• 한국철도학회:학술대회논문집
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• 한국철도학회 2009년도 춘계학술대회 논문집
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• pp.1376-1382
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• 2009

Railway system is a word that includes rolling stock, railway infrastructure and signalling System in passenger transfer and rail freight. This system get higher competitiveness in energy efficiency part than other transfer system. But it is comprehensive system has latent loss of lives and property by big accident. First of all, to control this comprehensive system and to confirm safety of it, we need human resource management. This research will suggest how to apply efficiency safety verification and certification system to railway system. human resource management systems is defined as three kinds that is recruitment and management, ensure personnel's competencies and fitness, activity of assigning suitable responsible person for work.

• 한국항공운항학회지
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• 제6권1호
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• pp.165-178
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• 1998

The worldwide improvement of the safety, efficiency and rationality in the field of aircraft operation environment and certificate management of aviation personnel has been proceeded cheerfully as a part of each country's globalization movement. Considering the importance of aviation transportation industry supporting nation's international trading has the competition among the airlines regarded possibly as that among the countries. In order to make Korean Government and Airlines more competitive in this race, the standardization and generalization of aviation regulations are required. On this study, some amendments are recommended to improve regulations and systems for pilot's certification management and operation environment by comparison analysis of regulations of ICAO, FAA and Korean aviation law.

• International journal of advanced smart convergence
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• 제12권2호
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• pp.173-181
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• 2023

Data collection is an essential element in the construction and operation of a smart factory. The quality of data collection is greatly influenced by network conditions, and existing wireless network systems for IoT inevitably lose data due to wireless signal strength. This data loss has contributed to increased system instability due to misinformation based on incorrect data. In this study, I designed a distributed MQTT IoT smart sensor and gateway structure that supports wireless multicasting for smooth sensor data collection. Through this, it was possible to derive significant results in the service latency and data loss rate of packets even in a wireless environment, unlike the MQTT QoS-based system. Therefore, through this study, it will be possible to implement a data collection management system optimized for the domestic smart factory manufacturing environment that can prevent data loss and delay due to abnormal data generation and minimize the input of management personnel.

• 한국산업보건학회지
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• 제29권2호
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• pp.217-225
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• 2019

Objectives: The aim of this study is to evaluate the quality management systems of domestic asbestos survey and monitoring service providers and the relationships with the number of licenses or designations and sales performances. Methods: Data on quality management systems were collected by assessors who were assigned by the Korea Occupational Safety and Health Agency(KOSHA) during a pilot evaluation program for designated asbestos survey and monitoring service providers in 2016 using evaluation criteria developed by KOSHA. Basic characteristics, evaluated scores, and sales performance were gathered and statistically analyzed. Results: The median and arithmetic mean of the total scores were 0.64 and 0.66. Evaluation fields that scored highly with the highest percentages were sales performance, installation and availability of equipment, compliance with the mandatory minimum number of airborne samples, laboratory independence, and results of proficiency analytical testing, in that order. Evaluation fields that received low marks with the highest percentages were the training of personnel, blank field samples, calibration of flow rates, preliminary check and visual inspection of the work area prior to the clearance test, and review and approval of final reports, in that order. Comparison of normalized scores between service providers registered for asbestos and other tasks and those designated for only asbestos showed significant differences in their evaluated scores. Sales performance did not show a positive correlation with evaluated scores. Conclusions: The quality management systems of domestic asbestos survey and monitoring service providers were poor. High scores were recorded mostly in evaluation fields related to regulatory requirements. Low scores were recorded mostly in evaluation fields related to documentation and recordkeeping. Considering the low influence of quality on sales performance, the government needs to evaluate the quality management of asbestos survey and monitoring service providers and provide the results to public in order to address their low levels of quality management.

• 대한안전경영과학회지
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• 제17권3호
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• pp.195-204
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• 2015

The live fire test has been playing a critical role in evaluating the goals-to-meet of the weapon systems which utilize the power of explosives. As such, the successful development of the test systems therein is quite important. The test systems development covers that of ranges and facilities including system-level key components such as mission control, instrumentation or observation, safety control, electric power, launch pad, and so on. In addition, proper operational guidelines are needed with well-trained test and operation personnel. The emerging weapon systems to be deployed in future battle field would thus have to be more precise and dynamic, smarter, thereby requiring more elaboration. Furthermore, the safety consideration is becoming more serious due to the ever-increasing power of explosives. In such a situation, development of live fire test systems seems to be challenging. The objective of the paper is on how to incorporate the safety and other requirements in the development. To achieve the goal, an architectural approach is adopted by utilizing both the system components relationship and safety requirement when advanced instrumentation technology needs to be developed and deteriorated components of the range are replaced. As an evaluation method, it is studied how the level of maturity of the test systems development can be assessed particularly with the safety requirement considered. Based on the concepts of both systems engineering and SoS (System-of-Systems) engineering process, an enhanced model for the system readiness level is proposed by incorporating safety. The maturity model proposed would be helpful in assessing the maturity of safety-critical systems development whereas the costing model would provide a guide on how the reasonable test resource allocation plan can be made, which is based on the live fire test scenario of future complex weapon systems such as SoS.

• 한국안전학회지
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• 제35권2호
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• pp.8-16
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• 2020

In Article 311 of the Regulation on Occupational Safety and Health Standards requires the use of Korean Industrial Standards Act in accordance with the Industrial Standardization Act. However, the classification, inspection, maintenance, design, selection, and installation of explosion hazard locations for explosion and explosion prevention and internalization of 'safety' in the performance maintenance phase of electrical machinery and equipment There is no technical and institutional management plan for remodeling and alteration. Analysis of actual conditions and problems related to the installation, use, and maintenance of explosion-proof equipment, comparative analysis of domestic and international technical standards and systems, technical, institutional and administrative systems and systems related to installation, use, and maintenance of explosion-proof equipment, technical personnel and qualifications, etc. It is to propose legislation, system improvement, and technical standard establishment related to the maintenance of explosion-proof facility performance through improvement of the necessity and feasibility study for establishment of the legal status of the management site and management plan. As technical measures, KS standard revision (draft), KOSHA guide (draft) and explosion-proof facility performance maintenance manual were presented. In addition, the institutional management plan proposed the revised rule on occupational safety and health standards, the revised rule on the restriction of employment of hazardous work, and the manpower training program related to the maintenance of explosion-proof facilities and the qualification plan. Enhance safety at the installation, use, and maintenance stage of explosion-proof structured electrical machinery. It is expected to be used to classify explosion hazards, select related equipment, and to update and standardize standards related to installation, use and maintenance.

• 한국IT서비스학회지
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• 제23권1호
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• pp.1-10
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• 2024

The IT environment is changing due to the acceleration of digital transformation in enterprises and organizations. This expansion of the digital space makes centralized cybersecurity controls more difficult. For this reason, cyberattacks are increasing in frequency and severity and are becoming more sophisticated, such as ransomware and digital supply chain attacks. Even in large organizations with numerous security personnel and systems, security incidents continue to occur due to unmanaged and unknown threats and vulnerabilities to IT assets. It's time to move beyond the current focus on detecting and responding to security threats to managing the full range of cyber risks. This requires the implementation of asset Inventory for comprehensive management by collecting and integrating all IT assets of the enterprise and organization in a wide range. IT Asset Management(ITAM) systems exist to identify and manage various assets from a financial and administrative perspective. However, the asset information managed in this way is not complete, and there are problems with duplication of data. Also, it is insufficient to update of data-set, including Network Infrastructure, Active Directory, Virtualization Management, and Cloud Platforms. In this study, we, the researcher group propose a new framework for automated 'Comprehensive IT Asset Management(CITAM)' required for security operations by designing a process to automatically collect asset data-set. Such as the Hostname, IP, MAC address, Serial, OS, installed software information, last seen time, those are already distributed and stored in operating IT security systems. CITAM framwork could classify them into unique device units through analysis processes in term of aggregation, normalization, deduplication, validation, and integration.

• 치위생과학회지
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• 제18권6호
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• pp.340-348
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• 2018

본 연구는 치과위생사 의료인화에 대한 요구와 논의가 있는 현 시대적 상황에서 치과의료인력을 대상으로 치과위생사를 위한 선행과제와 의료인이 되었을 때의 긍정적 부정적 효과, 확장 가능한 전문업무에 대해 파악하고자 하였다. 치과위생사 259명, 치과의사 128명을 대상으로 치과위생사 의료인화에 대한 인식과 선행 과제, 긍정 및 부정적 효과와 확장 가능한 전문업무 등에 대해 조사 분석하여 다음과 같은 결론을 얻었다. 치과위생사 의료인화에 대해 치과위생사의 94.2%, 치과의사의 46.9%가 인지하였고, 치과위생사는 협회매체(52.5%), 치과의사는 치과신문(23.4%)을 통해 인지하는 경우가 많았다. 찬성도는 치과위생사의 95.0%, 치과의사의 64.1%였으며, 당위성은 치과위생사가 84.9%, 치과의사 51.6%였다. 당위성의 근거로 치과위생사는 업무 전문성과 교육과정 부합성이 높았고 업무 부합성이 낮았으나 치과의사는 의료체계 유사성이 높았고 교육과정 부합성이 가장 낮았다. 의료인화를 위한 선행 과제 중 직업적 영역에서 치과위생사와 치과의사 모두 직업의식과 윤리의식이 높았다. 제도적 영역에서도 두 직종 모두 치위생교육 질 관리가 가장 높았으며, 학제 일원화가 가장 낮았다. 사회적 영역에서 치과위생사는 중앙정부설득과 국민공감대 형성이 높았고, 치과의사는 유관단체 협력과 중앙정부 설득이 높았다. 치과위생사 의료인화 시 긍정적 효과는 치과위생사 인식 확장이 치과위생사와 치과의사 모두 가장 높았고, 부정적 효과는 치과위생사의 경우 임금상승 심화와 위임진료 증가가 높았고, 치과의사는 임금상승 심화와 구인난 심화가 높았다. 의료인화 시 확장 가능한 전문업무로는 독자적 치주관리프로그램 운영으로 치과위생사(79.9%)와 치과의사(69.6%) 모두에게 가장 높게 나타났다. 치과위생사는 치주관리를 위한 진단(44.4%)과 전신질환자 구강건강관리(44.0%), 비외과적 치주처치(41.3%), 근육 정맥주사(27.4%) 순이었고, 치과의사는 근육 정맥주사(44.1%), 비외과적 치주처치(34.3%), 전신질환자 구강건강관리(29.4%), 치주관리를 위한 진단(13.7%) 순이었다. 이상의 결과를 통해 치과위생사 의료인화가 가지는 의미에 대한 충분한 검토와 논의가 필요할 것으로 생각되고, 의료인화와 관련하여 치과위생사의 업무가 합리적으로 조정되고 합법화하는 데 본 연구가 활용되기를 기대한다.

• Advances in environmental research
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• 제5권4호
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• pp.237-249
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• 2016

The management of municipal solid waste (MSW) is essential for every community; and, it is currently a major challenge in Nigeria. This paper provides an overview of the current MSW management trends in Nigeria and proposes new sustainable MSW management systems. Across Nigerian cities, MSW management is characterized by inefficient collection and transportation to disposal sites. Collection services do not reach some unplanned areas and slums due to poor street network. Even some planned areas are not reached by collection services. The informal sector contributes to waste collection, resource recovery and recycling; however, their activities are not recognized by the governments. Markets exist for recovered materials but more efforts need to be geared towards intensive recovery of materials and expansion of these markets. Despite the high proportion of putrescible matter in MSW, the only form of treatment commonly used currently is open burning for volume reduction. The high organic fraction presents a great opportunity for composting and anaerobic digestion. Ultimate disposal is currently done in open dumpsites. This needs to be upgraded to engineered landfills that are properly sited and adequately operated by well trained personnel. There is an emerging waste stream of concern, electronic-waste (e-waste), that requires urgent sustainable management as e-waste are currently co-disposed with other waste streams or burnt in the open posing detrimental health impacts.

• 디지털융복합연구
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• 제10권10호
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• pp.1-11
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• 2012

범죄발생시 초동수사는 범죄피해자보호에 매우 중요하다. 경찰은 초동조치메뉴얼을 만들고 112신고시스템을 통하여 현장초동조치를 수행하고 있다. 그러나 최근 경찰초동수사의 실패사례가 발생하였다. 범인검거에는 성공했으나 범죄피해자보호에 실패한 경찰에 대한 사회적 비난이 거세었다. 앞으로 이런 일이 발생하지 않도록 초동수사의 개선방안이 요청된다. 이에 따라 범죄피해자보호를 위하여 경찰 초동수사에서 지역경찰 인사제도개선, 신고체계개선, 112신고와 119신고의 통합, 압수 수색규정의 개선, 피해자배려, 범죄대응훈련강화가 필요하다.