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조영연(Cho, Young-Youn),이강훈(Lee, Kang-Hoon) 한국실내디자인학회 2009 한국실내디자인학회논문집 Vol.18 No.6
Cheoungju International Craft Biennale is not just an art exhibition but more like a pubic festival which is including an experiential learning and a public participation section as well as a special exhibition and an international competition section. Thus it is strongly required to present an appropriate meaning and mood corresponding to each exhibition hall. The paper has examined the exhibition topics during the last 10 years and the plannings and contents to install the exhibition hall according the yearly topic and it has analyzed the comprehensive evaluations after the exhibition. The research scope is limited to the part related to the exhibition hall and facilities, which is including calculation of dimensions and layout, access and movement system, the appropriateness of the design and construction period, measure of applied technology appropriateness, post management as well as planning intent, estimation of the number of the visitors, preliminaries. With the results shown in the comprehensive evaluation and analysis, the paper has presented two issues, the one related to the procensure and preparation and the other related to the facilities. It is showed that both problems are due to the lack of expertise and it is necessary for the experts to participate from the first step of the procedure including planning for the successful exhibition. For the appropriate exhibition hall corresponding to the exhibition planning and scale, it is required to have the professional considerations of successful space and visitor"s movement management, display environment, construction method, and post management. The study presents that architectural and interior design have to take an active part in constructing exhibition design in overall stage including the initial, practice, and evaluation stage
증례 : 순환기 ; 만성 대퇴동정맥루 교정술 후 발생한 폐색전증
이하연 ( Ha Youn Lee ),최상일 ( Sang Il Choi ),임청 ( Cheong Lim ),채인호 ( In Ho Chae ),최동주 ( Dong Ju Choi ),조영석 ( Young Seok Cho ) 대한내과학회 2015 대한내과학회지 Vol.88 No.4
Rarely, an arteriovenous fistula (AVF) can follow a femoral arterial puncture for cardiovascular catheterization. Surgical repair has been suggested as the standard treatment. We report a 66-year-old woman with a pulmonary thromboembolism as a complication of surgical repair of a chronic femoral AVF. We believe that the repair of the AVF led to a sudden decrease in venous blood flow, leading to thrombus formation at the site of damaged endothelium. Therefore, doctors should consider all possible complications that can arise from a sudden change in blood flow as a result of repairing a chronic AVF.
췌장염에서 발생한 가성동맥류의 임상 양상: 단일기관 경험 및 국내문헌 고찰
김지현 ( Ji Hyun Kim ),김재선 ( Jae Seon Kim ),김창덕 ( Chang Duck Kim ),이홍식 ( Hong Sik Lee ),조영직 ( Young Jig Cho ),이종섭 ( Jong Sup Lee ),최도원 ( Do Won Choi ),한우식 ( Woo Sik Han ),김연호 ( Youn Ho Kim ),연종은 ( Jong E 대한소화기학회 2007 대한소화기학회지 Vol.50 No.2
서론: 만성 또는 급성 췌장염의 합병증으로 발생하는 가성동맥류는 복강이나 후복막 또는 위장관 출혈을 일으켜 치명적인 결과를 초래할 수 있다. 저자들은 췌장염의 합병증으로 발생한 가성동맥류의 임상 특징을 알아보고자 이 연구를 시행하였다. 대상 및 방법: 1995년 1월부터 2006년 3월까지 고려대학교 구로병원과 안암병원에서 췌장염의 합병증으로 가성동맥류를 진단받은 7예를 대상으로 환자의 특성과 임상 경과를 후향 분석하였다. 결과: 성별은 모두 남자였고, 연령은 평균 54.6세(43-67세)였다. 모든 예에서 가성낭이 동반된 만성췌장염에서 가성동맥류가 발생하였고, 음주가 만성췌장염의 원인이었다. 진단 당시의 주 증상은 5예에서 심와부 통증, 1예는 혈변, 1예는 토혈이 복통과 동반되었다. 출혈 양상은 5예에서는 가성낭 내로의 출혈이었으며 1예는 가성낭 내로의 출혈과 동반된 하행결장 누공형성에 따른 출혈, 1예는 가성낭 내로의 출혈과 동반된 췌관 출혈이었다. 증상 발생 후부터 가성동맥류 진단까지의 평균 기간은 7.8일(1-23일)이었다. 6예의 복부 전산화단층촬영에서 가성낭 내의 국소적 조영증강의 특징적인 소견이 관찰되어 진단이 가능하였으며, 3예에서 복부 전산화단층촬영 전에 복부 도플러초음파 검사를 시행하였으며 이 중 2예에서는 가성동맥류를 시사하는 소견이 관찰되지 않았다. 6예에서 초기 치료로 혈관색전술이 시행되었고 모든 예에서 재발은 없었으며 혈관색전술과 관련된 중대한 합병증은 관찰되지 않았으나 1예에서는 합병증으로 비장경색이 발생하였다. 1예는 초기 치료로 원위췌장절제술을 시행하였다. 결론: 췌장염의 합병증으로 발생한 가성동맥류는 다양한 임상 양상을 보이며, 초기 치료로 동맥색전술을 이용한 비수술적인 방법이 효과적이다. Background/Aims: Pseudoaneurysm is a life-threatening complication of chronic or acute pancreatitis. This study was undertaken to evaluate the clinical features of pseudoaneurysm complicating pancreatitis. Methods: We reviewed the medical records of 7 patients diagnosed as pseudoaneurysms with chronic pancreatitis in Korea University Guro and Anam Hospital from January 1995 to March 2006 and analyzed their demographics, clinical courses and outcomes. Results: All patients were men and mean age was 54.6 years (range, 43-67 years). All the cases occurred in the setting of chronic alcoholic pancreatitis complicated by pseudocyst. Abdominal pain was the unique initial clinical symptom in 5 cases, hematemesis in 1 case, and simultaneous abdominal pain with hematemesis in 1 case. Bleeding into pseudocyst developed in 5 cases, flowing into duodenum through pancreatic duct in 1 case and rupture into the descending colon in 1 case. Mean duration between onset of symptom and diagnosis of pseudoaneurysm was 7.8 days (range, 1-23 days). Six cases were diagnosed by abdominal computed tomography disclosing characteristic finding of focal high density area in the pseudocyst. Pulsed doppler abdominal sonography was performed before computed tomography in 3 cases and results were negative in 2 cases. Transcatheter arterial embolizations were initially performed in 6 cases, and there was no recurrent bleeding except one case of splenic infarction. Distal pancreatectomy was initially performed in 1 case. Conclusions: Pseudoaneurysms complicating chronic pancreatitis shows various clinical features. Transcatheter arterial embolization can be recommended as a primary therapeutic modality. (Korean J Gastroenterol 2007;50:108-115)
정소연,조영상,김주희,김우식,조철형,김영일 한국화학공학회 2001 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.39 No.6
본 연구에서는 반도체 제조 과정중 화학적 기계 연마(CMP) 폐수 중의 부유 실리카 문제를 해결하는 방법의 하나로 전통적인 응집 방법에 더하여 황산, 질산, 염산 등의 실리카 활성화제를 추가적으로 사용하는 경우 효과가 있음을 발견하고 이들 실리카 활성화제가 응집에 미치는 영향에 대하여 조사하였다. 실험결과 부유 실리카 수용액에 실리카 활성화제를 첨가하면 실리카의 입경이 증대되고 입자 표면의 음전하의 세기도 동시에 증가함을 알 수 있었다. 또한 실리카 활성화제, 음이온 폴리머 응집제와 Ca(OH)_2 응집제를 순차적으로 투입하는 방법에 의해 형성되는 실리카 최종 응집체의 크기와 밀도도 모두 크게 증대되었으며 결과적으로 최종 응집체의 침전 특성이 개선됨을 알 수 있었다. 실리카 활성화제로는 황산이 가장 우수한 결과를 주는 것으로 관찰되었으며 적절한 양의 실리카 활성화제와 응집제를 투입하는 경우 입경 15㎜의 초대형 고밀도 응집체의 형성이 가능함을 알 수 있었다. In this study the use of silica activators such as sulfuric acid, nitric acid and chloric acid, in addition to the conventional coagulants and flocculants, was found to give much better results in flocculating and sedimenting the colloidal silica particles from CMP process which is now generally used in semiconductor industry for the purpose of planarizing the surface of the silicon dioxide. Experimental results show that both the diameter of the silica particles and the negative charge build-up on the surface of the silica particles are increased when the silicon activator is added into the colloidal silica solution. It was also found that the final silica floc formed by using a silica activator, an anion polymer flocculant and Ca(OH)_2 has a higher density and a larger size than the floc made by using only the polymer flocculant and Ca(OH)_2. Among silica activators sulfuric acid was found to yield the best flocculation results from the stand point of the floc size and density. It was even possible to form a dense silica floc having a diameter of 15㎜ if proper quantities of a silica activator, an anionic polymer flocculant and Ca(OH)_2 are added into the colloidal silica solution.