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Modbus 프로토콜과 복합가스센서를 활용한 유독가스 검출 모듈 개발
배동규(Dong-Gyu Bae),정규창(Kyu-Chang Jeong),박병철(Byeong Cheol Park) 대한전자공학회 2021 대한전자공학회 학술대회 Vol.2021 No.6
Develop a module that can detect harmful gases using a complex gas sensor. In order to centrally collect the data of each module installed at the location where the gas is to be detected, packet transmission and reception are implemented using the modbus protocol. Received gas data can be stored in the server or used to alarm over a certain threshold, and can also be used as a general-purpose module by replacing the gas sensor.
김석철,배동규,한지웅,금성민,이창언,Kim, Seok-Cheol,Bae, Dong-Kyu,Han, Ji-Woong,Kum, Sung-Min,Lee, Chang-Eon 대한기계학회 2000 大韓機械學會論文集B Vol.24 No.9
The purpose of this study is to develop the non-gravity fluidized dryer. In this non-gravity fluidized dryer the fluidized zone is produced by two paddles in mixer, which maximizes the surface area of materials and then heated air through the guiding panels dehumidify them. This can conduct the drying process quickly and control moisture contents to lower limits. The ventilation system is closed loop system, which can be changeable to open system, and can be used as a multi-purposed dryer in which mixing, drying, granulating and cooling process is conducted. In order to develop the non-gravity fluidized dryer, in the first fundamental experiments were performed to mixing accuracy and then the other parts of dryer and control system were examined to check whether they were designed properly and operated harmoniously with mixer. Also the preparatory experiments were fulfilled to examine the efficiency and reliability of the dryer. Lastly, on the basis of preparatory experiments, performance test for the non-gravity fluidized dryer carried out for the variation of the initial moisture contents, desired moisture contents, heated air velocity and heating temperature.
곡물류의 형질전환 유도에 관한 연구 V. Electroporation에 의한 밀의 형질전환
송정원,정병균,배동규,임형탁,남백희,정현숙,황백,Song, Jung-Won,Jung, Byung-Kyun,Bae, Dong-Kyu,Im, Hyung-Tak,Nam, Back-Hee,Jung, Hyun-Sook,Hwang, Baek 한국식물생명공학회 1994 식물생명공학회지 Vol.21 No.4
밀의 조직절편을 직접 유전자 전이에 의해서 형질전환시켰다. 기계적으로 잘려진 뿌리조직 절편은 pBl 121 plasmid DNA와 electroporation 방법으로 형질전환시켰으며 300mg/L kanamycin을 함유하는 MS 배지에서 배양하였다. 형질전환된 캘러스는 배양한 지 5-7일이내에 개시되었으며 4주 후 선발되었다. 형질전환 효율의 최적수준은 200 V/ 800uF이었으며 2.5%로 형성되었다. GUS 분석과 southern 분석은 뿌리절편과 절편유래 캘러스로부터 외래유전자의 발현과 안정한 형질전환이 이루어졌음을 보여주었다. Wheat (Triticum aestium L.cv Cho-Kwang) explants were transformed by electrporation. Excised root segments were elechoporated with plasmid DNA of pBI121 and transferred to medium containing 300 mg/L kanamycin. Transformed calli formed within 5-7 days of culture and were selected from electroporated tissue on medium containing kanamycin after 4 weeks. The highest transformation frequency was obtained after electroporation with a pulse of 200 V/800 uF and calli formed at frequencies up to 2.5%. GUS ($\beta$-glucuronidase) assay and dot blot analysis showed that the foreign gene was capable of expressing in root explants subjected to electroporation and calli derived from the explants..