• Proceedings of the Korean Nuclear Society Conference
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• 1998.05b
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• pp.356-362
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• 1998

가동중인 터빈로터의 계속운전/보수/교체여부 등을 판단하기 위해 해외에서는 결정론적 방법외에 확률론적 파괴역학 해석방법을 이용하여 잔여수명을 평가하고 있다. 한편 국내에서는 현재까지 결정론적 방법을 주로 활용하고 있으며, 향후 확률론적 평가방법의 도입이 예상된다. 이러한 배경에서 본 논문에서는 터빈로터의 수명평가에 확률론적 파괴역학 해석기법을 이용하기 위한 기초연구로 터빈로터를 대상으로 응력해석, 결정론적 파괴해석 및 확률론적 파괴해석을 수행하였다.

• Korean Journal of Culture and Social Issue
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• v.9 no.spc
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• pp.123-147
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• 2003

This paper provides a comparative analysis of the probabilistic versus deterministic view of accident and safety using the indigenous and cultural perspectives. Death and injury due to accidents is the leading cause of preventable death in most countries, including Korea. The first part of this paper delineates the limitation of the linear, deterministic model that has been adopted in social and applied sciences. The transactional model, advocated by indigenous psychology, is provided to understand the probabilistic nature of accident and safety at home, in the workplace and in society. Second, factors related to accidents and safety are reviewed. Third, application of the probabilistic model for preventing accidents and promoting safety in Korea is outlined.

• Korean Journal of Logic
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• v.12 no.1
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• pp.45-87
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• 2009

이 글에서 필자는 결정론적 인과를 토대로 속성 수준의 인과와 사건 수준의 인과의 연관성을 주장하는 하우스만(Hausman 1998)의 이론을 비판하고 두 수준의 인과의 관계를 바르게 이해하는 데 무엇이 필요한지를 제시한다. 하우스만은 결정론과 배경 조건의 다양성을 토대로 그리고 비결정적 상황에서는 확률에 대한 결정론적 인과를 토대로, 속성 수준의 인과는 사건 수준의 인과에서 도출된다는 의미에서 속성 수준의 인과는 사건 수준의 인과의 일반화라고 주장한다. 필자는 그 관계에 대한 문제를 제기하고 이 문제는 사건 수준의 인과에 본질적인 인과 연결을 주목하지 않은 채 변수들 간의 의존 관계만으로 두 수준의 인과의 관계를 단순히 해명하는 데에 있다고 지적한다. 필자는 두 수준의 인과의 관계는 단순히 한 가지 관점이나 방식으로 파악될 수 없고 해명, 설명, 예측 둥 다양한 관점에서 복합적으로 파악되어야 한다고 주장한다. 특히 사건 수준의 인과는 속성 수준의 인과에 개념적으로 의존하는 관계를 주목한다.

• Journal of the Korean Recycled Construction Resources Institute
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• v.4 no.2
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• pp.172-179
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• 2016

For an evaluation of service life in RC(Reinforced Concrete) structures, deterministic method and probabilistic method considering random variables of design parameters are usually adopted. In the work, surface chloride contents which vary with distance from sea shore and height are investigated from the previous research literature surveys, and they are considered for service life estimation. Through the analysis, the probabilistic method shows much lower results, which is due to variations of design parameters and very low intended durability failure. In the deterministic method, the structures within 250m and higher than 60m are evaluated to be free from chloride attack. In the probabilistic method, those higher than 60m in all the region and higher than 40m and 250m from sea shore are evaluated to satisfy the service life.

• Korean Journal of Cognitive Science
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• v.24 no.3
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• pp.237-270
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• 2013

Determinism and compatibilism have thought that libertarianism contradicts the scientific view. This paper demonstrates that the hypothesis that free will exists does not cause any problems and contradictions, while maintaining pro-scientific view. Rather, determinism lacks scientific and demonstrative bases. At first, I reject dualistic self by assuming identity theory of the self and physical body & brain. Free will is a functional concept or property that can have multiple realization. Therefore we can recognize whether aliens or robots have free will through observation on their acts. 'Free will' is a functional kinds term like 'digestion'. As we know we have digestive function, we can know that we have free will even before knowing the necessity of its existence by understanding micro structure of human free will. The judgement that an individual has free will function depends on whether it has particular actions. Those actions are controlling and restraining actions in context, predicting future, making elaborate conditional sentences, etc. Real being of free will is the physical occupant of the function that makes those actions. Determinism is based on various kinds of misconceptions and misunderstandings. Determinists often confuse necessity of physical law and determinism. Another decisive misunderstanding is that free will postulates same conditions and different results from the same point of time. However, free will postulates that the two points of time are different. Because determinism is unnecessary redundant hypothesis influenced by religions, according to Ockham's Razor, determinism should be eliminated.

• Korean Journal of Logic
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• v.7 no.1
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• pp.23-40
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• 2004

실체 유물론과 인과 결정론이 개인의 자유와 동일성을 실질적으로 열어주려면 사건 원인 외에 행위자 원인의 여지를 허용해야 한다. 그 두 가지 원인은 법칙적 일반적 결정의 개념과 합리적 개성적 결정의 개념을 지니고 있다. 개성의 인과적 역할은 법칙화할 수 없는 물질성의 여지를 남긴다. 바로 그 가능성이 인간의 자유와 동일성의 실질적 복권의 가능성이다.

• Journal of the Korean Recycled Construction Resources Institute
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• v.4 no.3
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• pp.259-268
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• 2016

The service life evaluation in RC(Reinforced Concrete) structure exposed to chloride attack can be classified into deterministic and probabilistic method, and it significantly varies with design parameters. The present work derives PDF (Probability of Durability Failure) and the related service life considering time-dependent diffusion coefficient and internal parameters such as reference diffusion coefficient, critical chloride content, and time-exponent. When critical chloride content increases to 133.3%, the changing ratios of service life are 134.0~145.4% for deterministic method and 149.2%~152.5% for probabilistic method, respectively. In the case of increasing time-exponent to 200%, they increase to 323.8% for deterministic method and 346.0% for probabilistic method. Through adopting time-diffusion coefficient for probabilistic method, reasonable service life evaluation can be achieved, and it is also verified that increasing time-exponent through mineral admixture is very effective to extension of service life in RC structure.

• Nuclear Engineering and Technology
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• v.26 no.1
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• pp.100-107
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• 1994

A statistical methodology is developed for calculating the nuclear fuel pod internal pressure of Korean PWR fuel in order to reduce over-conservatism of the current KAERI deterministic methodology. The developed statistical methodology employs the response surface method and Monte Carlo calculation. The simple regression equation for the rod internal pressure is derived by taking into account the various fuel fabrication-related and fuel performance model-related parameters. The validity of the regression equation is examined by the F-test, $R^2$-method and Cp-test The internal pressure predicted by the regression equation is in good agreement with that calculated by he computer code using the KAERI deterministic methodology. The distribution of the internal pressure from the Monte Carlo calculation is found to be normal. Comparison of the 95/95 rod internal pressure predicted by the developed statistical methodology with the maximum rod internal pressure by the deterministic methodology shows that the developed statistical methodology reduces significantly over-conservatism of the deterministic methodology.

• Korean Journal of Construction Engineering and Management
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• v.8 no.3
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• pp.76-86
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• 2007

Construction development work invents profit as those finalize object, and a make or break success of project depends on correct analysis and forecast business feasibility at project early. Business feasibility study would be decision-making under precarious situation because is connoting uncertainty that is future. estimate at present visual point essentially. Under uncertainty, a decision-making method is based on probability theory of statistics, but business feasibility study had applied with not feasibility study by probabilistic decision method but it by determinism derision method so far. Therefore in this study doing decision-making by a probability theory method for successful project at early business feasibility study, it present a probabilistic study method that use simulation that can supply a little more correct and reliable data to decision-maker As result, a probabilistic study method is more suitable than deterministic study method as technique for a financial feasibility study of construction development work. Making good use of this probabilistic study method at important business or careful decision-making, because efficient Judgment that is based accuracy and authoritativeness may become available.

• Journal of the Korean Geotechnical Society
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• v.23 no.4
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• pp.125-132
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• 2007

The oedometer, radial CRS and Rowe cell tests, composite discharge capacity tests and smear effect tests are carried out to estimate the parameters for the reliability-based design of vertical drain method. Also the sensitivity analysis, the probabilistic and deterministic solutions of radial consolidation theory are presented. The result of probabilistic analysis was compared to that of deterministic analysis using the tested and estimated parameters. The results indicated that the drain spacing in the deterministic method is larger than that in the probabilistic method because the former does not consider the uncertainties in the geotechnical property. The divergence of two methods is dependent on the probability of achieving target degree of consolidation by a given time and the coefficient of variation (COV) of the coefficient of horizontal consolidation ($c_h$).