• Title/Summary/Keyword: 학자

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Technical Reviews on Ecosystem Modeling Approach and its Applicability in Ecosystem-Based Coastal Management in Saemangeum Offshore and Geum River Estuary (생태계기반 연안관리를 위한 생태모델 개발방향에 대한 기술적 검토 - 새만금 외해역 및 금강 하구역 사례)

  • Kim, Hae-Cheol;Kim, Yong Hoon;Chang, Won-Keun;Ryu, Jongseong
    • Journal of the Korean Society for Marine Environment & Energy
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    • v.18 no.3
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    • pp.233-244
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    • 2015
  • Marine ecosystem modelling has become a more widely used decision-making tool in coastal ecosystem-based management. However, it is not trivial to develop a well calibrated/validated model with potential applicability and practicality because understanding ecological processes with complexities is a pre-requisite for developing robust ecosystem models and this accompanies a great deal of well coordinated efforts among field-going ecologists, laboratory scientists, modelers, stake-holders and managers. This report aims to provide a brief introduction on two different approaches in marine ecological models: deterministic (mechanistic) and stochastic (statistical) approach. We also included definitions, historical overview of past researches, case studies, and contextual suggestions for coastal management in Korea. A long list of references this report included in this study might be used as an introductory material for those who wish to enter ecosystem modelling field.

Determination of Thematic Roles according to Syntactic Relations Using Rules and Statistical Models in Korean Language Processing (한국어 전산처리에서 규칙과 확률을 이용한 구문관계에 따른 의미역 결정)

  • 강신재;박정혜
    • Journal of Korea Society of Industrial Information Systems
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    • v.8 no.1
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    • pp.33-42
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    • 2003
  • This paper presents an efficient determination method of thematic roles from syntactic relations using rules and statistical model in Korean language processing. This process is one of the main core of semantic analysis and an important issue to be solved in natural language processing. It is problematic to describe rules for determining thematic roles by only using general linguistic knowledge and experience, since the final result may be different according to the subjective views of researchers, and it is impossible to construct rules to cover all cases. However, our hybrid method is objective and efficient by considering large corpora, which contain practical usages of Korean language, and case frames in the Sejong Electronic Lexicon of Korean, which is being developed by dozens of Korean linguistic researchers. To determine thematic roles more correctly, our system uses syntactic relations, semantic classes, morpheme information, position of double subject. Especially by using semantic classes, we can increase the applicability of our system.

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Preprocessing Algorithm of Cell Image Based on Inter-Channel Correlation for Automated Cell Segmentation (자동 세포 분할을 위한 채널 간 상관성 기반 세포 영상의 전처리 알고리즘)

  • Song, In-Hwan;Han, Chan-Hee;Lee, Si-Woong
    • The Journal of the Korea Contents Association
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    • v.11 no.5
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    • pp.84-92
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    • 2011
  • The automated segmentation technique of cell region in Bio Images helps biologists understand complex functions of cells. It is mightly important in that it can process the analysis of cells automatically which has been done manually before. The conventional methods for segmentation of cell and nuclei from multi-channel images consist of two steps. In the first step nuclei are extracted from DNA channel, and used as initial contour for the second step. In the second step cytoplasm are segmented from Actin channel by using Active Contour model based on intensity. However, conventional studies have some limitation that they let the cell segmentation performance fall by not considering inhomogeneous intensity problem in cell images. Therefore, the paper consider correlation between DNA and Actin channel, and then proposes the preprocessing algorithm by which the brightness of cell inside in Actin channel can be compensated homogeneously by using DNA channel information. Experiment result show that the proposed preprocessing method improves the cell segmentation performance compared to the conventional method.

Evaluating Geopolitical Impact through the Concept of Social Performance: The Case of a Mormon General Conference (사회적 수행의 개념을 통한 지정학적 영향의 평가 -몰몬교 연차대회를 사례로-)

  • Ethan, Yorgason
    • Journal of the Korean Geographical Society
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    • v.45 no.5
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    • pp.669-687
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    • 2010
  • Critical scholarship has shown itself much more adept at identifying and analyzing the content of religious geopolitics than its impacts or effects. This article suggests ways in which the concept of social performance can be used to more carefully consider the effects of religious geopolitics. Judith Butler's identity-oriented notion of performativity is usually geographers' point of entry into issues of performance. But its strong poststructuralist distrust of agency limits its power among those who question poststructuralism's grounding beliefs. This article illustrates the added utility of other theories of performance-particularly the recent pragmatic, dramaturgical, and non-poststructuralist theorization of social performance by the cultural sociologist Jeffrey Alexander-in evaluating the impact of religious geopolitical action. It does so through the case of a recent, particularly geopolitically laden Mormon General Conference. It concludes, through Butler and Alexander, that this General Conference likely accomplished significant geopolitical work. But it also, mainly through Alexander, argues that this work likely had limited capacity to motivate new or additional geopolitical action. Its power was more to reinforce than transform.

Rethinking Clusters : Towards a More Open and Evolutionary Approach (전통적 산업집적지의 변화과정과 경제적 성과)

  • Mackinnon, Danny
    • Journal of the Korean Academic Society of Industrial Cluster
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    • v.2 no.1
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    • pp.14-27
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    • 2008
  • Ousters have become a key focus of interest and analysis over the last decade or so, informed by the work of the Harvard business economist Michael Porter. Recent research, however, suggests that the classic Porterian conception of clusters needs to be rethought. In particular, the idea that clusters are geogaphically bounded and integrated units whose primary link to the outside world is through the export of goods and services to global markets is highly Questionable, if not untenable. Relational approaches to clusters and regional development stress the importance of the wider networks and 'pipelines' through which knowledge is exchanged with key partners and collaborators located outside of the particular cluster in question. Rather than the main external links being those between leading firms and global markets, firms may engage in a range of global relations with collaborators and suppliers. This paper address the challenge of rethinking clusters in the light of the recent emphasis on global networks md connections, drawing on experience from m old industrial region in Western Europe Scotland. In assessing cluster experiences and initiatives in Scotland, I examine the development of the oil and gas and electronics clusters. In conclusion, I suggest that cluster initiatives me only likely to generate lasting benefits for the region in question if there is significant local ownership md control of key industries and clusters.

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Rationality Review of Cost Allocation Methodology at CHP (열병합발전에서 비용배분 방법론의 합리성 검토)

  • Kim, Deokjin;Choi, Byungryeal
    • Journal of Energy Engineering
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    • v.29 no.2
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    • pp.40-60
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    • 2020
  • When various kinds of products are produced from a single energy system, the methodology which allocates the common cost to each product cost is very important because it is directly related with the profit and loss of producer and purchaser. In the cost allocation methodology of electricity and heat for CHP, there are heat method, work method, benefit distribution method, exergy method, and so on. Benefit distribution method is the most widely known worldwide, and exergy method is widely recognized among thermal engineers. As a result of review, it is judged that the rationality of benefit distribution method is low because the result deviates from common sense, and the rationality of exergy method is high because the result consistent with common sense. In accounting, it is calculated as merit methodology and the result is used for negotiations between producer and buyer, but In thermal engineering, the rationality of exergy methodology is described only as a thesis. The purpose of this study is to compare and examine the rationality of merit methodology and exergy methodology, and the aim is to describe in detail in order that producer and buyer can understand the rationality of each methodology.

On Pierre Bourdieu's Sociological Engagement and Media Practices (피에르 부르디외의 사회학적 참여와 미디어 실천)

  • Lee, Sang-Gil
    • Korean journal of communication and information
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    • v.29
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    • pp.147-188
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    • 2005
  • This study attempts to review and evaluate the sociological engagement and media practices of an eminent French sociologist Pierre Bourdieu. In the first part of the paper, I presented some characteristics of Bourdieu's view on the sociological engagement. In the second part, I also examined Bourdieu's alternative media strategies(ARSS, Liber, Raisons d'agir) which were designed to intervene effectively in the academy and public sphere of French society. For Bourdieu, the sociological engagement can be conceived and legitimized as follows: first, the talents of the ensemble of 'specific intellectuals' in Foucaldian sense should be combined to constitute a kind of 'large collective of intellectuals' Second, this 'collective of intellectuals' should make 'corporatist' efforts to improve the autonomy of the 'field of cultural production', which is the indispensable condition for the conquest of 'the universal' Bourdieu tried to realize his logic of sociological engagement through all his intellectual works, media activities and political intervention. In appreciating positively the consistency and originality of Bourdieu's theory and practice of engagement, I proposed to reconsider some limits of his 'modern' politics - enlightenment, science, collectivity - in today's 'postmodern condition'.

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The Formation Mechanism of Ethnic Enclaves: A Case Study of Bom Retiro Korean Garment Industrial District in Brazil (에스닉 인클레이브의 형성 메커니즘: 브라질 봉헤찌로 한인 의류산업지구를 사례로)

  • Moon, Sora;Jang, YoungJin
    • Journal of the Economic Geographical Society of Korea
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    • v.17 no.4
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    • pp.876-891
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    • 2014
  • Previous studies of ethnic enclaves did not provide an adequate explanation of the geographical contexts and spatial implications of industrial production systems, as a result of emphasizing ethnic networks with stagnant participation from geographers. The objective of this study was to identify and examine the formation mechanism of Korean ethnic enclaves through the case of Bom Retiro's Korean garment industrial district in Brazil, specifically by performing an integrated review of the development path of Bom Retiro, the garment industry's production systems, and ethnic networks. The research findings indicated that the formation of this region's ethnic enclave was indeed highly influenced by ethnic networks; however, it was also affected by the development path of the region as a migrant garment industrial district and spatial convergence pertaining to the production systems of garment industries. Moreover, the formation of Bom Retiro's ethnic enclave also involved active participation of non-ethnic immigrant communities and local Brazilians.

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A Study on the Problem for discussion about Photogeography (사진지리학의 역할과 범위)

  • Kim, Joo-Hwan
    • Journal of the Speleological Society of Korea
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    • no.74
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    • pp.33-43
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    • 2006
  • The purpose of this study is to scientifically establish the concepts of photogeography, and to present desirable directions for the pursuit of photogeography in Korea. Photogeography is to effectively utilize the documentary and artistic nature of the photo, as an image medium, in the geographic study. The concept of photogeography, along with the term photogeology, is already known widely in foreign countries, and extensive research has been carried out in the field. However, here in Korea, nobody knows the concept of photogeography. Since photogeography has not been systemized as a science, and interest in photography is being minimal, photography, in reality, has in no way been utilized effectively. The photographs used in Photogeography can be classified, according to character, into two major categories, geographic photographs and general photographs, and, according to subject and camera, into still photographs and dynamic photographs. Photographs, such single photographs, slides, air photographs and satellite photographs are in the category of still photographs, while pictures like video and movie pictures are dynamic photographs.

Melia toosendan and M. azadarach are a single species due to their genetic similarity (유전적 유사성으로 보아 멀구슬나무와 천련은 동일종)

  • Kim, Hoe-Won;Yeon, Seung-Woo;Kim, Ki-Joong
    • Korean Journal of Plant Taxonomy
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    • v.45 no.1
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    • pp.36-44
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    • 2015
  • The nucleotide sequences of six markers, including nuclear ITS, chloroplast matK, rbcL, atpF-H, psbK-I and psbA-trnH, were analyzed for the plants known as Melia toosendan collected in Southwest China; M. azadarach planted in Southeast China, Korea and India; and species related to Sapindaceae in order to clarify the species boundary between M. toosendan and M. azadarach. The result of a phylogenetic analysis using the nuclear ITS and five chloroplast marker sequences determined that the plants known as M. toosendan and M. azadarach are the same species. These two species have been treated as a single species or as two different species depending on the researcher. The result of the present study supports the contention that the two species are the same. In addition, a sister species to M. azadarach registered in various countries with various basionyms is Azadirachta indica, a well-known medicinal plant. It has previously been classified as a member of the genus Melia.