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      • 중국인 한국어 학습자의 비격식적 논쟁 담화에 나타나는 말 끼어들기 양상

        조완철 부산외국어대학교 일반대학원 2014 국내석사

        RANK : 247631

        During informal debate, interrupting can function as a strategic method to achieve the purpose of the discussion and be provided a description of using aspects as functions. To provide a basic text for the education of debates in Korean education, this study sets a concept and range of 'debates' & 'interrupting' and analyzed interrupting behavior during informal debates among Chinese Korean Language learners. It hasn't discussed interrupting behavior of informal debates in Korean education until now. Hence, it's difficult to analyze interrupting behavior in learners' groups objectively. For this reason, this study conducted the analysis of the informal discussion date for native Korean speakers first, and then it applied to be a criteria of the comparative analysis on the study of Korean language learners' interrupting behavior. The results of the conversation's analysis, native Korean speakers and korean language learners used interrupting strategy to go on smoothly in debates. Also they both used this strategy to communicate their opinions effectively in debates. However, the results of analysis for types of interrupting behavior, native Korean speakers use various conversation strategy while Korean language learners use the strategy restrictively. Besides, native Korean speakers use this strategy as purpose of the discussion in cooperation with each other although debates are competition conversations to clinch their arguments. On the other hand, Korean language learners use the strategy when they argue with others and these interrupting behavior lead to overheat their conversations and go so far as to interrupt a conversation. Next, this study compared the types of native Korean speakers' and Korean language learners' interrupting behavior. As a result, even though both speakers' interrupting behavior have same functions in debates, there are some differences such as using methods or aspects of interrupting behavior. Based on the above results, this study shows it's necessary for a methodical education of the interrupting behavior in Korean education. Furthermore, This study can be provided as practical basic data for debates education, textbook development and much more, for those who learn Korean language.

      • 한국어 교육과정 평가 준거 개발 연구 : 대학 내 부설 한국어교육기관을 중심으로

        조완철 부산외국어대학교 일반대학원 2023 국내박사

        RANK : 247631

        Various studies have been conducted to establish a systematic curriculum for university Korean language education centers, and there have been many efforts to develop standardized Korean language curriculums at the levels of government institutions. Due to these efforts, the curriculums of university Korean language education centers have recently come to have relatively consistent and substantial systems. Therefore, discussions related to future Korean language curriculums should be made toward improving and managing curriculum quality through curriculum evaluation, taking a step further from systematic curriculum establishment and operation through curriculum design. However, there has been little theoretical and empirical discussion on the evaluation of curriculums in the field of Korean language education, and it is difficult to find research on the evaluation of Korean language curriculums at universities, which hold the largest numbers of Korean language learners. Thus, this study attempted to lay foundations for the evaluation of Korean language curriculums by taking the first step in curriculum evaluation, which is developing curriculum evaluative criteria for university Korean language education centers. For this, this paper established three research tasks, which are the theoretical exploration of Korean language curriculum evaluations, the design of a Korean language curriculum evaluation model for university Korean language education centers, and the development of Korean language curriculum evaluation criteria for university Korean language education centers. In the theoretical exploration stage of Korean language curriculum evaluation, the concept and scope of Korean language curriculums were revealed through literature analysis prior to the development of evaluative criteria, and based on this, the concepts and characteristics of Korean language curriculum evaluations were organized. Subsequently, domestic and foreign curriculum evaluation models were analyzed to organize implications for the development of a Korean language curriculum evaluation model. After theoretical searches related to Korean language curriculum evaluations were completed, a Korean language curriculum evaluation model for university Korean language education centers was designed on that basis. Curriculum evaluation models conceptualize curriculum evaluations and conceptual models show elements that should basically be included in curriculum evaluations, such as what, why, and from what perspective evaluations should be made. Therefore, a curriculum evaluation model provides a general logical outline for curriculum evaluation. In addition, a curriculum evaluation model can be designed by structuring and representing variables related to curriculum evaluation. Based on variables related to Korean language curriculum evaluations, such as evaluative purposes, evaluative subjects, evaluative targets, evaluative criteria, and evaluative methods, which were examined in the theoretical exploration stage, a Korean language curriculum evaluation model was structured using a three dimensional model that revolves around the three dimensions of evaluation domains (curriculum preparation stage, curriculum operation stage, curriculum result utilization stage), evaluations targets (learners, educational content, teachers, environment), and evaluation procedures (data collection, value judgment), and a conceptual model was completed by providing explanatory descriptions of each axis. In the development stage of Korean language curriculum evaluation criteria for university Korean language education centers, actual evaluative criteria were developed based on the curriculum evaluation model. For this, a six-stage evaluative criteria development procedure was prepared, consisting of elaborating evaluation domains, setting description systems for evaluative criteria, extracting and classifying evaluative indicators, selecting evaluative criteria, reviewing and modifying evaluative criteria validity, and detailing a final (draft) for evaluative criteria. First, in the evaluation domain elaboration stage, the axes of conceptual model evaluation domains (curriculum preparation stage, curriculum operation stage, and curriculum result utilization stage) and of evaluative targets (learners, educational contents, teachers, environments) were intersected, establishing 12 detailed domains for Korean language curriculum evaluation. Next, description systems for evaluative criteria were prepared focusing on evaluative criteria, evaluative areas, evaluative items, and evaluative indicators, and of these, evaluative indicators that are the basis for selecting evaluative criteria, were extracted through literary analysis and in-depth interviews with experts. Evaluative indicators extracted through literary analysis and expert interviews were classified according to 12 detailed evaluation domains considering indicator properties and characteristics, and overlapping or similar evaluative indicators were integrated and described. Through this process of extracting and classifying evaluative indicators, a total of 102 final evaluative indicators were described, and based on this, evaluative criteria were selected. The selection of evaluative criteria was divided into the researcher evaluative criteria selection stage and the first and second expert review and correction stages. First, the researcher selected evaluative criteria based on evaluative indicators and described evaluative criteria according to evaluative criteria description systems. In order to increase the validity and reliability of evaluative criteria selected in this way, three Korean language education experts, including the researcher, reviewed and revised them twice. A total of 67 evaluative criteria were selected over this series of processes with 37 from operational preparation steps, 19 from operational steps, and 11 from operational result utilization steps. Finally, in order to confirm whether the 67 evaluative criteria developed are statistically valid, content validity was reviewed using a modified Delphi technique by 15 expert groups. In the Delphi technique, the degree of agreement and convergence were calculated to confirm the Content Validity Ratio (CVR) and the degree of consensus among experts. In addition, validity review results (CVR≧0.49, agreement≧0.75 and convergence≦0.5) and the individual opinions of experts were combined to confirm a total of 63 Korean language curriculum evaluation criteria for university Korean language education centers.

      • Electrochemical advanced oxidation of toxic wastewaters using highly catalytic dimensionally stable anode and boron doped diamond electrodes

        조완철 Korea Maritime and Ocean University 2019 국내석사

        RANK : 247615

        Electrochemical advanced oxidation processes (EAOPs) are a wastewater treatment process suitable for the treatment of degradable pollutants based on various oxidizers produced by direct and indirect oxidation. The material of anode is the most important in operating the EAOP. Three kinds of single catalyst DSAs (Ir/Ti, Pt/Ti and Ru/Ti) and four kinds of composite catalyst DSAs (Ir-Pt/Ti, Ir-Ru/Ti, Ir-Pd/Ti and Ir-Pt-Pd/Ti) and BDD anode were fabricated to evaluate oxidizer generation characteristics and pollutant removal characteristics based on each anode materials. The characteristics of the anodes were evaluated at the same current density of 25 mA/cm2 at NaCl electrolyte. The oxidant generation characteristics were evaluated by comparing the amount of oxygen generated in the pollutant oxidation and the amount of generated · OH and ClO- by the electrode reaction. The removal efficiencies for volatile organic compounds (VOCs) wastewater and 1,4 dioxane were examined. In case of the BDD and Pt/Ti anodes, the ·OH generation reaction occurs more actively than the oxygen side reaction while ClO- generation reaction occur slowly. For the DSAs without for Pt/Ti, the ·OH generation reaction occurred slowly, whereas the ClO- generation reaction occurred rapidly. On the other hand, in the case of the composite catalyst DSA, the combination of Ir and Pd proved to be effective in improving the ·OH generation reaction. The removal efficiency of VOCs in Ir-Pd/Ti anode was the highest at over 80% and the rate of volatilization was less than 4.4%, which was the lowest among Ir-based composite catalyst DSAs. BDD and Pt/Ti anodes exhibited more than 90% of removal efficiency for 1,4-dioxaneas ·OH generation reaction occurs actively. This value is more than 60% higher than the other anodes, indicating that 1,4-dioxane is selectively removed through ·OH. This study implies that examination of oxidant generation of the electrode and development of the anode material based on the pollutant removal mechanisms will significantly improve treatment efficiency of EAOPs. 전기화학적 고도산화 공정은 직·간접산화에 의해 생성되는 다양한 산화제를 바탕으로 난분해성 오염물질 처리에 적합한 폐수처리공정이다. 산화전극의 소재는 전기화학적 고도산화 공정을 운영하는데 있어서 가장 중요전극이다. 본 연구에서는 전극 소재에 따른 산화제 발생 특성과 오염물질 제거 특성을 평가하기 위해 세 종류의 단일 촉매 DSA(Ir/Ti, Pt/Ti, Ru/Ti)와 네 종류의 복합 촉매 DSA(Ir-Pt/Ti, Ir-Ru/Ti, Ir-Pd/Ti, Ir-Pt-Pd/Ti), BDD 전극을 제작하였다. 전극의 종류별 특성평가는 동일하게 NaCl 전해조건에서 25mA/cm2의 전류밀도에서 수행되었다. 산화제 발생 특성평가는 오염물질 산화에 불필요한 산소 발생량과 전극 반응에 의해 생성되는 ·OH, ClO-발생량을 비교하여 진행하였으며, 오염물질의 제거특성은 휘발성유기화합물 폐수와 1,4-다이옥산의 제거효율을 비교하여 평가하였다. BDD 전극과 Pt/Ti 전극은 산소 발생 부반응과 ClO-의 발생반응이 느리게 일어나는 것에 비해 ·OH 발생반응은 활발하게 일어나는 것으로 나타났다. 또한, Pt/Ti를 제외한 DSA 전극은 ·OH 발생반응이 느리게 일어나는 반면에, ClO- 발생반응은 빠르게 일어나는 것을 확인할 수 있었다. 한편, 복합촉매DSA의 경우 Ir과 Pd를 조합하는 것이 ·OH 발생반응 향상에 효과가 있는 것으로 나타났다. 전극의 수명 측면에서 우수한 특성을 보이는 Ir을 기반으로 만든 복합촉매 DSA를 이용하여 휘발성유기화합물을 처리하였을 때, Ir-Pd/Ti 전극의 제거효율이 80% 이상으로 가장 높았을 뿐만 아니라 휘발되는 비율이 4.4% 미만으로 가장 낮은 것으로 나타났다. 한편, 1,4-다이옥산은 ·OH 발생반응이 활발하게 일어나는 BDD와 Pt/Ti 전극의 경우에만 90% 이상의 제거효율을 나타냈다. 이는 타 전극에 비해 60% 이상 뛰어난 것으로 1,4-다이옥산이 ·OH를 통해 선택적으로 제거되는 것으로 나타났다. 이와 같은 연구결과를 바탕으로, 전기화학적 고도산화 공정의 처리효율을 향상시키기 위해서는 전극 촉매 조합에 따른 산화제 발생 특성 연구와 오염물질의 제거기작에 기초한 전극 소재의 적용이 필요할 것으로 판단된다.

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