These days, water filtration method commonly uses chemically made substances. This could be harmful and the sources are limited. Activated carbon that is used in water filters are made from charcoal. Charcoal is non-renewable and has only a finite…

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…