• Communications for Statistical Applications and Methods
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• 제16권3호
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• pp.519-528
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• 2009

This paper deals with nonparametric estimation of discontinuous regression curve. Quite number of researches about this topic have been done. These researches are classified into two categories, the indirect approach and direct approach. The major goal of the indirect approach is to obtain good estimates of jump locations, whereas the major goal of the direct approach is to obtain overall good estimate of the regression curve. Thus it seems that two approaches are quite different in nature, so people say that the comparison of two approaches does not make much sense. Therefore, a thorough comparison of them is lacking. However, even though the main issue of the indirect approach is the estimation of jump locations, it is too obvious that we have an estimate of regression curve as the subsidiary result. The point is whether the subsidiary result of the indirect approach is as good as the main result of the direct approach. The performance of two approaches is compared through a simulation study and it turns out that the indirect approach is a very competitive tool for estimating discontinuous regression curve itself.

• 철학연구
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• 제130권
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• pp.219-246
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• 2014

개별선과 공동선은 서로 대립적인 관계 또는 우월관계에 있는가? 이 물음에 대해 토마스 해석자들 사이에 대립적인 의견이 존재한다. 어떤 학자들은 토마스의 텍스트들이 개별선에 대한 공동선의 우위를 가리킨다고 주장하고, 다른 학자들은 반대로 개별선의 우위를 주장하기도 한다. 그러나 면밀히 검토하면 토마스는 개별선과 공동선의 대립이 아니라 양자의 통일을 주장했다는 것이 드러난다. 토마스의 윤리학 및 정치철학은 개인을 출발점으로 삼고 있지만, 토마스에게서 개인은 단순한 개별자가 아니라 종적인 본성에서 일치하는, 개별화된 본성을 가진 개별화된 보편자이다. 한편 토마스에게서 선은 존재자의 완전성을 의미하며, 존재자의 가능성이 전체로서 완성되었을 때에만 그 존재자는 단적인 의미에서 선하다고 말할 수 있다. 그러므로 만일 개인이 개인으로서의 완성만을 추구한다면 부분적 선만을 추구하는 것이 된다. 따라서 단적인 의미에서의 인간의 선은 공동체를 통해서 실현될 수밖에 없다. 그런데 토마스에 따르면 공동체의 목적은 구성원들이 덕에 따르는 삶을 살기 위한 것이다. 덕이 그것을 가진 인간과 인간의 행위를 선하게 만드는 것인 한 공동체는 구성원 각각의 완성을 추구하게 된다. 이러한 의미에서 개별선은 공동선을 통해서, 다시 공동선은 개별선을 통해서 이루어지는 상호간의 일치가 일어나게 된다. 그런데 공동선을 통해서 실현되는 개별선이 올바른 목적지향을 갖지 않는 한 여전히 불완전한 상태에 놓여 있다고 말할 수 있다. 따라서 단적인 의미에서의 인간의 선은 최고선과의 정당한 질서관계 속에 놓여 있는 공동선과 개별선의 통일에서만 발견될 수 있다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제14권2호
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• pp.702-723
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• 2020

The application of machine learning (ML) in intrusion detection has attracted much attention with the rapid growth of information security threat. As an efficient multi-label classifier, kernel extreme learning machine (KELM) has been gradually used in intrusion detection system. However, the performance of KELM heavily relies on the kernel selection. In this paper, a novel multiple kernel extreme learning machine (MKELM) model combining the ReliefF with nature-inspired methods is proposed for intrusion detection. The MKELM is designed to estimate whether the attack is carried out and the ReliefF is used as a preprocessor of MKELM to select appropriate features. In addition, the nature-inspired methods whose fitness functions are defined based on the kernel alignment are employed to build the optimal composite kernel in the MKELM. The KDD99, NSL and Kyoto datasets are used to evaluate the performance of the model. The experimental results indicate that the optimal composite kernel function can be determined by using any heuristic optimization method, including PSO, GA, GWO, BA and DE. Since the filter-based feature selection method is combined with the multiple kernel learning approach independent of the classifier, the proposed model can have a good performance while saving a lot of training time.

• 한국조경학회지
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• 제35권3호
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• pp.92-104
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• 2007

This paper aims to discussion the characteristics of location and spatial organization on Hongneung and Yureung(royal tomb) in Namyangju through the interpretation of traditional oriental philosophy including Feng-Shui theory. To do this, we studied in two ways; analysis of the present conditions and photographing research materials about the form of physical structure and review of historical document. The result of analysis in sight of the location and spatial structure was good matched. Main finding of this paper are as follows: The location and landscape structure was characterized by the harmony with natural following traditional thinking and the Korean view of nature, while maintaining the dignity of the King. The spatial organization were placed in a straight line following the hierarchy of metaphysics by order of Neungchim(Tombs Vicinity) - Changmyungdeung(Stone Lantern) - Chungjakak(Pavilion) - Hongsalmun(Gate for Heavenly Gods) and was based on the Confucianism value, the natural contour and inner value. Through this study, we find the principles made it possibles to re-evaluate nature in modem society and provided us with new ways to conserve nature with the help of environmental theory.

• 한국수소및신에너지학회논문집
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• 제29권4호
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• pp.370-377
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• 2018

Ball valve has been widely used in the field of high-pressure gas pipeline as an important component because of its low flow resistance and good leakage performance. The present paper focuses on the flow nature at the downstream of the ball valve used for gas pipelines according to valve opening rates. Steady 3-D RANS equations, SC/Tetra, have been introduced to analyze the flow characteristics inside the ball valve. Numerical boundary conditions at the inlet and outlet of the valve system are imposed by mass flow-rate and pressure, respectively. Velocity distributions obtained by numerical simulation are compared with respect to the valve opening rates of 30, 50, and 70%. Cavity distributions, asymmetry flow velocity and the flow stabilization point at each opening rate are also compared. When the valve opening rates are 30 and 50%, the flow stabilization requires the sufficient length of 10D or more due to the influence of the recirculation flow at the downstream of the valve.

• 한국물환경학회지
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• 제30권6호
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• pp.596-604
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• 2014

This research has studied the physicochemical environmental factors and communities of epilithic diatom and phytoplanktons at Hongcheon river from December 2011 to September 2012. In case of TN, the result was hypertrophic, and for TP, it ranged from mesotrophic to eutrophic. As for BOD, Hongcheon river was rated level II or better, according to the water quality level; values were found to be below 3mg/L at most sites. Total of 83 and 114 taxa of epilithic diatom and phytoplanktons respectively, were found during the research. When assessed using the TSI, it ranged from oligomesotrophic to eutrophic. In case of DAIpo, it ranged from 64.1 to 99.5, and TDI ranged from 51.5 to74.0. These results signify good water quality, level B or better, for Hongcheon river. P-IBI was rated moderate to low, which showed higher pollution than other indices. Among the biological water quality measures analyzed in the Hongcheon river study, DAIpo best matches TDI and BOD, while TDI showed greater pollution. Therefore, P-IBI appears to be inappropriate when assessing the domestic small rivers and lakes.

• 건축역사연구
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• 제10권3호
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• pp.25-43
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• 2001

The purpose of this study is to investigate the meaning of letter-shaped house plan of the Imchongak in Andong and to Analyze its housing principles. The letter-shaped house plan of the Imchongak lays its root in the traditional Eastern thoughts, showing feature of Taolsm. The Imchongak applied the principles of a good land and a good house, which are originated from the Yonyang theory, Five elements theory, Poongsochiri, housing principles and letter shapes of good fortune. The letter shape of the Imchongak is 用(as below), and 日, 月, and 明 are contained in it. The lette 明means brightening the mind and life of human being by himself. The letter 用 is shaped to express the idea of Cheayong Theory of Confucianism, which refer to everlasting interaction of all thing in the universe. In applying the housing principles, Potaebob was used for the orientation of the house. Samhabbob, Jungeomjungyangbob and Dongsusataecbob were utilized to locate the gate. In addition, Dongsusataecbob was used for the positioning of rooms in most cases. The Imchongak succeeded traditional Eastern thoughts and it realized the concept and philosophical idea of Confucianism as a house. What is importan in the house plan of the Imchongak is that it repesents the ideal of Confucians in Chosun Dyansty that the man, house, nature, and universe are one. It also advocates ideology of Confucianism which emphasizes that a human life can be completed when man live together with the nature and harmonize themselves with it.

• 복식
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• 제52권3호
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• pp.87-98
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• 2002

The purpose of this research is to investigate the difference on c1othing image evaluation in the ratings between men and women. For this study, pilot test was conducted to 50 clothing majored university students to explore the stimulus of 'cute', 'casual', 'sexy', 'elegant', 'intelligent', 'formal', 'romantic', 'individual', 'refined' for the 9 each image styles from the 32 spring wears in fashion magazine $\ulcorner$FARBE$\lrcorner$(March. 2000). On the basis of the preliminary survey, the question items explored the 15 pairs of polar adjectives as seven-point Likert Scale. The main survey was preceded 94 female and 111 man of university students from March 13 to 24 in 2000, twice for 7-days interval. There were significant differences between the two sexes for each style image ratings. It was found that the female was recorded mote ordinary, stable. refined. superior, plain, like than the male for intelligent style. Meanwhile, the intelligent style was evaluated well on in years by female, but male young. The female tended that elegance style was more stable, warm and less young than the male. The cute style was evaluated more light, tender, feminine, young by the female than the male, find the female looked warm while the male cool. The formal style was more stable, unrefined. solid, unfamiliar dislike, old by the female than the male. The casual style was revealed plain and warm by the female while splendor and cool by the male, the female more active, tender, familiar than the male and individual, attractive and poor quality than the female. The sexy style was evaluated more active, good appearance, young than the female, tender than the male and the female dislike a bit while the male like. The female evaluated the refined style for more stable. refined. superior good appearance and nature than the male. The romantic style was evacuated more like, refined, superior, good appearance nature and familiar by the male, but the female a bit unfamiliar. The individual style was revealed that the female evaluated cool and a bit dislike while the male warm and like, and the male more refined, feminine, young than female.

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2007년도 춘계학술대회 논문집
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• pp.79-80
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• 2007

Office interior design is based on the understanding of diversity information about working program, organization and networking system of the company. To build a good working environment, flexibility of space and communication between employees and employer in the office are very important. Due to the business growth, the "N" company requires more working space and this project is basically initiated to relocate in new working environment. This work pursues the clients can enhance more creativity and productivity in their working area. In order to promote the efficiency and comfort of the working environment, diverse employee's working characteristic, individual and collective requirements have been observed. The basic concept of the design can be summarized in the following : youth, simplicity, modern and nature.

• Fibers and Polymers
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• 제2권1호
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• pp.131-134
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• 2001

Living cationic polymerization behaviors of isobutyl vinyl ehters (IBVE), initiated by iodomethyl methyl ether (IMME)/zinc iodide ($Znl_2$) have been investigated. The polymerization was carried out at 0, -15, and $-30^{\circ}C$ in toluene. It was found that the rate of polymerization increased as the IMME concentration increased and decreased as temperature decreased. 100% conversion was always achieved without exception. Furthermore, the number-average molecular weight ($M_{n}$) of polymers increased in direct proportion to monomer conversion. The molecular weights of polymers were in good agreement with the theoretical values, calculated on the basis that one polymer chain was formed by one IMME molecule and the values of polydispersity index are always less than 1.2, revealing the living nature. The living nature was also confirmed by synthesis of poly(IBVE-b-TBVE) by subsequent monomer addition of t-butyl vinyl ether (TBVE).