http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
간동맥조영 CT와 문맥조영 CT 동시 촬영시 총대퇴동맥 이중천자법
이호경 대한영상의학회 1998 대한영상의학회지 Vol.39 No.5
Purpose : To evaluate the safety and efficacy of double puncture of a single common femoral artery for CT hepatic arteriography (CTHA) and CT arterial portography (CTAP) in patients with hepatocellular carcinoma. Material and methods : Between October and December 1995, 35 patients with hepatocellular carcinoma underwent double puncture of a single common femoral artery for combined CTHA and CTAP. Preangiographic laboratory data were as follows: platelet count from 28,000 to 250,000/mm3 (average, 124,500/mm3); prothrombin time from 45.8% to100%(average, 85.3%). In the inguinal area, a pair of 21G puncture needles were used unilaterally for the first two femoral punctures, at a distance of 5-7mm ; a 0.018" guidewire for the insertion of a 4-F sheath in a coaxial micropuncure introducer set ; and a 0.035" guidewire and 4 F check-flo sheath for the insertion of 4-F catheters. After being moved to the CT room, patients then underwent spiral CTHA and CTAP for further detection of hepatocellular carcinoma nodules. Transarterial chemoembolization followed, and the punctured site was then compressed by the usual finger compression method. After initial compression and one day later, we observed the puncture site for complications such as hematoma formation, thromboembolization or arteriovenous fistula, etc.Results : Except for the formation of two mild hematomas, no remarkable severe complications were noted. Fifteen patients who had previously undergone combined spiral CTHA and CTAP using the bilateral femoral puncture method(with a 5-F check-flo sheath) felt more comfortable than when an earlier method was used. Conclusion: For combined CTHA and CTAP, double puncture of a single common femoral artery is safer and more comfortable than the bilateral femoral puncture method.re method.
이호경,이인범,장근수,양대륙 한국화학공학회 1993 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.31 No.1
수요의 증가나 판매 가격 변경과 같은 시장 조건이 변화함에 따라 기존에 있는 다제품 생산용 회분식 공정에 대하여 새로운 장치를 추가하여 최적으로 개조하는 방법을 제시한다. 지금까지는 혼합정수 비선형 프로그램을 이용하여서 이 문제의 최적해를 구했으나 이 논문에서는 경험적인 방법을 제안함으로써 추가되는 장치가 놓이는 위치를 먼저 결정하고 비선형 프로그램을 이용하여 추가하는 장치의 최적크기를 구한다. 발표된 문헌 예제들을 통하여 본 방법의 효율성을 입증한다. For the change of market condition such as increase of demand and new selling price, an optimal retrofit method is proposed through adding new equipments to existing multiproduct batch plant. Until now, the optimum volume and the appropriate position of adding equipments are solved using mixed integer nonlinear program. In this paper, a heuristic procedure is presented which first determines the positions of adding equipments. Then a nonlinear programming is formulated to obtain their optimum sizes. The effectiveness of this method is verified by solving several literature problems.
이호경,고석원 한국섬유공학회 1993 한국섬유공학회지 Vol.30 No.11
Three sones of polyether polyurethaneurea(PEUU) elastomers based on polytetramethylene glycol (PTMG, MW: 1000 or 2000). 4,4'- diphenylmethane diisocyanate(MDI) and three kinds of diamine chain extenders, i.e., 4.4'-diaminodiphenyl methane(DAM). m-phenylene diamine(MPD) and P-phenylene diamine (PPD) were synthesized. The effect of hard segment structure, hard segment content and block length on the hard domain morphology was studied by using SAXS, stress hysteresis and IR measurements. The samples with lower hard segment content or those with shorter block length at the same hard segment content exhibited more isolated hard domain morphology with diffuse interfacial boundaries. Anisotropic superstructure could be observed by polarized microscopy and TEM, but the size were dependent on the kinds of chain extenders or hard segment contents.
Zero Wait 조업 방식에서의 다품종 생산용 회분식/반연속식 공정의 최적 설계
이호경,정재학,이인범,장근수 한국화학공학회 1994 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.32 No.4
스케줄링을 고려한 회분식 공장의 최적 설계는 초기 자본비를 절감시킨다. 중간저장탱크 조업 방식의 하나인 ZW(Zero Wait)에 대하여 세척시간(cleanup times)과 이동시간(transfer times)을 고려한 스케줄링 방법을 회분식 공장의 설계수식에 첨가함으로써 비선형 프로그램을 이용하여 장치의 최적크기와 생산 순서를 결정하는 방법을 제안한다. 두 개의 예제들을 통하여 본 방법의 효율성을 입증한다. The optimal design of batch plants considering scheduling effects gives us savings of capital cost. Using a nonlinear programming formulation, which includes zero wait scheduling policy with cleanup and transfer times, we propose a method to obtain the optimum size and production sequence. The effectiveness of this method is verified by solving two problems.
특허(特許)와 논문(論文)으로 본 스트리핑 공정폐액(工程廢液) 재활용(再活用) 기술(技術) 동향(動向)
이호경,이인규,박명준,구기갑,조영주,조봉규,Lee, Ho-Kyung,Lee, In-Gyoo,Park, Myung-Jun,Koo, Kee-Kahb,Cho, Young-Ju,Cho, Bong-Gyoo 한국자원리싸이클링학회 2013 資源 리싸이클링 Vol.22 No.4
1990년대 이후 정보통신산업의 급속한 발전으로 반도체 및 LCD의 수요가 지속적으로 증가하고 있다. 이에 따라 미세회로 패턴형성에 핵심이 되는 감광제와 이의 희석 제거에 사용되는 고가의 시너, 박리액의 수요가 급격히 증가하고 있어, 폐시너, 폐박리액에 대한 재활용 필요성이 대두되고 있는 실정이다. 최근 경제적인 측면과 환경적인 측면, 효율성에 관한 측면에서 스트리핑 공정폐액의 재활용 기술이 폭넓게 연구되고 있다. 본 연구에서는 스트리핑 공정폐액의 재활용 기술에 대한 특허와 논문을 분석하였다. 분석범위는 1981년~2010년까지의 미국, 유럽연합, 일본, 한국의 등록/공개된 특허와 SCI 논문으로 제한하였다. 특허와 논문은 키워드를 사용하여 수집하였고, 기술의 정의에 의해 필터링 하였다. 특허와 논문의 동향은 연도, 국가, 기업, 기술에 따라 분석하여 나타내 보았다. Since the 1990s, the rapid development of information and communication industry, the demand for semiconductor and LCD continues to increase. Therefore in the formation of fine circuit patterns, which are the cores of sensitizer and the most expensive thinner and stripper liquor used to remove photoresist and its dilution, the amount in demand are dramatically increasing, emerging need for recycling of waste thinner and stripper liquor. Recently, recycling technologies of stripping process waste solution has been widely studied by economic aspects and environmental aspects, in terms of efficiency of the stripping process. In this study, analyzed paper and patent for recycling technologies of waste solution from stripping process. The range of search was limited in the open patents of USA (US), European Union (EP), Japan (JP), Korea (KR) and SCI journals from 1981 to 2010. Patents and journals were collected using key-words searching and filtered by filtering criteria. The trends of the patents and journals was analyzed by the years, countries, companies, and technologies.