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김운해,김주식,유정웅 ( Woon Hae Kim,Ju Sik Kim,Jeong Woong Ryu ) 충북대학교 산업과학기술연구소 1994 산업과학기술연구 논문집 Vol.8 No.2
Abstract_Roman In order to estimate the optimal PID parameter of the tubine speed controller, the response curve of the object plaot was compared with the reference pattern and then the rnagnitude peak value error and peak time error was calculated. With
노현웅,김수생 동아대학교 환경문제연구소 1997 硏究報告 Vol.20 No.1
This survey was performed to measure the concentration of pollutants in discharging water from nightsoil treatment plants in ChungNam area. This study was carried out quarterly on a season, 1996. This summarized results were as follows ; 1. The measured concentration were BOD 1.4-160.0mg/l(average 21.7mg/l), SS 0.4-342.0mg/l(average 26.8mg/l), T-N 9.72-250.0mg/l(average 74.88mg/l), T-P 0.03-10.32mg/l(average 2.43mg/l) and E. Coli was unsuitable about 6.7%. 2. ADS (Aerobic Digestion System) and DES(Decompressed Evaporation System) + ADS is necessary to set the Suspended Solid removal equipment immediately. 3. LCS(Liquidphase Corrosion System) is necessary to set the Nitrogen removal equipment immediately.
김영웅,노현웅,박승조 동아대학교 환경문제연구소 1997 硏究報告 Vol.20 No.1
The objective of this study was to conduct jar-tests to remove residual aluminum ion and turbidity using three coagulants and three alginates as a coaglant aids. The conclusions were obtained from investigation of coagulant demand, zeta potential, residual aluminum ion concentration and turbidity under varying dosage of coagulants are as follows ; The potimum dosages for ALUM, PAC and PASS were 50, 35 and 30 mg/l respectively, at these dosages, residual aluminum ion concentrations were 0.07, 0.10 and 0.13 mg/l. When magnesium alginate(MA) dosage of 1.0 mg/l was applied after addition of optimum dosages of coagulants, ALUM, PAC and PASS removal efficiency of turbidities were 0.10, 0.13 and 0.13 NTU respectively. Adequate zeta-potential range for coagulation was from -20 mV to -10 mV with coagulant only.
갑상선 기능 저하증에 동반된 대퇴골두의 무혈성 괴사 1 예
정영호,김종숙,김광철,문현웅,서양관,박무영 대한내과학회 1995 대한내과학회지 Vol.49 No.3
There has been no report of avascular necrosis of femoral head with hypothyroidism. Avascular necrosis of femoral head develop secondary to femur neck fracture or traumatic dislocation of hip joint But the pathogenesis of idiopathic necrosis of femoral head is not clear as that seen in trauma, Several causes linked to avascular necrosis are as follows: administration of corticosteroid, Diahetes Mellitus, alcohol drinking, sickle cell disease, gout, connective tissue disease, coagulopathy, fat embolism, iron overolad, etc. Recently we experienced a 42-year old woman complained of left hip joint pain. Radiologic finding of left hip joint showed decreased mottled density on left femoral haad. we could not find any etiologic factors described above. Only T3 and T4 were decreased and TSH was increased markedly. We started thyroid hormone replacement. 1 month later after treatment, left hip joint pain was subcided. 6 months later, previous radiologic finding was normalized on follow up study. We can not conclude that hypothyroidism caused avascular necrosis of femoral had, but we infer that hypothyroidism might influence on femoral head lesion at least.
응급실로 내원한 골 노출이 없는 수지첨부 피부결손 환자에게 시행한 피부결손조각을 이용한 복합조직이식술과 드레싱의 치료결과 비교
김진우,신소미,유진현,노현웅,김윤준,곽동훈,이경훈,김형수,최익창,서민구 대한응급의학회 2023 대한응급의학회지 Vol.34 No.2
Objective: Patients presenting with fingertip skin defect injuries without exposed bone can avail of two treatment options at the emergency department (ED). This study compared outcomes between dressing and composite graft (CG) using skin stump for patients visiting the ED with fingertip skin defect injuries without exposed bone. Methods: This was a single-center, retrospective, observational study. We reviewed 244 patients with fingertip skin defect injuries without exposed bone who visited the ED from September 2018 to February 2021. We compared the outcomes of the patients who were treated by CG using skin stump and those who received a dressing in the ED. Results: In all, 142 patients were treated by CG using skin stump, and 102 patients were given a dressing only. In the CG group, good outcomes were obtained in 140 patients, whereas additional skin graft treatment was required for two patients with bad outcomes. In the dressing group, 81 patients had good outcomes and 21 patients had bad outcomes which required additional skin graft treatment. Conclusion: Results of our study revealed that compared to traditional dressing, ED treatment for fingertip skin defects without exposed bone showed good outcomes when administered CG using skin stump. Hence, we recommend that instead of simple dressing, CG using skin stump is the preferred mode of treatment for patients presenting in the ED with fingertip skin defect injuries without exposed bone.