• 제목/요약/키워드: Global-Local Analysis

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Near-tip grid refinement for the effective and reliable natural element crack analysis

  • Cho, J.R.
    • Structural Engineering and Mechanics
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    • 제70권3호
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    • pp.279-287
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    • 2019
  • This paper intends to introduce a near-tip grid refinement and to explore its usefulness in the crack analysis by the natural element method (NEM). As a sort of local h-refinement in FEM, a NEM grid is locally refined around the crack tip showing the high stress singularity. This local grid refinement is completed in two steps in which grid points are added and Delaunay triangles sharing the crack tip node are divided. A plane-state plate with symmetric edge cracks is simulated to validate the proposed local grid refinement and to examine its usefulness in the crack analysis. The crack analysis is also simulated using a uniform NEM grid for the sake of comparison. The near-tip stress distributions and SIFs that are obtained using a near-tip refined NEM grid are compared with the exact values and those obtained using uniform NEM grid. The convergence rates of global relative error to the total number of grid points between the refined and non-refined NEM grids are also compared.

스포츠 웨어 브랜드의 콜라보레이션, 원산지, 유행관여도가 중국소비자의 호의도에 미치는 영향 (The Effects of Collaboration, Brand Origin, and Fashion Involvement of Sportswear Brands on Preference of Chinese Consumers)

  • 사문;변유선;황선진
    • 패션비즈니스
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    • 제27권1호
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    • pp.126-139
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    • 2023
  • The purpose of this study was to investigate and verify interaction effects of collaboration and brand origin as well as fashion involvement on consumer attitudes towards global sports apparel brands and Chinese local sports apparel brands targeting Chinese consumers. A survey was conducted on 425 Chinese women aged 19 to 34 years. Data were subjected to frequency analysis, reliability analysis, t-tests, 3-way ANOVA, and simple effect analysis. Results of the study are as follows. First, fashion involvement, collaboration, and brand country of origin all had a significant effect on consumer preference of Chinese consumers when purchasing sportswear. Second, fashion involvement and collaboration in purchasing sportswear had a significant interaction effect on consumer preference. Finally, collaboration, brand origin, and fashion involvement showed significant three-way interaction effects on Chinese consumers' preferences. Results of this study can help establish an efficient marketing strategy for Chinese local sportswear brands, which are fiercely competing with global sportswear brands in the Chinese market because they can examine Chinese consumers' attitudes toward sportswear brands. To accurately compare global and local sportswear brands, it must be assumed that there are no differences in brand preferences among consumers. However, as this study selected each brand as the research brand ranked as the top preference, this aspect was not taken into consideration. Therefore, in future research, it is necessary to consider differences in brand preferences and conduct the study accordingly.

글로벌 소매상의 서비스 마케팅믹스 요인이 고객만족 및 충성도에 미치는 영향 (The Effect of Global Retailer's Service Marketing Mix on Local Customers' Satisfaction and Loyalty Behaviors)

  • 김길성;류연웅;수등우
    • 무역학회지
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    • 제42권2호
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    • pp.77-96
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    • 2017
  • 본 연구는 중국에 진출한 글로벌 소매상을 대상으로 실증분석을 통해 서비스 마케팅믹스 요인이 현지고객의 만족도와 충성도에 미치는 영향력을 규명하고자 하였다. 이를 위해 선행연구를 근거로 3개의 연구가설을 설정한 후 구조방정식모형을 이용해 가설을 검증하였다. 분석결과, 서비스 마케팅믹스 요인이 고객만족에 직접 영향을 미치고, 고객만족은 충성도에 긍정적 영향을 미치는 것으로 나타났다. 하지만 서비스 마케팅믹스 요인이 충성도에 직접 영향을 미치지 않음으로써, 고객만족이 서비스 마케팅믹스와 충성도 간의 중대한 매개 역할을 한다고 판단할 수 있다. 또 서비스 마케팅믹스 7Ps 가운데 촉진을 제외한 다른 요인들은 모두 통계적으로 유의하게 나타났다. 비록 촉진요인의 신뢰도가 낮게 나타났지만, 글로벌 소매상들이 중국시장에 성공적으로 진출하기 위해서는 촉진을 포함한 서비스 마케팅믹스 요인을 현지 소비문화에 맞춰 적응 및 차별화할 필요가 있다는 점을 본 연구결과가 시사한다.

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Spatial Changes in Work Capacity for Occupations Vulnerable to Heat Stress: Potential Regional Impacts From Global Climate Change

  • Kim, Donghyun;Lee, Junbeom
    • Safety and Health at Work
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    • 제11권1호
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    • pp.1-9
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    • 2020
  • Background: As the impact of climate change intensifies, exposure to heat stress will grow, leading to a loss of work capacity for vulnerable occupations and affecting individual labor decisions. This study estimates the future work capacity under the Representative Concentration Pathways 8.5 scenario and discusses its regional impacts on the occupational structure in the Republic of Korea. Methods: The data utilized for this study constitute the local wet bulb globe temperature from the Korea Meteorological Administration and information from the Korean Working Condition Survey from the Occupational Safety and Health Research Institute of Korea. Using these data, we classify the occupations vulnerable to heat stress and estimate future changes in work capacity at the local scale, considering the occupational structure. We then identify the spatial cluster of diminishing work capacity using exploratory spatial data analysis. Results: Our findings indicate that 52 occupations are at risk of heat stress, including machine operators and elementary laborers working in the construction, welding, metal, and mining industries. Moreover, spatial clusters with diminished work capacity appear in southwest Korea. Conclusion: Although previous studies investigated the work capacity associated with heat stress in terms of climatic impact, this study quantifies the local impacts due to the global risk of climate change. The results suggest the need for mainstreaming an adaptation policy related to work capacity in regional development strategies.

When Does Auto-Parts Suppliers' Innovation Reduce Their Dependence on the Automobile Assembler?

  • Kang, Jihoon;Choe, Soonkyoo
    • Journal of Korea Trade
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    • 제24권3호
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    • pp.37-54
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    • 2020
  • Purpose - This study is to investigate the determinants of suppliers' dependence on buyers in the home country by developing a theoretical model of innovative activities. The high dependence of auto parts suppliers on a single local buyer in South Korea due to firm ownership issues and incremental innovation is examined using data from a set of organizations that supply intermediate goods to this automotive manufacturer. Furthermore, we tested the moderating effect of FDI and global knowledge sourcing on the relationship between firm ownership and suppliers' dependence on the local buyer. Design/methodology - To test the hypotheses, we examined a sample of 101 suppliers over 10 years in the Korean automobile parts industry. In this empirical analysis, we utilized a fixed-effects generalized least squares model using panel data. Findings - In this study, domestic firms (automobile parts suppliers) were more dependent on a single local buyer (automobile assembler) than foreign-owned suppliers operating in Korea. In addition, incremental innovation was the mediating mechanism between domestic firms and dependence on the local buyer. To reduce this dependence on the buyer, we suggest two different international strategies: geographical diversification through FDI and global knowledge sourcing. Originality/value - Previous studies showed that asymmetric dependence between firms has many adverse effects. This study proved that domestic and foreign-owned suppliers have different levels of dependence on local buyers due to their heterogeneous characteristics and business strategies. We distinguish two different types of innovation - radical innovation and incremental innovation - that previous studies have often treated as equal when it comes to firm autonomy. Finally, we propose that both FDI and international knowledge sourcing as global strategies to weaken suppliers' asymmetric dependence on a single buyer.

LNG선 단열시스템의 슬로싱 충격하중에서의 국부확대해석 (Local Zooming Analysis of LNGC CCS under Sloshing Impact Loading)

  • 이상갑;;조헌일;김진경;안지웅
    • 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.

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한국 해외투자 현지법인의 인재등용 방안에 관한 연구 (A Study of Localization of Human Resources Recruitment in the Overseas Investment of the Korean Firms)

  • 김희수
    • 정보학연구
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    • 제10권2호
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    • pp.11-27
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    • 2007
  • This thesis is analysing localization of human resources recruitment in the overseas investment of the Korean firms. The main results of the analysis can be summarized as follows: first, Korean overseas local corporations have achieved localization for physical workers. But localization above middle manager level is very poor. Second, local corporations are managed by the employee from Korean parent company. Third, parent company mentioned language ability, work process ability of local business, responsibility, leadership as selection basis for the workers in overseas local corporations. Localization propel strategy of local corporation human resources recruiting : (1) human resources recruiting strategy is the strategy of outsider. simple global human resources recruiting strategy is the recruiting of person dispatched from headquarter rather than local human resources (2) human resources recruiting strategy is the strategy of multidomestication. multidomestication human resources recruiting strategy is the strategy to use in case of stabilization in local area.

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Simplified robustness assessment of steel framed structures under fire-induced column failure

  • Jiang, Binhui;Li, Guo-Qiang;Yam, Michael C.H.
    • Steel and Composite Structures
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    • 제35권2호
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    • pp.199-213
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    • 2020
  • This paper proposes a Global-Local Analysis Method (GLAM) to assess the progressive collapse of steel framed structures under fire-induced column failure. GLAM obtains the overall structural response by combining dynamic analysis of the heated column (local) with static analysis of the overall structure (global). Test results of two steel frames which explicitly consider the dynamic effect during fire-induced column failure were employed to validate the proposed GLAM. Results show that GLAM gives reasonable predictions to the test frames in terms of both whether to collapse and the displacement verse temperature curves. Besides, several case studies of a two-dimensional (2D) steel frame and a three-dimensional (3D) steel frame with concrete slabs were conducted by using GLAM. Results show that GLAM gives the same collapse predictions to the studied cases with nonlinear dynamic analysis of the whole structure model. Compared with nonlinear dynamic analysis of the whole structure model, GLAM saves approximately 70% and 99% CPU time for the cases of 2D and 3D steel frame, respectively. Results also show that the load level of a structure has notable effects on the restraint condition of a heated column in the structure.