Effects of Chrysanthemum morifolium(CM) Extract on The Synthesis of Basement Membrane Proteins of Madin-Darby Canine Kidney Cells

JE ON Hoon,JEON Sora,KO Seonghoon,LEE Seyeon,JO Minkyung,NA Hojeong,BU Youngmin,LIM Jongpil 대한약학회 2006 大韓藥學會 總會 및 學術大會 Vol.2006 No.2

Equisetum hiemale Inhibits Inflammatory Responses in PMA and A23187 induced HMC-1 cells

NA Hojeong,BU Youngmin,JEON Hoon,CHA Dongseok,JEON Sora 대한약학회 2006 大韓藥學會 總會 및 學術大會 Vol.2006 No.2

텍스트 마이닝을 활용한 관광기반형 장소마케팅 전략에 관한 연구 - 목포시 원도심을 사례로 -

전소라(Jeon, Sora),정봉현(Jeong, Bonghyun) 한국지역사회학회 2020 지역사회연구 Vol.28 No.3

본 연구의 목적은 ‘관광기반형 장소마케팅’의 개념을 정립하고, 텍스트 마이닝을 활용해 관광기반형 장소마케팅의 전략을 도출하는 것이다. 먼저, 문헌연구를 기초로 관광기반형 장소마케팅의 개념을 정립하자면, 특정 장소가 관광객 또는 잠재관광객의 욕구에 따라 자신의 특성을 살린 전략을 펴고, 매력적인 장소이미지를 창출함으로써 관광객의 흥미와 관심을 유발해 그들로 하여금 관광목적지로서 방문·선호될 수 있도록 유도하는 장소경쟁 시장에서의 발전수단 내지 성장전략이라 할 수 있다. 그 다음, 장소마케팅 전략을 현실화하기 위한 기법적 보완 차원에서 텍스트 마이닝을 활용해 목포시 원도심의 장소마케팅 실태를 분석하였으며, 다음과 같이 장소마케팅 전략을 제시하였다. ➀ 근대역사문화를 활용한 관광상품화(다크투어리즘), 신중한 접근과 사회적 합의의 필요, ➁ 기존 산업에 역사·문화적 자산과 아이디어를 결합한 새로운 경제기반 구축, 유휴자원(공가)의 가치 재창출, ③ 체험·학습·교육 등 신규 수요에 대한 대응 및 세분시장 창출, ④ 관광정보 및 통계 데이터의 확대, 이에 기초한 마케팅 활동 전개, ⑤ 원도심과 인근 환경자산, 교통시설 간의 공간적·기능적 연계, ⑥ 다양한 영역과 수준에서 주민참여의 확대 등이다. 본 연구는 장소마케팅 가운데 가장 중점적으로 논의 되고 있는 관광분야를 심화 연구했다는 점, 현장의 문제를 직접적으로 반영한 개선안을 제공했다는 점에서 의의가 있다고 여겨진다. The purpose of this study is to establish a theory of tourism-based place marketing, and to analyze tourism-based place marketing strategies using text mining. Accordingly, this study analyzed academic discussions related to place marketing, and synthesized concepts based on prior research. The results of the study are summarized as follows. First, based on the result of qualitative analysis, tourism-based place marketing was defined as the implementation of regional development policies through tourism administration. In other words, a specific place is the process of creating an attractive place image through strategies that utilize their characteristics to attract tourists. The goal is for the place to be selected as a tourist destination and to realize regional development. Second, the tourism-based place marketing strategy for the revitalization of the original city center in Mokpo is ➀ development of tourism products such as dark-tourism utilizing modern history and culture, ➁ establishing a new economic base through the combination of historical and cultural assets and ideas, re-creating the value of empty spaces, ③ responding to new demands such as education and experience, ④ expanding accurate tourist information and statistical data, ⑤ strengthening connectivity with transportation facilities, development of tourism courses in connection with environmental resources, and functional connection with surrounding core facilities, ⑥ activation of citizen"s participation. This study conducted an in-depth study of place marketing and a policy study in the tourism sector. On the other hand, further research needs to consider regional variables for a detailed strategy of tourism-based place marketing, and to proceed differentially, because problems in cities and regions cannot be solved en bloc.

천공과 유동 가이드를 활용한 방사형 히트싱크의 자연대류 열전달 향상에 관한 연구

전소라(Sora Jeon),이빈(Bin Li),변찬(Chan Byon) 대한기계학회 2016 大韓機械學會論文集B Vol.40 No.5

본 연구에서는 천공과 유동 가이드를 활용한 방사형 히트싱크의 자연대류 열전달 향상에 관해 수치적으로 탐구하였다. 천공과 침니 기반의 유동 가이드를 활용한 개선된 형상의 방사형 히트싱크의 성능을 평가하고, 기존의 방사형 히트싱크와 열 성능을 비교하였다. 연구 결과, 천공형 히트싱크는 연구범위 내에서 천공의 개수와 직경이 클수록 열 성능이 좋아짐을 알 수 있었다. 침니 기반의 유동 가이드를 활용한 히트싱크에 대해서는, 핀의 개수, 침니와 바닥면 사이의 거리의 영향을 분석하였다. 그 결과 핀의 개수와 침니와 바닥면 사이의 거리에 최적화된 값이 있다는 것을 확인할 수 있었다. 또한 히트싱크의 방향이 상 방향(0°)에서 최고의 열 성능을, 측 방향(90°)일 때 최악의 열 성능이 나타나는 것을 알 수 있었 다. 천공형 히트싱크와 최적의 구조를 갖는 유동 가이드를 갖는 히트싱크는 기존의 방사형 히트싱크와 비교하였을 때, 각각 최대 17%, 20% 개선된 열 성능을 가짐을 알 수 있었다. 본 논문은 공학과 관련한 획기적인 아이디어를 제시함으로써 창업기술개발, 벤처 및 기업가정신 함양에도 중요한 의미를 지닐 수 있다. In this study, we numerically investigate the thermal performance of an enhanced radial heat sink with a perforation and chimney structure. We estimate the thermal performance of the enhanced radial heat sink, and compared it with that of a conventional radial heat sink. The results show that the radial heat sink with perforation has a higher thermal performance when either of the diameter and the number of perforations is high. With regards to the radial heat sink with a chimney structure, we investigate primarily the effect of the fin number, and the spacing between the chimney and the base plate on the thermal performance. The results show that there are optimal values for the fin number and the spacing between chimney and base plate. In addition, the enhanced radial heat sinks have maximum thermal performance when facing upward (0°), while it has worst performance when facing sideward (90°). The perforation and chimney are shown to cause thermal performance enhancements of 17% and 20%, respectively, compared with a conventional radial heat sink. The proposed method is useful for starting business, and is useful in terms of venture and entrepreneurship.

장기화된 COVID-19에서 경험한 스트레스가 심리적 고통에 미치는 영향: 사회적 지지의 조절효과

전소라(Sora Jeon),김호영(Hoyoung Kim) 대한스트레스학회 2021 스트레스硏究 Vol.29 No.4

본 연구는 청년, 중년, 장년, 노년에 해당하는 성인 남녀 800명을 대상으로 위계적 회귀분석을 통해 장기화된 COVID-19 상황에서 경험한 직업변화, 수입감소, 가족갈등, 지인갈등이 외상성 고통, 우울, 외로움에 미치는 영향을 살펴보고, 이들의 관계에서 사회적 지지가 조절효과를 보이는 지 확인하였다. 분석결과, 외상성 고통, 우울, 외로움에 영향을 줄 수 있는 요인을 각각 통제했을 때, 사회적 지지는 직업변화나 수입감소가 외상성 고통, 우울, 외로움에 미치는 영향을 완화시키지 못했지만, 대인갈등이 외상성 고통, 우울, 외로움에 미치는 영향은 완화시켰다. 또한 중년층을 제외한 모든 연령층에서 사회적 지지가 대인관계 갈등의 영향을 완화시켰다. 이러한 결과를 토대로 연구에 대한 시사점, 한계 및 제안이 논의되었다. Background: This study investigated the effects of stress events (reduced income, change of jobs, family conflicts, and conflicts with acquaintances) experienced in the prolonged COVID-19 situation on psychological distress (peritraumatic distress, depression, and loneliness). It also tested the moderating effects of social support between them according to the stress-buffering model. Methods: Data was collected from 800 adult men and women, including early adulthood (ages 19∼30), early middle-aged adulthood (ages 31∼45), late middle-aged adulthood (ages 46∼64), and late adulthood (ages 65 and older), via an online survey covering peritraumatic distress, loneliness, depression, and social support. Hierarchical regression analysis was conducted to test the moderating effects of social support. Results: First, reduced income, change of jobs, and interpersonal conflicts experienced during the COVID-19 pandemic were positively associated with peritraumatic distress, depression, and loneliness. However, social support was negatively associated with them. Second, social support had no moderating effects on the impacts of change of jobs and reduced income on peritraumatic distress, depression, and loneliness. It had moderating effects only on the influences of interpersonal conflicts. Finally, the study examined the moderating effects of social support by the age group and found that it mitigated the impacts of interpersonal conflicts in all of the age groups except for the early middle-aged group. Conclusions: These findings demonstrate that social support can mitigate psychological distress due to interpersonal stress in a pandemic situation and imply a need for differentiated intervention according to the different stress-buffering effects of social support according to age groups.

甘菊이 MDCK 세포의 Laminin 합성에 미치는 영향

전훈(Hoon Jeon),나호정(Ho Jeong Na),전소라(Sora Jeon),차동석(Dong Seok Cha),은재순(Jae Soon Eun),임종필(Jong Pil Lim),신태용(Tae Yong Shin),오찬호(Chan Ho Oh),양재헌(Jae Heon Yang),김대근(Dae Keun Kim),임재윤(Jae Yoon Leem),채병숙(Byeo 한의병리학회 2007 동의생리병리학회지 Vol.21 No.3

Improvement of Chronic Bleeding in the Patient with Unresectable Advanced Gastric Cancer Using the Decoction of Notoginseng Radix - a Case Report

Jeon, Hyeonjin,Park, Sora,Lee, Sookyung The Society of Korean Medicine 2016 대한한의학회지 Vol.37 No.2

Objectives: A 74-year-old male patient with unresectable advanced gastric cancer (clinical initial stage T3N+, Borrmann type III) admitted due to gastric bleeding at tumor site. On first admission day, hemoglobin level was 5.7g/dl and performance status was grade 3 according to Eastern Cooperative Oncology Group Performance Status(ECOG-PS). After performing red blood cell transfusion as an emergency treatment, hemoglobin level was increased up to 9.5g/dl. However, bleeding of oozing site was continued. For hemostasis, decoction of notoginseng radix (30g/day) was administered since day 7 after admission. The dose was elevated to 40g/day after hemoglobin level was decreased to 6.5g/dl on day 11. Since then, melena was stopped and hemoglobin level was maintained over 9.1g/dl. This case shows the hemostasis effect of decoction of notoginseng radix on gastric bleeding in unresectable advanced gastric cancer.

Synthesis and Characterization of the Surface Modified SBA-15 with Dicobaltcarbonyl Complex

Sora Park,Yea-sel Jeon,Ki Won Jun,이윤조,한덕영,김형진,황광진 대한화학회 2014 Bulletin of the Korean Chemical Society Vol.35 No.7

Cobalt-immobilized SBA-15 6a-c was synthesized from alkyne-attached SBA 5a-c by the reaction with Co2(CO)8 in toluene. Alkyne group was introduced into amino SBA-15 (4) by imine-linkage or substitution with propargyl bromide to afford iminoalkyne 5a and aminoalkyne 5b, respectively. Meanwhile, alkyne 5c was prepared in one-step by reacting triethoxysilyl hexyne with SBA-15. Dicobalt-complexes 6a-c were characterized by means of FT-IR, solid-state NMR and elemental analysis.

수치적 해석 기법의 차이에 따른 1D CCP simulation 비교

Sora Lee,Dong-Gil Kim,Ye Jin Shon,Yujin Lee,Deuk-Chul Kwon,Jea-Hong Jeon,Hee Hwan Choe 한국진공학회 2019 한국진공학회 학술발표회초록집 Vol.2019 No.8

Very large suspended graphene as an efficient electron-transparent gate electrode

Jeon, Hyojin,Choi, Young Chul,Park, Sora,Kang, Jun-Tae,Go, Eunsol,Lee, Jeong-Woong,Kim, Jae-Woo,Jeong, Jin-Woo,Song, Yoon-Ho Elsevier 2017 Carbon Vol.119 No.-

<P>Although a focused electron beam is required in field emission-based various applications, the electron beam is generally diverged in a conventional triode because the gate has a circular aperture through which the electrons are accelerated to reach the anode. To prevent the beam divergence, a suspended multi-layer graphene (MLG) was fabricated on a very large gate aperture to be used as an electron-transparent gate in a field emission triode. The suspended MLG was observed to have several micro-openings with an average diameter of similar to 5 mu m formed during a transfer. It was observed that the MLG with micro-openings was likely to act as an efficient transparent gate for electrons even with large number of graphene layers, exhibiting a high transmittance of similar to 90%. The solid angles of the beams obtained using conventional gate aperture and suspended MLG gate were 0.225 and 0.074 sr, respectively, indicating that the suspended MLG resulted in a focused electron beam. Simulations confirm that the suspended MLG with micro-openings suppresses the beam divergence in a given triode configuration because the MLG results in the flattened electric field profiles between gate and cathode whereas a distorted potential distribution causing beam divergence occurs around the aperture in a conventional triode. (C) 2017 Elsevier Ltd. All rights reserved.</P>