Recent Papers

ABSTRACTCOVID-19 is an infectious disease that first emerged in humans at the end of 2019. It spreads through small droplets that are released from the mouth or nose of an infected person, usually through coughing or sneezing. This disease can be prevented by practicing a clean and healthy lifestyle. One way to do this is by frequently washing hands using hand sanitizer. The use of hand sanitizers generally involves physical contact between users, so automatic hand sanitizers are needed to reduce physical contact. The principle of an automatic hand sanitizer is that when hands are brought close to the sensor on the dispenser, the pump on the dispenser bottle automatically dispenses the sanitizer onto the palm of the hand. The sensor on the dispenser bottle utilizes technologies like IR sensors to detect the presence of hands and trigger the automatic operation of the dispenser. There are also ultrasonic sensors used to detect the liquid level inside the dispenser bottle. The purpose is to detect a low level of sanitizer to replenish it and prevent empty dispenser bottles. This automated hand sanitizer produced is called the COVID-19 Killer Assistant.

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