http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Yasuhiro Shimizu,Jun Hosomichi,Saeko Nakamura,Takashi Ono 대한치과교정학회 2014 대한치과교정학회지 Vol.44 No.5
Objective: To three-dimensionally elucidate the effects of occlusal hypofunction on the periodontal ligament and alveolar bone proper of rat molars by micro-computed tomography (micro-CT). Methods: Occlusal function in the molar area was restricted by attaching an anterior bite plate on the maxillary incisors and a metal cap on the mandibular incisors of 5-week-old male Wistar rats for 1 week. The periodontal ligament space and alveolar bone proper around roots of the mandibular first molar were assessed by histology and micro-CT. Results: The periodontal ligament space was narrower and the alveolar bone proper was sparser and less continuous in the hypofunction group than in the control group. Further, both the volume of the periodontal ligament and the volumetric ratio of the alveolar bone proper to the total tissue in the region of interest were significantly lower in the hypofunction group (p < 0.05). Conclusions: Occlusal hypofunction induces atrophic changes in the periodontal ligament and alveolar bone proper of rat molars.
Aerial Cable Localization and Management Using a Mobile Mapping System
Kiichiro Ishikawa,Syuhei Ono,Jun-ichi Takiguchi,Yoshiharu Amano,Takumi Hashizume 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
Aerial cables in urban area are complicated. On the other hand, to check interferences between heavy machines and road features, a safety and efficient 3D road environment survey system’s necessity is increasing in the field of civil engineering. In this paper, efficient and robust aerial cable measurement method using a Mobile Mapping System (MMS) and its automatic extraction method from 3D point cloud model are introduced. And the MMS enablesto measure the road 3D environment and reconstruct 3D environment efficiently. The MMS can acquire road environment data at the cruising speed. The MMS enables to detect aerial cables in excess of 6mm, and its detection ratio is 99.6%. The extracted aerial cable is registered to GIS and the result of registration to a GIS is introduced.