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Design and Fabrication of Digital Tuning Analog Component IC
신명철,장영욱,김영생,고진수,Shin, Myung Chul,Jang, Young Wook,Kim, Young Saeng,Ko, Jin Soo The Institute of Electronics and Information Engin 1986 전자공학회논문지 Vol.23 No.6
This paper describes the design and fabrication of a high performance digital tuning analog component integrated circuit that contains a television station detector and decoders(H and L types). When the comparator level sampling method is used, this integrated circuit can be used as a stable channel selector for an external circuit with very large signal variation. It has been fabricated using the SST bipolar standard process and its chip size is 2.2x2.1mm\ulcorner As a result, we have succeeded in fabricating the IC that satisfies the D.C characteristics, and the channel station detector and decoder function.
신명철(Myung-Chul Shin),김세원(Se-Won Kim),류태우(Tae-U Ryu) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.11
This work focuses on the use of flame chemiluminescence for sensing applications in monitoring of a turbulent flame. The optical emissions from a turbulent swirl gas flame were investigated using Photomultipliertube(PMT) and spectrometer system. The goal of this research is to analyse the relationship between flame chemiluminescence intensity and burner operating conditions. The chemiluminescent emissions of OH*, CH*, and C₂* were measured at various equivalence ratios and thermal inputs. The effects of equivalence ratios and NOx emission characteristics on the radical emission intensities (CH*/OH*, C₂*/CH*, C₂*/OH*) were investigated experimentally.
신명철(Myung Chul Shin),이진기(Jin Ki Lee),임대원(Dae Won Lim),염태희(Tae Hee Yeom) 대한기계학회 2019 대한기계학회 춘추학술대회 Vol.2019 No.11
Geodae-Uksae 1 was used to evaluate combustion characteristics. An experiment was performed using a Drop Tube Furnace. To investigate the influence of temperature, reaction was performed at an equivalence ratio of 0.4 and temperatures of 400–1100 C. Kinetic parameters based on combustion characteristics were confirmed that the reaction zone could be divided into three zones by temperature. Evaluation of the reaction kinetic parameters were based on the balance of carbon containing gases CO₂ and CO. The concentration of exhaust gases was measured through the gas analyzer. The activation energy of the Geodae-Uksae 1 is 20.7 kJ/s, which is lower than coal and other biomass. The Geodae-Uksae 1 has a higher combustion reactivity because of its lower activation energy.