• 품질경영학회지
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• 제44권2호
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• pp.451-466
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• 2016

Purpose: This study was to identify customers' demands in railway services system and then to seek the way to satisfy the customer expectations. Methods: We suggest a Quality Function Deployment(QFD)-based approach comprised of three stages. In first stage, SERVPERF survey was carried out to assess current positions of customer expectations in the market. Then, factor analysis was incorporated into SERVPERF to classify customer expectations for the house of quality. In the second stage, the analytic network process was used to prioritize the importance of the customer attributes. Finally, QFD was performed utilizing customer attributes and their weights. Results: The QFD identified the most important customer expectations as: accident prevention, swift reaction to accident, on-time arrivals and departures of the train. It also shows that driving capability, equipment for safety, and training for disaster are the most critical technical requirements. Conclusion: The results are useful for identifying the customers' demands in railway services systems, and they can contribute to the service quality and customer satisfaction.

• 한국산업보건학회지
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• 제29권4호
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• pp.562-570
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• 2019

Objectives: Rapid Intervention Crews (RIC) are indispensable for rescuing firefighters who are lost or trapped. They are included in Disaster Scene Standard Operating Procedures. This study was conducted to examine the use of RIC at emergency scenes in South Korea. Methods: We conducted a nationwide survey of 4,913 firefighters in South Korea. The firefighters' experiences of use of RICs were assessed by asking, "How often are RICs available at fires?" Results: A full 40.8% of firefighters answered that they 'never' have RICs available at fires. Another 8.4% responded that they 'always' have RICs available, which is much lower than the rate among US firefighters (19.9%). RICs are available more often for firefighters in the capital area than for firefighters outside the capital area (13.4% vs. 5.1%, p<0.001). The larger the jurisdiction served, the more likely the firefighters were to have RICs available (p<0.001). Conclusions: These results imply that firefighters in South Korea are at risk. It is necessary to recruit personnel to improve the use of RICs and to explicitly include RICs in SOPs, training, and business plans.

• International Journal of Contents
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• 제5권1호
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• pp.27-32
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• 2009

The private security will overcome the limit of public police system and implement a small and efficient government concept. Especially in recent years, this security system has naturally been expanded in its functions from crime prevention to prevention of disasters. To manage the emergency by the private security industry, the private security services to involve some peculiarity and specialty. The policy agenda of private security industry for crisis management are suggested. First of all, to provide quality services for emergency management, the guards from private organizations should receive professional education and training to secure the specialty. Second, we need to improve the quality of security instructors with intensive education system for them. Security instructors should be able to effectively handle lots of different matters in the fields of security, but examination of the current curriculum of education for security instructor indicates that there is not much chance of it. Third, must be natural in light that the private organizations have some limitations in their operational capabilities and scopes. Private security duties are well established in cooperation with related institutions such as the police. Lastly, development of high quality crisis management commodities in the private security becomes even more significant. The government should be determined to make an effort to grow the private industry and foster a political environment for the same purpose.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2015년도 추계학술발표대회
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• pp.1618-1621
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• 2015

본 훈련 시스템은 재난유형별 국가재난대응시나리오 기반의 대응체계를 바탕으로 재난의 종류나 규모, 복잡성 등과 무관하게 유관기관의 재난관리 관계자를 위한 교육 평가를 통해 표준화된 교육 훈련 평가체계를 확립한다. 이를 위해 국내와 해외의 사례에서 조사된 내용의 특 장점 및 표출형태를 고려하여 재난대응역량 강화를 위한 재난 발생 시나리오 기반의 텍스트 위주의 훈련용 웹 시스템을 개발한다. 무엇보다도 현실적으로 지역의 위험과 위협을 대표하는 검증된 유형별 시나리오를 기반으로 예방(Mitigation) 대비(Preparedness) 대응(Response) 복구(Recovery) 단계의 복잡 다양한 재난상황에 대한 재난대응역량 및 상황대처 능력을 향상시키기 위한 훈련지원 교육으로 활용하기 위한 사용자 확장성이 유용한 훈련용 웹 시스템을 개발한다. 이를 통해 사전에 유관기관과의 협력강화를 위한 원활한 재난대응 협력체계 강화방안을 수립하고 재난현장 협력업무와 관련된 필요역량을 도출하는 등의 활동과, 이에 대한 실효성 있는 평가로 재난현장의 기관간 상호협력 능력을 제고할 수 있다. 또한 대응기관의 역량수준을 점검하고, 대응역량에 대해 부족한 부분을 보완하여 효율적 재난대비태세 구축하여, 재난피해를 최소화하는 효과를 기대할 수 있다.

• Safety and Health at Work
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• 제7권2호
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• pp.166-170
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• 2016

A brief emergency planning educational presentation was taught during work hours to a convenience sample of employees of various workplaces in Northern Missouri, USA. Participants were familiarized with details about how an emergency plan is prepared by management and implemented by management-employee crisis management teams - focusing on both employee and management roles. They then applied the presentation information to assess their own organization's emergency preparedness level. Participants possessed significantly (p < 0.05) higher perceptions of their organization's level of emergency preparedness than non-participants. It is recommended that an assessment of organizational preparedness level supplement emergency planning educational presentations in order to immediately apply the material covered and encourage employees to become more involved in their organization's emergency planning and response. Educational strategies that involve management-employee collaboration in activities tailored to each workplace's operations and risk level for emergencies should be implemented.

• 한국산업융합학회 논문집
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• 제25권6_2호
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• pp.979-986
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• 2022

Chemical accidents are increasing day by day as the industry develops. To prevent such chemical accidents, Korea enacted the Chemicals Control Act. Through these laws, systematic management of chemical substances began. There are various positions in the companies. hazardous chemical supervisors, equipment and technical human, operators and employees. Chemicals-related education for each position should be provided. As a result of the survey, hazardous chemical supervisors and equipment and technical human liked the overall content of the Chemicals Control Act and the education subject on safety management standards for facilities. Conversely, the operators liked the course on how to wear personal protective equipment. The employees preferred subjects such as classification of chemical substances and prevention of chemical accidents. Currently, various modular textbooks are widely available. Rather than general education, it is necessary to select and provide customized subjects that are preferred and interested according to the position. Then it will be more effective in understanding harzardous chemical substances and in preventing chemical accidents.

• 대한안전경영과학회지
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• 제26권1호
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• pp.63-74
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• 2024

The objectives of this study is to classify evacuation types, derive the characteristics of 4 types, develop and discover evacuation routes within the performance hall space, and present the statistical classification results of the evacuation classification model by classification type. To achieve this purpose, the characteristics of each evacuation type's four types are applied through a network reliability analysis method and utilized for institutional improvement and policy. This study applies for the building law, evacuation and relief safety standards when establishing a performance hall safety management plan, and reflects it in safety-related laws, safety standards, and policy systems. Statistical data by evacuation type were analyzed, and measurement characteristics were compared and analyzed by evacuation types. Evaluate the morphological similarity and reliability of evacuation types according to door width and passage length and propose the install position of evacuation guidance sign boards. The results of this study are expected to be used as basic data to provide operation strategies for safety facility evacuation information sign boards according to evacuation route classification types when taking a safety management plan. The operation strategy for the evacuation sign boards installation that integrates employee guidance and safety training is applied to the performance hall safety management plan. It will contribute to establishing an operational strategy for performance space safety when constructing performance facilities in the future.

• International journal of advanced smart convergence
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• 제13권1호
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• pp.212-220
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• 2024

When a typhoon or natural disaster occurs, a significant number of orchard fruits fall. This has a great impact on the income of farmers. In this paper, we introduce an AI-based method to enhance low-quality raw images. Specifically, we focus on apple images, which are being used as AI training data. In this paper, we utilize both a basic program and an artificial intelligence model to conduct a general image process that determines the number of apples in an apple tree image. Our objective is to evaluate high and low performance based on the close proximity of the result to the actual number. The artificial intelligence models utilized in this study include the Convolutional Neural Network (CNN), VGG16, and RandomForest models, as well as a model utilizing traditional image processing techniques. The study found that 49 red apple fruits out of a total of 87 were identified in the apple tree image, resulting in a 62% hit rate after the general image process. The VGG16 model identified 61, corresponding to 88%, while the RandomForest model identified 32, corresponding to 83%. The CNN model identified 54, resulting in a 95% confirmation rate. Therefore, we aim to select an artificial intelligence model with outstanding performance and use a real-time object separation method employing artificial function and image processing techniques to identify orchard fruits. This application can notably enhance the income and convenience of orchard farmers.

• 한국산학기술학회논문지
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• 제20권12호
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• pp.176-181
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• 2019

2017년도 연령별 산업재해 분석에 따르면 건설업 재해자 가운데 71.8%, 사망자의 74.9%가 50세 이상으로, 건설업 고령근로자의 산업재해 심각성을 보여 주고 있다. 본 연구에서 50세 이상 건설근로자 303명과 안전관리자 178명을 대상으로 건설현장 건설업 기초안전보건교육 현황을 파악하여 교육이수자에 대한 보수교육 개선방안을 제시하여, 건설현장 고령근로자 산업재해 예방에 기여하고자 건설근로자의 안전교육에 대한 안전의식과 기초안전보건교육 개선방안에 대하여 설문조사를 실시하였다. 연구결과 첫째 고령근로자와 안전관리자간의 안전교육에 대한 안전의식 차이 비교에서는 고령근로자(M=2.09), 안전관리자(M=2.39)로 안전교육에 대한 안전의식이 건설근로자보다 안전관리자들이 더 높게 나타났다. 둘째는 건설업 기초안전보건교육에 대한 보수교육 필요성에 대해서는 응답자의 65.2%가 긍정적으로 대답했다. 세째 건설업 기초안전보건교육 이수자에 대한 보수 주기에 대한 설문에서는 70%가 정기적으로 3년 이내 보수교육이 필요하다고 분석되었다. 교육 이수 후 시간이 지나면 안전의식이 떨어지고 새로운 공법과 건설안전 환경이 변화되는 상황에서 본 연구는 건설업 기초안전보건교육이 채용 시 교육을 대체하지 못하고 있어, 선행연구에서 제시한 기초안전보건 교육방법 개선을 통한 보수교육 도입으로 이 제도가 개선 될 수 있도록 제안하고자 한다.

• 한국수자원학회논문집
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• 제54권spc1호
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• pp.1107-1118
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• 2021

지구온난화로 인해 발생한 기후변화는 한반도의 홍수, 가뭄 등의 발생빈도를 증가시켰으며, 이로 인해 인적, 물적 피해가 증가한 것으로 나타났다. 수재해 대비 및 대응을 위해서는 국가 차원의 수자원 관리 계획 수립이 필요하며, 유역 단위 수자원 관리를 위해서는 장기간 관측된 유량 자료를 이용하여 도출된 유량지속곡선이 필요하다. 전통적으로 수자원 분야에서 유량지속곡선을 도출하기 위하여 물리적 기반의 강우-유출 모형이 많이 사용되고 있으며, 최근에는 데이터 기반의 딥러닝 기법을 이용한 유출량 예측 기법에 관한 연구가 진행된 바 있다. 물리적 기반의 모형은 수문학적으로 신뢰도 높은 결과를 도출할 수 있으나, 사용자의 높은 이해도가 요구되며, 모형 구동 시간이 오래 걸릴 수 있는 단점이 있다. 데이터 기반의 딥러닝 기법의 경우 입력 자료가 간단하며, 모형 구동 시간이 비교적 짧으나 입력 및 출력자료 간의 관계가 블랙박스로 처리되어 수리·수문학적 특성을 반영할 수 없는 단점이 있다. 본 연구에서는 물리적 기반 모형으로 국내외에서 적용성이 검증된 Soil Water Assessment Tool (SWAT)의 매개변수 보정(Calibration)을 통해 장기간의 결측치 없는 데이터를 산출하고, 이를 데이터 기반 딥러닝 기법인 Long Short-term Memory (LSTM)의 훈련(Training) 데이터로 활용하였다. 시계열 데이터 분석 결과 검·보정 전체 기간('07-'18) 동안 Nash-Sutcliffe Efficiency (NSE)와 적합도 비교를 위한 결정계수는 각각 0.04, 0.03 높게 도출되어 모형에서 도출된 SWAT의 결과가 LSTM보다 전반적으로 우수한 것으로 나타났다. 또한, 모형에서 도출된 연도별 시계열 자료를 내림차순하여 산정된 유량지속곡선과 관측유량 기반의 유량지속곡선과 비교한 결과 NSE는 SWAT과 LSTM 각각 0.95, 0.91로 나타났으며, 결정계수는 0.96, 0.92로 두 모형 모두 우수한 성능을 보였다. LSTM 모형의 경우 저유량 부분 모의의 정확도 개선이 필요하나, 방대한 입력 자료로 인해 모형 구축 및 구동 시간이 오래 걸리는 대유역과 입력 자료가 부족한 미계측 유역의 유량지속곡선 산정 등에 활용성이 높을 것으로 판단된다.