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Ellipsoidal bounds for static response of framed structures against interactive uncertainties
Kanno, Yoshihiro,Takewaki, Izuru Techno-Press 2008 Interaction and multiscale mechanics Vol.1 No.1
This paper presents an optimization-based method for computing a minimal bounding ellipsoid that contains the set of static responses of an uncertain braced frame. Based on a non-stochastic modeling of uncertainty, we assume that the parameters both of brace stiffnesses and external forces are uncertain but bounded. A brace member represents the sum of the stiffness of the actual brace and the contributions of some non-structural elements, and hence we assume that the axial stiffness of each brace is uncertain. By using the $\mathcal{S}$-lemma, we formulate a semidefinite programming (SDP) problem which provides an outer approximation of the minimal bounding ellipsoid. The minimum bounding ellipsoids are computed for a braced frame under several uncertain circumstances.
Yoshihide Kanno,Tetsuya Ohira,Yoshihiro Harada,Shinsuke Koshita,Takahisa Ogawa,Hiroaki Kusunose,Yoshiki Koike,Taku Yamagata,Toshitaka Sakai,Kaori Masu,Keisuke Yonamine,Kazuaki Miyamoto,Megumi Tanaka,T 대한소화기내시경학회 2021 Clinical Endoscopy Vol.54 No.3
Background/Aims: The aim of this study was to evaluate the safety of sedation with propofol as an alternative to benzodiazepinedrugs in outpatient endoscopy. Methods: In this prospective study, examinees who underwent outpatient endoscopy under propofol sedation and submitted a nextdayquestionnaire with providing informed consent were evaluated. Periprocedural acute responses, late adverse events within 24hours, and examinee satisfaction were evaluated. Results: Among the 4,122 patients who received propofol in the 17,978 outpatient-based endoscopic examinations performedbetween November 2016 and March 2018, 2,305 eligible examinees (esophagogastroduodenoscopy for 1,340, endoscopicultrasonography for 945, and total colonoscopy for 20) were enrolled, and their responses to a questionnaire were analyzed. Themean propofol dose was 69.6±24.4 mg (range, 20–200 mg). Diazepam, midazolam, and/or pentazocine in combination withpropofol was administered to 146 examinees. Mild oxygen desaturation was observed in 59 examinees (2.6%); and mild bradycardia,in 2 (0.09%). Other severe reactions or late events did not occur. After eliminating 181 invalid responses, 97.7% (2,065/2,124) of thepatients desired propofol sedation in future examinations. Conclusions: Propofol sedation was found to be safe-without severe adverse events or accidents-for outpatient endoscopy on thebasis of the patients’ next-day self-evaluation. Given the high satisfaction level, propofol sedation might be an ideal tool for painlessendoscopic screening.
3-D Analysis of Core Material Effects of Motors on Torque and Iron Loss Characteristics
Kawase Yoshihiro,Yamaguchi Tadashi,Okouchi Toshinori,Nord Goran,Kanno Koki The Korean Institute of Electrical Engineers 2005 KIEE International Transactions on Electrical Mach Vol.b5 No.3
In this paper, a surface permanent magnet motor made of the Soft Magnetic Composites (SMC) is analysed using the 3-D finite element method. By comparing with the motor made of the silicon steel sheets, the usefulness of the SMC for the eddy current loss is clarified quantitatively.
Yoshihide Kanno,Tetsuya Ohira,Yoshihiro Harada,Yoshiki Koike,Taku Yamagata,Megumi Tanaka,Tomohiro Shimada,Kei Ito 대한소화기내시경학회 2018 Clinical Endoscopy Vol.51 No.3
Afferent loop syndrome is often difficult to resolve. Among patients with afferent loop syndrome whose data were extracted fromdatabases, 5 patients in whom metal stent placement was attempted were included and evaluated in this study. The procedure wastechnically successful without any adverse events in all patients. Metal stent(s) was placed with an endoscope in the through-the-scopemanner in 4 patients and via a percutaneous route in 1 patient. Obvious clinical efficacy was observed in all patients. Adverse eventsrelated to the procedure and stent occlusion during the follow-up period were not observed. Metal stent placement for malignantobstruction of the afferent loop was found to be safe and feasible.