지속적인 업무개선과 홍보강화로 신환 수 증가

조승안,고은정,신준한 한국의료QA학회 2007 가을학술대회 Vol.2007 No.3

건강증진센터 리모델링 후 수진인원을 확대하여, 병원수입에 기여하자

조승안,정준화,이연정,임명희,양정화,김현진,김미영,임혜미 한국의료QA학회 2009 가을학술대회 Vol.2009 No.3

심박수를 이용한 임목수확작업의 작업강도 분석

백승안,이은재,남기훈,조구현 한국산업융합학회 2020 한국산업융합학회 논문집 Vol.23 No.4

This study was conducted to analyze the physical strain with heart rate monitor in timber harvesting operations in order to reduce occupational accidents. The timber harvesting activities are manual cutting(felling, limbing and bucking) with a chainsaw and extraction by cable yarder. The study took place on Japanese larch stand. The average height was 26m and average diameter at breast height(DBH) was 3 7cm. The havest unit was gentle slope to steep slope. Results showed that the heart rate increases for chocking, felling, limbing and bucking were 94.0%, 87.9%, 84.8% and 56.4% respectively. The rate of Work Load Index was higher in the limbing(61.4%) activity than other activities chocking(55.2%), felling(54.1%) and bucking(32.1%). During 50% working heart rate test it was found that limbing(1.09), chocking(1.05) and felling(1.04) was exposed to high work intensity compared to bucking(0.83). The results showed that maximum acceptable work times(felling, chocking and limbing) were 2.30 hour, 1.85 hour and 1.60 hour respectively. To avoid occupational accidents, timber harvest workers may use a suitable working hour schedule to felling, chocking, limbing.

로지스틱 회귀분석을 이용한 임도붕괴 위험도 평가

백승안 ( Seung-an Baek ),조구현 ( Koo-hyun Cho ),황진성 ( Jin-sung Hwang ),정도현 ( Do-hyun Jung ),박진우 ( Jin-woo Park ),최병구 ( Byoungkoo Choi ),차두송 ( Du-song Cha ) 한국임학회 2016 한국산림과학회지 Vol.105 No.4

임도 사면의 붕괴는 환경적 피해 뿐 만 아니라 사회·경제적 손실을 발생시킨다. 본 연구는 2013년 집중호우로 임도 붕괴가 발생한 강원도 홍천군 화촌면 지역을 대상으로 GIS의 속성정보와 로지스틱 회귀분석을 이용하여 임도 붕괴지 위험도 평가를 실시하였다. 로지스틱 회귀분석결과, 토성이 사토인 지역의 회귀계수는 6.616으로 임도붕괴에 가장 위험성이 높았으며, 경급이 중경목인 지역의 경우 회귀계수가 -3.282로 임도사면의 안정성이 높았다. 임도붕괴지의 정오분류결과는 74.6%의 분류정확도를 보였다. 로지스틱 회귀모델식을 이용하여 전 구간을 대상으로 적용해 본 결과, 임도붕괴지의 경우 0.5의 기준점 보다 높은 0.7이상의 구간에서 가장 많이 분포하여 붕괴가능성이 높은 것으로 나타났다. 임도 위험도 평가의 판별적중률로 볼 때 임도의 산림환경 및 입지인자의 분석을 통해서도 충분한 붕괴위험 평가가 가능할 것으로 사료된다. Slope failures in forest roads often result in social and economic loss as well as environmental damage. This study was carried out to assess susceptibility of slope failures of forest roads in Hongcheon-gun, Gangwon-do where many slope failures occurred after heavy rainfall in 2013 using GIS and logistic regression analysis. The results showed that sandy soil (6.616) in soil texture type had the highest susceptibility to slope failures while medium class (-3.282) in tree diameter showed the lowest susceptibility. A error matrix for both slope failure and non-slope failure area was made and a model was developed showing a classification accuracy of 74.6%. Non-slope failures area in the forest roads were classified mostly in the range of >0.7 which was higher values than the classification criteria (0.5) used by the logistic regression model. It is suggested that considering forest environment and site factors related to forest road failures would improve the accuracy in predicting susceptibility of slope failures.

숲가꾸기를 위한 풀베기와 칡덩굴제거작업의 근골격계 부담 분석

이은재,백승안,조구현 한국산림과학회 2020 한국산림과학회지 Vol.109 No.2

A forest operation is considered as one of the riskiest environments for the development of musculoskeletal disorders because operators are exposed to harmful environmental conditions such as rough terrain, inclement weather, and poor working postures. In weed and kudzu removal operations, manual application is still common in Korea. In this study, we evaluated the ergonomic conditions of weed and kudzu removal in regeneration forests and the associated risk of musculoskeletal disorders. The risk of musculoskeletal disorders was evaluated using the Ovako Working Posture Analysis System and postural risk index. Postural risk was significantly higher for kudzu compared with weed removal operations. This suggests that kudzu removal operations must be improved to decrease postural risk. 산림작업은 비정형화된 작업 환경(날씨, 지형)에서 신체의 반복적인 동작 등으로 인하여 근골격계 질환에 취약하다. 특히, 조림목의 원활한 생장을 위해 실행하는 풀베기와 칡덩굴제거 작업은 여전히 많은 인력이 투입되고 있으며, 이 작업자세에 대한 인간공학적 평가가 필요하다. 따라서 본 연구에서는 OWAS (Ovako Working Posture Analysis System) 분석방법을 이용하여 예초기를 이용한 풀베기 작업과 낫ㆍ손톱을 이용한 칡덩굴제거 작업의 신체부담을 정량적으로 평가하였다. 또한 작업자세 위험도 지수(Postural risk index: PRI)를 통하여 산림작업의 위험 정도를 분석하였다. 풀베기와 칡덩굴제거 작업원에 대한 작업자세를 분석한 결과, 칡덩굴제거작업의 작업자세 위험성이 풀베기작업에 비해 통계적으로 더높은 수준을 보였다. 칡덩굴을 제거하는 작업 과정 중에서 다리에서는 두 다리를 구부리는 자세와 무릎 꿇는 자세의 비율이 높게 나타나기 때문에 근골격계에 부정적 영향을 미치는 것으로 판단된다. 이 연구결과는 풀베기와 칡덩굴제거 작업원의 작업부하 및 근골격계 질환을 저감하는 기초자료로 활용될 수 있을 것으로 기대된다.

진료 회신율 증대

신준한,조승안,최선주,이혜자,김숙영,안명숙,고은정 한국의료QA학회 2008 가을학술대회 Vol.2008 No.3

진료 회신율 중대

신준한,조승안,고은정,최선주,이혜자,김숙영,안명숙 한국의료QA학회 2008 가을학술대회 Vol.2008 No.3

타워야더를 이용한 전간집재작업의 생산성 및 비용과 적정 노망밀도 분석

김민규,백승안,조구현,정도현,Kim, Min-Kyu,Baek, Seung-An,Cho, Koo-Hyun,Jung, Do-Hyun 한국산림과학회 2017 한국산림과학회지 Vol.106 No.3

The productivity, cost, and optimal forest road network density for tree-length yarding with K301-4 and HAM300 tower yarders were analyzed. The results showed that productivity decreased as the yarding distance increased. The productivity of the K301-4 was greater than that of the HAM300 as the maximum yarding distance was longer than 34 m. This difference increased as the load volume increased. As the K301-4 yarder had a higher purchase price and it took more time to set up compared to the HAM300, the HAM300 was cost effective. Therefore, in oder to introduce tower yarders to reduce operational cost, it is effective to increase the load volume during operations and to utilize the road network repeatedly for a long period. 본 연구는 우리나라에 도입된 오스트리아 Koller사의 K301-4와 우리나라에서 개발된 HAM300 타워야더의 전간집재작업에 대해서 작업시간을 측정하고, 작업생산성, 작업비용, 최적노망밀도에 대한 분석을 실시하였다. 최대집재거리가 길어질수록 생산성은 감소되지만 K301-4와 HAM300을 비교하였을 때, 최대집재거리가 34 m 보다 길어질수록 K301-4의 생산성이 높았으며, 1회당 집재재적이 커질수록 양측의 차이는 커지는 것을 확인하였다. K301-4는 HAM300에 비해서 기계가격이 높고, 타워야더의 설치 및 철거 소요시간이 더 커지므로 HAM300이 작업비용 측면에서 효율적으로 나타났다. 타워야더를 도입하여 작업비용을 절감하기 위해서는 장기간에 걸쳐 임내노망을 반복적으로 사용하고 1회당 집재재적을 늘리는 것이 유리하다고 판단된다.

내분비검사실 수탁검사 및 One Stop 진료서비스 활성화

이관우,김대중,조승안,고은정,임현채,이병주,김경미,박소라,차정현,김현정,이해리,최애라,김관중,황대석,박미순,권영숙 한국의료QA학회 2007 가을학술대회 Vol.2007 No.3

임업 사고 응급대응체계의 개선방안에 관한 연구

남기훈,박영수,김광일,조구현,이은재,백승안 한국산업융합학회 2019 한국산업융합학회 논문집 Vol.22 No.6

The estimated on-site accident rate in Forestry is relatively high. According to statistics of the accident, in the recent 5 years, from 2014 to 2018, forestry accidents have resulted in 98% of injuries and 87% of fatalities. Especially, there are significant geographical constraints to access to the scene in case of an accident. Even though the capacity of first aid capacity is notably emphasized its importance to minimize the scale of damages, the relevant employees have been educated only basic first aid, which is not considered circumstances or geographic limitations, by Occupation Safety and Health Acts. Therefore, the purpose of this study is to derive a direction for a forest emergency service system to increase forestry workers’ survival and prevent secondary injury through securing ‘Golden Time.’ This study conducts analyzing relevant laws and regulations in domestic and international settings as well as looking at several concerned accident cases. The outcome of analysis presents an issue regarding the implementation of onsite first aid in forestry and existing risk factors depending on the working process. Finally, we suggest two ways to improve the forest emergency service that are 1) an appropriate curriculum and kit for forest first aid; and 2) a system for emergency transfer through sharing information between National Fire Agency (NFA) and emergency medical service center, and emergency and rescue mission using helicopter from NFA and Korea Forest Service.