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Image Viewer System의 개발 및 적용에 관한 고찰
양오남,서인기,홍동기,권경태,Yang, Oh-Nam,Seo, In-Ki,Hong, Dong-Ki,Kwon, Kyeong-Tae 대한방사선치료학회 2006 대한방사선치료학회지 Vol.18 No.2
Purpose: The number of patients receiving radiotherapy has increased every year and will keep increasing in the future. Therefore, the technique of radiotherapy is developing from day to day, as a result of it, the quantities of image and data used for radiotherapy are also considerably increasing. Therefore, there have been many difficulties in storing, keeping and managing them. Then, we developed and applied this system for improving complicated work process as well as solving these problems with the collaboration Medical Information Team. Materials and Methods: We exported its image at R & V (Record and Verify: Varis vision, Varian, USA) system and planning system after giving some code to be able to access from management system(RO) for department of radiation oncology to PACS. And, we programmed their information by using necessary information among many information included in DICOM head. Results: All images and data generated by our working environment (Simulation CT, L-gram image and internal body structure, DRR, does distribution )were realized at PACS and it became to be possible for clear image to be printed from any computer in department of radiation oncology. Conclusion: It was inevitable to use film during radiotherapy for patients in the past, however, due to the development of this system, film-less system became to be possible. Therefore, the darkroom space and its management cost in relation to the development process disappeared and it became to be unnecessary for spending tangible and intangible financial expense including human resources, time needed for finding film storing space and film and purchasing separate storing equipment for storing images. Finally, we think this system would be very helpful to handle ail complicated processes for radiotherapy and increasing efficiency of overall working conditions.
하경표(Kyoung-Pyo Ha),김우태(Woo Tae Kim),이춘우(Choon Woo Lee),김형익(Hyung Ick Kim),최명식(Myung Sik Choi),한동희(Dong Hee Han),서인기(In Gee Suh),김백식(Back Sik Kim),김대성(Dae Sung Kim) 한국자동차공학회 2008 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In this study. a novel system of Continuously Variavle Valve Lift (CVVL) engine was developed. The system consists of seven elements while reference engine has four elements: those additional elements are listed as oscillating cam, controller, and connecting link. The system transmits driving torque from rotating cam to cylinder valve via the connecting link and the oscillating cam, and the system changes peak valve lift by adjusting the controller. The CVVL system is characterized by timing advance and duration reduction when the peak valve lift decreases. The CVVL system has good friction behaviors compared with reference engine considering operating conditions of real engine in vehicle. The CVVL system has higher maximum power and lower fuel consumption rate than reference engine. And the system has good durability and dynamic performances. However, the system is in need of brake torque improvement in low and middle engine revolution speed by modifying valve profile.