• Journal of the Korea Society of Computer and Information
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• v.4 no.3
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• pp.60-66
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• 1999

The purpose of this study is to design and materialize the simulated courseware which is based on new educational environments and student-based education. The scope of this study is reflection and refraction of in the physics of high school. This paper introduce the theoretical background of courseware and investigate the structure and process of the teaching-theory by visualized computer simulation. We applied the basic concept about the reflection and refraction of light and explained the simulated images of spherical mirror and lens with the principles expressions and relative image forms. The last we simulated the various kinds of the images, shapes and distance of the images by changing the distance of object and focus which are made by computer simulation.

• Proceedings of the Korea Multimedia Society Conference
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• 1998.04a
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• pp.63-70
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• 1998

인터넷 환경하에 전자상거래 분야는 이미 일부 선진국을 중심으로 성공적으로 도입, 운영되고 있다. 하지만 국내외적으로 전자상거래 분야는 전통적인 방법에 지나치게 편중되어 있어서 산업 발전에 여러 가지 제약을 받고 있는 것도 사실이다. 이러한 문제점을 개선, 보안하기 위해서 사이버 스페이스 상에서 에이전트 구축을 위한 판매 활동개념(미디어 에이전트 뱅크 시스템 : MABS; Media Agent Bank System)을 도입 했는데, 이것이 바로 판매 및 구매 정보시스템인 웹상에 있는 에이전트이다. MABS는 기업의 제조나 판매에서 발생하는 판매 정보를 국내외적으로 홍보하고 판매하여 실시간으로 기업이 판매 정보를 국내외적으로 홍보하고 판매하여 실시간으로 기업이 판매 정보를 즉시 공유하고 커뮤니케이션함으로써 기업의 생산성에 바로 반영되는 새로운 판매 방법론이다. MABS의 개념을 구현하기 위해 미디어 뱅크(주)에 의해서 개발되고 있는 사이버 스페이스상의 에이전트 시스템은 기존의 전자 상거래 개념을 좀 더 개선하고 보완하려는 의도에서 개발된 중소 제조 산업을 위한 에이전트 구축 시스템이며, 이는 모든 산업분야에 응용하여 적용시킬 수 있는 도구로서 인터넷을 보다 활성화 시키는 기능을 갖는다.

• Proceedings of the Korea Information Processing Society Conference
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• 2002.11a
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• pp.573-576
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• 2002

본 논문에서는 언어학의 관점에서 시제와 상의 특성을 알아 보고, Reichenbach 의 시제와 상을 살펴 보며, 상의 기술에 있어서 언어학자의 여러 주장과 문제점을 고찰하며, 한국어의 시제를 영어의 12 시제와 비교한다. 그리고 한국어의 여러 시제 의미를 분석하고, 시제의 구조를 개념그래프 이론에 의거하여 기술한다. 실험에서는 시제가 포함된 문장을 입력 받아 개념그래프로 변환하는 프로그램을 구현하고 그 결과를 기술한다.

• Journal of the Daesoon Academy of Sciences
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• v.11
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• pp.401-450
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• 2001

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.12
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• pp.4945-4953
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• 2010

The purpose of this study was to analyze the differences in perception levels of goals and concepts of physical education by the body image and gender of middle school students. Among 461 middle students randomly selected by a multistaged cluster sampling technique, 433 students(boys 267, girls 166) filled out questionnaires consisted of Figure Rating Scale and modified ones. To know the differences in the perception levels of goal and concept of physical education by sex, t-test was utilized. In order to find out the differences in the perception levels of goal and concept of physical education by body image, ANOVA was performed using the SPSS Windows 12.0. The results of this study revealed that boys had higher level of goal and concept of physical education than girls. Second, middle school students classified into normal body image was higher level of goal and concept of physical education that other body images such as very thin, thin, very obese, and obese ones. The results of this study indicated that curriculum of physical education focused on fragmentation of health, psychomotor, cognitive, affective, leisure, holistic human should make girls understand thoroughly and deeply goals and concepts of physical education and ideal body image.

• The Korean Society of Law and Medicine
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• v.24 no.1
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• pp.43-65
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• 2023

The healthcare industry is a digital healthcare that combines technology based on the 4th Industrial Revolution, dealing with information on individual health and medical care, and is a fusion of health care services and medical science and technology. It is questionable whether digital healthcare according to the paradigm change can be discussed by the concept of medical practice under the existing Medical Act. There is no clear definition of the concept of medical practice in the Medical Service Act, but the concept is established through precedents. In addition, under the Medical Service Act, the subject of medical practice is limited to medical personnel. However, digital healthcare sometimes diagnoses and treats diseases using digital technology by medical personnel. On the other hand, what is possible by non-medical personnel is digital healthcare. This is because digital healthcare is understood as a concept that includes health care such as exercise, eating habits, and weight control. For this reason, if the concept of medical practice under the "Medical Act" on digital healthcare is included, it is subject to criminal punishment for "unlicensed medical practice" prescribed in Article 27 of the "Medical Act". In the health and medical industry, digital transformation and convergence with information and communication technology are rapidly progressing. As a result, there is a need to newly define it as 'digitalized medical practice' or 'information and communication technology (ICT)-based medical practice' separately from existing medical practices. The concept of medical practice has variability, not a fixed and invariable concept. However, in response to this demand, it is not an infinite expansion of the concept of medical practice, but a request to reset its scope. Therefore, the concept of medical practice should be legislated by reflecting the demand of consumers for the medical service system.

• Journal of the Korean Society for information Management
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• v.17 no.3
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• pp.45-70
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• 2000

• Journal of the Korean Society of Propulsion Engineers
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• v.16 no.1
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• pp.64-71
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• 2012

While a conventional ECS mainly consisted of an air cycle machine and heat exchangers, a new concept of a phase change heat exchanger was added to improve the transient performance of the ECS. As a result, an ECS modeling program including the phase change heat exchanger is newly developed to estimate its effect in various flight conditions such as take-off, maneuver, cruise, and landing. The simulation result regarding a virtual flight profile has confirmed the new ECS fulfilled the requirement by showing the temperature of the cooling air returned from the bay was always kept below $80^{\circ}C$. Through this study, the new ECS concept with PCHE was verified successfully.

• Korean Journal of Materials Research
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• v.4 no.5
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• pp.493-501
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• 1994

DSC와 XRD를 사용하여 Zr/Si 다층박막의 고상반응에 의한 비정질상과 결정상 생성 및 상전이를 확인하고 이를 유효구동력 개념과 유효생성열 개념 및 phase determining factor(PDF)모델을 이용하여 예측한 결과와 비교하였다. Zr/Si 다층박막은 비정질호 반응이 잘 일어났으며 이는 유효구동력 개념으로 예측한 바와 일치하였다. Zr/Si 계에서 생성되는 최초의 결정상은 ZrSi 였으며 유효생성열과 PDF모델로부터 예측된 최초의 결정상은 PDF 모델의 예측 결과와 일치하였다. Zr/Si 다층박막의 원자조성비가 1대 1일경우와 1대 2일 경우의상전이는 ZrSi$\longrightarrow$$ZrSi_{2}$로 되었으며 이러한 상전이 과정은 유효생성열 다이아그램으로 해석되었다. ZrSi의 생성기구는 핵생성이 율속임을 규명하였고 ZrSi와 $ZrSi_{2}$의 생성에 필요한 활성화에너지는 1.64$\pm$0.19eV와 2.28$\pm$0.36eV이었다.

• Journal of the Korean earth science society
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• v.30 no.7
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• pp.855-868
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• 2009

The purpose of this study was to investigate how teachers understand the principle of image formation of stars through a telescope. This study was conducted by using explanatory paper questionnaires given to 101 earth science teachers in the areas of Gyunggi province and Seoul. The questionnaires were cross-analyzed by three experts in earth science education. Result indicated that most of the participating teachers did not have systematic concepts about the process of making an image formed by a convex lens. Particulary, they did not sufficiently understand the concepts of an image and the functions of a screen. Furthermore, only 3% of the participants possessed the scientific concepts about the image formation principle of a star through the telescope. Most of the teachers seem to have non-scientific or alternative concepts about the image formation, which was only understanded with the fragmented characteristics about light and convex lens.