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조영필(Young Pill Cho),구자용(Ja Ryoung Koo),유시봉(Si Bong Yoo) 대한악안면성형재건외과학회 1985 Maxillofacial Plastic Reconstructive Surgery Vol.7 No.1
This is a case report of bilateral mandibular prognathism associated with macroglossia treated by C-sliding osteotomies in the rami with V-shaped partial glossectomy. The results are as follows: 1. The selection of the operation method can be decided by the clinical evaluation, the cephalometric analysis and the model analysis. 2. The bilateral mandibular prognathism is corrected esthetically and functionally by C-sliding osteotomies in the rami of mandible. 3. It was able to prevent from relapsing after practice of partial glossectomy.
공기흡입식 추진기관용 연료조절밸브시스템 개발에 관한 연구
이도윤,최현영,박종승,구자용,Lee, Do-Yun,Choi, Hyun-Young,Park, Jong-Seung,Koo, Ja-Yoeng 한국군사과학기술학회 2005 한국군사과학기술학회지 Vol.8 No.4
In this paper, we have proposed a fuel metering unit of ai breathing engine. The proposed valve system consists of a constant pressure drop valve and a metering valve, which are controlled by servovalve. We carried out nonlinear and linear analysis, computer simulation and experimentation to find effects of some factors on system performance. Analysis and experimental results show a good agreement. It is also shown that the system stability is affected by pressure drop of metering valve and inlet pressure of injectors.