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한국과 일본의 외국인 노동자 정책과 외국인 노동자 운동: 이중적 시민사회와 정치적 기회구조
이병하 민주화운동기념사업회 2013 기억과 전망 Vol.0 No.29
This article mainly examines divergence in foreign labor policies between Korea and Japan. This research tries to figure out the puzzle why Japan is still maintaining the restrictive foreign labor policy to import the foreign workers,yet Korea is moving toward more open policy even though Korea began with a carbon copy of the Japanese policy. To explain this puzzle, I place special emphasis on migrant workers movements in terms of dual civil society, and intra-governmental competition as a political opportunity structure in both countries, and then examine political coalitions between state and migrant workers movements. This article argues that the policy divergence in foreign labor policies was made possible because intra-governmental competition in Korea was more critical than that in Japan, and the Korean NGOs succeeded in making political coalitions while the Japanese NGOs failed to make policy-networks with the governmental agencies. Additionally, political activism in Korea has played a huge role in national policy-making because the Korean civic groups are rooted in the history of strong political opposition to dictatorship. Meanwhile, Japan’s dual civil society, an abundance of local NGOs and a dearth of large advocacy groups at the national level, facilitates the localized patter of state-society relation. Therefore, the Japanese civic groups in support of policy shift have not produced reforms of national policies.
백운석 첨가가 응집에 의한 하수 처리수의 인 제거에 미치는 영향
이병하,박준홍,차호영,맹승규,송경근 대한상하수도학회 2012 상하수도학회지 Vol.26 No.3
Wastewater treatment plants need to reduce phosphorus in order to meet increasingly stringent regulations on phosphorus. This study evaluated the feasibility of dolomite as a coagulation aid to enhance phosphorus removal from secondary treated wastewater by chemical coagulation. Standard jar tests were conducted to evaluate the effect of dolomite addition on a coagulation process for phosphorus removal and to determine the optimum doses of coagulants and dolomite. Coagulants used with dolomite yielded a significant improvement in phosphorus removal and reduced total phosphorus concentrations below 0.02 mg/L in wastewater effluent. Dolomite has played an important role in enhancing phosphate adsorption and increasing pH, as a coagulation aid. The maximum removal efficiency of phosphorus in this study was yielded at 25 mg/l of dolomite and 20 mg Al/L of PAC dose. However, considering economic aspects, the optimum doses of dolomite and PAC were 10 mg/L and 15mg Al/L, respectively. Consequently, dolomite, a coagulation aid, can be used in coagulation processes to enhance the removal of phosphorus.
Delaire 변법을 이용한 편측 불완전 구순열 환자의 기능적 일차 봉합술: 증례보고
이병하,박창주,황경균,심광섭,정필훈,서병무 대한구순구개열학회 2008 대한구순구개열학회지 Vol.11 No.1
The outcome of primary surgery for cleft lip is judged by its effects on the quality of oro-facial function and development. Many surgical techniques have been tried to obtain better results, however, Delaire introduced a technique of ʻfunctionalʼ closure of the lip and nose, based on the findings of no true hypoplasia in the tissues either side of the cleft. In a seven-month-old Asian male patient with unilateral incomplete cleft lip, we carried out the primary closure by modified Delaireʼs technique. With no alveolar bone graft, the vertical incision on the nasal base was omitted in this patient because of his acceptable symmetry of nose. Also, a small Z plasty was added on the non-cleft side. The V-shaped incisions, whose notch was located on each side of the red vermilion, were designed and beveled incisions were performed for the rehabilitation of lip length and thickness, considering the postoperative wound contracture. We assured that this modification of Delaireʼs technique could be applied for various cases of primary closure of incomplete cleft lip.
이병하,김명진 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.53 No.2
We present a fiber-type phase retarder that is implemented by using a short segment of a single-mode ber. To induce the phase retardation, we utilize the photo-induced birefringence. Though the photo-induced birefringence was small, it was enough to realize quarter-wave retardation. In our works, by cascading two fiber-type quarter-wave segments in series and rotating one and/or both of them, we could conrm the potential as a polarizationstate converter. All birefringence segments were encapsulated in metal tubes and were terminated with fiber ferrules so that we could simultaneously rotate the birefringence axis and increase the connectivity to other devices. The theoretical results are given and are compared with the experimental ones.