Innovation is very important in modern times to improving the quality of a product in industry of construction. A ladder is a piece of equipment consisting of repeated bars or steps (rungs) between two upright lengths of metal, wood, or rope that…

The goal of this system is to promoting digital transformation by establish an online notification and record keeping system of firefighting maintenance work in a building. This system is specially designed for preventive maintenance for fire alarm…

Nowadays, solar technology is one of the new technologies that produce electricity. There are various types of solar systems used in housing and industry such as Off-grid system, on-grid system, hybrid system and so on to generate electricity. One…