Corpus and Korean Grammar Teaching

본고는 한국어 문법 교육에 있어서의 코퍼스 활용 연구를 분석하고 문법 교수에의 활용을 제안하는 것을 목적으로 하였다. 이를 위해, 국내외 언어교육 연구에서의 코퍼스를 활용한 문법 교육 자료 연구와 문법 교수 방안 연구를 분석해 보았다. 언어교육에서의 활용성을 전제로 하여 문법을 어휘 문법, 문장 문법, 담화 문법의 세 영역으로 구분하고 이들 영역에서의 연구 결과를 분석하고자했다. 첫째, 국내외 연구를 비교해 보면 국외의 연구에 비해 국내 연구는 코퍼스 활용 연구가 부족하며, 특히 교수 현장에의 적용 부분이 부족함을 확인할 수 있었다. 이는 교수자의 코퍼스 접근의 용이성 확보를 통해 해결해야 함을 제안하였다. 둘째, 선행 연구의 분석 결과 한국어교육에서의 코퍼스 구축의 문제점을 발견할 수 있었다. 한국어교육에서의 코퍼스의 사용은 코퍼스 규모나 균형성이 확보되지 못해, 적은 자료의 분석으로 결과를 도출하거나 문어에 치중되어 언어교육에의 효용이 적음을 확인할 수 있었다. 이는 국가 주도의 대규모 한국어 교육용 코퍼스 구축이 필요함을 의미한다고 보았다. 셋째, 코퍼스 활용을 위한 교사 교육의 필요성이나 음성, 동영상 코퍼스로 이어지는 다양한 유형의 코퍼스가 구축되어야만 문장 문법에 머물고 있는 문법 교육이 어휘 접근적 문법, 담화 차원의 문법, 맥락 차원의 문법 교수로 나아갈 수 있음을 확인할 수 있었다. The purpose of this paper is to analyze the corpus studies in Korean grammar teaching and suggest its applications. Based on the applicability in language education, this study divide grammar into three areas: lexico grammar, discourse grammar and sentence grammar and intends to analyze the research results in these areas. First, this paper finds that the domestic studies lacks in corpus application research compared to the foreign studies, especially in the field application of corpus in teaching. This paper suggests that this problem can be resolved through instructor's easy access to the corpus. Second, this paper analyzes the previous studies and detects the problems regarding corpus building in Korean education. This paper proposes the need for building large corpus led by Korean government. Third, this paper emphasizes the necessity of teacher training using the corpus and building various types of voice and video corpus for grammar education that goes beyond current sentence oriented grammar to lexical approached grammar, discourse grammar and context grammar

An Alternative Korean Grammar Education Method

This study reviews the recent research about contemporary Korean grammar education and suggests the alternative instruction methods for the future. In this regard, this study suggests that it is necessary to select the major grammar items and rank them according to their significance. 1bis study also proposes the necessity of research into lexical grammar and discourse grammar. As an alternative instruction method, this study recommends the grammar education that is l)gradual, 2)explicit, 3)eclectic between instructors and learners oriented educations, 4)integrated with vocabulary education, and 5)utilizes independent grammatical types and error correction cases

극지용 부유식 플랫폼을 위한 빙하중 생성 모듈 개발 및 위치 유지 성능 평가

To assess the station-keeping performance of floating structures in the arctic region, the ice loads should be considered along with other environmental loads induced by waves, wind, and currents. However, present methods for performance evaluation in the time domain are not effective in terms of time and cost. And also the standard procedure to be used to analyze the station-keeping performance of a floater considering ice loads has not been established yet. In this paper, ice loads generation module is proposed based on the experimental data measured at the KRISO ice model basin. Using the results of a captive model test conducted in multiple directions, the statistical characteristics of ice loads were analyzed and processed so that an ice loads corresponding to an arbitrary angle of the structure could be generated. The developed module is connected to commercial dynamic analysis software (OrcaFlex) as an external force input. Then, station-keeping simulation in the time domain was conducted in complex environmental loads with ice-induced forces were generated and applied to a ship type floater with dynamic positioning and mooring systems. The effectiveness of heading control with a dynamic positioning system is analyzed to evaluate the improvement of the performance of the station-keeping system in the ice conditions. Two different station-keeping systems with mooring only and mooring with a dynamic positioning system. Position offsets and mooring line tensions for the two scenarios were compared with maximum values and most probable maxima (MPM) values. The results of the simulation showed that the heading control can reduce 8.2% of MPM values for the mooring lines and improve the station-keeping performance by about 16.3%. The validity of the station-keeping system that was designed was confirmed, and it is expected that the specification of mooring lines can be relaxed with the heading control. keywords : Dynamic positioning(DP) assisted mooring, Statistical ice loads generation, Time domain simulation, Station keeping performance evaluation, Arctic floating structures, Heading controlTable of contents List of Tables iv List of figures v Abstract vii 1. Introduction 1.1 Background 1 1.2 Literature review 3 1.3 Overview 5 2. Procedure to evaluate the station-keeping performance under ice condition 2.1 Frequency domain analysis 6 2.2 Equation of motion in time domain 7 2.3 Forces by the station keeping system 9 2.3.1 Force by the DP system 9 2.3.2 Force by the mooring lines 11 2.4 Ice-induced load 13 2.5 Procedure for the statistical analysis on the global performance 14 3. Development of ice loads generation module 3.1 Measurement of ice loads in an ice tank test and post-processing of the data 16 3.1.1 Experimental setup and conditions 16 3.1.2 Post processing of the measured data 20 3.2 Ice load generation in time domain 24 3.2.1 Process to generate random value at an arbitrary heading angle 24 3.2.2 Summary of ice loads generation module 28 3.3 Prediction of 3D ice load spectrum using ML 30 3.3.1 Approach 30 3.3.2 Types of ML model 33 3.3.3 Composition and form of ML 34 3.3.4 Comparison of predicted 3D spectrum 35 3.3.5 Time domain ice load generation 36 4. Validation of developed module 4.1 Simulator design for the time domain analysis 40 4.2 Information of the floater and DP assisted mooring system 40 4.3 Ice load validation test generated by the developed module 42 4.4 Derivation of limit status of DP heading control 46 5. Application in global performance analysis 5.1 Environmental condition 48 5.2 Simulation results 52 6. Conclusion references 66Maste