• Journal of Korea Water Resources Association
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• v.41 no.6
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• pp.587-595
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• 2008

In order to aid the derivation of the IDF relationship for a station with insufficient duration-rainfall data, an approach to derive a simple and practical IDF formula is presented. The IDF formula is described simply by the term of the two parameters and a design frequency. The model parameters were estimated from a statistical technique based on the normal distribution of transformed rainfall intensities. In order to give the transformed data, both the Kruskal-Wallis statistic and the Manly transformation of duration-rainfall data were adopted. With the methods, the proposed IDF formula becomes a simpler model that compares well with conventional form. In addition, it allows avoiding an exceptional condition of the higher rainfall intensity for longer duration. The performance of the proposed formula was evaluated by using the limited rainfall data for short duration from two gauge stations. The result showed that the IDF formula developed in this work was an effective tool, providing a reliable relationship between the intensity and duration even though insufficient data are only available.

• Proceedings of the Korea Water Resources Association Conference
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• 2011.05a
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• pp.110-110
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• 2011

최근 국제적으로 물관리의 차세대 개념으로서 지능형 물관리(Smart Water Grid)가 활발하게 논의되고 있다. 우리나라에서도 일부 학자들을 중심으로 이에 대한 개념이 도입되고 있다. 현재까지 정리된 지능형 물관리의 개념은 최근 급성장한 정보통신기술을 활용하여 기존에 비효율적으로 운영되는 물관리의 시스템을 획기적으로 개선하자는 것이다. 따라서 이론적으로는 물의 생산, 정수, 배송 그리고 이용과 처리에 이르는 전 과정을 실시간으로 통합하여 관리하는 것이 가능하다. 국제적으로는 IBM과 Siemens 등과 같이 정보통신과 물산업을 선도하는 기업 주도의 기술개발이 진행되는 단계이다. 2000년대 초반에는 용수수급의 효율화를 위한 장치개발에 주력하였으나, 현재에는 용수수급과 관련된 제반사항에 대한 기술적 통합시스템 구축으로 적용범위를 넓히고 있다. 우리나라에서도 도시인프라 자료의 통합관리와 수질 모니터링 시스템 구축이 추진되었으며, 2010년 12월 발표된 새만금종합개발계획에서는 본격적으로 활용을 검토하고 있다. 그러나 지능형 물관리의 기술적 통합시스템 전략은 곧 심각한 제도적 장벽에 직면할 것이다. 아무리 우수한 기술적 시스템이 개발된다고 하여도 제도적 기반의 구축이 없으면 국민경제에 도움이 되는 현실적용에는 한계가 있다. 기존에 확립된 물관리의 제도적 기반으로는 한정된 지역의 좁은 영역에서 활용될 수밖에 없다. 이것은 우리나라의 물관리가 기본적으로 법적, 제도적, 행정적 차원에서 분리되어 운영되고 있기 때문이다. 본 연구는 지능형 물관리가 지향하는 기술적인 통합시스템 구축이 당면할 제도적 한계를 도출하고 이를 극복하기 위한 정책적 방향을 제시하고자 한다. 또한 2009년 국회에 제출된 물관리기본법(안)에 지능형 물관리의 개념을 도입하는 방안을 모색하고자 한다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.12 no.3
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• pp.163-171
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• 1992

The narrow interal grid is effective in accuracy, but it is not able to make a densely grided sample, so that smoothing is requared. In digital elevation models, an application of the finite elements method is effective to smooth the undesired noise which is generated in aquisition of elevation data. And this is one of the simple and direct method to solve the problem for discontinuity of terrain. Therefore, the finite elements method is applied to study. In digital elevation model by appling the finite element, smoothing is affected by the height weight. In this study, the relation equation between elevation weight and standard deviation of smoothing was obstained as Y = 1900625 $X^4-312987.6$ $X^3+20330.72$ $X^2-578.6029$ X+12.63772 and from this function, Optimum elevation weight is 0.05.

• Cartoon and Animation Studies
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• s.49
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• pp.537-561
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• 2017

Machines and robotic structures are questioning existential bases of human beings. They influence our way of thinking and transform our social philosophies and value systems. The same time they keep their fascination ever since. Mechanical technique and skills are symbols for development and hazard at the same time. The attraction of this ambivalence is reviewed in this thesis by having a look at kinetic elements in modern sculpture. The author is focusing on classical sculptural positions that use machines or machinery within sculptural artworks. The historical development is examined and certain examples from the classical modern era are discussed as role models during their time. On this scenario, the portraits of two young contemporary outstanding positions in the field of kinetic art and installation are analyzed and explained. One of the goals was to investigate the eastern and the western language of two artists that are doing artworks in the same field and compare the works and the cultural expressions to each other. Different cultural positions and visual languages become visible due to the research. And the author's final conclusions is, that even in a globalized world there will always be significant local distinguishes remaining.

• Applied Chemistry for Engineering
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• v.21 no.5
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• pp.575-580
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• 2010

Forest fires in Korea, having forest coverage of 70%, have kept increasing in number and scale since the middle of 1990's. Although deposited fallen leaves in forests such as herbaceous plants, conifers, and broadleaf trees are used as a medium for forest fires, the pyrolysis and combustion characteristics of the various species of trees are hardly studied. Oriental oak is the representative broadleaf tree in domestic forests, and pyrolysis and combustion of oriental oak leaf were carried out by thermogravimetic analysis (TGA). The leaf of oriental oak was ignited at $239^{\circ}C$ whereas pyrolysis started at $250^{\circ}C$. The corresponding kinetic parameters including activation energy and pre-exponential factor were determined by differential method over the degree of conversions. The values of activation energies for pyrolysis were increased as the conversion increases from 10% to 80%, whereas those of values were decreased during combustion.

• Archives of design research
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• v.14 no.3
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• pp.27-36
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• 2001

Minor enterprises can successfully build up their market share plans in a relatively shorter time than compared with major enterprises, which require long time for design developments in their big organization. Therefore, there are some items that are more suitable to the minor enterprises. For example, computer desk may be the one. It must be one of the strategically suitable items of minor enterprises rather than of large enterprises because of their own easy production policies. This paper is based on a research report that I submitted to Gyongsan-Si, Gyongbuk-Do which supported a small company for a special purpose of its provincial economic policy. I took part in the research and suggested five types of characteristic concepts and the ideas. And as a result. the type war accepted as the most appropriate one of them to produce. And the acception was based on the following five factors; consumer's need, productivity, proper price, energy saving, and user' easiness.

• Journal of Korean Society for Geospatial Information Science
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• v.22 no.3
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• pp.31-37
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• 2014

It is usual for the officially land price of agricultural field parcels to be determined by real estate appraisers's experienced knowledge and intuition without considering quantitatively physical factors that directly influence agricultural productivity. Solar radiation is the most important predictor of agricultural productivity. GIS based simulation techniques were used to evaluate correlation between the officially land price and solar radiation for agricultural field parcels. The results show that officially land price shows random distribution patterns in relation to solar radiation, which proves that officially land price for agricultural field does not reflect agricultural productivity. It is anticipated that this research output could be used as a valuable reference to support more scientific and objective decision-making in the official pricing process of agricultural field parcels.

• Applied Biological Chemistry
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• v.6
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• pp.33-36
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• 1965

1. The extraction of securine, an alkaloid, from Securinega suffruticosa Rehder growing in Korea was investigated. 2. The distribution of the source plant in Korea is considered to be most intense among the Fareast countries. 3. The extracted material was identified to be genuine securinine viewing from melting point and microscopic observation. 4. The yield of the substance in this study was 0.075% in average. The less amount of recovery may be due to the collection of the plant in October instead of that in the prime season. 5. There should be more efficient way in the separation of resinous impurities from the crude product. Application of Chromatographic technique and selection of more efficient solvent will be investigated hereafter.

• Convergence Security Journal
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• v.13 no.2
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• pp.85-93
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• 2013

Today, the structure of terrorist organizations in the form of a variety of network complexity are evolving. However, terrorist organization not combining randomly generated network but preferential attachment a network. So, it's research should be preceded a better understanding about the characteristics and type of terror network for a effective counter-terrorism policy of law enforcement. In addition, the appropriate response strategy have to technique establish in an era of smart media. In particular, homegrown terrorist attacks on unspecified people without boundaries of countries and regions unlike the traditional terrorism. Also, homegrown terrorism are violence and criminal activity by new various of religion, politics, philosophy. Besides the extreme members of homegrown terror networks went grow up through the evolutionary process in the age of smart media. Law enforcement agencies must identify the terrorist network at the national level. Therefore, terror networks evolving in the online space, forming a radical homegrown terror organizations have access to the network. Intelligence community track terrorist networks and to block the negative aspects of the smart media outlets should be considered.

• Journal of the Korea Safety Management & Science
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• v.14 no.3
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• pp.259-268
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• 2012

조직에는 조직의 목적을 효율적으로 달성할 수 있도록 조직구성원들을 움직이게 하는 리더가 존재하게 된다. 조직 내에 달성해야 할 비전과 목표가 있고 그것을 수행해야 할 과업에 있어서 가장 필요한 것은 구성원들의 비전과 목표를 달성하기 위한 리더십이 중요한 요인이다. 리더십은 비전과 목표달성을 위해 다른 사람들의 행동에 영향을 미치는 과정이기 때문이다. 따라서 모든 유형의 집단이나 조직, 그리고 지역사회나 국가에는 효과적인 리더십이 필요하고 그 같은 효과적인 리더십을 발휘할 유능한 리더가 요구된다. 따라서 리더십은 모든 집단이나 조직의 중요한 자산이며 성공요인이 아닐 수 없다. 특히 중소기업의 경우 기업경영전반에 걸쳐 경영자의 기호나 의도에 따라 수시로 변하는 경우가 많고, 최고 경영자의 개인적 속성이 조직구조나 전략에 적지 않은 영향을 미치기 때문에 최고경영자의 리더십이 중소기업의 조직문화 형성에 대기업보다 훨씬 많은 영향을 미치고 있다. 변혁적 리더십은 사장이 카리스마, 지적자극, 개별적 배려 등을 통해 종업원들에게 기대를 능가하는 최고의 노력을 발휘하도록 동기부여 시키는 것이다. 변혁적 리더십을 발휘하는 사장은 종업원들의 욕구수준을 높여 주고 자신감을 심어줌으로써 성공에 대한 확신을 높여준다면 종업원들로 하여금 조직에 대한 몰입을 이끌어 낼 수 있고, 보통이상의 추가노력과 낮은 이직의도를 거둘 수 있다는 것이다. 따라서 본 연구는 연구의 목적을 달성하기 위해 연구와 관련된 선행연구자들을 분석하고, 이를 토대로 연구모형을 설계하여 중소제조업체의 CEO들에게 요구하는 리더십모형을 제시하였다. 중소기업의 리더십 유형을 카리스마적, 전략적, 거래적, 변혁적 이론 등을 기본으로 하여 기업에 어떠한 영향을 주는지를 이론을 통해 제시하였다. 이러한 리더십 유형들이 기업의 목표에 영향을 주는지를 분석한 후 여기에서 중소기업의 CEO에게 필요로 하는 리더십 유형을 제시하였다.