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      • RT-eCos 3.0 기반 고정익 UAV제어 HILS 시스템의 설계 및 구현

        김세기 韓國外國語大學校 大學院 2010 국내석사

        RANK : 247631

        TMO 모델은 잘 알려진 시간 보장성 컴퓨팅을 지원하는 실시간 객체이다. 본 논문에서는 TMO 구조에 기반한 무인비행체의 운영을 위한 OFP를 설계 및 구현한다. 무인비행체의 조종은 지상관제(GCS: Ground Control Station)로부터 받은 명령에 의하여 행해진다. FCC(Flight Control Computer)에 탑재되는 실시간 운영체제는 이미 쓰이고 있는 TMO 구조의 기본적인 태스크 모델을 지원하는 eCos 3.0을 기반으로 개발된 RT-eCos 3.0 이다. 본 조종 시스템을 증명하기 위하여 플라이트기어 시뮬레이터라는 비행시뮬레이션 프로그램을 이용하였다. The TMO(Time-Triggered Message-triggered Object) model is a well-known real-time object model for distributed timeliness computing. In this paper, we introduce the design and implementation of the OFP (Operational Flight Program) for the UAV’s navigation based on the well-known TMO scheme. Navigation of the UAV is done by the commands on flight mode from our GCS (Ground Control System). As the RTOS on the FCC (Flight Control Computer), RT-eCos 3.0 that has been developed based on the eCos 3.0 to support the basic task model of the TMO scheme is being used. To verify this navigation system, used Flightgear simulator.

      • 과학교과와 기술·가정교과의 중복 및 연계성을 위한 교육과정 및 교과서 비교 분석 연구 : 전기분야를 중심으로

        김세기 공주대학교 교육대학원 2010 국내석사

        RANK : 247631

        ABSTRACT Comparative Analysis on Middle School Curriculum and Textbooks for Overlapping and Consistency between Subjects of Science and Technology·Home Economics - With Reference to Electricity - Kim Sei-Ki Department of Physics Education Graduate School of Education Kongju National University The purpose of the study is comparative analysis on the 7th middle school curriculum and textbooks for overlapping and consistency between the subjects of science and technology·home economics especially focused on the learning contents of electricity part. We have used four 8th garde science textbooks, five 9th grade science textbooks, and six 9th grade technology·home economics textbooks to analyze the overlapping and consistency between the contents of these two subjects. The detail analysis on the contents of textbooks are ① list of contents about 'electricity' section in published 8th grade science textbooks, ② list of contents about 'how current works' section in published 9th grade science textbooks, ③ list of contents about 'fundamentals of electricity and electrical wiring', 'electrical lightening', 'safe usage and inspection of electricity', etc. sections in published 9th grade technology·home economics textbooks, ④ over all ordering of detail contents in electricity, and ⑤ rationality of learning order and redundantly overlapped contents among textbooks between two subjects. The analyzed results and suggestions are as follows: 1. In order to find the rationality of learning order we have investigated the middle school curriculum about electricity part in the subjects of both science and technology·home economics. The sequence of 8th grade and 9th grade middle school science curriculum about electric power, voltage, resistance, voltmeter, ammeter, Ohm's law, series/parallel connection of resistance, and 9th grade middle school technology·home economics curriculum about the electrical wiring, electrical lighting, appliances and safe types of usage and inspection, and finally leading to real life applications of electricity, etc is appropriate in the point of view of the learning order apparently. 2. The analysis of detail contents in both subjects of science and technology·home economics shows that science subject is more emphasized on the basic theory of scientific disciplines to study clearly regarding demonstrating the significant and loyal to the basic concepts. The technology·home economics subject is more emphasized on the techniques being used in real-life consumer safe use of equipment and also including inspection and repairing electrical appliances comparatively. 3. Although the 8th grade students have learned the fundamental theory of electricity, the 9th grade students are having difficulties to learn the electricity part in technology·home economics subject. The reason might be due to a semester gap period between 8th grade science subject and 9th grade technology·home economics subject with reference to electricity part. 4. The detail analysis between contents of all textbooks for both science and technology·home economics subjects shows that there are some differences in the title of sections of among textbooks but the detail contents of each textbook are very faithful and consistency without missing concepts and basic theories of electricity reflecting every attribute of the middle school curriculum. From the above results our suggestions to overcome such students' learning difficulties on the electricity part for both subjects are as follows. Firstly, the 8th grade science curriculum about the electricity may be fine, but the 9th technology·home economics curriculum should be continue without a long-term break from the 8th science subject to avoid losing concepts of electricity during the break and direct connecting the basic concepts to its' applications. Secondly, in order to link teaching and learning these two subjects more effectively the overlapped basic theories of electricity in the technology·home economics subject can be omitted to save the teaching time. Thirdly, the cooperation between two subjects are very important to keep students' interest on the electricity which is becoming more important in daily life of their future. 초록 과학교과와 기술·가정교과의 중복 및 연계성을 위한 교육과정 및 교과서 비교 분석 - 전기 분야를 중심으로 - 공주대학교 교육대학원 물리교육전공 김 세 기 본 연구에서 사용된 교과서는 제7차 교육과정에서 사용하고 있는 중학교 2학년 과학 교과서 2학년 4종, 3학년 5종과 중학교 3학년 기술․가정 교과서 6종을 선정하였다. 연구 과제는 7차 교육과정의 중학교 2, 3학년 과학 교과와 중학교 3학년 기술․가정 교과의 내용 중에서 전기 관련 내용들을 비교 분석하여 중복 및 개선할 점들에 대하여 연구하였다. 각 교과서의 내용 구성을 알아보기 위하여 ① 2학년 과학 교과의 ‘전기’ 단원 내용들에 대한 출판사별 교과서의 세부적 나열, ② 3학년 과학 교과의 ‘전류의 작용’ 단원 내용들에 대한 출판사별 교과서의 세부적 나열, ③ 3학년 기술․가정 교과의 전기․전자 기술 단원 내용들에 대한 출판사별 교과서의 세부적 나열, ④ 교과별 전기 관련 세부적 내용 순서 나열, ⑤ 교과별 이수 순서의 합리적 여부 및 중복의 여부를 비교 분석하였다. 그 결과 및 제언은 다음과 같다. 1. 학습 시기에 따른 순서상 문제점 고찰 결과는 중학교 2학년 과학 교과에서 전기의 기초 이론인 전원, 전압, 저항, 전압계, 전류계, 옴의 법칙, 저항의 직렬·병렬 연결 등을 배우고 중학교 3학년 기술·가정 교과에서 전기 기초 이론과 전기 배선과 조명, 가전 기기의 종류 및 안전한 사용법, 점검 등 실 생활의 응용으로 이어지기 때문에 학습 순서상으로는 문제가 없는 것으로 나타났다. 2. 과학 교과와 기술·가정 교과의 전기 분야 내용을 검토한 결과 과학 교과는 기초 이론을 명확하게 학습하도록 기본 개념들에 충실하였음을 보여주고 있고, 기술·가정 교과에서는 기초 이론보다는 실생활에 사용하고 있는 가전 기기들의 안전한 사용법, 점검 및 수리 등 응용 전기 분야에 비중을 많이 두고 있는 것으로 나타났다. 3. 학생들이 중학교 2학년 과학 교과에서 전기 기초 이론을 학습하였음에도 3학년 기술·가정 교과에서 전기 응용 분야의 내용을 어려워하는 원인을 분석해 본 결과 학생들이 중학교 2학년 과학 교과에서 전기 기초 이론을 학습한 후 한 학기만큼의 전기 분야 학습의 공백 기간이 지나서 전기 응용 분야의 학습을 하는 것이 이유인 것 같다. 4. 교과별 전기 분야의 각 교과서의 세부 내용들의 차이점들에 대한 분석 결과는 중단원들의 제목은 교과서마다 특성 있게 사용되었지만 세부 내용들은 기본 이론에서 벗어나거나 누락된 것이 없이 모든 교과서들이 충실하게 내용수록을 한 것으로 나타났다. 이상의 결과로 볼 때 학생들이 전기 분야의 학습을 어렵게 대하지 않고 학습에 충실할 수 있도록 하기 위해 다음과 같이 제언 하고자 한다. 첫째, 중학교 2학년 과학 교과에서 전기의 기초 이론 학습은 현행대로 기 본 개념을 습득하도록 진행하고, 바로 긴 공백 기간 없이 기술·가정 교과의 전기 응용 분야 학습이 이루어지도록 연계하는 방법을 모색해야 한다. 둘째, 과학 교과와 기술·가정 교과의 연계 학습이 이루어지면 기술·가정 교과에서 중복되어 나오는 전기 기초 이론은 삭제하여 학생들의 비효율적인 재학습 시간을 줄이는 것이 바람직 할 것이다. 셋째, 미래는 현재보다 더 많은 전기가 사용될 것이 명백함으로 전기 분야에 흥미를 잃지 않도록 두 교과는 깊이 있게 협조하여 학생들의 전기 분야 학습에 최선을 다 하여야 할 것이다.

      • 學校 組織健康과 敎師의 職務滿足과의 關係

        김세기 忠南大學校 敎育大學院 1984 국내석사

        RANK : 247631

        A. The purpose of study This study is to find school organizational health and teacher's job satisfaction and so to examine what relationships can exist between school organizational health and teacher's job satisfaction. B. Research problems were as follows; 1. To find the degree of school organizational health. 2. To find degree of teacher's job satisfaction. 3. To find the relationships between school organizational health and teacher's job satisfaction. C. Methods The subjects of this study were 284 secondary school teachers and 33 principals and vice Principals 199 subjects of them were men, and 132 subjects of them were private school teachers. In order to find the degree of school organizational health, the Korean version of Organizational Health Questionaire (OHQ) which was originally developed by Prof. Holmes and consisted of 100 items was administered to the above subject. The reliability of the instrument was .95. In order to find teacher's job satisfaction, a form of job satisfaction questionaire(Minnesota Satisfaction Questionaire), which consisted of 20 items and devised to the same subject by Kyung Dong Kim, was administered to the above subject. T-test, Analysis of variance, and Pearson's r were treated in order to find the research problems of this study. D. The results of study 1. The school organizational health was revealed healthy. There were differences in organizational health according to school levels and places where schools were located. And also in terms of the school organizational health of the above subject, many differences were in sex and career, but not in position. In detail of subvariables of the organizational health, the perception of the organizational health of respondents in private school was less than that of those in public schools in Goal Focus, Resource Utilization, Adaption, and Problem Solving Adequacy. And men's perception of the organizational helath was less than women's perception in Goal Focus, Cohesiveness, Morale, and Innovativeness. The perception score of those with above 21 year-teaching experience was the highest of all and that of those with experience of 11 to 20 years was the lowest in Goal Focus and Adaption. And the perception of those with experience of less than 10 years was less than that of those with experience more than 21 years. 2. The degree of teacher's job satisfaction was generally low, especially in subvariable Salary, Welfare, the Amount of Tasks. The degree of teacher's job satisfaction was different among their sex, career, and position they have, but not among subgroups of schools. So the researcher says that the degree of teacher's job satisfaction depends on their personal backgrounds. In detail of subvariables men were less satisfied with Salary, School Administration, Opportunity for Promotion, and Stability than women were. The more experienced were more satisfied with Salary, Stability, School Administration, and Style of Supervision than the less experienced. Only in Subvariables of Opportunity for Promotion, the degree of satisfaction of the less experienced was higher than that of the more experienced. The degree of teacher's job satisfaction was less than school administrators in subvariables of Welfare and Human Relation. 3. The healthier school organization was, the higher the degree of teacher's job satisfaction was. This means that the relationships between two factors were high. The subvariables of organizational health which had greater relationship with teacher's job satisfaction were Goal Focus, Communication Adequacy, and Resource Utilization. And the satisfaction subvariables which had greater relationship with school organizational health were Communication, Style of Supervision, and School Administration. E. Conclusions and Suggestions 1. There should be a streategy for improving school organizational health, especially in terms of Morale and Cohesiveness. 2. There should be an incentive for improving the degree of teacher's job satisfaction, especially in terms of Salary and welfare. 3. There should be an incentive for improving the degree of male teacher's job satisfaction. 4. There should be a strategy for improving private school health.

      • 미국 신체육 운동의 이론적 토대와 사상

        김세기 경상대학교 대학원 2011 국내박사

        RANK : 247631

        It's been about 100 years since physical education positioned itself as one of the important curriculums in the Korean educational system. It has been put into practice based on a philosophy called New Physical Education which was introduced from the U.S. after Korea regained independence in 1945. Despite the fact that New Physical Education theory played the key role in justifying the existence of physical education in curriculum of Korea, there has not been any literature or data to clearly enunciate the theoretical and philosophical basis of physical education. The situation around physical education being as such, this research has been done in order to clarify the theoretical basis and philosophical background of New Physical Education. The result of the research is summed up as follows; Firstly, New Physical Education theory was founded on the biological thought of keeping and promoting health by training one's body through physical activities. This theory jumps out of the boundary of the biological concept of the goal of physical education, that is, physical training, and extends its range to cover philosophical and sociological goals. The theory, however, doesn't negate the concept of the biological value of physical education. Thus, the biological thought of "education of physical" should be viewed as the founding theory of the philosophy of New Physical Education. Secondly, the most important theoretical basis of the concept of New Physical Education was play theory. The change in the paradigm of physical education from 1918 to 1939 has brought the age of New Physical Education, and at the heart of the basis of this theory lies play theory. This reflects the recognition that play is the significant activity that leads to a child's emotional and social development. Following such tendencies, the physical education moved its emphasis from former activities mainly consisting of gymnastics-centered training to activities such as play, games and sports. Lastly, one of the key ideas behind the establishment of New Physical Education theory was Muscular Christianity. L. H. Gulick(1865-1918), T. D. Wood(1865-1951), and C. W. Hetherington(1870-1942) contributed largely to the establishment of New Physical Education in the U.S., whose theories were later formulated by J. F. Williams(1886-1966), J. B. Nash(1886-1965), and others. They appreciated the educational value of play, which greatly affected the spreading of awareness that a variety of play, games, and sports are important means of physical education. Gulick, being a muscular Christian himself, recognized the importance of sports education and led the sports education movement at schools and YMCAs, directly influencing the establishment of New Physical Education philosophy. In this respect, Muscular Christianity can be regarded as one of the important ideological foundations of New Physical Education philosophy.

      • maSMAbots 구성을 위한 유전 알고리즘

        김세기 강릉대학교 대학원 2009 국내석사

        RANK : 247631

        통상 로봇은 모터나 실린더를 이용하여 움직이지만, 자연계의 동물은 근육의 수축 및 이완 작용에 의해 움직인다. 일정 온도가 되면 기억된 형태로 되돌아가는 형상기억합금의 원리를 이용하면 근육과 같은 구동장치로 움직일 수 있는 로봇을 구성할 수 있다. 이 연구의 목표는 형상기억합금을 구동장치로 사용하는 벌레나 곤충과 같은 형태의 로봇(maSMAbots)을 만드는 것이다. maSMAbots(multiple articular shape memory alloy robots)은 형상기억합금을 구동장치로 사용하는 다관절로봇이다. maSMAbots은 사용자의 요구나 사용하려는 용도에 따라 그 형태가 매우 다양하다. 이 경우 로봇의 다리 위치, 길이, 형상기억합금의 길이, 굵기 등을 어떻게 정하는가에 따라 로봇의 에너지 소비량 등의 조건이 달라진다. 본 논문에서는 사용자의 요구나 용도를 만족하는 로봇의 구성을 찾는다. 특정 조건을 충족하는 최적의 로봇 형태를 구성하는 것은 많은 매개변수를 포함하는 비선형문제이다. 비선형문제의 최적화를 위해서 자연도태 원리 기반 최적화 방법인 유전 알고리즘을 이용한다. maSMAbots에 유전 알고리즘을 적용하기 위해서 먼저 maSMAbots 다리와 형상기억합금의 재료 특성을 고려한 역학 기반의 수치모델을 제안한다. 제안한 수치모델을 기반으로 maSMAbots의 마디, 다리, 근육, 및 마디 연결 유전자의 염색체를 설계한다. 다음으로 생성된 로봇이 요구조건에 부합되는 정도를 측정하기 위해 적합도함수를 설계하여 유전 알고리즘을 이용해 효율적인 maSMAbots 구성을 찾는다. 그리고 구현한 시스템으로, maSMAbots 진화 이외에도 시각화인터페이스를 사용하여 주어진 maSMAbots의 염색체에 대응하는 모습과 특징을 나타낸다. The robot operates with actuator using motor or cylinder, but the animal kingdom operates with muscle using principle of contraction and relaxation. If robot use principle of shape memory alloy should that return to the memorized shape when definite temperature become, it move with actuator like muscle. In this goal of research, we implement the robot(maSMAbots) like bug and insect using actuator of shape memory alloy. maSMAbots(multiple articular shape memory alloy robots) is various user and requirement. Therefore, if we compose different configuration which leg & shape memory alloy length, thick, and distance, energy consumption and etc. requirement change. But, it is not easy to compose optimized robot that is suitable these uses. It is nonlinear problem with many parameter that compose optimized robot shape is satisfied with specific condition. For optimization of nonlinear, we use the genetic algorithms which are natural selection principled base optimization method. In order to apply genetic algorithms in maSMAbots, it propose numerical value model based on mechanics with considers maSMAbots leg and shape memory alloy. We design maSMAbots chromosome of segment, leg, muscle, and articular gene based on proposed model. In order to measure a degree of suitable requirement, fitness function designs and we search efficient maSMAbots configuration using genetic algorithms. And to the configurating system, it display maSMAbots shape and property using visualized interface instead of maSMAbots evolution.

      • 아파트 세대별 분양가격 산정방안에 관한 硏究

        김세기 建國大學校 不動産大學院 2002 국내석사

        RANK : 247631

        The house is a complex material. The physical, local, and environmental features of house is cause by the indivisibility of house consumption and it is not easy to estimate the individual cost of the features. One of these attempts is the study to determine the estimated value to compensate the damages by disturbance of a right to enjoy sunshine and to take a view, noises, and vibrations. There are also many studies that the individual features, among the price-setting factor of house, have an effect on the house value. Therefore, this research is to investigate how to estimate the internal value of house, compositely considering the individual features. The existing research didn't check over the effective value by generations. But, for the exact evaluation this subject, it is applied to the objective analysis through the measurement. The method is to estimate the effective value by generations about the price-setting factor of house like the sunshine, view, and so on. With the analysis about the price-setting factor, all kinds of factor are considered as the important elements to determine the economic value, based on the price of the apartment market. Then it is suggested which method the selling price by generations of a house for installment sale is properly calculated from the effective gap by factors in market. The price is to be created with the graded evaluation of the selling price, according to the effective value by generations. But the most suppliers are still provided the uniform and even price. The selling price is applied the price of the royal grade by disregarding the effective gap due to the difference of the effective value by generations and applying the unreasonable price. Then the absurdity of price is appeared and caused by the value of non-royalty in point of the actual trade. There are some attempts to reflect the grade and the direction to price, but it is not enough to show the actual discrimination between consumers or residents. As a result, it is required to investigate the price-setting factor for the target of house and to introduce the method, which is to grade and evaluate the selling price with the measured outcomes of the factors - the sunshine, the view, and so on - according to the effective value by generations. There are still the same difficulties and limitations during collecting data as the studies about the house price. The utmost need is the fundamental information network about the several factors which are influenced on the house environment and as follow: the map of the development house, the structure of floors, the direction and so on. Because of the exact analysis by factors to set the price, the apartment features of this year is actually understood. When the gap rate of the factors to the same kind apartment is analyzed within the real neighborhood and the same area for demand and supply, the result is over or under-estimated without the features of house. In this cases, it need to be figured out the gap of effective value by factors in local markets, thoroughly investigating the preliminary and market examinations. This research is only suggesting the basic method to analyze the price-setting factor and to evaluate the graded price by generations within the same area of development apartment. The calculation method of effect index is vigorously used to the real work but is not concerned the weight by factors. Besides, it is subjectively determined by the evaluators for lack of the exact evaluation and examination of the effect index by factors and generations. Therefore, to estimate the graded evaluation of the selling price by generations, it is required to make out the gap rate by factors with the better and reasonable method. Now this research comes to an end and the following subject is to study and apply the gap rate by factor from the database, investigating the apartment price and the various elements with the effect on that price.

      • 기상, 국외 및 국내 배출 변화에 대한 PM2.5 농도의 1차 및 고차 민감도 분석 : 1차 미세먼지 계절관리제 기간

        김세기 아주대학교 2023 국내석사

        RANK : 247631

        본 연구에서는 대기질 모사를 활용하여 국내 PM2.5 농도 변화에 대한 국내외 배출 변화와 기상 변화의 단일영향과 교차영향을 분석하였다. 2018년 12월 ~ 2019년 3월 기간 평균 국내 PM2.5 농도는 25.0 ㎍/㎥이었으며, 2019년 12월 ~ 2020년 3월 기간 평균 국내 PM2.5 농도는 20.6 ㎍/㎥로 2018년 12월 ~ 2019년 3월 대비 4.4 ㎍/㎥ 감소하였다. 4.4 ㎍/㎥ 감소에는 국내외 배출의 변화와 기상의 변화의 영향이 모두 포함되어 있다. 국내 PM2.5 농도 변화에 대한 기상 변화에 의한 영향은 –2.1 ㎍/㎥로 세 요인 중 가장 크게 나타났으며, 국내외 배출 변화의 영향은 각각 –1.1, -0.5 ㎍/㎥로 나타났다. 세 요인의 영향을 더하면 –3.7 ㎍/㎥로 국내 PM2.5 농도 변화폭과 0.7 ㎍/㎥ 차이가 난다. 즉 세 요인 사이에 Cross-term이 존재하였다. 두 요인 간에 존재하는 Cross-term은 요인별 단일영향의 최대 58%에 해당하였으며, 세 요인 간 Cross-term도 국내 배출 변화의 11%에 해당하는 수치로 나타났다. 요인 간 Cross-term은 Cross-term을 고려하지 않는 방법을 활용한 영향요인 분석 시 마지막으로 계산되는 영향요인의 불확도로 이어질 수 있다. 정책효과 분석의 정확성을 높이기 위해서는 변화요인에 대한 분석이 우선적으로 이루어져야 한다. 이러한 이유로 국내 PM2.5 농도 변화 요인 분석 시 Cross-term을 고려한 방법을 사용하여야 한다.

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