• Title/Summary/Keyword: 해석적 방식

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Using Mixed Logit Model and Latent Class Model to Analyze Preference Heterogeneity in Choice Experiment Data (선택실험법 자료에서의 선호이질성 분석을 위한 혼합로짓모형 및 잠재계층모형의 활용)

  • Yoo, Byong Kook
    • Environmental and Resource Economics Review
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    • v.21 no.4
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    • pp.921-945
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    • 2012
  • Conditional Logit (CL) model is widely used since its model estimation and interpretation of results of the model is relatively easy, on the other hand, it has the limit of preference heterogeneity of respondents being not fully considered. In this study we used the two models, Mixed Logit (ML) Model and Latent Class Model (LCM) to explain preference heterogeneity of respondents for protection for Boryeong Dam wetland. As a result of the examination for heterogeneity in Boryeong city and six metropolitan areas, we found there was significant difference between two regions. While there was explicit preference heterogeneity within respondents in Boryeong city, we found little heterogeneity within respondents in six metropolitan areas. Thus in the case of six metropolitan areas, CL model can be used for parameter estimation while in the case of Boryeong city, WTP estimates are based on parameter estimates from ML model to reflect the heterogeneity within respondents. Additionally, ML model with interaction and 2-class LCM for respondents in Boryeong city were used to explain the sources of the heterogeneity. The ML model with interaction has advantage of explaining individual unobserved heterogeneity. However The comarison between these two models reflects the fact that LCM provided added information that was not conveyed in the ML model with interaction. Thus, Preference heterogeneity within respondents in this study may be better explained by class level through LCM rather than indiviual level through ML model.

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Product Image Concentration System as a Design Strategy to Build Corporate Brand Image (기업 브랜드 이미지 구축을 위한 디자인 전략으로서의 제품 이미지 집중 체계)

  • Kim, Hyun
    • Archives of design research
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    • v.16 no.2
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    • pp.375-384
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    • 2003
  • This study is on the strategy for establishing successful corporate brand image, by understanding the need for increasing brand value based on the level of brand recognition. In order to carry this out, the PICS (Product Image Concentration System) is suggested, which includes Brand Image Analysis on a high-level, Product Image Programming based on the result of the image analysis, and Product Image Coherency Assessment and Management, resulting in setting up a guideline for gaining competitive advantage and brand management. Brand Image Analysis is a method that utilizes image association to understand brand disposition by analyzing the association pattern among available visual materials to measure the corporate and brand image inclinations. As the next step, Product Image Programming establishes design philosophy and principles based on the analysis of brand image, and the Visual Programming is a process for visualizing the intended product image direction. Lastly, Product Image Coherency Assessment examines whether to incorporate design philosophy and principles or not to arrive at an agreed evaluation criteria for developing designs coherent with the brand image. The PICS (Product Image Concentration System) is a practical method for increasing a company' competitive advantage and managing brand. The expectation on this system is to provide a guideline for applying brand image in design process more objectively. For further study, diversification of image spectrum based on expressive keywords and comparative analysis on images as well as a product image interpretation program to understand the order of visual materials will be necessary.

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Understanding of Lee, Je-ma's View of Form and Interpretation of Form of Face (이제마(李濟馬)의 형상관(形象觀)이해와 안면부(顔面部) 형태의 해석)

  • Kim, Hyung-soon;Choi, Kwang-jin
    • Journal of Sasang Constitutional Medicine
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    • v.11 no.1
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    • pp.311-327
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    • 1999
  • Lee, Je-ma proposed ways like Chehyungkisang to judge each constitution, so, on the basis of this, we can judge constitution in various ways. Such a theory is based on behavior determinism's way of thinking of Lee, Je-ma. We can know this that form is not recognized as an object reflecting image, but a subjective concept from Tukyonyodun, Yimokbiku(ears, eyes, nose and mouth), Hameokjebok of Sungmyong Theory. Lee, Je-ma thought each part of human body has not only physical function but also complex temperative function. Putting this consideration and Jangbu Theory describing human body directly, together, it can be said that these all have an established theory on Chehyungkisang of constitution judgement. Thus, the following hypotheses are given. From Sadan Theory and Hwakchung Theory, strength of Jangbu of Sasangin is Pe>Bi>Shin>Kan in Taeyangin and Bi>Pe>Kan>Shin in Soyangin and Kan>Shin>Bi>Pe> in Taeumin and Shin>Kan>Pe>Bi in Soumin. The concept of Shinkihyuljung is related with creation of form and spirit of each Jangkuk and Aenoheerak(sorrow, anger, joy, pleasure). From this viewpoint, Sasangin can be classified into; Taeyangin into Shinkijunghyul type, Taeumin into Hyuljungkishin type, Soumin into Junghyuishinki type. Introduced a fixed way to explain of each constitution according to this strength relationship. I hope more lively discussions on Constitutional Medicine will be continued based on this attempt.

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A Study on the History of the Press during the Japanese Ooccupation Period and "Josun Shinmun Sosa" by Ahn Jae-Hong (일제강점기 언론사연구와 안재홍의 "조선신문소사(朝鮮新聞小史)")

  • Kim, Young-Hee
    • Korean journal of communication and information
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    • v.64
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    • pp.85-108
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    • 2013
  • This paper aims to review Ahn Jae-Hong's studies on the history of the Korean press from the perspective of research history focussing his "Josun Shinmun Sosa(A Short History of the Korean Press)" published in 1935. For this purpose major discussions with respect to journalistic history during the Japanese occupation period are reviewed. The result reveals that Ahn Jae-Hong's studies using a comparative method and a social historical approach are judged to be the most representative outcomes at that time. The "Josun Shinmun Sosa" first explains "Inhaeng Jobo" and "Jeobo" as an origin of newspaper, and then explains various subjects on newspaper phenomena in the latter era of the Chosun Dynasty such as participants of major newspapers, the tone of newspapers, the analysis of newspaper character through evaluation of main articles, the system of newspaper, newspaper advertisements, pro-Japanese newspapers, newspapers managed by Japanese, newspapers for overseas Korean, etc. But partly it gives a general description rather than a detailed research due to the nature of contributions to the newspaper, and also includes an objective analysis and a subjective impression together. Nevertheless his researches can be valued as pioneering pieces of work as they comprehensively handled various objects of study on newspapers and gave new angle and orientation of interpretation on the newspaper phenomena at that time. Also it is judged that they had an effect on the period division as well as the description methods for the study of the history of the Korean press.

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Estimation of Suspended Sediment Concentration in Small Stream with Acoustic Backscatter from Horizontal ADCP based on Real-Scale Field Experiment (실규모 현장 실험 기반 H-ADCP 초음파 산란도 활용 소하천용 하천 부유사 농도 측정 기법 개발)

  • Seo, Kanghyeon;Kim, Dongsu;Son, Geunsoo
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.36 no.6
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    • pp.1023-1035
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    • 2016
  • Suspended sediment concentration (SSC) is a crucial riverine parameter in terms that it can be utilized for analyzing sediment transport, stability assessment of river and structure and so on. However, in case of domestic, sediment discharge data are not enough because of using conventional sediment samplers. This study aimed at developing a practical technique for estimating suspended sediment concentration in high spatial and temporal resolution by building relationship between acoustic backscatter (or SNR) from H-ADCP with actually observed data using LISST-100X. In this regard, a dedicated correction algorithm was proposed particularly for the adapted H-ADCP (SonTek SL-3000). Then, a SNR-SSC relation was built based upon a real-scale field experiment, where both H-ADCP and LISST-100X were concurrently operated to observe SNR and SSC, respectively. The coefficient of determination for the developed regression equation of SNR-SSC relation was around 0.85~0.88, thereby the relation could be evaluated to be highly correlated. The result of this study might be potentially applied for real-time and simultaneous observation of SSC when H-ADCP could be applied.

Performance Evaluation of Underwater Acoustic Communication in Frequency Selective Shallow Water (주파수 선택적인 천해해역에서 수중음향통신 성능해석)

  • Park, Kyu-Chil;Park, Jihyun;Lee, Seung Wook;Jung, Jin Woo;Shin, Jungchae;Yoon, Jong Rak
    • The Journal of the Acoustical Society of Korea
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    • v.32 no.2
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    • pp.95-103
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    • 2013
  • An underwater acoustic (UWA) communication in shallow water is strongly affected by the water surface and the seabed acoustical properties. Every reflected signal to receiver experiences a time-variant scattering in sea surface roughness and a grazing-angle-dependent reflection loss in bottom. Consequently, the performance of UWA communication systems is degraded, and high-speed digital communication is disrupted. If there is a dominant signal path such as a direct path, the received signal is modeled statistically as Rice fading but if not, it is modeled as Rayleigh fading. However, it has been known to be very difficult to reproduce the statistical estimation by real experimental evaluation in the sea. To give an insight for this scattering and grazing-angle-dependent bottom reflection loss effect in UWA communication, authors conduct experiments to quantify these effects. The image is transmitted using binary frequency shift keying (BFSK) modulation. The quality of the received image is shown to be affected by water surface scattering and grazing-angle-dependent bottom reflection loss. The analysis is based on the transmitter to receiver range and the receiver depth dependent image quality and bit error rate (BER). The results show that the received image quality is highly dependent on the transmitter-receiver range and receiver depth which characterizes the channel coherence bandwidth.

Temporal Urban Growth Monitoring using Landsat Imagery and Pycnophypactic Interpolation Method - The case of Seoul Metropolitan Area - (Landsat 영상과 Pycnophylactic 보간 알고리즘에 의한 도시성장 분석 - 서울-경기 도시지역을 중심으로 -)

  • Chang, Hoon
    • Journal of Korean Society for Geospatial Information Science
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    • v.11 no.2 s.25
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    • pp.17-28
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    • 2003
  • Since 1970s, Seoul Metropolitan Area has been growing in physical and demographic aspect. A number of new urban fringes, New City, had been particularly developed from the early of 1990s. To examine the urban growth, the population density maps are generally used to the efficient urban management tool. The density maps from political boundaries, however, were traditionally used to estimate an urban concentration, there is problems to apply directly to urban management decision making due to (i) the abrupt changes between boundaries and (ii) the inclusion of green areas and forests in these areas. The mass-preserving interpolation method, the Pycnophylactic interpolation, could provide more realistic density maps. In addition, the classified urban areas from satellite images corresponding years would turn out to be more reliable results since populations were only applied to urbanized areas. Even though the Pyconophylactic method makes the density larger, it would be useful to produce a general urban growth trend at large scale. Consequently, four different density maps are compared and reviewed for this study, and the cross-sectional analysis provided to glimpse of population density around the city center.

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Study on Childcare Teachers' Changes of Disability Awareness and Childcare Experience through the Training for Disability Awareness (장애아 통합어린이집 일반교사의 장애인식 및 보육경험에 관한 연구)

  • Won, Young Mi;Jeon, Ji Hye
    • Korean Journal of Child Education & Care
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    • v.18 no.1
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    • pp.169-192
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    • 2018
  • This study aims to investigate the changes of their recognition and childcare practices before and after the training for disability awareness targeting class teachers in inclusive childcare setting. Subjects of this study were 9 teachers and the data was collected from 3 focus group (3 persons per group) and personal interviews in case of study needs. The results of this study are as follows: childcare teachers appealed ignorance and fear of children with disabilities before learning to improve their disability awareness, and have learned from the non-prejudiced attitudes of non-disabled children. The need for understanding and knowledge of children with disabilities was high, and they voluntarily and actively participated in the education for the improvement of disability awareness. Since participating in education, teachers have shown changes in perceptions of children with disabilities and changes in the way they practice childcare for disabled children. As regards cognition, teachers have become more interested in and understanding of children with disabilities and have tried to treat them equally with non-disabled children. Regarding the practice of childcare, they practiced the integrated program together with the non-disabled child and the disabled child through cooperative partnership. They also provided the disability awareness education to the non-disabled children and provided the partial integrated childcare program flexibly in one class according to the situation. The results of this study were analyzed and discussed about the general childcare teachers' experience related to the education for improving disability recognition and caring at childcare setting.

Seismic Performance-based Design using Computational Platform for Structural Design of Complex-shaped Tall Building (전산플랫폼을 이용한 비정형 초고층 건축물 성능기반 내진설계기술의 실무적용)

  • Lee, Dong-Hun;Cho, Chang-Hee;Youn, Wu-Seok;Kang, Dae-Eon;Kim, Taejin;Kim, Jong-Ho
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.26 no.1
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    • pp.59-67
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    • 2013
  • Complex-shaped tall building causes many structural challenges due to its structural characteristics regarding inclined members and complexed shape. This paper is aimed at development of design process using computational-platform which is effective design tool for responding frequent design changes, particularly as to overseas projects. StrAuto, a parametric structural modeling and optimizing system, provides the optimized alternatives according to design intent and realize a swift process converting a series of structural information necessary to nonlinear analytical models. The application of the process was to a 45-story hotel building in Ulanbator, Mongolia adopting shear wall and special moment frame with outrigger systems. To investigate the safety of lateral force resisting system against maximum considered earthquake(MCE), nonlinear response history analysis was conducted using StrAuto.

De l'image dans la philosophie cinémathographique chez G. Deleuze (들뢰즈 영화철학에서의 이미지론)

  • Jin, Gi-haeng
    • Journal of Korean Philosophical Society
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    • v.117
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    • pp.355-372
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    • 2011
  • G. Deleuze a $exerc{\acute{e}}$ sa philosophie $cin{\acute{e}}mathographique$ dans ses œuvres essentielles $Cin{\acute{e}}ma$ 1: l'Image-Mouvement(Minuit:1983) et $Cin{\acute{e}}ma$ 2: l'Image-Temps(Minuit:1985) qui n'indiquent pas l'histoire $cin{\acute{e}}mathographique$ mais la taxinomie, et par $cons{\acute{e}}quent$, de l'image et du code. Cette ${\acute{e}}tude$ consiste donc $\grave{a}$ rendre compte la de l'image que G. Deleuze touche dans cette $d{\acute{e}}finition$ et $\grave{a}$ $v{\acute{e}}rifier$ quelles images peuvent ${\hat{e}}tre$ $cat{\acute{e}}goris{\acute{e}}es$: comment. Nous distinguons l'image-mouvement et l'image-temps qui sont les $cat{\acute{e}}gories$ essentielles chez $Cin{\acute{e}}ma$. C'est surtout sur ce point que nous insistons. Dans ce cas, nous discutons aussi de la question des spectateurs du film qui conduit. Cette question permet susciter de la $mani{\grave{e}}re$ $d^{\prime}{\hat{e}}tre$ des spectateurs entre le film qui est $compos{\acute{e}}$ de l'image-mouvement dont G. Deleuze decrit comme 'classique' et le film qui est $trait{\acute{e}}$ de l'lmage-temps dont il $d{\acute{e}}finit$ comme 'moderne': quelle variation. Dans ce point $d^{\prime}{\acute{e}}tude$, G. Deuleuze ecrit cette question $mentionn{\acute{e}}e$ $\grave{a}$ travers son oeuvre $Cin{\acute{e}}ma$($\grave{a}$ voir ch.7, Volume2).