Agriculture is the principal source of income for majority Nigerian rural households, but it has suffered significant setbacks in recent years, resulting lower productivity and returns on investment. The study looked at econometric analysis household farmers' agricultural intensification strategies Imo State, Nigeria. With help standardized questionnaires, 198 farmers were selected using a mult...

Ohmic and Schottky contacts are playing a major role in the field of ZnO based electronics device fabrication. It is seen that several works have been reported on metallization scheme, contacts with this semiconducting material. But, the thickness of semiconducting material and the choosing of substrate still remain imperfect and inefficient for advanced IC technology. To estimate contact resis...

BACKGROUND In 2009, national guidelines for hepatitis A control in Australia changed to recommend hepatitis A vaccine (HAV), instead of normal human immune globulin (NHIG), for post-exposure prophylaxis (PEP). AIMS (1) Determine whether the uptake of PEP among contacts of hepatitis A cases changed after the introduction of the new guidelines, and (2) assess the field effectiveness of the HAV ...

The paper briefly reviews Duncan Dowson's ground-breaking contribution to the theory of elastohydrodynamic lubrication in relation understanding gear tooth contacts. His early work with Higginson on numerical modelling finally explained how gears can operate successfully, and avoid wear, due generation a stiff, protective oil film. resulting minimum film thickness equation stands as reliable re...

The ability to perform different tasks by a serial manipulator mounted on legged robots, increases the capabilities of the robot. The position/force control problem of such a robot in the stance phase with point contacts on the ground is investigated here. A target plane with known stiffness is specified in the workspace. Active joints of the legs and serial manipulator are used to exert the de...