For the problem of homogeneity of variances, a new generalized test variable is given and the generalized p-value based on the test variable is derived. The proposed generalized p-value is proved to have exact frequency property, and it is also invariant under the group of scale transformation.

Areas of water shortage comprise many smaller sub-areas into which water is transported from external sources. Fairness and efficiency of distribution are overriding principles. Each local area requires adequate water for community and ecological purposes as well as a supply sufficient to...

Revenue management for transportation infrastructure projects is challenging due to the huge amount of capital involved and the deep uncertainty inherent in long service lifetimes. Public-private partnerships (PPPs) provide a way for the public sector to acquire financial resources and transfer...

Antioxidation responses of maize roots and leaves to water deficit and rewatering under partial root-zone irrigation (PRI) were investigated using a pot system. Plants were cultured using three irrigation methods, i.e. conventional irrigation (CI), alternate PRI (APRI) and fixed PRI (FPRI) with...

The paper investigates the productivity effects of national road infrastructure investment in Western Europe.The study makes use of newly available OECD/ECMT data showing a secular decline of productivity growth and of transport infrastructure investment. Infrastructure availability is modelled...