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Tox-Info 시스템의 중독정보 데이터베이스와 응급실에 내원하는 중독 환자 분포의 비교
김현종 ( Hyun Jong Kim ),김양원 ( Yang Weon Kim ),김현 ( Hyun Kim ),박창배 ( Chang Bae Park ),소병학 ( Byung Hak So ),이경룡 ( Kyeong Ryong Lee ),이경우 ( Kyung Woo Lee ),이경원 ( Kyung Won Lee ),이성우 ( Sung Woo Lee ),이장영 ( 대한임상독성학회 2012 대한임상독성학회지 Vol.10 No.1
Purpose: The Tox-Info system is a poisonous substance information database developed by the Korean National Institute of Food and Drug Safety Evaluation. The aim of this study was to estimate the coverage effectiveness of the Tox-Info system by comparing the toxic substances included in the database with the distribution of the toxic substances implicated in the cases of intoxicated patients presenting to emergency departments. The secondary aim of the study was to propose any additional substances that should be added to the database. Methods: We retrospectively reviewed the medical records of patients suffering with toxic exposure who had visited any of 12 selected emergency departments in Korea from January 2010 to December 2011. The identified toxic substances were classified into groups including prescription drugs, agricultural chemicals, household products, animals or plants, herbal drugs, and others. We calculated the coverage rate of the Tox-Info database relative to the number of intoxication cases and the type of toxic substances involved. Results: A total of 5,840 intoxicated patient records were collected. Their mean age was 46.6±20.5 years and 56.2% were female. Of the total intoxication cases, 87.8% of the identified toxic substances were included in the Tox-Info database, while only 41.6% of all of the types of identified toxic substances were included. Broken down by category, 122 prescription drugs, 15 agricultural chemicals, 12 household products, 14 animals or plants and 2 herbal drugs involved in poisoning cases were not included in the Tox-info database. Conclusion: This study demonstrated the clinical usefulness of the Tox-Info system. While 87.8% of the substances involved in the cases were included in the Tox-Info database, the database should be continuously updated in order to include even the most uncommon toxic substances.
WinDS3000<sup>TM</sup> 시스템의 블레이드 개발 및 시험
이상일(Lee, Sang-Il),이경우(Lee, Kyeong-Woo),주완돈(Joo, Wan-Don),이기학(Lee, Ki-Hak),박종포(Park, Jong-Po) 한국신재생에너지학회 2009 한국신재생에너지학회 학술대회논문집 Vol.2009 No.11
A new blade has been developed to apply to Doosan 3MW offshore wind turbine named as WinDS3000TM. The 3MW blade has been designed by the concept of slim external shape and optimized structure. High-performance glass fiber reinforced epoxy composites were used as the main material of the blade. The blade was manufactured using vacuum infusion process in order to increase the fiber volume fraction and to reduce micro-porosities. The blade has successfully passed the full-scale blade static test for certification. During the test, micro-failure signal and strain change of the blade were measured using acoustic emission sensors and strain gages. The blade has robust structure and weighs lighter compared to conventional blade since the new blade was designed by optimization process. The 3MW blade will be commercially applied to WinDS3000^{TM} in 2010.
농어, Lateolabrax japonicus와 점농어, L. maculatus 정역교잡의 난 발생 및 자치어 형태발달
양석우(Seok Woo YANG),곽은주(Eun Joo KWAK),이경우(Kyung Woo LEE),한경호(Kyeong Ho HAN),이원교(Won kyo LEE) 전남대학교 수산과학연구소 2008 수산과학연구소논문집 Vol.17 No.1
농어류의 교잡종 생산 가능성을 알아보기 위해 농어(♀)×점농어(♂) 및 점농어(♀)×농어(♂)의 난과 자치어 발생을 조사하였다. 교잡종간 난발생과정에는 거의 차이가 없었다. 농어와 점농어의 정역교배에 의해 생산된 수정란의 수온에 따른 부화 시간과 부화율은, 농어(♀)×점농어(♂)의 경우 20.0℃에서 48시간 20분, 68.3%, 18.0℃에서 50시간 25분, 70.6%, 16.0℃에서 70시간, 76.8%였고, 점농어(♀)×농어(♂)의 경우 20.0℃에서 48시간 30분, 70.5%, 18.0℃에서 50시간 5분, 73.8%였다. 농어(♀)×점농어(♂)과 점농어(♀)×농어(♂)의 부화 직후 자어는 전장이 각각 4.17±0.06 ㎜, 3.80±0.03㎜로 비슷하였다. 그러나 흑색소포가 농어(♀)×점농어(♂)에서는 체표면에 전체적으로 분포하였으나, 점농어(♀)×농어(♂)에서는 항문을 전후로 짙게 띠를 형성하고 있었다. 이들은 부화 4일째부터 섭이를 시작하여 44일째에 치어기에 이르렀다. 치어기에 이른 시기의 전장은 농어(♀)×점농어(♂)가 15.27±0.33 ㎜, 점농어(♀)×농어(♂)가 17.00±0.50 ㎜로 유의차는 없었다. 교잡의 자치어기 일령과 전장의 관계에 대한 회귀직선식은 농어(♀)×점농어(♂)가 Y = 0.2722X + 3.3277 (r = 0.9786), 점농어(♀)×농어(♂)은 Y = 0.2895X + 3.2526 (r = 0.9779)로 나타났다. For the possibility of hybrid production, we investigated the development of embryo and larvae in sea bass(♀)×spotted sea bass(♂) and spotted sea bass(♀)×sea bass(♂). There were few differences in the embryo developmental process among hybrids. Hatching rates were 76.8% (16.0℃, 70 hours), 70.6% (18.0℃, 50 hours 25 minutes), 68.3% (20.0℃, 48 hours 20 minutes) in sea bass(♀)×spotted sea bass(♂); 73.8% (18.0℃, 50 hours 5 minutes), 70.5% (20.0℃, 48 hours 30 minutes) in spotted sea bass(♀)×sea bass(♂). Melanophores appeared as the vertical band on lateral sides of the body in spotted sea bass(♀)×sea bass(♂), but not in sea bass(♀)×spotted sea bass(♂). The larvae of 4 days after hatching ate food in all groups. Hatched larvae took 44 days to develop into juveniles at 18~20℃ in all groups. Total length of the juveniles was 15.27±0.33 ㎜ and 17.00±0.50 ㎜ in sea bass(♀)×spotted sea bass(♂) and spotted sea bass(♀)×sea bass(♂), respectively. The relationship between the days (X) and the total length (Y) of larvae and juveniles were: sea bass(♀)×spotted sea bass(♂): Y=0.2722X + 3.3277 (r=0.9786) spotted sea bass(♀)×sea bass(♂): Y=0.2895X + 3.2526 (r=0.9779)
정관조(Gwan Jo Jeong),이경우(Kyeong Woo Lee),김현희(Hyun Hee Kim),정의선(Eui Sun Jeong),박현(Hyeon Park),한선희(Sun Hee Han) 大韓環境工學會 2010 대한환경공학회지 Vol.32 No.5
상수원수의 특성 변화와 갈수기 조류 발생으로 인한 원수 pH 상승 시기에 이산화탄소(CO₂)를 주입하여 원수 pH를 조정함으로써 혼화·응집지의 응집 효율을 향상시켜 생산 정수 중의 잔류알루미늄, 탁도, 입자수 등의 농도를 낮추는 방법을 조사하고자 본 연구를 실시하였다. 원수 pH 8.0 이상이며 밤·낮의 pH 변화가 크지 않은 2월, 3월, 4월, 12월 중에 이산화탄소 주입 전·후의 정수 수질 변화를 고찰하였으며, 정수처리 공정수를 대상으로 정수 수질평가와 밀접한 관련이 있는 알루미늄, 탁도, 입자수, TOC, THMs, 2-MIB, geosmin 등의 농도 변화를 조사하였다. 조사결과, 혼화·응집지의 응집 효율 향상으로 입자수, 탁도, 알루미늄과 같은 입자성 물질과 무기물질은 감소하였으며 서울시 정수 목표수질값인 입자수 30개/mL 이하, 탁도 0.05 NTU 이하, 알루미늄 0.02 mg/L 이하의 양호한 정수 수질을 유지하기 위해서는 원수 pH 상승시기 이산화탄소를 주입하여 착수정원수 pH를 7.4 이하로 유지해야 하는 것으로 나타났다. 또한 THMs, CH, HAAs, HANs 등 소독부산 물과 이취미 유발물질인 2-MIB, geosmin 농도는 원수 pH 변화와 무관함을 알 수 있었으며, 특히 이취미 유발물질인 2-MIB, geosmin는 pH 변화보다는 원수 중의 2-MIB, geosmin 농도가 정수 중의 농도 결정에 주요한 영향을 주는 것으로 나타났다. The purpose of the study is to find ways to decrease turbidity and residual aluminum by improving the efficiency of coagulation process through controlling the pH of the source water with CO₂ when the pH increases by algal bloom or by the characteristics of the source water. Water quality parameters were monitored before and after CO₂ addition in February, March, April, and December, when the pH of the source water is over 8.0 and constant regardless of day and night. Water quality parameters closely related with evaluation of treated drinking water quality were monitored in detail, e.g. aluminum, turbidity, particle counts, TOC, THMs, 2-MIB, and geosmin. According to the results, inorganic water quality parameters such as turbidity, particle counts, and aluminum were decreased due to improved efficiency of the coagulation process. It was concluded that the pH of the water in the arrival basin must be controlled below 7.4 by adding CO₂ when the pH of the source water increasing. By controlling pH with CO₂, the water quality could be maintained within the drinking water quality goal of Seoul City (<30 particle/mL of particle count, <0.05 NTU of turbidity and <0.02mg/L of aluminum). The change of the pH could not affect the concentrations of DBP`s (e.g., THMs, CH, and HAAs) and taste/odor causing compounds (e.g., 2-MIB and geosmin). 2-MIB and geosmin were affected more by their initial concentrations in the source water.
비만하지 않은 환자들에서 족저 근막염과 관련된 생역학적 인자
이종화 ( Jong Hwa Lee ),김상범 ( Sang Beom Kim ),이경우 ( Kyeong Woo Lee ),한동욱 ( Dong Wook Han ) 대한스포츠의학회 2011 대한스포츠의학회지 Vol.29 No.1
The purpose of this study was to identify the biomechanical factors that correlate with plantar fasciitis in non-obese patients whose body mass index were below 25 kg/m². The subjects were non-obese patients who were diagnosed as plantar fasciitis by clinical appearance, physical examination, and ultrasonographic findings (n=48), and non-obese control persons without clinical diagnosis of plantar fasciitis (n=30). The two groups were compared on fat pad thickness, ankle dorsiflexion range of motion (ROM), resting calcaneal stance position (RCSP), incidence of calcaneal spur, and calcaneal pitch. The results showed that, there were statistically significant differences between two groups in ankle dorsiflexion ROM, RCSP, and calcaneal pitch (p<0.05). Multiple logistic regression analysis showed ankle dorsiflexion ROM and RCSP strongly correlated with presence of plantar fasciitis as independent predictors (p <0.05). In conclusion, reduced ankle dorsiflexion ROM and negative RCSP (valgus tendency in rear foot) may be the biomechanical factors associated with plantar fasciitis in non-obese patients.