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조준휘 ( Junhwi Cho ),김채현 ( Chaehyeon Kim ),체리로즈고즈 ( Cherry Rose Godes ),임경재 ( Kyoung Jae Lim ),연재흠 ( Jaeheum Yeon ) 한국농공학회 2023 한국농공학회 학술대회초록집 Vol.2023 No.0
농업 지역의 지리 정보는 자원 관리와 농업 생산성에 있어 매우 중요하여 지리 정보 시스템(Geographic Information Systems, GIS)이 활용되고 있다. GIS를 활용하여 토양 조건, 침식, 기저유량 등 다양한 요인을 관리하고 예측이 가능하다. 그러나 기존 GIS는 넓은 지역의 지형, 수리 구조물 등 세밀하게 표현하는 데 한계가 존재하며, 수리 구조물과 같은 농업용 사회기반시설의 크기, 유지관리 이력 등의 정보 표현에 한계가 존재한다. 따라서, 본 연구는 농업용 사회기반시설의 효율적인 관리와 분석을 위해 3차원 모델에 다양한 정보가 포함된 Building Information Model(BIM)의 개념과 Web기반 GIS를 융합하여 새로운 형태의 사회기반시설물 정보관리 방법을 제안한다. 강원도 원주시의 흥업 저수지 수혜 지역을 대상으로, 현장 조사와 UAVs 촬영을 통해 수집된 데이터를 바탕으로 3차원 모델을 생성하고, 이를 Web 기반 지리 공간 시각화 플랫폼인 Cesium을 이용하여 지도상 실제 위치에 시각화하였다. 또한, 3차원 모델과 현장 조사를 통하여 얻어진 각 모델의 세부 정보를 입력하였다. 즉, 특정 모델을 선택하면 해당 모델의 상세 정보가 팝업창을 통해 표시되며, 직관적인 유지관리 정보관리가 가능하도록 하였다. 이러한 방법은 기존 GIS에서는 할 수 없었던 사회기반시설물 이력관리를 가능하게 하도록 하였다. 즉, 수자원 조절 및 관리에 중요한 역할을 하는 수리 시설물의 관리와 유지 보수 이력을 직관적으로 확인하고 분석할 수 있는 실질적인 관리 도구를 제공하며, 사회기반시설물과 수자원 관리 분야의 복잡한 패턴 분석에 체계적으로 기여하며, 현장 방문 없이 실내 환경에서 각 시설물의 정보를 분석과 비교를 가능하게 함으로써 향후 농업과 수자원 관리 분야의 연구와 실용적인 응용에 중요한 발판을 제공할 것으로 기대된다.
딥러닝 기반 농업용 사회기반시설물의 파쇄손상 보수 재료량 산출
조준휘 ( Junhwi Cho ),김채현 ( Chaehyeon Kim ),송유섭 ( Yooseob Song ),조영오 ( Youngoh Joh ),연재흠 ( Jaeheum Yeon ) 한국농공학회 2023 한국농공학회 학술대회초록집 Vol.2023 No.0
농업 환경에서 수로와 같은 콘크리트 기반의 농업용 사회기반시설물은 물과 항상 접촉하고 있으며, 이로 인한 수분 침투의 가능성으로 다른 사회기반시설물보다 열화 현상의 발생 가능성이 높다. 특히 콘크리트 표면 일부가 파손되거나 떨어져 나가는 현상인 파쇄손상은 손상 부위를 통해 콘크리트 내부로의 수분 침투를 더욱 쉽게 만들어, 이로 인한 열화 현상을 촉진 시키므로 이를 방지하기 위한 보수 작업이 필요하다. 기존 파쇄손상의 보수 작업은 노동 및 시간 집약적이며, 작업자의 경험에 의존하여 보수 면적과 재료량을 계산하기 때문에 각 작업자 간의 계산 오차 및 동일 작업자 계산 시에도 작업자의 현재 상태에 따라 계산 오차가 발생할 수 있다. 또한 보수 작업은 현장에서 수행되며, 특히 수로 보수의 경우 작업자의 안전 및 보수재료 양생기간 확보를 위해 물의 흐름을 차단해야 하는 단점이 존재한다. 이러한 단점을 극복하기 위해 본 연구에서는 딥러닝 기반의 You Only Look Once(YOLO) 알고리즘과 정확한 보수 면적 및 보수 재료량 계산을 위해 자체 개발한 프로그램을 활용한 파쇄손상의 보수 재료량 산출 방법을 제안한다. 제안된 방법은 고화질 카메라를 사용하여 사회기반시설물의 상태를 촬영하였으며, 파쇄손상에 대해 YOLO 알고리즘의 최신 버전인 YOLOv8을 학습시킨 후 학습된 YOLOv8을 활용한 사회기반시설물 상태 사진 분석을 통해 사진 속 파쇄손상 탐지 및 면적을 계산하였다. 이후 계산된 파쇄손상의 면적 정보를 기반으로 자체 개발한 프로그램에 입력하여 국토교통부에서 제시한 파쇄손상의 부분 단면 보수의 면적 산출 기준(KDS 44 50 20)으로 컴퓨터가 일관적이고 정확한 계산을 통해 보수 면적과 보수 재료량을 계산하였다. 본 연구에서 제안된 방법은 기존 노동과 시간 집약적인 파쇄손상 탐지 및 면적 계산을 극복할 것이며, 일관되고 정확한 계산을 통해 작업자 계산에 의한 오차의 영향을 줄일 수 있을 것으로 기대한다.
대량 폐동맥 혈전색전증으로 인한 심정지 환자의 심폐소생술 - 혈전용해제사용 경험 2 예 -
조준휘(Jun Hwi Cho),황성오(Sung Oh Hwang),이강현(Kang Hyun Lee),이진웅(Jin Woong Lee),이서영(Seo Young Lee),박해상(Hae Sang Park),김성환(Seong Whan Kim) 대한응급의학회 2002 대한응급의학회지 Vol.13 No.1
The massive pulmonary thromboembolism is serious illness that can lead to death within an hour after its occurrence. The incidence of cardiac arrest caused by massive pulmonary thromboembolism has been known as about 7%. Invasive therapeutic modalities to treat massive pulmonary thromboembolism during cardiac arrest including thoracotomy or cardiopulmonary bypass have been shown little effect. Administration of a thrombolytic agent is an alternative choice of treating massive pulmonary thromboembolism during cardiac arrest. This report describes our experience of cases with massive pulmonary thromboembolism that were treated with administration of a thrombolytic agent during CPR.
옥택근,조준휘,박찬우,천승환,이승용,김성은,최기훈,배지훈,서정열,안희철,안무업,조병렬,김용훈,Ok Taek Geun,Cho Jun Hwi,Park Chan Woo,Cheon Seung Whan,Lee Seung Yong,Kim Sung Eun,Choi Ki-Hoon,Hae Ji Hoon,Seo Jeong Yeul,Ahn Hee Cheol,Ahn Moo Eo 대한임상독성학회 2005 대한임상독성학회지 Vol.3 No.1
The majority of acute toxic poisoning occur via oral route. The most important emergency treatment of acute poisoning are gastric lavage. Gastric lavage should be considered a patient has ingested a potentially life-threatening amount of a poison and the procedure can be undertaken within 60 mins of ingestion. But, gastric lavage does not consist properly in the cases of emergency situation or an inexperienced doctors treat. The purpose of this study was to determine whether gastric lavage is performed properly. Eighty patients were enrolled in the study in 12-month period from January to December 2002. A retrospective chart review was performed on patients identified as drug overdose who admitted to ER. To assess whether there was a subgroup of patients who may have been candidates for the initiation of gastric lavage in the ER, the patients divided in two groups by time interval from toxin ingestion to ER arrival. The group 1 that admit within 60 minutes after drug ingestion was 38 cases ($47.5\%$), and the group 2 patient who admitted after 60 minutes was 42 cases ($52.5\%$). The average age was $44\pm19$ years in group 1, and $48\pm24$ years in group 2. There were no differences in sexual distribution of two groups. The mean time interval was $49\pm20$ minutes in the group $1,258\pm190$ minutes in the group 2. Only thirty ($37.5\%$) of the patients had an overdose for which the treatment of gastric lavage was potentially feasible according to guideline. The correctly performed gastric lavage was 18 ($47.4\%$) in group 1, 12 ($28.6\%$) in group 2. We must enforce education about the gastric lavage, and do so that may treat according to guideline.
김성은,조준휘,천승환,이승용,최기훈,배지훈,서정열,안희철,안무업,옥택근,박찬우,Kim, Sung-Eun,Cho, Jun-Hwi,Cheon, Seung-Whan,Lee, Seung-Young,Choi, Ki-Hoon,Bae, Ji-Hoon,Seo, Jeong-Yeul,Ahn, Hee-Cheol,Ahn, Moo-Eob,Ok, Taek-Gun,Park, Chan 대한임상독성학회 2005 대한임상독성학회지 Vol.3 No.2
Paraquat, is a widely used for its great effect as a herbicide. But the mortality rate by paraquat intoxication is known to be very high. It is thought to act by changing form to superoxide and peroxide free radical. Almost paraquat intoxication is through ingestion. A few intoxication of paraquat is through skin absorption. But there was no known death case through skin absorption. We experienced a case of a expired patient by paraquat intoxication through skin abrasion and scratching wound. A 75-year-old man was visited emergency room after motorcycle accident during transporting paraquat. He has multiple abrasion and scratching wound on extremities, and pelvic bone fracture. There was no evidence of ingestion of paraquat. But serum/urine gramoxone level was all positive. In spite of wound irrigation and hemoperfusion, his condition was been gone form bed to worse. 2 days after, multiple organ failure and the respiratory arrest were developed and he was expired. Paraquat intoxication through skin wound is extremely dangerous and death by that could possibly happen
옥택근,조준휘,박찬우,김성은,최기훈,배지훈,서정열,정재봉,안희철,안무업,유기철,Ok, Taek-Gun,Cho, Jun-Hwi,Park, Chan-Woo,Kim, Sung-Eun,Choi, Ki-Hoon,Bae, Ji-Hoon,Seo, Jeong-Yeul,Chung, Jae-Bong,Ahn, Hee-Cheol,Ahn, Moo-Eob,You, Ki-Cheol 대한임상독성학회 2004 대한임상독성학회지 Vol.2 No.2
Acute poisoning is one of the diseases which need the most fastest emergency measures at the very beginning. However, at present, The Korea doesn't manage the toxication all over the country, and in particular, there is no guide to medical cure paying due regard to the traits of each area. This paper focused on the issue that the necessary data in preparing the facilities for the treatment of the poisoned patients and materials for medical treatment including antidote would have to be collected, after finding the special features of the symptoms by searching the present conditions of the poisoning in small towns next to farm villages in the North area of Youngseo, Kangwon province. This study was based on the questionnaires from 111 patients who were carried into the emergency room by the poisoning in two university hospitals of the North area of Youngseo, Kangwon, for one year, 2002. Upon investigation, the patients(111) visiting emergency room by the acute poisoning during the research period was found to be 0.37 percent of all patients(30,085) visiting emergency room. Among them, the most high percentage was given in their twenties and thirties at the rate of $39.6\%$, and the ratio($40.5\%$) of the poisoned patients after their fifties was much higher than a research($10\%$) of other areas. Many poisoned patients came to their rescue in an emergency room generally in spring and in winter, from 7 a.m. to 3 p.m. Agricultural chemical of the toxic materials had a majority at a ratio of $57.7\%$, and paraquat of the agricultural chemicals was found to have a lot of toxicity by $31.7\%$. As the trace of the toxication, the oral poisoning was common by $89.2\%$, and $55.9\%$ in the case of operating gastric lavage and nasogastric irrigation, but only $14.4\%$ for prescribing antidote. The mortality of the acute poisoned patients was $17.2\%$, and the toxication by paraquat held a majority. As a result, the acute poisoning of the North area in Youngseo, Kangwon had both of the characteristics of the rural and the city, and the patients over their fifties by the population aging had more attack of the disease than other regions. Also, with the high ratio of the toxication by the agricultural chemicals, especially, the lethal agricultural chemical was used frequently. Therefore, these dangerous situations need to find the ways to cope with.
박찬우,옥택근,조준휘,최동욱,허애영,이희영,김용훈,조병렬,김성은,최기훈,배지훈,서정열,정재봉,Park,, Chan-Woo,Ok, Taek-Gun,Cho, Jun-Hwi,Choi, Dong-Wook,Her, Ae-Young,Lee, Hee-Young,Kim,, Yong-Hoon,Cho, Byung-Ryul,Kim,, Sung-Eun,Choi, Ki-Hoon 대한임상독성학회 2004 대한임상독성학회지 Vol.2 No.1
With a recent well-being boom, our interest in chemical-free vegetables is also increasing. So, some people are trying to take in wild plants chosen by themselves. However, others often come to their rescue in an emergency department after eating them, caused by their misunderstanding poisonous herbs as edible vegetables. We have ever seen two persons carried into the emergency department with bradycardia and shock incurred by his intake by confusion between Caltha palustris and Ligularia fischeri lately. There were symptoms such as epigastric pain, nausea, vomiting and so on in their cases, and the symptoms of bradycardia and hypotension continued. Owing to sustained bradycardia and hypotension states, we applied a dopamine to a patient, and then the in-patient left the hospital two days later. We presumed the cause of the two symptoms appeared in two cases to be a saponin in Caltha palustris. For that reason, if someone has the bradycardia and hypotension symptoms from an unknown cause after taking in wild plants, they have to consider a toxication by the Caltha palustris. Therefore, this paper focused on the issue that unexpected poisoning would have to be prevented by studying about wild plants much more and informing the toxic risk from the plants.