An Efficient Backbone Based Quick Link Failure Recovery Multicast Routing Protocol
Publication date: Available online 29 April 2016 Source:Perspectives in Science Author(s): Deepika Vodnala, S. Phani Kumar, Srinivas Aluvala MANET is a set of independent mobile devices which communicate through constrained wireless links over a relative bandwidth. Due to the mobility of devices, the topology of the network may change rapidly and unpredictably over time, making multicast routing and route maintenance a very crucial task. Plenty of protocols have been proposed for the construction of virtual backbone, but they have limitations in terms of control overhead, delay, throughput, energy consumption and...
Source: Perspectives in Science - April 28, 2016 Category: Science Source Type: research
Electromechanical Modeling of Tapered Ionic Polymer Metal Composites Transducers
Publication date: Available online 29 April 2016 Source:Perspectives in Science Author(s): Rakesha Chandra Dash, Sujoy Mukherjee Ionic polymer metal composites (IPMCs) are relatively new smart materials that exhibit a bidirectional electromechanical coupling. IPMCs have large number of important engineering applications such as micro robotics, biomedical devices, biomimetic robotics etc. This paper presents a comparison between tapered and uniform cantilevered Nafion based IPMCs transducer. Electromechanical modelling is done for the tapered beam. Thickness can be varied according to the requirement of force and de...
Source: Perspectives in Science - April 28, 2016 Category: Science Source Type: research
FEA Simulation and RSM Based Parametric Optimisation of Vibrating Transmission Gearbox Housing
Publication date: Available online 29 April 2016 Source:Perspectives in Science Author(s): Ashwani Kumar, Pravin P Patil The main objective of this research work is optimisation of connecting bolts number using Detuning principle. Connecting bolts are used for constraining transmission system on vehicle frame. The model of transmission system designed for FEA and RSM analysis consist of (5-37) connecting bolts for tightly mounting on vehicle frame. At zero displacement condition when all 37 connecting bolts were constraint, natural frequency reaches in a higher order range (1650.5-3565.1) Hz. This higher order rang...
Source: Perspectives in Science - April 28, 2016 Category: Science Source Type: research
Inhibitory action of dextran on the corrosion of 6061Al15%(v) SiC(P) composite in HCl medium
Publication date: Available online 29 April 2016 Source:Perspectives in Science Author(s): B.P. Charitha, Padmalatha Rao Dextran, a biopolymer was used as an eco-friendly inhibitor to control the corrosion of 6061Al15%(v)SiC(P) composite in 0.25M HCl medium. The electrochemical studies like potentiodynamic polarization method, electrochemical impedance spectroscopy techniques were adopted. Evaluation of kinetic and thermodynamic parameters was done. Inhibitor adsorption on the surface of the composite was confirmed by surface morphology studies like SEM and EDX studies. Maximum inhibition efficiency of 80% was obta...
Source: Perspectives in Science - April 28, 2016 Category: Science Source Type: research
Life Cycle Cost Analysis of Commercial Buildings with Energy Efficient Approach
Publication date: Available online 29 April 2016 Source:Perspectives in Science Author(s): Nilima N. Kale, Deepa Joshi, Radhika Menon In any construction project, cost effectiveness plays a crucial role. The Life Cycle Cost LCC) (analysis provides a method of determining entire cost of a structure over its expected life along with operational and maintenance cost. LCC can be improved by adopting alternative modern techniques without much alteration in the building. LCC effectiveness can be calculated at various stages of entire span of the building. More over this provides decision makers with the financial infor...
Source: Perspectives in Science - April 28, 2016 Category: Science Source Type: research
Performance testing (Load) of web applications based on test case management
Publication date: Available online 29 April 2016 Source:Perspectives in Science Author(s): Rijwan Khan, Mohd Amjad This paper covers the importance of performance testing of web applications and analysing the application's bottleneck based on hardware, software and resource utilization. The main focus of this paper is performance testing based on load test. It has been seen that everyone want a very fast application but same time reliability of the application takes an important role so customer's satisfaction push for the performance testing of a given application. Performance testing determine how fast some aspec...
Source: Perspectives in Science - April 28, 2016 Category: Science Source Type: research
MRAS Speed Estimator with Fuzzy and PI Stator Resistance Adaptation for Sensorless Induction Motor Drives using RT-Lab
Publication date: Available online 29 April 2016 Source:Perspectives in Science Author(s): S. Mohan Krishna, J.L. Febin Daya This paper presents a real-time simulation study of Model Reference Adaptive System based rotor speed estimator with parallel stator resistance adaptation mechanism for speed sensorless induction motor drive. Both, the traditional Proportional Integral and Fuzzy logic based control mechanisms are utilized for stator resistance adaptation, while, the rotor speed is estimated parallely by means of Proportional Integral based mechanism. The estimator's response to dynamic changes in Load perturb...
Source: Perspectives in Science - April 28, 2016 Category: Science Source Type: research
Mobile robot navigation in unknown static environments using ANFIS controller
This article presents the Adaptive Neuro-Fuzzy Inference System (ANFIS) controller for mobile robot navigation and obstacle avoidance in the unknown static environments. The different sensors such as ultrasonic range finder sensor and sharp infrared range sensor are used to detect the forward obstacles in the environments. The inputs of the ANFIS controller are obstacle distances obtained from the sensors, and the controller output is a robot steering angle. The primary objective of the present work is to use ANFIS controller to guide the mobile robot in the given environments. Computer simulations are conducted through MA...
Source: Perspectives in Science - April 28, 2016 Category: Science Source Type: research
Evolutionary Approach for Model Order Reduction
Publication date: Available online 27 April 2016 Source:Perspectives in Science Author(s): Shilpi Lavania, Deepak Nagaria The phenomenon of compact model has become an extensive area of research. This paper presents a mixed approach for model order reduction of a single input and single output system (SISO). The technique is based on Padé approximation which gives equal emphasis to time moments and markov parameters and a nature based particle swarm optimization approach. In this mixed method numerator is derived using particle swarm optimization and denominator is derived using Padé approximation. The worthiness...
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
Application of semi-analytical mathematical approach for thermal analysis of convective-radiative fin with variable specific heat
Publication date: Available online 27 April 2016 Source:Perspectives in Science Author(s): J. Dutta, Rakesh Kumar This research paper depicts the application of highly powerful and accurate semi-analytical methods, Differential transformation method (DTM) to portray the non linear temperature distribution of convective-radiative fin with variable specific heat. With the help of DTM, the nonlinear terms appeared in governing equations are reduced to recurrence relation with non-dimensional terms. A longitudinal fin of constant rectangular profile through which air flows in transverse direction at ambient temperature...
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
Optimization of process parameters during Vibratory welding technique using Taguchi's analysis
Publication date: Available online 27 April 2016 Source:Perspectives in Science Author(s): Pravin Kumar Singh, D. Patel, S.B. Prasad With an aim to improve the mechanical properties of a weld joint, a new concept of vibratory setup has been designed which is capable to stir the molten weld pool before it solidifies during Shielded Metal Arc welding (SMAW) operation. Mechanical vibration having resonance frequency of 300Hz and amplitude of 0.5mm was transferred to the molten weld pool of 6mm thick mild steel butt welded joints during the welding operation. The experimental work was conducted at various ranges of f...
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
Crushed Rock Sand-An economical and ecological alternative to natural sand to optimize concrete mix
Publication date: Available online 27 April 2016 Source:Perspectives in Science Author(s): Sanjay Mundra, P.R. Sindhi, Vinay Chandwani, Ravindra Nagar, Vinay Agrawal The study investigates the use of crushed rock sand as viable alternative to Natural River sand that is being conventionally used as fine aggregate in cement concrete. Various mix designs were developed for different grades of concrete based on IS, ACI and British codes using Natural River sand and crushed rock sand. In each case, the cube compressive strength test, and beam flexure tests were conducted. The results of the study show that, the st...
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
Sensibility of Polyaniline Nanofibers to Biomarker of Benzene recognized as a Carcinogen
Publication date: Available online 27 April 2016 Source:Perspectives in Science Author(s): Sarika Bukkawar, Nisha Sarwade, B.N. Thorat, H. Muthurajan Alarming situation of toxic substances such as benzene and its analogs in the environment and workplaces, making it important to monitor these chemicals and their metabolites in order to evaluate risk hazards and potential problems caused by exposure to toxic compounds. Benzene is omnipresent in usage across industries. International Agency for Research on Cancer (IARC) which is a part of World Health Organization (WHO) has classified Benzene as a human carcinogen...
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
Neuro-Fuzzy Controller for Active Ankle Foot Orthosis
The objective of this paper is to design a neuro fuzzy controller for an AFO. Adaptive Neuro Fuzzy Inference System (ANFIS) is selected after a detailed study of existing neuro-fuzzy architectures. Data of gait pattern are collected with the help of analog gyro sensors. This data is fed to the ANFIS and a fuzzy rule base is created to complete the neuro-fuzzy system which is used to control the gait pattern. Angular velocity and angle of feet served as inputs to the controller and the output is actuation. The results obtained showed sigmoidal membership functions for the various inputs and outputs due to their close resemb...
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
An intutionistic fuzzy optimization approach to vendor selection problem
Publication date: Available online 27 April 2016 Source:Perspectives in Science Author(s): Prabjot Kaur, K.N.L. Rachana Selecting the right vendor is an important business decision made by any organization. The decision involves multiple criteria and if the objectives vary in preference and scope, then nature of decision becomes multiobjective. In this paper a vendor selection problem has been formulated as an intutionistic fuzzy multiobjective optimization where appropriate number of vendors is to be selected and order allocated to them. The multiobjective problem includes three objectives: minimizing the net pric...
Source: Perspectives in Science - April 27, 2016 Category: Science Source Type: research
