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김용익,박행모,방기혁 光州敎育大學校 初等敎育硏究所 2002 初等敎育硏究 Vol.17 No.-
The purpose of this study was to develop instructional materials for the development of creativity through practical arts subject. This study was carried out mainly through literature review. The concept of creativity was organized as creativity domain(X axis) including cognitive and affective one, creativity dimension(Y axis) including historical creativity and psychological creativity, and the viewpoint of creativity level(Z axis) including novelty and appropriateness. In the future, creativity education in practical arts subject should be more emphasized because of creativity development education through practical arts subject was more effective than through other subjects. Most of preceding researches related to creativity in practical arts subject dealt with instructional model and guidance for creativity rather than development of various instructional materials. This study explored Treffinger's instructional model which was composed of difficulty finding, data finding, problem finding, solution finding, and acceptance finding. And, Instructional guidance plan related to 'woodworking lesson' was made at base of the model. Besides, other instructional materials for the improvement of creative thought was concretely presented. Finally, it was suggested that more instructional materials should be developed and a test for effectiveness of such a creative program should be made afterward.
김용진,이충일,이해혁,남계현,이임순,이권해 순천향의학연구소 1996 Journal of Soonchunhyang Medical Science Vol.2 No.2
Ovarian pregnancy is an uncommon form of the ectopic pregnancies. The ovarian vascularity results in maternal hemorrhage early in the first trimester, which disrupts the pregnancy and usually ruptures the ovary with sufficient hemoperitoneum to require emergency operation. This report presents 10 cases of ovarian pregnancy by retrospective review between January 1986 and December 1995 at the Department of Obstetrics and Gynecology, Soonchunhyang University Hospital. There was 19,849 deliveries and 637 ectopic pregnancies during same period. It showed that the incidence of ovarian pregnancy was 3.21 % of all ectopic pregnancies. The clinical features of ovarian pregnancy revealed that abdominal pain was the major symptom, and history of amenorrhea was obscure. Because of life-threatening course, the early diagnosis and treatment of ovarian pregnancy is important. The clinical diagnosis of ovarian pregnancy was more difficult than that of tubal pregnancy.
이동 컴퓨팅 환경에서 이동 호스트들에 대한 동적 세션 관리 기법
강용혁,김문정,엄영익 成均館大學校 科學技術硏究所 2000 論文集 Vol.51 No.1
Recently, the technical advances in wireless communication technologies and the decreasing size of computer components increase the number of mobile users. In the mobile computing environments wireless links are very restricted resource, so efficient use of wireless links is the heart of an efficient mobile computing environments. This paper proposes a scheme for load reduction of foreign agent by managing the number of registered mobile hosts in a cell. This scheme presents the efficient use of wireless links without the channel rearrangement. Experimental results show that the proposed scheme reduces the number of registered mobile hosts in a cell in proportion to the cell redundancy.
권혁숭,홍성용 대구보건대학 1994 대구보건대학 論文集 Vol.14 No.-
This paper introduces a regularized iterative image restoration algorithm. Generally, linear space-invariant image restoration algorithm often introduces artifacts near sharp intensity transition region. It is shown that these artifacts are attributable to the regularization of the ill-posed image restoration problem. So in this paper, two methods to reduce these artifacts in restored image are proposed. The first methods incorporates deterministic a prior information.
A Mechanism of Finding QoS Satisfied Multi-Path in Wireless Sensor Networks
Yong-Hyeog Kang(강용혁) 한국컴퓨터정보학회 2017 韓國컴퓨터情報學會論文誌 Vol.22 No.2
Wireless sensor networks are composed of many wireless sensor nodes that are sensing the environments. These networks have many constraints that are resource constraints, wireless communication, self-construction, etc. But they have many applications that are monitoring environment, tracking the object, etc. In this paper, a mechanism of finding QoS Satisfied multi-path is proposed in wireless sensor networks. In order to satisfy the QoS requirement, the proposed mechanism extends the AODV protocol to find multiple paths from a source node to a destination node by using the additional AODV message types that are proposed. This mechanism will be used to support many QoS applications such as minimum delay time, the better reliability and the better throughput by using the QoS satisfied multi-path. Overheads of the proposed mechanism are evaluated using simulation, and it is showed that QoS satisfied multiple paths are found with a little more overhead than the AODV mechanism.
무선 Ad - hoc 망에서 최대 신장 트리를 이용한 leader 선출 기법
강용혁(Yong Hyeog Kang),엄영익(Young Ik Eom) 한국정보과학회 1999 한국정보과학회 학술발표논문집 Vol.26 No.1A
무선 Ad-hoc 망은 어떠한 하부구조와 중앙관리의 도움 없이 임시 네트워크를 구성하는 무선 이동 호스트들의 집합이다. Ad-hoc 망에서도 응용에 따라 리더(leader) 선출 문제가 야기될 수 있다. 그러나 Ad-hoc 망에서는 망 토폴로지의 변화로 인해 리더 선출에 문제가 생길 수 있을 뿐만 아니라, 리더를 선출한 후에 응용을 위해 broadcast를 수행하는 데도 문제가 발생할 수 있다. 본 논문에서는 Ad-hoc 망에 대한 망 토폴로지 변화에 덜 영향을 받도록 각 노드간의 캐슁된 정보를 이용하여 최대 신장 트리를 구성하여 리더 선출을 쉽게 할 수 있도록 하며, 구성된 최대 신장 트리를 통해 리더가 적은 비용으로 broadcast를 할 수 있도록 하는 기법을 제안하였다.
강용혁 ( Yong-hyeog Kang ) 한국정보처리학회 2008 한국정보처리학회 학술대회논문집 Vol.15 No.2
분산 컴퓨팅의 새로운 패러다임인 웹서비스(web service)는 W3C에서 정의한 네트워크 상에서 컴퓨터들 간에 상호작용을 하기 위한 소프트웨어 시스템이다. 웹서비스는 웹서비스의 제공자와 사용자간의 상호 인터페이스를 통해 이용된다. 복잡한 웹서비스는 다른 웹서비스들의 합성으로 이루어질 수 있으며, 웹서비스의 합성에 대한 기법들은 많이 연구되었다. 본 논문에서는 웹서비스의 질적 수준을 높이기 위하여 서비스의 비기능적인 속성인 QoS를 고려한 웹서비스의 합성을 연구한다. 본 논문에서 제안하는 기법은 중계사이트로 하여금 웹서비스 합성 및 QoS 정보 그래프를 통해 최신의 웹서비스의 합성 및 QoS 상태 정보를 저장하도록 하며, 이를 통해 웹서비스의 사용자가 복잡한 웹서비스를 요청했을 때 QoS 상태 정보를 이용하여 동적이며 QoS를 고려한 웹서비스의 합성을 통해 보다 빠르고 보다 적합한 서비스를 제공할 수 있는 기법을 제안한다.