Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Sang-Myun Lee"'
Publikováno v:
Transactions of the Korean Society of Mechanical Engineers - B. 44:231-235
Publikováno v:
Sensors and Actuators A: Physical. 283:235-244
A MEMS-based particle detection system which includes a particle processing chip and electronic circuits was developed for low-cost and ubiquitous monitoring of airborne ultrafine particles. The detection system consists of particle classification, c
Autor:
Tae Hoon Lee, Seong-Jae Yoo, Sang-Myun Lee, Kyongtae Kim, Hong-Beom Kwon, Ui-Seon Hong, Dong-Hyun Kang, Yong-Jun Kim
Publikováno v:
2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII).
This paper reports an ammonia cross-sensitivity elimination filter for SCR systems. Since NO X sensors are cross sensitive to NH 3 , a reading of NO X sensor could not be accurate. As the reading is inaccurate, the closed-loop SCR systems is unpredic
Autor:
Seong-Jae Yoo, Sang-Myun Lee, Jungho Hwang, Yong-Jun Kim, Kyongtae Kim, Ui-Seon Hong, Hong-Beom Kwon, Hong-Lae Kim
Publikováno v:
2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII).
This paper reports a MEMS based particle size analyzer using electrostatic measuring techniques. The MEMS based particle size analyzer is able to classify particles of same diameter by using electrical mobility and measure particle size distribution
Autor:
Jangseop Han, Seong-Jae Yoo, Hong-Beom Kwon, Jeong-Yeon Hwang, Yong-Jun Kim, Ui-Seon Hong, Sang-Myun Lee
Publikováno v:
2018 IEEE Micro Electro Mechanical Systems (MEMS).
This paper firstly reports a MEMS-based particle size magnifier. By growing nanoparticles to a diameter greater than 1 μm, the proposed device enables optical methods to detect the individual nanoparticles which cannot be seen optically due to their
Publikováno v:
2017 IEEE 30th International Conference on Micro Electro Mechanical Systems (MEMS).
This paper reports a MEMS-based particle size spectrometer using a micromachined cascade impactor. While a MEMS-based particle counter presented in our previous research was developed for measuring the total number concentration of particles within c
Publikováno v:
2016 IEEE 29th International Conference on Micro Electro Mechanical Systems (MEMS).
This paper reports a novel micromachined corona-based unipolar aerosol charger for improving particle charging efficiency. The particle charging efficiency is an important parameter in aerosol measurement. The low charging efficiency of the previous
Autor:
Seung-Cheol Lee, Yishan Yang, Hyun-Gyun Yuk, Sang-Myun Lee, Marta Mikš-Krajnik, Qianwang Zheng
Publikováno v:
International journal of food microbiology. 222
Fresh mung bean sprouts have been identified as a source of many Salmonella outbreaks worldwide. The aim of this study was to develop a rapid and accurate detection methodology for low levels of healthy and sanitizer-injured Salmonella on mung bean s
Publikováno v:
2013 IEEE 26th International Conference on Micro Electro Mechanical Systems (MEMS).
This paper reports a micromachined corona discharger with slit dielectric barrier for measuring the number concentration of airborne particle. The tip-to-plate corona discharger presented in our previous research only generates the corona discharge o
Publikováno v:
Journal of Micromechanics and Microengineering. 22:045013
A unique hybrid jetting system based on electrohydrodynamic and piezoelectric forces has been designed to verify the control of the drop velocity and to obtain ultrafine droplets with a high jetting frequency. Piezoelectric nozzles have been fabricat