| Biography | |
|---|---|
 Prof. Junhui Hu Nanjing University of Aeronautics and Astronautics, China |
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| Title: Ultrasonically Catalyzed Single-Sensor E-Noses & Their Algorithms | |
| Abstract: High-performance gas sensing and electronic noses (E-noses) have huge potential applications in human health diagnoses, food industry, environmental safety, internet of things, chamber air quality monitoring, etc., due to the merits such as point-of-care testing, easiness to operate, simple and light structure, low cost, etc. My research group proposed the ultrasonically catalyzed gas sensing method in 2017, and then successfully applied the method into high-performance gas sensing and single-sensor E-noses. This lecture gives the detailed research results in this respect, The first part of this lecture includes principle of the ultrasonic catalysis in gas sensing, and structure and characteristics of the gas sensors catalyzed by gas borne ultrasound. In the second part, working principle and algorithms of ultrasonically catalyzed single-sensor e-noses, are given and explained, as well as the structure, system design and gas discrimination performance. The algorithms applied in the E-noses include the k-method, R-C method and machining learning methods. It shows that the ultrasonically catalyzed gas sensors have much better sensitivity and lower detection limit than the conventional ones, and ultrasonically catalyzed single-sensor E-noses have strong capability of gas discrimination and concentration measurement. Keywords: E-Nose; Ultrasound; ML; Integration. | |
| Biography: Junhui Hu received his Ph.D. Degree from Tokyo Institute of Technology, Tokyo, Japan, in 1997, and B. E. and M. E. degrees in electrical engineering from Zhejiang University, China, in 1986 and 1989, respectively. Currently he works for Nanjing University of Aeronautics & Astronautics, China, as a full professor. His research interest is in ultrasonic sensors and actuators, ultrasonic nano fabrication, ultrasonic micro/nano/molecular manipulations, etc. He is a Chang-Jiang Distinguished Professor, China, and an IAAM Fellow. He authored and co-authored more than 300 publications, including more than 100 full SCI papers ((H index = 30)), two books, 1 editorial review in an international journal and more than 60 disclosed/empowered China and Japan patents. He is the sole author of monograph book “Ultrasonic Micro/Nano Manipulations: Principles and Examples” (2014, World Scientific). He has given more than 30 keynote/invited lectures at international conferences, and his research work has been highlighted by 7 international scientific media. He served lots of international conferences as a Technical Program/Organizing/Scientific Committee member, and was the chairman of five international conferences. He was awarded the title of valued reviewer by Sensors and Actuators A: Physical and by Ultrasonics, and won the Paper Prize from the Institute of Electronics, Information and Communication Engineers (Japan) as the first author in 1998. Presently, he is an editorial board member of four international journals, board member of Chinese Acoustical Society and member of its academic work committee, and deputy director of expert committees on electronic information materials and devices, and on Aerospace materials, Chinese national scientist think tank for materials and devices. | |
