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도시근교 관광지에서의 쓰레기 배출특성에 관한 조사연구 : The Gu-Gok Falls in Summer Season 하절기 구곡폭포를 중심으로
이찬기,이해승,류돈식,강동구 江原大學校 産業技術硏究所 1997 産業技術硏究 Vol.17 No.-
This investigation was carried out ot study on the generation property, management and separate collection rate of solid waste in the Gu-Gok Falls. Generation rate of solid waste was 80.785kg/day and unit waste generation rates was 65.55g/dayㆍtourist one person. Physical component of solid waste were garbage 46%, papers 20%, empty bottles 10%, respectively. A plan is required to decrease generation rate of garbage waste, As result to investigate separated garbage can, papers and can were separated more than 60%. But empty bottles and scrap iron were separated less than 50%. P.E.T, steel can, aluminum can and empty bottles were 20% of total generation rate, and profit of reuse is ₩700,800/year.
이동우,강웅구,류인균,정도언,조맹제,우종인,김용식,권준수 大韓神經精神醫學會 2001 신경정신의학 Vol.40 No.3
연구목적 : 강박증의 동반인격장애에 관한 연구들은 기존의 개념과 달리 강박성 인격장애와 강박증 간에는 특이적인 관계가 없으며, 강박증 환자들은 다양한 인격장애를 동반한다는 결과를 보여주었다. 그러나 이러한 연구들은 동반 인격장애에 관한 기술적인 분석에 그쳤고, 강박증 환자군의 임상 증상과 동반 인격장애 양상간의 연관성에 관한 분석을 시행하지 않았다. 본 연구의 목적은 강박증 환자군에서의 동반 인격장애를 평가하고 강박증 환자의 다양한 증상과 동반 인격특성 간의 연관성에 대해 연구하는 것이다. 방 법 : DSM-IV의 강박증의 진단기준을 만족하는 59명의 환자군과 32명의 정상대조군을 대상으로 인격장애 질문지를 적용한 후 4∼6점의 절단점을 기준으로 인격장애의 진단이 내려졌다. 먼저 환자군과 정상대조군 간의 특정 인격장애 빈도의 차이를 알아보기 위하여 Fisher's exact test를 시행한 후, 두집단 간에 유의한 차이가 있는 것으로 밝혀진 인격장애 척도 점수에 미치는 Y-BOCS,BDI,BAI점수의 영향을 알아보기 위하여 다중선형회귀 분석을 시행하였다. 결 과 : 1) Fisher's exact test 결과 강박증 환자군은 정상 대조군에 비해 경계성 인격장애(18.6%vs 0%, p=0.007). 회피성 인격장애(55.9% vs 18.8%, p=0.001), 우울성 인격장애(40.7% vs 0%, p=0.000)의 비율이 유의하게 높았다. 2) 다중선형회귀분석 결과 Y-BOCS 점수 (t=2.10, p=0.043)와 BAI점수(t=2.60, p=0.014)는 경계성 인격장애 점수에 유의한 영향을 주는 것으로 나타났다. 또한 BAI점수(t=3.23, p<0.003)는 회피성 인격장애 저수에, BDI점수 (t=3.08, p=0.004)는 우울성 인격장애 점수에 유의한 영향을 주는 것으로 나타났다. 결 론 : 강박증 환자군은 정상 대조군에 비해 회피성 인격장애, 우울성 인격장애, 경계성 인격장애의 동반율이 높고, 강박증이 경계성 인격장애의 심각도에 유의한 영향을 미치는 것으로 사료된다. The purpose of this study was to assess the comorbid axis-Ⅱ disorders of obsessive compulsive disorder(OCD) patients and to investigate the relationship between symptoms of OCD and the comorbid personality traits. The subjects were 59 patients who met DSM-IV criteria for obsessive-compulsive disorder and 32 normal controls. All subjects completed personality Disorder Questionnaire-IV(PDQ-IV). The patients completed Beck Depression Inventory(BDI) and Beck Anxiety Inventory(BAI), and were rated with Yale-Brown Obsessive Compulsive Scale(YBOCS). The results were as follows. 1) The OCD patients showed significantly higher prevalence of avoidant, depresssive and borderline personality disorder(p<0.01) compared to controls. 2) The BAI score had significant effect on the avoidant personality score(t=3,23, p<0.003). The BDI score had significant effect on the depressive personality score(t=3.08, p=0.004). The YBOCS(t=2.10, p=0.043) and BAI(t=2.60, p=0.014) scores had significant effects on the borderline personality score. We found that OCD patients had higher prevalence of avoidant, depressive, and borderline personality disorders. We also found that obsessive-compulsive symptoms have significant effect on the severity of borderline personalty traits. We suggest that it would be very helpful to consider Axis-Ⅱ disorders for managing patients with obsessive-compulsive disorder.
이해승,류동식,강동구,한동준 도립 강원전문대학 1999 道立 江原專門大學 論文集 Vol.2 No.-
One of the economic and efficient process to treat the leachate which venerates at the landfill is the combined treatment with the sewage, which can result in the over-loading and the side effect at the treatment of wastewater. Therefore, this study aims to compare with the generalized A/S process and BNR one in consideration of the nutrient, which apply the combination treatment, and to derive the proper mixing rate of A/S process and BNR one.
광주지역 황사기간중의 대기 건성침적량의 특성에 관한 연구
류일광,이치영,강영식,노기환,김관천,유경석,강동구 광주보건대학 2002 論文集 Vol.27 No.-
The deposition amounts of Ferric that are naturally originated elements from earth crust. The rate was 14,993㎎/㎡ day at the rang yellow sand season, which was 20 times higher than at the ordinary times. Artifical earth crust element Cr were lower than the amount yellow sand an increase. Naturally originated elements origination, movment channel and mutual be close the correlations of elements each other and were lower than in artificially originated elements. Deposition amount of chang were higher before yellow sand, lower before yellow sand of origination, time were inverse proportion. The average concentration of liquefactive metals high, compare heavy matal and numerous of deposition amount. A1so gain liquefactive matal were rescattering numerous on account of little mass deduction.
〈학술논문 or 기술논문〉기어 결함 검출을 위한 포락처리와 웨이블릿 변환의 적용
구동식(Dong Sik Gu),이정환(Jeong Hwan Lee),최병근(Byeong Keun Choi),양보석(Bo Suk Yang) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
Vibration analysis is widely used in machinery diagnosis and the wavelet transform has also been implemented in many applications in the condition monitoring of machinery. In contrast to previous applications, this paper examines whether acoustic signal can be used effectively along vibration signal to detect the various local fault, in local fault of gearboxes using the wavelet transform. Moreover, envelop analysis is well known as useful tool for the detection of rolling element bearing fault. In this paper, a acoustic emission (AE) sensor is employed to detect gearbox damage by installing them around bearing housing at driven-end side. Signal processing is conducted by wavelet transform and enveloping to detect her fault all at once gearbox using AE signal.
구동식(Dong Sik Gu),이정환(Jeong Hwan Lee),김학은(Hack Eun Kim),최병근(Byeong Keun Choi) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.10
Imported Liquefied natural gas is transported to ground storage tanks via pipeline using cargo pump on the LNG carrier vessel. In LNG receiving terminal, LP LNG pumps are installed in the storage tanks and supply the LNG to secondary pumps with 8bar. So LP LNG pumps should be maintaining stable conditions to manage the LNG in stock. In this paper, to find out the cause of abnormal vibration at LP LNG pump, vibration analysis has been performed. Therefore, it was estimated and confirmed that random low frequencies were originated from fluid instabilities due to the inducer bolt being loosed because of the thermal expansion difference between bolt and other part in the cryogenic fluid. So, to prevent the looseness of inducer bolt, the dimensions of inducer bolts are modified. After modification, low frequency bands could be disappeared and pumps could recover its original performance characters.
기어 결함 검출을 위한 포락처리와 웨이블릿 변환의 적용
구동식(Dong-Sik Gu),이정환(Jeong-Hwan Lee),양보석(Bo-Suk Yang),최병근(Byeong-Keun Choi) 대한기계학회 2008 大韓機械學會論文集A Vol.32 No.11
Vibration analysis is widely used in machinery diagnosis and the wavelet transform has also been implemented in many applications in the condition monitoring of machinery. In contrast to previous applications, this paper examines whether acoustic signal can be used effectively along vibration signal to detect the various local fault, in local fault of gearboxes using the wavelet transform. Moreover, envelop analysis is well known as useful tool for the detection of rolling element bearing fault. In this paper, a acoustic emission (AE) sensor is employed to detect gearbox damage by installing them around bearing housing at driven-end side. Signal processing is conducted by wavelet transform and enveloping to detect her fault all at once gearbox using AE signal.