Metal culverts or pipes used in cross-drains along or across the Arkansas highway system are susceptible to corrode over time.Catastrophic incidents Rutin such as a complete washout of metal culverts along with roadway can be prevented if proper metals can be selected during the construction project.At present, the Arkansas Department of Transporta

Standard economic models predict that a ceteris paribus increase in the overall productivity results in an increased production if the economy departs from an equilibrium state.We show Hose that this result is valid under specific conditions In other cases, even if the initial conditions of an economic system are so that the economy converges into

During the Soviet Virgin Lands Campaign, approximately 23 million hectares (Mha) of Eurasian steppe grassland were converted into cropland in Northern Kazakhstan from 1954 to 1963.As a result Kazakhstan became an important breadbasket of the former Soviet Union.However, the collapse of the Soviet Union in 1991 triggered widespread agricultural aban