in terms of small variation of intensity value in RGB space and compared with previously three well defined existing methods that are weighted sum, average and desaturation method. The results showed that our proposed method is able to capture the accurate sharp variation of roughness as compared to the existing methods. (Source: Perspectives in Science)
Source: Perspectives in Science - May 1, 2016 Category: Science Source Type: research
New Approximation Algorithms for Solving Graph Coloring Problem - An Experimental Approach
Publication date: Available online 30 April 2016 Source:Perspectives in Science Author(s): Raja Marappan, Gopalakrishnan Sethumadhavan, R.K. Srihari Some of the real world applications require the solution to Graph Coloring Problem, an NP-hard combinatorial optimization problem. χ(G), the chromatic number of a graph G, the minimum number of colors required to color the vertex set V(G) with adjacent vertices assigned with different color can also be obtained using evolutionary methods. This paper exhibits two new approximation methods of solving graph coloring based on μ½(G), the median of the degrees V(G). In ...
Source: Perspectives in Science - April 30, 2016 Category: Science Source Type: research
