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      • KCI등재

        The Nonlinear Equivalent Input Disturbance Coordinated Control for Enhancing the Stability of Hydraulic Generator System

        Lan‑Mei Cong,Xiao‑Cong Li 대한전기학회 2020 Journal of Electrical Engineering & Technology Vol.15 No.2

        Hydraulic generator plays more important roles as a renewable clean energy in improving stability. As hydraulic generator enjoys strong nonlinear properties, traditional linearized control method may holds worse adaptability for vary disturbances. In order to solve the problem, a Nonlinear Equivalent Input Disturbance Coordinated Control (NEIDCC) method is proposed in this paper. The objective functions related to system control performance are frstly determined. Then the multi-objective equations satisfying the Brunovsky normal form are derived, by which the nonlinear control problem is transformed to linear space to be solved. The nonlinear equivalent control law is obtained from the linear law by calculating the Γ derivative of the objective functions. When the system is subjected to diferent disturbances, the designed NEIDCC control law supports dynamic damping by observing the disturbance to stabilize the oscillations. As a result, the control system holds good performance. The simulation results of the designed hydraulic turbine generator control system demonstrate the efectiveness of the NEIDCC method.

      • KCI등재

        A Note on Aspectual Properties of Korean Idioms

        Lan Kim 한국생성문법학회 2018 생성문법연구 Vol.28 No.3

        Kim, Lan. 2018. A Note on Aspectual Properties of Korean Idioms. Studies in Generative Grammar, 28-3, 433-447. This paper investigates aspectual properties of idiomatic expressions in Korean, the data that have not received much attention in the study of Korean idioms. Extending McGinnis’ (2002, 2005) observation concerning English, I examine aspectual behaviors of phrasal idioms in Korean and show that the meaning of phrasal idioms in Korean follows from the composition of their parts. If the current work is on the right track, it may offer support to the argument that has been made in generative grammar in which idioms are not just random units but may act as systematic and compositional phrases.

      • KCI등재

        标准成本法与作业成本法融合的研究

        徐香?(Xu, Xiang-Lan),金春洙(Kim, Chun-Soo) 한국국제회계학회 2017 국제회계연구 Vol.0 No.75

        With the rapid development of science and technology and the popularization of information technology, the production environment and manufacturing processes have changed significantly, enterprises increasingly rely on machines and computer control program. The proportion of direct labor costs in the product cost structure has sharply declined, while the proportion of manufacturing cost has increased substantially. With the change of product cost structure, the focus of cost control is gradually shifted from direct material cost and direct labor cost to the manufacturing cost. In order to adapt to the new manufacturing environment, establishing a scientific cost management system has become an inevitable trend. Although the standard cost method provides a cost basis for cost control and performance evaluation, it is not easy to find out the specific link of the cost variance due to too single manufacturing cost distribution standard. Therefore, it is necessary to introduce the basic idea of activity-based costing in the process of setting product standard cost. Based on the activity, the manufacturing cost of the product is allocated by different allocation ratio to ensure the accuracy of product cost accounting. This paper which is based on the standard cost method and activity-based cost method discusses the necessity for the integration of both, and describes its application in Boiler Manufacturing X Co. Ltd. to seek a new cost management model to adapt to the manufacturing environment of modern enterprises. Through the integration of standard cost method and activitybased costing method, the enterprise management goal and the specific production operation are combined to achieve the effective control of product cost.

      • KCI등재

        Verb Copying and Situation Delimiters in Chinese

        박혜선,Zhang Lan 대한언어학회 2006 언어학 Vol.14 No.2

        Park, Hyeson & Zhang, Lan. 2006. Verb Copying and Situation Delimiters in Chinese. The Linguistic Association of Korea Journal, 14(2), 115-131. Chinese has the verb copying construction, in which a verb is copied after a non-referential/non-specific object in the presence of adverbial elements such as duration and frequency phrases, or the complex stative construction. Several analyses have been proposed for this construction from both formal and functional perspectives. Among the formalists, Yi (1990) proposes that verb copying occurs to assign case to the adverbial, which is an NP in Chinese. In this paper, incorporating Yi's case approach and Wechsler and Lee's (1996) theory on 'situation delimiters', and in comparison with Korean accusative marked adverbials, we propose a new analysis of the verb copying construction. Wechsler and Lee (1996) propose that accusative marked adverbials in Korean are situation delimiters and they get accusative case due to the universal principle, Case Domain Generalization (CDG), which states that the domain of direct case for a predicate may be extended to include a situation delimiter. Contrary to Wechsler & Lee, however, we propose that CDG is not a universal principle; rather, it is parameterized depending on whether multiple accusative case checking is allowed or not in a language. Since Chinese does not allow multiple case checking, verb copying is utilized to license the situation delimiters.

      • 赤米의 Anthocyan 色素에 關한 硏究

        이란숙,박종대,박근형 全南大學校 農業科學技術硏究所 1993 農業科學技術硏究 Vol.28 No.-

        상해향혈나 赤米 색소의 식품가공용으로서의 이용가능성에 대한 기초조사로서 赤米 색소의 이화학적 성질과 총 anthocyanin 함량 측정 결과는 다음과 같다. 1. 赤米 색소 추출물은 0.1N NaOHdp 의해 청색으로 변했고, 다시 0.1N HCl을 가해보니 본래의 색으로 복원되었으며, ether와 chloroform에는 전혀 녹지 않아 赤米색소 추출물은 anthocyanrP임을 추정할 수 있었다. 2. 赤米의 anthocyan 색소는 aluminum chloride, ammonium molybdate, 그리고 lead acetate 시약 처리에 의해 청색으로 변색되어 赤米 색소는 cyanidin, delphinidin, petunidin계 中 어느 한계에 속하는 색소임을 추정할 수 있었다. 3. 赤米 색소의 흡수 spectrum은 전형적인 anthocyanin의 흡수 spectrum을 보였으며, 흡수극대파장은 530nm, ????/???? (%) 比값은 19.4를 나타냈다. 그리고 5% ???? ethanol 용액 첨가에 의해 장파장 쪽으로 이동함을 보여 이상의 분광학적인 성질을 종합해 본 결과 赤米 색소 anthocyanin은 cyanidin 계의 3-monoglucoside 배당체 임을 추정할 수 있었다. 4. 赤米 색소의 TLC와 PC 분석 결과 각각의 용매계에서 단일 spot를 보여 단일종의 anthocyanin으로 구성되었음이 시사되었으나 HPLC 분석 결과 90% 이상을 차지하는 주 peak외에 작은 peak가 인정되었다. 5. 주 색소가 cyanidin-d-monoglucoside로 알려진 자두의 anthocyan 색소를 동일한 조건의 HPLC를 행한 결과 赤米의 주 anthocyan 색소의 data와 일치하여 赤米의 anthocyan 색소는 cyanidin-3-mono-glucoside로 확인되었다. 6. 赤米 색소의 총 anthocyan 함량은 14.3% 수분량을 갖는 赤米 100 g당 cyanidin-3-monoglucoside 형태로 40.3 mg 있었다. 이상의 결과를 종합해 볼 때 赤米 색소는 cyanidin-d-monoglucoside가 주 색소를 이루었으며, 총 anthocyan 함량은 赤米 100g당 cyanidin-3-monoglucoside 형태로 40.3mg 있었다. This study investigated red rice pigments with red color as a possibility of use them in the food processing. In order to separate and identify the pigments, the red rice of sanghaehyanghyulna was extracted with hydrochloric acid in methanol. The pigments were identified as the anthocyan by qualitative test. Base on the separated pattern thin layer chromatography, paper chromatography and spectrophotometric characteristics, the main anthocyanin of red rice pigments was identified as cyanidin-3-monoglucoside. This conclusion was supported by the comparison with high performance liquid chromatography chromatogram of the plum pigments in which the major anthocyanin was reported cyanidin-3-monoglucoside. The total anthocyanin content in red rice pigments was calculated 40.3 mg/100g weight.

      • 國民精神敎育의 性格과 敎授方法的 考察

        申蘭植 順天大學校 1984 論文集 人文社會科學篇 Vol.3 No.-

        The concept and the propriety of education for national ethics as a course of study limited to the school education are concerned, and the problems on the characteristic and the teaching method of it are discoursed upon in this thesis. The Kernel of the thesis is the discourse on these question; for what education for national spirit has to be taught as a subject in schools, and how national ethics has to be internalized in the activity of classroom insturction, and what the method of teaching according with the characteristic of education for national ethics is. In conclusion, the followings are the summary of the teaching method which fish in with the characteristic of education for national ethiscs. 1) The method of teaching is to make students cultivate the ability to criticize and justify and defend the right ous crierion selected among the criteria casing complications to students, while paying regard to student' capacity of retional judgment and making the most of it. 2) Laying stress on the student's discussion, the methold of teaching is to make students extend selfregulation of the students. 3) The method of teaching is to reach agreement and deduce conclusion according to the principle of unrestraint. 4) The method of teaching is to maek the system of conviction with a will of practice.

      • KCI등재

        국내 웹검색도구의 특성 및 탐색 기능 평가에 관한 연구

        이란주,최경화 한국문헌정보학회 1997 한국문헌정보학회지 Vol.31 No.1

        최근에 국내외의 웹문서들을 대상으로 한글의 특징적인 면을 고려해서 편리하게 이용할 수 있는 국내 검색도구들이 개발되고 있다. 본 연구의 목적은 이러한 국내 검색도구들의 종류를 살핀 뒤, 이들의 특성을 파악해 이용자 입장에서 정보요구에 적합한 검색도구를 선택하도록 돕는데 있다. 검색도구를 크게 목록서비스(코시크, DIR, ZIP, 넷퀘스트21, 심마니)와 검색엔진(심마니, 까치네, 정보탐정, 애니서치, 유니파인더, 웹글라이더, 미스다찾니)으로 나누고 이들의 현황, 검색옵션과 장단점 및 성격등을 비교·평가함으로써 정보요구에 따른 검색도구 선택에 대한 방법론을 제공한다. 또한 국내 검색도구의 문제점을 지적함으로써 보다 향상된 검색도구의 설계에 도움이 되고자 한다 The purpose of the article is to help users to select appropriate Korean WWW search tools and to retrieve Web documents for their information needs by using them effectively. It analyzes the characteristics, functions, and advantages and disadvantages of each search tool, while search tools are divided broadly by two categories - subject directory services (Kor-seek, DIR, ZIP, Netquest21, Simmany) and keyword search engines (Simmany, Kachine, Jungbotamjung, Anysearch, Unifinder, Webglider, Missdachanni). It provides the selection criteria of search tools for users who have information needs. In addition, the study also attempts to contribute to the improvements in designing Korean WWW search tools, as investigating their shortcomings

      • 순천대학교 사범대학 발전 및 특성화 방안 연구

        신란식,신향근,이화자 순천대학교 1996 大學發展硏究論文集 Vol.2 No.-

        The purpose of this study was to present development plans and to draw up measures to specialize the College of Education (COE) as a teacher training institute after analyzing the problems with which COE in confronted. The plans and measures are primarily to aim attracting many students with better qualities and to assist them to have teaching jobs under the current system of Examination for Teacher Appointment. This study involved multiple data sources obtained from literature review questinnaire survey, and personal contact with the faculty of COE, Questions in the questionnaire were addressed to ask the faculty´s opinions on a curriculum, a school system in university, a practicum for teacher training, a middle and a high school attached to COE, establishing an in-service teacher training institute in COE, and other measures related to the specialization of COE. The findings of the study indicated that the following suggestions should be realized if COE is to be developed and specialized ; 1. A special selection procedure should be applied to attract students with high qualities, 2. Education for the teaching of subject matters should be reinforced and a new curriculum be developed to meet the needs of COE, 3. Appropriate measures should be devised to carry out substantial teacher training for student teachers, 4. A curriculum committe should be formed and asked to work for the management of the curriculum suitable for the specialization of COE, 5. A multi-major or a minor system should be introduced across the student´s specialization fields, 6. A department needed in COE can be established as a major area under the school system in university, 7. The establishment of a middle and a high school attached to COE should be proposed to the Ministry of Education, 8. An educational research center should be established to investigate into issue related to pro-service and in-service education continually, 9. An institute for in-service teacher training and a community education center should be established to render services to the local community, and 10. A second building of COE should be constructed to be equipped with sufficient educational facilities.

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