Skin Wound Healing Effects and Action Mechanism of Acai Berry Water Extracts

Kang, Mi Hyun,Choi, Seunghye,Kim, Bae-Hwan Korean Society of ToxicologyKorea Environmental Mu 2017 Toxicological Research Vol.33 No.2

The purpose of this study was to investigate the wound healing effect of acai berry water extracts (ABWE) and a possible underlying mechanism involved in its action using various in vitro and in vivo models. The wound healing effect of ABWE was evaluated by migration assay using HS68 fibroblast cells. In addition, its effect on mRNA expression of procollagen, fibronectin, and MMP-1 was determined. Moreover, the wound healing effect of ABWE was evaluated in in vivo wound models through macroscopic and microscopic observation. In addition, mRNA expression levels of wound related genes were determined. Results revealed that ABWE was not cytotoxic. It increased migration of HS68 fibroblast cells. ABWE increased mRNA expression levels of fibronectin but decreased the mRNA expression levels of MMP-1. ABWE also showed significantly potent wound healing effect in vivo based on macroscopic and histopathological observation and mRNA expression evaluation for wound related genes. Taken together, our results indicated that ABWE might have potential as a wound healing agent.

중국팬들의 한국과 중국 아이돌 그룹 팬덤 구성과 활동 방식 비교연구

강복(Kang Fu),손승혜(Seunghye Sohn) 한국여성커뮤니케이션학회 2018 미디어, 젠더 & 문화 Vol.33 No.2

한국의 아이돌 그룹에 열광해온 중국팬들이 이제 자국 아이돌 그룹의 성장에 따라 새로운 방식의 팬덤을 형성하고 있다. 이 연구는 중국팬을 대상으로 한국과 중국 아이돌 그룹 팬덤 구성과 활동 방식을 비교해 그 공통점과 차이점을 알아보기 위해 질적 연구 방법인 근거이론을 활용하였다. 이를 위해 중국의 대표적 아이돌 그룹 TFBOYS의 팬카페 멤버 31명과 한국의 대표적 아이돌 그룹 BTS 팬카페 멤버 88명을 대상으로 인터뷰와 온라인 설문을 실시하고, 수집된 자료를 개방코딩, 축코딩, 선택코딩의 단계를 거쳐 분석하였다. TFBOYS 팬들과 BTS 팬들은 일정한 통로를 통해 중심활동인 ‘팬생 즐기기’에 참여하며, 경제적, 시간적 여유라는 중재적 조건과 다양한 유형의 시간, 감정, 경제적 헌신이라는 작용과 상호작용을 통해 팬덤 활동을 경험한다는 점에서 공통점을 갖는다. 그러나 팬덤 활동을 통해 TFBOYS 팬들은 ‘국민 아이돌 키워내기와 자랑하기’와 ‘스타와 친해지는 새로운 경험 쌓아가기’를, BTS 팬들은 ‘다른 문화를 서로 나누며 익숙해지기’와 ‘음악으로 힐링받고 감사하기’를 추구한다는 점에서 차이를 보였다. 중국 수용자들은 새롭게 부상하는 중국 아이돌 그룹의 팬덤 활동을 통해 민족적인 자부심과 중국 문화산업에 대한 자신감을 표현하고 있음을 확인할 수 있었다. 이처럼 두 아이돌 그룹의 팬덤은 공통점에도 불구하고, 사회적, 문화적 배경을 반영하는 차이를 보여주어, 향후 한류의 글로벌 팬덤 형성 방식과 활동에 관한 중요한 이해를 제공하고 있다. Chinese fans, having been excited about Korean idol groups, are now forming a new type of fandom based on the growth of Chinese idol groups. This research compares the fandom compositions and activities of Chinese fans of Korean and Chinese idol groups, using the qualitative research method of grounded theory. For this goal, we conducted interviews and online surveys with the TFBOYS and BTS fan café members and analyzed the data with open coding, axial coding, and selective coding. The fans of TFBOYS and BTS share the experience that develop through ‘enjoying fan life’ where they participate in proactive fandom activities through certain channel, contextual conditions such as capability in finance and time, and action and interaction through emotional and financial devotion. However, the fandom activities differ in that TFBOYS fans seek ‘to raise and pride oneself on a national idol’ and ‘to enjoy the new experience of being close to celebrities,’ while BTS fans seek ‘to share and be familiar with different cultures’ and ‘to be consoled and thankful through music.’ Despite certain similarities, the two fandoms demonstrate differences that reflect social and cultural differences, thus offering important understanding on global fandom composition and activities of Hallyu. This research also confirms that Chinese fans express national pride and confidence in Chinese cultural industry through fandom activities of rising Chinese idol groups.

중국 문헌에 나타난 한류 관련 자료 톤과 프레임의 통시적 변화 2000∼2014년 중국 신문과 정기간행물 제목 분석

손승혜 ( Seunghye Sohn ),이귀옥 ( Guiohk Lee ),강필임 ( Pilyim Kang ) 문화방송 2016 방송과 커뮤니케이션 Vol.17 No.4

이 연구는 지난 15년 동안 한류에 관해 중국에서 발표된 정기간행물 자료와 신문 기사 중 중국 내 공식 문헌 정보 검색 자료원인 cnki.net에 등재된 자료를 표집해 연도별 빈도와 특성의 변화 추이를 분석하였다. 중국은 한류의 형성과 발전에서 가장 중요한 문화적·경제적 영향력을 행사해왔으며, 향후 한류의 확장에 따른 수용국 연구에서도 매우 중요한 의미를 갖는다. 중국 한류 연구의 양적·질적 증가에도 불구하고 중국 사회 전체의 한류 수용에 관한 통시적 의미의 분석은 여전히 부족하다. 수집된 총 1203개의 문헌 자료의 제목을 분석한 결과, 2000년부터 본격적으로 등장한 한류 관련 문헌은 2000년대 중반과 2014년에 가장 높은 빈도로 발표된 것으로 나타났다. 논의의 대상이 되고 있는 콘텐츠 및 관련 산업 분야, 제목의 톤과 프레임 분석 결과는 중국 내 한류 관련 자료가 신문과 학술 자료라는 유형별로 차이가 있었으며, 그 특성은 시기별로 변화하는 추이를 보여주었다. 이러한 변화는 중국의 문화 정책과 미디어 환경 변화, 특정 한류 콘텐츠의 진출 등을 포함한 다양한 변인의 영향을 받아왔을 것으로 유추할 수 있다. 이 분석을 통해 중국 사회가 한류를 어떻게 수용하고, 한류를 통해 중국 대중문화가 어떠한 변화를 추구하고 있으며, 궁극적으로 어떠한 정책적·경제적·사회적 방향을 지향하고 있는지 맥락을 고려한 통시적 이해가 가능할 것으로 기대한다. The study investigated the trends in the titles of major newspapers and academic publications on Hallyu(Korean Wave) published in China between 2000 and 2014. The data, retrieved from the Chinese official archive, cnki.net, showed the changing patterns in terms of volume and characteristics. From the beginning, China has had a formidable impact on the introduction and development of Hallyu and been the most significant research site in its understanding from both cultural and economic perspectives. However, in spite of the advances in Hallyu research in terms of quality and quantity, the diachronic analysis of Hallyu reception in the Chinese society in general is scarce. This research analyzed the titles of 1,203 newspapers articles and academic publications. Hallyu was first introduced in 2000 and had the highest interest given in 2003-2006 and 2014. At the early stage of Hallyu, `electronics industries`, `music` and `movie` received relatively high attention, then the interest expanded to `drama` and `fashion/cosmetics` industries. Frames of titles also moved from `economics` and `comparisons/competition` to `culture` and `diplomacy/exchange`. Since 2010, when China started to use Hallyu as a policy model for its cultural industries, `policy` frames have become a major frame of the Hallyu discourses. `Negative/criticism` tone was observed most often between 2004 and 2006, which coincides with the popularity of specific Hallyu content and changes in the Chinese media environment as well as the Chinese cultural policies. While academic publications remain in mostly `neutral` tone, newspapers show relatively more `negative/criticism` tone. The findings of this research illustrate how the Chinese society in general receive the Hallyu content and what directions the Chinese popular culture pursues in economic, social and policy perspectives.

A Genetic Algorithm Based Form-finding of Tensegrity Structures with Multiple Self-stress States

Lee, Seunghye,Lee, Jaehong,Kang, Joowon Informa UK (TaylorFrancis) 2017 JOURNAL OF ASIAN ARCHITECTURE AND BUILDING ENGINEE Vol.16 No.1

Extraction of Saccharina japonica Ingredients Using Pulsed Electric Fields for Value Generation from Marine Biomass

Byeongwoo Ko,Seunghye Kang,Minho Kim,Mangi Cho,Antonio Delgado,Alexander Jahn 한국산업식품공학회 2020 학술대회 및 심포지엄 Vol.2020 No.11

Currently, domestic seaweed production is about 800,000 tons per year, which is the largest seaweed production in the world after China and Japan. However, most seaweeds (Pyropia ssp, Undaria pinnatifida, Saccharina japonica, etc) are consumed in the form of dried products or hot water extracts, and there are many difficulties in developing various products due to difficulties in the manufacturing process. Through the pulsed electric field treatment device, the extraction efficiency can be expected to increase compared to the convectional hot water extraction. Pulsed electric field technology is a non-heating treatment technology in which high-voltage electric energy is processed into cells in the form of pulses, affecting the potential difference of cell membranes, and performing collapse or perforation treatment. In this study, components such as protein and carbohydrate content were extracted by treating Saccharina japonica with PEF, and compared with the hot water extraction method, As a result of experiment at voltages of 0.7 and 1.5㎸ and pulse duration of 5㎲, the crude protein content increased by up to 42% and the sugar content increased by up to 30% compare to the hot water extraction. Higher efficiency results can be expected through optimization of several parameters that may affect the extraction process.

Skin Wound Healing Effects and Action Mechanism of Acai Berry Water Extracts

Mi Hyun Kang,Seunghye Choi,Bae-Hwan Kim 한국독성학회 2017 Toxicological Research Vol.33 No.2

The purpose of this study was to investigate the wound healing effect of acai berry water extracts (ABWE) and a possible underlying mechanism involved in its action using various in vitro and in vivo models. The wound healing effect of ABWE was evaluated by migration assay using HS68 fibroblast cells. In addition, its effect on mRNA expression of procollagen, fibronectin, and MMP-1 was determined. Moreover, the wound healing effect of ABWE was evaluated in in vivo wound models through macroscopic and microscopic observation. In addition, mRNA expression levels of wound related genes were determined. Results revealed that ABWE was not cytotoxic. It increased migration of HS68 fibroblast cells. ABWE increased mRNA expression levels of fibronectin but decreased the mRNA expression levels of MMP-1. ABWE also showed significantly potent wound healing effect in vivo based on macroscopic and histopathological observation and mRNA expression evaluation for wound related genes. Taken together, our results indicated that ABWE might have potential as a wound healing agent.

공유수면의 개념과 법 적용의 문제 - 내륙 공유수면을 중심으로-

강남희(Namhee Kang),정명국(Myeongguk Jeong),심승혜(Seunghye Sim) 한국해양환경·에너지학회 2023 한국해양환경·에너지학회 학술대회논문집 Vol.2023 No.05

중국의 학술문헌을 통해 본 중국한류 15년

이귀옥(Guiohk Lee),손승혜(Seunghye Sohn),강필임(Pilyim Kang) 한국여성커뮤니케이션학회 2016 미디어, 젠더 & 문화 Vol.31 No.1

본 연구는 한류의 핵심수용국인 중국에서 한류에 대한 관심이 어떻게 변화했는가를 점검하기 위하여 2000년에서 2014년까지 발표된 한류 관련 학술문헌의 시기별, 학문분야별 양과 연구주제를 분석하였다. 한류확산기, 한류저항기, 신한류기로 시기를 구분하여 지난 15년 동안 중국내 한류관련 연구의 변화를 점검한 결과, 중국내 한류는 시기별 관점의 변화를 반영하면서 양과 연구주제에서 변화를 보였다. 양적으로는 2000년부터 지속적인 증가를 보이다가, 중국한류의 정체기인 2000년대 중반에 학술연구의 양이 오히려 급증했다. 학술연구 분야로는 ‘철학과 인문과학’과 ‘경제와 관리과학’분야가 한류연구의 두 축을 이루고 있었다. 학술문헌의 키워드에 대한 언어네트워크분석을 실시한 결과, 한류확산기인 2000년대 초반에는 한류현상 자체와 한국영화, 드라마 등의 키워드들을 중심으로 상호연결되어 있었다. 한류저항기에는 한류를 주도한 문화산업 관련 키워드들이 언어네트워크 중심에 위치하였다. 신한류기에는 한국브랜드, 패션산업, 한국음악 같은 키워드들이 핵심단어로 나타났다. 본 연구결과는 특정 수용국내에서 한류는 고정되지 않고 수용국가의 경제, 문화적 변화와 상호작용하면서 지속적으로 변화하고 있음을 실증적으로 보여주고 있다. The study investigated the changes of academic discourse on Hallyu (Korean Wave) in China, the largest consumer of Korean Wave, from 2000 to 2014. For this purpose, academic literature on Korean Wave was collected from cnki.net, a Chinese academic database. The amount and topics of Hallyu-related studies in China reflected the changes in the perspectives to Hallyu from 2000 to 2014. ‘Philosophy & Humanities’ and ‘Economics & Management’ were identified as the two main fields where Hallyu was actively studied. Also, a semantic network analysis for the keywords in the literature revealed that during the diffusion period of 2000-2004, the Hallyu-related studies were connected to a few research keywords such as ‘Hallyu,’ ‘Korean,’ and ‘Korean drama.’ The research keywords were rapidly expanded to various topics including the keywords ‘culturanl products’ and ‘cultural industry’ during the antipathy periods of 2005-2009. In the new Hallyu period of 2010 to 2014, the main keywords were changed to ‘brand,’ ‘Korean company,’ and ‘K-pop.’ Based on these findings, the academic and managerial implications were discussed.

Bending and free vibration analyses of in-plane bi-directional functionally graded plates with variable thickness using isogeometric analysis

Lieu, Qui X.,Lee, Seunghye,Kang, Joowon,Lee, Jaehong Elsevier 2018 COMPOSITE STRUCTURES -BARKING THEN OXFORD- Vol.192 No.-

<P><B>Abstract</B></P> <P>This article is firstly concerned with bending and free vibration analyses of in-plane bi-directional functionally graded (IBFG) plates with variable thickness in the framework of isogeometric analysis (IGA). The plate thickness is smoothly altered in both <I>x</I>- and <I>y</I>-axes by a predetermined power law. Two types of power-law material models with the symmetrical and asymmetrical volume fraction distribution are suggested to characterize the in-plane material inhomogeneity. A non-uniform rational B-spline (NURBS) surface for simultaneously representing both variable thickness and volume fraction distribution of each constituent is employed. By using the k -refinement strategy, the <SUP> C 0 </SUP> -continuous requirement at symmetrical material interfaces can be achieved, yet still ensuring material gradations elsewhere owing to the prominent advantage of NURBS basis functions in easily controlling continuity. Effective material properties are then evaluated by either the rule of mixture or the Mori-Tanaka scheme. An analysis NURBS surface separately created with the foregoing NURBS surface is utilized to exactly describe geometry and approximately solve unknown solutions in finite element analysis (FEA) based on the IGA associated with a generalized shear deformation theory (GSDT). The Galerkin <SUP> C 1 </SUP> -continuous isogeometric finite element model is therefore simply achieved due to the possibility of flexibly meeting high-order derivatives and continuity of analysis NURBS functions. In addition, no shear correction factors exist in the present formulation, although shear deformation effects are still considered. The influences of variable thickness, material property, length-to-thickness ratio, boundary condition on bending and free vibration responses are investigated and discussed in detail through several numerical examples.</P>

눈부신 안부: Face2Speech 기반 독립운동가 목소리 추정

김지영(Jiyeong Kim),이승혜(Seunghye Lee),강지수(Jisu Kang),정다샘(Dasaem Jeong) 한국HCI학회 2024 한국HCI학회 학술대회 Vol.2024 No.1