드론 영상을 활용한 보행자 밀집도 관리 및 인파 측정 파라미터 도출 연구

윤소정,장원석,박철융,박제진 한국도로학회 2023 한국도로학회 학술대회 발표논문 초록집 Vol.2023 No.10

의학전문대학원생의 학습동아리 참여 경험에 대한 성찰 에세이 분석

윤소정,박귀화,Yune, So Jung,Park, Kwi Hwa 연세대학교 의과대학 2016 의학교육논단 Vol.18 No.3

This study analyzed participation experiences in a voluntarily learning community using both quantitative and qualitative methods. Sixty freshmen and sophomore medical school students in 10 learning communities participated in the study. At the time of the survey, learning communities had been operating for 10 weeks and had weekly in-person meetings. Satisfaction questionnaires and reflective essays were given and analyzed. The results showed that learning community experiences were effective in promoting students' learning motivation, cooperative learning, responsibility, and communication skills. Three essential topics and nine subjects were analyzed in the reflective essays. Three essential topics were conflict with each other due to the difference, forming deep relationships, and sharing and learning together with an in-depth study. The results of this study will contribute to collaborative learning culture and the development of learning communities in medical schools.

퇴적 구조 관찰 시 유념해야 할 토양화 및 지하수 유동 흔적: 경주 용장리 트렌치 단면의 예

윤소정 대한자원환경지질학회 2019 자원환경지질 Vol.52 No.6

본 논문에서는 2017년 경주시 내남면 용장리 트렌치 단면에서 퇴적층을 관찰할 때 고려해야하는 토양화 과정과 지하수의 유동에 기인하여 나타나는 특성을 기술하였다. 지표로부터 굴착된 트렌치 단면은 토양화 과정과 지하수 유동에 의한 흔적을 포함하고 있어 퇴적학자들의 관찰에 영향을 줄 수 있다. 이 사이트 토양은 비교적 초기단계의 토양화과정에 있어서 퇴적층의 특징을 관찰하는데 크게 어려움을 주지 않으나, 퇴적층리 관찰을 가장 어렵게 하는 요인은지하수의 이동에 따른 망간산화물과 철산화물의 침전이었다. 지하수면을 따라 형성된 이 침전물은 퇴적층의 경계면에형성되어 있기도 하고, 지하수면의 위치 또한 접하고 있는 퇴적층의 입자 크기에 따라 달라지므로 여러 위치에서 침전물이 관찰되었다. 또 이들 지하수면 상하부에서는 각기 철의 산화환원 상태에 따라 색변화가 관찰되므로 퇴적층 기술에 주의가 요구된다. 미세기공을 통해 모세관 현상으로 상부로 이동하는 지하수에 의해 일부 세립질 퇴적층이 지하수면 수 미터 상부까지 환원상태를 유지하면서 환원철 상태를 지시하는 색을 띠기도 하였다.

pH에 따른 부식유기산의 메틸수은 결합 리간드 변화: X-선 흡수분석

윤소정,Yoon, Soh-Joung,Bleam, William F. 한국지하수토양환경학회 2011 지하수토양환경 Vol.16 No.6

Mercury accumulates in biota mainly as methylmercury. In nature, methylmercury shows high affinity to organic matter and $CH_3Hg^+$-organic matter complexation affects the mobility and bioavailabiity of methylmercury. In this study, we examined the methylmercury binding sites in an aquatic humic acid as affected by the pH condition using Hg $L_{III}$-edge extended X-ray absorption fine structure (EXAFS). We evaluated methylmercury binding humic ligands using methylmercury-thiol, methylmerury-carboxyl, and methylmercury-amine complexation models. When $CH_3Hg^+$-to-humic reduced sulfur ratio is 0.3, we found that most of $CH_3Hg^+$ binds to thiol ligands at pH 5 and 7. At pH 7, however, some carboxyl or amine ligand contribution is observed, unlike at pH 5 where $CH_3Hg^+$ almost exclusively binds to thiol ligands. The carboxyl or amine ligand contribution may indicate that some types of thiol ligands in the natural organic matter have relatively low complexation constants or acid dissociation constants compared to those of some carboxyl or amine ligands. Analysis results indicate that ~0.2 fraction of methylmercury binds to amine or carboxyl ligands and ~0.8 to thiol ligands at pH 7.

대장균과 황색포도상구균에 대한 이산화염소의 살균소독력 평가 및 살균예측모델 개발

윤소정,박신영,김용수,하상도 한국식품위생안전성학회 2017 한국식품위생안전성학회지 Vol.32 No.6

There has been increasing concern regarding misuse of disinfectants and sanitizers such as ethanol, sodium hypochlorite, and hydrogen peroxide for food contact surfaces in the food industry. Examining the efficacy of the concentration of currently used disinfectants and sanitizers is urgently required in the Korean society. This study aimed to develop predictive reduction models for Escherichia coli and Staphylococcus aureus in suspension, as a function of ClO2 (chlorine dioxide) and contact time using response surface methodology. E. coli ATCC 10536 and S. aureus ATCC 6538 (initial inoculum, 8-9 log CFU/mL) in tryptic soy broth were treated with different concentrations of ClO2 (5, 20, and 35 ppm) for different contact times (1, 3, and 5 min) following a central composite design. The polynomial reduction models for ClO2 on E. coli and S. aureus were developed under the clean condition. E. coli reduction by 35 ppm ClO2 for 1, 3, and 5 min was 2.49, 2.70, and 3.65 logCFU/mL, respectively. Also, S. aureus reduction by 35 ppm ClO2 for 1, 3, and 5 min was 4.59, 5.25, and 5.81 logCFU/mL, respectively. The predictive response polynomial models developed were R = 0.43231 − 0.056492*X1 − 0.097771*X2 + 9.24167E − 003*X1*X2 + 3.06333E − 003*X1 2 (R2 = 0.98) on E. coli and R = 1.10542 − 0.20896*X1 − 0.046062*X2 + 8.30000E − 003*X1*X2 + 8.73300E − 003*X1 2 (R2 = 0.99) on S. aureus, where R was the bacterial reduction (log CFU/mL), X1 was the concentration and X2 was the contact time. Our predictive reduction models should be validated in developing the optimal concentration and contact time of ClO2 for inhibiting E. coli and S. aureus on food contact surfaces.

Phosphate Sorption on Boehmite with Eu(III): P K-edge EXAFS Fingerprinting

윤소정,Yoon, Soh-Joung,Bleam, William F. The Korean Society of Economic and Environmental G 2009 자원환경지질 Vol.42 No.5

Actinide sorption to the geological materials can reduce the mobility and bioavailability of radionuclides released to the environment through the development of nuclear weapons and nuclear energy. Under circumneutral pH conditions, actinide sorption can be enhanced by phosphate anions sorbed on oxide mineral surfaces as indicated by the sorption of trivalent lanthanide ions ($Ln^{3+}$), the chemical analog for trivalent actinide ions ($Ac^{3+}$). In this paper, we examined a ternary sorption system of trivalent europium ions ($Eu^{3+}$) sorbed onto boehmite (${\gamma}$-AlOOH) surfaces pre-sorbed with phosphate anions (${PO_4}^{3-}$), using extended X-ray absorption fine structure (EXAFS) spectroscopy. In the Eu-$PO_4$-boehmite ternary sorption system, $EuPO_4$ surface precipitates were formed as implicated by Eu $L_{III}$-edge EXAFS spectroscopy. Phosphorus K-edge EXAFS fingerprinting indicated a bidentate mononuclear surface complex formation of phosphate sorbed on boehmite surfaces as well as $EuPO_4$ surface precipitate formation.

강황 발효를 위한 최적 배양 조건 탐색과 김치 유래 발효균주 선발

윤소정,한겨레,이기연,나동하,이형재 한국산업식품공학회 2020 산업 식품공학 Vol.24 No.4

The purpose of this study is to optimize the composition of the medium for turmeric fermentation and to select competent turmeric fermentation strains using bacterial isolates from kimchi. Initially, 30 isolates from kimchi were cultured in 5% (w/v) yeast extract and 1% (w/v) maltodextrin to determine viability. As a result, eight strains showed a tendency to maintain viability until the fifth day of fermentation. Subsequently, the eight isolates were fermented in an optimum medium for turmeric fermentation, 5% (w/v) yeast extract, 1% (w/v) maltodextrin, and 5% (w/v) turmeric for seven days to determine the viable cell count and antioxidant capacity. The antioxidant capacities of turmeric fermented by the eight isolates were similar or higher than turmeric fermented by Lactococcus lactis KCTC 2013, while maintaining high viable cell counts of both the eight isolates and L. lactis KCTC 2013 until the seventh day of fermentation. The antioxidant capacities of the selected five strains during fermentation might increase possibly due to the biological conversion of active compounds in turmeric by fermentation. Consequently, a total of five strains of the isolates showing higher antioxidant capacity (4.81±0.19-5.81±0.04 VCE/mL) than fermentation day 0 were selected for fermentation of turmeric.

당선소감

윤소정 사단법인 한국극작가협회 2023 한국희곡 Vol.89 No.-

메타버스 기술 활용 지역관광 활성화 방안에 관한 연구

윤소정,이한진,손가은,윤동현 융복합지식학회 2024 융복합지식학회논문지 Vol.12 No.1

팬데믹을 지나며 지역관광 및 도시경제에 영향을 주는 예상 밖 변수들이 늘어나면서 중장기적인 미래 대응방안이 중요해졌다. 이에 관광 빅데이터, 여행 IoT, 레저스포츠 AI 등 변화에 대응할 수 있는 다양한 디지털 기술이 제시되었고, 범용적인 메타버스의 활용성이 높아졌다. 확장된 현실(XR)인 메타버스는 가상과 현실이 융합된 디지털 환경을 제공하며, 이를 통해 지역의 관광 홍보, 경제 활성화, 교육 강화, 디지털 인재 양성의 가능성을 확대할 수 있다. 따라서 선행연구 검토를 바탕으로 메타버스 기술과 콘텐츠를 활용하여 지역관광 및 도시재생을 촉진하기 위한 방안을 제시하고자 한다. 본 논문에서는 이러한 메타버스의 잠재력을 활용한 몰입형 가상 도시맵 프로젝트(써핑, 패러글라이딩, 플로깅, 워케이션 등)를 소개한다. 본 프로젝트는 지역의 고유한 역사와 문화를 메타버스를 통해 체험하고, VR을 비롯한 다양한 실감형 콘텐츠를 융합하여 디지털 경험 기회를 제공한다. 이를 기반으로 국내외에 걸쳐 지역 홍보를 강화하고, 젊은 활력이 넘치는 지역거점의 경제환경 활성화 방안을 논의하였다. Since the COVID-19 pandemic, unforeseen variables impacting the tourism landscape have increased, elevating the significance of long-term and medium-term future response strategies. Consequently, various digital technologies, such as tourism big data and travel IoT, and leisure sports AI, have been proposed to adapt to these changes, highlighting the importance of utilizing the metaverse. The metaverse offers a digitally fused environment combining virtuality and reality, expanding the potential for regional tourism promotion, economic stimulation, educational enhancement, and fostering digital talent. Therefore, based on a review of prior research, this paper aims to present strategies for leveraging metaverse technology to promote local tourism and urban regeneration. This paper introduces a virtual city map project harnessing the potential of the metaverse, including a VR surfing, paragliding, plogging, workation and so on. It allows the exploration of a region's unique history and culture through this platform, while integrating various immersive contents in city map content, providing an opportunity to experience innovative digital technologies. Through these initiatives, discussions have been made to reinforce local promotional efforts and activate regional economies.

IT 기반 화용언어 중재에 대한 다문화언어발달지도사의 인식 및 요구 분석

윤소정,정상임,최윤정,김영태 한국언어청각임상학회 2024 Communication Sciences and Disorders Vol.29 No.2

배경 및 목적: 본 연구는 다문화가정 아동의 화용언어적 어려움에 대한 다문화언어발달지도사의 인식 및 중재 중요도, IT 기반 화용언어 중재 프로그램에 대한 요구를 설문조사를 통해 살펴보았다. 방법: 전국의 다문화언어발달지도사 300명 중 설문에 응답한 159명을연구대상으로 하였다. 설문은 배경정보, 화용언어 중재 경험, 다문화가정 아동의 화용언어적 어려움에 대한 인식 및 중재 중요도, IT 기반 화용언어 중재 프로그램에 대한 요구로 구성되었다. 결과: 다문화언어발달지도사 중 67.9%는 화용언어 중재 경험이 있고, 32.1%는중재 경험이 없었다. 화용언어적 어려움 인식의 경우 4년 이상 집단이 4년 미만 집단보다 유의하게 더 높게 인식하고 있었으나, 단일문화언어장애 아동 중재 경험 유무에 따라서는 통계적으로 유의한 차이가 없었다. 중재 중요도의 경우에는 경력 집단 간, 단일문화 언어장애 아동 중재 경험 유무 간 모두 차이가 없었다. IT 기반 화용언어 중재 프로그램의 경우 다문화언어발달지도사 사용 시 유용한 콘텐츠로는 자료제공형, 부모교육 제공형, 평가형 콘텐츠 순으로 나타났고, 부모 사용 시 부모교육 제공형, 문제해결형, 학습형 콘텐츠 순으로나타났다. 논의 및 결론: 다문화언어발달지도사들은 다문화가정 아동의 화용언어적 어려움 및 중재 중요도에 대해 높게 인식하고 있었으며, 이에 대한 적극적인 지원을 필요로 하고 있는 것으로 나타났다. IT 기반 화용언어 중재 프로그램 개발을 위한 후속연구 진행 시 본 연구의 결과를 기초 자료로 활용될 수 있을 것이다. Objectives: This survey study investigated the perception of supporters of language development for multicultural families (the supporters) in regards to the pragmatic language difficulties of multicultural children, the importance of intervention, and the demand for an IT-based pragmatic language intervention program. Methods: Among a total of 300 supporters across the country, 159 completed questionnaires, which were used for the analysis. The questionnaire consisted of the respondents’ background information; experience of pragmatic language intervention; perception of pragmatic language difficulties of multicultural children and importance of intervention, and demands of IT-based pragmatic language intervention program. Results: The supporters with 4 years or more of experience reported the children to have greater pragmatic language difficulties compared with those with those with less than 4 years of experience. No statistically significant differences were found in the perceptions of the importance of pragmatic language intervention for multicultural children. The supporters indicated that the most useful IT-based pragmatic language intervention program would be ‘materials offer type’, followed by ‘pragmatic-language-intervention-related parent education type’, and ‘evaluation type’ respectively. Also, the respondents indicated that ‘pragmatic-language-intervention-related parent education type’ would be the most useful for the parents followed by ‘problem solving type’, and ‘learning type’ in the order listed. Conclusion: The supporters were highly aware of the pragmatic language difficulties of multicultural children and the importance of intervention, and the survey results indicated that they needed active support. The results of this study can be used as basic data when a follow-up study is conducted to develop an IT-based pragmatic language intervention program.