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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
Significance and Need of Computational Analysis and Finite Element Modelling For the Investigation of Thermal Behaviour of Composite Materials
S A Mohan Krishna|| T N Shridhar|| L Krishnamurthy
India
Paper Indexed : : 03.3005/0620105
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 02 (February 2016)

Abstract

Composite materials are the cutting edge materials that possess unrestrained opportunities for advanced material science and development. Thermal studies of composite materials are gaining greater impetus in the present scenario. This will help to comprehend the properties of materials as they change with temperature. The thermal characterization of hybrid composites has been progressively more important in a wide range of applications. The coefficient of thermal expansion, thermal conductivity, specific heat capacity, latent heat and thermal diffusivity are the most important properties of composite materials. Since nearly all composites are used in various temperature ranges, measurement of coefficient of thermal expansion (CTE) and thermal conductivity as a function of temperature is necessary in order to know the behaviour of the material. Thermal characterization and analysis of hybrid composites will depend on the factors that influence on the prominent thermo-physical properties presents a major challenge since they are sensitive to the type of reinforcement and method of manufacture. This research paper emphasizes the significance, need, applications and scope of computational investigation and finite element analysis of composite materials.

Keywords: Composite materials, thermal studies, thermal characterization, coefficient of thermal expansion, thermal conductivity and computational investigation.

Research Article  open access
Simulation of the Hydrodynamic Conditions of a Rotating Cage for Evaluating Corrosion Inhibitors.
Yolitzin Alvarado Medina || Sergio Serna Barquera || Juan Carlos García Castrejón || R. J. Romero
Mexico
Paper Indexed : : 03.3005/0620609
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 02 (February 2016)

Abstract

The Rotating cage technique is used to evaluate corrosion inhibitors. The rotating cage holds 8 coupons containing corrosive liquid, which rotate within it. These coupons have a dynamic that simulates the conditions in a pipe through a corrosive fluid, in this case the material used in pipelines are analyzed oil. A study of the fluid dynamics through the ANSYS software shows that the velocity fields, contours, vectors and speed profiles for symmetric geometries arrangements 2, 4 and 8 embedded specimens with a corrosion inhibitor. The conditions are calculated velocity profiles are standard temperature and solution viscosity of 1.0 cp and 1.5 cp. The density is considered constant of 998 kg / m3 and three angular velocities (920, 460 and 230 rpm) were analyzed. Finally the results of these conditions have been analyzed, yielding values close to zero in the outside walls of the cylinder. The cylinder contain the coupons rotating speeds to ensure turbulence (1) and to analyze the rate of corrosion inhibitor



Research Article  open access
Mining Environment Harmful Gas Detection And Alarm System Using Kiel And Proteus Embedded System Modules
Varun Siripurapu || Vishal Sowrirajan || Venu Arumugam
India
Paper Indexed : : 03.3005/062010012
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 02 (February 2016)

Abstract

The main idea behind this paper is to propose a system which can provide a safe environment for miners using wireless communication, alarming system . Sensors are employed within the helmets of the miners to detect the temperature and intensity of the harmful gas levels. If the temperature breaches the 40 degree Celsius mark or if the CO intensity level exceeds 120 ppm ,here both the values of temperature and CO concentration value is calibrated to the potentiometer used (200). If these values exceed 200 mark an alarming signal is set on ,which alerts the miners and also gives information about these values to the base station via RF transmitter . In this paper we are introducing the RF transmitter and receiver technology instead of using other means of communication .Keywords : temperature, kiel ,proteus ,microcontroller.

Keywords: temperature, kiel ,proteus ,microcontroller.

Research Article  open access
A Comparative Analysis of Additional Overhead Imposed by Internet Protocol Security (IPsec) on IPv4 and IPv6 Enabled Communication
Muhammed NuraYusuf || Badamasi Imam Ya'u
Nigeria
Paper Indexed : : 03.3005/062013019
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 02 (February 2016)

Abstract

IPSec, an Internet layer three (3)-security protocol suite is often characterising with introducing an additional space and processing overhead when implemented on a network for secured communication using either internet protocol version 4 or 6; IPv4 or IPv6. The use of Internet protocol security (IPSec) on IPv4 is an alternative that offers solutions and addresses the security vulnerabilities in network layer of the open system interconnect (OSI) and transmission control protocol/internet protocol (TCP/IP) protocol stack. In IPv6, IPSec is one among many other features added to the earlier Internet protocol to enhance efficiency and security. This paper, set as its objective to reports on the impact of processing and space overhead introduced by IPSec on both IPv4 and IPv6 in relation to packet end-to-end delay based on different IPSec transformations with different authentication and encryption algorithms deployed in different scenarios simulated using NS2. The experiment result reveals that the cost of IPSec added overhead is relatively small when smaller packet sizes are involved for both protocols in comparison with large packet sizes that were IPSec protected with the same configuration as the smaller packet, unless in the cases whereby the packet was very large which has to be fragmented. This paper can therefore, serve as a guide for network administrators to trade up between processing cost and larger address space specifically for transmission involving larger IP packets.

Keywords:end-to-end delay, Internet Protocols,IP Security, Overhead, Packets, Processing, Space,

Research Article  open access
Learner Ontological Model for Intelligent Virtual Collaborative Learning Environment
Mr.Nilay M. Vaidya || Dr.Priti S. Sajja
India
Paper Indexed : : 03.3005/062020022
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 02 (February 2016)

Abstract

An enacting approach to intelligent virtual collaborative learning model is explored through the lens of critical ontology. This ontological model enables to reuse of the domain knowledge and to make the knowledge explicitly available to the agent which uses the operational knowledge in collaborative learning environment. This ontological model used by the agent to identify the preliminary competency level of the user. This environment offers personalized education to each learner in accordance with his/her learning preferences, and learning capabilities. Here the factors considered to identify the learning capability taken are as demographic profile, age, family profile, basic educational qualification and basic competency scale. The conception of heuristics is used by the agent to determine the effectiveness of the learner by referring the different parameters of the learner available in the ontological model.To help getting over this, the paper describes the experience on using an ontological model for collaborative learning torelate and integrate the history of the learner by maintaining the log of learner in collaborative learning environment that will be used by the Multi-Objective Grey Situation Decision Making Theory to infer the understanding level of user and produces the conditional content to the user

Keywords:Collaborative Learning, e-learning, Heuristics, Multi-Objective Grey Situation Decision Making Theory, Ontology

Research Article  open access
Comparison of Traditional-Training on the open E-Training Platforms and Traditional Training (Case Study: Udemy Platform 2016)
Dr.Huthaifa A.A. Ellatif || SafiyaNajehAlbadry || Selma Ahmed Ibrahim
Sudan
Paper Indexed : : 03.3005/062023034
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 02 (February 2016)

Abstract

Open e-training Platform s play an important role as one of the tools that help people develop their skills and acquire new knowledge and expertise in various fields, recently the trend has increased towards the virtual training and it became a way to reach more of the trainees who aspire to get better educational quality of the training programs which are held on the Internet without the temporal and spatial limitations and away from the traditional training, as the time and cost stand as a significant obstacle before the ambitions of individuals. The paper discussed the problems that hinder the trainees of full understanding of the training courses on the open e-training Platform s compared to traditional training, and see how they benefit and their orientation towards it, this study followed the analytical descriptive method through the distribution of a questionnaire to a random sample of the technical community members. The questionnaire results indicated a preference to use online training instead of traditional training, were the main reasons is the lack of temporal and spatial constraints.

Keywords:Training, Open E-training Educational Platform, Open E-training Training, Traditional Training, Udemy Platform.

Research Article  open access
Based On Oil Analysis Applicable To Transportation Fleets Using A Viscosimeter
Israel Ibarra Solis || Juan Carlos Rodriguez Sierra || Jesus E. Corona Andrade || Raúl A. López Gómez || Ubaldo Gil Cruz || Luis G. Bermudez Rodriguez
Mexico
Paper Indexed : : 03.3005/062035042
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 02 (February 2016)

Abstract

At the present paper we try to explain the analysis techniques use in engine oil for the lubricating in a maintenance period of a city bus (Mercedes Benz Boxer 40), in a transportation company. This experiment is done to estimate the optimal time for the oil change. using devices such as the rotational viscometer and the atomic absorption spectrometer as they can detect the incipient form when the oil loses its lubricating properties, and therefore cannot protect the mechanical components of diesel engines such these trucks. Timely detection of lost property in the oil, allows us taking preventive plan maintenance for the truck and subsequently these methodologies could be use in a fleet.

Keywords:Atomic absorption spectrometry, rotational viscometer, lubricating oils, maintenance, predictive velocity rate.

Research Article  open access
Stabilization of soil using Rice Husk Ash
Rathan Raj R || Banupriya S || Dharani R
India
Paper Indexed : : 03.3005/062043050
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 02 (February 2016)

Abstract

In today scenario, lack of stable ground for development of infrastructures is very common. In view of this, construction of buildings on unsuitable ground is unavoidable and making a suitable ground before constructions is real challenging issue for Geotechnical Engineers. To overcome the difficulties experienced with problematic soil in geotechnical applications on one side and safe disposal of solid wastes on the other side, an attempt is made in this investigation to explore the possibilities of utilizing solid wastes to improve the engineering behavior of problematic soil. In this, in this present investigation the type of solid waste namely Rice Husk Ash for stabilization is selected to study the effects of same on the index and engineering characteristics of problematic soil. The rice husk ash is mixed with soil in various proportions like 5%, 10%, 20%, 30%, 40%, 50% and 80%. The various tests were conducted on these proportions and optimized proportion is arrived.

Keywords:Stabilization, Alluvial soil, clay, Rice husk ash, Index properties, Shear strength and California bearing ratio










Articles

 

Research Article  open access
Chronic diseases based on cloud computing platform (hypertension) intelligent control system design and analysis
Youliang Huang || Fengying Guo || Xing Zhai || Sajid Ali || Renquan Liu
China
Paper Indexed : : 03.3005/062020104
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 02 (February 2016)

Abstract

Chronic diseases seriously affecting people's lives and health in China, as one of the major chronic diseases of hypertension, incidence is increasing constantly endangering people's health and life. Treatment of high blood pressure, prevent complications and complications to be an important task of the medical profession. With the development of information technology and medicine, change the passive role in diagnosis and treatment of patients in the traditional mode, making full use of advanced information technology to achieve real-time monitoring of the disease is possible. Cloud computing platforms of chronic diseases is discussed in this paper (high blood pressure) meaning of intelligent control system, analysis of chronic diseases (hypertension) construction of an intelligent control system demonstrates the feasibility of the system, chronic diseases (hypertension) new model of prevention and control information, realize full use of limited medical resources and maximizing the social benefit.

Keywords:cloud computing; hypertension; internet of things; intelligent control; telemedicine

 

Research Article  open access
Sidelobe reduction in Synthetic Aperture Radar (SAR) using Multi Stages of Linear Frequency Modulated (MS-LFM) pulse
Z. M. Fawzy || A. A. Shaalan || M. M. Fouad ||K. F.A. Hussein
Egypt
Paper Indexed : : 03.3005/0620205011
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 02 (February 2016)

Abstract

A commonly used Synthetic Aperture Radar (SAR) pulse is the Linear Frequency Modulated (LFM) pulse. It has the advantage of greater bandwidth while keeping the pulse duration short and the envelope constant. However, the matched filter output of this signal contains range sidelobes with the first sidelobe at a level of -13.2 dB to the peak of the main lobe. In this paper, the linear frequency modulation (LFM) waveform and matched filter response are introduced. The principle of Multi Stages of Linear Frequency Modulation (MS-LFM) is also discussed. Simulation results of the proposed MS-LFM signal are presented, where sidelobe level reduction of more than -20 dB can be achieved.

Keywords:Pulse Compression, Matched Filter, SideLobe Reduction, Synthetic Aperture Radar (SAR), Linear Frequency Modulation (LFM), Multi Stages of Linear Frequency Modulation (MS-LFM).

Research Article  open access
Dimension of Land Use Conversion in Ado-Ekiti Metropolis
Adepoju A.S || Adepoju A.G
Ekiti State
Paper Indexed : : 03.3005/06202012021
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 02 (February 2016)

Abstract

Over the years land use has ever been dynamics due to many factors such as economics, environmental, socio- political, legal among others. In Ado-Ekiti metropolis, due to urbanization the quantum of developable land available continue to decrease daily, hence the high rate of land use conversion. This paper examined land use pattern in Ado- Ekiti and then identified the direction of land use conversion in the study area. Primary data were collected with questionnaire administered on 76 individual property owners who have their properties converted. It was discovered that all the identified properties were originally meant for residential use. The results showed that land use conversion from residential-commercial (68%) was identified followed by residential-institutional (16%), residential-recreational (12%), while residential-others (4%). This study concluded that going by the rate at which residential properties are been converted to other uses in Ado-Ekiti metropolis in the recent time, may lead to serious housing shortage. The implication of this is that house rents will continue to rise to the extent that, low and even medium income earners may not be able to afford accommodation within the study area, unless urgent government intervention.

Keywords: Land use, Conversion, Metropolis

Research Article  open access
Fault Vertical Segmentation Growth and Determination of Oil Source Fault in Fuyang Oil Layer in Sanzhao Depression
Li Yilin || Yu Tianrui
China
Paper Indexed : : 03.3005/xxxxxxx
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 02 (February 2016)

Abstract

It is proved that fault possesses a typical characterisc of vertical segmentation growth if there is competent difference according to field observation,typical seismic analysis and physical modeling. Fault evolution can be divided into three stages by competent difference: formation of lower fault,segmentation of upper and lower fault and formation of thoroughgoing fault. Taking Sanzhao depression as an example,rock mechanical properties and fault−related fold theories prove that there widely exists faults in sandstone layer of Fuyang oil layer, whose propagation is stopped by mudstone in Qingshankou formation member, leading to the formation of fault vertical segmentation growth. Combining reservoir careful anatomy, it can be indicated that the main oil source faults of the "reversed" migration in Fuyang oil layer must keep active in hydrocarbon migration and accumulation period connect oil source and reservoirs, and segment vertically growth in Sanzhao depression.

Keywords: Sanzhao depression; segmentation growth; "reversed" migration; oil source fault; Fuyang oil layer

Research Article  open access
Firefly Algorithm based Optimal Reactive Power Flow
G. K. Moorthy || R. K. Santhi || S. M. Alamelunachiappan
INDIA
Paper Indexed : : 03.3005/xxxxxx
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 02 (February 2016)

Abstract

The optimal reactive power flow (ORPF) helps to effectively utilize the existing reactive power sources for minimizing the network loss. Firefly Algorithm (FA), inspired by social flashing behavior of fireflies, is one of the evolutionary computing models for solving multimodal optimization problems. This paper attempts to obtain global best solution of ORPF using FA. The results of IEEE 57 bus system are presented to demonstrate its performance.

Keywords:optimal reactive power flow, firefly algorithm.

Research Article  open access
Cloud Computing Services and Its Applications in Arab Environment
Dr.Huthaifa A.A. Ellatif
Sudan
Paper Indexed : : 03.3005/xxxxxx
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 02 (February 2016)

Abstract

Thispaper aimsto introduce theconcept ofCloud Computing and to identify itscomponentsand characteristicsas well asfinding its advantagesand types, as well as thesecurityof Cloud Computing forcustomers, and alsothe paper will discussthe challengesthat may face application ofCloud Computing in the Arabenvironmentand futuretrendsofCloud Computing in application the Arabenvironment.

Keywords:Cloud computing, Cloud Computing applications,applicationsin Arabenvironment.

Research Article  open access
Energy-Mass-Size balance model for dynamic control of a wet open circuit grinding mill: Part I - Model development
Augustine B. Makokha
Kenya
Paper Indexed : : 03.3005/xxxxxx
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 02 (February 2016)

Abstract

Majority of traditional mill simulation models have been successfully applied in mill circuit design and optimization. However, only limited success has been reported with respect to dynamic mill control. This is partly attributable to the fact that these models are based on steady state analysis and fail to account for energy balance inside the mill. In this paper, an integrated model has been developed based on energy-mass-size balance for dynamic simulation of open circuit wet grinding mills under MATLAB environment. The model combines information from energy-mass balance, material breakage mechanisms, fundamental material properties and the milling conditions in a simple and clear representation of the physics and thermodynamics of the wet milling process, thereby addressing the limitations of traditional model formulations. Simulation test results depicting the dynamic response of the model are presented in Part II. Successful validation of this modelling approach would go alongside improving the current methods of continuous control of grinding mills.

Keywords:Energy balance, Modelling, Simulation, Mixing, Grinding mill, Mill power, Mill temperature

Research Article  open access
Energy-Mass-Size balance model for dynamic control of a wet open circuit grinding mill: Part II – Simulation tests
Augustine B. Makokha
Kenya
Paper Indexed : : 03.3005/xxxxxx
International Journal of Computational Engineering Resaerch, Volume 06 ~ Issue 02 (February 2016)

Abstract

A simple dynamic model combining energy balance and population balance has been utilized to assess the dynamic response of the mill to changes in mill operational parameters for purpose of establishing a predictive control tool. The manipulated parameters are feed rate, feed % solids and ore hardness index while the response variables are mill power draw, mill temperature and mill product size distribution (d80). The results demonstrate a good dynamic response of the model to variations in mill operational parameters. Thus, the model could be integrated in the overall mill control scheme to assist mill operators and process engineers in timely decisions with regard to mill control.

Keywords:Energy balance, Dynamic control, Grinding mill, Mixing, Simulation, Mill power, Mill temperature