• 인터넷정보학회논문지
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• 제16권6호
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• pp.39-46
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• 2015

지식 공간 이론이란 학습자들이 대해 최대한의 학습 성취를 이끌어 낼 수 있도록 학습자들에 대한 가이드라인을 제공해주는 이론으로 여러 교육 환경에서 사용되어 왔다. 하지만 지식 공간 이론을 사용해왔던 많은 방법들이 주로 수작업을 통해 이루어져 왔고 이러한 작업을 지원하기 위해서 비주얼 베이직 혹은 R 등의 프로그램이 사용되어 왔지만 프로그램을 따로 배워야 하는 불편함과 시간적으로 낭비되는 등의 문제를 야기해 왔다. 본 논문에서는 이러한 문제를 해결하기 위해서 지식 공간상에서 학습자들의 지식구조를 자동으로 분석하고 결정적 학습 경로를 제공하는 이른바 지식 구조 분석 시스템을 제안한다. 제안된 시스템은 아파치 웹상에서 구현되었고, 카이 제곱 값을 산출하여 결정적 학습 흐름도를 도출하도록 하였다. 제안된 방법은 사용자들이 웹에서 편리하게 학습자들의 지식 상태 분석할 수 있도록 환경을 제공하고 지식 구조의 체계적인 검토를 위한 방법을 제시해준다.

• 과학기술학연구
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• 제15권1호
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• pp.109-143
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• 2015

최근 혁신의 지속과 성공을 위해 기술혁신시스템을 어떻게 바꿀지가 중요한 논제로 등장했다. 실천적, 이론적 차원에서 혁신시스템의 변화에 관심이 높아지고 있는 시점에서 네덜란드의 전환은 큰 주목을 받고 있다. 네덜란드의 전환정책은 시스템의 근본적 변화를 추구하면서도 기존의 변화와는 상당히 다른 접근과 방식을 취하고 있기 때문이다. 대표적 전환으로는 지속가능한 에너지 전환, 생물다양성과 자연자원의 지속가능한 활용으로의 전환, 지속가능한 농업으로의 전환, 지속가능한 교통 등이 있다. 장기적 변화라는 점에서 네덜란드의 전환은 여전히 초기단계지만 전환에 대한 공감 확산, 적대적 행위자 간 연합 형성, 다양한 전환 네트워크의 형성이라는 긍정적 효과가 나타나고 있다. 하지만 여전히 해결이 필요한 문제도 있다. 이론과 실제의 연계, 전환 개념의 추상성과 모호성 극복, 장기적 비전과 단기적 행위의 연결, 폭넓은 민주적 참여 확보, 현존 레짐의 저항 극복, 집행 문제, 정부 내에서 전환에 대한 지지 확산의 문제 등이다. 이런 문제에도 불구하고 네덜란드의 전환은 시스템의 근본적 변화가 필요한 시점에서 많은 교훈을 주고 있다. 따라서 기존 시스템과 레짐에 의한 고착화를 해결하고 구조적 변화를 이끌어 내기 위해 네덜란드의 전환이론과 정책에서 배울 필요가 있다.

• 한국콘텐츠학회논문지
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• 제16권12호
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• pp.562-573
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• 2016

우리나라의 대학입시제도가 근래 다양화되면서 제도의 공정성 문제가 꾸준히 제기되어오고 있다. 대학입시의 공정성에 대한 선행연구는 일반적인 정책대안 혹은 교사집단의 인식을 중심으로 이루어졌으나 이 연구는 대학입시제도의 가장 직접적인 당사자라고 할 수 있는 학생들이 대학입학전형제도의 공정성에 대해 느끼는 인식을 분석하는 것을 목적으로 한다. 이 연구는 대학생 11명의 인터뷰자료를 이용하여 근거이론(Grounded Theory) 방법을 적용하였다. 분석결과는 다음과 같다. 인과적 조건은 수능시험위주에서 벗어난 대입전형의 다양화과정에서 일어난 잦은 제도의 변경이며, 중심현상은 절차적 측면과 분배적 측면에서의 근본적인 대입제도의 불공정성으로 나타났다. 또한 맥락적 조건으로는 서울과 지방의 차이를 중심으로 한 대학입학에 관한 정보와 인프라의 격차로 분석되었으며 중재적 조건으로는 정보화기술의 발전과 개인 혹은 집단 차원의 노력으로 분석되었다. 결론적으로 대학생들은 대학입학전형의 불공정성이 일회적 처방으로 해결할 수 없는 사회구조적인 문제를 배경으로 하고 있는 것으로 인식하고 있었다.

• 대한전자공학회논문지
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• 제25권5호
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• pp.482-489
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• 1988

In this paper, we proposed a generalized model reference adaptive control theory which can be applied to single-input single-output discrete system by using V.M.Popov's hyperstability theory. As the result of theoretical analysis, it is proved that the discrete adaptive control scheme proposed by Narendra is a special case of the adaptive control schemes proposed in this paper. Also we suggest a variety of parameter adaptiations methods of controller through hyperstability theory.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 1999년도 가을 학술발표회 논문집
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• pp.153-160
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• 1999

It has been recognized that the assessment of concrete lining is very uncertain and subjective depending on the engineers who are in charge. T-FLAS which was based on fuzzy theory was developed in this study for the quantitative and objective assessment of the concrete lining in tunnels. Based on the application of T-FLAS on the evaluated field data, it was shown that the assessment system using fuzzy theory(T-FLAS) can be the effective and objective method for the assessment of concrete lining.

• 한국지반공학회논문집
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• 제16권6호
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• pp.127-139
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• 2000

In the study, an expert system was developed to predict the safety of tunnel and select proper tunnel reinforcement system using fuzzy quantification theory and fuzzy inference rule based on tunnel information database, For this development, many tunnelling sites were investigated and the applied countermeasures were studied after building tunnel database. There will be benefit for the deciding tunnel reinforcement method in the case of poor ground condition. The expert system developed in the study has two main parts, pre-module and post-module. Pre-module is used to decide input items of tunnel information based on the tunnel face mapping information which can be easily obtained in in-situ site. Then, using fuzzy quantification theory II, fuzzy membership function is composed and tunnel safety level is inferred through this membership function. Post-module is used to infer the applicability of each reinforcement methods according to the face level. The result of the predicted reinforcement system level was similar to measured ones. In-situ data were obtained in three tunnel sites including subway tunnel under Han River. Therefore, this system will be helpful to make the mose of in-situ data available and suggest proper applicability of tunnel reinforcement system to development more resonable tunnel support method without dependance of some experienced experts opinions.

• 대순사상논총
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• 제18권
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• pp.101-122
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• 2004

When people discuss the continental cultural elements in the ancient East Asian culture, people always attach great importance to the two major cultures of Confucianism and Taoism, but offer little explanation to the significant influence of the theory of yin and yang, the important philosophical base of the two major cultures. The theory of yin and yang, existing as the theoretical source at a profounder level, possesses philosophical connotations that are always embedded into the mainstream of thought, religions and customs, displaying its unique glamour in its unique way. Its influence is more than that, however. It has exerted far-reaching influence on and is of significant importance to the development of the ancient culture of East Asia. This article aims at exploring this field of study. After the erudite scholar of The Five Classics made a voyage to the east in the early sixth century, The Book of Changes, the most important Chinese ancient classic expounding the theory of yin and yang, started to circulate among the Japanese court, via Baiji in the Korea Peninsula. As a result, the theory of yin and yang found its way to Japan. Examining the spreading channels, we learn that the theory's dissemination was largely related to the activities of Buddhist monks. Shoutoku Prince, regent of Japan at the time, was himself an enthusiastic supporter of Buddhism and was excelled in the study of The Book of Changes and the theory of yin and yang. In the Twelve Ranks System and Seventeen-article Constitution promulgated by Shoutoku Prince, the influence of the theory of yin and yang and of the theory of the five elements can be visibly discerned. This obviously proves the sublime status of the Chinese theory of yin and yang in Japan, thanks to the victory of the political clique that adored Buddhism. In the shaping course of ancient Japanese culture, the theory of yin and yang served as an important philosophical source of its development. Mythology based on Kojiki and Nihon Shoki, two earliest Japanese books that exist today, record mythological stories about the emergence of the Japanese nation. The notion about the birth of heaven and earth and the forming of Japanese Shinto, expressed in the mythological stories, not only tell us the source and historical progress of the Japanese nation but also the nation's world outlook in the transition from barbarian period to civilized period, as well as the basis for its philosophical thinking. All these were marked with profound influence of the Chinese theory of yin and yang. The theory of yin and yang, as one of the ancient Chinese academic thoughts, was accepted asa political belief when it first spread to Japan. The emergence and establishment of both the Mikado system and the centralized regime in ancient Japan drew largely on the theory of yin and yang and adopted it as an important philosophical basis to deify and aggrandize the "imperial power" so as to protect the authority of the imperial ruling and consolidate the established regime. Following the continuous strengthening and expansion of the centralized state power, the theory of yin and yang was further employed, and gradually "hidden" in Japanese culture with the passage of time, finally becoming the edge tool of ancient Japanese Mikados in exercising political power and controlling the country.

• 한국지능시스템학회논문지
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• 제1권2호
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• pp.16-34
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• 1991

It has been widely accepted that expert systems must reason from multiple sources of information that is to some degree evidential - uncertain, imprecise, and occasionally inaccurate - called evidential information. Evidence theory (Dempster/Shafet theory) provides one of the most general framework for representing evidential information compared to its alternatives such as Bayesian theory or fuzzy set theory. Many expert system applications require evidence to be specified in the continuous domain - such as time, distance, or sensor measurements. However, the existing evidence theory does not provide an effective approach for dealing with evidence about continuous variables. As an extension to Strat's pioneeiring work, this paper provides a new combination rule, a new method for mass function transffrmation, and a new method for rendering joint mass fuctions which are of great utility in evidence theory in the continuous domain.

• 한국응용과학기술학회지
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• 제27권4호
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• pp.452-460
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• 2010

Any theory of liquid should account for interactions between molecules, since molecules in a liquid are close to each other. For this matter statistical-mechanical methodology has been used and various models have been proposed on the basis of this methodology. Among them Kirkwood-Buff solution theory has attracted a lot of interest, because it is regarded as being the most powerful. In this article Kirkwood-Buff solution theory is revisited and its key equations are derived. On the way to these equations, the concepts of pair correlation function, radial distribution function, Kirkwood-Buff integration are explained and implemented. Since complexity of statical mechanics involved in this theory, the equations are applied to one-component systems and the results are compared to those obtained by classical thermodynamics. This may be a simple way for Kirkwood-Buff solution theory to be examined for its validity.

• 산업경영시스템학회지
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• 제10권16호
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• pp.173-182
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• 1987

Motivation models based on the Psychology have contributed to Predict and understand individual behaviors. During the many period, a various type of motivation models have been experimented by the researchers(i.e., need theory that is the first theory in motivation and equity theory, expectancy theory, reinforcement theory, and goal-setting theory centered on cognitive mechanisms). This article's objectives is to analyze motivation models mentioned above in the point of cognitive views (cognitive processes and cognitive mechanisms). Accordingly, the article's structure is consisted of five parts as follows. Part 1. Introduction. Part 2. The theoritical backgrounds of motivation. Part 3. The major theories of motivation. Part 4. The cognitive analysis of motivation theories. Part 5. Conclusion.