서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1997)

김재홍,문득곤,김정수,김용준,임동진,박상훈,김희성,이민수,송기훈,김갑형,김형석,성소영,이인섭,김석우,황지환,조창근,김경문,부태성 대한화학요법학회 2000 대한화학요법학회지 Vol.18 No.3

Background : In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. Objective & Methods : For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results : In 1997. 99 strains of N. gonorrhoeae were isolated, among which 45(45.5%) were PPNG. Conclusion : The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 45.5% in 1997.

Stented Graft의 임상경험

권태원,김호성,김도균,성규보,조용필,김건언 대한혈관외과학회 2000 Vascular Specialist International Vol.16 No.2

Purpose: Endovascular repair is a alternative treatment with favorable short-term result, but long term results are not available compared to standard operation. The authors have reviewed experiences of Asan Medical Center on stented graft, performed from Aug. 1998 to Feb. 2000, and the results as to age, operative indication, clinical condition, anatomic location, complication, follow-up are reported. Method: Seven patients who has received stented graft between Aug. 1998 and Feb. 2000 are reviewed retrospectively. Result: Of the seven patients, 6 were male and 1 was female. The mean age was 46.4 years (17~71). Indication for stented graft were two pseudoaneurysms, two iatrogenic arterio-venous fistulas, one thoracic aorta aneurysm, one abdominal aortic aneurysm, and one iliac artery occlusion with blue toe syndrome. Three different types of stented graft devices were utilized: Dacron-covered nitinol stented graft (made by the Asan Medical Center medical device team), Vanguard II (by Boston Scientific Corp.), and PTFE with nitinol stented graft (by Tae-woong). There was no perioperative mortality, and the technical success was achieved in five cases (71%). The patency at 14-month were 1009o (5/5). Two immediate complications are hemorrhage due to iliac & femoral artery avulsion requiring emergency bypass grafting, and deployment failure of stented graft requiring removal of retained graft device. Conclusion: Stented graft may be utilized even in complicated vascular situation but will need further development of device and more experience to prevent possible catastrophic complication. Indication should be decided by team approach and vascular surgeon should be prevent or participate during the procedure.

精密測定 計器用 Stainless Steel의 諸性質에 미치는 熱處理의 影響

金善泰,安幸根,韓泰鍾 Natural Science Research Institute JEONJU UNIVERSI 1987 전주대학교 자연과학연구소 학술논문집 Vol.2 No.2

The changes of microstructure and hardness with the various heat treatments on the properties of Fe-13.36% Cr-0.37%C stainless steel for precision measuring gauge have been investigated. Type 420 stainless steel has the self-hardenability, because the nose of isothermal transformation diagram located greatly to the right. The highest hradness in the martensite martrix with undissolved carbide is obtained by oil and air cooling treatment after austenizing at 1000-1050℃, for 1/6-1/3hr. In case of low temperature tempering, internal stress is reduced without dissolution of martensite matrix, and hardness reduced slightly. In case of high temperature tempering, hardness is reduced greatly, because the martensite matrix is dissolved into a ferrite and carbide.

수영만에서 서식하는 해조류의 중금속 함량조사

김정선,차미선,박근태,이상준 부산대학교 환경문제연구소 1999 環境硏究報 Vol.17 No.1

GIS를 이용한 관광자원관리시스템 구축 및 활용에 관한 연구

김태근,조영환 목포대학교 연안환경연구소 2000 沿岸環境硏究 Vol.17 No.1

Recently tourism is put on the important role in central and local government affairs. But there is no effective Tourism Resources Management System in existing tourism. At this point of view, the first priority must be put to make inventory system(DBMS) of tourism resources and the next thing is how to handle this Inventory system for satisfying tourists and managers who work in the field of tourism The most significant problem of existing tourism system is not to have proper interrelationship of location data and its resources data of tourism, so the tourists are not easy to make their sense for planning tour program. Needless to say, it is more serious problem to managers. This study was focused on the application of GIS(Geographic Information System) for establishment for efficient Tourism Resources Management System. GIS application showed good performance in handling inventory data for decision making. All the data used for the GIS application was divided into location and non-spatial data. Using location data. it was easy to find the exact location for tour on the monitor and on the maps generated by the computer, even in the actual managed site, along with various attribute data. It was easy to store, manage and update the data and to keep the data which could be washed away by the time. By manipulating the menu driving system, it was also very easy to access the Tourism Information System for users including new managers as well as tourists.

토양에서 분리한 Toluene 분해 세균의 동정 및 일부 특성

김종구,박근태,이건,이상준,손홍주 부산대학교 환경문제연구소 1998 環境硏究報 Vol.16 No.-

경상남도 양산천 일대의 토양시료로 부터 toluene을 유일한 탄소원 및 에너지원으로 생육하는 미생물들을 분리하였고, 그 중 toluene의 분해능이 가장 우수한 균주를 선별하여 공시균으로 선택하였다. 공시균의 형태학적, 배양적, 생화학적 및 화학분류학적 제반 특성들을 토대로 분류학적 위치를 검토한 결과 Rhodococcus 속으로 동정되어 편의상 Rhodococcus sp. EL-43P로 명명하였다. Rhodococcus sp. EL-43P는 phenol 및 다양한 phenol 유도체, benzene 등의 방향족화합물 기질에서 생육할 수 있었다. 특히 phenol 분해에 관련된 각종 환경조건을 최적화시키면 실제의 phenol 함유 폐수처리공정에서 충분히 적용가능성이 있음을 알 수 있었다. Rhodococcus sp. EL-43P는 catechol 1,2-dioxygenase의 활성을 가지고 있어 ortho pathway에 의하여 phenol을 분해함을 알 수 있었다. 또한 본 공시균은 toluene dioxygenase의 활성도 가지고 있었다. The microorganisms which degrade toluene as the sole and energy source were isolated from soil around Yangsan river. Among them, the strain EL-43P had the highest toluene degradability and identified as a Rhodococcus sp. according to morphological, cultural, biochemical and chemotaxonomical properties. Rhodococcus sp. EL-43P was able to grow at the various chlorinated phenols such as o-, p-chlorophenol, 2,3-,2,5-, 2,6- and 3,4-dichlorophenol, and benzene, respectively. If detailed phenol degradation conditions are established, the treatment of phenol wastewater using Rhodococcus sp. EL-43P would be possible. Rhodococcus sp. EL-43P had the catechol 1,2-dioxygenase which degrades Phenol derivatives by ortho pathway. This strain also had toluene dioxygenase.

메니에르병으로 오인된 미로내 신경초종

김규성,장근욱,양태용,김태연 대한평형의학회 2003 Research in Vestibular Science Vol.2 No.2

인산 칼슘을 사용한 수산화아파타이트 시멘트의 응결·경화 특성에 관한 연구

김한엽,박찬근,송태웅 경남대학교 신소재연구소 1996 論文集 Vol.6 No.-

습식법이나 수열법으로 합성한 hydroxyapatite(HAp)의 분말을 성형, 열처리한 소결체는 지금까지 알려진 바이오 세라믹스 중 생체친화성이 가장 우수한 것으로 입증되고 있으나 소결에 따르는 제조상의 몇가지 문제점을 안고 있다. 본 연구에서는 소결에 의하지 않고 tetracalcium phosphate(TTCP)분말과 dicalcium phosphate dihydrate(DCPD) 분말의 혼합물로 만든 paste를 용해·침전반응으로 응결·경화시켜 직접 HAp 경화체를 얻고, 이때 몇가지 변수가 HAp의 생성과 응결 및 경화특성에 미치는 영향을 검토하였다. TTCP와 DCPD로 조합한 시멘트의 수화반응생성물은 HAp 경화체였으며 이의 미소결정의 interlocking에 의해 응결·경화 하였다. 반응온도 및 HAp 종자의 첨가는 주로 초기단계의 반응속도에 영향을 주었다. 50℃에서의 HAp 생성 반응은 24시간 이내에 거의 완료되었다. Hydroxyapatite ceramics, one of the excellent biocompatible materials, are usually prepared by sintering of hydroxyapatite powders from wet chemical methods. But some problems caused by sintering process are still remained. In this study, instead of powder sintering methods. hardened bodies of hydroxyapatite were prepared by self-hardening reaction of cement paste composed of powdered tetracalcium phosphate(TTCP) and dicalcium phosphate dihydrate(DCPD). Some effects of seeding, reaction temperature on setting and hardening properties were investigated . The hydration products of the hardened paste were composed of finely-crystallized hydroxyapatite which causes setting and hardening by interlocking themselves. Self setting and hardening reaction are accelerated by elevating reaction temperature and addition of hydroxyapatite powders as a seeding materials. The hydration reaction of the paste. at 50C. was nearly finished within 24 hours after mixing with water.

측두하악 관절의 재건을 위한 늑연골 이식의 효과

김태규,정기돈,신상훈,김성길,이성근,박상준,서종천 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.3

We performed costochondral grafting in mmandibular reconstruction including condyle replacement in 5 patients which have 4 cases of ameloblastoma, 1 case of resorption of left condyle due to osteomyelitis. We harvested the 6 th costochondral cartilage of unaffected side. No specific complications were appeared with unexpected fracture of costochondral junction and infection of operation site, These patients show 30-45mm at month opening, near normal of affected side, near normal or normal of unaffected side at lateral excursion. Postoperative coureses was uneventful with improved cosmetic and functional results. Our report is indicated that the costochondral graft is satisfactory to reconstruct mandibular defect including condyle replacement, especially in growing patients.

웹페이지 체류시간을 활용한 성향분석 시스템의 설계 및 구현

김창근,탁한호,송태섭 진주산업대학교 농업기술연구소 2007 農業技術硏究所報 Vol.20 No.-

If web users visit highly attractive pages during the navigation pattern, they spend more time over viewing and visiting the pages. This can be important information for electric commerce as well as for website owners to analyze what web sufferer’s tastes are. This paper is designated to find out sufferer’s precise taste by estimating how much time sufferers’ spent in certain sites that they have visited.