http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Ryota IIDA (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
Evaluation of Reduction Effect in Traffic Accidents Based on Time Series Reliability Model
Ryota IIDA,Makoto MOCHIZUKI,Yoshiki NII,Dejan ORSAG,Keisuke SUZUKI,Kiichi YAMADA 대한인간공학회 2016 대한인간공학회 학술대회논문집 Vol.2016 No.06
In recent years, various kinds of research related to alarm systems which prevent traffic accidents has been reported. However, there are few which evaluated the effects of reducing driver’s reaction time during unpredictable risks on decreasing traffic accidents. In this study, a methodology for estimating the collision mitigation ratio is discussed, using a collision-prevention system that supplies aroma to drivers whose cognitive attentiveness has decreased due to a prolonged driving. First, we investigated driving action at intersections during use of the system in a driving simulator. The results showed that reaction time to the crossing vehicle was significantly reduced when a driver used the aroma-supplying collision-prevention system. In addition, a system that doesn’t supply aroma could cause a decrease in driver’s attentiveness. The Time Series Reliability Model, which is a driver-model considering the driver’s time-series cognitive status, is constructed and the collision mitigation ratio is estimated. The results suggested that the collision ratio increased during the use of a system that presents only information, since the driver depended on the system information and the driver’s safety confirmation actions were inhibited. Meanwhile, the collision ratio decreased during the use of the aroma-supplying system since reaction time to the crossing vehicle was reduced by an effect on stress reduction. It can be concluded that traffic accidents at intersections are reduced by using the aroma-supplying system.
-
Yuji Kasukawa,Naohisa Miyakoshi,Michio Hongo,Yoshinori Ishikawa,Daisuke Kudo,Ryota Kimura,Yuichi Ono,Jumpei Iida,Chiaki Sato,Yoichi Shimada 대한척추외과학회 2019 Asian Spine Journal Vol.13 No.5
Study Design: Retrospective and comparative study. Purpose: We assessed surgical treatment outcomes in patients with thoracic myelopathy due to ossification of the ligamentum flavum (OLF), and OLF combined with ossification of the posterior longitudinal ligament (OPLL) or vertebral fracture (VF) at the same level. Overview of Literature: OLF and OPLL cause severe thoracic myelopathy. Osteoporotic VF commonly occurs at the thoracolumbar junction. There have been no investigations of thoracic myelopathy due to OLF and VF. Methods: Forty patients were divided among three groups: the OLF group (n=23): myelopathy due to OLF, the OLF+OPLL group (n=12): myelopathy due to OLF and OPLL, and the OLF+VF group (n=5): myelopathy due to OLF and VF. We recorded OLF, OPLL, and VF sites and operative procedures. Each patient’s neurological status, according to the Japanese Orthopaedic Association (JOA) score, and walking ability were evaluated pre- and postoperatively. Results: Patients in the OLF+OPLL group were significantly younger than those in the other two groups. The preoperative JOA score was significantly lower in the OLF+VF than OLF group. The final JOA score was significantly lower in the OLF+VF than OLF and OLF+OPLL groups. The JOA score recovery rate was significantly lower in the OLF+VF than OLF group. Final walking ability was significantly worse in the OLF+OPLL and OLF+VF groups than in the OLF group and significantly worse in the OLF+VF than OLF+OPLL group. Conclusions: Thoracic myelopathy due to OLF+VF occurs primarily in older females, who also exhibit worse preoperative and postoperative neurological status, and worse walking ability, than patients with thoracic myelopathy due to OLF or OLF+OPLL.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
