• Journal of Korean Medical classics
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• v.13 no.2 s.17
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• pp.14-20
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• 2000

Both of the three Um and three Yang and the six hyo(六爻) of Iching are based on Um and Yang theory and five phases theory. This paper is about mutual relation of them. First, every change in the universe is induced by Un and Ki. Un is the nature that things have their own. Ki is surroundings that things change in. Second, Un and Ki are not separate things. That is they are generated by each other. Third, both of them are the signs of change which means they are similar. The first Hyo (初爻) and Kwolum-pungmok(厥陰風木), the seond Hyo(二爻) and Soum-gunhwa(少陰君火), the third Hyo(三爻) and Teum-supto(太陰濕土), the forth Hyo(四爻) and Soyang-sanghwa(少陽相火), the fifth Hyo(五爻) and Yangmyung-zogum(陽明燥金), and the sixth Hyo(六爻) and Teyang-hansu(太陽寒水) have similar principles. It is important to make clear up their meanings and mutual relation.

• Architectural research
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• v.2 no.1
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• pp.35-40
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• 2000

Housing Adjustment is a set of creative human activities that take place to meet various housing needs. Thus far, numerous studies have given attention to speculate a typology of those activities on an empirical base. Overall, though, little is known about its theoretical underpinning, due to the independent nature of each individual study in interpreting differences in conclusions. This study examines and compares results from two previous studies on housing adjustment. Previous research on housing adjustment suggests that, other than household and housing characteristics, housing satisfaction as an intervening variable is deeply associated with the choice of housing adjustment involved in mobility, home improvement, or cognitive adaptation. The two studies used similar theoretical schemes, asked similar questions, yet one sample consisted of Korean American residents and the other sample was poor housing residents in Korea. This study shows that differences in sample characteristics lead to a strong discrepancy in interpreting Speare's (1974) satisfaction theory of housing adjustment. For Korean Americans, housing satisfaction turned out to be a good predictor of housing adjustment preference, while it is not the case for poor housing residents in Korea. This implies that findings of any Single study can not be generalized directly to the population as a whole. Thus, continued effort should be made to compare specific findings from various research studies, seeking explanations for differences in conclusions. Theory can be legitimately built and strengthened in this integrated manner.

• Strategy21
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• s.43
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• pp.225-247
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• 2018

The purpose of this study is to find out a significant influence of continental strategy theories on the development of maritime strategy theories. For this purpose, I examined similar and different parts of each theories and their implications when applied to different environment. In details, Chapter 2 deals with how continental strategy and maritime strategy theories are similar and different in general. In Chapter 3, I look into how Karl Clausewitz's theory that has been quoted the most by military strategy theorists had influenced over the theory of Julian Corbett, one of the representative English maritime strategy theorists. In Chapter 4, I study how the theory of Alfred Mahan that has also been quoted the most among the theories of maritime strategy had been influenced by Antoine-Henri Jomini's theory. And in Chapter 5, their contemporary implications and conclusions are drawn. According to my findings, unbelievably, the theories of maritime strategy had been influenced by existing continental strategy theories very much. Many similarities are found between them. However, at the same time, a large part of them is found significantly different from original ones especially when used to reflect the maritime distinctiveness. This means that the past maritime strategy theories and stored experience also wield influence, in many ways, yielding out much better ones in terms of applicability to changing environment. Therefore, devising new strategies with creative attitude using knowledges and experiences from both other fields and past ones is the virtue required for maritime strategists.

• Proceeding of EDISON Challenge
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• 2016.11a
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• pp.101-105
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• 2016

Prandtl's Lifting-line theory is the classical theory of calculating aerodynamic properties. Though it is classical method, it predicts the aerodynamic properties well. By lifting-line theory, high aspect ratio is critical factor to decrease induced drag. And 'elliptic-similar' wing also makes the minimum induced drag. But due to the problem of manufacturing, tapered wing is preferred and have been utilized. In this Paper, by using Edison CFD, verifying the classical lifting-line theory. To consider induced drag only, using Euler equation as governing equation instead of full Navier-Stokes equation. Refer to the theory, optimum taper ratio which makes the minimum induced drag is 0.3. Utilizing the CFD results, plotting oswald factor over various taper ratio and investigating whether the consequences are valid or not. As a result, solving Euler equation by EDISON CFD cannot guarantee the theoretical values because it is hard to set the proper grid to solve. Results are divided into two cases. One is the values are decreased gradually and another seems to following tendency, but values are all negative number.

• Journal of the Korean Society of Clothing and Textiles
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• v.20 no.6
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• pp.1116-1124
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• 1996

The factors to presume the shapes of bending and draping were examined in this study, by applying the similar phenomenon and theory of analysis. The findings were as followings: 1. The value of deflection angle (f) of deflection curve were almost consistent with those of K number and the shapes of deflection curve were congruent, under the condition of that the values of EI/w are almost similar and the lengths of samples are consistent. 2. The values of drape area, drape coefficient, mean of deflection angle, and $\pi$ number were consistently estimated and the shapes of drape were almost the same, under the condition of that the values of EI/w are similar and the diameter of samples are consistent. 3. In using the samples with different values of EI/w, scale factor, kl, was obtained from the formula, the shapes of bending of the referent samples and compsactive smaples was geometrically similar, which the lengths of samples were 1,1'and were satisfied with the formula, hi: L'11, and their $\pi$ number were also consistent. 4. In applying the samples with different values of Rllw, scale factor (kl) was obtained and then, when semidiameter of samples was adjusted to be satisfied with the formula, k1=L/L, the shapes of draping of referent samples and comparative samples were geometrically similar. Furthermore, their $\pi$ number was also consistent. 5. The shares of bending and draping could be changed in terms of three factors such as the lengths of samples, bending ridigity, and weigths per unit area. $\pi$ number was obtained from theory of similar phenomenon, which was index to presume shapes of bending and the shapes of draping getting from the three factors.

• Journal of the Korean Home Economics Association
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• v.48 no.6
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• pp.9-16
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• 2010

The formative exaggeration phenomenon, which makes the plastic space, escaping from the form peculiar to the human body, is being developed into the more diversified and abstract structure. This study analyzed the form and shape of costumes with objective attitude through the use of an oppositional concept method, which Delong presented from the formative viewpoint. Delong's theory, which was presented in this study, can be said to be one index that analyzed the form and shape of costumes. The costumes of the Renaissance Era, in which formative exaggeration is remarkable, are determinate in that they are closed and static, and can be classified into part, planer separation, and flat. The costumes of the Baroque and Rococo Eras are divided into similar formative perspectives, and can be said to be open, whole, and integrated due to indeterminate and diverse decorations. Entering modern times, the formative-exaggeration phenomenon in costumes of the Romantic Era are characterized by closed, part, and planer separation similar to costumes of the Renaissance Era. However, in the aspect of sleeve design and decoration, the characteristics of determinate and indeterminate were considered.

• Bulletin of the Korean Mathematical Society
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• v.47 no.1
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• pp.131-149
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• 2010

In 1992, the author introduced the definition and the properties of Wiener measure over paths in Wiener space and this measure was investigated extensively by some mathematicians. In 2002, the author and Dr. Im presented an article for analogue of Wiener measure and its applications which is the generalized theory of Wiener measure theory. In this note, we will derive the analogue of Wiener measure over paths in Wiener space and establish two integration formulae, one is similar to the Wiener integration formula and another is similar to simple formula for conditional Wiener integral. Furthermore, we will give some examples for our formulae.

• Journal of the Chungcheong Mathematical Society
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• v.7 no.1
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• pp.211-216
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• 1994

In this paper, we show that a continuous function $f:X{\rightarrow}X$ has regular coordinate then (X, f) has some properties which are similar to results following from a hypothesis of hyperbolicity.

• Journal of the Korean Chemical Society
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• v.68 no.1
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• pp.9-11
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• 2024

• Proceedings of the KIEE Conference
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• 2003.07b
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• pp.1247-1249
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• 2003

Despite many advantages, d-q theory was available only for three phase system. But recently, some papers proposed the application methods of d-a theory or similar theories for single phase systems. This paper presents the control method of the utility-connected single-phase inverter using d-q theory. The suggested method gives single-phase system instantaneous controllability and also makes the realization of APF(Active Power Filter) without DFT operation and PFC(Power Factor Controller) possible. This paper deals with utility-connected single phase inverter with PFC function. The controller was verified by simulation tool.