• 한국안전학회지
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• 제27권1호
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• pp.32-43
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• 2012

"low and old age trend" is a big social national problem in korea but also in foreign countries. The Government pursues a policy for aged people to take part in construction site as labours. Low childbirth and avoidance of 3D work kinds lead to exposure of aged workers to industry work places. According to korea department of labour, it is expected that 18% of total economic activity people in 2008 to 27.2% in 2018 be increased with age of more than 55 old years. Therefore, It is needed that more countermeasures for old workers should be taken for safer work conditions. This old workers with more than 55 old years contain major portion of accident occurrence in construction industry. It is found that accident rate in construction industry can be decreased if appropriate technical safety training is provided to them who wish to work at construction sites. Statistic analysis such as frequency, cross, logistic regression using program package SPSS 13.0 has been made after collecting questionnaire survey of more than 330 workers at construction sites.

• 한국자동차공학회논문집
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• 제19권3호
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• pp.113-121
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• 2011

Rollover accident is one of the serious traffic accident and rollover accident takes high portion of all accident. The most common type of rollover is a tripped rollover which occupy 95% of all type of single-vehicle rollover. Tripped rollover occurs when a vehicle leaves normal road way and tripped by loose gravel, soil of fixed object such as guard rail, curbs and ditches. And the rest of the type of rollover is un-tripped rollover. An un-tripped rollovers that occurs during high-speed collision avoidance maneuvers. In this paper, presents the explanation of the un-tripped rollover test method and procedure, additionally this paper deals with various occurrence in the un-tripped test such as occurring excessive tire camber in the un-tripped test, tire side-wall contact with road surface and roll oscillation. And this paper analyzes the analysis of the roll rate amplitude in specific frequency through the FFT (Fast Fourier Transform) and the roll angle at the steering reverse timing which is the Fishhook test roll rate feedback time. Finally, this paper analyzes the relations between the estimated steady state roll gain and rollover stability.

• 한국산업융합학회 논문집
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• 제22권2호
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• pp.95-103
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• 2019

Safety and welfare of forestry is very poor because of poor working environment, decreasing workforce and budget, and aging. These have brought many accidents and casualties. The accident rate in the field of forestry were about 2.83 times higher than average of an entire industry and mortality rate were 1.84 times higher than it. The most reason among the mortality accident was caught in, under or between objects and struck by objects. In analysis of 60 serious accident cases, the number of occurrence s of caught in, under or between objects and struck by objects were the highest. We suggest education, engineering, environment, and enforcement methods which is first aid education and emergency response system, equipment of combined IoT technologies and sensors, and certification and career program on the basis of the results.

• 한국산학기술학회논문지
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• 제7권6호
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• pp.1142-1148
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• 2006

실제적으로, 현재의 교통사고 검지시스템은 주로 교차로에서의 영상정보와 디지털 영상처리기술에만 거의 의존하고 있기 때문에 교차로에서의 혼잡한 상황하에서는 정확한 판별의 제한이 잔존하고 있다. 이러한 문제점을 보완하기 위하여, 본 논문은 교차로에서의 교통사고 자동검지율의 향상을 위해 검토되어야 할 사고음의 음향특성을 분석함으로써 현재 기술수준과 실현가능성을 가늠해 보는 것을 목적으로 한다. 교차로 주변에 차량의 소통이 거의 없을 때는 자동차사고 스키드음은 1[KHz]$\sim$3[KHz] 대역에서 특정패턴을 보였다. 또한, 차량 충돌음의 주파수 대역은 500[Hz]이하에서 사고가 발생하지 않은 시점보다 높은 30[dB] 이상의 음압차이를 보였다.

• 한국전문물리치료학회지
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• 제12권2호
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• pp.98-104
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• 2005

This study was done to research the general information, causes of stroke, risk factors, complications during admission of geriatric CVA inpatients. We retrospectively studied 208 above 65 years old geriatric CVA inpatients treated in Ajou university hospital from 1994 to 2003 by medical record. These were divided into two groups by following years. We were gathered information about sex, onset age, cause of stroke, number of stroke, complications, housing, family, insurance, smoking, alcohol. Most of incidence of the stroke was noted in the group of young old age (65~74 years old) and old age (75~84 years old). The occurrence rate of male stroke (38.5%) was less than of female stroke (61.5%) and the ratio of male to female was 1:1.6. The occurrence rate of ischemic stroke (72.6%) was higher than of hemorrhagic stroke. The occurrence rate of ischemic stroke increased more and more at the late stage. The most common risk factors for stroke was hypertension and complications during hospitalization were neurogenic bowl and bladder. These results of epidemiologic study may help above 65 years old geriatric CVA early treatment and prevention, rehabilitation and use basic data for multiple prospective study using stroke registry.

• Journal of Preventive Medicine and Public Health
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• 제27권3호
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• pp.447-463
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• 1994

Despite the public health importance of injury and poisoning in terms of its high mortality and incidence, epidemiologic information to be utilized are scarce in Korea. This study was carried out in 1990 on a representative sample population (about 55,000 persons) along with the 6th National Tuberculosis Prevalence Survey in order to estimate the magnitude of injury and poisoning occurrence and to identify its epidemiologic characteristics which can be aided for establishing preventive strategy. Pre-tested and structured Questionnaire was used by trained interviewer to collect data including general information of the person, various information on the injury and poisoning during the past one year such as time and place of its occurrence, its nature and external causes, type of medical institute attended, duration of treatment and outcome of the accident occured. In analysis of the data collected incidence rates per 1000 persons by sex, age group and its nature as well as external causes, and relative frequencies were calculated. The result obtained are as followings; 1. The incidence rate per 1000 was 30 for both sexes, 39 for male and 22 for female, male being 1.8 times more frequent than female. Age adjusted incidences were not much different from the crude rates. Age group specific rate curve showed bimodal shape in both sexes, small peaks in preschool children and higher peaks in older ages. The incidence rate per 1000 people by area was highest in Jeon-bug province (57/1000) and the lowest in Daegu city(11/1000). 2. The place where the injuries occured were road in 46%, within the boundary of house in 25%, and working place in 12% The injuries and poisoning had occured more frequently during the months from March to August of the year than other months. 3. The relatively frequent injuries by its nature were contusion with intact skin surface (19%), fracture of upper limb (13%), open wound of head, neck and trunk (12%) and fracture of lower limb (11%) among males; contusion with intact skin surface (28%), sprains and strains of joints and adjacent muscle (14%), fracture of upper limb (10%) and fracture of lower limb (9%) among females. Higher incidence rate among males than females were fracture of skull (4.5 times), open wound and fractures of limbs ($2{\sim}3$ times). Age specific rate of injuries and poisoning by its nature showed increasing pattern by age in fractures of upper and lower limbs and sprains & strains of joints whereas the age group of 30's showed highest incidence in open wounds of upper limb. Fractures of radius and ulna in upper limb, fractures of tibia & fibula and ankle in lower limb were most frequent among fractures of upper and lower limbs. The frequent injuries among sprains and strains of joints and adjacent muscles were that of ankle, foot and back, and among open wound were that of head and fingers. 4. Relative frequency of injuries and poisoning by external causes showed following order : other accidents (25%), accidental falls (23%), motor vehicle accident (22%) and other road vehicle accident (14%) among males and accidental falls (37%), motor vehicle accident (24%) and other accident (18%) among females. The external causes revealing higher incidences among males than females, were other road vehicle accident (4.8 times), vehicle accident not elsewhere classifiable (4.4 times), accidental poisoning (4.4 times), accidents due to natural and environmental factors (2.8 times), and sucide & self-inflicted injuries (2.8 times). Age specific incidence by external causes for frequent injuries showed that incidence of other accident steadily increased from 10's till age 50's; motor vehicle traffic accident increased from age 20's and dropped after age 60's; on the other hand accidental fall increased strikingly by age. The most frequent external causes among motor vehicle traffic accidents was motor vehicle traffic accident involving collision with pedstrain (69%), pedal cycle accident (30%) and other road vehicle accident (71%) among other road vehicle accidents; falls on same level from slipping, tripping or standing (44%) and other falls from one level to another among accidental falls; accidents caused by machinary (32%) for male and striking against or struck accidentally by objects or person for female among other accidents. 5. Seventy nine percent of the injuries and poisonings were treated in general hospital or hospital/clinic. The duration of treatment ranged from a few days to 123 weeks; the majority(52%) took under 2 weeks, 36% for $3{\sim}8$ weeks and 4% over 21 weeks. 6. The accident resulted in full recovery of normal healthy state in 62%, residual functional defects in 21% and on process of treatment in 16%.

• 대한안전경영과학회지
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• 제11권4호
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• pp.119-125
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• 2009

We predict the earthquake rate in Korea following Bayesian approach. We make a model that can utilize the data to predict other levels of earthquake. An event tree model which is a frequently used graphical tool in describing accident initiation and escalation to more severe accident is transformed into an influence diagram model. Prior distributions for earthquake occurrence rate and probabilities to escalating to more severe earthquakes are assumed and likelihood of number of earthquake in a given period of time is assessed. And then posterior distributions are obtained based on observed data. We find that the minor level of earthquake is increasing while major level of earthquake is less likely.

• 대한안전경영과학회지
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• 제12권4호
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• pp.13-21
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• 2010

The occupational safety and health expenses in construction since 1988 has contributed significantly to the reduction of injury occurrence rate. But accounted basis and criteria used of the occupational safety and health expenses have been pointed out so many issues. The purpose of this study, perform analysis of the effectiveness of the occupational safety and health expenses through the reviewing of several issues about the current system and analysis of existing statistical data. Based on the result of the research, it is concluded that the contribution survey of the occupational safety and health expenses on the safety accident prevention program qualitatively evaluated as an average of 4.39(standard deviatin 0.652) on the five point scale based was very positive.

• 한국항행학회논문지
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• 제18권4호
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• pp.334-340
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• 2014

최근 항공 안전의 발전에도 불구하고, 항공기 사고의 뚜렷한 감소 추세 없이 유지되고 있다. 따라서 국제적인 항공안전관리의 방향은 기존의 항공안전 방식을 탈피하여 자료에 근거하여 분석된 요소들을 통하여 사고예방을 위한 위험요소를 제거하는 것에 관심을 가지고 있다. 본 논문은 전 세계적으로 항공안전 데이터의 보고와 교환을 위한 표준이 되고 있는 ECCAIRS를 소개한다. 또한 최근 10년간의 국내 항공사고 데이터를 활용하여 항공기 분류별(고정익과 회전익)로 항공기 사고와 준사고의 분포, 연도별 및 월별 사고 분포, 비행 단계 분포, 그리고 분류체계 분포 등에 대한 경향을 분석한다. 본 논문의 항공기 사고와 준사고의 추세 분석은 향후 추구해야 할 정량적인 안전관리의 유용한 방향이 될 것이다.

• 한국보건간호학회지
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• 제18권2호
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• pp.258-275
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• 2004

The purpose of this study was to measure safety-awareness among elementary students, identify their safety-practices and actual status of accidents. The study was also done to acquire basic information on safety education to help students be more aware of safety, and more active in accident-prevention activities. A random sample was taken of 763 5th and 6th grade students in 4 different elementary schools in Seoul. Of the 735 questionnaires collected, 684 were complete and were used in the analysis. SPSS was used to analyze the questionnaires. The results are summarized as follows. First, the overall safety-awareness score was relatively high at 139.06 of a maximum of 164. and respondents were most conscious of the section on Home Safety. Second, the safety-practices of the respondents was at the middle level with a mean score of 56.01 of a maximum of 80. The factors affecting the safety-practice of the respondents were education of their parents, recognized learning proficiency, awareness of need for safety education, and level of safety-education conducted by parents. Third, $53.4\%$ of the respondents had experienced one or more accidents during the past year. Most of the accidents occurred during play and recreation and home accidents were the most frequently reported accidents. The risk factors related to the occurrence of accidents were gender, relationship with friends, recognized learning proficiency, and awareness of traffic safety. Forth, higher safety-awareness was found to be directly related to higher safety-practices. Respondents with lower safety-awareness reported higher rate of accidents. In view of the results so far achieved, habituation and formation of safety-oriented actions among students are highly required to prevent accidents. In order to do that, development of safety-awareness and in-life enforcement of safety-practice need to come first.