• Title/Summary/Keyword: global localization

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Human Tracking Technology using Convolutional Neural Network in Visual Surveillance (서베일런스에서 회선 신경망 기술을 이용한 사람 추적 기법)

  • Kang, Sung-Kwan;Chun, Sang-Hun
    • Journal of Digital Convergence
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    • v.15 no.2
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    • pp.173-181
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    • 2017
  • In this paper, we have studied tracking as a training stage of considering the position and the scale of a person given its previous position, scale, as well as next and forward image fraction. Unlike other learning methods, CNN is thereby learning combines both time and spatial features from the image for the two consecutive frames. We introduce multiple path ways in CNN to better fuse local and global information. A creative shift-variant CNN architecture is designed so as to alleviate the drift problem when the distracting objects are similar to the target in cluttered environment. Furthermore, we employ CNNs to estimate the scale through the accurate localization of some key points. These techniques are object-independent so that the proposed method can be applied to track other types of object. The capability of the tracker of handling complex situations is demonstrated in many testing sequences. The accuracy of the SVM classifier using the features learnt by the CNN is equivalent to the accuracy of the CNN. This fact confirms the importance of automatically optimized features. However, the computation time for the classification of a person using the convolutional neural network classifier is less than approximately 1/40 of the SVM computation time, regardless of the type of the used features.

An investigation of cultural identity of taekwondo as a Korean traditional martial art (한국 전통무예로서 태권도의 문화적 정체성 탐색)

  • Ahan, Jeung-Dek;Song, Kang-Young
    • Proceedings of the Korea Contents Association Conference
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    • 2008.05a
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    • pp.262-269
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    • 2008
  • This research, to find the cultural identity of taekwondo, presents the historical origin of taekwondo in lights of Choi-centric theory, kwan-centric theory, karate inflow theory, and successive traditional martial arts theory. Then it investigates taekwondo's inner identity as a Korean traditional martial art according to presence, popularity, and independence, three factors of identity suggested by Tak, S. S.(2000).As a result, it reached these conclusions: First, taekwondo was formed after going through fusion of Hong Hi Choi, karate income in period of cultural severance during Japanese occupation, the first kwan leaders and Korean traditional martial arts, process of disorder and cultural reproduction. Second, taekwondo has essentially inherited and developed Korean barehanded martial arts' movements that lay stress on foot skills, and this distinguishes it from hand-skill-based Japan's karate and China's Wushu Furthermore, trunk/groin protectors and headgears are blended remarkably with taeguk patterns and traditional Colors of Five Directions. All terms rendered into pure Korean words shows the essence of Korean localization. It is therefore concluded that Koreans should, along with trying to overcome exclusive nationalism as a country of origin, build a new paradigm of establishing an identity as a global martial art sport.

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The Impact of Service Quality(Performance Work, Price, Physical Environment) on Customer Satisfaction, Trust, and Intention to Re-attend Ballet Performances : US Localization of K-ballet Content (발레공연의 서비스 품질(작품, 가격, 물리적 환경)이 만족, 신뢰, 재 관람의도에 미치는 영향: K-발레 콘텐츠 미국 현지화를 중심으로)

  • Kim, Kwangjin
    • The Journal of the Korea Contents Association
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    • v.21 no.10
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    • pp.149-162
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    • 2021
  • This study aims to conduct an empirical analysis on the impact of service quality (performance work, price, physical environment) on customer satisfaction, trust and intention to re-attend ballet performances. Another focus of the research is to examine the structural effect of satisfaction and trust on customer's intention to re-attend. This study surveyed 240 adults (Americans) who have physically attended ballet performances from 2019 to 2020. Applying the structural equation modeling analysis using the software SmartPLS, this study investigates 240 valid responses obtained from a global research institute in a mid-August 2020 survey. The findings of the analysis are as follows. (1) Performance work is positively correlated with customer satisfaction, while price and physical environment do not affect customer satisfaction. (2) Performance work is positively correlated with customer trust. However, price and physical environment haven't been observed to affect customer trust. (3) Customer satisfaction is positively correlated with customer trust. (4) Performance work, price and physical environment do not affect customer's intention to re-attend ballet performances. (5) Customer satisfaction is positively correlated with customer intention to re-attend performances. (6) Customer trust is positively correlated with the intention to re-attend performances.

Some Suggestions for Korean Automobile Industry to Branch out into Iran (한국자동차기업의 이란진출을 위한 전략제안)

  • Kim, Hyun-Chul
    • International Area Studies Review
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    • v.21 no.1
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    • pp.163-179
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    • 2017
  • Iran has been focused on FDI by global automobile companies after the economic sanction on Iran was removed except primary sanction. In this paper, some strategies for Korean Automobile Industry to branch out into Iran are suggested. For the purpose, Iran's automobile industry and characteristics are examined. The market situation is analyzed qualitatively and quantitatively. In passenger cars sector, Korean automobile companies would be better to wait and see the development of US-Iran relationships while exporting CKD sets of cars to Iran. It can be a good strategy, however, to put parts companies into Iran first because of Iran Government could be displeasing with exporting CKD only. FDI, licensing, and joint venture are all available for the parts companies. Motor companies can clear the regulation of auto-parts localization proportion by the method. The parts companies will be able to do key roles as supply chains after OEM branch out into Iran. It is also advisable to upgrade outpost in Iran into frontline for exporting cars to MENA area. In such a case it will be a prerequisite to develop a role-division model with facilities in East Europe. It could be called Parts first-then cars strategy. In commercial cars sector, it can be suggested to leverage natural gas as a link to branch out into Iran. Iran government wishes to develop natural gas resources. The strategy can be summarized that automobile companies carry out producing CNG buses in Iran while energy companies are drilling and producing natural gas.

An Analysis of Technology Needs for Environmental Issues in Developing Countries (개도국 환경 분야 기술 수요 분석)

  • Jeong, Seongpil;Sohn, Erica Jungmin;Kim, Junyoung;Hwang, Jiyun;Seok, Dockko;Choi, Young Gyun
    • Journal of Appropriate Technology
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    • v.5 no.2
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    • pp.106-113
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    • 2019
  • In order to respond to the global environmental issues, developed countries have been helped the developing countries as the Official Development Assistance (ODA). It is important to understand technology needs of the developing countries to provide the optimum solutions. In this study, the information of the environmental R&D dealing with appropriate technology were comprehensively collected based on the conducted R&D projects from the ministry of environment in Korea. The technology needs by UNFCCC (United Nations Framework Convention on Climate Change) and Korean government were analyzed named as TNA and CPS according to the target developing countries. In South-East Asia and Africa region, there were technology needs on water, biota, air, solid wastes, infrastructures and resources. And they were related to the issues such as environmental pollution, construction, climate change, biodiversity, energy and water management. The technology needs by UNFCCC and Korean government were also compared. Furthermore, the environmental R&D on appropriate technology should be focused on localization and maintenance to provide sustainable solutions to the developing countries.

Mountain-cultivated ginseng protects against cognitive impairments in aged GPx-1 knockout mice via activation of Nrf2/ChAT/ERK signaling pathway

  • Bao Trong Nguyen;Eun-Joo Shin;Ji Hoon Jeong;Naveen Sharma;Ngoc Kim Cuong Tran;Yen Nhi Doan Nguyen;Dae-Joong Kim;Myung Bok Wie;Yi Lee;Jae Kyung Byun;Sung Kwon Ko;Seung-Yeol Nah;Hyoung-Chun Kim
    • Journal of Ginseng Research
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    • v.47 no.4
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    • pp.561-571
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    • 2023
  • Background: Escalating evidence shows that ginseng possesses an antiaging potential with cognitive enhancing activity. As mountain cultivated ginseng (MCG) is cultivated without agricultural chemicals, MCG has emerged as a popular herb medicine. However, little is known about the MCG-mediated pharmacological mechanism on brain aging. Methods: As we demonstrated that glutathione peroxidase (GPx) is important for enhancing memory function in the animal model of aging, we investigated the role of MCG as a GPx inducer using GPx-1 (a major type of GPx) knockout (KO) mice. We assessed whether MCG modulates redox and cholinergic parameters, and memory function in aged GPx-1 knockout KOmice. Results: Redox burden of aged GPx-1 KO mice was more evident than that of aged wild-type (WT) mice. Alteration of Nrf2 DNA binding activity appeared to be more evident than that of NFκB DNA binding activity in aged GPx-1 KO mice. Alteration in choline acetyltransferase (ChAT) activity was more evident than that in acetylcholine esterase activity. MCG significantly attenuated reductions in Nrf2 system and ChAT level. MCG significantly enhanced the co-localization of Nrf2-immunoreactivity and ChAT-immunoreactivity in the same cell population. Nrf2 inhibitor brusatol significantly counteracted MCG-mediated up-regulation in ChAT level and ChAT inhibition (by k252a) significantly reduced ERK phosphorylation by MCG, suggesting that MCG might require signal cascade of Nrf2/ChAT/ERK to enhance cognition. Conclusion: GPx-1 depletion might be a prerequisite for cognitive impairment in aged animals. MCG-mediated cognition enhancement might be associated with the activations of Nrf2, ChAT, and ERK signaling cascade.

The Impact of Education-Orientation on Technology Innovation and Company Outcome : Focusing on Korean Companies in China (기업의 교육지향성이 기술혁신과 기업성과에 미치는 영향 : 대 중국 투자 한국기업을 중심으로)

  • Kim, Jung Hoon;Lim, Young Taek
    • The Journal of Society for e-Business Studies
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    • v.19 no.4
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    • pp.231-249
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    • 2014
  • We define $21^{st}$ century as an amalgamation of globalization and localization, or Glocalization. Additionally, due to the increasing supply of smart phones and wide usage of social networking services, the ability to utilize such global and regional information has increased a coperation's competitiveness in its market, and even the business models have evolved from the conventional "production and distribution" to E-commerce, through which either a direct or a non-direct transaction is possible. My hypothesis is that the ability to adapt to this trend is possible through transfer of learning, and consequently, this will have an impact on company's performance. Thus, this thesis analyzes the mid- to the long-term impact of such ability and environmental factors on the performance and technology innovation of Korean companies in China. Ultimately, this study intends to engender a basic foundation for a corporation's management strategy in China. Finally this research focuses on those Korean companies in China only and on the proof of influential factors' impact on technological innovation and technological innovation's impact on those corporations' future performances. Section I is an abstract and section II, the case examines the uniqueness and current status of Korean companies in China identifies the concept and the definition of influential factors such as education-orientation, technological innovation, and performance, and then scrutinizes each factors through a closer look at their past researches. Section III explains the thesis model, the survey's method and target, the thesis, variable factors, the content, and the method of analysis. In section IV, the thesis is proved based on the outcome of the survey. The result in Section V highlights the high comprehension of technological innovation: both education-orientation and technological innovation prove to have a positive (+) correlation with the performance. The vision on education orientation proves to have a positive (+) influence on technological innovation. The vision on education-orientation and technological innovation prove to have a positive (+) influence individually on company's performance.