• KIEAE Journal
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• 제15권5호
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• pp.21-33
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• 2015

Purpose: Domestically, a recent controversial part on Mixed-Use Development is its case that utilizes railroad sites among urban infrastructure. but most of all, a concern is being concentrated on the Mixed-Use Development that uses railroad depot. It has the advantage, which can give diversity and publicness to urban environment by using and planing the upper and bottom of railroad depot, a proximity site as Development Available Land. However, there are few cases except for only Yang-cheon APT in SinJeong railway depot as a domestic case even though a domestic concern about Mixed-Use Development is rising more than ever. Method: Accordingly, this study has something in common with a domestic case, dealing with a case of development in Hongkong that enhances efficiency for city space through Mixed-Use Development and solves various urban problems. Result: A purpose of this study, based on overall comprehension about Rail and Property Model of MTRC in Hongkong, is to figure out how it solve various problems in Mixed-Use Development using Railway Depot or stations in the base of Rail and Property Model of MTRC.

• 한국정보과학회논문지:소프트웨어및응용
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• 제31권7호
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• pp.869-882
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• 2004

본 논문에서는 정형방법론의 일관성 검사방법을 유스케이스 모델링에 적용함으로써 논리적으로 일관되고 구조화된 요구사항 모델을 생성할 수 있는 방안을 제안하였다. 제안된 방안을 통해 서로 중복되거나 충돌할 수 있는 다중 사용자관점의 부분적인 요구사항들을 구조화된 요구사항 모델로 통합할 수 있다. 요구사항 모델의 구조는 문맥목표와 관심영역의 중복구조를 통하여 분석되며, 요구사항의 모델의 일관성은 요구사항 통합의 수단으로 요구사항 명세의 중복관계에 기반한 일관성 검사방법을 사용함으로써 획득된다. 제시된 방법을 사례분석에 적용한 결과 제안된 방안이 요구사항의 중복관계 및 불일치를 도출할 수 있을 뿐만 아니라 다중 사용자관점의 부분적인 요구사항들을 일관성을 갖는 통합된 요구사항 모델로 전환함으로써 소프트웨어의 행위와 기능을 명확하게 규명할 수 있음을 보여 주었다. 제안된 방안을 통하여 개발 초기단계의 유스케이스 모델링에 있어서 요구사항 불일치 도출능력을 강화할 수 있으며, 고객만족을 위해 사용자와 개발자간의 의사소통을 촉진할 수 있다.

• 산업공학
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• 제16권2호
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• pp.268-279
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• 2003

This paper presents critical steps in building client/server application with UML and Visual Basic, which are derived from the implementation case of a typical order processing system. To begin with, we briefly review the software architecture, the diagrams and the object-oriened building process in the UML. In the inception phase, it is critical to define the project charter, to draw use case diagrams, and to construct a preliminary architecture of the application. In the elaboration phase, it is critical to identify classes to be displayed in the class diagram, to develop user interface prototypes for each use case, to construct sequence diagram for each use case, and finally to design an implementation architecture. Steps to construct implementation architecture are given. In the construction phase, it is critical to design both the database and components. Steps to design these components are described in detail. Additionally the way to create the Internet interface is suggested.

• 한국수자원학회논문집
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• 제41권11호
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• pp.1079-1094
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• 2008

본 연구는 농촌소유역(1.21 $km^2$)에서 다양한 공간입력자료의 해상도가 SWAT(Soil and Water Assessment Tool) 모형의 수문-수질 모의결과에 미치는 영향을 분석하고자 Case A(2 m DEM, QucikBird 토지이용도, 1/25,000 토양도), Case B(10 m DEM, 1/25,000 토지이용도, 1/25,000 토양도), Case C(30 m DEM, Landsat 토지이용도, 1/25,000 토양도)에 해당하는 해상도별 공간입력자료를 구축하였다. 모형의 적용성 평가는 경안천유역(255.44 $km^2$) 출구점에서 일별 유출량 및 월별 수질자료를 이용하여 보정($1999{\sim}2000$)하였으며, $2001{\sim}2002$년 자료를 이용하여 검증하였다. 유출량에 대한 Nash-Sutcliffe 모형효율은 평균 0.59의 결과를 얻었으며, Sediment, T-N, T-P 부하량은 각각 2.08, 4.30, 0.70 tons/yr의 RMSE 오차로 검보정되었다. 농촌소유역을 대상으로 다양한 공간자료(Case A, B, C)를 적용하여 수문, 수질모의를 실시한 결과, 유출량은 토지이용도 해상도에 의한 모의결과의 불확실성이 가장 큰 것으로 분석되었다. QuickBird 토지이용도의 유역평균 CN값이 1/25,000과 Landsat 토지이용에 비해 0.4, 1.8 더 크게 분석됨으로서 총유출량도 증가하였다. 한편, 유사량과 영영물질 오염부하량에 대한 수질모의 결과는 QuickBird(Case A) 토지이용도의 유사량 및 T-N, T-P 부하량이 1/25,000(Case B) 토지이용도에 비해 23.7 %, 43.3 %, 48.4 %, Landsat(Case C) 토지이용도에 비해 50.6 %, 50.8 %, 56.9 % 높게 평가되는 것으로 분석되었다.

• 한국건축친환경설비학회 논문집
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• 제12권6호
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• pp.627-640
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• 2018

Submetering electricity consumption data enables more detail input of end use components, such as lighting, plug, HVAC, and occupancy in building energy modeling. However, such an modeling efforts and results are rarely tried and published in terms of the estimation accuracy of electricity demand. In this research, actual submetering data obtained from a university building is analyzed and provided for building energy modeling practice. As alternative modeling cases, conventional modeling method (Case-1), using reference schedule per building usage, and main metering data based modeling method (Case-2) are established. Detail efforts are added to derive prototypical schedules from the metered data by introducing variability index. The simulation results revealed that Case-1 showed the largest error as we can expect. And Case-2 showed comparative error relative to Case-3 in terms of total electricity estimation. But Case-2 showed about two times larger error in CV (RMSE) in lighting energy demand due to lack of End Use consumption information.

• 농촌지도와개발
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• 제13권2호
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• pp.341-355
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• 2006

The purpose of this study is to introduce the case of advancement of rural zoning system in a local government of Japan. The Matzgawa county, one of the local governments in Japan, sets up a new zoning system which advanced in using rural resources. In order to develop and revitalize rural region, it is necessary to use all kinds of rural resources, including agricultural as well as non-agricultural resources comprehensively. Also, the classification of agricultural land use should be reformed. The zoning on rural land should be changed to include not only agricultural use but also non-agricultural use, so as to manage comprehensively agricultural land use and its conversions. Furthermore, the land use regulation should be applied to each zone of the agricultural land.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제26권4호
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• pp.291-310
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• 2023

In this paper, we propose a theoretical framework for Chinese high school mathematics teachers use new textbooks based on the work of Remillard (1999) and Chau (2014). Based on this framework, a multiple case approach was used to investigate how two high school mathematics teachers from Shanghai use new textbooks. The results suggest that in the curriculum mapping arena, both the novice teacher and the expert teacher often planned to appropriate the unit content, and sometimes planned to add supplemental content. When organizing the unit content, novice teacher always planned to follow the new textbook in sequence, while expert teacher often would follow the new textbook in sequence, but sometimes planned to rearrange the unit content. In the design arena, both the novice teacher and the expert teacher tended to appropriate the introduced tasks and definitions. The novice teacher often planned to appropriate the example problems and exercise problems, while the expert teacher often intended to flexibly use the example problems and exercise problems. In the construction arena, the novice teacher seldom adjusted the planned tasks; in contrast, the expert teacher adjusted the planned tasks more frequently. In the reflection arena, the novice teacher often thought she should improve the mathematics tasks, while the expert teacher almost always thought he needed to improve the mathematics tasks. The framework shown in this paper provides a tool to investigate how mathematics teachers use textbooks.

• 산업경영시스템학회지
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• 제21권46호
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• pp.181-196
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• 1998

The aim of this research is the development of a CAPP system which can use the old experience of process planning to generate a process plan for a new part and learn from its own experience using the concept of stratified case-based reasoning(CBR). A process plan is determined through the hierarchical process planning procedure that is based on the hierarchical feature structure of a part. Each part and case have their own multiple abstractions that are determined by the feature structure of the part. Retrieving the case in stratified case-based process planning is accomplished by retrieving the abstraction that is most similar to the input part abstraction in each abstraction level of the case-base. A new process plan is made by the adaptation that translates the old case's process plan into the process plan of a new part. Operations, machines and tools, setups and operation sequence in each setup are determined in the adaptation of abstraction using some algorithms and the reasoning based on knowledge-base. By saving a new part and its process plan as a case, the system can use this new case in the future to generate a process plan of a similar part. That is, the system can learn its own experience of process planning. A new case is stored by adding the new abstractions that are required to save as the new abstraction to the existing abstractions in the case-base.

• Communications for Statistical Applications and Methods
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• 제7권3호
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• pp.677-686
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• 2000

Outliers may occur with respect to any of the random components in mixed linear models. We develop a use of simple, inexpensive updating formulas to consider the effect of case-deletion for mixed linear models. The method described here requires inversions of an n x n matrix, where n is the number of nonempty cells. A numerical example illustrates the use of computational formulas.

• Journal of Chest Surgery
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• 제27권5호
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• pp.422-426
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• 1994

Recently, we experienced one case of multiple ribs fracture with large chest wall defects. This patient was treated with internal fixation of ribs by use of Judet`s struts and reconstruction of chest wall defects by use of Teflon mesh. Postoperative outcome was satisfactory result and its advantages were reduced duration of operation, prevention of pulmonary herniation and reduced risk of postoperative infection.