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골프장의 잔디 토양에서 살균제 Tolclofosmethyl의 분해
정근욱,우선희,김흥태,사동민,김영기,홍순달,김재정,이재구 한국환경농학회 2004 한국환경농학회지 Vol.23 No.3
Tolclofosmethyl (TCFM) is heavily and annually applied to the turf soils of most golf courses in Gyeongju to control the fungi known to cause the disease brown patch. The soil samples used for the experiment was collected three weeks after the annual application at the end of May in the year 2002. The preliminary results obtained from this study demonstrated that the repeated field annual applications of TCFM to the turf soils of a golf course located in Gyeongju city in the southern area of Korea showed the enhanced degradation of the parent compound TCFM, especially in the surface (0~15 cm) soil rather than the shallow subsurface (15~30 cm) and deep subsurface (30~45 cm) soils, compared to the corresponding surface (0~15 cm) and shallow and deep subsurface (15~30 cm and 30~45 cm) soils of the untreated plot. It appears that microorganisms in the soil may be involved in the enhanced degradation of TCFM.
全泰玉,朴興植,鄭明眞,金晶坤 동아대학교 공과대학 부설 한국자원개발연구소 1988 硏究報告 Vol.12 No.2
This paper has been carried out ot clarify the behavior of the BUE experimented Aluminium with using tungsten caribide tools. The results obtained are as follow : There was the block that varied suddenly at the initial cutting force. From the point of cutting distance 150㎜ Happened the BUE and the cutting force was the normal state. As share angle is increased, compression coefficient of the chip are increased. Relation between the friction coefficient of chip side and tool rake side can make the modelization studying the BUE size. As cutting speed is increased, chip thickness is decreased.
화상 환자에서 발생한 외과적 중재술을 요하는 감염성 심내막염 2예
김근숙,이태유,정연손,최창순,최민호,류제헌,김철홍,조구영,우흥정 대한감염학회 2003 감염과 화학요법 Vol.35 No.3
감염성 심내막염은 화상 후에 발생할 수 있는 치명적인 합병증이다. 임상 증상은 일반적으로 없는 경우가 대부분이고 지속되는 발열과 양성 혈액 배양 검사가 유일하다. 감염의 다른 확실한 원인 없이 발열과 양성 혈액 배양 검사가 있을 때는 감염성 심내막염을 강력하게 의심해야 하며 심장 초음파로 진단 가능하다. 감염성 심내막염은 사망률은 높지만 초기에 진단하면 항생제 정주를 지속하는 것으로 치료할 수 있다. 저자들은 화상환자에서 발생한 수술적 처치를 필요로 하는 감염성 심내막염 2예를 경험하였기에 보고하는 바이다. Infective endocarditis is a rare but fatal complication following burn injury. The clinical presentation is silent, but with persistent fever and positive blood culture. The manipulation of clinical care as well as the burn wound itself and immunosuppression caused by extensive bums puts the burn patients at risk of bacteremia. Staphylococcus aureus and Gram-negative bacilli are most common pathogens of infective endocarditis following burns. We report herein two cases of infective endocarditis in the burn patients who requires surgical intervention. The first case was caused by Pseudomonas aeruginosa with complication of multifocal pneumonia, and the second case by coagulase-negative stapylococcus with cerebral hemorrhage.
서영백,이충엽,박흥식,전태옥 동아대학교 공과대학부설 생산기술연구소 1998 生産技術硏究所硏究論文集 Vol.3 No.2
This paper was undertaken to do tribology characteristics on oiliness agent adn extreme pressure agent. The lubricating wear test was performed under different experimental conditions using the wear test device was made in our laboratory and wear specimens of the pin on disk type was rubbed on paraffine series base oil by materials, varying applied load, sliding distance, oil additives such as stearine acid, DBDS, TCP, DBDS and TCP have a role of extreme pressure agent but a role of absorbed film of stearic acid decrease in high load. As applied load increase, in no additive lubricating oil, friction coefficient of three test piece is decreased by decrease in oil film thickness and viscous damping. But friction coefficient in STS304 has bigger value than SM45C and STB2 for work hardening in austenite.
三槽式便所를 設置한 濟州道內 一部落民의 寄生蟲感染率 推移
蘇鎭琸,李根泰,鄭坪林,李在興,李定熙,金英漢,洪淳億 최신의학사 1968 最新醫學 Vol.11 No.8
Three compartment stool tank system was established in March, 1965 to each of the houses . of Yongheungri, Cheju-do. The trend of parasites prevalence, faithfulness of the people to paractice the system and effectiveness of the system for destruction of ascaris eggs were examined. 1. Only 22 houses among 65 utilized the system for 3 years. The remained 43, gave up to practice; 10 because of the destruction of the cemented tank and 33 due to the shortage of. food stuffs, for hogs. In this island, the people have been raised hogs with human excrets. 2. The prevalence of ascaris infection in the village and in Sinwom-ri, a control village where the human feces were used as food stuffs for hog, were as follows: Yongheung(%) Sinwom(%) March 1965 before medication 52.0 43.0 Dec. 1965 after medication 15.1 21.2 Feb. 1968 22.7 30.8 3. Ascaris eggs in the 3rd compartment, were destroyed 94-100%, whereas the eggs in semi-formed feces in hog sty survived 94%.
김종운,김수관,김수흥,정태영 대한악안면성형재건외과학회 2001 Maxillofacial Plastic Reconstructive Surgery Vol.23 No.3
We report a case in which a right mandibular incisor was impacted beneath an odontoma in the anterior mandible. An odontoma at the symphyseal region was removed under general anesthesia, and bone was grafted. Tooth #41, which was beneath the lesion, was extracted and transplanted to its original site. It was splinted with resin for 2 weeks and was checked at intervals during that time. After 4 months, it was filled endodontically with calcium hydroxide.
김소영,김수관,이상호,김수응,정태영,안태훈 대한악안면성형재건외과학회 2001 Maxillofacial Plastic Reconstructive Surgery Vol.23 No.5
Anterior segmental osteotomy were performed in 8 patients with Angle's II malocclusion or anterior maxillary protrusion. Cupar's method was used for operation. The period of follow up for patients were 15months by average. This study discussed the postoperative complications and soft tissue change after anterior segmental maxillary osteotomy. There are not specific major complications.
최의환,하정완,김수관,정태영,김수흥 대한악안면성형재건외과학회 2001 Maxillofacial Plastic Reconstructive Surgery Vol.23 No.3
Modified surgical technique for transposition of the inferior alveolar nerve followed by immediate placement of endosseous implants in mandibles with moderate to severe atrophy are presented. Five transpositions of the inferior alveolar nerve together with the installation of 10 implants were performed in four patients. The mean postoperative follow-up time was 17 months, with a range of 8 to 20 months. All implants with functioning pontics remained stable, with no mobility or symptoms of pain and infection during the follow-up period. Neurosensory evaluation was performed using the two-point discrimination test. Two patients had objective neurosensory dysfunction at postoperative, but all the nerve function were reported as normal by the patients 4 months postoperatively.