젤리 제형에 대한 염화칼슘의 첨가가 젤리를 3D 프린팅 하는데 요구되는 소재 필요요건에 미치는 영향

정하은,인지원,송상훈,민세철 한국산업식품공학회 2021 학술대회 및 심포지엄 Vol.2021 No.05

갈등사회의 샬롬을 위한 신앙공동체교육 : ABCD, A.I 4D, 대화를 중심으로

정하은 한국기독교교육학회 2023 기독교교육논총 Vol.- No.75

Purpose of study: This study seeks practical ways to resolve conflicts between church and religious community members in modern society living in an age of division and conflict. Research content and method: First, the phenomenon and causes of a society of division and conflict were examined. Second shalom was studied to restore division and conflict. Third values were discovered along with the ABCD theory for the development of an asset-based community in order to solve a society of conflict with shalom. 4D cycle strategy of A.I. Fourth in order to restore the conflicts of the faith community to shalom, the ABCD theory and the 4D of A.I. were presented with ways to manage conflicts, minimize division, and restore shalom through dialogue and storytelling tools. Conclusions and Suggestions: The various conflicts in our society can be restored when all Christians discover their vocation and talent through the method of dialogue for shalom, solidarity as a community of faith, and achieve shalom. Therefore it is necessary to educate the Shalom faith community through dialogue for Shalom.

초연결성 사회에서의 기독교교육 방향 모색

정하은 한국기독교교육학회 2022 기독교교육논총 Vol.- No.71

The era we are living in is an era of hyperconnectivity where boundaries and limitations of each field and domain disappear and organically converge and share with each other. Christians living in the age of hyperconnectivity are losing their direction of life due to various divisions and severances, such as holiness and secularity, church and world, soul and body, faith and life, and humans and nature. However, in a hyperconnected society, it is necessary to break free from division and conflict caused by disconnection, and realize the kingdom of God through connection and solidarity between humans, nature, and the world. In order to explore the direction of Christian education for this purpose, this study examined the characteristics of the era of hyperconnectivity and the principle of solidarity, which is the core of hyperconnectivity. The theological meaning of solidarity was examined in terms of humans, nature, and the world, and based on this understanding, the direction of Christian education in the era of hyperconnectivity was sought. It can be summarized as having a religious understanding of human beings of Homoconnectus with a pericoretic mode of existence. Third, education on the kingdom of justice and peace where we can live together in a solidarity relationship can be summarized.

Improvement of jelly 3D printing using ultrasound treatment and calcium chloride

정하은,이창주,민세철 한국식품과학회 2024 Food Science and Biotechnology Vol.33 No.11

This study investigated the effects of ultrasound treatment or calcium chloride (CaCl2) addition on the physical properties of jelly formulations. Elastic modulus (G’), loss modulus (G”), tan δ, shear modulus, yield stress (τ0), phase angle (δ), and gel strength were the parameters selected to describe the requirements of jelly printing, such as fidelity, shape retention, and extrudability. Ultrasound treatment of the jelly formulation without pectin increased the G’ and shear moduli values, while decreasing the δ and gel strength. The addition of CaCl2 to the jelly formulation with pectin increased the G’, G”, shear modulus, τ0, and gel strength but lowered the tan δ and δ values. Both ultrasound treatment and CaCl2 addition improved the jelly printing requirements and demonstrated the potential to control the physical properties of jelly formulations for 3D printing using fused deposition modeling.

중국 관광객의 한국 뷰티상품에 대한 인식이 뷰티관광 구매행동에 미치는 영향과 한국 문화 친밀성의 매개효과

정하은,김미영 복식문화학회 2016 복식문화연구 Vol.24 No.6

The purpose of this paper is to examine the effect that Chinese tourists’ perceptions of beauty products and their friendliness toward Korean culture have on beauty tourism, particularly on Chinese tourists’ intent to purchase, re-purchase, and recommend beauty products. Between the 10th and 21st of June, 2016, a total of 277 questionnaires were distributed in Seoul, Busan, and Daegu using SPSS 21.0. Cronbach’s α was undertaken to test the reliability of the questions and an analysis of the frequency, factors, t-test, and Sobel test used in the study. Korean beauty was derived from two factors: “product favorability” and “product excellence and credibility.” Product favorability had a significant effect on the intent to purchase, as did participants’ friendliness toward Korean culture. Re-purchases and the intent to recommend beauty products were also significantly affected. In the relationship between the perception of beauty products and the intent to purchase, the study revealed partial mediation effects of the participants’ friendliness toward Korean culture on product favorability and complete mediation effects on product excellence and credibility. Friendliness toward Korean culture had partially mediated the effect that product favorability had on the intent to re-purchase and recommend. Tourists’ friendliness toward Korean culture had complete mediation on the effect that product excellence and credibility had on the intent to re-purchase and recommend. According to the Gender Equality and Family Act, the difference between buying and selling beauty depends on the difference between purchase and intentions. Friendliness toward Korean culture has become an important variable thanks to product superiority and reliability.

초등 1-4학년 언어발달지연 아동과 일반 아동의 이야기 산출 회상 능력과 작업기억과의 관계

정하은,임동선,조재은,주혜진,김정원,김아영 한국특수교육학회 2023 특수교육학연구 Vol.58 No.3

This study investigated the relationship between narrative skills and working memory in typically developing children and children with language delay. The macrostructure of narrative was analyzed through story grammar scores, and the microstructure was measured using measures of mean length of utterance (MLU-m), number of different words (NDW), and syntactic complexity (T-unit). Additionally, this study aimed to identify the cognitive variables related to narrative skills, specifically phonological working memory, spatial working memory, and the episodic buffer. A total of 112 children in the age range of 6-10 years from Seoul participated in the study, with 81 being typically developing children and 31 having delayed language development. All participants completed tasks related to narrative production, recall, and working memory. The study’s results revealed that the typically developing children group showed significantly higher scores in story grammar, lexical diversity (NDW), and syntactic complexity (MLU) compared to the group with delayed language development. Additionally, the typically developing children group demonstrated a significantly higher performance in non-word repetition, the matrix task, and word list recall tasks compared to the language delay group. Within the typically developing children group, significant positive correlations were observed between the lexical diversity and episodic buffer, as well as between the visuospatial working memory and narrative recall task. In the language delay group, a significant positive correlation was found between story grammar scores in the narrative production task and episodic buffer. A positive correlation between mean length of utterance in the production task and spatial working memory was found.. Additionally, the episodic buffer significantly predicted lexcial diversity and story grammar.

폐어구로 인해 발생하는 해양 사고 저감 방안

정하은 해양환경안전학회 2021 해양환경안전학회 학술발표대회 논문집 Vol.2021 No.11

일광요법을 적용한 산림치유프로그램이 고령자의 우울과 수면, 삶의 질에 미치는 영향

정하은,연평식 한국산림휴양복지학회 2024 한국산림휴양학회지 Vol.28 No.2

본 연구는 일광요법을 적용한 산림치유프로그램이 고령자의 우울과 수면, 삶의 질에 미치는 효과를 알아보기 위해 수행되었다. 대상자는 만 55세 이상의 고령자 일반인으로 일광요법산림치유집단(일광요법 적용)·산림치유집단(일광요법 미적용)·대조집단(무처치)으로 각 14명씩 총 42명이다. 2023년 9월 4일부터 10월 29일까지 8주 동안 일광요법산림치유집단·산림치유집단은 매주 1회씩 총 8회, 2시간 프로그램 활동을 진행하였고, 일광요법산림치유집단만 일상에서 매주 2일 이상, 8주동안, 30분씩 일광요법을 추가하였다. 연구를 위해 BDI, PSQI-K, WHOQOL-BREF를 이용하여 실험 사전평가, 중간평가(4주 후), 사후평가(8주 후) 총 3회에 걸쳐 측정하였다. 수집된 자료는 SPSS 25.0 프로그램으로 분석하였다. 분석결과 첫째, 우울은 일광요법산림치유집단·산림치유집단이 모두 통계적으로 유의미하게 감소되었으며, 특히, 일광요법산림치유집단은 사후분석결과, 실험 사전에서 중간(1), 중간에서 사후(2), 사전에서 사후(3) 측정시 모두 감소하는 효과를 보였다. 둘째, 수면의 질은 일광요법산림치유집단·산림치유집단이 모두 통계적으로 유의미하게 개선되었다. 그리고 일광요법산림치유집단이 산림치유집단보다 긍정적 효과의 변화폭이 컸다. 셋째, 삶의 질에서도 일광요법산림치유집단·산림치유집단이 모두 통계적으로 향상된 결과가 나타났다. 그리고 일광요법산림치유집단이 산림치유집단보다 긍정적 효과의 변화폭이 컸다. 넷째, 대조집단(무처치)은 통계적으로 유의미한 결과가 나타나지 않았다. 따라서 일광요법을 적용한 산림치유프로그램이 고령자의 우울과 수면을 개선하고, 삶의 질 향상에도 긍정적인 영향을 미치는 것을 알 수 있다. This study was conducted to investigate the effects of a forest therapy program with sunlight therapy on depression, sleep, and quality of life in the elderly. The subjects were general elderly people aged 55 years or older, with 14 subjects in each of the following Sunlight Forest Therapy Groups(with sunlight therapy)·Forest Therapy Groups(without sunlight therapy)·Control Groups(no treatment), for a total of 42 subjects. For the study, BDI, PSQI-K, and WHOQOL-BREF were used to measure three times in total: pre-assessment of the experiment, interim assessment (after 4 weeks), and post-assessment (after 8 weeks). The collected data were analyzed using the SPSS 25.0 program. The results showed that, first; depression was statistically significantly reduced in both the sunlight therapy forest therapy group and the forest therapy group, and in particular, the sunlight therapy forest therapy group showed a decrease in all of the post-analysis results when measuring Pre-evaluation to interim evaluation(1), Interim evaluation to post evaluation(2), and From pre-evaluation to post-evaluation(3) before the experiment. Second; the sleep quality index was statistically significantly improved in experimental Sunlight Forest Therapy Groups and Forest Therapy Groups. In addition, the Sunlight therapy forest therapy group had a greater change in positive effects than the forest therapy group. Third; the quality of life also improved statistically significantly in Sunlight Forest Therapy Groups and Forest Therapy Groups. In addition, the Sunlight therapy forest therapy group had a greater change in positive effects than the forest therapy group. Fourth; the control group(no treatment) did not show statistically significant results. Therefore, it can be seen that the forest therapy program with sunlight therapy has a positive effect on improving depression, sleep and quality of life in the elderly.

Impact of poly-γ-glutamic acid addition and pH changes on the 3D-food printability of cookie dough

정하은,이창주,민세철 한국식품과학회 2025 Food Science and Biotechnology Vol.34 No.10

This study aimed to investigate the effects of poly-ɤ-glutamic acid (PGA) addition and pH adjustment on the rheological properties of cookie dough for 3D printing. Adding 1–2% PGA to the dough increased the storage modulus (G'), loss modulus (G''), shear modulus, tan δ, yield stress (τ0), phase angle, apparent viscosity, and hardness. Similarly, increasing the dough’s pH from 6.0 to 8.5 enhanced G', G'', shear modulus, τ0, and hardness. The addition of Alcalase to dough with high hardness modified the rheological parameters, making them to meet the required material criteria. The pH adjustment made the Alcalase treatment effective in modifying the parameters. The addition of 1% PGA or pH adjustment enabled successful 3D printing of the dough by improving fidelity, shape retention, and extrudability. Therefore, PGA addition and pH adjustment are effective methods for tailoring the physical properties of cookie dough for 3D printing applications.

잠재프로파일 분석을 통한 아동의 미디어 사용 유형화와 유형별 사이버 비행 인식 연구

정하은,전지혜 한국아동학회 2024 한국아동학회 학술발표논문집 Vol.2024 No.4