• Journal of the Korean Society of Marine Environment & Safety
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• v.24 no.3
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• pp.346-351
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• 2018

The proportion of collision in the total marine accidents is high. The main causes of collisions are navigation rule violation, safety speed violation, neglected watch-keeping and improper collision avoidance action. There are two main ways of avoiding collision situations during maritime navigation: the method of altering course and reducing ship's speed. The purpose of this study is to analyze the result of the collision avoidance action of the reserve officer in case of encountering a multiple number of ships using the ship handling simulator. Full-mission ship handling simulator was used to experiment the situation scenarios that encountered multiple ships. After the experiment, the questionnaire about the experiment was investigated. A total of 50 subjects were participated in the experiment. Experimental results showed that the number of the experimenters who used the engine was 11 and the number of the experimenters who did not use the engine was 39. In the case of using the engine, there were 0 collision accident, 1 grounding accident, and 10 no accidents. However, when the engine was not used, there were 28 collision accidents, 2 grounding accidents, and 9 no accidents. The causes of these results can be found in the survey results. 74 % of the non used engine participants said they were hesitate to use the engine. As can be seen from these results, the reserve officer are hesitant to use the engine and need a way to get correct of it. Maritime course subject can emphasize the importance of using ship's engines and case study also can be it. So, It is considered that various case study scenario will need to developed by various tools in the future.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.8
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• pp.5273-5281
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• 2015

The purpose of this study is to examine the effects of health related departments' self-efficacy on stress-coping strategies by setting up grade and sex as regulating variables and figure out their mediating effects. To attain the goal, a survey was conducted to 1,442 undergraduates attending S University, and the results went through analysis by using SPSS and AMOS. To sum up the study results, preference of difficult project exerted negative effects on avoidance-centeredness. Self confidence had negative effects on avoidance-centeredness. Self-regulating efficacy indicated positive effects on social support-orientation and problem solving-centeredness while avoidance-centeredness showed negative effects. Regarding effects among self-efficacy's subfactors, confidence, self-regulating efficacy, and preference for task difficulty, and stress-coping strategies' subfactors, social support-orientation, problem solving-centeredness, and avoidance-centeredness, there was difference found in the model by grade, but there was no difference found by sex.

• Journal of Physiology & Pathology in Korean Medicine
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• v.28 no.4
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• pp.417-424
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• 2014

The purpose of this study was to analyze the psychobiological traits of each Sasang typology based on the Sasang Digestive function Inventory (SDFI) which measures the Sasang type-specific pathophysiological digestive symptom. The SDFI, Temperament and Character Inventory (TCI) and NEO-Personality Inventory (NEOPI) were measured with 199 College students. The correlation coefficient was measured with Pearson correlation among SDFI, TCI, and NEOPI. The influence of TCI, sex and age on SDFI and its subscales were analyzed with regression analysis. We also compared the psychobiological features between high and low SDFI score groups to elucidate its psychobiological profiles. There was significant correlation between SDFI and TCI Harm-Avoidance (r=-0.192, p<0.001). The SDFI subscales were showed to have significant correlations with subscales of NEOPI and TCI. The regression model with TCI can explain 8-16% of type-specific pathophysiological digestive symptoms. The low SDFI score group ($39{\pm}9.3$) has significantly (p=0.007) higher than the high SDFI group ($33.6{\pm}12.2$) in TCI Harm-Avoidance which is considered important for the gastrointestinal dysfunction and So-Eum type differentiation. We found that the TCI may explain the mechanism underneath the Sasang type-specific pathophysiological symptom. It was suggested that the TCI Reward-Dependence would be useful for the study on Tae-Eum Sasang type, and its clinical meanings were discussed in the pathophysiological perspectives.

• Journal of Gastric Cancer
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• v.19 no.1
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• pp.72-82
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• 2019

Purpose: Despite its clinical benefits, enhanced recovery after surgery (ERAS) is less widely implemented for gastric cancer surgery. This nationwide survey investigated the current status of the implementation of ERAS in perioperative care for gastric cancer surgery in South Korea. Materials and Methods: This survey enrolled 89 gastric surgeons from 52 institutions in South Korea. The questionnaire consisted of 24 questions about the implementation of the ERAS protocols in the management of gastric cancer surgery. The survey was carried out using an electronic form sent via email. Results: Of the 89 gastric surgeons, 58 (65.2%) answered that they have knowledge of the concept and details of ERAS, 45 (50.6%) of whom were currently applying ERAS for their patients. Of the ERAS protocols, preoperative education (91.0%), avoidance of preoperative fasting (68.5%), maintenance of intraoperative normothermia (79.8%), thromboprophylaxis (96.5%), early active ambulation (64.4%), and early removal of urinary catheter (68.5%) were relatively well adopted in perioperative care. However, other practices, such as avoidance of preoperative bowel preparation (41.6%), provision of preoperative carbohydrate-rich drink (10.1%), avoidance of routine abdominal drainage (31.4%), epidural anesthesia (15.9%), single-dose prophylactic antibiotics (19.3%), postoperative high oxygen therapy (36.8%), early postoperative diet (14.6%), restricted intravenous fluid administration (53.9%), and application of discharge criteria (57.3%) were not very well adopted for patients. Conclusions: Perioperative management of gastric cancer surgery is largely heterogeneous among gastric surgeons in South Korea. Standard perioperative care based on scientific evidence needs to be established to improve the quality of surgical care and patient outcomes.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.12 no.4
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• pp.97-108
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• 2017

The main purpose of this comparative study is to analyze the impact of uncertainty avoidance on the potential entrepreneurship of five developing countries through results of survey implemented to under- and postgraduate students of five developing countries such as Cambodia, Mongolia, Nepal, Peru and Rwanda. Futhermore, it is another purpose to compare the results of respondents by gender and scrutinize what impacts of the uncertainty avoidance have on male and female students' entrepreneurial orientation. First of all, the survey was conducted to under- and postgraduate students of five countries. Questions of the survey were composed of three parts: Locus of Control and Innovativeness for the individual entrepreneurial orientation and Uncertainty Avoidance for the cultural variable. The result of this study shows that the variable of entrepreneurial orientation is getting higher when Uncertainty Avoidance variable is becoming higher. On top of that, this is shown even in the gender comparison. It is the totally different result from precedent studies that shows correlation of entrepreneurship and culture. On the other hand, men's entrepreneurial orientation of five countries higher than women's according to the gender comparison.

• Journal of Korea Multimedia Society
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• v.17 no.9
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• pp.1104-1114
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• 2014

In large-scale crowd simulations, it is very important for the decision-making system of manipulating interactive behaviors to minimize the computational cost for controlling realistic behaviors such as collision avoidance. In this paper, we propose a large-scale realtime crowd simulation method using the affordance and navigation potential fields such as attractive and repulsive forces of electromagnetic fields. In particular, the model that we propose locally handles the realistic interactions between agents, and thus radically reduces the cost of expensive computation on interactions which has been the most problematic in crowd simulation. Our method is widely applicable to the expression and analysis of various crowd behaviors that are needed in behavior control in computer games, crowd scenes in movies, emergent behaviors of evacuation, etc.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2003.09a
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• pp.228-231
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• 2003

This paper presents the leg trajectory generation for the quadruped robot with genetic-fuzzy algorithm. To have the nobility even at uneven terrain, a robot is able to recognize obstacles, and generates moving path of body that can avoid obstacles. This robot should have its own avoidance algorithm against obstacles, forwarding to target without collision. During walking period, n robot recognizes obstacle from external environment with a PSD and some interface, and this obstacle information is converted into proper the body rotation angle by fuzzy inference engine. After this process, we can infer the walking direction and walking distance of body, and finally can generate the optimal Beg trajectory using genetic algorithm. All these methods are verified with PC simulation program, and implemented to SERO-V robot.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 1995.10a
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• pp.319-322
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• 1995

This paper addresses that through the use of Fuzzy Logic Control, a reactiv behavior (e.g. avoiding obstacles on the way) are smoothly blended into one sequence of control action. In this classical problem, the aim is to guide a mobile robot along its path to avoid any static obstacles in front of it. This controller presented here uses three sub-controllers. This fuzzy controller was apply to a miniature mobile robot. This robot follows a left wall, maintining a minimum distance.

• International Journal of Contents
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• v.12 no.3
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• pp.1-11
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• 2016

This exploratory study examines the critical factors associated with news consumers' perception of information overload and news consumption patterns. An online survey was conducted with Qualtrics panels (N = 1001). The demographics and three antecedent factors of perceived information overload were considered including the frequency of news access through multiple media platforms, level of attention to news, and interest in news. Three news consumption patterns were investigated as possible consequences of perceived information overload: news avoidance, selective exposure, and willingness to pay for news. The results of hierarchical regression analyses revealed a meaningful distinction between general and news information overload. Overall, news consumers who paid more attention to news through newer media/platforms/devices perceived higher levels of information overload, were more willing to pay for the news, and often avoided news or selectively exposed themselves to certain sources of news to manage news information overload.

• Journal of Navigation and Port Research
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• v.27 no.6
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• pp.611-618
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• 2003

It can be said that the relationship between the maneuvering ability of operators and the navigational environment affects the safe degree of navigation in the collision avoidance situation. In order to reduce the occurrence probability of accident and to maintain the safety, it is necessary to clarify the relationship between human behavior and navigational environment. In this study, therefore, we analyzed and discussed the relationship between the maneuvering characteristics and the safety focused on human behavior as a fundamental factor of marine accidents using ship handling simulator and questionnaire. As a result, we concluded that navigational environment changes variously and the maneuvering ability of operators also varies with the navigational environment, and the ship handling characteristics strongly affect the occurrence probability of accident.