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인공어초 단지 주변 해양쓰레기 피해 시민모니터링과 스쿠버다이빙 레저활동 접목 방안
우민수,곽태진,박요섭,홍선욱,임세한 한국해양환경·에너지학회 2023 한국해양환경·에너지학회지 Vol.26 No.3
Artificial reefs are structures installed to protect marine life and cultivate marine resources. After installa-tion, the effects need to be reassessed. However, despite the installation of a staggering 1,435,618 artifi-cial reefs, long-term post-installation surveys have not been conducted. The vicious cycle of artificial reefs losing their original functions due to marine debris entanglement is also frequently recognized. To address this issue, we investigated marine debris around artificial reefs by integrating leisure activities and citizen science. We conducted surveys at a total of 18 locations using three methods: Underwater Debris Survey (UDS), Common Underwater Photography (CUP), and Side Scan Sonar (SSS). The marine debris on four artificial reefs surveyed using UDS ranged from 4 to 15 items per 30 m2, weighing from 0.02 to 21 kg, with a significant proportion being plastic leisure fishing gears and discarded commercial fishing gears. By combining scuba diving, Underwater Debris Survey (UDS), and citizen science, a new type of scientific data collection, it is possible to achieve long-term monitoring of artificial reefs, obtain scientific data, and pursue marine environmental protection and sustainable development of the marine leisure industry.
우민수(Woo, Min Soo),민희정(Min, Hee Jeong),성송이(Sung, Song I),이소윤(Lee, So Yun),이채린(Lee, Chae Lin),장효정(Jang, Hyo Jeong) 한국농촌간호학회 2020 한국농촌간호학회지 Vol.15 No.2
Purpose: This descriptive correlational study was done to analyze the relationship between social support and self-care in hypertensive patients aged 30 years or older. Methods: Data were collected from April 09 to April 16, 2020 through an online survey (Naver Form) at Internet cafes and SNS Eighty 80 adults aged 30 or older who had been diagnosed with high blood pressure at a medical institution participated in the study. Data were analyzed using t-test, one-way ANOVA, Scheffé’s test and Pearson correlation coefficients with SPSS statistics 26.0. Results: The study results showed that social support for hypertensive patients was significantly higher for men (t=-2.17, p=.033), according to religious status (t=-2.33, p=.023), and the number of people in the household (F=6.05, p=.001). In addition, there was a significant positive correlation between social support and hypertensive self-care (r=.24, p=.036). Conclusion: The results confirm that the social support of patients with hypertension is related to self care for hypertension management. As the number of elders and single-person households who cannot manage their health well increases, it is necessary to establish a long-term and continuous social support system for these clients.
우민수(M.S.Woo),이경수(K.Yi),김성하(S.H.Kim) 한국자동차공학회 1998 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1998 No.11_2
Collision warning/avoidance systems have the potential to substantially reduce the frequency and severity of accidents. The collision warning/avoidance systems, and adaptive cruise control systems are currently under development by most automotive manufacturers around the world. This paper presents a brake control for a collision avoidance(CA) system. The proposed brake control has been compared to a simple CA algorithm which use on/off binary brake control. Nonlinear control techniques have been used to minimize driver discomfort during braking in a CA system.<br/>
병원 내 언어폭력에 노출된 임상 간호사의 경험: 현상학적 연구
우민수 ( Min Soo Woo ),김형숙 ( Hyoung Suk Kim ),김증임 ( Jeung-im Kim ) 한국여성건강간호학회 2022 여성건강간호학회지 Vol.28 No.2
Purpose: This study aimed to describe clinical nurses’ lived experiences of workplace verbal violence through qualitative research using descriptive phenomenology. Methods: Six female Korean nurses who had less than 5 years of clinical experience and had experienced verbal violence in the workplace within the past year participated in the study. Data were collected through one-on-one in-depth interviews with the participants and analyzed using Colaizzi’s phenomenological method. Results: A total of 27 codes, eight themes, and four theme clusters were derived from the participants’ statements. The four theme clusters of the clinical nurses’ experiences of verbal violence in the workplace were as follows: “tip of the iceberg,” “beyond me and my control,” “fear and resignation,” and “personal burden.” The participants recognized that nurses experienced verbal violence daily, and that the causes of and responses to verbal violence were determined by external situational factors rather than nurses’ individual problems. This suggests that nurses felt that they had no choice but to personally cope with verbal violence and bear the consequences due to systematic indifference and silence about verbal violence experienced by clinical nurses. Conclusion: The findings show that verbal violence was pervasive and unmerited, yet often endured at the cost of a personal burden to nurses. A clear definition of verbal violence and education for employees are needed, and a reporting system should be established to report all forms of violence regardless of the severity of the incident.
우민수(Minsu Woo),정융호(Yoongho Jung) 한국산학기술학회 2020 한국산학기술학회논문지 Vol.21 No.3
얼음을 제공하는 기능이 구비된 냉장고는 대부분 냉장고 내부의 얼음 저장소에 미리 얼음을 채워 두고 사용자가 필요할 때 많은 양의 얼음을 취출할 수 있도록 하고 있다. 그러나 냉장고의 얼음 저장소에 얼음이 채워진 상태로 냉장고가 장기간 사용되지 않거나 정상적인 동작 중에도 시간이 경과하면 얼음이 서로 엉기는 현상이 발생한다. 이렇게 엉긴 얼음 덩어리를 분리시키는 메커니즘이 구비되어 있으나 얼음 엉김 현상이 심할 경우 얼음이 완전히 취출되지 못하는 문제가 있다. 본 연구에서는 이러한 문제를 해결하기 위해 얼음이 엉기는 과정과 얼음의 분리력에 관한 기존의 연구를 조사하였고, 인위적으로 얼음을 엉기게 하여 다양한 조건에서 얼음의 취출 정도를 실험하였다. 이 과정에서 얼음의 취출을 방해하는 기존 얼음 저장소 형상의 문제점에 착안하여 이를 개선하기 위한 형상과, 완전 취출을 위해 얼음 분쇄 메커니즘의 작동 반경을 넓히는 새로운 메커니즘을 제안하였다. 제안된 메커니즘의 시제품을 제작하고 실제 냉장고에 적용하여 얼음이 완전 취출됨을 검증하였다. 그 결과 기존 얼음 저장소의 형상과 분쇄 메커니즘에서 얼음 취출률이 65%정도이었으나, 제안된 형상과 메커니즘에서는 완전히 추출되었다. A refrigerator equipped with an ice dispenser has ice cubes in its ice bucket to discharge the required amount of ice. On the other hand, the ice cubes in the bucket may clump together if the refrigerator is filled with ice and is not used for a long time or during normal operation. Although a mechanism for separating the ice mass is provided, the ice mass cannot be removed completely if the ice blocking is severe. To solve this problem, after investigating the existing research on the process of ice entanglement and the separation force, this study tested ice extraction under a range of conditions of artificially entangled ices. In this process, new mechanisms are proposed to resolve the problem of existing ice storage features that prevent the extraction of ice and to expand the working radius of the icebreaking mechanism for full extraction. The prototype of the proposed mechanism was also fabricated in an actual refrigerator. As a result, the proposed shape and mechanism could extract the ice cubes in the bucket completely, while the existing ice dispenser could extract only 65%.