http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
유철인 제주대학교 동아시아연구소 1997 東아시아硏究論叢 Vol.8 No.-
자신의 갖고 있는 고유한 문화와 이미지를 가지고 고객들에게 적극적으로 다가서는 마아켓팅이 매우 중요하다. 그러한 일을 하는 데는 정부나 지방정부의 뒷받침이 필요한 것은 사실이다. 기금을 마련하고 재정적 뒷받침을 위한 정부의 역할이 중요한 것은 사실이지만 더 중요한 것은 민간단체가 나서는 적극적인 마아케팅이다. 민간단체는 직접 개개인에게 접근하는 전략과 아울러 정부의 역할까지 할 수 있는 즉 공과 사의 두 가지 일을 동시에 할 수 있어야 한다. 이러한 일을 해 나가기 위해서 기관은 필요한 협약과 규약, 구체적인 일의 추진방향을 설정해 나가야 한다.
入力電流의 高調波 低減을 위한 새로운 다이리스터 整流回路의 개발
柳喆魯,金聖中,李公熙,李星龍,高榮浩 全北大學校 1987 論文集 Vol.29 No.-
The harmonics involved in input AC line currents of thyristor rectifier apparatus have recently been a serious problem in the cause of burning power condenser, mis-action of UFR(protective relay), and trouble of the automatic voltage controller, etc, in the sending or distribution electric power system. As an effective counter-measure for this, the method of having switching taps on the conventional interphase reactor and its artificial utilization have been adapted, as we know. The conventional 3 tap method, however, is not achieved an effect of reducing harmonics under firing angle 15˚. In this paper, a new method of reducing harmonics involved in input AC line currents or output DC voltage of rectifier circuit is presented, which is due mainly to the equipment of the 2-3 switching taps on interphase reactor. Thereofre, main contents of this study are the following three items; 1) optimal number of taps 2) optimal turn ratio of interphase reactor 3) optimal control angle of interphase reactor.
유철로,김홍규,이공희,이성룡 全北大學校 1992 論文集 Vol.34 No.-
A new multiple current source inverter for reducing the harmonics in output current is presented in this study. Condenser capacity necessary for the inverter design is decided by the commutation analysis of current source inverter with induction motor as load. And the proposed system operates 24 phase inverter by adding only tap changing circuit which consists of several taps and static switching elements to the 12 phase inverter, which is the double connected 6 phase inverter with an interphase reactor. Also to optimize the effectiveness of the harmonic reduction, the optimum turn ratio and tap changing control angle of interphase reactor are decided by digital simulation and its validity is verified with experiment. And under the optimum condition, it is clarified that the harmonics components involved in the output currents of the proposed inverter are nearly equal to those of the conventional 24 pulse inverter.
유철인 서울대학교 사회과학연구원 2000 비교문화연구 Vol.6 No.2
This paper investigates family succession and ancestors in Ryukyu Islands, Japan, comparing a case of Kishimoto's family in Okinawa Island with several cases of Kominato village in tsunami Island. In Okinawa, primogeniture, that is, the first son's succession is strictly observed. The succession to ancestral tablets called ifee(位牌) is the main pair of family succession. The tablets of persons who have no living heirs of their own may be temporarily taken care of by non-lineal descendants, but they are not the latter's ancestors. Such a principle of lineal succession is also shown in the notion of family called yaninzu in Okinawa. Who will be an heir of their family succession in Amami, however, depends on the situation rather than the principle of primogeniture. Any son or daughter who has taken care of parents in their old age becomes a successor. If a husband of the only daughter in one's family must be an heir of his family, he cannot become solely a successor of parents-in-law, in such a case. he succeeds to both families.