토공사 공정관리를 위한 이산형 건설시뮬레이션과 인공신경망 기반 건설성능지표 도출 방법론

정다현 ( Jung¸ Dahyun ),박성봉 ( Park¸ Seongbong ),이수민 ( Lee¸ Sumin ),한승우 ( Han¸ Seungwoo ) 한국건축시공학회 2021 한국건축시공학회 학술발표대회 논문집 Vol.21 No.2

Demands for digital transformation of the construction industry are increasing to improve the accuracy of the construction operation planning and the performance of the construction operation. Even though large number of studies are being conducted to this date, most of the studies are not likely to be available on the real sites. Therefore, this study provides construction managers with a methodology of drawing construction performance indicators based on productivity analysis using Artificial Neural Network (ANN) models and Web-CYCLONE. This methodology is expected to have high utilization and precision of construction operation planning and management.

지역아동센터 이용 아동의 서비스 만족도가 학교생활적응에 미치는 영향: 자아탄력성의 매개효과

박다현 ( Park¸ Da-hyun ),황정하 ( Hwang¸ Jeong-ha ) 한국융합과학회 2021 한국융합과학회지 Vol.10 No.5

연구목적: 본 연구는 지역아동센터 이용 아동의 서비스 만족도가 자아탄력성을 매개로 아동의 학교생활적응에 미치는 영향경로를 구조방정식모델을 통해 검증하는데 목적이 있다. 연구방법: 본 연구의 대상은 전라남도에 위치한 16개 지역아동센터를 이용하는 초등학생 239명을 대상으로 하였다. 수집된 설문자료를 SPSS 25.0과 AMOS 24.0 프로그램을 활용하였으며, 빈도분석, 기술통계분석, 상관분석, 확인적 요인분석, 구조방정식 모형 분석, Sobel test를 실시하였다. 결과: 본 연구의 분석결과는 다음과 같다. 첫째, 지역아동센터 이용 아동의 서비스 만족도가 이들의 학교생활적응에 유의한 영향을 미치는 것으로 나타났다. 둘째, 지역아동센터 이용 아동의 자아탄력성도 학교생활적응에 유의한 영향을 미치는 것으로 나타났다. 셋째, 지역아동센터 이용 아동의 서비스 만족도는 자아탄력성을 매개로 하여 학교생활적응에 유의한 영향을 미치는 것으로 나타났다. 결론: 본 연구 결과에 기초한 결론은 다음과 같다. 첫째, 학교생활적응에 영향을 미치는 지역아동센터 이용 아동의 서비스 만족도를 높이기 위한 아동의 상황이나 특성 및 욕구에 맞는 보다 전문화된 프로그램을 개발하고 시행하는 것이 필요하다. 둘째, 지역아동센터 이용 아동의 자아탄력성을 향상시키기 위해 이들에게 적합한 자아탄력성 개선 프로그램을 개발하고 실시하는 것이 필요하다. 특히 새로운 환경에 대한 성공적인 적응이 요구되는 민감한 시기에 센터 이용아동의 자아탄력성의 중요성을 고려해볼 때, 학년이 바뀌는 학기 초에 관련 프로그램을 적극적으로 운영할 필요가 있다. Purpose: The purpose of this study is to investigate the effects of children's satisfaction with community children’s centers(CCCs)’ services and resilience on their school adaptations. Methods: A total of 239 questionnaires from 16 CCCs in Jeonnam Province were collected and analyzed using both SPSS 25.0 and AMOS 24.0 statistical programs. Result: Firstly, children’s satisfaction with CCCs’ service had significant effects on their school adaptations. Secondly, children’s resilience had also significant effects on their school adaptations. Lastly, it was found that children’s resilience played a significant mediating role in the relationship between children’s satisfaction with local children’s centers’ service and their school adaptations. Conclusion: Firstly, it may be needed to develop and implement programs reflecting on children's situations, characteristics, and needs in order to increase their satisfaction with the services of CCCs which may influence on their school adaptations. Secondly, it is needed to develop and carry out children’s resilience programs in a systematic way. Given the importance of children’s resilience during the transition period of adjustment to a new environment, it may be essential to implement adequate programs actively at the beginning of a semester in a new school year.

브랜디드 콘텐츠 기반의 디지털 광고가 고객 인게이지먼트에 미치는 영향연구

이다현 ( Lee¸ Da-hyun ),김성훈 ( Kim¸ Sung-hoon ) 커뮤니케이션디자인학회 2021 커뮤니케이션 디자인학연구 Vol.77 No.-

디지털 중심의 미디어 매체 다변화로 인해 미디어 소비 환경과 함께 마케팅 방식도 변화하게 되었다. 소비자의 광고회피 현상과 광고 없이 콘텐츠를 이용할 수 있는 서비스의 등장으로 소비자가 광고를 선택하는 시대가 되었으며 이에 대응할 방안 중 하나로 브랜디드 콘텐츠는 브랜드를 콘텐츠에 자연스럽게 녹여내어 브랜드 메시지 전달에 있어 거부감이 적다. 이렇듯 기업이 고객에게 효과적으로 브랜드 가치와 브랜드 메시지를 전달하기 위해서는 고객 로열티를 구축하고 강화하는 것이 핵심이다. 이러한 고객 로열티를 구축하기 위해 고객 인게이지먼트를 활용한 디지털 마케팅이 활성화되어야 한다. 따라서 본 연구는 브랜디드 콘텐츠 기반의 디지털 광고의 발전 방안으로 고객의 로열티를 강화할 수 있는 고객 인게이지먼트의 개념을 통해 브랜디드 콘텐츠를 분석하고 그 방향을 제시하고자 하였다. 먼저 브랜디드 콘텐츠에 대한 개념과 특성에 대해 고찰하였으며 콘텐츠 마케팅의 이론적 배경을 살펴보았다. 또한, 고객 인게이지먼트의 전반적인 이론에 대해 살펴본 후 이론적 고찰을 바탕으로 인게이지먼트 요소를 인지적, 정서적, 행동적 차원에 따라 사례 분석 모형을 도출하였다. 사례 분석을 통해 공통으로 도출된 요소를 바탕으로 결과를 도출하였다. 연구 결과, 브랜디드 콘텐츠 광고의 모든 사례에서 인지적 차원의 요소인 '내러티브(스토리텔링)'과 '몰입성'이 공통으로 가장 높게 나타났고 정서적 차원의 ‘신뢰성’ 요소는 전체적으로 가장 낮게 나타났다. 기업은 고객에게 브랜드에 대한 신뢰성을 제공하여 적극적인 참여를 도모하고 상호작용한다면 효과적으로 고객 로열티를 구축할 수 있을 것이다. 향후 고객과의 관계를 강화할 수 있도록 브랜드에 대한 신뢰를 유발할 수 있는 광고 콘텐츠에 관한 연구가 필요하며 효과적인 고객 인게이지먼트를 통한 고객과의 관계를 구축할 수 있도록 디지털 마케팅의 수단인 브랜디드 콘텐츠 활성화 방안에 관한 지속적인 연구가 이루어져야 한다. The marketing method as well as the media consumption environment have been changed due to the diversification of digital-centered media sources. The phenomenon of consumer’s avoidance of advertising and the emergence of services that can use content without advertising have resulted in an era in which consumers choose advertising, and branded content, which is one of the measures to respond to such a situation, has a characteristic that the brand is naturally integrated into the content, so that there is little resistance to delivering a message about the brand. Thus, building and strengthening customer loyalty is key in order for companies to effectively deliver their brand value and message to customers. In fact, it is required to activate digital marketing using customer engagement to build that customer loyalty. Therefore, this study aimed to analyze branded content and suggest its direction through the concept of customer engagement that can strengthen customer loyalty as a development plan for branded content-based digital advertising. First of all, it considered the concept and characteristics of branded content and examined the theoretical background of content marketing. In addition, it derived a case analysis model from the cognitive, emotional, and behavioral levels of engagement factors based on the theoretical consideration after examining the overall theory of customer engagement. The study results were derived based on factors commonly derived through the case analysis. The study results showed that in all cases of branded content advertising, ‘narrative (storytelling)’ and immersion’, the factors of the cognitive level, were found to be the highest in common, while ‘reliability’, the factor of the emotional level was found to be the lowest. If a company provides its customers with brand credibility to encourage their active participation and interact with each other, it will be possible to effectively build customer loyalty. Furthermore, it is necessary to conduct research on advertising content that can induce brand credibility to strengthen the relationship with customers in the future, and studies on methods to activate branded content, one of the means of digital marketing, should be carried out so that it is available to build relationships with customers through effective customer engagement.

The validation of simultaneous determination of 25 phenolic compounds including their metabolites in human urine by LC-MS/MS coupled with on-line SPE

Dahyun Jeong,In kyung Bae,Yoon Jae Cho,Myungsil Hwang,Yong Eui Koo 한국분석과학회 2016 학술대회논문집 Vol.2016 No.11

Effects of high and moderate intensity exercise programs on Parkinsonian gait

Dahyun Nam(남다현),Kiwon Park(박기원),Kyeongho Byun(변경호),Nyeonju Kang(강년주),Ryul Kim(김률) 대한기계학회 2023 대한기계학회 춘추학술대회 Vol.2023 No.4

Higher food literacy scores are associated with healthier diet quality in children and adolescents: the development and validation of a two-dimensional food literacy measurement tool for children and adolescents

Dahyun Park,Mi-Kyung Choi,Yoo Kyoung Park,Clara Yongjoo Park,Min-Jeong Shin 한국영양학회 2022 Nutrition Research and Practice Vol.16 No.2

BACKGROUND/OBJECTIVES: Most child and adolescent food literacy measurement tools focus on nutrition and food safety. However, the importance of aspects related to the food system such as food distribution and food waste and their effects on environmental sustainability is growing. We therefore developed and validated a two-dimensional tool for children (8–12 years old) and adolescents (13–18 years old) that can comprehensively measure food literacy. The association of food literacy with diet quality and self-reported health was assessed. SUBJECTS/METHODS: First, we developed a food literacy conceptual framework that contains food system and literacy dimensions through a literature review, focus group interviews, and expert review. After a face validity study, we conducted the main survey (n = 200) to validate the questionnaire. Construct validity and reliability were assessed using exploratory factor analysis (EFA), confirmatory factor analysis (CFA), and Cronbach"s alpha. RESULTS: As a result of the Delphi study, content validity was confirmed for the remaining 30 items after two items were excluded (content validity ratio = 0.86). Eleven items were excluded from the EFA results, while the CFA results indicated appropriate fit indices for the proposed model (comparative fit index = 0.904, root mean square error of approximation = 0.068). The final food literacy questionnaire consisted of 19 questions and comprised 5 factors: production, distribution, selection, preparation and cooking, and intake. Food literacy was positively associated with diet quality, as assessed by the Nutrition Quotient score, in both children and adolescents and with self-reported health in adolescents. CONCLUSIONS: Based on this integrated conceptual framework, a two-dimensional 19-item food literacy measurement tool was developed and verified for practical use to improve the diet quality and food-related environmental sustainability awareness of children and adolescents.

Selection and antibacterial activity of potential probiotic lactic acid bacteria from kimchi

Dahyun Kang,Dain Kwon,Heewon Moon,Hansol Lee,Jung-Heun Ha,Youngseung Lee,Yoonhwa Jeong,Misook Kim 한국식품영양과학회 2022 한국식품영양과학회 학술대회발표집 Vol.2022 No.10

Effects of Culture Media on hCTLA4Ig Production and Protein Expression Patterns in Transgenic Rice Cell Suspension Cultures

Dahyun Yu,송미나,임정애,김동일 한국생물공학회 2008 Biotechnology and Bioprocess Engineering Vol.13 No.4

The effects of culture media on the production of human cytotoxic T-lymphocyte antigen 4-immunoglobulin (hCTLA4Ig) and intracellular protein expression patterns were investigated in transgenic rice cell suspension cultures. Using comparative proteomic analysis, changes in the intracellular proteome in different culture media were identified. Culture media were found to be an important factor for the production of the recombinant target protein in this expression system, which was under the control of the rice α-amylase 3D (RAmy3D) promoter. In terms of hCTLA4Ig production, the N6 medium produced a 3.7-fold higher level of protein than the AA medium. In addition, the N6 medium provided better protein stability and cell viability. In the intracellular proteome analysis, we identified eight proteomes that were differentially expressed. These results could provide valuable information for the improvement of cell growth and target protein production.

Food Literacy in South Korea: Operational Definition and Measurement Issues

( Dahyun Park ),( Min-jeong Shin ),( Sunmi Song ) 한국임상영양학회 2019 Clinical Nutrition Research Vol.8 No.2

Since chronic diseases have emerged as a major cause of death worldwide, people has been exposed to large amounts of information on healthy eating practices that are important aspects of its prevention and management. Food literacy, the functional, interactive, and critical ability to manage dietary information with the aim of improving health, is of global interest. In South Korea (hereafter Korea), there is currently a lack of food literacy research, despite its pertinence for the development of public health policies that are tailored to recipients' ability to understand and address health and nutrition issues. In this study, the research trend and policy implications of food literacy are derived through reviewing preceding studies related to food literacy in Korea and elsewhere. Existing literature on food literacy in Korea placed much emphasis on the functional ability of food literacy. Future research on the operational definitions of interactive and critical food literacy and their health effects in Korea is necessary. In addition, there is a lack of research on the development and validation of measurement tools that evaluate integrative concepts of food literacy. To accurately examine the relationships among food literacy, diet, and health, standardized measurement tools that can comprehensively evaluate food literacy frameworks for various Korean sub-population groups should be developed. Based on such future studies, an investigation of health promotion programs or policies on reducing the cognitive burden of food literacy would contribute to improving heathy eating practices in Korea.

Effects of Temperatures in Transgenic Oryza sativa L. Cell Cultures Producing hCTLA4Ig

Dahyun Yu,Hye-Jin Kang,Kyoung-Hoon Lee,Su-Hwan Cheon,Jun Young Kwon,Hyun-Nam Ryu,Jiseon Yoo,Dong-Il Kim 한국생물공학회 2007 한국생물공학회 학술대회 Vol.2007 No.4