• 한국지역지리학회지
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• 제14권4호
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• pp.367-381
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• 2008

본 연구는 대구시 상업지역의 공간분포 및 계층구조 변화를 분석한 것이다. 분석기법으로 집중지수, 집중화계수 및 특화계수를 이용하였으며, 1985년$\sim$2003년의 기간을 고찰했다. 도시인구의 성장과 함께 도시적 토지이용이 증가되었다. 인구 성장 118%에 비해 상업입지량 증가율은 330%에 달하였다. 주요 상업적 토지이용은 판매업이 가장 높고 그 다음이 업무, 식품 순이다. 업종별 공간 분포의 분석에서 숙박, 의료, 운수창고 및 위락 등이 집중도가 높으며, 도시 외곽으로 갈수록 특수상업지구를 형성하였다. 판매업의 분산화가 가장 높게 나타나고 있으며, 식품, 업무도 분산 성향이 높았다. 한편 분석기간 동안, 도심부의 상업 집중 성향이 나타나고 있다. 도심핵의 공간적 확장과 함께 도심 주변지역의 상업 집중 또한 증가하는 추세이다. 도시상업의 공간구조는 단핵도시의 성격이 강화되고 있다. 그러나 내부시가지의 결절에 2계층의 중심지들이 생성되면서 다핵화의 과정에 있고, 특히 동대구역 역세권 지역은 부도심으로 성장할 잠재력을 나타내고 있다.

• 한국주거학회논문집
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• 제16권1호
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• pp.97-104
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• 2005

The purpose of this study is to understand changes of the population and family composition in apartment houses. The main contents of this study is to find the way of housing planning through the analysis of the population and family composition by the unit types. The population and family composition were studied by computer data base program to 11,000 residents of selection 4 apartments houses. The structure of the family types proved to be constant by the result of analyzing the 10 family types. If the family types of certain resident's groups are given, this study will be able to estimate population structure to them. The transition of the population and the family composition changes to the unit types proved to be constant by the time. The distribution of manhood and matured children is tend to change according to how large the size of house is, and to change the structure of family composition.

• 한국안전학회지
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• 제23권5호
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• pp.97-104
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• 2008

This study was intended to evaluate the permeable performance through a change of reinforcing materials, curing condition, durability evaluation and permeability test, and to select the reinforcing material which could reduce the durability and water tightness from it, as the study for considering how the change of the outside's environment factors that the concrete structure actually contacted with impacted the concrete's durability especially the permeability by referring to such the background of the study. Accordingly, it was judged that evaluating the permeability by considering the severe environment condition where the concrete structure was placed in was more reasonable than measuring the existing permeability coefficient conducted in the sound state for the permeability evaluation of actually-used concrete structure. In this study, it also could be known that the specimen of hybrid fiber reinforced concrete which mixed the long and short steel fiber was the most effective for water tightness enhancement in severe environmental conditions.

• 대한한의학원전학회지
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• 제33권3호
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• pp.63-89
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• 2020

Objectives : To suggest conditions that will allow for change in Traditional Korean Medicine (TKM) curricula through analysis of the failure of widespread acceptance of the integrated curriculum into all Traditional Medicine Colleges. Methods : First, the process of change between TKM education and medical education was compared. Next, the conditions that would stimulate change in TKM curricula were analyzed in three levels: structure, policy, and actor. Results : TKM colleges have not experienced a structural change from the six-year to four-year structure. The accreditation standards of TKM education (KAS2021) should be more supportive instead of forcing change, and the goals should be reset to education improvement instead of meeting the standards of WFME. The deans' leadership and professors' ownership over their subjects need to be modified. A group of professionals that could lead change is required, while other factors such as full-time professorships, clinical practice hours, obligatory teaching hours and overall teaching environment need to be improved. Conclusions : It would be ideal if individual TKM colleges created success models of curricula change-despite the time and effort that is required-that could spread to other colleges. After the new curriculum has been accepted in more that half of the total eleven TKM colleges, an institutional isomorphism can be demanded.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2002년도 학술논문발표회
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• pp.31-36
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• 2002

Recently, more interests in surface treatment of structure with water repellent agent are steadily increased, But, investigation of its properties such as protection, durability, morphology of micro structure is not sufficient. Therefore, This paper is aimed for the investigation of water repellent property and change of morphology of micro pores in mortar that is treated by water repellent agent(Inorganic polymer based material). Water repellent property, water absorption coefficient, air permeability, porosity and the observation of micro structure was investigated in different water repellent agent type. The test results indicated that water repellent treated mortar showed low absorption coefficient and air permeability(breathing effect). This is why inorganic polymer is coated at the wall of capillary and micro pores, also, the volume of micro pore is reduced without the change of morphology in micro structure.

• 한국언어정보학회:학술대회논문집
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• 한국언어정보학회 2002년도 Language, Information, and Computation Proceedings of The 16th Pacific Asia Conference
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• pp.195-204
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• 2002

The purpose of this paper is to analyze the lexical-semantic structure of morphologically derived passive verbs in Korean based on Pustejovsky (1995)'s Generative Lexicon Theory (GL) and to explain the change of the root verb's lexical-semantic structure by means of passivization. Passivization in this paper is defined as the unaccusaztivization. In Argument Structure of derived passive verbs, the agent argument is deleted and the theme argument is realized as a syntactic subject. As for Event Structure, derived passives express left-headed event (achievement), whereas their roots denote right-headed event (accomplishment). In Qualia Structure, passive verbs and root ones have the same Fomal Role, but in Agentive Role of passive verbs, an act weakens to a process. Both Formal and Agentive Roles have the same theme argument.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2005년도 춘계학술대회 논문집
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• pp.753-756
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• 2005

Rapid prototyping (RP) technologies are mainly performed by layered manufacturing (LM) process which manufactures 3D physical objects by depositing 2D sections in a direction. Thus, deformations are apt to occur in overhanging area of the RP processed part. Also, excessive adhesion between part and platform of the RP apparatus is generated. In order to prevent these problems, most of the RP technologies adopt support structure. Main element to support a part in the support structure is strand. In actual field, however, the number of strand is determined by the software operating reference guide or RP system operator's experience. In this paper, a methodology to determine the optimal strand spacing is presented through experiments and measurements for the SL part deformation by change of strand spacing and part weight in the support structure of the stereolithography.

• 한국항해항만학회지
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• 제44권5호
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• pp.407-413
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• 2020

In this paper we examined a novel extension of the convergence empirics for the maritime business cycle which considers structure breaks and/or changes. To provide theoretical justification, the convergence hypothesis uses the relaxed assumption to technology shocks. Based on the recent empirical results provided by Kim and Chang (2020), we consider nonlinear dynamics that capture the properties on structural changes in the equilibrium adjustment process. This approach bridges the gap between the theoretical framework and empirical specifications. In particular, we applied the convergence hypothesis to the multiple structure change model for the maritime business cycle. Our application to the maritime data showed support of the convergence hypothesis allowing multiple structure changes during the high volatile period and offers additional insight into the forecasting maritime business cycles.

• Journal of Advanced Marine Engineering and Technology
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• 제19권3호
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• pp.42-49
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• 1995

In this study, the optimum structural modification of the L-type structure by shape changes is suggested. The vibration characteristics of L-type structure are analyzed by the sub-structure synthesis method, and the coordinte sensitivities of each sub-structure are calculated and the change quantities of the positions to be modified are suggested by using the coordinate sensitivities. The results obtained are as follows : 1. The sensitivities of the natural frequency could be calculated by the sensitivity analysis. 2. The change quantities of the position to be modified could be suggested by the optimum structural modification method. 3. The developed program could reduce the process and time of computation, since the sensitivity was directly calculated by differential method, not finite difference method.

• 한국언어정보학회:학술대회논문집
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• 한국언어정보학회 2001년도 학술대회 논문집
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• pp.25-58
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• 2001

This study explores the lexical-semantic structure of derived causative verbs in Korean based on Pustejovsky(1995)'s Generative Lexicon Theory (GL), Mor-phological causative verbs are derived from their root stems by affixing ‘-i, -hi, -li, -gi’ in Korean and the meanings of derived predicates are closely related to the meanings of their root verbs. In particular, the change of the ARGUMENT STRUCTURE by morphological derivation leads to the change of the EVENT STRUCTURE. In this study, causation is defined as the cause-effect relation having a causer. The ARGUMENT STRUCTURES of derived causative verbs includes a causer argument, which is added to the ARGUMENT STRUCTURE of their root verbs. Their EVENT STRUCTURE has a headed process related to a causer and their result is the event which their root verbs represent. This approach can also suggest that the (in)directness of causative is determined by which verb is its root and explain the difference between the morphological causativization and the syntactic causativization in Korean.