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淸朝의 包攝 政策과 鄭氏 隷下 海上集團의 轉向 ― 臺灣遠征隊 구성원의 성격 분석을 중심으로 ―
채경수 명청사학회 2019 명청사연구 Vol.0 No.52
This research attempts to draw a conclusion that the appeasement policy and the conversion of merchant-pirate groups under the Zheng served as the impetus of the Qing’s victory against the Zheng. Most of the Fujianese merchant-pirate groups were normally under the banner of the Zheng or cooperated in the business of the Zheng. When they did not have any common interests with the Zheng, they often stayed in neutral, hardly supported the Qing against the Zheng. The Zheng was able to fight against the giant-the Qing empire- under the endorsement of Chinese merchant-pirate groups. The Qing court implemented an appeasement policy targeting the Zheng continuously. The appeasement policy of the Qing may be categorized into two kinds. The one is conciliatory moves towards the chiefs of the Zheng directly. The other is aiming the subordinate groups of the Zheng instead. The former failed utterly, while the latter achieved enormous success. As a result, the Qing obtained powerful allies, whereas the Zheng lost its influence over the Chinese merchant-pirate groups. Fujianese formed a majority in the Taiwan campaign army from high-level officers to low-level soldiers. Many of them were surrenderers from the Zheng camp. In other words, the Zheng was conquered by the Qing navy, which was composed of Fujian littoral peoples, who escaped from the shadow of the Zheng’s influence. The military value of the Taiwan campaign army fell rapidly after the elimination of the Zheng. However, under Shi Lang’s tremendous efforts, the surrenderers melted into the Qing navy successfully. Surely, the retainment of Taiwan and the establishment of the Taiwan Garrison are the most representative achievements. In short, the merchant-pirate groups in Fujian did not disappear with the extinction of the Zheng but transformed themselves into the Qing navy successfully.
蔡京洙,李大喆 전북대학교 공업기술연구소 1990 工學硏究 Vol.21 No.-
The strcutrure parameters of gas transport for the iron ore agglomerate were obtained by the modified Wicke-Kallenbach method(abbreviated as W-K method in the present paper). Reduction of sinter was conducted in CO-CO₂gas mixtures in stepwise manner. The change of pore structrue of the sample during the stepwise reduction was observed with the mercury porosimetry. Samples in a single particle were also reduced to ovserve the weight change during the stepwise reduction and the dffective diffusivity was derived by applying the unreacted core model. Thus obtained values by different methods was compared with that by W-K method. The results are summarized as follows: 1. Apparent effective diffusivites(De,app) merge almost the equivalent values reduced to metallic iron although those of unreacted phases are extremely different. 2. The magnitude of De, app was found to be in order from smaller to larger one as secondary hematite, fine hematite and fine calcium ferrite. 3. The change in pore size distribution for hematite is similar to pellet but that of calcium ferrite is different from hematite. In the latter case, the pore having its diameter of about 10㎛ does not change so much but the pore of about 1㎛ grows extensively in progress of reduction. 4. This is attributed to the preferential reduction of some structures existing in calcium ferrite. The iron phase reveals almost the same porosity independent of that of the unreacted sample. 5. One dimensional unreacted core model was applied to the stepwise reduction of synthetic sinter. Good accordance was also found between the effective diffusivity of sinter derived by the model and that obtained by W-K method except some cases in which the slope of the mixed control plot was negative.
다결정실리콘 표면 미세가공 기술을 이용한 초소형 기계식 스위치의 설계 및 제작
채경수,한승오,하종민,문성욱,박정호,Chae, Gyeong-Su,Han, Seung-O,Ha, Jong-Min,Mun, Seong-Uk,Park, Jeong-Ho 대한전기학회 2000 전기학회논문지C Vol.52 No.10
A micromechanical switch that can be used as a logic gate is described in this paper. This switch consists of fixed input electrodes an output electrode Vcc/GND electrodes and movable plates suspended by crab-leg flexures. for mechanical switching of an electrical signal a parallel plate actuator which comes in contact with output electrode was used. Provided that movable plates are connected to Vcc and a low input voltage(ground signal) is applied to the fixed input electrodes the movable plates are pulled by an electrostatic force between the fixed input electrodes and the movable plates. the proposed micromechanical switch was fabricated by surface micromachining technology with$2\mum$ -thick poly-Si and the measured threshold voltage for ON/OFF switching was 23.5V.
CO-CO2 혼합가스에 의한 온도별 및 단계별로 환원한 펠릿의 가스유효확산계수
채경수,이대철 대한금속재료학회(대한금속학회) 1992 대한금속·재료학회지 Vol.30 No.4
The structure parameters of gas transport for the oxide pellet were obtained by the modified Wicke-Kallenbach method(abbreviated as W-K method in the present paper). The specimens are acid pellet, basic pellet. Reduction was conducted in CO-CO_2 gas mixtures in stepwise manner. The change of pore structure of the sample during the stepwise reduction was observed with the mercury porosimetry. Samples in a single particle were also reduced to observe the weight change during the stepwise reduction and the effective diffusivity was derived by applying the unreacted core model. Thus obtained values by different methods was compared with that by W-K method. The results are summarized as follows 1. Temperature dependence of parameters for the reduced phases as well as original sample of acid and basic pellets were determined at 850, 950, 1050℃ Thus obtained values display not the clear relation with temperatures but a tendency to a gradual increase with increasing temperature. 2. The porosity and average radius of the original and reduced phase of pellets were observed with the mercury porosimetry. These obtained values do display a tendency to a gradual increase with increasing temperature. 3. Good accordance was found between the effective diffusivity of pellets by using the unreacted core model and that obtained from W-K method except some cases in acid pellets.