International Journal of Advances in Engineering Sciences
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159 research outputs found
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F E Analysis of SCF, Deflection in Isotropic and Orthotropic Rectangular Plates with a Circular Hole near the Edge of the Plate Under Transverse Loading
No full textAbstract: The study of stress concentration factor ( S C F ) for the rectangular plate with eccentric circular hole under transverse load is analyzed by numerically with the help of Finite Element Method. The material used for the plate is isotropic and orthotropic in nature, from this analysis author found that the variation in the SCF to a/c ratio (a/c ratio, where a is radius of circle and c is distance between longer edge of the plate to center of the circle) in the rang of 0.01 to 0.9. In this paper four boundary condition are applied and SCF was calculated. The results are shown in graphically and also discussed variation of SCF with the position of the hole. The finite element formulation is carried out by using the software ANSYS. The deflection behavior of a rectangular plate under transverse load is also presented in this paper. Key words: Stress Concentration Factor; Finite Element Analysis; Eccentric Circular Hole; Deflection; Transverse Load
Penalty Evaluation in Deregulated Power System Using UI Tariff
No full textThroughout the world, power industries are moving rapidly from regulated conventional set up to a deregulated environment. However still many power systems experienced energy shortage problems and caused heavy losses for industries and inconvenience of social life and India is one of them. However the Unscheduled Mechanism (UI) enforced in the interstate sale-purchase of power has succeeded in transforming the fabric of the Indian power system operation in a manner unparallel. In this paper we propose a new methodology for penalty evaluation in deregulated power system using UI tariff. The scheme is linked to Availability based tariff which is prevailing in India since 2002.Moreover we have drawn a flow chart depicting how this method could be beneficial
A NOVEL DESIGN AND ANALYSIS OF 8-TAP FILTER
No full textThis paper presents the Novel design of 8-TAP FIR digital filters. Processing of a signal in digitized form is better than in its analog form ,the folding transformation is used to systematically determine the control circuits in DSP architectures where multiple algorithm operations are time multiplexed to a single functional unit. By executing multiple algorithm operations on a single functional unit, the number of functional units in the implementation is reduced, resulting in a integrated circuit with low silicon area.The FIR filter is fabricated using SMIC 0.13um CMOS technology, and operates at 1.3GHz under the condition of 1.2Vsupply voltage. Area savings are achieved even when conversion overhead is taken into consideration, and the FIR filter requires 26.8% smaller area in the same condition
Software for Measurement in Real-Time of Transmission Line Fields
No full textThe objective of this paper is to contribute with theresearches on the mapping of the electromagnetic fields oftransmission lines using the Charge Simulation Method andMATLAB to develop a software that is capable of measure the electromagnetic fields of transmission lines. The software hasseveral different analyses for the electromagnetic fields, whichinclude the electromagnetic graphs, the 3-D graph for the electricfield and the 3-D graph for the magnetic field, which arepresented in this paper. The user can analyze the fields togetheror separated, for more specific analysis. An embedded systemwas coupled to the software, in order to provide the data for thefunctioning of it, getting of the voltage and current the valuesprovided to the load. The importance of developing software likethat is that it gives to students and researchers a very powerfultool for the simulation of electromagnetic fields. The results showcoherent to others measurement
Throughput Improvement Of Cognitive Radio Network Using Orthogonal Frequency Division Multiplexing
No full textThis paper looks ahead at the future of wireless communications systems that can combine their resources and capabilities in order to enhance their overall ability to collect and convey information. Cognitive network teamwork has significant potential in the development of new public-safety, entertainment and military applications. Specifically, descriptions of the principles of formation, coordination and management of an effective cognitive network , in this paper, investigation is done on the transmission in cognitive radio network using orthogonal frequency division multiplexing (OFDM). The relevant communication parameters are optimized in dynamic wireless channel environment. Firstly, variable representation of the transmission parameters is done that can be controlled by the system, several objective function in the different layers must also be determined to define how the cognitive radio should operate, then implementation of block turbo code modulation in orthogonal frequency division multiplexing to improve throughput of cognitive radio network is done and simulate on cognitive radio cognitive network (CRCN) simulator
An efficient soft clustering algorithm for web page prediction
No full textClustering is the process of organizing objects into groups whose members are similar in some way. It can be considered the most important unsupervised learning problem which deals with finding a structure in a collection of unlabeled data. A cluster is therefore a collection of objects which are similar between them and are dissimilar to the objects belonging to other clusters. Uniform resource locator (URL) is an addressing scheme used by World Wide Web browsers to locate resources on the Internet. The resource can be any type of file stored on a server, such as a Web page, a text file, a graphics file, or an application program. A web page is a document or information resource that is suitable for the World Wide Web and can be accessed through a web browser. When web pages are stored in a common directory of a web server, they become a website. A website will typically contain a group of web pages that are linked together, or have some other coherent method of navigation. These web pages are linked together using URLs. A web page may be static or dynamic that is it may contain static URLs or dynamic URLs. Out of these URLs some may be accessed very frequently and some may not. Thus the number of URLs in a web page is clustered together based on some similarity measure to get a cluster of most probable URLs to be accessed in near future. This paper explains such an algorithm that clusters URLs present in a web page using soft clustering concept
An Explore View of Web Caching Techniques
No full textMost popular Web sites are suffering from severe congestion, since they are getting millions of requests per day in coincidence or not with special events. These sites are overwhelmed by the offered load and the Web service providers have to deal with peak demands that are much higher than the average load supported by their site. So in this paper, we explore the significance of web caching techniques and various supportable architectures used. In this we also discuss an approach based on grouping of proxy server into cell that is dealt the problems of Congestion and scalability. This results in higher hit ratio of caches, with lesser latency delay for requested pages
Effect of Different Electrodes and Process Variables On Material Removal Rate and Surface Roughness in Electrochemical Machining
No full textStudies on Material removal rate (MRR) and surface roughness (Ra) are of greatest importance in ECM, since it is one of the determining factors in the process decisions. This research deals that to investigate the effect of different electrodes and process variables on the material removal rate and surface roughness of electrochemical machining (ECM) on EN8 alloy steel component.In this experimental study, Design of Experiment Method has been employed to find out the effects of different electrodes (copper and aluminium) and process variables (feed rate, flow rate of the electrolyte and voltage) on material removal rate and surface roughness. ANOVA and Regression analysis is performed to estimate the characteristics in terms of the values of the machining parameters by the use of DOE++ software
Chemistry of Upper Ionosphere-A Study
No full textIn the upper ionosphere (above about 200 or 250 km) electron and ion concentrations are not governed solely by considerations of photochemical equilibrium, because the rates of diffusion of ions and electrons are comparable with the rates of chemical loss processes. Thus the position of F2 peak is governed by the competition between chemical recombination and diffusio
Maintainability Prediction for Object Oriented Software
No full textSoftware maintainability is a measure of the ease with which a software system or component can be modified to correct faults, improve performance or other attributes, or adapt to a changed environment. The time spent and effort required for keeping software operational consumes about 40-70% of cost of entire life cycle. This study proposes a integrated measure for object oriented software based on two parameter - Class Coupling and Cyclomatic Complexity using fuzzy logic. This study also includes empirical data of maintenance time of classes which has been used to validate the proposed approach