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General News on Thursday, April 11, 2019
Source: Myjoyonline.com
2019-04-11
Joana Owusu-Appiah, Selinam Fiadjo and Daniella Asare, sophomores
Every year, countries around the world, including Africa, spend huge sums of money on mosquito control and mosquito bites.
Among the many interventions to eliminate the deadly insect, there is concern about the toxins released by chemicals into the environment.
It is even suggested that getting rid of mosquitoes completely would create an imbalance in nature.
So, what allows them to live and enter our space while preventing them from biting?
Biomedical Engineering students at the Kwame Nkrumah University of Science and Technology built a robotic mosquito repellent.
Second-year students Joana Owusu-Appiah, Selinam Fiadjo and Daniella Asare call the robot "Anquito", called "anti" and "mosquito".
"We are aware that there are many measures to kill mosquitoes, but we said to ourselves: Is this a problem of life of mosquitoes or the fact that they are in our space?
"Someone is in his room with a mosquito net and mosquito net, but when there is light, he goes out to get air and gets bitten."
"What can we do for people coming out of their rooms and getting in," they thought.
The robot, built with computer programming, emits ultrasonic sounds.
Ultrasound does not differ from "normal" sounds by their physical properties, except that humans can not hear them.
This limit varies from one person to another and is around 20 kilohertz in healthy young adults.
Ultrasound is used in many areas, including object detection and distance measurement.
His imagery is often used in medicine.
Animals such as bats use ultrasound to locate prey and obstacles.
'Anquito' emits 38 kilohetz, which is thought to keep mosquitoes away.
It is equipped with sensors that stop and change direction after encountering an obstacle.
Students work on creating machine thumbnails and use artificial intelligence to make it smarter.
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