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Frequency: 12 issues per year
ISSN: 2250–3005 (online version)
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International Journal of Computational Engineering Research

(IJCER)

 

Articles

 

Research Article  open access
Furnish an Index Using the Works of Tree Structures
Chiranjib Mukherjee ,Dr.Gyan Mukherjee
India
Paper Indexed : : 03.3005/41001011
International Journal of Computational Engineering Resaerch 2014, Volume 4 ~ Issue 10 (October 2014)

Abstract

We consider two tree-based indexing schemes that are widely used in practical systems as the basis for both primary and secondary key indexing. We define B-tree and its features, advantages, disadvantages of B-tree. The difference between B+-tree and B-tree has also been discussed. We show the algorithm, examples and figures in the context of B+-tree.

Keywords:Indexing Schemes, Primary key, Secondary key, B-tree, B+-tree.

 

Research Article  open access
Application of Microcontroller in Transmitter Section of Wireless System
Dr.M.J.Hedau
India
Paper Indexed : : 03.3005/41012015
International Journal of Computational Engineering Resaerch 2014, Volume 4 ~ Issue 10 (October 2014)

Abstract

The present paper describes how the microcontroller works in the transmitter section of wireless system. In last 40 years a silent but rapid revolution as far as electronics computing communication and control are concerned. Proof of this statement would be available in mobile handset, MP 3 player, automatic washing machine, microwave oven, portable digital blood pressure measurement and many more medical instruments, billing system in STD phone etc. This list is enomorous and growing exponteally. All these are possible because of usage of Microcontroller and having a PC which involves from microprocessor. Temperature is certainly among the most commonly measured parameters in industry, science, and academia. Recently, the growth of wireless instrumentation technology, along with some clever innovations, has provided new ways to apply temperature measurement sensors combined with personal computers to collect, tabulate, and analyze the data obtained

Keywords:Microcontroller, Temperature controller, CAN, flags, Buffer,ADC,Step response

 

Research Article  open access
Bi-objective Optimization Apply to Environment a land Economic Dispatch Problem Using the Method of Corridor Observations
Salomé Ndjakomo Essiane, StèvePerabi Ngoffe, AdolpheMoukengueImano, GrégoireAbessolo Ondoa
Cameroon
Paper Indexed : : 03.3005/41016023
International Journal of Computational Engineering Resaerch 2014, Volume 4 ~ Issue 10 (October 2014)

Abstract

This paper presents a proposed and applicable optimization algorithm based on the evolutionary algorithm to solve an environemental and economic Dispatch (EED) problem. This problem is seen like a bi-objective optimization problem where fuel cost and gaz emission are objectives .in this method, the optimal Pareto front is found using the concept of corridor observation and the best compromised solution is obtained by fuzzy logic. The feasibility of this method is demonstrated using power systems with three generation units, and it is compared with the other evolutionary methods of Optimization Toolbox of Matlab in terms of solution quality and CPU time. The simulated results showed that the proposed method is indeed capable of obtaining higher quality solutions in shorter computational time compared to other evolutionary methods. In addition the other advantage is that our approach solve in the same time a unit commitment problem and it can used with n-generation units.

Keywords:bi-objective,corridor observations, Evolutionary algorithm, fuel cost, gaz emission, optimal PARETO front, optimization

 

Research Article  open access
On The Derivatives and Partial Derivatives of A Certain Generalized Hyper geometric Function
Yashwant Singh, Nandavasanthnadiger Kulkarni
Cameroon
Paper Indexed : : 03.3005/xxxxx
International Journal of Computational Engineering Resaerch 2014, Volume 4 ~ Issue 10 (October 2014)

Abstract

In this paper, methods involving derivatives and the Mellin transformation are employed in obtaining finite summations for the H -function of two variables and certain special partial derivatives for the H -function of two variables with respect to parameters.

Keywords:Derivatives, Partial derivatives, H -function of two variables, Mellin transformation. (2000 Mathematics Subject Classification: 33C99)

 

Research Article  open access
Design and Optimization of Axial Flow Compressor
Koduru. Srinivas, Kandula. Deepthi, K.N.D.Malleswara Rao
INDIA
Paper Indexed : : 03.3005/xxxxx
International Journal of Computational Engineering Resaerch 2014, Volume 4 ~ Issue 10 (October 2014)

Abstract

An axial flow compressor is one in which the flow enters the compressor in an axial direction (parallel with the axis of rotation), and exits from the gas turbine, also in an axial direction. The axial-flow compressor compresses its working fluid by first accelerating the fluid and then diffusing it to obtain a pressure increase. In an axial flow compressor, air passes from one stage to the next, each stage raising the pressure slightly. The energy level of air or gas flowing through it is increased by the action of the rotor blades which exert a torque on the fluid which is supplied by an electric motor or a steam or a gas turbine. In this thesis, an axial flow compressor is designed and modeled in 3D modeling software Pro/Engineer. The present design has 30 blades, in this thesis it is replaced with 20 blades and 12 blades. The present used material is Chromium Steel; it is replaced with Titanium alloy and Nickel alloy. Structural analysis is done on the compressor models to verify the strength of the compressor. CFD analysis is done to verify the flow of air

Keywords:Axial Flow, Ansys, Compressor, CFD, Gas Turbine, PRO-E)

 

Research Article  open access
Design & Optimization of a Rim Using Finite Element Analysis
Turaka.venkateswara Rao , Kandula. Deepthi , K.N.D.Malleswara Rao
INDIA
Paper Indexed : : 03.3005/xxxxx
International Journal of Computational Engineering Resaerch 2014, Volume 4 ~ Issue 10 (October 2014)

Abstract

Rims are critical components of your vehicle wheel. The wheel is a device that enables efficient movement of an object across a surface where there is a force pressing the object to the surface. There are so many kinds of wheels are created from the ancient age for the today's world there are two kinds of wheels mostly used. In the present every vehicle was designed with alloy wheels which are more efficient than spokes wheels. In this project we designed the rim from the existing dimensions by modeling software. There are the models are prepared in this project one is actual one which is used in normal/regular vehicles, second one is modified one which is used in latest vehicles and the last one is the modification of latest rim. The three rims are analyzed in Ansys by using 4 different materials which are Al alloy which is a regular material and another three are Mg alloy, Zn alloy & Steel alloy. The results were compared and the best material with best model was proposed to the company.

Keywords:Ansys, Al alloy, Steel alloy, Spokes wheels.)

 

Research Article  open access
Scale Invariant Feature Transform Based Face Recognition from a Single Sample per Person
R.Pavithra, Prof. A. Usha Ruby , Dr. J. George Chellin Chandran
India
Paper Indexed : : 03.3005/xxxxx
International Journal of Computational Engineering Resaerch 2014, Volume 4 ~ Issue 10 (October 2014)

Abstract

The technological growth has a serious impact on security which has its own significance. The core objective of this project is to extract the facial features using the local appearance based method for the accurate face identification with single sample per class .The face biometric based person identification plays a major role in wide range of applications such as Airport security, Driver's license, Passport, Voting System, Surveillance. This project presents face recognition based on granular computing and robust feature extraction using Scale Invariant Feature Transform (SIFT) approach. The Median filter is used to extract the hybrid features and the pyramids are generated after the face granulation. Then, DoG pyramid will be formed from successive iterations of Gaussian images. By this granulation, facial features are segregated at different resolutions to provide edge information, noise, smoothness and blurriness present in a face image. In feature extraction stage, SIFT descriptor utilized to assign the intersecting points which are invariant to natural distortions. This feature is useful to distinguish the maximum number of samples accurately and it is matched with already stored original face samples for identification. The simulated results will be shown used granulation and feature descriptors has better discriminatory power and recognition accuracy in the process of recognizing different facial appearance.

Keywords:Single sample per class, Median Filter, Dog pyramid, Scale Invariant Feature Transform

 

Research Article  open access
Modeling Sediment Accumulation at Kenyir Reservoir Using GSTARS3
Manal M.A. Albayati
Malaysia
Paper Indexed : : 03.3005/xxxxx
International Journal of Computational Engineering Resaerch 2014, Volume 4 ~ Issue 10 (October 2014)

Abstract

An attempt was made in this study to predict the Kenyir reservoir sedimentation deposition processes at Terengganu, Malaysia. The purpose of this study is to determine the amount and location of sediment accumulated since the start of the Kenyir dam operation. The assessment was undertaken using GSTARS3 sediment transport model, which was integrated with GIS to display the output as sequences of grids. ArcView was used to convert the GSTARS3 model output to Arc View GIS grid format. The study successfully integrated GSTARS3 and ArcView models. The study demonstrates the ability of the adopted methodology to visualize the accumulated sedimentation during the operation period of the Kenyir dam.

Keywords:Modeling, Sediment deposition, Reservoir, GSTARS3, ArcView.

 

Research Article  open access
Impact of Misalignments on Root Stresses of Hypoid Gear Sets
Avutu. Madhusudhana reddy, Gowthamtham reddy. Vudumula
INDIA
Paper Indexed : : 03.3005/xxxxx
International Journal of Computational Engineering Resaerch 2014, Volume 4 ~ Issue 10 (October 2014)

Abstract

The hypoid gears are a subtype of bevel gears. Hypoid gears are similar in appearance to spiral bevel gears. They differ from spiral-bevel gears in that the axis of the pinion is offset from the axis of the gear. On observation the hypoid gear seems to be similar in appearance to the helical bevel gears. The main difference being that the planes of the input and the output gears are different . This allows for more efficient intermeshing of the pinion and driven gear. Since the contact of the teeth is gradual, the hypoid gear is silent in operation as compared to the spur gears.These gears are usually used in industrial and automotive application and hence the material used is a metal like stainless steel. A major application of hypoid gears is in car differentials where the axes of engine and crown wheel are in different planes.In this thesis, the impact of misalignments on root stresses of hypoid gear sets is investigated theoretically with FEA. An experimental set-up designed to allow operation of a hypoid gear pair under loaded quasi-static conditions with various types of tightly controlled misalignments is introduced. These experimental data is collected from journal paper. Structural analysis is done to verify the strength of the hypoid gear for alignment and misalignment.Software for modeling is Pro/Engineer and for analysis is Cosmos

Keywords:Cosmos, FEA , Hypoid gears , PRO-E, Structural Analysis

 

Research Article  open access
Analysis of Serial Pinned Joints in Composite Materials
Kodali. Vikas, Kandula. Deepthi
INDIA
Paper Indexed : : 03.3005/xxxxx
International Journal of Computational Engineering Resaerch 2014, Volume 4 ~ Issue 10 (October 2014)

Abstract

Pin jointed structures are more regularly used because they are simple to design, relatively inexpensive to make, easy to construct, and easy to modify. A pin joint is a solid cylinder-shaped device, similar to a bolt, which is used to connect objects at the joint area. The pin can only transmit a force and has no ability to resist rotation. They can be 'fixed' structures such as frames, or they can be structures that move, more normally referred to as mechanisms. In practice pin jointed structures often use bolts which are tightened and therefore they can resist rotation to a certain extent. This type of joint connection allows each object to rotate at the point of joint connection. Most mechanical devices that require bending or opening typically use a pin joint. These joints can be welded solid or allow movement between the two connected objects. In this thesis, analysis is done on the E Glass and S2 Glass epoxy composite plate with two serial holes by varying distance from the free edge of the plate to the diameter of the first hole and width of the specimen to the diameter of the holes and also and the distance between center of two holes-to-hole diameter. Structural and Fatigue analysis are done using Cosmos.

Keywords:Cosmos, Fatigue, PRO-E,Structural Analysis, Pin joints

 

Research Article  open access
Reversible Data Hiding in Encrypted color images by Reserving Room before Encryption with LSB Method
Sabeena O.M, Rosna P. Haroon
INDIA
Paper Indexed : : 03.3005/xxxxx
International Journal of Computational Engineering Resaerch 2014, Volume 4 ~ Issue 10 (October 2014)

Abstract

Reversible data hiding is the technique in which data in the cover image reversibly can retrieve after the extraction of hidden data in it. The technique provides the secrecy for a data, and also for its cover image. Ancestor methods of reversible data hiding were vacates room for data hiding after encryption, which leads to some errors at the time of data extraction and image recovery. Here describes a novel method of reversible data hiding in which, Reserving room before encryption in images, so that image extraction is subjected to free of errors. Here we are proposing an LSB plane method for the data hiding, which will result more space for embedded secret data. Moreover the usage of colour images as cover images will helps to store more data in different channels.

Keywords:reversible data hiding, LSB plane method