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A colorimetric sensor using back titration for toxic gases
남지혜,강영종 한국공업화학회 2016 한국공업화학회 연구논문 초록집 Vol.2016 No.1
Colorimetric gas sensor system has been developed to identify the presence of toxic gases. The commercially available sensing system employs electrochemical cell, which are expensive, and demands bulky auxiliary instruments and high power consumption. To overcome these drawbacks of the existing technology, we have developed colorimetric sensors for detecting toxic gases. As an important application of our sensor system, we demonstrate that our dye systems use acid-base back titration. The chemosensor is used to develop a test paper for detection of methylamine gas in the solid state.
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남지혜,황재우,윤화영,최민철,윤정희 한국임상수의학회 2020 한국임상수의학회지 Vol.37 No.6
Contrast-enhanced ultrasonography (CEUS) has been applied to evaluate parenchymal organs in human and veterinary medicine. However, to our knowledge, there is no report on the identification of active bleeding and the bleeding site in veterinary clinical patients. Herein, we describe the use of CEUS in two cases of abdominal bleeding caused by ruptured lesions with malignant abdominal tumors. One dog had a splenic hemangiosarcoma, which had metastasized to the liver; the other dog had hepatic cell carcinomas in the left hepatic lobe, which were lobectomized, and another nodule was identified in the right hepatic lobe. Immediately after the rupture of these oncogenic lesions was suspected, CEUS was performed to identify the bleeding sites. The active bleeding sites were confirmed by hyperechoic pooling signs in the arterial phase, and extravasation could be observed within the defects showing hypoechoic perfusions in the delayed phase of the CEUS. Microbubbles were also observed in the ascites; thus, CEUS could detect the presence of hemorrhage and accurately identify the bleeding site. Collectively, the study findings suggest the usefulness of CEUS in emergent situations as it enables rapid and noninvasive evaluation of bleeding points in case of active bleeding in dogs.
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코로나 19, 마이스 산업의 구조적 분석과 언택트 컨벤션의 활성화 방안
남지혜 동북아관광학회 2020 동북아관광연구 Vol.16 No.4
With the outbreak of the novel coronavirus (Covid-19) around the world, the global economic crisis has begun, causing consumption downturn in economic terms.In particular, the environment of the domestic convention industry is greatly shrinking. In-depth discussion is needed to check and respond to structural changes in the convention industry. This study investigated the current status and structure of the domestic convention industry under the basic proposition of securing competitiveness of the domestic convention industry due to the low level of awareness and utilization of meeting technology by domestic organizers and planners, and insufficient actual use cases. This study that the role of Untact Convention in the government support policy of domestic organizers and convention industry, and through this study, it is possible to take a leap forward one step within a short period of time by grasping the key competitive factor strategies of the Untact Convention industry. It aims to present a plan. This means that in order to secure the competitiveness of the convention industry in Korea and acquire the added value of the convention market that will be created in the Northeast Asian market in the future, and to establish the convention industry as a core industry of the country, domestic convention companies can provide untouch conventions away from the conventional operating mode. Securing strong international competitiveness is an urgent task. 전 세계적으로 신종 코로나 바이러스(Covid-19)가 발생함에 따라 경제적인 측면에서도 소비 침체가 발생하는 글로벌 경제위기가 시작되었다. 이로 인해 국내 마이스 산업의 환경이 크게 위축되고 있다. 마이스 산업의 구조적 변화의 점검 및 대응을 위한심도 있는 논의가 필요하다. 국내 마이스 산업의 경쟁력 확보라는 기본명제 하에 국내마이스 산업의 현황과 구조를 파악하였다. 마이스 산업의 정부지원정책에 대한 언택트컨벤션의 역할과 필요성을 도출하고, 언택트 컨벤션의 핵심경쟁요인전략을 파악하였다. 본 연구는 우리나라 마이스 산업의 경쟁력 확보와 향후 동북아 시장에서 창출될마이스 산업의 부가가치를 획득하고, 국가의 핵심 산업으로 자리 잡기 위해서는 기존의 운영 형태에서 벗어나 기술분야와 전략적 제휴를 맺어 언택트 컨벤션을 발전시켜국제 경쟁력 강화에 있어 무엇이 필요하며 추후 나아가야 할 방향에 대해 알아보고자한다.
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Peptide Synthesis on Polyethylene glycol grafted Polystyrene Resins for Biomolecule Binding Study
남지혜,신동식 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.1
Peptides can be considered as a part of biomolecule binding proteins such as antibodies, lectins, and so on. Solid Phase Peptide Synthesis (SPPS) method can be utilized for the generation of a large quantity of library. To identify peptide sequence on solid support, the peptide should be released from the resin. Here we tried to synthesize peptides on solid supports for efficient identifying the peptide sequence to bind biomolecules. The specific peptide sequences were synthesized and then the peptide sequences of the beads were analyzed by MALDI-TOF MS after photolysis. In the future, this method will be used to determine unknown peptide sequences binding specific biomolecules.
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양측성 구순구개열 환자의 이차적 비성형술과 필러를 이용한 입술 증강술 치험례
남지혜,이의룡,최원철 대한구순구개열학회 2017 대한구순구개열학회지 Vol.20 No.2
We report the case of a bilateral cleft lip 22-year-old woman who presented short columella, depressed and flap nasal tip, and low volume of upper lip. We simultaneously performed secondary rhinoplasty and hyaluronic filler insertion into upper lip. Using hyaluronic filler, symmetry and augmented volume of upper lip were achieved. Cartilage graft was carried out for columellar lengthening and nasal tip projection. This case demonstrates that hyaluronic fillers can be successfully used in the treatment of postoperative scars to achieve fullness of upper lip with secondary rhinoplasty.
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Evaluation of DNA Binding Affinity with Polymer Supported Peptides
남지혜,전영은,신동식 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.0
It is important to identify chromosomal pattern which affects biological mechanism such as cell growth or cell signaling by modulating protein expression. In this study, peptide sequences which are related in DNA binding were synthesized by Solid Phae Peptide Synthesis (SPPS) method. Here we tried to synthesize peptides on solid supports for efficient screening the sequence specificity of binding DNA. The beads were incubated in the solution of fluorescently labeled DNA and then the peptide sequences of the beads were analyzed by MALDI-TOF MS. In the future, this method will be used to determine unknown peptide sequences binding specific DNA fragments.
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프레이트 포워더의 화주 선정요인에 대한 중요성과 만족도(ISA)와 그룹간 비교 연구
남지혜,류희찬,이충배 한국국제상학회 2022 國際商學 Vol.37 No.3
본 연구는 실화주 기업의 포워더 선정요인을 도출하고 이들 요인에 대하여 포워더와 실화주 간 중요도와 만족도를 상호 비교 분석하여 포워더의 경쟁력 제고를 위한 시사점을 제시하는 것을 목적으로 한다. 포워더와 실화주를 대상으로 설문조사를 실시하여 총 123부를 확보하였으며 수집된 자료를 바탕으로 t-검정을 통해 포워더 그룹과 실화주 그룹별 중요도와 만족도의 차이를 통계적으로 검증하였다. 연구결과 실화주의 포워더 선정에 가장 중요한 요인으로 비용, 일반 서비스, 부가서비스, 기업 요인의 순으로 분석되었다. 중요도와 만족도의 차이 검정에서는 대부분의 요인이 통계적으로 유의한 차이가 있는 것으로 나타났다. 결론적으로 실화주의 포워더 선정요인에서 해상운임 경쟁력, 운임협상 가능성, 글로벌 네트워크 구축 등 비용적 요인이 가장 중요한 것으로 나타나 포워더의 경쟁력을 높이기 위해서는 운임 인하를 위한 집중적인 노력이 필요하다.
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