A prototype of hydraulic free piston engine has been developed to achieve efficient energy conversion directly from chemical energy of fuel to hydraulic energy. In stable running condition, in order to verify the features of this kind of engine, the piston dynamics, combustion process and...

In order to solve the problems associated with rapid combustion process under high engine speeds, benzyl azides were chosen as a fuel additive blended with diesel fuel. The physical and chemical properties of the fuel blends were analyzed. A single-cylinder engine was built and the in-cylinder...

Many countries have achieved moderate to dramatic growth during the last few decades, and the world-widely continued economic growth results in increased wealth and deteriorated environment. The relationship between economic growth and environmental quality has received great attention in...

Purpose: Previous researchers have studied push and pull contracts in the single product scenario, although in practice, supply chains often produce and sell multiple products. In a multiproduct scenario, the sales of a product will be influenced by its complements or substitutes, which...

We address the question as to what extent individuals, when given information in marketing polls on the decisions made by the previous Nr individuals questioned, are likely to change their original choices. The processes can be formulated in terms of a Cost function equivalent to a Hamiltonian,...