Every age group strives for good skin. The face serum has been the optimal topical formulation for delivering active ingredients to the skin. However, the synthetic materials used in these led to skin irritations, redness, and itching. The…

Hazardous gas detection is a tool specially developed to detect liquid petroleum gas and natural gas at the minimum concentration of gas in the air is 200 ppm and the maximum concentration of gas in the air is 10 000 ppm. Design and build a…