There exists increasing competition in the construction industry, forcing contractors to be more cautious in calculating the mark-up for a project. For most contracts, the percent-markup is limited up to a certain range. In a tight bidding environment, the general tendency is even to...

China produces about one-third of the world's supply of tobacco leaf and is the largest consumer of cigarettes. Any discussion of tobacco control in China requires an understanding of the government's role in this sector because China's tobacco production and cigarette marketing are all under...

Using nonlinear stability theory in macroscopic traffic flow model, we proposed a new equilibrium function starting from the existing equilibrium functions. The kinematic wave velocity at jam density yielded by this equilibrium function is consistent with the empirical value, and this...