Revan weighted PI index on some product of graphs

In chemical graph thoery, PI index is an additive topological index which has been used to measure the characteristics of chemical compounds. In this paper we introduce the weighted version of PI index of graph called the Revan Weighted PI index and we have obtained it for the hierarchical product of graphs, cartesian product, subdivision and join of two graphs. Also we have derived this index for some molecular graphs.Publisher's Versio

DEVELOPMENT OF A 0.5KW HORIZONTAL AXIS WIND TURBINE

Wind turbine is a machine that is powered by the energy from the wind. It is designed to convert the kinetic energy from the wind into electrical power (electricity). This study focus on the development of 0.5KW horizontal axis wind turbine. The major components of the wind turbine which include the blades, hub, shaft and the tower, were design and fabricated to meet the required 0.5 KW and the turbine was mounted on a tower height of 5m from the sea level. The test result showed that the wind turbine is capable of producing about 500 W, at a rotor speed of 153.5 rpm. The necessary design details that have been applied at the design and fabrication stages of the wind turbine guarantees the high hope of this wind turbine performing better

A Plan for Igniting Nigeria’s Industrial Revolution

The Industrialization of countries is in every way influenced by forerunner nations. This is exemplified in Western Europe’s copying of Britain’s technology and manufacturing systems. This work presents a study of the industrialization of nations such as Japan, South Korea, Taiwan, Singapore and several other industrializing countries and the lessons learned revealed that the industrialization of these nations was based on initial imitative-reverse-engineering of products of forerunner nations which then leads to endogenous growth and the onset of innovation under certain constraints. This is a strategic form of import substitution and is in fact the model around which a plan for Nigeria’s Industrialization has been buil

DEVELOPMENT OF A 0.5KW HORIZONTAL AXIS WIND TURBINE

Wind turbine is a machine that is powered by the energy from the wind. It is designed to convert the kinetic energy from the wind into electrical power (electricity). This study focus on the development of 0.5KW horizontal axis wind turbine. The major components of the wind turbine which include the blades, hub, shaft and the tower, were design and fabricated to meet the required 0.5 KW and the turbine was mounted on a tower height of 5m from the sea level. The test result showed that the wind turbine is capable of producing about 500 W, at a rotor speed of 153.5 rpm. The necessary design details that have been applied at the design and fabrication stages of the wind turbine guarantees the high hope of this wind turbine performing better

Design, Construction and Evaluation of a Cylinder Lawn Mower

A manually operated mechanical machine for cutting grass was design, fabricated and tested. The machine was design with an internal gear system which transfers the torque to the mower mechanism. The machine's performance test evaluation was conducted in delta state sports stadiwn Asaba. Area of grass cut 2.1 m2 , desired height of cut 20m, time taken 2 min, area of grass cut to desired height 1.92 m2 which gave the cutting efficiency of the cylinder lawn mower 91% with 0.244 KN hwnan effort were obtained. The cutting effectiveness was achieved with a total power of 579.6 W at a rotary speed of 135 rpm of shaft. Its friendly to the environment because it does not emits carbon monoxide into the environment and the noise level is drastically reduced. The machine is considered highly efficient and is readily adaptable to different cutting conditions