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오승환,이상철,윤옥병,지유진,김여갑,류동목 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.3
Eagle's syndrome is the term given to symtomatic elogation of the styloid process or mineralization of the stylohyoid or stylomandibular ligament. Since ossification of stylohyoid ligament at cadeva was fist described by De Manchetics in 1652 and Weinlecher described clinical symptom which produced by elongated styloid process and osteotomy of styloid process in 1872, Clinical symptom which include sensation of a foreign body on the pharynx, dysphagai, dysphonia, referred pain, and mouth opening disturbance was termed by Eagle as Eagle's syndrome. then, case reports of Eagle's syndrome are presented. in these cases, the patient's chief complaints included periauricular radiating pain, mouth opening disturbance, foreign body sensation, dysphagia, tenderness on the neck. Through vairous X-ray examination and palpation of tonsillar fossa, elongted styloid process were confirmed. Under the general anesthesia there were successfully removed out via transoral approach technique, described by Eagle. after resented styloid process, they were freed from the symptoms without further complication. Therefor we reported these cases treated by surgical resection of styloid process with good results.
Autograft Surgery Using the Condylar Fragment for Implant Placement
Kim, Yeo-Gab,Kwon, Yong-Dae,Yoon, Byung-Wook,Choi, Byung-Joon,Yu, Yong-Jae,Lee, Baek-Soo Korean Academy of Dental Science 2008 Journal of korean dental science Vol.1 No.1
The fracture of facial bone usually accompanies alveolar bone fracture and dislocation or fracture of teeth. Thus, aside from the reduction of fracture, the reconstruction of occlusion through the rehabilitation of lost teeth should be considered. The dislocation of tooth after trauma accompanying alveolar bone fracture needs bone grafting in case of implant treatment. Although autogenous bone graft shows good prognosis, it has the disadvantage of requiring a secondary surgery. This is a case of a mandibular condyle head fracture accompanied by alveolar bone fracture. The condylar head fragment removed during open reduction was grafted to the alveolar bone fracture site, thereby foregoing the need for secondary surgery.
Development of Prototype of a Unmanned Transport Robot for Transport of Construction Materials
Bo-Hyun Yu,Dong-Hyung Kim,Byung-Gab Yu,Chang-Soo Han 제어로봇시스템학회 2008 제어로봇시스템학회 국제학술대회 논문집 Vol.2008 No.10
This paper presents the development of prototype Unmanned Transport Robot for application at construction sites. The robot transports construction materials following a pre-configured reference path. Hardware configuration of the Unmanned Transport Robot may be considered in three parts: the tracked vehicle system, the control system, and the multi-sensor system. The control strategy of unmanned transport consists of sensor fusion with an indirect kalman filter for localization, path-tracking, and obstacle avoidance using ultra sonic sensors for safety on the construction site. Then, sensor fusion will combine odometry from encoders and heading angle from the IMU information to guide the robot along the reference path. Finally, we describe experimental results and compare and contrast the use of odometry from encoders alone, and together with heading angle data from the IMU.
Solutions And Prevention Of Problems Arising From Alveolar Distraction Osteogenesis: 4 Case Reports
( Young Ran Kim ),( Yeo Gab Kim ),( Baek Soo Lee ),( Yong Dae Kwon ),( Byung Wook Yoon ),( Byung Joon Choi ),( Yong Jae Yu ),( Jung Hwan Oh ) 대한악안면성형재건외과학회 2008 Maxillofacial Plastic Reconstructive Surgery Vol.30 No.2S
위치 제어를 위한 SMA(Shape Memory Alloy) 매니퓰레이터 설계
이승열(Seok-jong Yu),유석종(Seung-yeol Lee),유병갑(Byung-gab Yu),한창수(Chang-soo Han) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.5
This paper describes a new mechanism for improving the force of actuators based on shape memory alloys (SMA) by increasing the number at which a coil pattern SMA spring can evenly be heated. This structure accomplishes a high efficient transformation between force and displacement overcoming the main mechanical drawback of shape memory alloys, that being the limit strain. A pantograph manipulator actuated by the introduced new mechanism has been designed for this research. Mechanical structure and driving mechanism of this manipulator are described in detail, and its control algorithm and current amplifier circuit in a position control system are designed.
김두훈 ( Doo-hoon Kim ),이병권 ( Byung-kwon Lee ),서유정 ( Yu-jeong Seo ),이주성 ( Ju-seong Lee ),곽홍규 ( Hong-kyu Kwack ),유갑상 ( Gab-sang Yoo ) 한국정보처리학회 2012 한국정보처리학회 학술대회논문집 Vol.19 No.1
현재 상용화되고 전자칠판에 쓰이는 모든 소프트웨어는 2D 판서를 지원하는 소프트웨어였으나 최근 3D TV등의 지속적인 보급과 3D 전자칠판의 점차적인 보급으로 인하여 최근의 추세에 맞추어 3D 화면에 동작하는 3D 판서를 요구하고 있다. 업계에서는 점차 3D 판서가 대두됨에 따라 3D판서를 할 수 있는 새로운 기법이 등장해야 하는 시기이다. 본 논문은 3D 전자칠판의 하드웨어에 이용될 수 있는 알고리즘의 연구이다. 3D 전용 패널을 활용한 하드웨어에 최적화된 3D 판서 소프트웨어에 포함 될 방법론을 제시한다. 이를 위해 기존의 판서 소프트웨어의 방법론과 함께 기본적인 3D의 원리를 이용하여 구현된 알고리즘을 제안한다.
이상철(Sang Chull Lee),김여갑(Yeo Gab Kim),류동목(Dong Mok Ryu),이백수(Baek Soo Lee),오승환(Sung Hwan Oh),윤옥병(Ok Byung Yoon),지유진(Yu Jin Jee) 대한구강악안면외과학회 1997 대한구강악안면외과학회지 Vol.23 No.1
Maxillofacial infection often place the oral and maxillofacial surgeon in situations where timely decisions have to be made. These decisions can be lifesaving. Odontogenic infection are frequently encountered in the practice of oral and maxillofacial surgery. These infections often repond to surgical and antimicrobial management. Otheriwise odontogenic infections have the potential to spread via the fasical spaces in the head and neck region. They can compromise vital structures in this region or involve distant structures. The classic signs of maxillofacial infections include pain, swelling, fever, dysphagia, and dehydration. The goals of management should be to correct these conditions. We have undertaken clinical studies on infections in the oral and maxillofacial regions (facial space) by analyzing hospitalized patients in the Dept. of Oral and Maxillofacial Surgery, Kyung Hee University Hospital past 5 years from 1991. to 1995. And bacterial cultures and antibiotics sensitivity test were performed and the comparative analysis of the antibiotics was done. The results were as follows: 1. The most frequent cause of oral and maxillofacial infection was odontogenic 68% and in 23% patients with signs and symptom aggrevated after teeth extraction. 2. The most common fascial spaces involved was buccal space 36.1%, followed by submandibular space 12.3% and 3 cases were Ludwig s angina. 3. Antibiotics were administrated in all cases and surgical incision and drainage was performed in 88.6%. 4. The most causative organisms isolated from the pus cultures were streptococci group 51.1%