• Proceedings of the Korea Water Resources Association Conference
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• 2005.05b
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• pp.699-704
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• 2005

합리식(rational formula)은 일정한 강우강도를 갖는 호우로 인한 소유역의 첨두홍수량을 결정할 때 대표적으로 사용되고 있다. 기존의 합리식 틀 안에서 유역의 기하학적인 형상이 타원의 형태와 비슷하다면 유역의 형상을 고려한 수정된 합리식으로 첨두홍수량을 결정할 수 있다. 수정된 합리식에서는 강우가 전체 지속시간 동안 유역에 균등하게 분포한다는 기존의 합리식의 가정과는 달리 강우가 유효우량주상도의 각 시간간격에 균등하게 분포한다고 가정한다. 이러한 가정은 강우 지속시간이 도달시간 보다 작은 경우에도 합리식을 적용할 수 있음을 나타낸다. 따라서 본 연구에서는 유역의 기하학적인 형상이 타원형에 가까운 예곡천 유역에 합리식과 수정합리식을 적용 한 후 그 결과를 비교 분석하였다. 그 결과 수정합리식에의한 첨두유량이 합리식보다 상당히 적게 산정되었다. 이는 합리식이 식생이 발달한 투수유역에서 첨두유량을 과다 산정한다는 기존 연구결과와 일치하는 것이다. 따라서 수정합리식은 합리식 가정의 한계를 보완하면서 비교적 단순한 프로세스를 유지하고 있어 조건이 부합되는 소유역에서 유용할 것으로 판단되었다.

• Journal of Science and Technology Studies
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• v.1 no.1 s.1
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• pp.29-50
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• 2001

When 'rational' is understood to be 'complying with the principles of reason', we can discern two kinds of rationality---one is what may be called 'instrumentally rationality', which is involved in achieving an already fixed goal most effectively, and the other 'goal-directed' rationality, which we should have recourse to in finding out the desirable goals. The critical situations in the age of science is thought to be closely related with the fact that the 'goal-directed' rationality has been discarded as nonsensical. The goal-directed rationality was dealt a severe blow in the latter part of the last century, when the rationality of science was challenged by the scientific relativists. This paper investigates the possibility of making sense of the goal-directed rationality in the modern age of science.

• Proceedings of the Korea Water Resources Association Conference
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• 2022.05a
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• pp.193-193
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• 2022

소유역 내 첨두유량 산정 시 자주 활용되는 합리식은 유역 내 저류효과를 고려하지 못한다는 한계가 있다. 여기서, 저류효과를 고려하여 첨두시간과 첨두유량을 산정하게 되면 규모가 큰 유역에 합리식을 적용했을 때 발생 가능한 불확실성을 어느 정도 줄일 수 있다. 즉, 합리식의 경우, 집중시간과 동일한 지속기간에서 첨두유량이 최대가 되지만 저류효과를 고려하는 경우, 집중시간보다 긴 지속기간에서 첨두유량이 최대가 될 가능성이 크며 이에 따른 임계지속기간이 달라질 수 있다. 따라서 본 연구에서는 유역 내 저류효과를 고려한 합리식을 제안하기 위해 집중시간과 다른 지속기간에도 적용 가능한 선형저수지 이론 기반의 수정합리식을 개발하였다. 특히, 가상 유역 및 실제 유역 내 개발된 수정합리식을 적용함으로써 지속기간과 집중시간 간의 차이에 따른 첨두시간 및 첨두유량의 변동 특성을 분석·평가하였다.

• Journal of the Korean Society of Hazard Mitigation
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• v.7 no.4
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• pp.67-74
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• 2007

Rational method has been widely used to calculate peak runoff drainage design or small watershed because of simplicity and convenience. Runoff coefficient(C) is the most important parameter in the rational method which varies according to rainfall intensity, return period, rainfall duration time and soil characteristics. In practice, constant which is value of C in rational formula has been used from the table, originally based on ASCE. These table value does not consider the upper conditions of the depending factors, hence peak runoff calculation could be in correct. Therefore to calculate C in this paper we have devised an improved formula, considering relationship with rainfall duration, return period and CN of NRCS method. This formula is considered to be more reliable and helpful to the hydrologists and engineers to predict correct peak runoff.

• The Journal of the Korea Contents Association
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• v.21 no.7
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• pp.533-545
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• 2021

This study aimed to examine the differences in gender equality consciousness between latent profiles based on corporate workers' organizational culture types. To achieve the study's purpose, descriptive statistics, correlation analysis, and latent profile analysis (LPA) were conducted using 253 Korean corporate workers' data. As a result of the analysis, the latent profiles of organizational culture recognized by corporate workers were classified into 5 profiles. We named each profile as high compete-low create culture, high compete-low collaborate culture, collaborate culture, high create culture, and high control culture based on each profile's organizational culture perception. The ANOVA test found statistically significant differences between the groups in the gender equality consciousness. This study is meaningful in that it reveals the relationship between the organization culture perception and the gender equality consciousness and suggested implications for the organizational-level intervention to improve the gender equality consciousness. It will provide basic data for your research.

• The Journal of the Convergence on Culture Technology
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• v.10 no.2
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• pp.333-341
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• 2024

So far, the rationality of management decisions has been limited to the economic rationality of maximizing self-interest. However, management rationality in the ESG era, which pursues the interests of the environment, society, and the company from the perspective of harmony and balance, requires new judgment standards. The goal of ESG management is sustainable development. Sustainable development goes beyond the accumulation of wealth, which was the goal of the past economy, and aims for the happiness of the entire society, including coexistence and fair development that develops together with the entire society. From Aristotle's perspective, the happiness of the entire society promoted by sustainable development is no different from the highest good of citizens, members of the community. Accordingly, this paper attempted to explore the new management rationality required for managers in the ESG era by comparing Aristotle's concept of citizenship with the concept of 'corporate citizenship', one of the main concepts of ESG management. Through this, we sought to show that companies are essentially communal entities and that the company's pursuit of profit requires rationality of balance and harmony with environmental and social interests.

• Korean Journal of Cognitive Science
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• v.18 no.3
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• pp.245-254
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• 2007

It is an orthodox in epistemology that only those things that affect the truth conduciveness of a belief are relevant to the epistemic rationality of the belief. I criticize this orthodox. In this paper, 1 claim that the epistemic worth of a subject affects the epistemic rationality of inquiries and resulting beliefs. More specifically, I argue that it is epistemically irrational to conduct an inquiry when it is about something unworthy of knowing, and that the epistemic irrationality of an inquiry in this sense makes the resulting beliefs epistemically irrational. After presenting my argument, I defend it from various possible criticisms. Then I explicate the implications of my argument that opposes the core assumptions of contemporary epistemology.

• Proceedings of the Korea Water Resources Association Conference
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• 2004.05b
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• pp.173-177
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• 2004

수리${\cdot}$수문 분석시 비교내상으로 사용되고 있는 기존 합리식을 국내외 자료를 통해 고찰하여 적합한 확률론적 합리식을 나타내고, 선행강우조건, 토지 이용도, 경사도, 그리고 재현기간이 고려된 수정 유출계수를 제시한 후, 유출계수의 객관적인 산출이 가능한 GIS기법을 도입하여 설계자의 주관을 배제할 수 있도록 하며, 국내 시험유험에 적용하여 유역 특성이 고려된 유출량을 산정할 수 있도록 하는 것이다. 제안된 수정유출계수는 국내 시험유역의 하나인 설마천 자연하천유역에 도입하여 적합성 여부를 검토하였으려, 자연하천유역에서 사용가능한 수정유출계수를 제안하였다.

• Korean journal of communication and information
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• v.30
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• pp.89-119
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• 2005

The purpose of this essay is to converge the theory of communicative action Into the new paradigm of 'public relations democracy.' The notions of communicative action rationality, the public sphere, and deliberative democracy led new public relations paradigm approaches including meaning sharing, media access enlargement, and theoretical ramifications for the powerless. As Habermas prospected the power of comprehensive rationality to solve post-capitalist problems, the paradigm of public relations democracy visions the new era of public relations equipped with rhetorical and critical approaches. The new paradigm tries to overcome functional fallacy and embraces the concept of public interest. The paradigm of public relations democracy aims at integrating all three levels of public relations activities such as individual, organizational, and social levels, and pursues to enlarge the public sphere through increasing communicative actions and resolving social conflicts. Habermas's critical theory exhibits an opportunity for public relations theory building.

• Journal of Energy Engineering
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• v.29 no.2
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• pp.40-60
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• 2020

When various kinds of products are produced from a single energy system, the methodology which allocates the common cost to each product cost is very important because it is directly related with the profit and loss of producer and purchaser. In the cost allocation methodology of electricity and heat for CHP, there are heat method, work method, benefit distribution method, exergy method, and so on. Benefit distribution method is the most widely known worldwide, and exergy method is widely recognized among thermal engineers. As a result of review, it is judged that the rationality of benefit distribution method is low because the result deviates from common sense, and the rationality of exergy method is high because the result consistent with common sense. In accounting, it is calculated as merit methodology and the result is used for negotiations between producer and buyer, but In thermal engineering, the rationality of exergy methodology is described only as a thesis. The purpose of this study is to compare and examine the rationality of merit methodology and exergy methodology, and the aim is to describe in detail in order that producer and buyer can understand the rationality of each methodology.