• Journal of the Korean Society for Railway
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• v.19 no.2
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• pp.251-261
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• 2016

In this paper, changes of railway-related organization during the Japanese colonial period were studied indepth. The railway-related organizations were expanded from the Railway Management Bureau in 1906 (Residency-General). In 1910, this bureau changed to the General of Chosun Railway Bureau (Government-General) and the Chosun Railway Bureau (Government-General). In the 1940's, it developed into an organization called the Transport Bureau, dealing with the whole transport service. The number of employees in the railway sector increased along with the expansion of the organization and the establishment of a training institution for better recruitment. After examining the period of the construction of railway and connection system, which is deeply related to the railway organizations of the Japanese colonial period, this paper analyzes the transformation process of railway-related laws and organizations. Furthermore, this paper finds common characteristics and differences between railways in a comparison of three countries: Chosun, Japan and Taiwan.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.34 no.5
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• pp.287-292
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• 2021

We utilized the isogeometric analysis (IGA) method that uses NURBS basis functions in CAD systems, to account for the geometric exactness of a geometrically exact beam deformation, on a new type of metamaterial, twist-translation coupled structure showing a large twist angle. A two-dimensional unit cell structure was embedded in a cylindrical wall, using free-form deformation and an appropriate interpolation scheme. A parametric study on the effects of the dimensions of the cylinder and the number of cells, on the twisting angle was performed. Furthermore, the mechanism of the twist-translation coupled metamaterial was explored through numerical examples.

• Korean journal of communication and information
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• v.45
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• pp.296-340
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• 2009

The power of media has always been problematic in the countries of full press freedom. Originally, the media used to be an effective vehicle for communication within human beings. However, it exerts an overwhelming power toward human society. Through applying the well-known four dog models in terms of media function, this study attempts to examine how the press media in South Korea transformed themselves into another powerful independent organization or institution after regime shift in 1987. The whole editorials of four sampled newspapers were analyzed through frame analysis model. The ChosunIlbo, known as a conservative and pro-government paper, shows to take the role of supporting chaebol policies under Roh TaeWoo Administration. However, it criticizing sharply against the chaebol policies of Roh MooHyun Administration. The JoongangIlbo, known as a pro-chaebol paper, appears anti-government position through the entire four administrations in terms of chaebol policies. Particularly, it reveals hostile editorial coverage during the Roh MooHyun Administration. However, KyunghyangShinmun, currently known as a liberal paper, viewed somewhat complicated positions (see text in more detail) because of its ownership turbulence during the past twenty years. On the other hand, Hangyoreh, regarded as a progressive paper, keeps in supportive attitude consistently against the four sampled administrations as far as regulating each government policies for chaebols.

• Journal of the Korean association of regional geographers
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• v.15 no.1
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• pp.16-35
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• 2009

This paper is to compare the contexts and old place names in old county maps of Goryeong-hyeon(高靈縣) according to the four types of maps. 23 maps covering Goryeong-hyeon were collected from the old county-map atlas(郡縣地圖帖) and Eupji(邑誌). The first type(named 'picture county map') included 8 county-maps in which information of military, and administrative contents are mainly mapped. The second type(named '1-ri grid system map') included 4 county maps in which information about beacon routes and road systems were regarded as very important. The third type(named '20-ri grid-system map(方眼地圖)' included 4 county-maps which were drawn as same scale with 20-ri(里) grids. The fourth type(named 'local county-map(地方郡縣地圖)' included 5 county maps which were drawn by local mappers. Types of toponyms which were included in maps are different by the propose of map-drawing. In the picture county maps, place names from military, and administrative contents are written. In the 1-ri grid system county maps, place names especially from military and transportation are fluent. In the 20-ri grid system county maps, generic name from natural environment, such as mountains are very fluent. In the local county maps, city-walls and castles are drawn exaggeratively and detailed generic name from warehouses and villages are written in those maps. This study shows that Daedongyeo-jido was drawn on the basis of 20-ri grid system county maps with the supplementation of geographical information.

• Journal of the Economic Geographical Society of Korea
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• v.20 no.3
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• pp.355-368
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• 2017

Regarding to Dandong as the gateway city of the Sino-North Korea trade, cultural anthropology characterizes it with a hybridity of four groups with a different combination of ethnic and national identity: Korean Chinese(Chosonjok), South Koreans, North Koreans and Chinese-North Koreans. And, microeconomics views the enterprises in Dandong area have different sizes and types in the Sino-North Korea cross-border trade depending on their owner's ethnic and national identity. However, these researches focuses mainly on the differences between the groups, falling short in showing how the group members utilize their double identities to maintain and prosper their businesses, coping with various and changing situations. This study introduces the concept of 'identity juggling' and applies it to Chosonjok cross-border traders. The results from the in-depth interview and survey indicate they juggles their Korean ethnic identity and Chinese national identity selectively in terms of their bilinguality of the Korean and Chinese, mobility crossing China, South Korea, and North Korea, and prospects on the trade revitalization thanks to potential mitigation of tensions in Korea peninsula.

• Journal of the Economic Geographical Society of Korea
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• v.22 no.4
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• pp.422-437
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• 2019

Compared to the significant number of researches on international immigration, there has been less attention to return migration. This is partly because return migration has been understood as a simple phenomenon resulted from a successful return with accumulated capital or adaptation failure. Since the mid-1990s, a large number of Korean-Chinese have migrated to Korea, and recently it became more common to witness the return of them. This study examines the strategic choice of self-employed Korean-Chinese returning to Yanbian, Recently, an increasing number of Korean-Chinese starts a small business, such as restaurants in Yanbian after accumulating capital in Korea. The relatively short stay in Korea is not only for saving money to initiate their own business. Rather, they could obtain new business opportunities in Yanbian by using the experiences and networks built in Korea. In short, the return migration of the Korean-Chinese to Yanbian can be understood as a strategy of capital accumulation utilizing the gap in the World-systems.

• Journal of the Korean Society for Railway
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• v.18 no.5
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• pp.489-501
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• 2015

This paper analyses the decision process of the Gilhoe Line construction of the Manchurian Railway and consignment process of the North Korea Line to the South Manchuria Railways as part of the 12-year Chosun railway plan. It was found that these two events were connected and could be explained by Japan's consistent continental policy, which had expanded its territory toward China. This paper explicates Japan's railroad policy and the characteristics of the Chosun railway. Moreover, evidence to identify connections among Japan's national railway, the Manchurian railway, and the Chosun railway has been scrutinized. One territory policy between Chosun and Manchuria is also examined. Comparison of new resources on the Gilhoe Line construction of the Manchurian railway and the 12-year plan of the Chosun railway, and their correlations, is expounded. This paper elucidates that the Gilhoe Line construction and the North Korea line consignment operation by the South Manchuria Railways had the intention of obtaining Japanese military and economic supremacy over East Asia.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2010.05a
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• pp.1435-1436
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• 2010

• Proceedings of the KSMRM Conference
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• 2007.10a
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• pp.65-65
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• 2007

• Proceedings of the Korean Information Science Society Conference
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• 2012.06d
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• pp.271-273
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• 2012

본 논문은 장거리 RF통신모듈을 적용하여 고정적인 통신비용이 없으며 5Km전후의 장거리 무선데이터 통신이 가능한 산업용 관제시스템을 구현함으로써 다양한 분야의 산업용 관제시스템에 대한 실증자료로 활용하고, 구현과정에서 발생한 문제점을 고찰하여, 최적의 방안을 도출하는데 목적이 있다. 이에 본 논문에서는 선박 건조 시 사용되는 조선소 화재감시시스템을 구현함으로써 산업용 관제시스템 구현에 있어 장거리 RF통신모듈의 적합성을 확인하였다.