http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
6000톤급 자율운항선박을 위한 자동계류장치 설계 및 구조 최적화에 대한 연구
김남건,신하늘,김태균,박지혁 한국로봇학회 2022 로봇학회 논문지 Vol.17 No.4
This paper presents the design for the kinematic structure of a system for an automatically moored 6000 ton autonomous ship in a port, and the process and results of optimal design for the link cross-sectional shape. We propose an automatic mooring system with a PPP type serial manipulator structure capable of linear motion in the XYZ axis. The mooring force applied by the mooring system was derived with dynamics simulation tool “ADAMS”. The design goal is the minimization of the cross-sectional area of the link. Constrains include compressive stress and shear stress. The optimization problems were solved by using the sequential quadratic programing method implemented in the fmincon package. The shape of the cross section was assumed to be rectangle. Through future research, we plan to manufacture automatic mooring system for 6000ton class autonomous ship.
곽복자,서정임,송은지,신하늘,전재희 한국성인간호학회 2023 성인간호학회지 Vol.35 No.2
Purpose: This study aims to confirms the relationship between nurses' professional autonomy, job satisfaction, perceived patient-safety culture, and patient-safety management activities; it also identifies factors that influence their patient-safety management activities. Methods: A cross-sectional study design was adopted. The participants were 164 nurses from at five hospitals in two G provinces, Korea, who participated in the study voluntarily. Data were collected between November and December 2022 via a 120-question structured questionnaire and analyzed using SPSS/WINdows software version 25.0. The data were measured by frequency, percentage, and mean and standard deviation, using an independent t-test, one-way ANOVA, Pearson's correlation coefficients, and multiple regression analysis. Results: The average age of the participants was 35.54±8.42 years; 143 (87.2%) were women. The following factors influenced their patient-safety management activities: level of education (β=.16, p=.018), experience of patient-safety education (β=.15, p=.014), and perceived patient-safety culture (β=.56, p<.001). The explanatory power of the nurses' patient-safety management activities was 44.0%. Conclusion: Hospital managers should enable nurses to carry out patient-safety procedures competently by providing continuous patient-safety education; they should also revise regulations and systems to promote good patient-safety management practices and create an environment that supports patient safety. In addition, a program should be designed and implemented to improve nurses' perceived patient-safety culture.