Solution of one-dimensional moving boundary problem with periodic boundary conditions by variational iteration method

In this paper, the solution of the one dimensional moving boundary problem with periodic boundary conditions is obtained with the help of variational iterational method. By using initial and boundary values, the explicit solutions of the equations have been derived, which accelerate the rapid convergence of the series solution. The method performs extremely well in terms of efficiency and simplicity. The temperature distribution and the position of moving boundary are evaluated and numerical results are presented graphically

Analysis of Key Factors Affecting the Variation of Labour Productivity in Construction Projects

Abstract — Productivity plays an important role in the construction industry. It helps construction industries to be competitive, to achieve goals and to meet the stakeholder and value propositions. The objectives of this research are; one, identifying the key factors affecting the variation of labour productivity in the construction projects in Bangalore, India, second, assessing the impact of the influenced factors on the variation of labour productivity and lastly, providing recommendations to reduce the variation of labour productivity. The above objectives have been achieved through the analysis of 53 questionnaires and the result of this analysis shows that, there are six main groups which have significant impact on the labour productivity variation in the construction projects. They are Manpower group, Manageria

Application of He's Homotopy Perturbation Method to Fractional Diffusion Equations

In this paper, the approximate analytical solutions of a general diffusion equation with fractional time derivative in the presence of a linear external force are obtained with the help of the homotopy perturbation method (HPM). The explicit solutions of the problem for the initial condition as a function of x have been obtained. It reveals that a few iterations are needed to obtain accurate approximate analytical solutions. The numerical calculations are carried out when the initial conditions are like exponential and periodic functions and the results are depicted through graphs. The examples prove that the method is extremely effective due to its simplistic approach and performance