New product development is a crucial task for modern corporations. Facing an increasingly competitive and dynamic market, the ability to continuously identify customer needs and create products that meet such needs is essential to business success. As a result, researchers from fields such as management, marketing, industrial design and engineering have devoted their attention to new product de...

The variational iteration method(VIM) was extended to find approximate solutions of fractional chemical engineering equations. The Lagrange multipliers of the VIM were not identified explicitly. In this paper we improve the VIM by using concept of fixed point iteration method. Then this method was implemented for solving system of the time fractional chemical engineering equations. The ob...