• Title/Summary/Keyword: Normal Accidents

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Survey on the Occupational Disabled Status using Functional Assessment Tools (간병요양중인 산재환자의 실태 - 산재환자 기능판정도구를 중심으로 -)

  • Choi, Jeong-Myung;Oh, Jin-Joo;Kim, Chun-Mi
    • Korean Journal of Occupational Health Nursing
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    • v.19 no.2
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    • pp.180-189
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    • 2010
  • Purpose: The purpose of this study was to investigate the actual condition of the disabled due to Occupational accidents based on the functional evaluation tool. Method: The data were collected from 2 Workers Accident Medical Corporation, 311 subjects between February and August, 2007. The tool comprised of six components including physical function, cognitive function, communication, emotional and disturbing behavior, nursing skills and rehabilitation needs. Results: Among the disabled, the average point of physical function of 5 was found in 61.92% and to express and understand were evaluated as normal in 36.69% and 33.44%, respectively. Also, hearing and vision were evaluated as normal in 53.50% and 37.98%, respectively. 19.01% of the disabled had emotional problems and 13.78% had disturbing behavior. Most disabled were in need of nursing skills with 97.73% ROM and activities. The 78.18% and 76.90% of disabled were in need of rehabilitation because of right and left leg in full movement disorders, respectively. Conclusion: The evaluation score for the disabled caused by Occupational accidents was diverse showing 10 to 19 points and 140 to 150 points. The result means the care cost should be determined depending on the care needs of the disabled because there is such a diverse range of care needs for them.

A Study on the safety measures for hydrogen cooling system of 500MW class thermal power plant (500MW급 화력발전소 수소냉각시스템의 안전대책)

  • Kim, Soon-Gi;Yuk, Hyun-Dai;Ka, Chool-Hyun
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2005.05a
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    • pp.385-390
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    • 2005
  • This paper provided a counter measures against the troubles and accidents that are likely to take place in the power plant using hydrogen gas as a coolant for the cooling system of the generator. Because of the extremely wide flammability limits of hydrogen in comparison to the other flammable gases, the safety measures against the hydrogen accidents is very important to ensure the normal operation of electric-power facility. This study's purpose was a presentation of standard model of safety management of hydrogen equipments in the coal firing power plant such as following items: 1) providing the technical prevention manual of the hydrogen explosions and hydrogen fires occurring in the cooling system of power generator; 2) the selection of explosion-proof equipments in terms of the risk level of operating environment; 3) the establishment of regulations and counter measures, such as the incorporation of gas leakage alarm device, for preventing the accidents from arising; 4) the establishment of safety management system to ensure the normal operation of the power plant.

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A Study on the Effects of Factors of Traffic Accidents Caused by Frozen Urban Road Surfaces in the Winter (겨울철 도시부 노면결빙사고 발생에 미치는 요소에 관한 연구)

  • Kim, Sangyoup;Jang, Youngsoo;Kim, Sungkyu;Min, Dongchan;Na, Hohyuk;Choi, Jaisung
    • International Journal of Highway Engineering
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    • v.17 no.2
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    • pp.79-87
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    • 2015
  • PURPOSES: According to accident statistics for road built in 2004, the ratio of accidents on frozen roads to normal roads is 0.9%, whereas the fatality ratio is 2.7%. The risk of accidents on frozen roads is very high. Measures taken every year to prevent traffic accidents of frozen roads in the winter season are still insufficient. Additionally, measures have been established mainly on rural roads. Therefore, for urban roads, analyses and measures to prevent accidents are lacking. In this study, data on accidents on frozen roads was used to search for the causes behind these accidents and measures to reduce accidents have been recommended. METHODS: In this study, collected data from the TAMS (Traffic Accident Management System), which were collected by the Seoul National Police Agency was used. The data were divided into vehicle, people, and condition of road. The analytical model used here was the Logistic Regression Model, which is frequently used for traffic safety and accident analysis. This study uses the odds ratio analysis to search for variables related to frozen road traffic accidents in each category. A total of 18 out of 47 variables were found to be the causes of accidents. RESULTS: From the results of the comparative analysis of 18 variables, the category of the condition of the road was found to be the most critical. Contrary to expectations, more accidents occurred in clear weather than in other conditions. Accidents on bridges occurred frequently, and its odds ratio was the highest compared with other road types. When BPT is operated, the probability of accidents on frozen roads is lower than in general conditions, and accidents occurred frequently on roads with less than four lanes. CONCLUSIONS : Based on the results of this study, suggestions for reducing the risk of future domestic road accidents in freezing conditions are indicated as follows. First, it is necessary to perform a technical review of the urban road traffic accidents caused by frozen roads. Second, it is necessary to establish criteria for the study of the road environment based on the major causes of road accidents on frozen roads. Third, improvements in urban road environmental factors should be made.

The Clinical Study of Cervical Sprain by Car Accidents in Children (경항통 및 경추 염좌를 동반한 소아 교통사고 입원 환자 24명에 대한 임상적 고찰)

  • Koo, Eun Jin;Lee, Jin Hwa;Han, Jae Kyung;Kim, Yun Hee
    • The Journal of Pediatrics of Korean Medicine
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    • v.30 no.4
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    • pp.19-28
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    • 2016
  • Objectives The purpose of this study is to report 24 patients who have neck pain or have been diagnosed with cervical sprain by car accidents and have been treated in the oriental medical hospital. Methods 24 children who have visited oriental medical hospital from January 2016 to September 2016 were analyzed by reviewing the patients' charts. Results In the study group, the most common chief complaint was having musculoskeletal partial pain. Among them, 18 patients had neck pain; 20 patients had C-spine sprain was diagnosed at and among 18 who had neck pain, 14 was diagnosed C-spine sprain and 4 was normal. All patients had been treated by acupuncture, herb medicine and chuna treatment (muscular manipulation) and the oriental medical treatment resulted in improvement of children patients' symptoms by car accidents. Conclusions The study result showed that the car accident could have caused cervical sprain and neck pain to children and the oriental medical treatment was effective in the children patients.

Research Trends of Korean Medicine Treatment for Traffic Accidents during Pregnancy (임신 중 교통사고의 한의학적 치료에 대한 연구동향 분석)

  • Kim, Nam-Hoon;Hwang, Deok-Sang;Lee, Jin-Moo;Lee, Chang-Hoon;Jang, Jun-Bock
    • The Journal of Korean Obstetrics and Gynecology
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    • v.32 no.3
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    • pp.73-85
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    • 2019
  • Objectives: The purpose of this study was to analyze efficacy and safety of Korean Medicine treatment for traffic accidents during pregnancy. Methods: We investigated the studies on Korean Medicine treatment for traffic accidents during pregnancy via searching through PUBMED, the Cochrane Library, CNKI, and domestic search engines and a total of 6 studies were selected. Results: The major complaints of traffic accidents during pregnancy were low back pain, neck pain and gastrointestinal symptoms. And there were vaginal bleeding and pruritus vulvae in the complaints. All of the studies were given acupuncture treatment for symptom relief, and chuna, herbal acupuncture and cupping were administered. Herbal medicine was also performed, and the most prescribed herbal medicine was Antaeeum-gamibang. All cases reported as traffic accidents during pregnancy showed a reduction in symptoms, normal pregnancy maintenance and delivery, and no miscarriage were reported. Conclusions: Korean Medicine treatment is an effective and safe treatment option for traffic accidents during pregnancy. Further systematic studies are needed to establish the basis for Korean Medicine treatment for traffic accidents during pregnancy.

Nuclear reactor vessel water level prediction during severe accidents using deep neural networks

  • Koo, Young Do;An, Ye Ji;Kim, Chang-Hwoi;Na, Man Gyun
    • Nuclear Engineering and Technology
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    • v.51 no.3
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    • pp.723-730
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    • 2019
  • Acquiring instrumentation signals generated from nuclear power plants (NPPs) is essential to maintain nuclear reactor integrity or to mitigate an abnormal state under normal operating conditions or severe accident circumstances. However, various safety-critical instrumentation signals from NPPs cannot be accurately measured on account of instrument degradation or failure under severe accident circumstances. Reactor vessel (RV) water level, which is an accident monitoring variable directly related to reactor cooling and prevention of core exposure, was predicted by applying a few signals to deep neural networks (DNNs) during severe accidents in NPPs. Signal data were obtained by simulating the postulated loss-of-coolant accidents at hot- and cold-legs, and steam generator tube rupture using modular accident analysis program code as actual NPP accidents rarely happen. To optimize the DNN model for RV water level prediction, a genetic algorithm was used to select the numbers of hidden layers and nodes. The proposed DNN model had a small root mean square error for RV water level prediction, and performed better than the cascaded fuzzy neural network model of the previous study. Consequently, the DNN model is considered to perform well enough to provide supporting information on the RV water level to operators.

The Possibility and Limit of Risk Management through Technological Fix: A Case Study into the Platform Screen Door (PSD) (기술적 해결을 통한 위험관리의 가능성과 한계: 지하철 스크린도어를 중심으로)

  • Kang, Yun-Jae
    • Journal of Science and Technology Studies
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    • v.10 no.2
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    • pp.77-105
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    • 2010
  • This essay aims to look into the possibility and limit of a technological fix with the PSD (platform screen door), which was proposed as the solution of subway risk problems. Subway risk problems may be classified into five categories-on-rail accidents, in-station accidents, platform accidents, spatial risks in underground, and risks due to a crime or terror-, and the platform accidents, which happens at the interface between the rail and the station, is the most serious and prominent. The PSD is considered as an effective technical means to prevent platform accidents. However, there remains a possibility of aggravating unexpected and invisible risks. When a fire breaks out in platforms, especially at exchange stations during the rush hour, the PSD can become a "wall of outcrying", since it may act as the "safety shutter" which killed many people in the 2003 Daegu subway disaster. This is why we need to look into the limit of a technological fix with the PSD.

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Analysis of the Vulnerable Roadway Designs for Elderly Drivers and Its Improvement Schemes (고령운전자 사고취약 도로형태 분석 및 개선방안 연구)

  • Kim, Sang-Ock;Chang, Il-Joon;Lee, Choul-Ki
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.8 no.6
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    • pp.162-172
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    • 2009
  • Improvement of roadway environments to accommodate elderly drivers' declining driving capabilities are required. Currently, even the types of roadway designs vulnerable to elderly drivers have not been revealed in Korea. Thus, this study aims to analyze the types and vulnerabilities of the roadway designs that elderly drivers experience more accidents based on crash data of the Korean National Police Agency. This study has also reviewed foreign guidelines enhancing their safety on different roadway designs. Compared with normal drivers, elderly drivers tend to be more frequently involved in traffic accidents on intersections and vehicle-to-vehicle accidents on curved roadway segments. Assuming freeway interchanges are also risky sections, this study has also examined several methods to reduce elderly driver-related accidents on freeway ramp areas.

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Observational Study on the Effectiveness of Korean Medical Treatment on Stress Caused by Traffic Accidents (한의 치료가 교통사고 환자의 스트레스 및 심박변이도 변화에 미치는 영향)

  • Kim, Jin Youp;Jo, Hee Jin;Nam, Sang Soo;Kim, Young Suk
    • Journal of Acupuncture Research
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    • v.31 no.2
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    • pp.31-38
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    • 2014
  • Objectives : The purpose of this study is to find the effectiveness of Korean medical treatment on stress caused by traffic accidents. HRV analysis and IES-R K research were used to evaluate it. Methods : We selected patients who entered the KangNam KyungHee Hospital between 28 Sep 2013 and 14 Apr 2014 and met inclusion/exclusion criteria. Before taking treatment, we took HRV and IES-R-K first to know the exact mental conditions of patients. For a week, we had taken acupuncture treatment, herb medicine treatment and physical therapy. After that, we compared patients' changes between before-treatment and after-treatment with the same examination. Results : In a period of one week, Korean medical treatment makes LF(Norm) stay within the normal range and HF(Norm) increase. But, we could not find statistical significance between two. The normal range of LF/HF ratio increased, and there was statistical significance. After treatment, the IES-R-K score tended to decrease. Statistically, korean medical treatment is useful to alleviate subjective stress by traffic accidents. Conclusions : Korean medical treatment makes the sympathetic system relax and parasympathetic system rise so it balances an autonomic nervous system. But, there is not statistical significance. Also, it gives positive effect on car accident patients' treatment in terms of easing their subjective stress. Prospective and Larger study will be necessary.

A Study on the safety measures for the protection of hydrogen cooling system of generator (수소를 냉각매체로 하는 발전기 안전대책에 관한 연구)

  • Lee Choon-Ha;Yuk Hyun-Dai
    • Journal of the Korean Institute of Gas
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    • v.8 no.4 s.25
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    • pp.55-61
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    • 2004
  • This paper provided a counter measures against the troubles and accidents that are likely to take place in the power plant using hydrogen gas as a coolant for the cooling system of the generator. Because of the extremely wide flammability limits of hydrogen in comparison to the other flammable gases, the safety measures against the hydrogen accidents is very important to ensure the normal operation of electric-power facility. This study's purpose was a presentation of standard model of safety management of hydrogen equipments in the coal firing power plant such as following items: 1) providing the technical prevention manual of the hydrogen explosions and hydrogen fires occurring in the cooling system of power generator; 2) the selection of explosion-proof equipments in terms of the risk level of operating environment; 3) the establishment of regulations and counter measures, such as the incorporation of gas leakage alarm device, for preventing the accidents from arising, 4) the establishment of safety management system to ensure the normal operation of the power plant.

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