인터넷을 중심으로 한 ICT 기반 수업 전략

김영환,김광휘 釜山大學校 敎育硏究所 2001 敎育硏究 Vol.11 No.1

For an ideal ICT education, the development of alternative and strategies toward internet based instructions will be needs. However, the essential factor of instructions is that there should be more considerations and cares for learners, and thus more improved quality of instructions. Internet based instruction is part of those attempts. The basic condition for internet based instructions is the fulfillment of various factors for good instructions. Strategically, they are effectiveness for better instructions, efficiency between teacher’s and student’s performances, attractiveness for exiting learners’ and teachers’ interactions, and morality in means and contents. They are microscopic factors. The example of macroscopic factors is the reliance and empathy between teachers and students. A good teacher will be free from external restrictions and steadily use the internet or other ICT environments to make the best ICT based instructions.

학령 전 영어교육에 대한 학부모·교사·전문가의 인식 비교

김광웅,박희현 숙명여자대학교 아동연구센터 1998 兒童硏究 Vol.12 No.1

This study is aimed to compare the recognition among parents, teachers and professionals on the preschool English education. The subjects of the study were chosen 256 parents who have kindergartener, 199 teachers who in kindergartens and 64 university professors who major in English education or child education in Seoul and Kyungki areas. The study was performed with a questionnaire designed by this reseacher. The data was analyzed with percentage, one-way ANOVA, Duncan's multiple range test, t-test and χ^2-test. The results of the study are summerized as follows; 1) The majority of parents and teachers are performing the preschool English education by the educational policy of kindergarten's director. There were significant difference in the level of satisfaction among three groups for the preschool English education. The level of satisfaction for the preschool English education showed that the teachers are higher than the parents and professionals. 2) There were significant difference in the need of the preschool English education among the three groups. The parents were recognizing more than the teachers and professionals in the need of the preschool English education. 3) The majority of the parents think that the beginning age of English education start from the preschool period. The teachers showed similar percentage between in the preschool age and the elementary school course. The majority of the professionals think that the beginning age start after admission to elementary school course. 4) The majority of the parents and professionals responded to appropriate kindergarten in learning institution of the preschool English education. The teachers showed similar rate between in the kindergarten and the private educational institution. 5) The parents, teachers and professionals think that the most important aim of preschool English education is to activate the interest and motivation of child in English. 6) The parents, teachers and professionals think that the most appropriate content of preschool English education is listening and speaking of simple sentences. 7) The parents think that the appropriate methods of preschool English education is to use role play and picture cards or blocks in teaching aids. The teachers and professionals think that the appropriate methods of preschool English education is to use game, song and finger play. 8) The parents and teachers recognize that they get useful information from TV, radio, newspapers and magazines on preschool English education. The parents and teachers have level of average concern and knowledge about preschool English education. 9) The parents and professionals recognize that the most serious problem of preschool English education is lack of English teacher's pronunciation and practical use in English. On the other hand teachers think that the most serious problem of preschool English education is lack of parents' recognition for aim and method of preschool English education. 10) The majority of the parents, teachers and professionals think that main effect of preschool English education is to activate the interest and motivation of child in English. Also the majority of the parents and teachers think that preschool English education is effective in English education of elementary school. The professionals showed similar percentage between positive and negative response in effect of preschool English education.

통합 망관리 시스템 지원을 위한 Managed Object Definition에 관한 연구

김종만,김태수,이광휘 창원대학교 정보통신연구소 2001 精報通信論文集 Vol.5 No.-

This paper presents a system for internetworking between different network management protocols. The internetworking system between SNMP and CMIP has been designed. SNMP has been used as a standard protocol in Internet while CMIP in OSI network. It is not easy to interoperate SNMP and CMIP because these protocols have several different aspects. So, definition method of integrated managed object to support several different domain managers in the grammar level has been proposed in this paper. In this paper, we propose technique to make new template, "macro" template. This template can include SNMP notation with minimum reformation. The package template is also extended and added for additional rules for SNMP domains. Through this approach, benefits of serving different services can be provided to several domain managers by modifying interfaces.

네트워크 시뮬레이터를 이용한 확장 QoS 제공 라우팅 프로토콜의 설계 및 구현

김현주,이광휘 국립7개대학공동논문집간행위원회 2004 공업기술연구 Vol.4 No.-

Recently, various multimedia applications including a lot of QoS requirements have been emerging. However, the existing routing protocols are insufficient and inadequate to calculate the path that satisfies these QoS constraints. Therefore, this study has proposed a QoS routing protocol that can select an appropriate path satisfying the QoS requirements of some multimedia applications. The proposed protocol and methods have been implemented on a network simulation tool called NetDAS. It has the functionality to predict the possible problems and performance of network devices and links in QoS-aware environment. For this approach of QoS support routing protocol, existing OSPF has been modified and expanded. Bandwidth and delay metrics that are the representative QoS requirements have been considered to calculate the cost for path selection. The NetDAS has been used to analyze the performance of proposed protocol. Simulation and results have shown that the proposed routing protocol decreases the number of QoS request packet drop and lowers delay variation in comparison with existing OSPF. Also these have proved that transmission of QoS request packet by proposed routing protocol is well accomplished an stable than existing OSPF.

작업일보를 이용한 현장관리시스템 개발에 관한 연구

나광수,김태희,김선국 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1

The management of working manpower is very important due to the variety of work trades and activities. Although various project management systems have been developed to effectively deal with various tasks in site, they are not in practical use due to the non-cooperative attitude of sub constructors. This is the reason the systems are not developed in the focus of sub constructors, but main constructors and the detail information about daily report is omitted or lost in the collection process by constructors. Therefore, this paper is to propose a system that collects the information about daily reports prepared by sub constructors and uses it to manage sub constructors' workers efficiently. The sys is applied to manage, based of internet, the workers in site by real time.

페루프 운전 복권형 하이브리드 스테핑 전동기의 토오크 리플에 미치는 Lead Angle의 영향

우광준,유정봉,김규희 단국대학교 1997 論文集 Vol.31 No.-

In this paper, we estimate the influence on torque ripple in the closed-loop drives of 2 phase bifilar-wound hybrid stepping motors by lead angle control method. We propose an instantaneous phase current equation which is the function of lead angle with respect to motor speed and motor time constant. We show that torque ripple rate is greatly reduced by the optimal lead anglecontrol method from the computer simulation results.

동적 그룹 지원을 위한 계층적 그룹통신 프로토콜

이광휘,조현주,김한수 昌原大學校 基礎科學硏究所 1995 基礎科學硏究所論文集 Vol.7 No.-

This paper presents a hierarchical group communication based on multicast protocol, HGCMP. Group communication facility has been gradually magnified. As an object oriented approach has been introduced in designing the system, it provides an application programmer with the means to develop a new application facility without having to build the detail functions. In this paper, some requirements for multicast communication, the structure of the system, and service primitives will be described in detail. As the number of manager can be dynamically created and destroyed relying on the requirement, the system can efficiently be operated. Also the use of hierarchical structure has a advantage. Appropriate management functions can be allocalted to each management level. The manager in the highest domain totally performs configuration, fault, name service and perfomance management functions. The lower managers perform these management functions on the managed objects in the corresponding level host machine. Multicast facility designed in this paper is for supporting a distributed network management system.

C++를 이용한 통신 시뮬레이터의 설계 및 구현

이광휘,정상국,안정희,김한경,이종근 國立 昌原大學校 精報通信硏究所 1998 精報通信論文集 Vol.2 No.-

In this paper, we are designed and implemented communication simulator, for two systems which communicates in peer-to-peer and simulating for protocol, to verify the interwork not yet designed system Peerl and now being operated Peer2. To begin with, after the investigation in Interworking Standard in Interface Control Document and check the satisfied requirements in each system, the environment of simulator is set up. We examine Interworking Standard in FSM representation. And in protocol design, partial steps follows necessary procedure of protocol engineering. Simulator is implemented in C++ and, to interwork two systems smoothly, the whole system will be merged. Finally, a design and implementation of simulator is completed by confirming simulation results of simulator and Interworking Standard coincide.

과학영재학생의 사고양식 유형과 학업성취 및 과학개념과의 관계 분석

박수경,김광휘 한국과학교육학회 2005 한국과학교육학회지 Vol.25 No.2

본 연구의 목적은 Sternberg의 정신자치제 이론에 근거하여 과학영재학교 재학생의 사고양식 유형과 학업성취 및 과학개념과의 관계를 밝히는 것이었다. 연구대상은 과학영재학교 1학년 120명과 일반계 남여 고등학교 2학년 122명이었다. 사고양식 검사도구는 정신자치제 이론을 근거로 13가지 사고양식을 측정하는 65문항의 자기 보고식 검사지이며 과목별 성취도는 과학영재학교와 해당 일반계 고등학교 중간고사와 기말고사의 총점을 사용하였다. 과학영재 학생의 사고양식 유형에 따른 과학 개념을 조사하기 위하여 TypeⅠ사고양식 집단과 TypeⅡ사고양식 집단 각 20명의 지구과학 개념검사 결과 응답을 분석하였다. 연구 결과, 과학영재학생은 일반학생에 비하여 입법적, 사법적, 무정부제, 전체적, 외부적, 그리고 진보적 사양식의 특성을 나타내어 새로운 과제를 선호하며 창의적인 방식으로 문제를 해결하는 경향을 보여주었다. 이는 본 연구대상 영재들이 학교 영재성의 특성을 가지는 동시에, 사고양식의 측면에서 볼 때는 창의적-생산적 영재성도 가지고 있는 것으로 해석된다. 사고양식과 학업성취의 관계는 영재학생의 경우 일반학생보다 사고양식과 교과 학업 성취의 상관 관계가 더 높게 나타났다. 이로써 과학영재와 일반학생의 학업성취의 차이가 부분적으로 사고양식의 차이에서 기인함을 알 수 있었다. 과학영재학생의 사고양식 유형별로 지구과학 개념을 조사한 결과, Type Ⅰ집단이 Type Ⅱ집단보다. 과학학습에 있어서 심층적 접근을 하는 것으로 나타났다. 학습활동이나 평가형태가 학습자들의 사고양식에 부합될 때 가장 높은 학업성취를 나타낼 수 있으므로 본 연구에서 밝혀진 사고양식 특성을 기초로 과학영재를 위한 학습 자료와 교수 전략의 개발 및 적용이 요구된다. On the basis of Sternberg's theory of mental self-government, this study examined the relationship between thinking styles and academic achievement of gifted science students and their earth science concepts by the different types of thinking styles. The participants were 120 students from the Busan Science Academy who were selected through the multi-step examinations for the school entrance. All participants responded to Sternberg's Thinking Styles Inventory which is a self-report test consisting of 65 items on 13 subscales, with a 5-point Likert-Type scale. In order to examine the gifted science students' earth science concepts by the types of thinking style, the responses in descriptive items for 40 students were analyzed . The results are as follows. First, gifted science students prefer the legislative, judicial, anarchic, global, external, and liberal styles, whereas. general students prefer the executive, oligarchic, and conservative styles. This result shows that gifted science students tend to not only exhibit schoolhouse giftedness but also creativeproductive giftedness. Second, gifted science students' academic achievement was more significantly correlated with the thinking styles than those of general students. Third. the Type Ⅰ thinking style group proved to process more complex concepts; on the other hand, the Type Ⅱ thinking style group proved to process simpler concepts in earth science. This indicates that Type Ⅰ thinking style students use deep learning approaches whereas Type Ⅱ thinking style students use surface learning approaches.

HGCMP기반 서버 시스템상의 전달지연 연구

조현주,김한수,이광휘 昌原大學校 基礎科學硏究所 1995 基礎科學硏究所論文集 Vol.7 No.-

In this thesis, the message transmission delay on a server system using HGCMP for group communication protocol was analyzed. The queue model of a server system was modeled by queueing theoretic approach. As the feedback structure was imbedded in the queue model, it is difficult to analyze the delay. To solve this problem, the simplification of the queue model was performed. After the simplification process, the queue model was modeled M/M/1. The transmission delay of a server system is calculated using average waiting time and service time in a server system.