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RISS 인기검색어
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- 저자 : 김성배(Song Bae Kim) (검색결과 120 건)
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김성배(Sung Bae Kim),김상희(Sang Hee Kim),김상위(Sang We Kim),서철원(Cheol Won Suh),이규형(Kyoo Hyung Lee),이정신(Jung Shin Lee),김해련(Hae Ryun Kim),민영일(Young Il Min),송호영(Ho Young Song),최은경(Eun Kyung Choi),이재원(Jae Won Le 대한내과학회 1995 대한내과학회지 Vol.48 No.5
Objectives: Patients with esophageal cancer and a malignant tracheoesophageal fistula(TEF)have an extremely poor prognosis, with or without treatment. However, the presence of a TEF has historically been considered a relative contraindication to radiation therapy. Methods: To determine the appropriate treatmement(use of radiation therapy)for patients with esophageal cancer and malignant TEF, a review was performed of all such cases, obeserved at Asan Medical Center between 1989 and 1993. Results: 1) Six patients with malignant TEF were seen in total 130 esophageal cancer patients, so the incidence was 4.6%. 2) All of the patients were male, had squamous cell histologies. 3) Dysphagia as initial presenting symptom was a chief complaint in all six patients. 4) The number of TEF formation was one in five of six patients, two in the rest. 5) Three TEFs were developed during radiotherapy, two of them stopped radiation therapy, and one patient continued to treat with hyperfractionated radiation and cured. 6) The median survival length was 33(3-60) weeks after initial tumor diagnosis and 16(2-39) weeks after the first TEF occurred. The duration between initial tumor diagnosis and TEF formation was 17.6(0.6-22) weeks. 7) As a pllliative aim, gastrostomy was done in two patients, jejunostomy in one patient, and stent insertion in the other two patients. Associated symptoms with TEF were markedly improved after stent insertion. 8) The cause of death was sepsis as a resulf of aspiration pnenumonia and lung abscess in five of six patients, and advanced esophageal cancer with lung metastasis in the rest. Conclusion: Early detection and proper management were essential in malignant TEF and esophageal cancer. Stent insertion was good palliation. Radiation therapy might be initiated or continued in the presence of a TEF, and eventual resolution of the fistula might occur. Prospective randomized trials are necessary to define the role of radiation treatment, and further attempts to improve the malignt TEF are required.
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무기계 천연광물을 혼입한 콘크리트의 공학적 특성에 관한 연구
김성배 ( Sung-bae Kim ),송하원 ( Ha-won Song ),박선규 ( Sun-gyu Park ),박라혁 ( La-hyuk Park ) 한국건축시공학회 2005 한국건축시공학회 학술발표대회 논문집 Vol.5 No.1
Due to increased demands for durable and high-performance concrete structures, the use of admixtures has become essential. In this paper, material properties, and durability of concrete mixed with natural inorganic minerals(R-1) are obtained from test results. Through the comparisons with OPC(Ordinary Portland Cement)concrete, the R-1 concrete shows improved compressive strength and durability.
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묽은 염산을 사용한 Micrkocrystalline Chitin 의 제조
김성배(Sung Bae Kim),송주영(Ju Yeong Song) 한국키틴키토산학회 1997 한국키틴키토산학회지 Vol.2 No.4
Chitin has been limited for commercial uses due to its high resistance to chemicals. One of methods to reduce such high resistance to chemicals is to make microcrystalline chitin (MCC) by hydrolysis of chitin. Presently, MCC is produced by using mainly high concentration of acid, but this treatment requires extensive post-treatment to remove or recover acid. An alternative process for MCC production was developed by using dilute hydrochloric acid with ultrasound and hydrogen peroxide. The major parameters for this process were found to be acid concentration, swelling time and temperature, and irradiation time and frequency of ultrasound. The effects of these parameters on MCC molecular weight were investigated. The molecular weight of MCC produced at a typical condition was around 30,000 which was approximately 1/8 of that of chitin. SEM analysis showed that both chitin and MCC had the fibrous shaped morphologies and the fibril size of MCC was much smaller than that of chitin.
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김현정 ( Kim Hyon-chong ),박성직 ( Park Seong-jik ),이창구 ( Lee Chang-gu ),한용운 ( Han Yong-un ),김성배 ( Kim Song-bae ) 한국농공학회 2008 한국농공학회 학술대회초록집 Vol.2008 No.-
In this study, attachment of bacteria in granular activated carbon (GAC) was investigated using column experiments. Bacterial species used in the study was Enterococcus faecalis ATCC 10100. The experiments were performed with coconut-based GAC and iron-impregnated GAC under two different ionic strength conditions. In coconut-based GAC, about 77.3% of bacteria was attached in 1 mM while in 10 mM about 61.6% was attached. In iron-impregnated GAC, about 62.6% was attached in 1 mM ionic strength while about 53.3% was attached in 10 mM. Results showed that ionic strength and iron-impregnation could enhance the bacterial attachment in GAC.
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