• 제목/요약/키워드: external connection

검색결과 368건 처리시간 0.026초

기록정보 LOD 구축을 위한 의미 상호연결 자동화 실험 연구 (An Experimental Study on the Automatic Interlinking of Meaning for the LOD Construction of Record Information)

  • 하승록;안대진;임진희
    • 한국기록관리학회지
    • /
    • 제17권4호
    • /
    • pp.177-200
    • /
    • 2017
  • 빅데이터, 인공지능 등 신기술 환경에서 LOD는 기록정보자원을 내외부의 다양한 데이터들과 연결되도록 할 것이다. 이러한 연결의 중심에는 상호연결(Interlinking) 기술이 존재하며, 상호연결된 LOD는 기록정보 개방을 데이터 개방(Open Data)의 최상위 단계로 실현할 것이다. 지속적으로 증가하는 기록의 양을 감안하면, LOD 구축 시 상호연결 알고리즘을 통한 자동화는 필수적이다. 이에 본 연구는 기록정보가 외부 데이터와 상호연결되는 구조와 상호연결 시 고려해야 할 기록정보의 특성을 분석하였다. 또한 국가기록원 CAMS 데이터의 샘플을 수집하여 기록정보 LOD를 구축한 뒤, 기록물 메타데이터의 인물정보를 DBPedia와 자동으로 상호연결하는 테스트베드를 진행하였다. 이를 통해 상호연결 자동화 프로세스를 확인하고, 자동화 기술의 성능과 정확도를 확인하였다. 그리고 테스트베드를 통해 얻은 시사점을 통해 기록정보 LOD 상호연결 과정의 고려사항을 파악하였다.

Knowledge Management and E-learning for Organizational Culture

  • Gupta, Omprakash K.;Lee, Yuan-Duen;Wang, Yuan-Ching;Tein, Shih-Chun
    • Journal of Information Technology Applications and Management
    • /
    • 제16권1호
    • /
    • pp.137-148
    • /
    • 2009
  • Knowledge management becomes the key point for organizations to survive and maintain competitive advantages in the knowledge economy era. E-learning plays a vital role for the organizational learning. How to share the experience of knowledge and the success of the knowledge management has great connection with the organizational culture. This study focuses on the factors of effective E-learning as well as its relation to the organizational culture. A successful e-learning system should not only aim at different statistical variables but emphasize on : course contents, variety of teaching methods and establishes a stable network environment. A stable E-learning platform and speedy bandwidth is a must to achieve the non-barrier communication and built an interactive learning environment. To achieve success in E-learning, it is not necessary to divide the organizational culture to strengthen the course content multiplication and plans the E-learning supervisory work by the sole responsibility unit. It should establish an ample teaching frequency width and platform and also must establish the appropriate study network frequency width and hardware equipment to achieve the best E-learning effect. The interaction in different organizational culture in adapting E-learning, those Ad-hoc and Marketing Culture, are mostly influence by the external environment and have more interactive content. Those in Clan and Hierarchy Culture are affected by traditional conception and lack of interaction. Meanwhile, under the cost consideration, Clan and Ad-hoc Culture on the dynamic side prefer to spend more cost on E-Learning while the stable side, Hierarchy and Marketing culture are willing to pay more expenses on E-Learning.

  • PDF

납 축전지의 병렬운전시 부하분담률 개선 (Improved Load Sharing Rate in Paralleled Operated Lead Acid Batteries)

  • 반한식;최규하
    • 전력전자학회논문지
    • /
    • 제6권1호
    • /
    • pp.34-42
    • /
    • 2001
  • 전지는 화학에너지를 기계적인 처리과정 없이 전기에너지로 직접 전환하는 장치이다. 부하전압과 부하전류의 용량에 따라 단위전지를 직.병렬 연결하여 사용하게 되며, 전지의 병렬운전은 단독운전 보다 전압강하를 더 천천히 발생시키므로 전압강하에 민감한 전력변환장치들의 효율에 밀접한 관계를 가지고 있다. 병렬운전의 필요성과 장점 때문에 대부분의 축전지를 사용하는 시스템은 병렬운전을 하고 있고, 반면에 선.구 축전지 사이에서 순환 전류가 흐르고, 자가방전이 일어나는 단점 또한 가지고 있다. 신 축전지에서 충.방전 전류가 과다하게 흐르는 불평형 현상과 이로 인해 축전지의 수명단축을 일으키게된다. 본 논문에서는 마이크로 프로세서를 사용하여 선.구 축전지 사이의 볼평형 전류를 검출하고 외부저항을 첨가시켜 내부저항의 차이에 대한 감소효과를 얻어 불평형 전류를 보상하였다. 이를 실험을 통해 구현하였다.

  • PDF

한국 정유산업의 학습곡선과 생산성에 관한 연구 (A Study on the Learning Curve and Productivity)

  • 이종철;강규철
    • 산업경영시스템학회지
    • /
    • 제20권43호
    • /
    • pp.175-195
    • /
    • 1997
  • The learning curve has an important effect the growth of corporation. But, in Korea, the study and inference on the learning rate of each industry are unprepared, and so, Korean industires have difficult in productivity and cost. At this point, this study infers the learning rate of the oil industries and investigates the productivity and growth of them. In conclusion, this study presents the direction of the oil industries' development. With the intention of this objects, this study seizes the status which is concerned the total quantity, the operating rate, the plant capacity, the indicators concerning productivity, the investment of R & D and the scales, and then, infers and verifies the relevancy in connection with the learning rate. In the oil industry, the average rate of learning is 65.96% from 1982 to 1994 which the total quantity and the average operation time are used to infer the rate. To observe the low rate within a same period of time, this study takes the consequences that the learning rate is almost indentical with them each year. This steady state is caused by a difference between the employee and the decision maker about the acquirement and assimiliated of technology. When the high-quality technologies posses the environment to applicate in the scene of labor with them, this technology applies to the productivities. As the learning rate increases, the productivity has more effectiveness. The result of analysis about the effectiveness of the learning rate follows that the R & D unfoldes to exist and does not contribute to the growth of the oil industry. To analyze the variables of the growth, such as the learning rate, the investement of R & D, the operating rate and the gross value added to property, plant and equipment, the model is established and examined. The business strategy in the oil industry must be developed to achive the internal growth as well as the external.

  • PDF

자연과 교우하는 주거공간 계획 (Plan of Nature-friendly Residential Space)

  • 김봉순
    • 한국실내디자인학회:학술대회논문집
    • /
    • 한국실내디자인학회 2008년도 춘계학술발표대회 논문집
    • /
    • pp.32-35
    • /
    • 2008
  • If human beings could make friends with nature, it would be a truly wellbeing. This project has selected the design concept under the supposition that human beings and the nature become friends. This residential house, which is consisted of one ground floor and two underground floors, is confronting the mountains that surround the residential complex. Residents can enjoy viewing the mountains from the living room. The garden is created by using this given environment in maximum. The walls are made up with rocks, and a small pond is formed with water from the mountain, presenting another attractive sight. Through the connection rather than the break between mountain and garden, living room and garden, and again garden and mountain, the dialogue with nature was attempted. The water of the pond in the garden flows down along the walls and creates another water space at the gate area of the house. Passing through the entrance, there are a living room, a kitchen, a bedroom for spouses, a common bathroom, and a library on the ground floor. On the second floor, there are two rooms, a bathroom, and a mini living room. The platform of living room on the 1st floor is lowered to produce the comfortable living room with the hearth. From the view of living room, the garden with full feeling of nature can give a good emotional rest for modem people who want the mental relaxation. The marble stones are used as its material to present rich texture and sophisticated image presentation. The hearth in the living room is harmonized with high-tech electronic home appliances and surrounding accessories. On the kitchen, the high-glossy materials are used to express the external appearance neatly and the depository function is more improved for housewives.

  • PDF

시스템가시성평가를 위한 유니버설미들웨어기반 Pervasive Memorial Engine 연구 (The Study of System Visibility of Universal Middleware Pervasive Memorial Engine)

  • 이해준;황치곤;윤창표
    • 한국정보통신학회:학술대회논문집
    • /
    • 한국정보통신학회 2017년도 추계학술대회
    • /
    • pp.335-338
    • /
    • 2017
  • 시스템가시성의 통합 평가가 복잡한 ICMBS분야가 상용화 되면서 하드웨어시스템과 소프트웨어기술의 역할 변화가 필요한 시점이 다가오고 있다. 이 변화는 기술이 문화적으로 융합되면서 자연스럽게 스며들어 혼재하는 시기로 접어들고 있다. 통합시스템 범위가 예측할 수 없는 혼란스러운 공백상태를 불러올 수 있다. 시스템의 공백상태는 기술과 문화의 복잡한 상호작용을 통해 공급과 유지로 운용되는 생태계적인 특징을 갖는다. 유니버설미들웨어를 활용하게 되면 생명주기모델을 적용할 수 있으며 복잡성이 증가하는 시스템의 가시성을 높이고 혼란스러운 상태를 대비할 수 있다. 본 연구에서는 유니버설미들웨어를 기반으로 하여 데이터와 서비스모듈을 각각 유기적으로 표준화하여 안정적인 시스템가시성 플랫폼을 지원하는 모듈을 시험하고 평가하였다. 시스템가시성을 구성하는 모듈은 Intelligent Pervasive Cloud 모듈, Memorial Service 모듈, Life Cycler 연결 모듈로 구성하고, 각각의 모듈은 ICBMS에서 요청하는 시스템가시성에 대한 다양한 요구사항을 반영하였다. 또한, 분석결과를 플랫폼기반의 시스템독립적인 구조를 통해 다양한 네트워크응용서비스 표준을 지원하였다.

  • PDF

IP Spoofing 대응 기능을 가진 방화벽 시스템 구현

  • 최석윤;김중규
    • 한국산업정보학회:학술대회논문집
    • /
    • 한국산업정보학회 1997년도 춘계학술대회 발표논문집
    • /
    • pp.163-181
    • /
    • 1997
  • This dissertation provides a theroetic study on the network security in general , the firewall in particular . In fact, the firewall has been recognized as a very promising option to obtain the security in the real world network environment . The dissertation provides a thorough theoretic investigation on the various problems raised in the computer network, and also explores a methodology of the security against IP spoofing. Moreover, it investigates a systematic procedure to make analysis plans of the firewall configuration. Based on the above investigation and analysis , this dissertation provides two approaches to network security, which address a number of issues both at the network and at application level. At the network level. a new methdo is proposed which uses packet filtering based on the analysis of the counter plot about the screen router. On the other hand at the application level, a novel method is exlored which employs security software , Firewall-1, on Bastion host. To demonstrate the feasibility and the effectiveness of the proposed methodologes, a prototype implementation is made. The experiment result shows that the screen router employing the proposesed anti-IP spoofing method at the network level is effective enough for the system to remain secure without being invaded by any illegarl packets entering from external hackers. Meanwhile , at the application level. the proposed software approach employing Firewall -1 is proved to be robust enough to provent hackings from the outer point to point protocol connection. Theoretically, it is not possible to provide complete secuirty to the network system, because the network security involove a number of issues raised from low level network equipments form high level network protocol. The result in this dissertation provides a very promising solution to network security due to its high efficiency of the implementation and superb protectiveness from a variety of hacking.

사고-행동 융합과 인지적 융합의 개념적 이해 : 강박증을 중심으로 (Conceptual Understanding of Thought-Action Fusion and Cognitive Fusion : Focus on Obsessive-Compulsive Symptoms)

  • 이상원;이경욱;최미나;이승재
    • 대한불안의학회지
    • /
    • 제15권1호
    • /
    • pp.1-12
    • /
    • 2019
  • Thought-action fusion (TAF) is a tendency to blindly assume causal relations between their thoughts and external reality. On the other hand, cognitive fusion (CF) is a tendency to take internal experiences, such as thoughts and feeling, literally rather than view them as random events. However, these two terms are often confusedly used and, in fact, have conceptual overlaps. Therefore, this study aimed to identify their distinctive features through a comprehensive review of the definition, origin, measurements and clinical implications especially on the understanding of obsessive-compulsive symptoms. The cognitive-behavioral concept of TAF is confined to erroneous and maladaptive beliefs about the connection between thoughts and behaviors. The CF is a broader construct that entails taking thoughts and feelings as facts and engaging or struggling with them such that the quality of life is lowered. They also have different theoretical backgrounds, developing processes and therapeutic approaches. From the perspective of the obsessive-compulsive disorder, both concepts have been studied as mid-structures for this illness. Recently, the effectiveness of psychological therapies related to these concepts such as defusion therapy has been tested. However, it is yet still in its infancy. In the future, complementary advances between the two concepts with studies on biological substrates is needed.

자동차 헤드램프내 체결부품사이의 마찰계수 실험장치 개발 (Development of a Measuring Device for Coefficient of Friction between Connection Parts in Vehicle Head Lamps)

  • 백홍;문지승;박상신;박종명
    • Tribology and Lubricants
    • /
    • 제35권1호
    • /
    • pp.59-64
    • /
    • 2019
  • When slipping occurs between two materials, the coefficients of friction must be considered because these values determine the overall efficiency of the machine or slip characteristics. Therefore, it is important to find the coefficient of friction between two materials. This paper focuses on obtaining the coefficient of friction between an aiming bolt and a retainer located in the headlamps of a vehicle. This bolt supports the headlamp, and if the bolt is loosened by external vibration, the angle of the light will change and block the vision of pedestrians or other drivers. In order to study these situations, the coefficient of friction between aiming bolts and retainers needs to be measured. In addition, the coefficient of friction of materials used in the headlamp should be obtained. To determine these two factors, a new device is designed for two cases: surface-surface contact and surface-line contact. To increase reliability of the results, the device is designed using an air-bearing stage which uses compressed air as lubricant to eliminate the friction of the stage itself. Experiments were carried out by applying various vertical forces, and the results show that the coefficient of friction can be measured consistently. The procedure for designing the device and the results are discussed.

일반초등교사의 ADHD아동교육에 대한 인식 (Knowledge of Elementary School Teachers Regarding in ADHD Children Education)

  • 강민채
    • 융합정보논문지
    • /
    • 제9권7호
    • /
    • pp.114-121
    • /
    • 2019
  • 본 연구에서는 일반초등학교 교사 297명을 대상으로 ADHD아동교육에 대한 인식에 대해 알아보았다. ADHD아동 교육에 대한 인식은 ADHD아동의 통합교육에 대한 태도, 부담감, 효능감, 촉진여건 네 가지 영역으로 구성된 설문지를 통해 이루어졌다. 수집된 설문지는 SPSS(WIN 22.0)의 기술통계를 사용하여 빈도와 백분율을 산출하였다. 연구결과 첫째, 일반초등교사들은 ADHD아동의 통합교육을 위해 노력 하는 것으로 나타났다. 둘째, 일반초등교사들의 ADHD아동교육에 대한 부담감에서는 ADHD아동이 일반아동의 학습방해, 긍정적 학습분위기 방해, 일반교실의 질서 유지 방해, 교사의 수업 진행을 방해한다고 나타났다. 셋째, ADHD아동교육에 대한 일반초등교사들의 효능감에서는 ADHD증상에 대한 지식 습득, ADHD아동의 진단과 평가, ADHD아동 교육을 위한 교수 능력, ADHD아동의 행동을 다루는 능력은 없는 것으로 나타났다. 넷째, ADHD아동교육에 대한 학교차원의 촉진여건에서는 ADHD 아동을 위한 전문인력 지원, ADHD 아동 지원을 위한 외부 기관과의 연계는 이루어지지 않는 것으로 나타났다.