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

(IJCER)

 

Articles

 

Research Article  open access
Some Oscillation Properties of Third Order Linear Neutral Delay Difference Equations
A.George Maria Selvam || M. Paul Loganathan || K.R.Rajkumar
India
Paper Indexed : :03.3005/05070105
International Journal of Computational Engineering Resaerch, Volume 05 ~ Issue 07 (July 2015)

Abstract

In this paper, we establish some sufficient conditions for the oscillation of solutions of third order linear neutral delay difference equations of the form...

Research Article  open access
Stochastic Model to Find the Characteristic Function of Insulinotropic Action of Glucose-Dependent Insulinotropic Hormone Using Compound Poisson Process
Dr. P. Senthil Kumar|| Ms. R. Abirami
India
Paper Indexed : :03.3005/xxxxxx
International Journal of Computational Engineering Resaerch, Volume 05 ~ Issue 07 (July 2015)

Abstract

The purpose of the Study was to evaluate the comparison of insulinotropic actions of exogenous incretin hormones GIP(Glucose-dependent Insulinotropic Hormone) in Nine type-2 diabetic patients and in Nine age- and weight-matched normal subjects. An oral glucose challenge (75g/300ml) was performed in the morning after an overnight fast between the two distinct groups. The GIP response after oral glucose tended to be lower in the type-2 diabetic patients than normal subjects. In this paper, the problem is investigated by valuation of the characteristic equation obtained by applying Laplace transform to the second order delay differential equation represented by a general version of compound Poisson process.

Keywords: GIP, Exogenous Incretin hormone, type-2 diabetic, Poisson process, Brownian motion, type-2diabetic patients.2010 Mathematics Subject Classification: 60G50; 60G51; 60G55

Research Article  open access
Convection interaction in GaAs/LEC growth model
Reza Faiez|| Farzad Najafi|| Yazdan Rezaei
Iran
Paper Indexed : :03.3005/xxxxxx
International Journal of Computational Engineering Resaerch, Volume 05 ~ Issue 07 (July 2015)

Abstract

Fluid flow and heat transport are investigated for the GaAs melt rotating with its cylindrical container in a liquid encapsulated Czochraslki (LEC) growth system in which the flow pattern and temperature distribution in the melt are influenced by coupling of rotationally–driven forces to the thermal convection. The experimentally observed particular shape of the crystallization front was predicted numerically. The convective flow in the melt was studied by focusing on the Rayleigh-Benard and the baroclinic instabilities. Increasing the crucible rotation rate, the dominant convective cell found to pivot by a small angle in the meridional plane around the vorticity vector. This pivoting angle is directly related to the Ekman shear angle.

Keywords: Computer simulation, Convection, Flow pattern, Coriolis forces, Interfaces, LEC growth

Research Article  open access
SEISMIC ANALYSIS OF R.C.C. AND STEEL SILOS
Krishna T. Kharjule || Minakshi B. Jagtap
India
Paper Indexed : :03.3005/xxxxxx
International Journal of Computational Engineering Resaerch, Volume 05 ~ Issue 07 (July 2015)

Abstract

Structures used for storing bulk solids are called bins, bunkers, silos, or tanks. There is no generally accepted definition for these terms, shallow structures containing coal, crushed stone, gravel, and similar materials are called bins or bunkers and tall structures containing materials such as grain, cement and wheat are usually called silos. Elevated silos generally consist of a conical roof, a cylindrical shell and a conical hopper and they could be elevated and supported by frames or reinforced concrete columns. Circular silos (both steel and reinforced concrete) are used to store material in various industries like cement plants (clinkers), power plants( raw coal), oil and gas industry( sulfur pellets) etc.Elevated steel and reinforced concrete circular silo for storage show performance in earthquake reinforced concrete silo stability increases by using shear wall but loss of steel silo in earthquake stability increases using steel panel on opposite side Displacement of structure decreases in case of shear wall panel and stiffness increases.

Keywords: Elevated silos, response spectrum analysis, shear wall, steel plate, time history analysis

Research Article  open access
Social Media Applications for Project Management
Alina Mannanova
Russian
Paper Indexed : :03.3005/xxxxxx
International Journal of Computational Engineering Resaerch, Volume 05 ~ Issue 07 (July 2015)

Abstract

Project communication and collaboration is a crucial activity that makes or breaks a project. Excellent technical skills and intuition may be insufficient to drive performance if not accompanied by appropriate levels of interpersonal interaction within project groups. Evidently that Global participation platforms and social networks like Facebook, LinkedIn and others and a mass of local blogs and web communities are an important source for next generation of project managers. How these new technologies will impact organizations, however, is not entirely clear. Therefore, it represents an important field for information systems research. This paper presents a survey study of the intrusion of social media in project management. We investigate some basic questions such as the possibilities, dangers, and limits (e.g. legal or ethical) of using social media services in project management. Also we analyzed the existed approaches that can serve as a start point for the successful and efficient implementation of such services. Ours results indicate that social media analysis can serve as an improvement tool for project management to reduce the product development time and associated cost through the implementation of social network analysis.

Keywords: Social media, social media network, project management, blog, wiki, information technology
Research Article  open access
Effects of Temperature Dependent Viscosity and Thermal Conductivity in a Mixed Convection Boundary Layer Flow of a Micropolar Fluid towards a Heated Shrinking Sheet in presence of Magnetic Field
Smita Sahu || P. K. Mahanta
India
Paper Indexed : :03.3005/xxxxxx
International Journal of Computational Engineering Resaerch, Volume 05 ~ Issue 07 (July 2015)

Abstract

Effects of temperature dependent viscosity and thermal conductivity in a mixed convection boundary layer flow of a micropolar fluid towards a heated shrinking sheet in presence of magnetic field along with stagnation flow have been studied in the present work. The boundary layer equations are transformed into ordinary differential equations using similarity transformations. The effects of variable viscosity, variable thermal conductivity and the parameters involved in the study on the velocity, micro-rotation and temperature distribution profiles are investigated by solving the governing transformed ordinary differential equations with the help of Runge-Kutta 4th order method with shooting technique. The numerical results are shown graphically and discussed in detail

Keywords: Heat transfer, Magnetic field, Micro polar fluid, Shrinking sheet, Stagnation flow,Thermal conductivity, Variable viscosity