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Security is a prime concern in our modern life. Everyone wants to be as much secure as possible. We would all like to believe living in a safe and secured society. Nowadays there are various systems on the market ranging from inexpensive alarms to highly sophisticated systems requiring professional installation. The "Microcontroller Based Universal Surveillance System" a pretty essential part of any particular area. This system works as a watchdog for a particular area. It can detect any change, desirable or undesirable, at instance including motion, temperature, entrance/exit, smoke, water,...

Electricity is needed every where after its invention by Edison. It is called the prime mover of a nation. Bangladesh is a developing country and it is facing huge energy crisis. Modern life and its supporting activities are impossible without proper supply of electricity at a reasonable price. To achieve desirable performance and viability of the sector, there is no alternative to bring down the system loss to an acceptable limit. Two economic growth scenarios (Low Scenario and Reference Scenario) were considered to forecast future energy demands. To ensure the electricity...