• Earthquakes and Structures
• /
• v.13 no.6
• /
• pp.573-588
• /
• 2017

The earthquake input is required when the soil-structure interaction (SSI) analysis is performed by the direct finite element method. In this paper, the earthquake is considered as the obliquely incident plane body wave arising from the truncated linearly elastic layered half space. An earthquake input method is developed for the time-domain three-dimensional SSI analysis. It consists of a new site response analysis method for free field and the viscous-spring artificial boundary condition for scattered field. The proposed earthquake input method can be implemented in the process of building finite element model of commercial software. It can result in the highly accurate solution by using a relatively small SSI model. The initial condition is considered for the nonlinear SSI analysis. The Daikai subway station is analyzed as an example. The effectiveness of the proposed earthquake input method is verified. The effect of the obliquely incident earthquake is studied.

• The Korean Journal of Emergency Medical Services
• /
• v.22 no.2
• /
• pp.23-33
• /
• 2018

Purpose: To investigate the perception of paramedic students about core competence and methods of disaster response. Methods: A self-reported questionnaire was completed by 210 paramedic students in Jeollado from March 2 to April 2, 2018. It comprised 57 questions on topics such as general characteristics (6), related experience (11), cognition of core competence (15), and knowledge of disaster response methods (25). Data were analyzed by means of a frequency analysis, a t-test, an ANOVA, and the Pearson's correlation coefficient using SPSS WIN 21.0. Results: The average score of the participants on disaster response core competence was 3.21. The statement "In case of a disaster, I know the duties of medical staff" scored the second highest, at 3.58, and "In the case of disaster, I can conduct the basic treatment" scored the highest ar 3.59. The average score for the disaster response methods was 3.31. Within the section, the statement "I know what I need to do in the case of burn patients" scored 3.59 and "I know what I need to do in the case of a cardiac arrest patient" scored the highest at 3.93. Conclusion: It is necessary to develop a training module considering the diverse types of disasters and a standardized education program for simulation similar to real-life situations.

• The Journal of Korean Society for School & Community Health Education
• /
• v.24 no.4
• /
• pp.1-11
• /
• 2023

Objectives: This study aims to identify influencing factors of disaster nursing competency among school health teachers. Methods: Data were collected from 110 school health teachers at the offfice of education in G province using a convenience sampling method. Data were analyzed by descriptive statistics, t-test, ANOVA, Scheffe test, Pearson's correlation coefficients, and multiple regression analysis. Results: There was a significant difference in disaster nursing competency according to the general characteristics of the subjects in terms of clinical nurse work experience (t=3.40, p=.001) and disaster education experience (t=2.80, p=.006). Disaster perception and disaster nursing competency showed a significant positive correlation (r=.43, p<.001). In final analysis, disaster perception (𝛽=.35, p<.001), career as a nurse (𝛽=.23, p=.009), experience in disaster education (𝛽=.17, p=.048) was found to have a significant effect on disaster nursing competency. Conclusions: Based on the results of this study, disaster perception should be raised to improve the disaster nursing competency of school health teachers. Speicalized disaster nursing & health education based on their experience before appointing school health teachers and disaster response simulation training tailored to school field conditions should be regularly conducted.

• Journal of Oriental Neuropsychiatry
• /
• v.34 no.1
• /
• pp.43-59
• /
• 2023

Objectives: Although a manual for a disaster medical support using Korean medicine doctors for disaster survivors has been developed, education programs for using the manual in disaster situations need to be developed. Thus, the purpose of this study was to analyze existing online education programs for disaster mental health to develop education programs for Korean medicine doctors. Methods: We conducted website searching for disaster mental health education programs using Google. Compositions, contents, hours, methods, costs, organizers, and targets of included educational programs were analyzed qualitatively. Results: After searching, eight websites among a total of 64 were included for the analysis. Lectures consisted of Psychological First Aid, Skills for Psychological Recovery, Self-Care, and Psychological Education after a disaster experience. Training hours for each program ranged from 30 minutes to 31 hours. All lectures were given only online. They could only be taken online. Free lectures were the most common ones. Most of them were for the general public. Conclusions: Findings of this study provide information regarding trends of online education programs for disaster mental health. Our information could be used for developing disaster trauma response education programs for Korean medicine doctors in the future.

• Earthquakes and Structures
• /
• v.9 no.1
• /
• pp.173-194
• /
• 2015

Site response analysis is an important topic in earthquake engineering. A time-domain numerical method called as one-dimensional (1D) finite element artificial boundary method is proposed to simulate the homogeneous plane elastic wave propagation in a layered half space subjected to the obliquely incident plane body wave. In this method, an exact artificial boundary condition combining the absorbing boundary condition with the inputting boundary condition is developed to model the wave absorption and input effects of the truncated half space under layer system. The spatially two-dimensional (2D) problem consisting of the layer system with the artificial boundary condition is transformed equivalently into a 1D one along the vertical direction according to Snell's law. The resulting 1D problem is solved by the finite element method with a new explicit time integration algorithm. The 1D finite element artificial boundary method is verified by analyzing two engineering sites in time domain and by comparing with the frequency-domain transfer matrix method with fast Fourier transform.

• Earthquakes and Structures
• /
• v.16 no.6
• /
• pp.641-654
• /
• 2019

This paper investigates the seismic response of a typical non-navigable continuous girder bridge isolated with friction sliding bearings of the Hong Kong-Zhuhai-Macao link projects in China. The effectiveness of the friction pendulum system (FPS) and accuracy of the numerical model were evaluated by a 1/20 scaled bridge model using shaking table tests. Based on the hysteretic properties of friction pendulum system (FPS), double concave friction pendulum (DCFP), and triple friction pendulum system (TFPS), seismic response analyses of isolated bridges with the three sliding-type bearings are systematically carried out considering soil-pile interaction under offshore soft clay conditions. The fast nonlinear analysis (FNA) method and response spectrum are employed to investigate the seismic response of isolated offshore bridge structures. The numerical results show that the implementation of the three sliding-type bearings effectively reduce the base shear and bending moment of the reinforced concrete pier, at the cost of increasing the absolute displacement of the bridge superstructure. Furthermore, the TFPS and DCFP bearings show better isolation effect than FPS bearing for the example continuous girder bridge.

• Journal of the Korea Society of Computer and Information
• /
• v.24 no.9
• /
• pp.109-117
• /
• 2019

This study was attempted to provide fundamental data in a disaster response education program by comparing the differences between students of the paramedic and nursing in ego-resilience, disaster-experience and core competencies of disaster response. The data is collected from March 2 to April 2, 2019, on a total of 358 students (196 paramedic students and 162 nursing students) based in Jeolla Province. The structured questionnaire were used as research tools and the collected data were analyzed by using the SPSS program as frequency, percentage, t-test, ANOVA and Pearson's correlation coefficient. The average score of total ego-resilience among the subjects was 86.97 out of 125 points. The number of paramedic students who experienced or witnessed the disaster situation in person was 11.2%, and the number of nursing students was 11.7%. The core competence of disaster response was 3.21% in paramedic students and 3.16% in nursing students. The ego-resilience of the paramedic and nursing students according to their general characteristics is statistically significant differences (t=2.797, p<.005) and the paramedic students has an average score of 3.52 points, which is higher than the nursing students (3.42 points). General characteristics and experience in disasters are statistically significant differences (t=2.797, p<.005), paramedic students had more disaster experiences (3.11 points) than nursing students (2.67 points). It indicated the static correlation relationship between ego-resilience, disaster experience and core competences of disaster response (p<.000). Through this study, the paramedic students were found to be more ego-resilience, more disaster experience and more critical capacity for disaster treatment than nursing students.

• Journal of the Society of Disaster Information
• /
• v.12 no.2
• /
• pp.176-180
• /
• 2016

The full extent of damage depend greatly on the quick and rational decision making by the incident commander soon after the disaster. The decision that everybody should wait by the captain, not to enter into the ship by the first dispatched incident commander, broadcasting failure have brought about a huge loss of life at Sewol cruise ship incident. Thus this study reviews the training and education system supporting the rational crisis decision making performed by the incident commander to cut off the expansion of disaster which is caused by the failure of the incident situation awareness and the decision making described above.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.19 no.12
• /
• pp.287-293
• /
• 2018

The Korean peninsula has been known as an area that is free of volcanic disasters. However, recent observations and research results of volcanoes in Far East Asia, including Baedu Mountain and Japanese volcanoes, show that the Korean peninsula is no longer a safe area from volcanic disasters. Since 2012, the Korean government has been developing an IT-based construction technology, VDRS (Volcanic Disaster Response System), for effective volcanic disaster response system. The main users of VDRS are public officers in central or local governments. However, most of them have little experience and knowledge about volcanic disasters. Therefore, it is essential to develop education contents and implement training on volcanic disaster response for effective response in a real disaster situation. In this paper, we deal with the development of a mobile application based on virtual reality (VR) for realistic volcanic disaster response training. The objectives of training are the delivery of knowledge and experience for volcanic disasters. First, VR contents were generated based on spatial information. A 3D model was constructed based on a Digital Elevation Model (DEM), and visualization models for meterological effects and various volcanic disaster diffusion effects were implemented for the VR contents. Second, the mobile application for the volcanic disaster response training was implemented. A 12-step story board is proposed for volcanic disaster experience. The application was developed with the Unity3D engine based on the proposed story board to deliver knowledge of various volcanic disasters (volcanic ash, pyroclastic flows, volcanic mudflow etc.). The results of this paper will be used for volcanic disaster response and prevention training and for more realistic training linked with augmented reality technology in the future.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2022.10a
• /
• pp.314-317
• /
• 2022

This study was attempted to understand the relationship between disaster awareness, disaster attitude, and disaster response ability of the general public, and to be used as basic data to raise awareness of disasters and prepare countermeasures. This study was conducted from July 16 to July 31, 2021 for a total of 250 ordinary people living in K-do and D metropolitan cities. As a result of this study, it was found that it had an effect between disaster awareness, disaster attitude, and disaster response ability. Specifically, it was found that the general public's awareness of disaster had a significant effect on disaster attitude (necessity for disaster preparation, disaster management) (p<.001). In addition, among the sub-factors of disaster attitude, disaster management was found to have a significant effect on disaster response ability (p< .01). Therefore, specific and periodic education should be prepared to increase the ability to cope with disasters by increasing the general public's awareness of disasters.