• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2011년도 정기 학술대회
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• pp.544-551
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• 2011

As the cargo tank size and configuration of Liquefied Natural Gas carriers(LNGC) grows in response to the global increase in demands for LNG and the necessities of its economical transportation, impact loading from sloshing may become one of the most important factors in the structural safety of LNG Cargo Containment Systems(CCS). The objective of this study is to demonstrate the procedure of the structural safety assessment of MARK III membrane type CCS under sloshing impact loading using local zooming analysis technique of LS-DYNA code.

• 한국시스템다이내믹스연구
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• 제8권1호
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• pp.117-149
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• 2007

This paper aims to analyse the impact of city-county consolidation on promotion practices of local government employees, using system dynamics approach. The cases employed in this study are Cheongju City and Cheongwon County which reached the referendum stage twice but without success. While the idea of consolidating two neighbouring local governments via a merger sounds enticing, some opponents argue that consolidation may cause some problems on the part of local government employees, emphasizing that consolidation could lengthen actual time period needed for local government employees' promotion. The majority of the existing literature on city-county consolidation, however, tends to describe the most successful cases, focusing on the achievements it has made or the political processes associated with it. With this in mind, this paper attempts to identify the impacts of consolidation on the local government employees' promotion time period, utilizing system dynamics approach. It concludes that consolidation could rather shorten the time period of promotion of local government employees concerned from the long term perspective.

• 한국콘텐츠학회논문지
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• 제21권3호
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• pp.375-389
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• 2021

최근 4차 산업혁명의 시대를 맞아 지역경제의 새로운 성장 동력이 될 것이라고 기대되는 4차 산업에 대한 관심이 높아지고 있다. 이러한 관심을 바탕으로 다양한 정책들이 수립되고 있으나 실제 지역경제에 미치는 영향에 대한 연구는 미흡한 실정이다. 이에 본 연구는 4차 산업의 집적수준의 변화가 지역경제 성장에 미치는 영향을 전국의 시군구를 대상으로 공간통계모형을 사용하여 분석하였다. 분석결과, 4차 산업의 집적이 지역경제의 생산성 측면에는 긍정적인 영향을 주지만 지역의 소득에 대해서는 영향을 준다는 근거를 발견하기 어려웠다. 따라서 4차 산업의 집적이 지역경제에 미치는 영향은 제한적인 것으로 확인되었다. 또한, 4차 산업 유형별로 집적이 지역경제에 미치는 영향이 상이하였으며, 지역경제 영향을 주는 4차 산업혁명 관련 산업은 제조업과 금융 및 보험업의 집적으로 나타났다.

• 통상정보연구
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• 제6권3호
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• pp.225-242
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• 2004

As is widely accepted, port development has a significant impact on the regional economy. In view of the far-reaching effects and diversity, understanding its concrete substance is easier said than done. The need for a systematic approach to this subject is very urgent. This study aims at grasping a various fields that port development encompasses, as practical as possible. Therefore, this article describes the basic economic impact and characteristics of port development and explores the implications for regional economy.

• 도시과학
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• 제9권1호
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• pp.41-49
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• 2020

This study analyzed the factors affecting economic growth using multiple regression model and Geographically Weighted Regression in consideration of population, industry and employment, housing and political characteristics on economic growth by region. The analysis results are summarized as follows. First, the total employment growth rate, manufacturing employment growth rate, local election turnout and the level of party consensus between the central and local governments are having a positive impact on regional economic growth. Second, according to the GWR analysis, the population has a positive impact on economic growth in the southern region of Korea, and the increase in the total number of employees has a positive impact on the southern region of Gyeonggi Province, Gangwon Province, North Chungcheong Province and North Gyeongsang Province. Finally, the voter turnout of urbanites is positively affecting economic growth in South Chungcheong Province, Gangwon Province and the southern coast, while North Jeolla and South Jeolla provinces have a positive impact on economic growth as the parties of the central and local governments are equal. The results of this study may suggest the role of local government for regional economic development.

• Nuclear Engineering and Technology
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• 제46권1호
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• pp.73-80
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• 2014

A concrete cask is an option for spent nuclear fuel interim storage. A concrete cask usually consists of a metallic canister which confines the spent nuclear fuel assemblies and a concrete overpack. When the overpack undergoes a missile impact, which might be caused by a tornado or an aircraft crash, it should sustain an acceptable level of structural integrity so that its radiation shielding capability and the retrievability of the canister are maintained. A missile impact against a concrete overpack produces two damage modes, local damage and global damage. In conventional approaches [1], those two damage modes are decoupled and evaluated separately. The local damage of concrete is usually evaluated by empirical formulas, while the global damage is evaluated by finite element analysis. However, this decoupled approach may lead to a very conservative estimation of both damages. In this research, finite element analysis with material failure models and element erosion is applied to the evaluation of local and global damage of concrete overpacks under high speed missile impacts. Two types of concrete overpacks with different configurations are considered. The numerical simulation results are compared with test results, and it is shown that the finite element analysis predicts both local and global damage qualitatively well, but the quantitative accuracy of the results are highly dependent on the fine-tuning of material and failure parameters.

• Nuclear Engineering and Technology
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• 제54권4호
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• pp.1394-1405
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• 2022

The importance of ensuring the inherent safety and security has been more emphasized in recent years to demonstrate the integrity of nuclear facilities under external human-induced events (e.g. aircraft crashes). This work suggests a simulation methodology to effectively evaluate the impact of a commercial aircraft engine onto a dry storage facility. A full-scale engine model was developed and verified by Riera force-time history analysis. A reinforced concrete (RC) structure of a dry storage facility was also developed and material behavior of concrete was incorporated using three constitutive models namely: Continuous Surface Cap, Winfrith, and Karagozian & Case for comparison. Strain-based erosion limits for concrete were suitably defined and the local responses were then compared and analyzed with empirical formulas according to variations in impact velocity. The proposed methodology reasonably predicted such local damage modes of RC structure from the engine missile, and the analysis results agreed well with the calculations of empirical formulas. This research is expected to be helpful in reviewing the dry storage facility design and in the probabilistic risk assessment considering diverse impact scenarios.

• Journal of East Asia Management
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• 제3권2호
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• pp.1-19
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• 2022

This study suggests an integrated theoretical framework for the relationship between political risk and multinational corporation (MNC) subsidiary's performance in the emerging market. The political risk would have a negative impact on MNC subsidiary's performance in the emerging countries that are developing in Asia, the Commonwealth of Independent States, Africa, and South America. The major reason is that political risks could generate a loss of benefit or a loss of control for MNC's subsidiary. In this study, I suggest that corporate social responsibility (CSR) strategy would be a solution to overcome various political risks. Specifically, the affiliated firms with diversified industries or greater financial resources could mitigate the negative impact of political risk than unaffiliated firms. Because they can use their tangible or nontangible asset such as information, technology, and construction in order to gain legitimacy and trust from local government, local community, and local firms in the emerging market. Finally, I claimed the costs of the affiliated firms would exceed the benefits at the initial stages, while the benefits of affiliated firms would exceed the costs over time when political risks become higher. The reason is that the trust gained from local stakeholders accumulates over time and the impact of CSR strategy would become an important solution to overcome the risks in and unstable context.

• 한국도서관정보학회지
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• 제49권1호
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• pp.233-265
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• 2018

본 연구는 국내 어린이도서관 문화프로그램의 사회적 효과를 측정하여 어린이도서관의 사회적 가치를 제시하였다. 이를 위해 초등학생 511명을 대상으로 설문조사를 실시하여 어린이도서관 문화프로그램의 사회적 효과를 측정하였다. 분석 결과 개인적 영역의 표현력/창의력, 자존감, 즐거움/기쁨/행복과 사회적 영역의 문화예술태도와 문화예술경험변화 및 사회적 상호작용으로 친구관계 증대, 지역커뮤니티 생성과 강화, 지역사회 소속감/공동체성, 지역사회참여 등의 효과가 있는 것으로 나타났다. 이를 근거로 어린이도서관은 어린이의 삶의 질을 향상하고, 사회적 상호작용 역량의 향상, 지역사회 공동체 유지 및 지역커뮤니티 생성과 강화, 지역애착과 지역 활동 참가에 영향을 미치는 중요한 사회자본으로 가치를 가진다고 볼 수 있다.

• 대한안전경영과학회지
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• 제19권2호
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• pp.117-133
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• 2017

The purpose of this study is to consider the relation between the deciding factors of local identity and local image improvement. To achieve this purpose, the deciding factors of local identity have been set as the following four: historical identity, cultural identity, (nature) scenery identity, and industrial identity. The writer has established a model to represent the relation between these factors and the local image improvement, namely 'Visitor Satisfaction' and 'Revisit Intentions', and framed a hypothesis for empirical verification. The study results are as follows: First, the deciding factors of local identity which this study addressed are empirically proven to have a significant effect on the visitor satisfaction and the intention to revisit in which is it likely that the greater the impact of the deciding factors, the higher the visitor satisfaction and revisit intentions would be. Second, the deciding factors of local identity, it appears that the 'historical identity' factor had the largest impact on the visitor satisfaction, and the 'cultural identity' factor had the largest impact on the revisit intentions. Therefore, of the four deciding factors, the 'historical identity' should be considered the highest priority to increase the visitor satisfaction, and the 'cultural identity' should be considered the highest priority to increase the revisit intentions. Third, based on the verification of the relation between the visitor satisfaction and revisit intentions, it can be presumed that the greater the visitor satisfaction, the higher the revisit intentions would be.