시멘틱 웹 환경에서의 온톨로지 기반의 정보검색

정은경,김영민,변영철,이상준,박경린 濟州大學校 基礎科學硏究所 2003 基礎科學硏究 Vol.16 No.2

온톨로지는 시멘틱 웹을 구현하기 위한 이론이다. 온톨로지는 웹자원의 효과적인 검색, 통합, 재사용을 위한 새로운 기술이고 사람과 이질의 응용 시스템 간에 지식을 공유하고 재사용하기 위한 방법을 제공한다. 온톨로지의 역할은 특별한 개념을 명세화하는 것이다. 도메인과 일반적인 온톨로지는 정보와 지식 시스템을 분석하고 디자인하는 측면에서 공유, 통합, 재사용될 수 있다. 본 연구는 제주도의 숙박과 관광정보를 위한 온톨로지를 디자인하는데 목적이 있다. 그리고 제안된 온톨로지 기반으로 인터넷 웹 검색 시스템을 만드는데 목적이 있다. 본 연구에 의해 클라이언트가 사용하는 표현은 다르지만 뜻이 같은 동의어에 의해 같은 결과를 얻을 수 있다는 것을 알게 되었다. Ontologies are formal theories that are suitable for implementing the semantic web. Which is a new technology that attempts to achieve effective retrieval, integration, and reuse of web resources. Ontologies provide a way of sharing and reusing the knowledge among the people and the heterogeneous application systems. The role of ontologies is that of making explicit specified conceptualizations. In this context, domain and generic ontologies can be shared, reused, and integrated in the analysis and design stage of information and knowledge systems. This study aims to design an ontology for juju lodges and tour, and build an Internet web retrieval system based on the proposed ontologies. This study found that we can take the same result for synonym that cilent use.

에이전트 기반의 맞춤형 교육 시스템

김은경,허선영 한국기술교육대학교 2006 論文集 Vol.12 No.1

According to the rapid popularization of the internet, recently the number of web-based remote education systems are rapidly increased. And demand for the customized educational service suitable for individual learner's level and learning pattern is increasing. Meanwhile, most remote education systems do not provide adequately customized educational service fit for each learner's level and lots of learners easily lose their interest in studying. Therefore, many researchers have used agents to provide personalized educational service by analyzing learner's level and learning pattern automatically. In this paper, we designed and implemented an agent-based customized education system(ACE) for individual learning. ACE tries to provide more suitable and individually customized learning contents by dividing learners' level into 5 stages and reproduces new learning contents on section unit instead of chapter unit. Also, ACE encourages learners' participation by providing proper feedback and sending e-mails including each learner's studying stage and learning target regularly.

대전지역 대학생의 학교 식당 이용실태 및 만족도 조사

왕수경,임영희,윤은영,구난숙,박선미 대전대학교 생활과학연구소 2000 생활과학연구 Vol.6 No.-

The aspects and satisfaction on university foodservice were investigated to provide basic information for better foodservice in university by questionnaires. The survey was conducted in Daejon, and data were analyzed by SAS. Although 87.3% of subjects were under foodservice, only 2.0% of them preferred the foods served in university. The most favorite reason for foodservice was indicated as no need on lunch bag(31.1%) and frendship of classmates(25.5%). The most unfavorite reason for foodservice was indicated as bad taste of foods(68.7%) or many dislike foods(13.2%), also dirty eating place(7.7%). The subject liked ssalbap, baechu kimchi, beef foods. The acceptance about kongbap, yulmu kirnchi, beef products was higher in men than women(p<0.05). The preference of mieokkuk was higher in women and that of beef soup was higher in men(p<0.05). The degree of satisfaction was lower in men than in women about the amount of foods(p<0.001). Also the degree of satisfaction was lower in women than in men about sanitary condition of eating place. 54.6% of them had taken the unwanted materials in foods and 3% of them experienced the deteriorated food. The results suggest that food preference of subjects should be considered in meal planning and various cooking method should be utilized to enhance taste of foods for better foodservice. Also, the importance of various foods intake must be periodically and continuously taught to them through nutrition education.

중학생의 특기·적성 교육 활동 참여 실태와 여가 만족

김경애,정난희,모은자 한국 가정과 교육 학회 2003 한국가정과교육학회지 Vol.15 No.2

본 연구는 중학생들의 특기ㆍ적성 교육 활동 실태를 파악하고 여가만족과의 관계를 규명함으로써 여가 선용 및 특기ㆍ적성 교육 효과를 극대화 시킬 수 있는 방안을 제시하기 위한 기초 자료를 제공하고자 하였다. 본 연구에서 얻어진 결과는 다음과 같다. 1. 사회인구학적 변인에 따라 특기ㆍ적성 교육 활동 참여 실태는 여학생이 남학생보다 참여율이 높았고, 읍, 면 지역 중학생들은 모두가 참여한 반면에 광역시 중학생은 절반 정도만이 참여하였으며 시 지역에서는 거의 대부분이 참여하지 않는 것으로 나타났다. 가족의 소득이 높은 집단이 특기ㆍ적성 교육활동에 대한 참여율이 낮았으며, 부모의 학력이 높은 집단도 특기ㆍ적성 교육 활동 참여는 낮았다. 2. 사회인구학적변인에 따른 여가만족의 차이를 보면 심리적, 교육적, 사회적, 휴식적, 생리적, 환경적 만족의 6개 하위영역 중에서 읍, 면 지역 거주학생들이 광역시나 시 지역 학생들보다 높게 나타났다. 학년별로는 1학년 학생이 교육적 만족, 환경적 만족이 높았고, 가족의 소득이 높고 아버지의 학력이 높은 집단에서 여가만족이 더 높은 것으로 나타났다. 3. 특기ㆍ적성 교육 활동 참여 동기에 따른 여가만족은 참여 동기가 자신의 적성에 맞거나 진학을 위해서라고 하는 자발적인 의사결정의 결정에 높게 나타냈다. 참여 기간에 따라 참여 기간이 4개월 미만인 경우 높은 만족을 나타냈고, 집중도에 따른 여가만족에서는 모든 영역에서 집중도가 높은 집단의 여가만족이 높게 나타났다. The study has examined the relationship between the middle school students' after school activities and leisure satisfaction to provide the opportunity of making good use of leisure time and of developing students' latent talent and aptitude. The research finding are as follows : 1. Based on socio-demographic variables, the female students had more rates of participation in talent and aptitude educational activity than male students. The number of the students from rural areas was much bigger than that of cities such as Gwangju or other big cities in Chonnam. But the students whose parents made a lot of money showed less interest in participating talent and aptitude educational activities. 2. Based on the research of socio-demographic variables, students from counties or smaller areas showed more satisfaction than Gwangju in leisure satisfaction among the six subordinate categories. 7th graders were more satisfied in educational and environmental leisure activities than 8th or 9th graders. Moreover, as the family income is higher and as the father's educational level is higher, satisfaction rate from leisure activities cam out to be higher. 3. In regard to satisfaction they get from their leisure activities, it was comparatively high when they had the activities voluntarily as their hobbies or for fun. Some students regarded it as their chances for the next step and they were really satisfied, too. And also the period of time was one of the factors that affected students satisfaction. They were satisfied enough when they had the activities less than four month in a year. The students who had strong concentration and great enthusiasm showed high leisure satisfaction in all areas except for the environmental one.

Negative Energy State in 4+D dimensional toroidally compactified (K?=0)K-K Theory

박은경,권병성 慶星大學校 1996 論文集 Vol.17 No.4

It is shown that the 4+D dimensional K-K theory with toroidally compact (K?=0) internal space admit negative energy state, which implies that the M⁴×T? K-K vacuum is semiclassically unstable.

梓木이 腦血流 및 血壓에 미치는 影響

황경택,경은호,나한일,소응향,최병화,한종현 한국전통의학연구소 2003 한국전통의학지 Vol.13 No.1

The purpose of this study is to measure the changes of regional cerebral blood flow (rCBF) and blood pressure (BP) in rats, following the intravenous injection of Catalpa Ovata Water Extract (COWE). The measurement was continually monitored by laser-doppler flowmeter (Transonic Instrument, USA) and pressure tranducer(Grass, USA) in anesthetized adult Sprague-Dawley rats through the data acquisition system composed of MacLab and Macintosh computer. The result of this experiment was as following : COWE increased the changes of rCBF and BP significantly. After pretreatment with propranolol and indomethacin, the changes of rCBF were inhibited significantly, but not by L-NNA and methylene blue. Also, after pretreatment with propranolol, the changes of BP were inhibited significantly, but not by L-NNA, methylene blue and indomethacin. According to above result, it is considered that Catalpa Ovata increased the rCBF and BP, related to adrenergic β-receptor.

대학 전산 정책의 방향설정 및 추진계획에 관한 연구

홍상은,이병수,조충호,이상정,주경수,안종근,황순기 순천향대학교 1994 논문집 Vol.17 No.1

It has been rapidly given to the importance of the embodiment of the efficient computer systems in university education. Since the recent trend of the adoption of the openess policy in university education systems significantly affects on the realization of the embodiment of the efficient computer systems which is very essential to promote the international competition in many areas of university education. So it is greatly needed that our Soonchunhyang university must have the following principles for the embodiment of the efficient computer systems. (1) It is required that the appropriate computer education and the good quality of research environment must be given. (2) The establishment of the synthetic computer network system for efficient the university administrations is needed. (3) It is needed to establish the computer system for the consideration of the future performance. (4) It is also needed to improve the organization and the administration systems of the university computer center. (5) It is required on the establishment of the local area network(LAN) systems in the Soonchunhyang university, and the LAN must be connected to other outer national and international computer systems. And we propose the following requirement for the establishment of the convienent computer systems in our university and we have been greatly though about the significant change of the environment in university computer system. [1] The subject of the basic computer must become as the required subject for the all students in the curriulum. [2] The new computer systems both in hardware and software must be introduced. [3] It is needed to the change of the present name of the university computer center into the university information and computer center. And its organizations must be furthur developed [4] The training center for the university emploee is also needed. [5] The establishment of the database systems for the automtion of the university administation is needed. [6] It is strongly required on the establishment of the local area network system in the Soonchunhang university to connect the Bitnet and the Internet through the Hankook communication. [7] The computerization for the central library is needed. The indepent local area network system for the library is also needed to establish the own database system. Finally we hope that the LAN will be connected to the national wide library computer system.

旋盤作業에서의 FFT Analyzer에 의한 表面거칠기 解析

崔殷淳,金敬年 한국비파괴검사학회 1992 한국비파괴검사학회지 Vol.12 No.3

This paper shows that the identified and unidentified components of surface roughness in NC turning lathe which can not be analyzed in time domain such as Rmax, Ra can be isolated in frequency domain by FFT analyzer. By interfacing FFT analyzer with stylus surface roughness instrument, surface roughness on change of working condition, especially tool feed, such as 0.1, 0.15, 0.2, 0.25, 0.3(mm/rev) can be analyzed in frequency domain as follows. 1. By frequency analysis of surface roughness profile, the basic wave length of surface roughness can be obtained to isolate the identified and unidentified components of surface roughness. 2. With increase of tool feed, the unidentified components of surface roughness increase. 3. Since Rmax, which can be obtained by stylus surface roughness is proportion to the output voltage of FFT analyzer, FFT analyzer also can be used to measure surface roughness in time domain such Ra, Rmax.

태스크 모델링에 기반을 둔 전문가시스템 개발기법

김은경 한국기술교육대학교 1998 論文集 Vol.5 No.1

In order to overcome the problems with first generation expert systems at the symbol level, recently various knowledge level development techniques of second generation expert systems have been proposed. But, these techniques are conceptual modelling techniques. This paper modifies and complement these conceptual modelling techniques and proposes a Task Modelling (TM) technique as a practical knowledge level expert system development technique. This paper defines a Task as a knowledge unit consisted of a goal, execution conditions, behaviour knowledge, and so on. And, this paper defines a Task Diagram to depict structural, dynamic, and functional aspects of task easily. This paper also defines Inference Types as basic units to describe behaviour knowledge of tasks. Also, this paper proposes task processing algorithm based on the state of tasks and implements a task debugger.

個別化 授業을 위한 CAI 프로그램 開發 硏究

주경수,윤은진 순천향대학교 1994 논문집 Vol.17 No.1

The purpose of this study is to develop the computer-assisted instruction(C.A.I) progrom. And the program can give individualized instruction to learners who need individual learning and can help conquer learning shortage. Therefore we selected the extent and circumference of a plane figure among learning contents in Elementary School mathematics, designed the courseware of tutorials, and developed the CAI program with the GREAT, authoring tool, We developed the program through the steps as follows : analysis and investignton on the foundation environment, selection of learning contents, creation of learning goals, analysis of learning subject, design of teaching and framing of flowchart, development of valuation tool after the work, programming, amendment and complement. This study offerd an opportunity through which students were able to understand the difficult part step by step through animation techniques, helps save learning time through smoothing the process of learning progress with the keys such as front picture, process, order and so on, and is helpful to the perfection learning through feedback.