• The Journal of the Korea Contents Association
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• v.14 no.6
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• pp.367-384
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• 2014

This study addresses an empirical issue which has been received little attention in the contemporary finance literature: To identify any financial determinants of the profitability indices for the firms belonging to the Korean chaebol. Three hypotheses of concern were postulated and tested for the sample firms covering the periods of the pre-and post-financial global crises. Regarding the results on the 1st hypothesis test of characterizing any financial profiles for the firms (belonging to the chaebols) by estimating a legitimate panel data model: the present study found the statistically significant relationships of the explanatory variables (BVLEVl, MVLEVl, MV/BV, RISK, FCFF and FOS) with the book-value based profitability ratio: while the market-valued profitability index was explained only by BVLEV2. Regarding the 2nd hypothesis test for the profitability of the sample firms at the industry level: the chaebol firms in the chemical and the food industries overall positioned themselves into the top ranks in order, which was tested by the ANCOVA and the Tukey multiple comparison procedure. Finally: on the 3rd hypothesis test for the 'adjusted' Dupont system, only two such as the 'operating margin' and the 'asset turnover' showed their significant effects between the chaebol firms and their counterparts in both the (parametric) independent samples t-test and the (nonparametric) Wilcoxon-Mann-Whitney statistics.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.5
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• pp.1026-1033
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• 2009

In this study, we computed the unit load of nonpoint source for the forest, agricultural, and urban representative region in Anseongchun watershed. In addition, Flow-weighted mean concentration (FWMC) that well represents runoff characteristics of storm water during rainfall, was calculated, and runoff pollutants loading was also examined. FWMCs of 1st rainfall, which runoff coefficient was high, had a tendency higher than those of 2nd rainfall. Based on landuse results, pollutant concentration of the non-urban such as forest and agricultural regions was higher than that of urban region. In case of BOD, runoff pollutants loading was calculated as 1,395, 1,623, 2,268kg/d in 1st rainfall for forest, agricultural, and urban regions, respectively, while runoff loading of 2nd rainfall was 503kg/d in forest), 512kg/d in agricultural, and 898kg/d in urban. By landuses, unit load of the urban as 72.7kg/ha/yr was 12 times higher than that of the agricultural as 6.5kg/ha/yr, and 8 times higher than that of the forest as 9.5kg/ha/yr.

• Proceedings of the Korean Society for Cognitive Science Conference
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• 2006.06a
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• pp.29-32
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• 2006

이 연구에서는 표적과 방해자극을 분리시킬 때 관찰되는 간섭 감소가 반구내 및 반구간 조건에서 달리 나타난다는 것을 보여주기 위해 세 개의 실험을 실시하였다. 세 실험의 과제는 모두 색깔이 있는 원과 사각형이 주어지고 항상 검은색으로 제시되는 색 이름 단어가 주어진 상황에서 원의 색은 무시하고 사각형의 색과 단어가 의미하는 색이 같은지, 다른지를 판단하는 것이었다. 사각형의 색이 단어가 의미하는 색과 일치할 때 방해자극인 원의 색도 단어가 의미하는 색과 일치하는지 여부에 따라 방해자극의 세 조건(일치, 불일치, 중립)이 만들어졌다. 또한, 방해자극인 원이 표적 가운데 하나인 단어와 같은 시각장에 제시되는지, 혹은 반대편 시각장에 따로 제시되는지에 따라 반구 간섭조건(반구내 간섭, 반구간 간섭)이 만들어졌다 간섭효과는 불일치 조건과 중립 조건간의 차이로 측정하였다. 실험 1의 결과는 정확률과 반응시간 모두에서 반구내 간섭이 반구간 간섭보다 유의미하게 더 큰 것으로 나타났다. 실험 2에서는 방해자극인 원을 선제시하였는데 그 결과 반구내 간섭이 특히 크게 감소하여 반구내 간섭과 반구간 간섭이 차이를 보이지 않게 되었다. 그러나 표적자극인 사각형을 선제시한 실험 3에서는 반구내 간섭이 여전히 반구간 간섭보다 유의미하게 큰 것으로 나타났다. 세 실험의 결과를 종합하면 방해자극의 간섭 효과는 방해자극을 표적과 다른 반구로 분리 제시하거나, 선제시 같은 방법으로 방해자극을 표적과 분리시킬 때 유의미하게 감소하였다. 그러나 애초부터 방해자극을 표적과 다른 반구로 분리 제시하였던 반구간 간섭조건에서는 방해자극의 선제시가 간섭 감소를 가져오지 않았다. 지질의 산패를 가속화시킨 결과라고 생각된다. 따라서 호박 라면 제조시 이러한 공기와의 접촉을 차단시킬 수 있는 포장재료를 선택해야 될 것으로 사료된다.0.05), 맛, 연도, 다즙성 및 전체적인 기호성은 유의한 차이가 없었다.자체를 악하다고 볼 수 없고 더구나 구원을 이 세상에서의 이탈로 볼 수 없다. 진정한 구원이란 원래 하나님이 보시기에 아름다웠던 그 세상으로의 회복을 포함한다. 이런 면에서 하나님 주권 신앙 하에서 구원이란 전 인격적인 구원, 전 우주적인 구원이 된다. 그렇기 때문에 성도는 세상의 삶과 학문, 예술, 정치, 경제, 사회를 포함한 모든 분야를 하나님의 뜻 가운데서 그 원래의 목적에 부합할 수 있도록 회복시키는 일에 적극 참여해야 한다.자체가 이를 주도하기는 사실 어려움이 있다. 그리고 대형유통점이 영업행위를 영업시간제한에서부터 출점제한에 이르기까지 규제하는 건은 심사숙고하여야 한다. 대형유통점이 국가경제 및 지역사회에 미치는 영향이 부정적인가 긍정적인가에 대해 국내외 학계와 업계에서 여전히 많은 논란이 있기 때문이다. 정부와 지자체에 의한 시장개입은 반드시 필요한 경우에 한해 합당한 방법에 의해 이루어져야 한다. 대형유통점에 대한 규제는 지역사회에 미치는 영향을 다면적으로 평가한 결과에 근거하여 이루어져야 할 것이다. 대부분의 지자체는 체계적인 평가시스템과 객관적인 통계 자료를 갖고 있지 못한 실정이다. 향후 가장 시급한 과제는 시장개방 이후 지난 10년간 대형유통점이 지역사회에 미친 영향에 관한 광범위한 통계자료를 수집하고 이를 체계적으로 분석하여 정책방향을 올바르게 설정하는 것이라 할 수 있다.i와 K. pneumonia

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.33 no.1
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• pp.119-128
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• 2015

The purpose of this study was to look at the Jungeun-sasang(中隱思想) and garden of Bai Juyi in the perspective of landscape architecture and inquiry the meaning of Bai Juyi's construction activities, thought shown in his gardens, and how his construction method influenced later and the result is as follows. First, the 'Jungeun-sasang(中隱思想)' of Bai Juyi improved the Eunil-sasang(隱逸思想) and the birth of 'Jungeun-sasang(中隱思想)' became a clue to be developed up to the garden art. In addition, different from before that built gardens hiding in mountains, it prepared the turning point to build gardens in cities. Second, the space principle of 'paradise' shown in the garden of Bai Juyi was a means and principle to absorb the nature such as positioning rocks, formation of mounds, and positioning of flowers in the limited and small spaces different from previous gardens of splendid and magnificent. The garden became not only outer scene but also the 'Simwon(心園) that reflected the inside world. 12) Third, the gardening act and thought appeared in the poem of Bai Juyi were expressed in pictures and his own gardens as his poem was borrowed and quoted. As a result, Bai Juyi's literary view on the art and thought prepared the base in the popularity of literary gardens and forming of characteristic styles through practical activities that he managed his own gardens. Forth, Bai Juyi's level of Confucianism realization and delicate aesthetical consciousness gave meanings to the scene of gardens through the discovery of the fusion of mountains and creeks, ways of adding, and the aesthetical consciousness of Taihushi(太湖石)and influenced in the forming of garden culture later on.

• Journal of KIISE:Information Networking
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• v.28 no.4
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• pp.463-476
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• 2001

To support the mobility, mobile computers are generally equipped with lower capability than desktop PCs or workstations in terms of the size of a display, the processing power of CPU and so on. This may give a rise to limitation in mobile computers of supporting multimedia services such as World Wide Web which users would otherwise fully enjoy in desktop PCs. Approaches to reducing the limitations are distillating original multimedia data or converting them to text. Conventional proxy servers for mobile computer simply send distillated image files with the fixed size regardless of the display size of a target mobile computer. Since the cached data is kept separately for each user, they cannot be shared among users with the same display configuration and thus the proxy server could be overloaded. In this paper, we first classify various mobile computers based on their display capability in terms of display sizes and colors. We propose an enhanced proxy server called Class-based proxy that provides a mobile computer with distillated image files in proportion to its class display capacity. The proposed proxy server allows a mobile computer user to have a homepage view similar to that in PC or Workstation. Mobile computers with the same class share the cached image files, which are distillated appropriately for that class. This helps the proxy server to get higher cache hit ratio with improved efficiency and scalability.

• Journal of the Korean Society for information Management
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• v.37 no.2
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• pp.119-144
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• 2020

The purpose of this study is to obtain basic information and implications for developing media information literacy curriculum by comparing and analyzing UNESCO's media and information literacy competencies and AASL's key competencies with the 2015 Revised Curriculum and the Library and Information Life curriculum. As a result of the analysis, First, UNESCO's MIL and AASL's key competencies in media information literacy were related to the competencies of the 2015 Revised Curriculum. Second, UNESCO's MIL included more aspects of the composition and competencies of information literacy than media literacy. For this reason, it could be said that media information literacy more appropriately reflects the content pursued by media literacy education than media literacy. Third, UNESCO's MIL included more training content for media literacy than information literacy. Fourth, the contents of media literacy were found to be insufficient in the Library and Information Life curriculum compared to the education contents of library and information literacy. Fifth, the competency standards related to media information literacy and Libraries and Information Life did not present cultural sensitivity competency. Based on the results of the study, It is necessary to develop a media information literacy curriculum that fuses the contents of media literacy beyond the information literacy that use library resources.

• Journal of Navigation and Port Research
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• v.35 no.1
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• pp.57-62
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• 2011

On the view point of renewable energies as energy sources of district heating and cooling plant, the purpose of this study is to develop, classify and map the 500m${\times}$500m mesh, of which is treated as normal size in DHC regulations for evaluation process. Followings are the results. Various building and geographical informations including 13 districts and 108 counties are re-defined to create 500m${\times}$500m meshes, and it is find out that 3,289 meshes among 8,463 meshes have meaningful floor areas. Only 59 meshes(1.8%) are evaluated as mesh which has more than 50% of building volume ratio per mesh. 5 clusters classified by principal analysis and cluster analysis with building needs' characteristics are defined. Gwang-an Dong is representative of cluster 1 characterized as commercial area, and the cluster 4, 5 which has mainly residential needs are distributed in Yong-ho dong. Because there are a lot of cluster 3 meshes, which has complex needs area based on residential, cluster 3 could be defined as representative of Busan metropolitan city.

• The KIPS Transactions:PartB
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• v.14B no.7
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• pp.531-540
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• 2007

In this research, we proposed a two-phase hybrid stock price forecasting model with cointegration tests and artificial neural networks. Using not only the related stocks to the target stock but also the past information as input features in neural networks, the new model showed an improved performance in forecasting than that of the usual neural networks. Firstly in order to extract stocks which have long run relationships with the target stock, we made use of Johansen's cointegration test. In stock market, some stocks are apt to vary similarly and these phenomenon can be very informative to forecast the target stock. Johansen's cointegration test provides whether variables are related and whether the relationship is statistically significant. Secondly, we learned the model which includes lagged variables of the target and related stocks in addition to other characteristics of them. Although former research usually did not incorporate those variables, it is well known that most economic time series data are depend on its past value. Also, it is common in econometric literatures to consider lagged values as dependent variables. We implemented a price direction forecasting system for KOSPI index to examine the performance of the proposed model. As the result, our model had 11.29% higher forecasting accuracy on average than the model learned without cointegration test and also showed 10.59% higher on average than the model which randomly selected stocks to make the size of the feature set same as that of the proposed model.

• Korean Journal of Plant Resources
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• v.24 no.5
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• pp.489-498
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• 2011

This study was carried out to investigate the distribution status and urbanization index of the naturalized plants. For this purpose, 7 cities and counties in the eastern area of Jeollanamdo were selected and investigations were conducted on a total of 14 sites, during the period of March 2006 to November 2008. The naturalized plants were identified as 123; 22 families, 75 genera, 118 species, and 5 varieties. As for the urbanization index, Suncheon city had the highest level of urbanization (33.45%) and Gurye county the lowest level of urbanization (20.21%). Classification families were as follows: Compositae 40 kinds (30.1%) Gramineae 17 kinds (12.8%) and Leguminosae 14 kinds (10.5%). Major communities of naturalized plants consisted of 20 communities including Erigeron annuus community, Erigeron canadensis community, Alnus firma community, Amorpha fruticosa community, Oenothera odorata community, Bidens frondosa community, Coreopsis tinctoria community, Ambrosia artemisiifolia var. elatior community etc. Invasive naturalized plants consisted of 5 taxa: Ambrosia artemisiifolia var. elatior, Ambrosia trifida, Eupatorium rugosum, Paspalum distichum var. indutum and Paspalum distichum. The distributional characteristics of naturalized plants were divided on the basis of six areas associated with ecological characteristics of a habitat.

• Journal of Korea Port Economic Association
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• v.29 no.1
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• pp.77-97
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• 2013

This paper focuses upon the relationship between port and port city. The purpose of this study is to theoretically review the relationship between port and its city, and to identify crucial policy directions for mutual development of port and the backward city in the case of Gwangyang Port (GP), Korea. The contents of this paper consist of five main sections: introduction; a concept of port-port city relationship; an analysis of the relationship between GP and its city; policy directions for GP city; conclusion. This study was mainly conducted by a literature review of the papers/reports and the analysis of secondary data. Significant policy strategies are associated with development of value-added logistics, expansion of additional port business, vitalization of port hinterlands, and establishment of port logistics clusters in terms of port economic function. Green port operation, improvements of coastal environment, establishment of port waterfronts, and conceptual port redevelopment master plan are included in the major port city development strategies in terms of sustainable development. Another major port city development strategies contain major port city master plan, institutional arrangements for port city development, specialized port city development policy, and formation of free trade port city in relation to integrated port-port city planning and management.