• 해양환경안전학회지
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• 제28권3호
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• pp.423-429
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• 2022

Ship reporting systems are used to exchange information between ship and shore. To realize the digital ship reporting concept, the International Maritime Organization (IMO) recently developed revised guidelines and descriptions of Maritime Service for ship reporting systems in the context of e-navigation. To improve the existing ship reporting system, each Administration should follow the IMO guidelines for ship reporting system. The purpose of this paper is to identify follow-up measures to be taken by the Korean Government as a member State according to the recently developed IMO guidelines in the context of e-navigation, and to present the considerations for the implementation of follow-up measures in Korea. In this study, a ship reporting system in Korea was investigated to identify the considerations for the digital ship reporting system. Consequently, a digital reporting system and digital traffic clearance were proposed and considerations for ship reporting system are presented. This paper is expected to be helpful for the safe operation of ships by presenting the considerations necessary for the implementation of an automated and standardized ship reporting system.

• 한국시뮬레이션학회논문지
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• 제19권4호
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• pp.1-9
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• 2010

본 논문에서는 여객선의 승객 비상 탈출 시뮬레이션을 구현하였다. 승객의 행동에 미치는 요인 중 연령, 성별을 고려하여 승객 개인의 보행 속도에 반영하는 속도 기반 모델을 사용하였다. 승객들의 집단 이동을 구현하기 위해 플로킹 알고리즘을 적용하였다. 장애물과의 충돌 회피 및 승객 간의 위치가 겹치는 현상을 방지하기 위해 페널티 보행 속도를 도입하였다. 이 알고리즘을 이용하여 여객선의 승객 탈출 규정인 IMO (International Maritime Organization) MSC (Maritime Safety Committee) Circ.1238에서 정의한 11가지 시험 문제에 적용하였다. 시험 문제를 통해 승객의 위치가 겹치는 현상이 없이 시뮬레이션 되는 것을 확인하였다.

• International Journal of Computer Science & Network Security
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• 제23권8호
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• pp.63-76
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• 2023

Identity and access management in cloud computing is one of the leading significant issues that require various security countermeasures to preserve user privacy. An authentication mechanism is a leading solution to authenticate and verify the identities of cloud users while accessing cloud applications. Building a secured and flexible authentication mechanism in a cloud computing platform is challenging. Authentication techniques can be combined with other security techniques such as intrusion detection systems to maintain a verifiable layer of security. In this paper, we provide an interactive, flexible, and reliable multi-factor authentication mechanisms that are primarily based on a proposed Authentication Method Selector (AMS) technique. The basic idea of AMS is to rely on the user's previous authentication information and user behavior which can be embedded with additional authentication methods according to the organization's requirements. In AMS, the administrator has the ability to add the appropriate authentication method based on the requirements of the organization. Based on these requirements, the administrator will activate and initialize the authentication method that has been added to the authentication pool. An intrusion detection component has been added to apply the users' location and users' default web browser feature. The AMS and intrusion detection components provide a security enhancement to increase the accuracy and efficiency of cloud user identity verification.

• Membrane and Water Treatment
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• 제13권1호
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• pp.1-6
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• 2022

The regulations of the International Maritime Organization (IMO) have been steadily strengthened in ship emissions. Accordingly, there is a growing need for development of related technologies for the removal of contaminants that may occur during the treatment of SOx and NOx using a wet scrubber. However, this system also leads to wastewater production when the exhaust gas is scrubbed. In this research, we evaluated the performance of an ion selective resin process in accordance with scrubber wastewater discharge regulations, specifically nitrate discharge, by the IMO. Accelerated real and synthetic wastewater of wet scrubbers, contained high amounts of TDS with high nitrate, is used as feed water in lab scale systems. Furthermore, a pilot scale dissolved air flotation (DAF) using microbubble generator with ion exchange resin process was combined and developed in order to apply for the treatment of wet scrubber wastewater. The results of the present study revealed that operating conditions, such as resin property, bed volume (BV), and inlet wastewater flow rate, significantly affect the removal performance. Finally, through a pilot test, DAF with ion exchange resin process showed a noticeable improvement of the nitrate removal rate compared to the single DAF process.

• 산업경영시스템학회지
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• 제47권2호
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• pp.93-106
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• 2024

As the complexity and uncertainty of international construction projects increase, the importance of risk management capabilities in the construction industry has become more pronounced. Accordingly, Enterprise Risk Management (ERM) has become a widely adopted approach among organizations as a new way for more effective risk management. Despite its growing application, research related to ERM is still in its infancy, and most of the existing studies have been limited to financial industries. Therefore, this study aims to empirically examine the influence of ERM's core elements on project risk management (PRM) and project performance within construction firms. Our findings indicate that the key ERM components-organization, policy, and culture-significantly enhance PRM processes, underscoring their critical role and importance. Additionally, effective PRM positively affects project outcomes, highlighting its significance for construction companies engaged in international projects. While ERM does not directly impact project performance, it indirectly improves outcomes through enhanced PRM capabilities. It suggests that ERM will contribute to the firm's performance by improving the firm's PRM capability through policies and a risk-focused culture corresponding to the adopted ERM organization and system..

• 항공우주정책ㆍ법학회지
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• 제20권1호
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• pp.109-142
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• 2005

본 연구의 목적은 제2차 세계대전 이후의 국제정치질서와 국제항공질서를 비교하여, 한미항공협정에 미친 영향력을 찾아보고, 향후의 국제항공협정의 전망을 해 보는것이다. 현실주의 국제정치와 국제항공정책의 패권적 힘에 의한 국제항공질서의 편성에서 2차 대전 이후의 한미 항공협정이 강대국의 영향력에서 불균형하게 형성된 것에서 시작하여, 1970년대 후반의 신 현실주의의 영향력에서 형성된 국제항공 자유화정책에 따라 1979년도의 한미항공협정의 개정을 통해서 상당한 개방의 방향으로 개정되었다. 그리고 1990년대의 국제정치의 구성주의적 협력의 정치의 영향으로 미국과 네델란드 간의 항공자유화협정을 시작으로 상호협력을 위한 인식의 공유와 전문지식의 공유를 통해서 이제 사용자를 위한 국제항공협정으로 개정 발전되어 왔다. 향후로는 보다 시민이나 이용자를 위한 항공협정으로 발전하게 될 것으로 전망하고 있다.

• 항공우주시스템공학회지
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• 제14권3호
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• pp.32-41
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• 2020

국제민간항공기구(ICAO)는 항공기 등록국가별 정비조직인증 및 감독활동에 대한 산업계 및 항공당국의 중복 업무 및 규제부담을 경감할 목적으로 정비조직인증 국제인정(AMO Global Recognition)체계에 대한 로드맵을 2015년에 제시하였다. 이후 ICAO는 2024년 이 체계 시행을 목표로 ICAO 표준 및 지침서등을 순차적으로 개정하고 있다. 우리나라는 ICAO의 로드맵 대응 목적뿐만 아니라 국내 항공정비산업(MRO)의 발전을 위해서도 정비조직인증 국제인정체계를 적극적으로 준비하여야 한다. 이에 본 논문에서는 정비조직인증의 핵심 분야인 업무한정체계에 대한 ICAO 표준 검토 및 항공선진국 제도와 국내 제도를 비교분석하여 차이점 및 보완사항을 식별하고 관련 법규의 개선 방향을 제시하였다.

• International Journal of Computer Science & Network Security
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• 제21권8호
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• pp.327-341
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• 2021

The knowledge management was considered as the inevitable result of the rule of knowledge in this era, and its importance became clear in being the main source for achieving success, the need to consider and manage knowledge as an independent field that must be addressed with a clear scientific methodology has become intangible - they are very valuable and a strategic asset. On the other hand, the innovation process relates to all parts of the organization, and helps to improve the behavioral patterns of individuals and their attitudes towards adopting modern and innovative ideas, it is a purposeful process adopted by the senior management and works to provide the capabilities and requirements for embodying the innovative behavior in it. In the field of dealing with the market, it is a product of the organization's innovative approach, which aims at advancement, change, and intended and organized renewal. The main objective of this article is to determine the most appropriate ways to integrate knowledge management mechanisms to employ innovation factors within universities based on the role of universities in supporting innovation. This was achieved through reviewing many relevant research and listing the most prominent concepts of knowledge management, its importance, objectives, and processes determining the stages of knowledge management application, the requirements for applying knowledge management, and the obstacles that impede its application; Then the statement "Innovation in universities, through which it addressed the concept of innovation, its importance, stages, and requirements for its application, as well as identifying the most prominent models of innovation, and obstacles to innovation, in addition to that the role of universities in supporting innovation will be identified. From the surveyed study done in this article, we concluded that the relationship among organizational culture, knowledge management and innovation capability can provide useful insights for managers regarding developing a strong culture, promote knowledge management practices effectively and eventually enhance the whole organization's innovation capability. Also, we found that different components of Knowledge Management as Knowledge activities, Knowledge types, transformation of knowledge and technology have a significant positive effect in bringing innovation through transformation of knowledge into knowledge assets in universities.

• International Journal of Computer Science & Network Security
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• 제22권1호
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• pp.347-357
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• 2022

The aim of the study is to model demand for full-time Bachelor's Degree Programs in Hospitality and Catering, taking into account the influence of the main determinants in the COVID-19 pandemic. The research used methods of algorithms, correlation and regression analysis, ANOVA, graphical method, deduction and induction, abstraction, etc. It was found that the demand for full-time Bachelor's Degree Programs in Hospitality and Catering is price elastic. It has been argued that it is useful to consider both price and non-price determinants when modelling demand for full-time Bachelor's Degree Programs in Hospitality and Catering. It is proved that the main determinants of demand for full-time Bachelor's Degree Programs in Hospitality and Catering are full-time tuition fee, maximum government order, license volume and Consolidated Ranking of a higher education institution (HEI). In this case, the applicant decides to enrol in a full-time Bachelor's Degree Program in Hospitality and Catering, guided by the optimal ratio of tuition fee and the prestige of the HEI.

• 한국항행학회논문지
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• 제26권5호
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• pp.249-260
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• 2022

비행교육을 받는 학생 조종사들은 조종 및 상황판단 능력이 미숙하며 심리적, 육체적, 환경적 등 다양한 요소에 의해 많은 영향을 받는다. 특히 학생 조종사들의 비행교육에 가장 많은 영향을 미치는 요소 중 하나는 기상상태이다. 항공운송사업에 사용되는 대형 항공기와 달리 비행교육에 사용되는 소형 항공기는 기상조건에 따라 비행 제한, 악기상에서는 심리적 압박, 학생 기량 저하 등 교육에 많은 영향을 준다. 그러므로 본 연구에서는 소형 항공기에 많은 영향을 미치는 기상요소에 대한 기상 특성에 대해 분석을 하였다. 분석 결과 계절에 대한 교육 시기 조절, 항공기 가동률 증가, 기상을 고려한 안전한 단독비행 계획을 통하여 조종사 양성 전문교육기관에 효율적이고 안전한 교육훈련 운영방법을 제시하였다.