• 한국실내디자인학회논문집
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• 제19권4호
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• pp.22-30
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• 2010

Light has primary function to enlighten the darkness. However, as development and progresses in media has caused big change in our life, the range of usage and application of light is broadened. And these days, light is actively used as a communication tool in a space. This thesis is based on an idea that a new prospect of light is required and at the same time the theoretical foundation should be established to take active advantage of light. In Chapter two, analysis criteria are established to verify study hypothesis. The applied methodology is to analysis the contents based on literature review. Key words related light in space design are extracted and the frequency of those key words are quantitatively measured. Taking advantage of the result, the characteristics of light are divided into three categories, 'light as symbolic information', 'light as communication medium' and 'light as topological form'. In chapter three, analysis of cases is performed. The cases are selected based on space analyzing criteria established in Chapter two. Qualitative analysis is performed on the cases categorized into natural light and artificial light. Basic analysis elements are evaluated for each case. And each case is allocated to one of three categories, 'light as symbolic information', 'light as communication medium' and 'light as topological form'. Through this analysis, it is found that light in space has prevailing characteristics of 'light as symbolic information' and 'light as communication medium'.

• 한국보건간호학회지
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• 제10권2호
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• pp.119-134
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• 1996

A case study on the relationship between an exercise program and the exercise cognition of the aged persons at a community center for the elderly in Seoul was carried out to get some basic data for a better exercise program. The frequencies and time of exercise and the exercise cognition before and after the exercise program were compared. The program included exercise training and education 2 or 3 times a week for three months with 6 different kinds of exercise machines. 32 persons were interviewed. and the results. which were analyzed using SPSS package program. showed frequencies. percentages and Wilcoxon rank sum test. The following conclusions were obtained: 1. After the exercise program. the exercise frequency and time were increased. and the leisure life was changed positively. 2. $96.9\%$ of the interviewees understood well the necessity of the exercise, and the most reasonable reason why they do exercise was to keep their physical strength and health. And more persons of the group who do exercise everyday than those of the group who do not exercise everyday. felt that they are healthy. 3. It was responded that the most important factor to promote the exercise activity of aged persons was to provide exercise facilities and rooms. and exercise trainers. Accordingly. the exercise facilities and rooms. and exercise trainers should be provided, and various exercise programs should be developed. for the regular exercise of aged persons in their lives. Therefore. qualitative life and well-being of aged persons should be improved.

• 한국조경학회지
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• 제19권3호
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• pp.98-127
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• 1991

This study has purposes of not only establishing urban community park systems and index for designing the parks, which were reviewed from Korean urban community parks, but also finding the relation and the enticing area according to the catchment of urban community parks. This paper suggested two hypotheses. a. The strength of the catchment force of urban community parks can be represented to the usetimes or visitors of the parks, related with the distance for reaching the parks. b. The strength of the catchment force of the parks can be found to express the idiosyncratic one according to the qualitative differences between the parks. The suggested hypotheses were testified from Korean 9 urban community parks in Seoul., Suwon, Chongju, and Chonan, conforming the multiregressions of the variables, distance and usetime in the case of the first hypothesis, scale, the ratio of green space, population, the budget for the park, facilities and the function of the city in the case of the second hypothesis. All the correlation coefficients of usetime with distance except one were over about 0.8. The second hypothesis was testified with multiregressions for the variables. Therefore, the enticing area could be divided into three zones ; a closed aone to parks, a good used aone for parks, a possible zone for using parks.

• Journal of Ecology and Environment
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• 제33권4호
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• pp.275-288
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• 2010

Ecological modeling faces some unique problems in dealing with complex environment-organism relationships, making it one of the toughest domains that might be encountered by a modeler. Newer technologies and ecosystem modeling paradigms have recently been proposed, all as part of a broader effort to reduce the uncertainty in models arising from qualitative and quantitative imperfections in the ecological data. In this paper, evolutionary computation modeling approaches are introduced and proposed as useful modeling tools for ecosystems. The results of our case study support the applicability of an algal predictive model constructed via genetic programming. In conclusion, we propose that evolutionary computation may constitute a powerful tool for the modeling of highly complex objects, such as river ecosystems.

• Architectural research
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• 제14권4호
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• pp.117-124
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• 2012

High rise office buildings represent one of the most energy-intensive architectural typologies. The growth of urban population necessitates sustainable high rise towers that lessen environmental impacts and energy consumption. Among various sustainable strategies, the integrated design is long known to be an important process that has great impact on building's sustainability. The framework for this paper is based on the case study of integrated towers that are located in different climate zones. The paper specifically addresses to what extent climate conditions influence the design of a high rise building and what kinds of the climate integrated design has been implemented. Qualitative case studies were carried out using published data and architectural drawing set. The technical work presented in the paper is based on computer simulation that examines the insolation analysis using hourly recorded weather data. The analysis results revealed that the site and building envelope integration and the site and building service systems have shown the most frequently employed in the integrated towers through the implementation of renewable resource integration, high performance envelopes and sustainable building service systems. Internal comfort and further energy saving in the integrated towers are offered through an automatic building management system. Due to the dynamic climate conditions, integration of building systems requires a sophisticated approach to building sustainability.

• 한국초등과학교육학회지:초등과학교육
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• 제30권2호
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• pp.162-177
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• 2011

The purpose of this qualitative case study was to investigate the 'structure' of an elementary school teacher's practical knowledge concerning science experiment lessons. A female elementary teacher in the early career years participated in the study, and video recordings of her science experiment lessons as well as audio-taped interviews with her were analyzed by means of Elbaz's framework. The teacher expressed six images of science experiment lessons: 'Science is difficult', 'Experiments are dangerous', 'Experiments are accurate', 'A science experiment takes a long time', 'Science experiments are interesting', and 'Children are little scientists.' These images were supported by several principles and rules, most of which were clearly described. Among the images, principles, and rules, there were complex relationships with some working in synergy and some conflicting. In case of the image 'Children are little scientists', its subordinate principles and rules were not fully realized in the classroom. Implications for science teaching reform and science education research were discussed.

• 한국학교수학회논문집
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• 제17권4호
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• pp.657-677
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• 2014

본 연구의 목적은 실험수업에 참여한 세 명의 중학교 1학년 학생들의 모델 정교화 과정을 질적 사례연구를 통하여 살펴보고 모델 정교화에 영향을 미치는 요인을 분석하여 이에 관한 정보를 제공하고자 함이다. 분석 결과 학생들의 수학적 모델링의 정교화 과정은 각 단계가 단선적으로 일어나는 것이 아니라 모델 내에서 해를 구할 수 없거나 구한 해가 의미가 없는 경우 실제 문제 구성 단계로 돌아가 실제 문제를 수정하거나 수학적 모델 구성 단계로 돌아가 모델을 수정 또는 정교화하는 것을 알 수 있었으며, 모델 정교화 과정에 영향을 미치는 요인으로는 모델링 문제, 메타인지적 사고, 교사 동료와의 의사소통 및 교사의 역할 등이 복합적으로 작용함이 나타났다.

• 한국IT서비스학회지
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• 제7권3호
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• pp.159-174
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• 2008

The purpose of this study was to introduce a case that used web2.0 techniques to overcome the limitations of current DACUM method. For the purpose, firstly, we summarized the characteristics and limitations of current DACUM as a method to develop an occupational curriculum. The summary indicated that the results of DACUM process are likely to be influenced by the selection procedure of out-performers. In addition, current DACUM method is difficult to be adapted to big organizations, difficult to reflect rapidly changing society, and lack of qualitative review for the findings. To overcome these limitations, Seoul city designed a transformed DACUM method based on web2.0 techniques. The most outstanding features of the transformed DACUM method were web-based peer review systems to validate the findings of DACUM workshop. We concluded that the transformed DACUM method was proper to big size organizations faced with rapid changes and some organizations with special needs to establish their training systems based on the results of job analysis. Finally, we discussed several practical tips for the Seoul city's method.

• 한국CDE학회논문집
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• 제18권3호
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• pp.177-188
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• 2013

The construction industry consists of various and massive architectural information as an architectural process includes a variety of design stages with cooperation of many disciplines. Particularly, architectural information is generated and managed through the life cycle of a building, from conceptual design stage to the construction and maintenance. A Building Information Model (BIM) serves as a shared knowledge resource for information about a facility forming a reliable basis for decisions during its life-cycle from inception onward. BIM technology accomplished quantitative development being utilized in various disciplines. However, it is necessary to develop environment and requirement for qualitative improvement of BIM based project. Particularly, requirement is very important for architectural design evaluations. The purpose of this study is to develop and apply of quality control check-list for improving the quality of architectural design in BIM environments. To achieve this purpose, the authors have investigated case study for open BIM data quality control (software, guideline and application case) and classified quality control targets according to physical/logical quality control and data quality. In addition, the authors have defined open BIM based quality control process and developed quality control check-list. Finally, the authors have developed automatic quality check system using requirements for efficient quality control based on open BIM.

• The Journal of Asian Finance, Economics and Business
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• 제8권4호
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• pp.517-527
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• 2021

While the two principles of lean manufacturing and time-driven activity-based costing (TDABC) have been established out of multiple incentives and do not follow the same particular targets, there is substantial commonality between them. In these conditions, the supply management of a multi-product system needs a rigorous production model to minimize costs. In this sense, this paper proposes an interactive model with the consideration of optimizing product-mix decisions using both lean development tools and TDABC. This paper proposes a qualitative approach using the case study of the Iraqi state company for battery production. The suggested model decreased manufacturing time and costs, along with some substantial reduction in idle production capacity by 26 percent in 2019, based on the findings of the case study. On the other hand, the proposed model gives two side advantages: an efficient division of costs on goods due to the use of time spent as a cost factor for products and cost savings due to the introduction of the lean manufacturing approach that reduces all additional costs and increases product-mix decisions. Furthermore, the analytical data gathered here suggests that the incorporation of lean management concepts and TDABC has a strong and important influence on product-mix decisions.