• 대한안전경영과학회지
• /
• 제12권3호
• /
• pp.61-72
• /
• 2010

Judgment of cerebral and cardiovascular diseases arising out of duty follows the legal judgment method for the purpose of investigation of medical causes based on the Industrial Accident Compensation Insurance Act, with the characteristics of the occurrence as personal factors etc. act as risk factors while work-related ones as triggers, in the case of disease due to occupational cases, as whether it arose out of duty must be judged including even the individual's personal risk factors, there are limitations securing fairness even with existing laws, regulations and guidelines. This study was carried out to suggest basic data for the preparation of standardized guidances for diseases arising out of duty by reviewing the standards for the acknowledgment of cerebral and cardiovascular diseases due to occupational cases, and it has a significance in that it suggests target diseases that may be judged as cerebral and cardiovascular diseases, legal criteria for the acknowledgment and standards for the judgment of cerebral and cardiovascular diseases arising out of duty.

• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2006년도 추계학술대회 논문집
• /
• pp.91-97
• /
• 2006

Currently, approx. 10,532 turnouts were installed on the KR line, of which 3,644 turnouts were installed in the main line where high speed operation is performed. This shows that it is necessary to improve the performance of turnout as one of vulnerable areas for the safe operation of a train. Even though the number of railway accidents is decreasing every year due to the renewal of railway facilities, there are still many factors that cause the occurrence of an accident. In particular, an incident in turnout area does not only have a high risk of a serious accident but also affect the operation of a train on the adjacent track in most cases, and consequently a big social loss is expected due to the delay in train operation as well as the loss of life and property. The objective of this study is to examine the accidents occurred in turnout area that is one of typical　vulnerable areas over the past ten years, on the basis of the results, and to take an appropriate measure by finding out the major cause of accidents in turnout area so that a systematic safety system can be established to prevent or reduce accidents in turnout area.

• 한국수소및신에너지학회논문집
• /
• 제30권6호
• /
• pp.578-584
• /
• 2019

The occurrence of white plume in the cooling tower is phenomenon that the steam in the air through the cooling tower fan is condensed again by the cold ambient air to become saturated moist air. Accordingly, this can cause many problems like spoiling landscape around the cooling tower, odor of ambient air, falling accident by frozenness in the winter, and traffic accident, etc. This study was to install the heat exchanger in the inside of the cooling tower in order to prevent the white plume phenomenon in the cooling tower without affecting the performance of cooling tower. In addition, this study was to discharge the part of cooling water into the atmosphere through the recirculation of heat exchanger after creating dry air by heating the saturated moist air to the dew point temperature. At that time, this study was to conduct the experimental study in order to secure the optimal design data to prevent the white plume in the cooling tower because it checked the dry·moist temperature and relative humidity in the inside·outside of cooling tower on the moist air, and evaluated the performance of the heat exchanger.

• International Journal of Safety
• /
• 제9권2호
• /
• pp.35-40
• /
• 2010

Many casualties are being occurred due to many misses the railway platform, and the accident occurrence is being increased. Recently in Korea, efforts to prevent casualties fundamentally are being made by installing and operating the PSD(Passenger Screen Door) as to prevent these casualties of passengers. However, in case of the PSD system, although it can solve the problem of public casualties at platform fundamentally, it is impossible to install it at whole railway platforms. This paper proposes the safety equipment using LaserRadar sensor for the prevention against casualties of passengers at platform. The safety equipment using novel sensor is the safety equipment making an approaching train stopped if the falling object is a person by detecting the obstacle at platform, and it has the merit possible to apply it to platform since it may detect accurately under ambient environmental elements such as the snow, rain and yellow dust, etc. also. We manufactured a prototype of the safety equipment to reduce public casualties at platform by using LaserRadar sensor and carried out its performance test, and the result is presented in this paper.

• 한국안전학회지
• /
• 제20권3호
• /
• pp.164-173
• /
• 2005

In this paper, the systematic problems of safety management in domestic construction industry are presented by the investigation and analysis of construction fatal injuries. In particular, it is discussed that the current construction safety management system by contractors leading is ineffective to prevent the serious accidents caused by inappropriate planning and design and to circulate the safety management cycle without interruption. A couple of ways for improving domestic construction safety management system are suggested in broad perspective. This is done by the analysis of construction safety management system of four advanced industrial countries such as the United States, the United Kingdom, Germany, and Japan and the study of a best practice. Total safety management system by owners leading is recommended to prevent construction accident effectively because this system makes all the parties join to the management system and distribute the responsibilities clearly to each party. This will drop the accident occurrence rate by dragging all the parties' cooperations and activating the total safety management system in an early stage.

• 임상간호연구
• /
• 제27권1호
• /
• pp.109-119
• /
• 2021

Purpose: The purpose of this study was to identify and analyze the characteristics of nurses' medication errors during three years. Methods: Retrospective survey study design was used to analyze medication errors by nurses among patient safety accidents. Data were collected for three years from January, 2017 to December, 2019. Data were analyzed using frequency, percentage, 𝑥²-test, and logistic regression with SPSS 26.0 program. Results: Of a total 677 medication errors, 40.6% were caused by nurses. Among the medication errors, near miss (n=154, 56.0%), intravenous bolus injection (n=170, 61.8%), wrong dose (n=102, 37.1%) and carelessness for repetitive work (n=98, 35.6%) were the most common. Medication errors differed by department, and nurses' career, and patient safety accident type. The results of the logistic regression analysis showed that the risk factors of adverse events were medication of fluids (OR=3.93, 95% CI: 1.26~12.27), insulin subcutaneous injection (OR=39.06, 95% CI: 4.58~333.18), and occurrence of extravasation/infiltration (OR=7.26, 95% CI: 1.85~28.53). Conclusion: The simplest and most effective way to prevent medication errors is to keep 5 right, and a differentiated education program according to department and nurse career is needed rather than general education programs. Hospital-level integrated interventions such as a medication barcode system or a team nursing method are also necessary.

• 한국정보통신학회:학술대회논문집
• /
• 한국정보통신학회 2021년도 춘계학술대회
• /
• pp.389-391
• /
• 2021

국민의 안전을 위해 교통사고를 방지하고자 교통 규제는 계속 확대되고 있지만, 교통사고는 여전히 줄어들지 않고 있다. 본 연구에서는 기상청의 날씨 예측 데이터, 도로교통공단의 요일, 시간대, 장소별 교통사고 발생 데이터, 특정 위치 정보 등 다양한 요인들의 연관관계를 인공지능을 활용하여 분석함으로써 특정 시간, 장소에 대한 교통사고 발생 확률을 예측하고자 한다. 본 연구는 이전의 수많은 교통사고 발생에 대한 객관적인 데이터와 기존의 다른 연구들에서 활용되지 않은 다양한 추가 요소들을 접목시켜 더욱 향상된 교통사고 발생 확률 예측 모델을 도출한다. 본 연구 결과는 국민의 안전한 삶을 위한 다양한 교통 관련 서비스에 유용하게 활용될 수 있을 것이다.

• 한국항해항만학회:학술대회논문집
• /
• 한국항해항만학회 2019년도 추계학술대회
• /
• pp.266-266
• /
• 2019

해마다 증가하고 있는 해양사고는 기관고장, 충돌, 좌초, 화재 등 다양하게 발생하고 있다. 이러한 해양사고는 대형 인명사고의 위험이 있어 사전에 사고를 예방 하는 게 무엇보다 중요하다. 이를 위해서는 해양사고 발생을 사전에 예측하고 이에 대응할 수 있는 예측 체계가 요구된다. 본 연구에서는 과거에 발생한 데이터를 근거로 미래를 예측할 수 있는 마코프 체인 프로세스(Markov Chain Process)를 적용하여 해양사고 발생을 사전에 예측하기 위한 모델링을 제안한다. 제시된 모델링을 적용하여 미래 발생 가능한 해양사고 발생 확률을 산출하고 실제 발생한 빈도와 비교하였다. 또한 많이 사용되는 다른 예측 분석 방법과 비교하여 예측의 정확성을 측정하였다. 이를 통해 해양사고 발생에 관한 예측 체계를 마련하는데 하나의 확률 모형을 제안하였으며, 나아가 다양한 해양사고의 문제를 예측하는데 기여할 것으로 기대된다.

• 한국안전학회지
• /
• 제39권1호
• /
• pp.33-40
• /
• 2024

This study analyzes the impact of regular preventive maintenance (PM) on reducing the failure rate and occurrence of falling accidents of industrial overhead doors. A reliable safety device model with an additional safety device, which is installed to replace a defective one, is proposed. The research methodology involves collecting breakdown and falling accident records, comparing and analyzing data before and after regular PM implementation, and experimenting with two types of retrofittable safety devices. Key findings are as follows. 1. Regular PM implementation significantly reduces the failure rate of old overhead doors. 2. A parallel structured model with two alternative safety devices can minimize falling accident risks. The study's contributions include the following. 1. The positive impact of PM on extending overhead door lifespan is quantified. 2. A general safety device model that can be retrofitted and used as replacement with a fail-safe function is proposed.

• 한국환경농학회지
• /
• 제38권1호
• /
• pp.54-60
• /
• 2019

본 연구는 실제 불화수소 누출 사고에 대한 OCA(Off-site consequence analysis) 분석을 통해 최악 및 대안의 사고시나리오를 선정하여 사고영향범위 예측치를 평가하고, 사고 반경 내 농작물의 잔류오염도를 측정함으로써 화학사고로부터 발생될 수 있는 환경 피해영향범위를 도출하고자 하였다. KORA 소프트웨어를 이용하여 사고영향범위를 분석한 결과, 최악의 사고시나리오는 사고 발생지점으로부터 10 km 이상, 대안의 사고시나리오는 1,968 m의 영향범위가 산정되었고, ALOHA 소프트웨어 구동 결과는 약 1.9 km를 나타내었다. 아울러, 실제 사고 지역 내 농작물의 불소화물 잔류 여부를 측정한 결과, 피해지역 내 불소화물 농도는 4.96~276.82 mg/kg 범위로 사고 발생지점 인근이(E-1) 가장 높았고(276.82 mg/kg), 동쪽방향으로 멀어질수록 잔류농도가 감소하는 경향이었다. 한편, 북동 방향 2지점과 남동 방향 4지점은 사고 발생지점 인근보다는 낮은 경향이었다(4.96~28.98 mg/kg). 이러한 결과를 비추어 2 km 내외 지점의 불소화물 농도가 5 mg/kg 이하의 미미한 수준과 대안의 사고시나리오 예측 영향범위인 약 1.9 km를 고려했을 때 피해영향범위는 약 2 km 내외 수준인 것으로 추정된다. 이와 같이 OCA 평가는 누출조건, 기상조건, 시간경과에 따른 물리화학적 변수 등을 사고현장과 동일하게 입력할 수 없기 때문에 실제 피해영향범위와 다른 경향은 있지만 농작물 중 불소화물 잔류오염 여부를 동시에 평가함에 따라 화학사고로부터 화학물질의 확산범위를 산정하는데 있어 도움이 될 수 있을 것으로 판단된다.