小兒의 Guillain-Barre 症候群에 對한 臨床的 觀察

閔惠蘭,禹永琮,馬在淅 全南大醫大 1986 전남의대학술지 Vol.23 No.3

항만공사의 마케팅 촉진전략 평가에 관한 연구

마혜민(Ma, Hye-Min),오재균(Oh, Jae-Gyun),여기태(Yeo, Gi-Tae) 한국항만경제학회 2018 韓國港灣經濟學會誌 Vol.34 No.1

본 연구에서는 인터뷰를 통한 실제 항만의 마케팅 전략을 분석하였으며 Fuzzy TOPSIS 방법론을 이용하여 부산항과 비교를 통한 인천항, 평택 · 당진항의 항만별 마케팅 전략을 도출하였다. 선행연구 분석결과, 항만 마케팅 연구는 부산항 등 소수항만에 집중되어 있었고, 현황분석 및 마케팅 믹스를 통한 4P전략을 제시한 연구가 다수였다. 전체 응답자를 종합한 항만 마케팅 전략요소 분석결과, 인센티브 제공이 가장 높은 순위를 기록하였으며 유관기관과 기업 간의 중개역할, 현지 네트워크 구축을 위한 대리인 제도가 그 뒤를 이었다. Fuzzy TOPSIS 분석결과 마케팅 성과가 가장 좋은 항만은 부산항이었다. 민감도 분석 결과 인천항은 유관기관과 기업간의 중개역할, 평택 · 당진항은 인센티브 제공이 가장 민감한 것으로 분석되었다. 본 연구의 시사점은 실제 항만 관리기관의 마케팅 전략이 과거 항만 마케팅 촉진전략과 유사하여 각 항만별 대상 타겟 및 특징을 정확히 설정하여 마케팅 전략을 구사할 필요성이 있음을 제시하였다. This study analyzed specific ports’ marketing strategies through interviews and, using fuzzy TOPSIS methodology, derived marketing strategies for the Incheon and Pyeongtaek-Dangjin ports by comparing them with the Busan port. Previous studies had concentrated on the Busan port, and the majority of these studies analyzed the present conditions and suggested 4P strategies using a marketing mix. After weighting all of the respondents’ answers, the results show that among all marketing strategies, incentive provisions ranked the highest, followed by the intermediary role between the relevant agencies and companies, and last- the agent system for establishing local networks. The fuzzy TOPSIS analysis results showed that the Busan port had the best marketing performance. The most sensitive strategies, based on the sensitivity analysis, were the intermediary role between relevant agencies and companies in the Incheon port, and the incentive provision in Pyeongtaek–Dangjin port. The implications of this study are that the port management agencies’ actual marketing strategies were similar to the marketing promotion strategies suggested by previous research, and thus, each port’s marketing targets and their characteristics should be clearly defined.

키워드 네트워크를 활용한 항만연구 동향분석에 관한 연구

마혜민(Hye min Ma),윤성구(Sun goo Yoon),김형호(Hyung ho Kim),여기태(Gi tae Yeo) 한국국제상학회 2017 國際商學 Vol.32 No.2

본 연구는 키워드 네트워크를 활용하여 항만과 관련되어 국내저널에 게재된 논문을 대상으로 연구동향을 분석하였다. 연구동향 분석을 위해 국내 58개 학회지를 중심으로 589개의 논문을 활용하였으며 2,249개의 키워드를 연구에 사용하였다. 전체 기간은 2007년-2016년까지 10년이며 5년 주기로 나누어 분석하였고 키워드별 연결중심성, 매개중심성, 근접중심성을 도출하여 양적인 관점에서 살펴보았다. 네트워크 중심성 분석결과 2012-2016 기간의 매개중심성을 제외하고 모두 ‘항만경쟁’이 1위를 기록했으며 전체 중심성 분석에서 가장 중요한 항만은 ‘부산항’으로 나타났다. 연결중심성 분석결과 전체 기간과 5년 주기 분석에서 ‘항만경쟁’ 과 ‘컨테이너 터미널’이 각각 1위를 기록하였으며, ‘부산항’, ‘배후단지’ 등이 항만 분야에서 주목을 받았던 연구주제로 나타났다. 매개중심성과 근접중심성 결과 또한 ‘항만경쟁’과 ‘컨테이너 터미널’이 각각 1위로 나타났으며 연결중심성과 마찬가지로 ‘부산항’, 배후단지’ 등이 높은 순위를 기록하였다. 또한 항만 경쟁과 관련되어 있는 ‘서비스 품질’, ‘고객 만족’, ‘항만 선택’ 등이 상위에 나타났다. 모든 분석에서 가장 중요하게 나타난 항만은 ‘부산항’이며, ‘광양항’, ‘인천항’이 뒤를 이었다. Purpose: This paper aims to analyze the research trends of papers on ports published in domestic journals were analyzed using keyword networks. Research design, data, methodology: We apply the SNA(Social Network Analysis) Methodology using the degree, betweenness, closeness centrality. The analysis of research trends utilized 589 papers from 58 domestic societies and 2249 keywords. Results: In the results of the degree, betweenness, closeness centrality analysis, “port competition” and “container terminal” ranked first in the overall period and 5-year analyses respectively, while “Busan port” and “hinterland” were shown to be the research subjects that attracted the most attention in the port sector. In addition, “service quality,” “customer satisfaction,” and “port selection,” which are related to port competition, ranked high. Conclusion: We could measure and confirm that there was some significant result in the network on port from 2007 to 2016. The result of SNA analysis can be used as the basis for the future research. And keyword in 2007-2011 had been changed to the detailed subject in 2012-2016.

Simultaneous determination of nine bioactive compounds in Yijin-tang via high-performance liquid chromatography and liquid chromatography-electrospray ionization-mass spectrometry

Yang, Hye Jin,Yim, Nam-Hui,Lee, Kwang Jin,Gu, Min Jung,Lee, Bohyoung,Hwang, Youn-Hwan,Ma, Jin Yeul Elsevier Science B.V., Amsterdam 2016 Integrative medicine research Vol.7 No.4

<P><B>Background</B></P><P>Yijin-tang (YJ) has been used traditionally for the treatment of cardiovascular conditions, nausea, vomiting, gastroduodenal ulcers, and chronic gastritis. In this study, a simple and sensitive high-performance liquid chromatography (HPLC) method was developed for the quantitation of nine bioactive compounds in YJ: homogentisic acid, liquiritin, naringin, hesperidin, neohesperidin, liquiritigenin, glycyrrhizin, 6-gingerol, and pachymic acid.</P><P><B>Methods</B></P><P>Chromatographic separation of the analytes was achieved on an RS Tech C<SUB>18</SUB> column (4.6 mm × 250 mm, 5 μm) using a mobile phase composed of water containing 0.1% (v/v) trifluoroacetic acid (TFA) and acetonitrile with a gradient elution at a flow rate of 1.0 mL/min.</P><P><B>Results</B></P><P>Calibration curves for all analytes showed good linearity (R<SUP>2</SUP> ≥ 0.9995). Lower limits of detection and lower limits of quantification were in the ranges of 0.03–0.17 μg/mL and 0.09–0.43 μg/mL, respectively. Relative standard deviations (RSDs; %) for intra- and interday assays were < 3%. The recovery of components ranged from 98.09% to 103.78%, with RSDs (%) values ranging from 0.10% to 2.59%.</P><P><B>Conclusion</B></P><P>This validated HPLC method was applied to qualitative and quantitative analyses of nine bioactive compounds in YJ and fermented YJ, and may be a useful tool for the quality control of YJ.</P>

Efficiency Analysis of Port Companies in China Using DEA and the Malmquist Method

Wenjun He,Hye-Min Ma,Gi-Tae Yeo 한국항해항만학회 2017 한국항해항만학회지 Vol.41 No.5

The efficiency of port operations is an important indicator of port development. Moreover, there is excess handling capacity in Chinese ports, which results in a slower speed of development. Under the detrimental environment of the international shipping market, it is necessary to improve the operation efficiency of ports for long-term development. This paper provides an assessment of the competitiveness of Chinese seaport companies using the Boston Consulting Group’s matrix, and efficiency measurements using a data envelopment analysis and the Malmquist method. This analysis showed that highly efficient companies reformed their development strategies, which should be a solution considered by less efficient companies, such as Shenzhen Yan Tian Port Holdings Co., Ltd.. Although, having high throughput should be reformed in the investment structure. This research will assist port companies in gaining effective operating experience, and governments in establishing strategic planning to enhance the efficiency of port development.

Efficiency Analysis of Port Companies in China Using DEA and the Malmquist Method

He, Wenjun,Ma, Hye-Min,Yeo, Gi-Tae Korean Institute of Navigation and Port Research 2017 한국항해항만학회지 Vol.41 No.5

The efficiency of port operations is an important indicator of port development. Moreover, there is excess handling capacity in Chinese ports, which results in a slower speed of development. Under the detrimental environment of the international shipping market, it is necessary to improve the operation efficiency of ports for long-term development. This paper provides an assessment of the competitiveness of Chinese seaport companies using the Boston Consulting Group's matrix, and efficiency measurements using a data envelopment analysis and the Malmquist method. This analysis showed that highly efficient companies reformed their development strategies, which should be a solution considered by less efficient companies, such as Shenzhen Yan Tian Port Holdings Co., Ltd.. Although, having high throughput should be reformed in the investment structure. This research will assist port companies in gaining effective operating experience, and governments in establishing strategic planning to enhance the efficiency of port development.

선 꼬임 방지용 프로브의 모형 제작 및 유용성 평가

권수민(Su-Min Kwon),서재원(jae-Won Seo),조원우(Won-Woo Cho),이현(Hyun Lee),신현규(Hyeon-Kyu Shin),김지혜(Ji-Hye Kim),조인희(In-Hee Jo),변장호(Jang-Ho Byun),김상현(Sang-Hyun Kim),마상철(Sang-Chul Ma) 대한초음파의료영상학회 2018 대한초음파의료영상학회 학술대회 초록집 Vol.3 No.1

Production of disulfide bond-rich peptides by fusion expression using small transmembrane proteins of Escherichia coli.

Chang, Ziwei,Lu, Ming,Ma, Yunqi,Kwag, Dong-Geon,Kim, Seo-Hyun,Park, Ji-Min,Nam, Bo-Hye,Kim, Young-Ok,An, Cheul-Min,Li, Huayue,Jung, Jee H,Park, Jang-Su Springer-Verlag ; Springer 2015 Amino acids Vol.47 No.3

<P>Recombinant expression in Escherichia coli allows the simple, economical, and effective production of bioactive peptides. On the other hand, the production of native peptides, particularly those rich in disulfide bonds, is a major problem. Previous studies have reported that the use of carrier proteins for fusion expression can result in good peptide yields, but few are folded correctly. In this study, two transmembrane small proteins in E. coli, YoaJ and YkgR, which both orientate with their N-termini in cytoplasm and their C-termini in periplasm, were used for fusion expression. The recombinant production of two peptides, asteropsin A (ASPA) and 관-defensin (BD), was induced in the periplasm of E. coli using a selected carrier protein. Both peptides were expressed at high levels, at yields of approximately 5-10 mg/L of culture. Mass spectrometry showed that the resulting peptide had the same molecular weight as their natural forms. After purification, single peaks were observed by reversed phase high-performance liquid chromatography (RP-HPLC), demonstrating the absence of isoforms. Furthermore, cytoplasmically expressed fusion proteins with a carrier at their C-termini did not contain disulfide bonds. This study provides new carrier proteins for fusion expression of disulfide bond-rich peptides in E. coli.</P>

Evaluating the Competitiveness of Container Terminals in Northern Vietnam from perspective of shipping lines

Pham Thi-Yen(범지연),Ma Hye-Min(마혜민),Yeo Gi-Tae(여기태) 한국국제상학회 2016 國際商學 Vol.31 No.4

Purpose : Through an empirical analysis of container terminals in Northern Vietnam, the research aims to provide insights into the competitiveness of container terminals from perspective of shipping lines which are strategically important customers that are increasing bargaining power to decide for a specific a port or terminal of call. Research design, data, methodology : To achieve the study’s objective, surveys relating to shipping lines’perception was conducted in Northern Vietnam and a hybrid of Delphi-Fuzzy-Importance Performance Analysis (IPA) methodology was applied. Results : The results demonstrated that as making decision for terminal selection, shipping lines pay more attention to “natural factors” and “berth depth”, followed by “max L.O.A restriction at berth”, “maximum size of vessel accepted”, “congestion”, and “customs regulation”. Cost considerations are the least concerned in the criteria. Conclusions : Acknowledging the competiveness of container terminals from shipping lines’ perspective to satisfy customers is paramount importance. Basing on findings of the paper, some important implications for both academic and managerial viewpoints are suggested.

이동형 중계 시스템

김지혜(Kim Ji-hye),마유진(Ma Yu-jin),박지민(Bak Ji-min),정다빈(Jeong Da-bin),정은희(Jeong Eun-he),문차홍(Moon Cha-hong),안지은(An Ji-eun),이상운(Lee Sang-un) 한국방송·미디어공학회 2020 한국방송공학회 학술발표대회 논문집 Vol.2020 No.11

COVID-19로 인해 많은 사람들이 다양한 오프라인 활동을 즐기지 못하고 있다. 따라서 포터블 중계 시스템을 이용하여 온택트 시대에 맞는 소통 콘텐츠 제작이 요구되고 있다. 본 논문에서는 방송 송출 프로그램을 이해하고 그를 이용한 CG사용과 크기가 작은 포터블 중계 시스템의 장점을 살려 장소에 제약이 없는 실시간 유튜브 스트리밍 구현을 설계하였다.