• 인터넷정보학회논문지
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• 제4권1호
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• pp.67-74
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• 2003

디자인 패턴, 컴포넌트 기반 기법 등의 소프트웨어 개발기법 변화에 따라 웹 서버 시스템 개발 부분에서도 이를 도입하여 다양한 사용자 요구사항에 맞도록 능동적으로 대처하고 있다. 특히, EJB는 서버측 컴포넌트 모델로서 쉽고 다양한 개발지원으로 인하여 많은 연구 및 도입되고 있다. 또한, 컴포넌트 조립기법은 메시지 전달방법에 의한 아키텍처기반의 C2 스타일 아키텍처가 쉽고 효율적인 적용방안으로 많은 관심을 받고 있다. 그러나, 쓰레드를 호출 할 수 없는 EJB컴포넌트의 경우, C2 스타일 아키텍처에 의한 컴포넌트 합성을 위해서는 C2 프레임워크의 수정이 불가피하다. 이를 위해 패턴 중 구조패턴의 하나인 Adapter패턴을 이용한 기법을 제안하고자 한다. 즉, Adapter패턴에 의하여 쓰레드를 호츨할 수 있는 EJB로 변환함으로써 C2 스타일 아키텍처에 의한 컴포넌트 합성이 가능하도록 하였다.

• 한국통신학회논문지
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• 제10권6호
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• pp.273-286
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• 1985

오늘날 衛星通信方式은 INTELSAT와 INMARSAT와 같은 國際組織을 통하여 全世界的인 國際業務를 제공하고 있으며 衛星通信技術은 陸上에서의 固定業務뿐만 아니라 海上移動業務에도 큰 變革을 가져왔다. 우리나라에서는 INTELSAT를 통한 國際固定衛星業務는 先進國에 비하여 손색이 없으나 INMARSAT시스템에 의한 海上移動衛星業務面의 施設과 技術은 世界水準에서 落後되어 있다. 本 論文에서는 먼저 위성통신방식의 발전과정을 論하고 그 시스템의 早速한 國內導入上 問題點을 分析하고 끝으로 INMARSAT 시스템의 導入促進方向을 다음과 같은 面에서 提案하고자 한다. 1. 海上·陸上地球局의 設置 2. 새로운 通信長資格基準의 設定 3. 海上移動衛星業務를 위한 國際協力의 增進 4. INMARSAT 시스템의 硏究機閱의 設置

• 한국정보시스템학회지:정보시스템연구
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• 제30권1호
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• pp.179-204
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• 2021

Purpose The purpose of this study is to suggest a research model that shows how Youtube influencers affect consumers' Youtube information adoption and purchase intention. Generally, a communicator's character has a significant effect on the persuasiveness of the message. This study segments influencer characteristics into five dimensions and explores the effect of five characteristics on perceived usefulness of information, perceived enjoyment, information adoption, and purchase intention. Design/methodology/approach This study suggests a structural equation model that explains the casual relationship between the five dimensions of Youtuber characteristics and perceived usefulness of information, perceived enjoyment, information adoption, and purchase intention. Findings There are little research on what and how the characteristics of a Youtube influencer can affect consumers' information adoption and purchase intention of the product. This study is significant in that it provides a research model that examines the effect of Youtuber characteristics on consumers' information adoption and purchase intention. This research discovered that the dimensions of trustworthiness and attractiveness of influencer affect information adoption and purchase intention through the mediate variables.

• 의학교육논단
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• 제23권1호
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• pp.23-36
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• 2021

Residents serve as educators who teach patients, medical students, fellow residents, and other medical personnel while being trained as learners. The purpose of this study was to review the literature on the competencies, perceptions, and educational status of residents as teachers, and to suggest appropriate competencies and curricular components. A literature review was conducted and resident-related institutional homepages were searched. Many countries are developing the educational competencies of residents as teachers and implementing educational programs. Residents most often taught clinical knowledge and clinical skills to patients, medical students, fellow residents, and other medical professionals, and recognized the importance of education, the joy of teaching, and the role of teachers; however, the task of teaching was burdensome. Based on these findings, competencies and educational programs for the resident as teacher are proposed. The competencies consist of the five stages of ACCESS (active learner, clinical teacher, curriculum developer, educational scholar, social communicator, supervisor/leader), and specific teaching content, methods, and assessment methods are suggested to develop these competencies. Educating residents to develop their competencies as teachers is very important as a way to foster lifelong learning skills, help others, and assist in leadership roles.

• 정보관리학회지
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• 제19권2호
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• pp.69-92
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• 2002

본 연구는 다양한 유형의 정보자원에 대한 연속적이며 통합된 접근을 요하는 하이브리드 정보 서비스를 제공하기 위한 일반적인 하이브리드 도서관 모델과 설계 원칙에 따른 하이브리드 도서관 설계를 위한 하이브리드 도서관의 요구 분석과 논리적 구조를 살펴보았다. 하이브리드 도서관의 요구 분석은 해당 도서관의 특정한 요구사항을 명기함으로써 다양한 형태의 하이브리드 정보환경을 개발하는 기관과 서비스를 지원하는데 필요하며 서비스 개발을 계획하는 관리자들이 반드시 고려할 필요가 있는 과정이다. 이러한 요구 분석은 기본적인 요구사항, 기본적 시스템 요구사항, 탐색, 소재 확인, 신청, 배달, 지불 등의 7가지 항목으로 구성된다. 하이브리드 도서관의 논리적 구조는 기본적으로 하이브리드 도서관 설계에 필요한 요구 분석사항들을 수용할 수 있도록 조직되어야 하며, 이러한 구조는 하이브리드 도서관 관리시스템을 위한 논리적 구조와 하이브리드 도서관의 복잡한 기능성을 포괄적으로 지원하는 동시에 국지적 단순성을 획득하기 위한 5개의 계층별 논리 구조로 구분하여 생각 할 필요가 있다.

• 천문학논총
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• 제15권spc2호
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• pp.21-25
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• 2000

The ionosphere, the atmosphere of the earth ionized by solar radiations, has been strongly varied with solar activity. The ionosphere varies with the solar cycle, the seasons, the latitudes and during any given day. Radio wave propagation through or in the ionosphere is affected by ionospheric condition so that one needs to consider its effects on operating communication systems normally. For examples, sporadic E may form at any time. It occurs at altitudes between 90 to 140 km (in the E region), and may be spread over a large area or be confined to a small region. Sometimes the sporadic E layer works as a mirror so that the communication signal does not reach the receiver. And radiation from the Sun during large solar flares causes increased ionization in the D region which results in greater absorption of HF radio waves. This phenomenon is called short wave fade-outs. If the flare is large enough, the whole of the HF spectrum can be rendered unusable for a period of time. Due to events on the Sun, sometimes the Earth's magnetic field becomes disturbed. The geomagnetic field and the ionosphere are linked in complex ways and a disturbance in the geomagnetic field can often cause a disturbance in the F region of the ionosphere. An enhancement will not usually concern the HF communicator, but the depression may cause frequencies normally used for communication to be too high with the result that the wave penetrates the ionosphere. Ionospheric storms can occur throughout the solar cycle and are related to coronal mass ejections (CMEs) and coronal holes on the Sun. Except the above mentioned phenomena, there are a lot of things to affect the radio communication. Nowadays, radio technique for probing the terrestrial ionosphere has a tendency to use satellite system such as GPS. To get more accurate information about the variation of the ionospheric electron density, a TEC measurement system is necessary so RRL will operate the system in the near future.

• Imaging Science in Dentistry
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• 제30권1호
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• pp.55-62
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• 2000

Purpose: This study was performed to develop the electronic textbook (CD-rom title) about preclinical practice of oral and maxillofacial radiology, using multimedia technology with interactive environment. Materials and Methods: After comparing the three authoring methods of multimedia, i.e. programming language, multimedia authoring tool and web authoring tool, we determined the web authoring tool as an authoring method of our electronic textbook. Intel Pentium II 350 MHz IBM-compatible personal computer with 128 Megabyte RAM, Umax Powerlook flatbed scanner with transparency unit, Olympus Camedia l400L digital camera, ESS 1686 sound card, Sony 8 mm Handycam, PC Vision 97 pro capture board, Namo web editor 3.0, Photoshop 3.0, ThumbNailer, RealPlayer 7 basic and RealProducer G2 were used for creating the text document, diagram, figure, X-ray image, video and sound files. We made use of javascripts for tree menu structure, moving text bar, link button and spread list menu and image map etc. After creating all files and hyperlinking them, we burned out the CD-rom title with all of the above multimedia data, Netscape communicator and plug in program as a prototype. Results and Conclusions : We developed the dental radiology electronic textbook which has 9 chapters and consists of 155 text documents, 26 figures, 150 X-ray image files, 20 video files, 20 sound files and 50 questions with answers. We expect that this CD-rom title can be used at the intranet and internet environments and continuous updates will be performed easily.

• 한국실내디자인학회논문집
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• 제14권6호
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• pp.252-259
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• 2005

A modern museum has been changed from a passive place for simply exhibiting arts and antique collections to an interactive place for learning and experiencing culture and information. Such a functional change of the modern museum requires not only reorganizing fundamental characteristics of the modern museum, but also reforming organization of management teams, changing attitudes of staffs and assigning new roles to staffs for accepting the new thought and approach of visitors. That is, the function of the modem museum is not limited to collect arts and antique collections. The fundamental change of the modern museum further requires using the collections as a tool or a medium to provide a cultural exchange between the visitors and the museum, and to give new experience and information to the visitors. After proposing discussion that ' how, what, who is related to the museum? ', the way of thinking the museum is changed from ' collection ' to ' communication '. The change of the modern museum improves an educational role of the museum, and makes the museum as a communicator exchanging information and experience with visitors. In the last analysis, the modern museum is not just an exhibition medium that simply transfers information of the exhibition mediums to public. The modem museum is also a communication medium in order to collect information and transfer the collected information to the visitors. That is, the modern museum should provide various exhibition and communication mediums to the visitors for exchanging information and cultural experience. Therefore, the modern museum requires additional functions processing information suitable to the present environment and level of the museum, and transferring the information to public.

• 한국도서관정보학회지
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• 제8권
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• pp.69-96
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• 1981

We all know that we can not keep a proper social life without language. Yet language is so much a part of our environment that we hardly realize it is there. The purpose of this study is to provide an understanding of the linguistical aspect of communication process in order to carry out a successful human relations in the operation of libraries. Human development rests upon man's capacity to digest large quantities of knowledge and it is language which allows facts to be communicated, stored, and disseminated. An attempt was made in this study to illustrate the elementary meaning-of-words aspect of communication. In order to share the most commonly agreed meanings in interpersonal communication, a careful study of semantic noises is important. In a constant struggle to meet client needs, staff and administrators, librarian must understand communication dialogues, their messages and be able to read all level of meanings. In order to perform a successful function of the librarian, to act as a link-man or communicator and to cope with its ever growing information, it is suggested that the deep understanding of the following linguistical aspect of communication elements is essential. 1. Characteristics of Language: (1) Words have different meanings to different people. (2) Words vary in the degree of abstraction. (3) Language is incomplete by its nature. (4) Language reflects not only the personality of the individual but also the culture of man's society. 2. Noises in transmitting meanings: (1) Mechanical or Technical noises. (2) Semantic Noises (3) Noises caused by the psychological factors a. attention b. perception, sensation, cognition and perceptual field. 3. Linguistic Stratum Languages differ considerably in vocabulary by the physical and cultural environment setting as well as situation of individual living. There are seven different language stratum which reflects different region, sex, age, profession, special social stratum, academic and tabooed words.

• 정보관리학회지
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• 제16권2호
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• pp.105-134
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• 1999

본 연구에서는 XML과 HTML의 이론적인 특성을 포괄적으로 비교하고 이러한 특성들이 실험 시스템에서 어떻게 적용되고 있는지를 검색기능, 검색 환경 및 이용자 만족도 측면에서 비교 분석하며, XML이 정보 검색에서 기존의 HTML 보다 더 유용한 것인지를 살펴보았다. 비교결과, XML은 복합 내용 및 구조검색이 가능한 점, 관련 자료들을 다중 링크를 사용해 접속할 수 있다는 점 그리고 데이터베이스로 구축할 경우 XML 문서는 태그를 이용해 자동적으로 변환할 수 있다는 등이 HTML 보다 더 우수한 것으로 나타났다. XML이 보다 활성화되기 위해서는 XML 문법을 완벽하게 지원하는 XML 관련 소프트웨어가 많이 개발되어져야 한다. 또한, XML이 주는 무제한적인 태그 작성의 자유가 자칫 동일한 문헌 형태를 너무 다양한 양식들로 표현하다 보면 혼란을 빚을 가능성도 매우 높아지고 있다. 따라서, 특정 문헌 형태에 대한 표준적인 DTD 설계가 절실히 요구되어진다.