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Vulnerability Analysis of Water Resources Considering Climate Change (기후변화를 고려한 수자원 분야의 취약성 분석)

  • Kim, Da-Eun;Jung, Yong;Park, Moo-Jong;Yoon, Jae-Young;Kim, Sang-Dan;Choi, Min-Ha
    • Journal of Wetlands Research
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    • v.13 no.1
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    • pp.25-33
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    • 2011
  • Climate change is the variation of long term weather pattern based on statistical diversities in terms of natural and artificial factors. Recent numerous extreme weather phenomena have increasingly obtained people's awareness of climate change. Since water resources field especially has higher vulnerability caused by climate variation, the major part of future preparation should be focused on risk minimization of water resources. However, in reality validation of water resources vulnerability is not well built up. For this research, Delphi Method was applied to evaluate middle/small size rivers in Korea with respect to the degree of vulnerability due to the climate change. Delphi Survey is based on iterative, anonymous characteristics with experts' opinion sharing on the given issues. For this study, three iterative surveys were operated for the degree of vulnerability. First round was for selecting vulnerability indicators in terms of the magnitude of total score, and second and third rounds were for collecting experts' idea with opinion convergence. Per the variance of standard deviation of 2nd and 3rd surveys divergence, we clearly see the achievement of opinion agreement. For the future study, we may need to find an applicable field using delphi indicators with various circumstances.

A Study on Optimal Inspection Interval for the Major Components of Construction Lift (건설용 리프트의 운행정보 및 고장데이터 분석을 통한 주요 부품별 점검주기 산출 연구)

  • Soh, Jiyune;Bae, Jaehoon;Han, Choonghee;Lee, Junbok
    • Korean Journal of Construction Engineering and Management
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    • v.16 no.3
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    • pp.68-77
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    • 2015
  • One of recent concerns for super-tall buildings is how to manage hoisting plans and equipment efficiently. Disasters are frequently occurred in relation to electromotive hoists and cranes which are commonly used in construction sites. For construction lifts, particularly, it is highly important to conduct regular inspections or prepare against breakdown in terms of safety. However, unfortunately the reality is that regular inspections are only flatly conducted according to operating hours only. A lift, whose life span is subject to the complicated considerations such as operating hours, loading condition, and the like of each component, is far too invalid as a means of maintenance. As a way to resolve this problem and improve its convenience and safety for users, this study intends to calculate individual inspection interval for the main components of lifts by measuring their actual operating hours with sensing technology and analyzing their historical data. The findings of study include calculation of inspection intervals for the main components of lifts and classification of components to check by the actual operating hours of lift (40, 90, 130, 400 hours), which are drawn up into tables. This will make an opportunity to suggest efficient maintenance measures by enabling prevention of safety accidents and enhancement of safety for workers. Also, it will lead to increasing productivity of works by eliminating sources of delaying the term due to the breakdown of lifts.

Towards Intercultural Christian Education: A Christian Educational Response to Multicultural Phenomenon in the South Korean Context (상호문화적 기독교교육: 한국의 다문화현상에 대한 기독교교육적 응답)

  • Choi, Heejin
    • Journal of Christian Education in Korea
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    • v.61
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    • pp.263-294
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    • 2020
  • In South Korea which has become a multicultural society, ethnic and cultural others have suffered from discrimination against them and isolation from society. Multicultural policies and multicultural public education have simply focused on the assimilation of cultural others without providing opportunities to build a reciprocal relationship between Kor eans and cultural others. Noting this reality, this paper proposes intercultural Christian education as a prophetic and educational role of faith communities in society. Intercultural education, intercultural theology, Miroslav Volf's drama of embrace, and Sang-Jin Park's theory of the ecosystem of Christian education offer theoretical foundations for intercultural Christian education. Based on these foundations, the paper discusses the definition and goal of intercultural Christian education and argues for the roles of intercultural Christian education to help Christ ians "SEE" the self, the other, and the community through self-reflection, embrace, and ecological transformation. As intercultural Christian education pursues to nurture Christians to have a respectful and hospitable mindset toward cultural others, such education will help faith communities seek a multi-colored kingdom of God.

A Study on the Development and Measurement of Logistics Partners Cooperation Index(LPCI): Focused on the Joint Logistics (물류협력지수의 개발 및 측정에 관한 연구: 공동물류사업을 중심으로)

  • Suh, Sang-Sok;Song, Gwang-Suk;Park, Jong-Woo
    • Journal of Distribution Science
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    • v.14 no.6
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    • pp.107-118
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    • 2016
  • Purpose - Over 90% of Domestic logistics industry is small enterprise and they are experiencing growth stagnation due to price-based competition structure rather than constructing logistics service of high added value. In order to get over this situation and pursue the development of logistics industry, strengthening its competitiveness, through inter-enterprise cooperative network build-up, would be a key alternative. Therefore, in this study, an index for measuring inter-enterprise cooperation level of Joint logistics business will be developed as a typical collaborative business model in logistics industry. Moreover, a strengthening competitiveness method suggests a developmental step and a key management index to mature in logistics industry. Research Design, Data, Methodology - This study is an index development research for measuring inter-enterprise cooperation level of logistics industry. Such a level was measured by performing a survey by targeting enterprises that participated in Joint logistics business. The targeting enterprises are typical cooperative models in logistics industry. Measurement items were developed which were based on the presented items in existing research. Question items were composed of selection type questions as answering Yes/No. They measures implementation status of corporate activity and detailed activity items measuring qualitative level. Total samples were based on 116 enterprise samples including 90 logistics enterprises and 26 shippers. In addition, by evaluating the importance for Joint logistics business recognition with personnel working level, the weight of measuring variable was extracted. This study has built an assessment tools (LPCI) on Joint logistics business cooperation level in a situation where there are no previous studies on joint logistics business, this study is meaningful for other studies. Results - As a result of analyzing LPCI presented in this study, the score of logistics enterprise was represented as 59.9 points based on full score of 100 points and that of shippers as 47.2 points and cooperation level among enterprises participated in Joint logistics business was revealed to be very low. In particular, as a result of measuring the importance between logistics enterprise and shippers, the difference by each measurement standard was represented among those enterprises. This difference is considered to be a key factor that cooperative operational conformity between logistics enterprises and shippers is represented to be low. Conclusions - As most joint logistics business, being promoted at present, is sharing facility and information with joint logistics business, it is hard to find such a joint logistics business in reality based on cooperative business model in main cooperation agents. Therefore, competitiveness of logistics industry could be strengthened by promoting joint logistics business based on their mutual cooperation among enterprises. In other words, it is to secure sustainable competitiveness of joint logistics business together with creation of new market by inter-enterprise cooperation based on integration of basic logistics business.

A Study on the Design of Visual-Auditory Haptic Interface - With emphasis on embodying Haptics using Visual and Auditory perception (시/청각적 촉감 인터페이스 디자인에 관한 연구 - 시각과 청각을 이용한 촉감 구현을 중심으로)

  • 백승화;김명석
    • Archives of design research
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    • v.14 no.2
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    • pp.15-25
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    • 2001
  • With the rapid development of current internet, digital age make human beings intangible. Haptic sense was recognized less important than visual sense and auditory sense, but it plays an important role in determining the quality of products. The goals of this study are embodying haptics using Visual and Auditory preception and designing Visual-Auditory Haptic interface, in the case of actual touching is required but impossible. This study was carried out 3 steps. Firstly, developing the concept of Visual-Auditory Haptic Interface(VAHI) was carried out to make it certain the direction of this study. To get common factors of VAHI, this study researched physical-mechanism of visual, auditory, and haptics senses, and psychological-mechanism. Secondly, identifying factors of V/A haptic sense was analysed by web-evaluation test, to be categorized 11 Emotional Haptic Factors(EHF) and some Design Haptic Factors(DHF). The relation of EHF and DHF was analysed and summarized to VAHI design check sheet. Finally, Applying DHF to VAHI by EHF according to VAHI design check sheet was validated by web-evaluation test, to be resulted 13% increase in reliability and the same in usability. Conclusively, the possibility of embodying haptics using Visual and Auditory preception was resulted to be valid. And this concept can be applied to an interface, such a internet shopping mall and virtual reality, which requires actual touching to perceive haptic information, but it is impossible.

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The effect of restaurant in-store color and music congruency on customer's emotional responses and behavioral intentions (레스토랑 실내의 색채와 배경 음악의 조화가 고객의 감정적 반응 및 행동 의도에 미치는 영향)

  • Jo, Mi-Na
    • Science of Emotion and Sensibility
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    • v.14 no.1
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    • pp.27-38
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    • 2011
  • This study was aimed to investigate the effects of restaurant in-store color and music congruency on consumer's emotional responses and behavioral intentions. The web survey was conducted among 400 customers(aged from 20~39 years old) who lived in Seoul and Kyunggi, Incheon Province. To find ensemble effect of color and music, 3D studio MAX were used to make high-stimulus(exciting) and low-stimulus(calm) and 3D virtual reality restaurant simulation stimulus were applied. The statistical data analyses were performed using SPSS/WIN 18.0 and reliability analysis, factor analysis, regression analysis were used. Based on the result of the conducting factor analysis, emotional responses were classified into 2 factors: positive emotion and negative emotion. Satisfaction was classified into 1 factor: satisfaction. Loyalty was classified into 1 factor: loyalty. Cronbach's alpha was calculated for the reliability of the survey instrument. Consequently, restaurant in-store color and music congruency were shown to affect positive emotion and negative emotion. Positive emotion and negative emotion were shown to affect satisfaction. Satisfaction were shown to affect loyalty. Music congruency had a higher effect on positive emotion than color congruency. Color congruency had a higher effect on negative emotion than music congruency. The results of this study will serve as a basis of color and music congruency with restaurant atmospherics.

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Numerical Interpolation on the Simulation of Air Flow Field and the Effect of Data Quality Control in Complex Terrain (객관 분석에 의한 복잡지형의 대기유동장 수치모의와 모델에 의한 자료질 조절효과)

  • Lee Hwa woon;Choi Hyun-Jung;Lee Kang-Yoel
    • Journal of Korean Society for Atmospheric Environment
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    • v.21 no.1
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    • pp.97-105
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    • 2005
  • In order to reduce the uncertainties and improve the air flow field, objective analysis using asynoptic observational data is chosen as a method that enhances the reality of meteorology. In surficial data and their numerical interpolation for improving the interpretation of meteorological components, objective analysis scheme should perform a smooth interpolation, detect and remove the bad data and carry out internal consistency analysis. For objective analysis technique which related to data reliability and error suppression, we carried out two quality control methods. In site quality control, asynoptic observational data at urban area revealed low representation by the complex terrain and buildings. In case of wind field, it was more effective than temperature field when it were interpolated near waterbody data. Many roads, buildings, subways, vehicles are bring about artificial heat which left out of consideration on the simulation of air flow field. Therefore, in temperature field, objective analysis for more effective result was obtained when surficial data were interpolated as many as possible using value quality control rather than the selection of representative site.

A Study on 4D GIS Technology Trends and Development Strategies (4D GIS 기술동향 및 개발전략 연구)

  • 최환석;김은형;조대수
    • Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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    • 2004.03a
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    • pp.173-187
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    • 2004
  • The horizon of using GIS technologies can be expanded to analyzing spatial changes by time in reality. Traditional GIS technologies usually use maps for a snapshot aspect of spatial information. Limitations of the present GIS technologies in terms of dealing with spatial changes require more solutions for collecting, processing and analyzing spatial data with time. Traditional GIS technologies include Temporal GIS, Real-time GIS and Virtual GIS respectively but those are not capable enough to represent spatial change in an overall perspective. By reflecting dynamic changes the current GIS technologies can be more useful and valuable than before. This study assumes that '4D GIS', a composite of temporal, realtime and virtual GIS technology, will open a new horizon for the future sophisticated GIS applications. By identifying a technology application model for 4D GIS the new concept of 4D GIS can be clarified. The model is established by combining dynamic spatial information types and applicable 4D GIS technologies, which are identified from the most current 4D application and research efforts. The technology application model for 4D GIS can be expected to contribute to efficient in planning for 4D GIS technology development in the future.he future.

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A Mechanism how Obesity to Attain A Status of Disease (비만의 질병지위 획득 메커니즘)

  • Park, Hye Kyung
    • Journal of Science and Technology Studies
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    • v.14 no.2
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    • pp.165-198
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    • 2014
  • This study investigated a mechanism of naming a disease, as examining how obesity attain a status of disease. WHO(World Health Organization) warned 'The obesity is definitely a disease to need medical treatment' in 1996 and 1997. However, before then, obesity was classified as unusual or nonstandard body status but it was not categorized as a disease. In order to examine a mechanism how obesity attain the status of disease, this study examined the historical process of construction to obesity in discourse of disease and ontological reality of pathological epidemiological to obesity. As a result of this research, it was found that the medical community manipulated BMI(Body Mass Index) and deliberately narrowed the range of person's normal weight, and institutionalized sizism. Especially, it was found that as the medical community associated the body state of obesity with high blood pressure, diabetes, and etc that causes burden of medical expenses to patients, that was fatphobia. And it tried to from a medical control mechanism to assign obesity to an independent status of a disease. Based on this examination, this study found an entailment: the noninfectious disease such as obesity attains the status of disease not because of the pathologic reason but because of cultural or socio-economical reason which han nothing to do with any medical source.

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GPU-only Terrain Rendering for Walk-through (Walk-through를 지원하는 GPU 기반 지형렌더링)

  • Park, Sun-Yong;Oh, Kyoung-Su;Cho, Sung-Hyun
    • Journal of Korea Game Society
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    • v.7 no.4
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    • pp.71-80
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    • 2007
  • In this paper, we introduce an efficient GPU-based real-time rendering technique applicable to every kind of game. Our method, without an extra geometry, can represent terrain just with a height map. It makes it possible to freely go around in the air or on the surface, so we can directly apply it to any computer games as well as a virtual reality. Since our method is not based on any geometrical structure, it doesn't need special LOD policy and the precision of geometrical representation and visual quality absolutely depend on the resolution of height map and color map. Moreover, GPU-only technique allows the general CPU to be dedicated to more general work, and as a result, enhances the overall performance of the computer. To date, there have been many researches related to the terrain representation, but most of them rely on CPU or confmed its applications to flight simulation, Improving existing displacement mapping techniques and applying it to our terrain rendering, we completely ruled out the problems, such as cracking, poping etc, which cause in polygon-based techniques, The most important contributions are to efficiently deal with arbitrary LOS(Line Of Sight) and dramatically improve visual quality during walk-through by reconstructing a height field with curved patches. We suggest a simple and useful method for calculating ray-patch intersections. We implemented all these on GPU 100%, and got tens to hundreds of framerates with height maps a variety of resolutions$(256{\times}256\;to\;4096{\times}4096)$.

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