• 한국조리학회지
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• 제23권8호
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• pp.195-205
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• 2017

The purpose of this study was to compare the Starbucks in South Korea with Starbucks in U.S.A through the semantic network analysis of big data by collecting online data with SCTM(Smart Crawling & Text Mining) program which was developed by big data research institute at Kyungsung University, a data collecting and processing program. The data collection period was from January 1st 2014 to December 7th 2017, and packaged Netdraw along with UCINET 6.0 were utilized for data analysis and visualization. After performing CONCOR(convergence of iterated correlation) analysis and centrality analysis, this study illustrated the current characteristics of Starbucks for Korea and U.S.A reflected by the social network and the differences between Korea and U.S.A. Since the Starbucks was greatly developed, especially in Korea. this study also was supposed to provide significant and social-network oriented suggestions for Starbucks USA, Starbucks Korea and also the whole coffee industry. Also this study revealed that big data analytics can generate new insights into variables that have been extensively studied in existing hospitality literature. In addition, implications for theory and practice as well as directions for future research are discussed.

• 한국대기환경학회지
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• 제29권1호
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• pp.105-115
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• 2013

The Korean government amended the Environmental Technology and Industry Support Act to foster the environment industry and support the advancement of domestic environmental companies into overseas markets. The amended act reflects changes in the government's policies on environment related issues. This paper uses outcomes of research conducted on environmental policies in foreign countries and the current status of the domestic environment industry to present long-term strategic plans and measures to support the expansion of environmental companies into the global markets and to vitalize the environment industry at home. The suggestions for assisting domestic companies in making inroads into overseas markets are as follows: building up and expanding cooperative network; fostering promising companies and exports by making the right choices and focuses; diversification of export markets and strengthening supports for development of new customers; promoting supports for winning overseas projects; and developing cooperative projects to respond to climate change in developing countries using the Global Climate Fund (GCF).

• 한국산업융합학회 논문집
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• 제26권6_3호
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• pp.1259-1267
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• 2023

In recent years, as the demand for distributed power has increased, the need for microgrids connected to grid power and renewable power generation sources has emerged. In the case of DC microgrids, reactive power does not occur, and power conversion losses are reduced compared to AC when connecting to the load and power grid[2]. With the revitalization of the DC distribution network industry, various studies and demonstrations of DC microgrids have been carried out. In the case of the recent unit distribution, its stability and effectiveness have been verified through empirical and research analysis. However, there is a lack of empirical tests to prevent chain accidents for the protection of the power grid circuits and the misoperation of the distributed power system caused by individual accidents when connecting various distributed power sources and power grids. In this paper, the operation plan of a stable multi-circuit DC distribution connection for the demonstration site was verified through the protection cooperation and operation algorithm for the stable linkage management of the DC distribution network composed of such a multi-circuit.

• IMMUNE NETWORK
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• 제10권5호
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• pp.145-152
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• 2010

Background: The flowers of Inula japonica (Inulae Flos) have long been used in traditional medicine for the treatment of inflammatory diseases. In the present study, we investigated the anti-inflammatory properties of Inulae Flos Extract (IFE). Methods: The anti-inflammatory effects of IFE against nitric oxide (NO), $PGE_2$, TNF-${\alpha}$, and IL-6 release, as well as NF-${\kappa}B$ and MAP kinase activation were evaluated in RAW 264.7 cells. Results: IFE inhibited the production of NO and the expression of inducible nitric oxide synthase (iNOS) in LPS-stimulated RAW264.7 cells. In addition, IFE reduced the release of pro-inflammatory cytokines, such as TNF-${\alpha}$ and IL-6. Furthermore, IFE inhibited the NF-${\kappa}B$ activation induced by LPS, which was associated with the abrogation of $I{\kappa}B-{\alpha}$ degradation and subsequent decreases in nuclear p65 and p50 levels. Moreover, the phosphorylation of ERK, JNK, and p38 MAP kinases in LPS-stimulated RAW 264.7 cells was suppressed by IFE in a dose-dependent manner. Conclusion: These results suggest that the anti-inflammation activities of IFE might be attributed to the inhibition of NO, iNOS and cytokine expression through the down-regulation of NF-${\kappa}B$ activation via suppression of $I{\kappa}B{\alpha}$ and MAP kinase phosphorylation in macrophages.

• 한국경제지리학회지
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• 제19권4호
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• pp.677-693
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• 2016

본 연구에서는 부가가치 무역 데이터를 이용하여 세계무역 네트워크 내의 구조를 분석하였다. 그 주요 결과를 요약하면 다음과 같다. 첫째, 부가가치 무역에 있어서 주요 산업은 다음 세 가지 유형이다. 여기에는 중국 등 개도국의 전자산업, 미국과 영국의 R&D 산업, 독일의 자동차, 화학, 기계 산업 등이 해당된다. 즉, 개도국의 조립형 제조업, 미국 등 선진국의 R&D 산업, 독일과 같은 선진국의 첨단 제조업이 포함된다. 둘째, 주요 산업이 글로벌 허브 산업으로 기능하는 유형은 상이하다. 특히, 미국의 서비스산업인 도소매, 물류, R&D 산업 등은 순회자와 연락자가 매우 강하게 나타나며 그 지위를 지속적으로 유지하고 있다는 것이다. 셋째, 중개자 측면에서 한 중 일 3국 주요 산업을 진단하면 한국의 대부분 산업은 중국과 일본에 압도되고 있다. 그러나 순회자 역할에서 금융산업과 R&D 산업은 중국과 일본보다 각각 우위에 있다. 이러한 점에서 서비스산업의 진일보한 개방정책이 한국 산업의 중개자 역할을 강화할 것으로 전망된다.

• 한국산업융합학회 논문집
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• 제21권5호
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• pp.247-255
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• 2018

In this research, the effect of normal load, sliding velocity, and texture density on thefriction coefficient of surfaces micro-textured on AISI 4140 under paraffin oil lubrication were investigated. The predicted tribological behavior by numerical calculation can be serves as guidance for the designer during the machine development stage. Therefore, in this research friction coefficient prediction model based on response surface methodology (RSM), support vector machine (SVM), and artificial neural network (ANN) were developed. The experimental result shows that the variation of load, speed and texture density were influence the friction coefficient. The RSM, ANN and SVM model was successfully developed based on the experimental data. The ANN model can effectively predict the tribological characteristics of micro-textured AISI 4140 in paraffin oil lubrication condition compare to RSM and SVM.

• STI Policy Review
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• 제4권1호
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• pp.54-73
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• 2013

In a knowledge economy, accelerating the pace of knowledge building and the rapid acquisition of knowledge are keys to innovative development. However, the development of the commercialization of research results and formation of new start-up companies are often not as active as they should be with a lack of motivation and incentive being one of the contributing factors for the failure to take action. In Taiwan and Japan, the reason that widely advocated idea of industry-academia collaboration is to help advance the technological capabilities of research and development as well as produce economic benefit. The assistance rendered by the government during the transformation and the assessment of outcomes from entrepreneurial pursuits are key issues explored in this study. The results indicate that the network system in the national innovation system is important for entrepreneurship development. The domestic market of Taiwan is not as large as Japan and new entrepreneurs have to face global market challenges.

• 전자통신동향분석
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• 제35권2호
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• pp.89-103
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• 2020

Knowledge of the technology, characteristics, and market trends of the latest CPUs used in smartphones, computers, and supercomputers and the research trends of leading US university experts gives an edge to policy-makers, business executives, large investors, etc. To this end, we describe three topics in detail at a level that can help educate the non-majors to the extent possible. Topic 1 comprises the design and manufacture of a CPU and the technology and trends of the smartphone SoC. Topic 2 comprises the technology and trends of the x86 CPU and supercomputer, and Topic 3 involves an optical network chip that has the potential to emerge as a major semiconductor chip. We also describe three techniques and experiments that can be used to implement the optical network chip.

• 전자통신동향분석
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• 제35권2호
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• pp.120-136
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• 2020

Knowledge of the technology, characteristics, and market trends of the latest CPUs used in smartphones, computers, and supercomputers and the research trends of leading US university experts gives an edge to policy-makers, business executives, large investors, etc. To this end, we describe three topics in detail at a level that can help educate the non-majors to the extent possible. Topic 1 comprises the design and manufacture of a CPU and the technology and trends of the smartphone SoC. Topic 2 comprises the technology and trends of the x86 CPU and supercomputer, and Topic 3 involves an optical network chip that has the potential to emerge as a major semiconductor chip. We also describe three techniques and experiments that can be used to implement the optical network chip.

• 전자통신동향분석
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• 제35권2호
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• pp.104-119
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• 2020

Knowledge of the technology, characteristics, and market trends of the latest CPUs used in smartphones, computers, and supercomputers and the research trends of leading US university experts gives an edge to policy-makers, business executives, large investors, etc. To this end, we describe three topics in detail at a level that can help educate the non-majors to the extent possible. Topic 1 comprises the design and manufacture of a CPU and the technology and trends of the smartphone SoC. Topic 2 comprises the technology and trends of the x86 CPU and supercomputer, and Topic 3 involves an optical network chip that has the potential to emerge as a major semiconductor chip. We also describe three techniques and experiments that can be used to implement the optical network chip.