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柳知衡 慶一大學校 1999 論文集 Vol.16 No.2
Many structures are constructed on and/or under soil. The stability of structures is based on the behavior of foundation soils caused by applied loads. It is very important to determine exactly the geotechnical properties of foundation soils for the rational design or the analysis of soil foundation. But in case of small or minor project, it is more economical and practical to estimate the required geotechnical property from other properties. The relationship of geotechnical properties are often needed. For this study, the geotechnical properties are collected from geotechnical investigation data of various construction projects in Kyungpook province, Korea. From the regression analysis of collected geotechnical properties, it is proven to have high correlation between properties for sandy soil and cohesive soil respectively. It is also suggested correlation equations between properties for sandy soil and cohesive soil.
분절성 괴사성 공장염(Segmental necrotizing jejunitis) 1례
유지형,김효신,김제우,정기섭,한석주,김호근,Yoo, Jee-Hyung,Kim, Hyo-Shin,Kim, Je-Woo,Chung, Ki-Sup,Han, Suk-Joo,Kim, Ho-Kun 대한소아소화기영양학회 1999 Pediatric gastroenterology, hepatology & nutrition Vol.2 No.2
Segmental necrotizing jejunitis is characterized by severe abdominal pain of acute onset, bilious vomitings and foul smelling loose stools containing blood. Pathologic features include circumferential intestinal wall inflammation ranging from edema with minimal congestion to severe congestion, hemorrhage with necrosis, ulceration, and gangrene with perforation. Early diagnosis and suitable supportive measures prevent unnecessary laparatomy and complications. There was no report of this disease entity in children in Korea. We experienced a case of segmental necrotizing jejunitis with fever, abdominal pain and bloody stools, which was diagnosed by exploration and was treated successfully by antibiotics and supportive measures. 분절성괴사성공장염은 소아에서 주로 발생되는 드문 질환으로서 복통, 구토 및 혈변을 일으키고, 공장에 괴사성병변을 일키는 것을 특징으로 하며, 금식과 적절한 항생제투여로 대부분 치료가 가능하지만 심한 경우에는 수술적 절제술이 필요하다. 저자들은 1년 11개월된 여아로 내원 1주일 전부터의 발열, 복통, 구토와 혈변을 주소로 입원하여 치료하던 중 병세가 호전되지 않아 시험개복술과 함께 장간막임파선생검을 시행한 결과 분절성괴사성 공장염으로 확진된 환아 1례를 치험하였기에 보고하는 바이다.
유지형 경일대학교 산업기술연구소 1994 産業技術硏究所 論文集 Vol.4 No.-
Model tests are conducted to evaluate the effectiveness of the passive isolation barrier in reducing the amplitude of vertical and horizontal ground motion. Straight barrier with styrofoam is used at 0.8m distance from the source. The barrier is 0.8m long, 0.5m deep, and 5cm in width. The model sand box is about 3.0m×3.0m dimension and 1.5m deep and is constructed with an absorbing perimeter and bottom of styrofoam to minimize reflection of wave energy. The compressive and shear wave velocities of sands are determined from the criss-hole test performed on the surface. And the spectral analysis of surface wave (SASW) tests are performed to estimate the elastic properties of sands from the dispersion curve of Rayleigh waves. From the analysis of passive isolation tests, it is found that magnification of vertical and horizontal motion are both occurred in front of barrier. It is also found that amplitude reductions are 63% in vertical and 59% in hoizontal motion just behind barries, and 36% in vertical and 59% in horizontal motion at 1.1m distance from the source.
유지형,손승환,백경훈,이정주,김장환,박종관,류기성,전종관,조용균,정재용,김상현 대한의학회 2009 Journal of Korean medical science Vol.24 No.-
For the evaluation of the kidney impairment, serum creatinine concentrations or glomerular filtration rates are mainly used, and the conditions of solitary or transplanted kidney and chronic dialysis are also taken into the considerations. Some symptoms and signs of the chronic renal disability in spite of adequate treatment add one additional grade. For evaluating bladder and urethral impairment, the criteria include voiding symptoms and signs. The patients with urinary diversions have impairment grades depending on the alteration of upper urinary tract function. For penile impairment, the degrees are evaluated using the international index of erectile function, nocturnal penile tumescence and color doppler ultrasonography. For evaluating impairment of other male reproductive organs, functional and anatomical changes of these organs, analysis of the semen or hormones and the state of solitary testis are used as the criteria. For evaluating impairment of female reproductive organs, pregnancy potential, requirement of continuous treatment and the ability of sexual intercourse are used. Also, degree of impairment is modified according to the ages in evaluating female reproductive systems. We have tried to make this evaluation system objective, scientific, and convenient, but still find it leaving much to be desired.