• Proceedings of KOSOMES biannual meeting
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• 2017.11a
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• pp.215-215
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• 2017

• Transactions of the Korean Society of Mechanical Engineers A
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• v.36 no.6
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• pp.623-628
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• 2012

Conventional path planning methods have focused on the generation of an optimal shortest path to the goal. However, this optimal path cannot guarantee safe navigation, because it can often lead to a narrow area. Therefore, we propose a Coulomb's law-based safe path planning method that uses an information grid map. The information grid map includes four types of information: occupied, empty, guide, and dangerous areas. A safe path can be generated away from the dangerous area and close to the guide area by repulsive and attractive forces, respectively. Experiments and simulations show that the proposed method can generate paths inside the safe region and is useful for safe navigation.

• Journal of the Korean Society for Library and Information Science
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• v.51 no.3
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• pp.163-188
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• 2017

This study aims to propose disaster safety information service model based on LOD for effective management and dissemination of the information. To achieve the aim of this study, current state of disaster safety information was analyzed through online search and face-to-face interviews, and then the information was divided into 6 types. Finally, this study proposed specific process of building disaster safety information LOD service with considerations reflecting the information characteristics. The process for building LOD was based on Guidelines for Building Linked Data written by National Information Society Agency. Especially, ontology concept model was defined by using standard lexical resources and modeling tools based on 6 types of disaster safety information, and classes and properties were proposed. The results of this study will make disaster safety information more useful for common people.

• Journal of Digital Convergence
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• v.13 no.6
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• pp.185-195
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• 2015

This study aims to study the change in the level of awareness of medical personnels regarding the patient safety culture(PSC) before and after the Leadership WalkRounds(LWR). The LWR in this study was based on the IHI and the models of the Patient Safety Rounds(PSRs) at University of Michigan, emphasizing the 5 steps of Preparation--Scheduling--Conducting--Reporting--Resolving. After the LWR the scores for the level of awareness showed a statistically significant increase from 2.63 to 3.36(p<.001). Among the participants, those who are pharmaceutists, women, 30.0~39.9 years old, or had work experience of a year or less showed particularly notable increase in awareness. The effect was significant across all categories of PSC, especially in Safety Accident Reporting(p<.001), then in Communication(p<.001). Therefore the LWR proved an convergent concept for applying new leadership skill and the concept of patient safety management as an method to elevate the frontline staffs' awareness of PSC.

• Korean Security Journal
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• no.53
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• pp.231-251
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• 2017

Taekwondo has developed into a global sport that sports 80 million people from 208 countries around the world. Korea is the mother country of Taekwondo, and there are many international Taekwondo events in Korea. As important as the image of Taekwondo contents, it will be operation plan and management for event facilities. In particular, safety management for participants is more important than anything else. In case of Taekwondo where there are many national events, there are many foreign visitors, so safety management in facilities and running programs needs to be important. In this study, we conducted in - depth interviews with experts with a career in Taekwondo events. Based on the in - depth interviews, we analyzed the safety management problems of the international Taekwondo events and suggested improvement directions to overcome them. Based on the results of these researches, the improvement direction of Taekwondo event safety management proposed in the first category is a demand for improving safety and injury related system construction. The second category, the safety improvement of visitors, is to secure professional manpower and secure budgets. Also, what is important in the third category, facility safety area, is the proposal to introduce facility safety certification system.

• The Journal of the Convergence on Culture Technology
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• v.9 no.3
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• pp.669-676
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• 2023

This study analyzed the relationship between major parameters and numerical analysis results according to various excavations conducted around the urban railway, application of machine learning techniques and verified the scope of influence of the adjacent excavation on the existing urban railway box structure and the appropriateness of the safety area. This study targeted the actual negotiated adjacent excavation works and box structures around the urban railway, and the analysis was conducted on the most representative two-line box structures. The analysis confirmed that the difference in depth of urban railway, excavation depth of adjacent excavation, and depth of underground water level are important parameters, and the difference in excavation depth of adjacent excavation is the parameter that affects the behavior of underground box structures and is an important requirement for setting safety areas. In particular, the deeper the depth of the adjacent excavation work, the greater the effect on the deflection of the underground box structure, and the horizontal separation distance, one of the important requirements for determining the management grade of the existing adjacent excavation work, is relatively small.

• Journal of the Korean Society for Library and Information Science
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• v.50 no.2
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• pp.77-100
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• 2016

The study, on the one hand, reflects the recent social interest in crisis management including user safety and library disaster preparation, and, on the other hand, presents a detailed safety management manual that is a reference for library work sites concerning accidents that may occur in public libraries. The proposed safety management manual consists of safety management elements for the four areas of 'safety management planning', 'safety management for each crisis type', 'information resource restoration', and 'safety management checklist', as well as their detailed sub-categories. This allows each public library site to use the manual to establish safety management plans according to their situation and educate their employees.

• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
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• 2003.07a
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• pp.283-288
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• 2003

이 논문에서는 Manabe［2］에 의해 제안된 그룹상호배제를 위한 쿼럼(Quorum)기반의 알고리즘을 바탕으로 암호 기법을 이용한 보다 안전한 분산 알고리즘에 대하여 논한다. 그룹 상호배제는 하나의 리소스를 같은 그룹 내의 모든 프로세스에 의해서 공유되도록 할 수 있는 상호배제의 일반화이다［1］［4］. 하지만, 다른 그룹의 프로세스들은 상호 배타적인 방법으로 하나의 리소스를 사용하도록 요청된다. 즉, 다른 그룹의 프로세스들은 이미 임계영역에 있는 프로세스가 그 리소스에 대한 사용이 끝난 후 임계영역에 들어갈 수 있다. 분산 컴퓨팅 분야에서 계속적으로 제안된 알고리즘은 실제 개방된 인터넷상에서 각 프로세스들 간의 안전한 통신이 이루어져야 함에도 불구하고 프로세스들 간의 상호배제에만 초점을 맞춤으로서 안전성을 전혀 고려하지 않고 있다. 이 논문에서는 분산알고리즘에 암호학적 기법을 적용한 안전한 분산 알고리즘을 제시한다.

• 한국항공운항학회:학술대회논문집
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• 2015.11a
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• pp.286-288
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• 2015

국내 전체 조종사 배출 인원은 연 평균 1,200여명을 훌쩍 넘긴 가운데, 이 중 항공기사용업체를 통해 배출된 조종사 인원은 최근 5년 사이 2~3.5배 이상의 증가추세를 보이며 약 650여명 이상을 배출함으로써 전체 인원의 반 이상을 차지하고 있다. 그러나 현행 법령은 비행훈련과정을 운영하는 대학을 포함하여 항공기사용사업의 업무영역을 고려한 등록 요건 및 안전 고려가 부족하며, 비행훈련은 미래의 조종사를 양성하는 중요한 영역임에도 불구하고 훈련프로그램에 관한 요건이 규정되지 않아 비행안전은 물론, 양질의 조종사 인력양성을 위한 제도적 장치가 부족한 상황이다. 본 연구는 최근 발생한 항공기 사고/준사고 및 안전장애 유형을 토대로 항공기사용사업체에 대해 분석하고, 시행중인 비행훈련에 대한 법과 제도, 안전관련 개선방안에 대해 살펴보고자 한다.

• Journal of Nutrition and Health
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• v.49 no.3
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• pp.189-200
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• 2016

Purpose: This study analyzed job importance, job performance, and job satisfaction in 38 dietitians working at geriatric hospitals and elderly healthcare facilities in Jeju surveyed from September 15-24, 2014 with the aim of providing basic data for improving the quality of meals and nutrition management for elderly patients. Methods: Data were analyzed using descriptive analysis, ${\chi}^2$-test, t-test, ANOVA, and Pearson's correlation coefficients using the SPSS Win program (version 12.0). Results: Regarding job importance, the average score was 4.29 (out of 5), indicating that hygiene and safety management scored the highest at 4.77 (out of 5), and nutrition management scored the lowest at3.86. In terms of job performance of subjects, the average score was 2.87 (out of 5), indicating that cooking operation management scored the highest at 4.42 (out of 5). Regarding the Importance-Performance Analysis (IPA) of job importance and job performance, hygiene and safety management and cooking operation management scored high for importance and performance (B quadrant) menu management, human resource management, and nutrition management scored low for importance and performance (C quadrant) and purchasing management and financial management were included inD quadrant and A quadrant, respectively. For the level of job satisfaction of subjects, the average score was 3.37 (out of 5), indicating that relationships with colleagues scored the highest at 3.72, and improving professionalism scored the lowest at 2.95. Additionally, job importance and performance of subjects were positively correlated withjob satisfaction (r = 0.395, r = 0.386, both p < 0.05). Conclusion: In conclusion, scores for job importance and job performance of nutrition management were low, and job satisfaction of improving professionalism scored low. Therefore, continuous training and education programs of nutrition management should be provided to improve professionalism of dietitians at geriatric hospitals and elderly healthcare facilities.