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Seismic pounding and collapse behavior of neighboring buildings with different natural periods

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Natural Science 2012年第8期4卷 686-693页

作者： Daigoro Isobe Tokiharu Ohta tomohiro inoue Fujio Matsueda Collaborative Research Center Ashikaga Institute of Technology Ashikaga-shi Japan Division of Engineering Mechanics and Energy University of Tsukuba Tsukuba-shi Japan Kyoryo Consultants Ltd. Tokyo Japan Science Programs Division Japan Broadcasting Corporation Tokyo Japan

Seismic pounding phenomena, particularly the collision of neighboring buildings under long-period ground motion, are becoming a significant issue in Japan. We focused on a specific apartment structure called the Nuevo Leon buildings in the Tlatelolco district of Mexico City, which consisted of three similar buildings built consecutively with narrow expansion joints between the buildings. Two out of the three buildings collapsed completely in the 1985 Mexican earthquake. Using a finite element code based on the adaptively shifted integration (ASI)-Gauss technique, a seismic pounding analysis is performed on a simulated model of the Nuevo Leon buildings to understand the impact and collapse behavior of structures built near each other. The numerical code used in the analysis provides a higher computational efficiency than the conventional code for this type of problem and enables us to address dynamic behavior with strong nonlinearities, including phenomena such as member fracture and elemental contact. Contact release and recontact algorithms are developed and implemented in the code to understand the complex behaviors of structural members during seismic pounding and the collapse sequence. According to the numerical results, the collision of the buildings may be a result of the difference of natural periods between the neighboring buildings. This difference was detected in similar buildings from the damages caused by previous earthquakes. By setting the natural period of the north building to be 25% longer than the other periods, the ground motion, which hada relatively long period of 2 s, first caused the collision between the north and the center buildings. This collision eventually led to the collapse of the centerbuilding, followed by the destruction of the north building.

关键词： Seismic Pounding Collapse Behavior Neighboring Buildings Natural Period Asi-Gauss Technique

Influences of Diamines on the Morphologies and the Chemical, Thermal, and Mechanical Properties of Polyurethane-Imide Elastomers

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Open Journal of Organic Polymer Materials 2017年第4期7卷 47-60页

作者： tomohiro Ueda tomohiro Nishio Shinichi inoue Department of Applied Chemistry Aichi Institute of Technology Toyota Japan Technical Center Department of Product Development Nitta Corporation Ltd. Yamatokohriyama Japan

Polyurethane-imide elastomers (PUIEs) are formed from isocyanate, polyol, acid anhydride, and diamine by liquid polymerization. Unfortunately, many of the diamines have rarely been applied to the formation of PUIEs. Hence, investigating the effect of diamines on PUIEs remains a challenge in polymer chemistry. Herein, PUIEs prepared from 4,4'-diphenylmethane diisocyanate (MDI), polytetramethylene glycol (Mw: 1000), pyromellitic dianhydride, and aromatic diamines (such as p-phenylene diamine, 4,4'-oxydianiline, and 1,3-bis(4-aminophenoxy)benzene), and aliphatic diamines (such as 1,2-ethylene diamine, 1,6-hexamethylene diamine, and 1,12-dodecamethylene diamine) were synthesized by liquid polymerization. The morphologies and the chemical, thermal, and mechanical properties of the various PUIEs were investigated. The obtained elastomeric sheets were characterized in terms of the following tests and methods: solubility and swelling tests, X-ray diffraction and differential scanning calorimetry, dynamic mechanical analysis and thermogravimetric analysis, tensile tests, nuclear magnetic resonance spectroscopy, infrared spectroscopy, atomic force microscopy, contact angle microscopy, and scanning electron

关键词： Polyurethane-Imide Diisocyanate Polyol Diamine Pyromellitic Dianhydride Solution Polymerization

Synthesis and Properties of Novel Polyurethane-Imide Elastomers

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Open Journal of Organic Polymer Materials 2018年第1期8卷 1-13页

作者： tomohiro Ueda Shin-Ichi inoue Department of Applied Chemistry Aichi Institute of Technology Toyota Japan

Novel polyurethane-imide elastomers were prepared from isocyanates (hexamethylene, and 4,4’-dicyclohexyl diisocyanates), polytetramethylene glycol (PTMG1000, Mw = 1000), pyromellitic dianhydride, and 4,4’-diphenylmethane diamine. The formation of PUIEs was confirmed by Fourier transform infrared spectroscopy. The resultant films were studied through X-ray diffraction analysis, contact angle measurement, atomic force microscopy, solubility and swelling tests, tensile test, differential scanning calorimetry, dynamic mechanical analysis, and thermogravimetric analysis.

关键词： Polyurethane-Imide Elastomer Isocyanate Morphology Mechanical and Thermal Properties

Thermoplasticity in Polyurethane-Imide Elastomers

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Open Journal of Polymer Chemistry 2018年第1期8卷 11-20页

作者： tomohiro Ueda Shin-Ichi inoue Department of Applied Chemistry Aichi Institute of Technology Toyota Japan

Polyurethane-imide elastomers (PUIEs) are formed from isocyanates, polyols, diamines, and acid anhydrides through liquid polymerization. However, thermoplastic PUIEs have rarely been reported because the synthesis of thermoplastic PUIEs remains a challenge in polymer chemistry. In this study, PUIEs were prepared from 4,4'-diphenylmethane diisocyanate, polyols (polytetramethylene glycol (Mw = 1000), polycaprolactone diol (Mw = 1000), and polycarbonate diol (Mw = 1000)), 4,4'-oxydianiline, and acid anhydrides (pyromellitic dianhydride and 4,4'-oxydiphtaric anhydride). The thermoplasticities of the resultant PUIEs were investigated, and only PUIEs synthesized using 4,4'-oxydiphtaric anhydride expressed thermoplasticity.

关键词： Polyurethane-Imide Elastomer Polyol Acid Anhydride Morphology Chemical and Physical Properties

Effect of Mediodorsal Thalamus and Ventral Hippocampus Excitotoxic Lesion in the Adult Rat:Implicate the Neuropathology of Schizophrenia

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Effect of Mediodorsal Thalamus and Ventral Hippocampus Excit...

Diaphragmatic Plication for Patients with Acute Phase Phrenic Nerve Paralysis Following Lung Transplantation: A Case Report

第四届泛亚太地区心理卫生学术研讨会

作者： ABEKAWA tomohiro inoue Takeshi KOYAMA Tsukasa Department of Psychiatry Graduate School of Medicine Hokkaido University Sapporo Japan. Department of Psychiatry Graduate School of Medicine Hokkaido University Sapporo Japan. Department of Psychiatry Graduate School of Medicine Hokkaido University Sapporo Japan.

＜正＞Objectives: Set up the animal model of the MDT or VH bilateral excitotoxic lesion of rats. The first purpose is to examine whether the rats with their MDT-mPFC connections are impaired by MDT ibotenic acid lesion （2.0μg per hemisphere） or VH-mPFC connections are impaired by VH ibotenic acid lesion （2.0μg per hemisphere） may have more obviously behavioral changes in response to different stimulants （NMDA receptor antagonist or dopamine-release agonist）. Second, to measure the extracellular glutamate levels in rats’ mPFC or dopamine levels in rats’ nucleus accumbens （NAc） after their bilateral MDT/VH lesion 14-days. The main purpose of these studies is detecting the psycho-pathophysiological and

关键词： Rat Mediodorsal thalamus (MDT) ventral hippocampus (VH) Ibotenic acid excitotoxic lesion Behavioral effect

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Open Journal of Organ Transplant Surgery 2016年第1期6卷 1-5页

作者： Yasushi Shintani Masato Minami Masayoshi inoue Soichiro Funaki tomohiro Kawamura Meinoshin Okumura Department of General Thoracic Surgery Osaka University Graduate School of Medicine Osaka Japan

Phrenic nerve injury can occur as a complication of lung transplantation. A 54-year-old man underwent single-lung transplantation due to interstitial pneumonia. The patient required circulatory support with venoarterial extracorporeal membrane oxygenation and was unable to be weaned from ventilatory support with nitric oxide. Although enhanced CT scanning showed stenotic anastomosis of the right pulmonary artery (PA), pulmonary angiograph findings revealed that PA flow was normal under sedation and considerably decreased with spontaneous breathing. Fluoroscopy showed that the right diaphragm moved inversely to the position of the left diaphragm, indicating that the right phrenic nerve was paralytic. We performed diaphragmatic plication 7 days after lung transplantation and weaning from ventilator support was accomplished soon thereafter. Phrenic nerve dysfunction is an important clinical problem following lung transplantation. In the present case, diaphragmatic plication was effective for treatment of circulatory failure due to phrenic nerve paralysis even in acute phase after lung transplantation.

关键词： Lung Transplantation Phrenic Nerve Paralysis Diaphragmatic Plication Circulatory Failure

Continuous Saccharification of Laminarin by Immobilized Laminarinase ULam111 Followed by Ethanol Fermentation with a Marine-Derived Yeast

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Advances in Microbiology 2017年第5期7卷 387-403页

作者： Daisuke Mitsuya Masashi Yamamoto Masahiko Okai Akira inoue tomohiro Suzuki Takao Ojima Naoto Urano Laboratory of Marine Biochemistry Department of Ocean Sciences Tokyo University of Marine Science and Technology Tokyo Japan Laboratory of Marine Biotechnology and Microbiology Graduate School of Fisheries Sciences Hokkaido University Hakodate Japan

We isolated a novel laminarinase ULam111 from Flavobacterium sp. strain UMI-01. Purified ULam111 showed degradation activity against laminarin with the specific activity of 224 ± 18 U/mg at 30°C and pH 6.0. Its optimum temperature was 50°C, and degradation activities against laminarin were observed at 4°C - 80°C. With a laminarin degradation system, we investigated the preparation and properties of immobilized ULam111 with the use of the 11 types of carriers. The high activity recoveries of immobilized ULam111 were as follows: 19.4% for IB-S60P carrier beads (the non-ionic type), 15.6% for IB-S60S carrier beads (the non-ionic type), 11.9% for IB-150P carrier beads (the covalent type), and 7.1% for IB-C435 carrier beads (the cationic type). With the repeated use of immobilized ULam111, the enzyme activities immobilized on IB-S60S and those on IB-S60P remained at 40% and 30% respectively after the sixth trial. We selected IB-S60S as suitable beads for enzyme immobilization, and we attempted to construct a reactor system with ULam111 immobilized on IB-S60S beads. In this system, 1.2 - 1.9 g/L glucose was repeatedly produced from 30 mg/mL laminarin solutions after 20 hr when the reactor operation was repeated 10 times. We examined ethanol fermentation from the saccharified solutions with a marine-derived yeast (Saccharomyces cerevisiae C-19), and 0.51 - 0.58 g/L bioethanol was produced from the saccharified solution that contained 1.71 - 1.86 g/L of glucose.

关键词： Laminarin Laminarinase β-1 3-Glucanase Immobilization Ethanol Fermentation

Experimental Study on Simultaneous Swing-up of a Parallel Double Inverted Pendulum

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Experimental Study on Simultaneous Swing-up of a Parallel Do...

Abnormal Driving Behavior Detection Using a Linear Non-Gaussian Acyclic Model for Causal Discovery

第二十三届中国控制会议

作者： Akira inoue Shinichiro Nakagawa tomohiro Henmi Nobuyuki Ueki Yoichi Hirashima Department of Systems Engineering Okayama University 3-1-1 Tsushima-nakaOkayama 700-8530Japan Department of Systems Engineering Okayama University 3-1-1 Tsushima-nakaOkayama 700-8530Japan Department of Systems Engineering Okayama University 3-1-1 Tsushima-nakaOkayama 700-8530Japan Department of Systems Engineering Okayama University 3-1-1 Tsushima-nakaOkayama 700-8530Japan Department of Systems Engineering Okayama University 3-1-1 Tsushima-nakaOkayama 700-8530Japan

＜正＞ This paper considers an experimental study on simultaneous swing-up of a parallel cart-type double inverted pendulum. The method is based on the energy control by using a Lyapunov function. An additional controller is also proposed to restrict the cart travel while swinging up the two pendulums. The control experiment is successfully conducted.

关键词： Energy control swing-up cart-type parallel double inverted pendulum.

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Abnormal Driving Behavior Detection Using a Linear Non-Gauss...