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단층활동시 매설 파이프라인의 거동에 대한 직접진단 시험모델 수치해석
장신남 한국농공학회 1999 韓國農工學會誌 : 전원과 자원 Vol.41 No.6
The frequency of earthquake occurrence tends to increase in Korea. Therefore, the stability of pipeline, such as watersupply pipe, gas pipe, and oil pipe etc. across fault zones in Gyoung-sang landmass is very important, expecially , in metropolitan area. There were some examples of the construction of buried pipeline across fault zones in Korea. the interactiion between the buried pipeline across fault zones and the ground is considered. As well, in the interfaces of them, the direct shear numerical analysis model including elasto-plastic joint element is assumed that the retained dilatancy theory in them, otherwise. Also, the other elements are modeled the ground is nonlinear elastic coutinuaus beam, respectively. In this study, the maximum shear force point exist inside retaine zone(anchored zone) during shwar (as fault sliding), and the distribution of pipeline's behavior is all alike them of pipeline buried in ladnsliding grounds. Since the pipeline is not continuous beam but jointed by steel-pipe segments , practically, on acting of a large bending moment or a shear force, then, those are may be unstable. The reaearch on this point may be new approach.
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구강 편평상피세포암 환자에서 치료전 혈청 CEA와 SCCA의 측정
장신남,김상규,김진수,변기정 大韓顎顔面成形再建外科學會 2003 Maxillofacial Plastic Reconstructive Surgery Vol.25 No.3
본 연구에서는 구강 편평상피세포암에서의 종양표지자의유용성을 평가하기위해 21명의 구강 편평상퍼세포암 환자들과 대조군인 22명의 양성질환자들에서 방사면역검사를 통해 치료전 혈청 CEA와 SCCA를 측정한 결과 다음과 같은 결론을 얻었다. 1. 양성질환자들의 혈청 CEA 평균치는 2.25±1.39ng/ml (최소 0.4 ng/ml), 최대 5.6 ng/ml)인 반면, 구강 편평상피세포암 환자들에서는 2.77±2.03 ng/ml (최소 0.3 ng/ml, 최대 6.7 ng/ml)로 두 군 사이에 통계적으로 유의한 차이를 나타내지 않았다(P= 0.3380) 2. 구강 편평상피세포암 환자들의 혈청 CEA의 양성률은 19.05%로 대조군인 양성질환자들의 양성률 4.55%와 통계적으로 유의한 차이를 보이지 않았다(P= 0.1853). 3. 양성질환자들의 혈청 SCCA 평균치는 1.21±1.74 ng/ml (최소 0.1 ng/ml, 최대 6.9 ng/ml)인 반면, 구강 편평상피세포암 환자들에서는 2.11±1.78 ng/ml (최소 0.1 ng/ml, 최대 6.1 ng/ml)로 두 군 사이에 통계적으로 유의한 차이를 나타내지 않았다(P= 0.1011) 4. 구강 편평상피세포암 환자들의 혈청 SCCA의 양성률은 47.62%로 대조군인 양성질환자들의 양성률 13.64%와 통계적으로 유의 한 차이를 나타내었다(P= 0.0153). 5. CEA와 SCCA 둘 중 하나라도 양성인 경우를 포함하는 조합 검사에서 민감도는 52.38%로 CEA의 민감도19.05% 보다는 크게 증가하였으나 SCCA의 민감도47.62%와 비교해서는 약간의 증가를 나타내었고, 특이도는 감소하였다 The study evaluated the usefulness of tumor markers in the diagnosis of oral sequamous cell carcinoma. Serum levels of two tumor markers(carcinoembryonic antigen〔CEA〕and squamous cell carcinoma antigen〔SCCA〕)were simultaneously measured by radiommunoassay in 21 patients with oral sequamous cell carcinoma and in 22 patients with oral benign diseases. The positive rates were 19.05% for CEA and 47.62% for SCCA in patients with oral sequamous cell carcinoma. The sensitivity of the combination assay(52.38%) was higher than that obstained with individual markers, but specificity was low in combination assay. Serum CEA seema to be inadequate for diagnostic purpose, but serum SCCA may be useful for diagnostic purpose in patients with oral sequamous cell carcinoma. A combination assay may be useful in the diagnosis of oral sequamous cell carcinoma.
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Parapharyngeal Space에 발생한 Pleomorphic Adenoma의 치험례
장신남,백민주,김진수,변기정 大韓顎顔面成形再建外科學會 2003 Maxillofacial Plastic Reconstructive Surgery Vol.25 No.2
본 교실에서는 발생이 드문 부인두간극에 발생한 다형성 선종을 악하절개와 하악지 부위의 하악골 절단을 행한 이후에 둔적박리(blunt dissection)를 이용하여 종물과 주위의 구조물을 외과적으로 절제하였으며, 3년간의 추적 조사 결과 재발의 양상 없이 양호한 결과를 얻었기에 문헌고찰과 함께 보고하는 바이다. Pleomorphic adenoma is the most common of the benign salivary gland tumors. Pleomorphic adenoma accounts for 60% of all parotid gland tumors, 50% of submandibular gland tumors. and only 25% of sublingual gland neoplasms. Fifty percent of all oral minor gland tumors are pleomorphic adenomas of which 55% arise in the palate, 25% in the lip, 10% in the buccal mucosa, and 10% from all other oral and oropharyhgeal sites. The presence of tumors within the parapharyhgeal space is rare. Some investigators have reported pleomorphic adenomas originating in the deep lobe of the parotid gland advancing to involve this region, as well as primary pleomorphic adenomas of nonparotid origin. We present a case report of pleomorphic adenomas in the parapharyhgeal space with literature review. The tumor was completely removed under general anesthesia via submandibular incision with the division of mandible.
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단층활동시 매설 파이프라인의 거동에 대한 직접전단 시험모델 수치해석
장신남 ( Jang Shin Nam ) 한국농공학회 1999 韓國農工學會誌 : 전원과 자원 Vol.41 No.6
The frequency of earthquake occurrence tends to increase in Korea. Therefore, the stability of pipeline, such as watersupply pipe, gas pipe, and oil pipe etc., across fault zones in Gyoung-sang landmass is very important, especially, in metropolitan area. There were some examples of the construction of buried pipeline across fault zones in Korea. The interaction between the buried pipeline across fault zones and the ground is considered. As well, in the interfaces of them, the direct shear numerical analysis model including elasto-plastic joint element is assumed that the retained dilatancy theory in them, otherwise, Also, the other elements are modeled the ground is nonlinear elastic coutinuaus beam, respectively. In this study, the maximum shear force point exist inside retained zone(anchored zone)during shear(as fault sliding), and the distribution of pipeline's behavior is all alike them of pipeline buried in landsliding grounds. Since the pipeline is not continuous beam but jointed by steel-pipe segments, practically, on acting of a large bending moment or a shear force. then, those are may be unstable, The research on this point may be new approach.
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