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This book has tried to address the problem of discontinuous electricity supply in a situation where continuous electricity supply through main grid is not possible or difficult. A new solar system, has been proposed in this book which is mainly the consists of pv module and battery system.The proposed system consists of four functional unity. These are PV panel, Charge Controller, Battery system and backup generator system. The solar system which has been proposed in this book is helpful for Islands and naturally abrupt regions and it is a great blessings for the people of remote location for...

The water level of an overhead tank can be controlled automatically by using parallel port of personal computer(PC) and required hardware circuit. A positional transducer is used to convert the water level of the tank into an electrical signal. This analog signal is converted into digital number which indicates various level of water in the tank by using an ADC. The output of the ADC is then fed to the parallel port of PC which make decision depending upon its input is that either the motors connected to the water pumps of the tank are in running condition or in rest, or which motor in the...

Women the bearer of water scarcity affects and cannot deny the realities water scarcity. This paper highlighted some of the ways in which water scarcity increases the difficulties faced by slum women, particularly in terms of the burden of water collection and health issues. It also traced changing relationships in slum womens life in this situation. Generally, womens water management role in the household is not recognizing as important role. This study reveals that, during water scarcity because of womens traditional role as providers of water for the family, women caretakers have...