• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2016.05a
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• pp.59-61
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• 2016

안전한 선박운항과 해양사고 예방을 위해서는 선박소유자를 비롯한 해운회사 경영진의 안전의식 내재화와 안전을 최우선으로 생각하는 인식의 변화가 요구된다. 그러나 해양사고 예방을 위한 교육은 주로 선박운항 종사자를 대상으로 시행되고 있고 안전의 최고 의사결정자인 선사의 경영진을 대상으로 한 교육 프로그램은 부족한 상황이다. 이에 해양수산부에서는 2015년부터 선사 CEO 해양안전리더 교육을 실시하고 있다. 이 교육의 대상은 해운선사의 경영진이며 안전에 대한 이론, 실무, 타 회사의 안전경영 사례 등을 공유하여 교육수료자가 해양안전 리더로서 선도적으로 안전경영을 해나가도록 유도하고 안전문화를 정착시키는데 목적을 두고 있다. 따라사 교육 프로그램의 내용과 교육대상자의 교육만족도는 향후 교육 프로그램의 개선, 발전을 위해 중요한 사항이라 할 수 있다. 본 연구에서는 해양안전리더 교육 프로그램의 만족도를 조사하여 분석함으로써 교육과정 개선 등에 활용될 수 있을 것으로 기대된다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2015.07a
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• pp.43-45
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• 2015

선사 CEO에게 안전이 기업 경쟁력의 핵심임을 인식시켜 안전을 최우선으로 하는 경영문화가 업계에 정착되도록 유도하고자 목포해양대학교에서는 해양수산부의 위탁을 받아 선사 CEO를 대상으로 해양안전리더 교육을 시행하고 있다. 안전경영에 대한 선사 경영진의 의식전환과 가치정립은 해양사고 저감을 위한 전제요건이나, 해양종사자에 대한 교육만 이루어지고 있을 뿐 회사 경영층을 대상으로 한 교육은 아직까지 미미한 수준이다. 따라서 선사의 경영층을 대상으로 안전에 대한 이론과 실무, 타 회사의 안전경영 사례 등을 공유할 수 있는 교육기회를 제공함으로써 해양안전리더로서 선도적으로 안전경영을 해나가도록 유도하고, 추가적으로 선사 CEO가 생각하는 안전 Key Words가 무엇인지 델파이기법을 활용하여 도출해 보고자 한다.

• Journal of Intelligence and Information Systems
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• v.29 no.3
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• pp.103-123
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• 2023

This study empirically investigated the relationship between workers' safety behavior and safety leadership, trust in leader, workers' involvement, and safety knowledge in the enterprise, and analyzed the role of the factors to identify and analyze factors that enhance workers' safety behavior that contribute to the prevention of major accidents in the enterprise. When industrial accidents occur, companies have to bear huge loss costs due to direct costs of compensating the victims and indirect costs such as human loss, material loss, production loss, and time loss. Based on the results of previous studies, this study investigated the effects of managerial safety leadership and workers' trust in leader on safety behavior through the mediation of workers' involvement and safety knowledge among production, technical, and labor workers in the manufacturing industry. Statistical analysis was conducted on 271 manufacturing workers using SPSS and PLS. The results showed that safety leadership and trust in leader can lead to workers' involvement and have a positive effect on workers' safety knowledge acquisition, which can lead to workers' safety behavior.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.34 no.10C
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• pp.946-954
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• 2009

General RFID system has assumed that the communication channel between reader and back-end database is secure channel. However, the reader can be communicated with the database through insecure channel like the communication channel between the reader and the tag according to application environment. In this paper, we propose a new secure RFID mutual authentication protocol based on open network channel which assumed that all communication channels between the database, the reader and the tag are insecure communication channels. The proposed protocol uses a secure one-way hash function to provide authentication and integrity against all communication messages which exchanged on the open channels. In addition, we designed that the proposed protocol can provide forward secrecy by performing the database and the tag update their old secret key with a new secret key after finished mutual authentication.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2007.05a
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• pp.239-245
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• 2007

차세대 유비쿼터스 환경에서 중요한 기술적, 산업적 위치를 차지하는 RFID 네트워크에는 다수의 RFID 리더(Reader)와 수많은 RFID 태그(Tag)들이 통신을 하면서 존재하게 된다. 이러한 RFID 네트워크에서 리더와 태그간의 원활한 통신을 위해서는 주파수 충돌이 발생하지 않아야 한다. 주파수 충돌 현상은 리더와 다수의 태그들 간의 태그 충돌(Tag Collision)과 리더간 주파수 간섭으로 인한 리더간 충돌(Reader Collision)로 나뉘어 질 수 있다. 따라서 리더간 충돌 현상을 피하기 위해서는 근접한 리더들 간에 서로 다른 타임슬롯(Timeslot)을 사용하여 태그와 통신을 시도하여야 한다. 본 연구에서는 RFID 네트워크에서 다수의 리더간 충돌을 최소화하며 안전한 태그 인식을 할 수 있도록 타임 슬롯 할당 문제를 CSP(Constraint Satisfaction Problem)로 접근한다. 그리고 CSP를 풀기 위해 리더간 충돌 문제가 가지고 있는 제약조건을 찾아내고 해를 찾기 위한 목적함수를 모델링 한다.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2004.11a
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• pp.480-485
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• 2004

The main purpose of this study is to present the scheme to reinforce the leadership of field supervisors in order to effectively prevent construction accidents. To this end, first, the researcher reviewed the meanings, functions, types and characteristics o( the leadership of field supervisors in safety management activities on construction sites through the literature review. Second, he investigated the types of supervisors' leadership and the level of field safety management activities through qestionnaires. Third, he categorized the types of supervisors' leadership by that level. Fourth, lie suggested the leadership type of field supervisors to effectively prevent construction accidents, and then he developed the plans to reinforce their leadership.

• Product Safety
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• s.186
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• pp.42-45
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• 2009

• Product Safety
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• s.215
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• pp.58-59
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• 2011

• Journal of the Korea Institute of Information Security & Cryptology
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• v.20 no.4
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• pp.89-108
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• 2010

Recently many mutual authentication protocol for light-weight hash-based for RFID have been proposed. Most of them have assumed that communications between a backend server and reader are secure, and not considered threats for backend server and RFID reader impersonation. In the real world, however, attacks against database or reader are more effective rather than attacks against RFID tag, at least from attacker's perspective. In this paper, we assume that all communications are not secure to attackers except the physical attack, and considering realistic threats for designing a mutual authentication protocol based on hash function. And It supports a mutual authentication and can protect against the replay attack, impersonation attack, location tracking attack, and denial of service attack in the related work. We besides provide a secure and efficient RFID mutual authentication protocol which resists impersonation attacks on all of the entities and alow a backend server to search tag-related information efficiently. We conclude with analyzing the safety and efficiency among latest works.

• The Journal of the Korea Contents Association
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• v.21 no.3
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• pp.478-489
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• 2021

This study aimed to demonstrate the dual mediating effect of psychological safety(PS) and silence climate(SC) in the process of team leader's self-deception behavior(SD) influencing team learning(TL). We conducted a survey of 294 workers in domestic companies and analyzed the data statistically using SPSS 21 and SPSS Process Macro for hierarchical regression and bootstrapping. The results are as follows: 1. all correlation coefficients are significant showing that SD has positive correlations with SC and negative correlation with PS and TL, 2. simple mediation effects(SD-PS-TL and SD-SC-TL) are all significant, 3. the dual mediation effect of psychological safety and silence climate on the relation between team leader's self-deception behavior and team learning(SD-PS-SC-TL) is verified. This study showed that the authenticity of team leaders could be an crucial element for organizational communication and effectiveness. Finally, limitations and suggestions for future research were discussed.