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고 전력 RF-Filter의 수동혼변조 저감방안에 대한 연구
박종철,이강훈,이영철,Park, Chong-Chul,Lee, Kang-Hoon,Rhee, Young-Chul 한국전자통신학회 2008 한국전자통신학회 논문지 Vol.3 No.4
본 연구에서는 고출력 RF 필터의 도금상태에 따른 수동혼변조왜곡(PIMD)을 측정하였으며 RF-filter의 PIMD를 저감시키기 위한 방안을 제시하였다. PIMD의 표준측정방안에 따라 Wibro 중계기용 고출력 RF-필터의 PIMD 특성를 측정하였다. Wibro용 고 전력-RF 필터의 설계에서 통과대역의 에지(edge)에서 삽입손실 및 지연 특성의 평탄도가 저하될 경우, PIMD의 발생되므로 본 연구에서는 고 전력 필터의 PIM을 감소시키기 위하여 필터의 내부 도금 재료의 종류와 방안을 제시하였다. In this paper, the Passive Intermodulation Distortion(PIMD) of high power RF Filter is measured with filter inner coating materials and we suggest how to reduced the PIMD of RF filter coating methods. According to the standard measurement regulation by IEC, the Passive Intermodulation Distortion of Wibro relay high power filter are measured. We suggest the coating materials and coating methods of high power filter inner structure to reduce the PIMD generating by insert loss and worse flatness of filter delay in the design of Wibro high power filter efficiently.
독일의 스포츠를 통한 사회통합 사례에 따른 한국 스포츠의 방향성 모색
박종철 한국체육정책학회 2022 한국체육정책학회지 Vol.20 No.3
Social integration policies for migrants and refugees in South Korea are being implemented by the Ministry of Justice and the Ministry of Gender Equality and Family. Despite containing various social values, however, sports are not systematically used as a policy means of social integration for migrants and refugees. Therefore, the purpose of this study is to make suggestion for future direction based on the German case of using sports for social integration. The main characteristics of social integration through sports in Germany include establishing a stable governance system from the federal level to the regional level, pursuing various goals, important roles and functions of sports clubs, performing distinctive programs, and operating systematic evaluation systems. The suggestions based on the German case are as follows. First, efforts are needed to form a social consensus and strengthen policy acceptance for social integration through sports. Second, it is necessary to establish a cooperative system between relevant ministries, and strengthen the expertise of major sports organizations for social integration through sports. Third, it is essential to develop programs which pursue various goals, including promotion of sports participation. Fourth, social function of sports clubs should be strengthened. Further research is needed to review advanced cases outside of Germany, and to understand the roles and functions of private organizations related to migrants and refugees in detail.
일본 도쿄지역 3개 온실 식물원의 열대 및 아열대 약용식물 조사 연구
박종철 한약정보연구회 2018 한약정보연구회지 Vol.6 No.2
From the greenhouses of Tokyo Metropolitan Medicinal Plants Garden, Medicinal Plant Garden of Hoshi University and Yumenoshima Tropical Greenhouse Dome in Tokyo Province of Japan, 311 tropical and subtropical plants were examined by photographing. From the greenhouse of Tokyo Metropolitan Medicinal Plants Garden, 152 species in 58 families of plants were investigated. Among the greenhouse of this botanic garden, the most dominant family was Apocynaceae with 13 species, followed by Leguminosae with 11 species, Malvaceae and Myrtaceae with 8 species, Solanaceae and Zingiberaceae 7 species, and Moraceae 6 species. From the greenhouse of Medicinal Plant Garden of Hoshi University, 103 species in 47 families of plants were studied. The most dominant families in the greenhouse of this botanic garden was Leguminosae with 19 species, followed by Apocynaceae with 7 species, Zingiberaceae with 6 species, and Moraceae 5 species. From the Yumenoshima Tropical Greenhouse Dome, 56 species in 31 families of plants were classified.
북핵문제 해법으로서의 9.19 공동성명: 협상연합의 형성, 작동, 지속화의 과제
박종철 평화문제연구소 2006 統一問題硏究 Vol.45 No.1
This research is going to analyze the achievement and tasks of the Six-Party Talks by focusing on the concept of negotiation coalition. The mid-term accomplishment of the Six-Party Talks was made possible by the formation of the negotiation coalition among countries concerned. The future of the Six-Party Talks depend on the functionof the negotiation coalition. The negotiation coalition passes through three stages. The first stage is the formation of the negotiation coalition. The second stage is the operation of the negotiation coalition. Multilateral and bilateral talks are complementary at this stage. The third stage is the maintenance and implementation of the negotiation coalition. It is required to overcome many stumbling blocks. In the first place, any ambiguity in an agreement must be clarified. Dialogue among several participants should be arranged. A road map of the issues has to be made. Moreover, coalition partners are required to get supporters internally and externally. Furthermore, getting material and organizational resources are needed.
Establishing a Peace Regime on the Koean Peninsula : Issues and Phases
박종철 국방대학교 국가안전보장문제연구소 2006 The Korean Journal of Security Affairs Vol.11 No.1
The peace regime should be pursued based on the following principle: the two Koreas members of the directly related parties, the conclusion of the peace treaty and arms control is implemented in a parallel manner, a flexible approach is used in the establishment of a peace regime and its management and the peace regime is a multiple-step process that combines inter-Korean dialogue, the peace regime, the Six-Party Talk and U.S.-ROK consultation. The peace regime must go through three stages. The first stage is the preliminary stage in which a general approach as well as North Korea's return to the NPT and the IAEA and U.S-DPRK contracts will be discussed during the inter-Korean military meeting. The peace forum on the Korean Peninsula will also hold the Four-Party Talks consisting the two Koreas, the U.S. and China. In the second stage, in accordance with the inspection and dismantlement of the North's nuclear weapons and facilities, the establishment of a peace regime and arms control will proceed through the Four-Party Talk and the inter-Korean military meeting. in the third stage, during the completion of the dismantlement of the North Korea, the international guarantee and management mechanism of the peace regime will be resolved additions to the implementation of arms reduction.