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일개 대학병원에 내원한 원발성 폐암 환자의 인구학적 및 병리학적 특성
주혜원,강경필,김민근,박민석,임현민,이현경,이성순,이영민,김주인,염호기,최수전,이혁표 인제대학교 2006 仁濟醫學 Vol.27 No.-
Background : Recently, the lung cancer mortality rank first in Korea. The prognosis of lung cancer is not good enough with current treatments and multimodality treatments are required. So we are interested in the characteristics of lung cancer patients for better treatment. Methods : We searched lung cancer patients since 1994. Then we collected the data of primary lung cancer patients about the demographic features, histologic types and diagnotic methods. We divided the total period into 2 haves and specific analysis was tried. Results : 1) Total 850 patients were included. 633 (74.5%) were male and 217 (25.5%) were female. 2) The mean age was 65 ± 11 years old. and the peak age was 7th decades. 3) Squamous cell carcinoma(334/850, 39.3%) was slightly more prevalent than adenocarcinoma(302/850, 35.5%). Conclusion : From these results, we expected that older persons will be diagnosed to have lung cancer and adenocarcinoma will be more dominant histologic type with time.
CORBA 기반의 Application Service System을 위한 부하 공유 서비스의 설계 및 구현
임주혁,박세명,강흥식 인제대학교 2001 仁濟論叢 Vol.16 No.1
근간 분산된 객체에 대한 부하분산의 목적으로 OMG의 CORBA를 많이 이용하고 있지만 CORBA의 일반적인 기본 서비스는 특정 시스템에서 최적의 기능을 발휘하지 못한다. 이에 본 논문에서는 화상 회의를 하는 특정 시스템의 분산된 이미지 처리 객체(IPO)에 대해 CORBA를 기반으로 하여 어떻게 작업 반환 시간을 최소화 할 수 있는가에 대한 방법을 제시하였다. 이는 동일한 처리를 하는 IPO가 여러 개 존재할 경우 어떤 IPO를 선택하여 이미지 처리를 시키는 것이 가장 적합한지에 대한 것이다. 즉, Client의 이미지 처리 요청이 있을 때 Object Manager는 작업 반환 시간을 최소화 할 수 있는 IPO를 선택하여 작업을 의뢰하기 위해 Object Manager는 IPO가 탑재된 머신의 하드웨어적 성능, 실행되고 있는 IPO의 개수, 해당 IPO가 현재 처리 가능한지의 여부 그리고 처리할 이미지와 처리 후의 이미지의 크기를 고려하여 최적의 성능을 낼 수 있는 IPO를 선택하였다. 결과적으로, IPO의 상태를 고려한 경우가 CORBA의 기본 기능만을 사용한 경우보다 작업 반환 시간에 대해 9∼22% 정도 성능이 개선되었다. Recently, CORBA by OMG is widely adopted as a middleware for constructing distributed object system, but the basic services on CORBA do not appropriate for the operations on a specific distributed object system. particularly in managing the distributed image processing objects on MICS(Medical-Image Conference System). In this paper, We propose and implemented Object Manager with the load distributing policy for CORBA-based MICS to minimize the response time for a particular image processing requests. Object Manager collects and manages the informations such as the processing speed on a particular system, number of IPOs currently executing on a particular system, availability of IPO, and the size of image being requested to be processed, and returns most appropriate IPO with the minimum job response time expected on a given image. We showed with experiments that the improved MICS with the proposed Object Manager has much more shorter job response time about 9 ∼ 22 % than the system using CORBA basic services.
이주혁,이성필,김성진 경북대학교 센서기술연구소 1998 센서技術學術大會論文集 Vol.9 No.1
A humidity sensor using porous silicon layer as humidity-sensing material is developed. Its structure was designed monolithically to be compatible to the integrated circuit technology, and the porous silicon layer was formed on p-type wafers with the low resistivity of 0.01 Ωcm to be stable mechanically. Proto-type sensors were fabricated using processes such as localized formation of porous silicon, oxidation of porous silicon layer, and etching of oxidized porous silicon layer. The dependence of capacitance on relative humidity was measured at room temperature, where the capacitance increased from 0.3 nF to 1nF for the relative humidity of 55 to 90% over.
나승혁,이주하 한국항공운항학회 1994 한국항공운항학회지 Vol.2 No.-
본 연구 논문은 항공기 개발에 있어서 비행시험의 최종 단계라 할 수 있는 스핀시험의 정의, 스핀 시험방법 및 스핀 진입시의 회복방법과 실제 비행에서의 스핀 특성으로 스핀에 대한 안전성 제고 및 비행시험의 중요성을 논하였다.
김신,음종혁,이애련,서수정,김주미,김주영,황보민 大韓小兒齒科學會 1994 大韓小兒齒科學會誌 Vol.21 No.2
The autotransplantation procedure were performed for the cases with impacted maxillary anterior teeth, which were thought unrealistic by the treatment with surgical exposure and orthodontic traction into the arches. The results were as follow : 1. As the treatment with autotransplantation is the last resort, the case indicated should be selected cautiously by adequate case analysis. 2. In order to reduce postoperative complication, damages to periodontal ligaments and adjacent bony structures should be minimized by conservative surgical procedures. 3. After autotransplantation procedures, postoperative endodonic treatment and continuous follow-up check with clinical and radiographic examination should be followed. Although the autotransplantation procedure is not the treatment of choice in most cases, it was thought to be a good alternative in certain cases when orthodontic treatment is unrealistic with continuous study to overcome the handicaps.