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전흥원,김용수,태순호 한국산업안전학회 2002 한국안전학회지 Vol.17 No.2
At present, the Polyethylene piping, on supporting LNG is widely used because of it's disposition which are anti-corrosion, flexible and so on. However, it has a few kinds of risk which are the possibility of piping leak, the character of easily corroded and so on. For giving solution, this study is intended to experiment the intension of the PE pipe after melted and when it is melting, the condition which are temperature and pressure is changed. the melting condition in temperature and pressure is adapted identically. After melting, it's joint is tested as intension. The result is that the effect of temperature in intension is more effective than pressure. In 210℃, 20㎏/㎠ condition, the melting intension has the highest. Compare to the Butt melting joint and the Saddle melting joint, the former was 214㎏/㎠ and the latter was 50㎏/㎠(bead 2~3㎜) and 73㎏/㎠(bead 5~7㎜). It means that the Butt melting method has more intensive than saddle. Consequently, the result shows that the liability and safety when PE pipe melting method is used will improve in pipe installation.
Ciprofloxacin의 돼지 호흡기 감염증 및 설사증에 대한 치료효과
전무형,김지영,채미경,서상희,김명철,박창식,김태용,윤효인 충남대학교 형질전환복제돼지연구센터 2004 논문집 Vol. No.8
To evaluate the clinical efficacy of ciprofloxacin (CFX) on treatment of the pigs with respiratory diseases or diarrhea. CFX at various dosages were administered intramuscularly to the diseased pigs selected from the pig farms located in Chungnam province. One hundreds and fourteen heads of pigs with respiratory diseases were divided into five groups and CFX at 0.25, 0.5, 1.0 (= 2.5mg CFX/Kg B.W.) and 2.0 doses were administered i.m. for 5 days. The recovery rates were found 31.8%, 73.9%, 91.3% and 92.0%, respectively, being higher than that of the untreated control group (19.0%). The mortality of the treated groups were 0%, that is lower than that of the control (9.5%). Seven kinds of bacteria were isolated from the respiratory organs of 86 pigs, and 34 (39.5%) of 86 pigs showed the complicated infection. In analyzing by the pigs infected with a single pathogen as P. multocida; A. pleuropneumonia. Staphyloccus spp. or Mymplasma spp., the recovery rates were 0∼66.6% at 0.25 dose, 66.6∼100% at 0.5 dose and 100% in all of 4 pathogens at 1.0 to 2.0 doses. At 0.25 dosage the pigs infected with A. pleuropneumonia showed the lowest recovery rate. One hundreds and twenty two heads of pigs with diarrhea were divided into five groups and CFX at 0.25, 0.5, 1.0 (= 2.5mg CFX/Kg B.W.) and 2.0 doses were administered i.m. for 5 days. The recovery rates were 29.1 %, 40.0%, 80.0% and 88.0%, respectively. The mortality of the treated groups were 0∼8.3%, being much lower than that of the control. Four kinds of bacteria were isolated from the fecal specimens of 94 pigs, and 84 (89.0%) of 94 pigs showed the complicated infection.
전태연,도규영,정종현,권용실,김석범 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.5
목 적 : 혈청 콜레스테롤 농도와 자살 등의 공격행동간의 연관성에 관한 여러 연구가 있었으나 일치된 결과를 보이고 있지 못하다. 이에 저자들은 다양한 진단의 정신과 입원 환자들 중 공격행동을 보인 환자의 콜레스테롤 농도를 정상 한국 성인에서의 혈청 총 콜레스테롤의 성별, 연령별 평균 및 표준편차와 percentile분포에 맞추어 공격행동 및 자살시도와 혈청 콜레스테롤 농도간의 연관성을 알아보기 위하여 본 연구를 시행하였다. 방 법 : 본 연구는 1994년 1월 1일부터 1995년 6월 31일까지 18개월간 카톨릭대학교 의정부성모병원 정신과 병동에 입원하였던 환자 중 콜레스테롤 농도를 얻을 수 있었던 127명을 대상으로 하였다. 대상 환자는 공격행동의 유무에 따라 공격군과 비공격군으로 분류하여 공격군 35명과 비공격군 92명의 자료를 얻었으며, 공격군은 Overt Aggression Scale을 사용하여 평가하였다. 측정된 각 환자의 콜레스테롤 농도는 정상 한국 성인에서의 혈청 총 콜레스테롤의 성별, 연령별 평균 및 표준편차와 percentile분포에 맞추어 4개의 군으로 나눈 후 공격행동 발생비율, 자살시도간의 차이를 알아보았다. 또한 공격행동을 보인 군에서도 각 콜레스테롤군 간의 총 공격 점수를 비교하였다. 결 과 : 1) 각 콜레스테롤군 간의 공격행동 발생비율에는 유의한 차이가 없었다. 2) 공격군에서 각 콜레스테롤군 간의 총 공격 점수는 유의한 차이를 보이지 않았다. 3) 각 콜레스테롤군 간의 자살시도 빈도는 유의한 차이가 없었다. 결 론 : 정신과 입원 환자의 혈청 콜레스테롤 농도를 정상 한국 성인에서의 혈청 총 콜레스테롤의 성별, 연령별 평균 및 표준편차와 percentile분포에 맞추었을 때 혈청 콜레스테롤 농도와 공격행동 및 자살시도에 유의한 연관이 없었다. Objectives : An association between serum cholesterol concentration and violent behavior has been suggested, but has not been consistently demonstrated. This study was conducted in order to evaluate the relation between serum cholesterol concentration and violent behavior in psychiatric inpatients who had been admitted at Uijongbu St. Mary's Hospital, the Catholic University of Korea from January 1994 to June 1995. Methods : We divided the 127 subjects into violent(35 subjects) and non-violent group(95 subjects). According to the percentile distribution of serum total cholesterol in healthy Korean adults, the subjects were classified into four subgroups : Group 1, subjects Whose cholesterol concentrations were below 26% of percentile distribution, Group 2, from 26% to 50%, Group 3, 51% to 75% and Group 4, above 75%. In the four cholesterol subgroups, the authors examined the incidence of violent behaviors and suicidal attempts. Within the violent group, total aggression score of four cholesterol subgroups was compared. Results : 1) Among the four cholesterol subgroups, there were no significant differences in the violent behavior. 2) Within the violent groups, total violent score of the four cholesterol subgroups showed no significant difference. 3) Among the four cholesterol subgroups, there were no significant differences in suicidal attempt. Conclusion : When the serum cholesterol concentrations of psychiatric inpatient applied to the percentile distribution of serum total cholesterol in healthy Korean adult, no association was found between serum cholesterol concentration and violent behavior and suicide attempt.
비화농성 삼출성 복수를 동반하는 질환에서 복막 침생검의 진단적 의의
정종훈,서용태,오덕환,채종구,정춘해,조건국 朝鮮大學校 附設 醫學硏究所 1986 The Medical Journal of Chosun University Vol.11 No.1
Percutaneous needle biopsies of peritoneum with Abrams needle and Cope needle were done un 64 patients with non-purulent exudative ascites, who was admitted to the department of internal medicine, Chosun University hospital, from January 1978 to Deccmber 1983. The diagnostic significance and safety of the needle biopsy was estimated. The results were as follows. 1. Adequate peritoneal tissue for pathological diagnosis was obtained in 53 cases(82.8%) among 64 cases. (Abrams needle 84.8%, Cope needle 80.6%) 2. Definitive diagnosis was obtained in 31 cases among 53 cases (58.6%). (Tuberculosis 23 cases, malignancy 8 cases). 3. As compared final diagnosis with biopsy result, the rate of final diagnosis corresponding with biopsy diagnosis was 58.8% in tuberculosis and 26.3%, in malignancy, but the rate of biopsy diagnosis corresponding with final diagnosis was 100% in both tuberculosis and malignancy. 4. Cases of chronic non-specific inflammation which were diagnosed by biopsy were 13cases(24.5%)among 53 cases, and among these cases, tuberculosis was 69.2% and malignancy 30.8% on final diagnosis and among 53 cases, histologically normal was 9 cases(16.9%) of which 33.3% was tuberculosis and 66.7% was malignancy on final diagnosis. 5. Of the malignant cases on final diagnosis, Positive cytologic examination of ascitic fluid was 16.7% 6. Primary losions of cancerous peritonitis were stomach cancer (38.9%) hepatocellular cancer(22.2%) colon cancer (11.1%) ovarian cancer (11.1%) Pancreatic cancer (5.6%). 7. Complication of percutaneous peritoneal biopsy was local swelling with leakage of ascitic fluid and the accident rate were 36.4,% in Abraham needle and 3.2% in Cope needle.
보행중심 도로환경 구축방법 연구 : 충남 금산읍 사례분석
김준용,김진태 한국교통대학교 2014 한국교통대학교 논문집 Vol.49 No.-
The Korean Ministry of Security and Public Administration enacted the Acts for highway pedestrian safety and comfort, based on social paradigm shifting from vehicle- to pedestrian-friendly highway environment. While it initiated local government policies supporting pedestrian-oriented environment, no practical guideline to establish the environment was available. This study proposes a comprehensive guideline devised based on the to-do items from the Acts to establish pedestrian-friendly environment. It includes diagnoses on existing highway conditions and interview surveys on public opinion to quantify local willingness to accept the target environment – the results can support decisions made on modification of the existing pedestrian streets. The proposed guideline was implemented as a pilot study in the city of Guemsan, Chungnam. The findings suggested that a combined survey on pedestrian environment and public works enhanced the efficiency of pedestrian-friendly environment establishment.
Ciprofloxacin의 돼지 호흡기 감염증 및 설사증에 대한 치료효과
전무형,김지영,채미경,서상희,김명철,박창식,김태용,윤효인 충남대학교 수의과대학 동물의과학연구소 2003 動物醫科學硏究誌 Vol.11 No.-
To evaluate the clinical efficacy of ciprofloxacin (CFX) on treatment of the pigs with respiratory diseases or diarrhea, CFX at various dosages were administered intramuscularly to the diseased pigs selected from the pig farms located in Chungnam province. One hundreds and fourteen heads of pigs with respiratory diseases were divided into five groups and CFX at 0.25, 0.5, 1.0 ( = 2.5mg CFX/Kg B.W.) and 2.0 doses were administered i.m. for 5 days. The recovery rates were found 31.8%, 73.9%, 91.3% and 92.0%, respectively, being higher than that of the untreated control group (19.0%). The mortality of the treated groups were 0%, that is lower than that of the control (9.5%). Seven kinds of bacteria were isolated from the respiratory organs of 86 pigs, and 34 (39.5%) of 86 pigs showed the complicated infection. In analyzing by the pigs infected with a single pathogen as P. multocida, A. pleuropneumonia, Staphylclcoccus spp. or Mycoplasma spp., the recovery rates were 0∼66.6% at 0.25 dose. 66.6∼100% at 0.5 dose and 100% in all of 4 pathogens at 1.0 to 2.0 doses. At 0.25 dosage the pigs infected with A. pleuropneumonia showed the lowest recovery rate. One hundreds and twenty two heads of pigs with diarrhea were divided into five groups and CFX at 0.25, 0.5, 1.0 ( = 2.5mg CFX/Kg B.W.) and 2.0 doses were administered i.m. for 5 days. The recovery rates were 29.1%, 40.0%, 80.0% and 88.0%, respectively. The mortality of the treated groups were 0-8.3%, being much lower than that of the control. Four kinds of bacteria were isolated from the fecal specimens of 94 pigs, and 84 (89.0%) of 94 pigs showed the complicated infection.
전태연,권용실,도규영,장계호 大韓神經精神醫學會 1997 신경정신의학 Vol.36 No.3
저자들은 1994년 1월 1일부터 1995년 6월 31일까지 가톨릭대학교 의과대학 의정부성모병원 정신과에 입원했던 환자들 중세서 공격행동을 보인 환자(공격군) 72명과 공격행동이 없었던 환자(비공격군) 215명의 임상적 특성에 관한 조사를 하여 다음과 같은 결과를 얻었다. 1) 공격행동을 보인 환자는 72명으로 전체 조사 환자의 25.1%이었다. 2) 성별, 연령, 종교, 결혼 상태와 정신과 질환의 가족력 등에 따른 공격행동의 발생비율의 차이는 유의하지 않았다. 3) 교육 정도와 직업에 따른 공격군의 비육에 유의한 차이가 있었다(p<.05). 4) 진단별로는 공격군에서 조증, 기질성 정신장애, 정신분열증의 빈도가 높았으나 진단에 따른 의미 있는 차이는 없었다. 5) 공격행동의 기왕력은 공격군에서 더 많았고 비공격군과 비교시 의미 있는 차이를 보였으며(p<.001), 입원 형태는 공격군에서 타의 입원의 빈도가 유의하게 높았다(p<.005). 7) 입원시 정신병리는 초조-흥분과 적대감-의심에서 공격군의 빈도가 높았으며 정신병리에 따른 의미 있는 차이를 보였다(p<.001). 8) 총 재원 일수는 공격군에서 평균 59.3일이었고 비공격군이 평균 38.4일로 유의한 차이를 보였다(p<.001). 9) 공격행동의 유형은 말로한 경우가 가장 많았고 물건을 대상으로한 행동, 타인을 대상으로 하는 행동의 순으로 나타났다. 10) 공격행동 직전 행동 특징은 활동증가, 시끄러움, 욕설, 분노, 적대적이었던 경우가 가장 많았다. 11) 공격행동은 정오에서 오후 6시 사이, 휴식시간에 가장 많이 나타났다. 12) 입원 후 1주일 이내에 공격행동의 62.3%가 나타났다. 13) 총공격 점수에 의미 있게 영향을 주었던 변인들로는 종교(p<.05), 교육 정도(p<.05), 직업(p<.05), 입원형태(p<.005), 진단(p<.001), 입원시 정신 병리(p<.001), 공격행동의 기왕력(p<.001) 등으로 나타났다. To evaluate the characteristics of violent behavior of psychiatric inpatients the authors reviewed clinical records of psychiatric patients who had admitted at UiJong Bu St. Mary's Hospital from January 1994 to June 1995. We divided the 287 subjects into violent and nonviolent group according to the presence of violent behaviors in psychiatric ward. We assessed demographic variables, clinical characteristics and violent behaviors using Overt Aggression Scale and compared these variables of violent group with nonviolent group. The results were as follows : 1) The number of violent patients was 72(25.1% of the total). 2) In terms of demographic variables, the differences between two groups in education and occupation were significant(p<.05). 3) In psychiatric diagnoses, violent group were more likely to have mania, schizophrenia and organic mental disorder in sequence but there were no differences between violent and nonviolent group. 4) The history of violent behavior was greater in violent group(p<.001) and the mode of admission was significantly different between two groups(p<.005). 5) In cluster of psychopathology on admission, more frequently found clusters of psychopathology in violent group were agitation-excitement and hostile- suspiciousness and there were significant differences between two groups(p<.001). 6) The length of stay in violent group(59.3 days)was significantly longer than nonviolent group(38.4 days)(p<.001). 7) The types of violent behavior were verbal aggression, physical aggression against objects and physical aggression against other people in frequency sequence. 8) The most frequent type of behavioral clue before violent behavior was hyperactive, loud, verbally abusive, angry, hostile(68.1%). 9) Most of violent behaviors were presented between midday and 6 pm. in resting time. 10) 62.3% of total violent behaviors were occurred within first week following admission. 11) The variables which showed significant effects on total aggression score were religion, educational status, occupation, mode of admission, psychiatric diagnosis, psychopathology on admission and history of violent behavior before admission. In summary, these results showed similar trends compared to previous studies on characteristics of psychiatric inpatients. And we found that more important predictors of violent behavior in practice were likely to be history of violent behavior, psychopathology on admission and behavioral cue before violent behavior.
강용태,원태준,한상윤,고영발,박경덕 東亞大學校 建設技術硏究所 2008 硏究論文集 Vol.32 No.1
The wastewater from textile industry typically containing high alkalify, salts, organic matter, and high color. Textile wastewater is usually treated by anaerobic-aerobic activated-sludge process. The activated-sludge process is effective the reduction of organic matter, but generally does not remove color. Ozone process is one of the most effective process in removal of color for the textile wastewater. Ozone has a strong oxidized dissolution of organism, deceleration, deodorization, fumigation, etc., regarding to water. This study focused on the color removal of textile wastewater. In this study, textile wastewater was treated strongly with ozone at 650mg/hr and the flow rate through ozone contact tank was adjusted to 5L/min. In an application Ozone treatment, Color was generally decreased with time, however, COD removal effect was not that good. In this study, the removal efficiencies of CODcr and Color were 23.5%, 80.4% respectively.
코아-셀 구조를 가지는 전도성 폴리피롤 나노섬유를 이용한 메탄올 센서 제작
전태선 ( Tae Sun Jun1 ),이성호 ( Sung Ho Lee ),김용신 ( Yong Shin Kim ) 한국센서학회 2014 센서학회지 Vol.23 No.6
Electrically conductive polypyrrole-polyvinylpyrrolidone (PPy-PVP) nanofiber mats with a core-shell structure have been successfully fabricated by a two-step process: the formation of FeCl3-containing PVP nanofiber mat by electrospinning, and the vapor-phase polymerization (VPP) of pyrrole monomer on the mat in a sealed chamber at room temperature. Surface morphology and chemical composition of the PPy-PVP mat were characterized by SEM, EDX and FTIR analyses. The as-prepared nonwoven mat was composed of PPy-PVP nanofibers with an average diameter of 300 nm. The sheet conductivity of the nanofiber mat was measured to be approximately 0.01 S/cm by a four-point probe. We have also investigated gas-sensing properties of PPy-PVP nanofiber mat upon exposure to methanol vapor. The PPy-PVP nanofiber sensors were observed to have excellent methanol-sensing performance. The nanofiberbased core-shell nanostructure could give an opportunity to fabricate a highly sensitive and fast response sensor due to its high surfaceto-volume ratio.
박용준,김태효,정원용 경남대학교 공업기술연구소 2000 硏究論文集 Vol.18 No.-
본 논문에서는 정지 영상의 전송과정에서 발생되는 손상된 영상을 효과적으로 복원하기 위하여 블록단위의 Edge Fitting Arithmetic(EFA) 알고리즘을 제안하였다. 본 알고리즘은 미리 계산된 이산적인 마스크를 전송된 영상의 3×3 블록에 적용시켜 방향성분을 계산하고, 이를 이용하여 에지에 대한 회전각, 거리 등의 정보를 계산한다. 영상의 복원 과정에서 각 3×3블록들은 5×5 블록으로 확장하고, 다시 원상태의 3×3 블록으로 축소시켜 복원한다. 실험결과, 본 알고리즘은 Lenna, Baboon 및 Camera Man의 시험 영상에 적용하여 복원한 영상의 PSNR이 양선형 보간법(bilinear interpolation method)을 적용한 결과에 비해 평균 0.6∼5dB 정도 향상된 화질을 얻을 수 있었다 In this paper, the EFA(edge fitting arithmetic) algorithm within per block unit is proposed to reconstruct from the damaged image occurred through still Image transmission. In this algorithm, the direction of edge components by the given 3×3 block which is previously calculated as discrete masks are detected from the transmitted image, then, from the edge components the rotated angle and the distance data are calculated sequentialy. In the procedure of image reconstruction, the 3×3 blocks are converted to 5×5 blocks for determination of the detailed edge and then the 5×5 b1ocks are reduced to the 3×3 blocks. The experimental results showed that the PSNR can be obtained 23.24dB, 19.06dB and 20.08dB from the test images of Lenna, Baboon and Camera Man respectively. This results improved the image quality of 0.6dB~5dB with respect to the bilinear interpolation method .