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Analysis for Effects of Temperature Rise of PV Modules upon Driving Distance of Vehicle Integrated Photovoltaic Electric Vehicles

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Energy and Power Engineering 2024年第4期16卷 131-150页

作者： Masafumi yamaguchi yasuyuki Ota Taizo Masuda Christian Thiel Anastasios Tsakalidis Arnulf Jaeger-Waldau Kenji Araki Kensuke Nishioka Tatsuya Takamoto Takashi Nakado Kazumi yamada Tsutomu Tanimoto yosuke Tomita yusuke Zushi Kenichi Okumura Takashi Mabuchi Akinori satou Kyotaro Nakamura Ryo Ozaki Nobuaki Kojima yoshio Ohshita Toyota Technological Institute Nagoya Japan Faculty of Engineering Miyazaki University Miyazaki Japan Toyota Motor Corporation Susono Japan European Commission— Joint Research Centre Ispra Italy Sharp Corporation Nara Japan Toyota Motor Corporation Toyota Japan Nissan Motor Corporation Yokosuka Japan

The development of vehicle integrated photovoltaics-powered electric vehicles (VIPV-EV) significantly reduces CO2 emissions from the transport sector to realize a decarbonized society. Although long-distance driving of VIPV-EV without electricity charging is expected in sunny regions, driving distance of VIPV-EV is affected by climate conditions such as solar irradiation and temperature rise of PV modules. In this paper, detailed analytical results for effects of climate conditions such as solar irradiation and temperature rise of PV modules upon driving distance of the VIPV-EV were presented by using test data for Toyota Prius and Nissan Van demonstration cars installed with high-efficiency InGaP/GaAs/InGaAs 3-junction solar cell modules with a module efficiency of more than 30%. The temperature rise of some PV modules studied in this study was shown to be expressed by some coefficients related to solar irradiation, wind speed and radiative cooling. The potential of VIPV-EV to be deployed in 10 major cities was also analyzed. Although sunshine cities such as Phoenix show the high reduction ratio of driving range with 17% due to temperature rise of VIPV modules, populous cities such as Tokyo show low reduction ratio of 9%. It was also shown in this paper that the difference between the driving distance of VIPV-EV driving in the morning and the afternoon is due to PV modules’ radiative cooling. In addition, the importance of heat dissipation of PV modules and the development of high-efficiency PV modules with better temperature coefficients was suggested in order to expand driving range of VIPV-EV. The effects of air-conditioner usage and partial shading in addition to the effects of temperature rise of VIPV modules were suggested as the other power losses of VIPV-EV.

关键词： Vehicle Integrated Photovoltaics (VIPV) VIPV-Powered Electric Vehicles Driving Distance PV Modules Solar Irradiation Temperature Rise Radiative Cooling

Influence of thin-film device with curvature on natural frequency of rectangle membrane under uniaxial tension

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Astrodynamics 2019年第3期3卷 257-272页

作者： Masanori Matsushita Nobukatsu Okuizumi yasutaka satou Osamu Mori Takashi Iwasa Saburo Matunaga Institute of Space and Astronautical Science Japan Aerospace Exploration AgencySagamihara252-5210Japan Department of Mechanical and Aerospace Engineering Tottori UniversityTottori680-8552Japan Department of Mechanical Engineering School of EngineeringTokyo Institute of TechnologyTokyo152-8552Japan

A solar power sail demonstrator“IKAROS”demonstrated solar sailing technology in *** membrane of the spinning solar sail IKAROS is estimated to be deformed toward the *** deformation was kept even under low *** studies suggest that curvature of thin-film solar cells on the membrane increases the out-of-plane stiffness by finite element ***,out-of-plane stiffness,and natural frequency of membranes have to be predicted for solar sails with thin-film devices,such as thin-film solar cells,dust counters,and reflectivity control devices in order to reduce the margins of sail size and propellant mass against disturbance solar pressure torque acting on the *** this paper,the effect of a curved thin-film device on the natural frequency of a rectangle membrane under uniaxial tension was *** types of membranes were evaluated:a membrane with a curved thin-film device,a membrane with a flat thin-film device,and a plane *** nonlinear finite element analysis and eigenvalue analysis were conducted to investigate the natural frequencies under varying *** simulations were verified by vibration *** was found that under low tension,the natural frequency of the membrane with the curved thin-film device is significantly higher than that of the others and that under high tension,the natural frequency of the membrane with the thin-film device is slightly lower than that of the plane *** addition,parametric analysis on the curvature of the thin-film device shows that natural frequency at low tension is sensitive to the *** eigenvalue analysis of a whole solar sail with the curved thin-film devices also suggests that the curvature remarkably affects the vibration *** conclusion,curved thin-film devices have a significant impact on the out-of-plane stiffness of a membrane under low tension.

关键词： membrane structures thin-film device vibration eigenvalue analysis experiment

Damped Oscillation of Liquid Column in Vertical U-Tube for Newtonian and non-Newtonian Liquids

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Journal of Thermal Science 2007年第4期16卷 289-300页

作者： Akira Ogawa Suguru Tokiwa Masatoshi Mutou Kazutaka Mogi Tonau Sugawara Masahide Watanabe Kouhei satou Toshikazu Kikawada Keitarou Shishido Naoya Matumoto T110-0011.Minowa 2-14-7 Taitou-KuTokyoJapan Asnohorie Co.Ltd. Japan yamada manufacturing Co.Ltd. Japar Polymatech Co.Ltd. japan Fujikura Rubber Com. Japan Furukawa Electric Co.Ltd. Japan GMA Co.Ltd. Japan Top Corporation Co.Ltd. Japan Hitachi Unisia Co.Ltd. Japan Research Student Japan

Damped oscillation of Newtonian liquid in a vertical U-tube is one of the well known phenomena and the solution of this liquid motion for the laminar flow regime in the circular pipe was solved, however, generally speaking, even if the period of the oscillational motion by this solution is nearly coincided with that of the experimental result, the estimation of the damped oscillational process with lapse of time by the solved equation is not in agreement with that of the experimental result. Therefore basing upon the experimental results of the velocity distributions of the oscillational motion in the circular U-tube for the Newtonian and non-Newtonian liquids, the velocity distribution of the Bingham plastic flow is assumed. The solutions of the damped oscillation and also of the vertical falling and rising velocities of the free surface in the vertical U-tube of the diameters D= 10mm, 20mm and 40mm are compared with water and water-glycerine solution for the Newtonian liquids and the acrylic co-polymer solutions for the non-Newtorlian liquid. The comparisons of these solved equations by the new flow model are shown in good agreement with the experimental results. The above stated results are described in detail.

关键词： Damped oscillation Bingham plastic flow Hagen-Poiseuille law Newtonian liquid non-Newtonian liquid.

Elastic Scattering of 6He ＋ p at 82.3 MeV/nucleon

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Chinese Physics Letters 2010年第9期27卷 65-68页

作者： FAISAL Jamil-Qureshi 楼建玲叶沿林曹中鑫江栋兴郑涛华辉李智焕李湘庆葛愉成庞丹阳李奇特肖军吕林辉乔锐游海波陈瑞九卢飞 Sakurai H Otsu H Nishimura M Sakaguchi S Baba H Togano y yoneda K 李琛王硕王赫李阔昂 Nakamura T Nakayama y Kondo y Deguchi S satou y Tshoo K H School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking University Beijing 100871 RIKEN 2-1Hirosawa Wako Saitama 351-0198 Japan Institute of Modern Physics Chinese Academy of Sciences Lanzhou 730000 Department of Physics Tokyo Institute of Technology Japan School of Physics Seoul NationM University Korea

Differential cross sections for the elastic scattering of halo nucleus 6He on proton target were measured at 82.3 MeV/u. The experimental results axe well reproduced by optical model calculations using global potential KD02 with a reduction of the depth of real volume part by a factor of 0.7. A systematic analysis shows that this behavior might be related to the weakly bound property of unstable nuclei.

关键词： Measurement

Optimal Design Methods Based on Creative Simplification and Clarification of Conflicting and Cooperative Relationships

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Optimal Design Methods Based on Creative Simplification and ...

The Fourth World Congress of Structural and Multidisciplinary Optimization

作者： yoshimura M satou T Department of Precision Engineering Graduate School of Engineering Kyoto University Kyoto JAPAN

This paper proposes a method for obtaining superior design solutions by first simplifying the overall design problem and design elements, and then reconstructing a fresh design system based on the simplified model. This process of simplification followed by reconstruction not only makes design optimization easier, but also increases the possibilities for discovering improved designs. After simplifying the problem, conflicting and cooperative relationships are clarified, and then the core relationships among the design characteristics are identified. Optimization methods are carried out on the reconstructed formulation, paying particular attention to the newly identified core relationships. An optimal design solution is selected from a set of obtained design alternatives that consider both the individual parts of the product as well as the design as a whole.

关键词： Optimum Design Global optimum Global Sensitivities Simplification Conflicting Relationships

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安全工作区大的新型掩埋门极GTO结构

国外电力电子技术 1991年第1期 20-22页

作者： satou,y 季凌云

EXPERIMENTAL STUDy ON TRANSIENT VOID BEHAVIOR IN SUBCOOLED WATER DURING REACTIVITy INITIATED ACCIDENTS UNDER LOW PRESSURE CONDITIONS

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EXPERIMENTAL STUDY ON TRANSIENT VOID BEHAVIOR IN SUBCOOLED W...

Prediction of human microRNA hairpins using only positive sample learning

第十三届国际核工程大会

作者： yu Maruyama Hideaki Asaka Akira satou Hideo Nakamura Japan Atomic Energy Research Institute Japan Atomic Energy Research Institute Japan Atomic Energy Research Institute Japan Atomic Energy Research Institute

＜正＞ A series of experiments is being performed to understand and to prepare database on the transient void behavior in subcooled water during reactivity initiated accidents. The first series of experiments aimed at developing a technique for the void fraction measurement and obtaining fundamental knowledge with a single simulated fuel rod under the atmospheric pressure condition. The simulated fuel rod was made of Inconel tube, vertically placed in a transparent pipe and electrically heated by the direct current. The void fraction was evaluated from the measured impedance of vapor-water mixture between a pair of electrodes based on the Maxwell theory.

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Journal of Biomedical Science and Engineering 2008年第2期1卷 141-146页

作者： Dang Hung Tran Tho Hoan Pham Kenji satou Tu Bao Ho Hanoi National University of Education Japan Advanced Institute of Science and Technology

MicroRNAs(miRNA) are small molecular non-coding RNAs that have important roles in the post-transcriptional mechanism of animal and plant. They are commonly 21-25 nucleotides (nt) long and derived from 60-90 nt RNA hairpin structures, called miRNA hairpins. A larger num-ber of sequence segments in the human genome have been computationally identified with such 60-90 nt hairpins, however a majority of them are not miRNA hairpins. Most computational meth-ods so far for predicting miRNA hairpins were based on a two-class classifier to distinguish between miRNA hairpins and other sequence segments with hairpin structures. The difficulty of these methods is how to select hairpins as negative examples of miRNA hairpins in the classifier-training datasets, since only a few miRNA hairpins are available. Therefore, their classifier may be mis-trained due to some false negative examples of the training dataset. In this paper, we introduce a one-class support vector machine (SVM) method to predict miRNA hair-pins among the hairpin structures. Different from existing methods for predicting miRNA hairpins, the one-class SVM model is trained only on the information of the miRNA class. We also illus-trate some examples of predicting miRNA hair-pins in human chromosomes 10, 15, and 21, where our method overcomes the above disad-vantages of existing two-class methods.

关键词： MicroRNA Hairpin One-class SVM

In vivo histological diagnosis for gastric cancer using endocytoscopy

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World Journal of Gastroenterology 2017年第37期23卷 6894-6901页

作者： Issei Tsurudome Ryoji Miyahara Kohei Funasaka Kazuhiro Furukawa Masanobu Matsushita Takeshi yamamura Takuya Ishikawa Eizaburo Ohno Masanao Nakamura Hiroki Kawashima Osamu Watanabe Masato Nakaguro Akira satou yoshiki Hirooka Hidemi Goto Department of Gastroenterology and Hepatology Nagoya University Graduate School of Medicine Department of Endoscopy Nagoya University Hospital Department of Pathology and Laboratory Medicine Nagoya University Hospital Department of Surgical Pathology Aichi Medical University Hospital

AIM To examine usefulness of virtual biopsy using endocytoscopy by comparing the in vivo endocytoscopic and histopathological images of gastric *** Endocytoscopy was performed in 30 patients with early gastric cancer. Of these, 26 patients showed well differentiated adenocarcinomas, while 4 patients showed poorly differentiated adenocarcinomas(including one signet ring cell carcinoma). Cancerous and non-cancerous areas were observed after double staining with 0.05% crystal violet and 0.1% methylene blue. The endocytoscopic images obtained were evaluated by an expert endoscopist and an expert pathologist without knowledge of patient clinical data, and endocytoscopic and histopathological diagnoses were *** The endocytoscopic images of the cancerous area were assessed as evaluable in 25(83.3%) and 27(90%) patients by endoscopist A and pathologist B, respectively, and those of the non-cancerous area as evaluable in 28(93.3%) and 23(76.7%) patients by the endoscopist and pathologist, respectively. The sensitivity, specificity, and diagnostic accuracy of gastric cancer diagnosis using evaluable endocytoscopic images were 88.0% and 92.9%, and 90.6% by endoscopist A, and 88.9% and 91.3%, and 90.0% by pathologist B, respectively. Evaluation of the diagnostic concordance rate between the endoscopist and the pathologist by inter-observer agreement calculation revealed no significant difference between the two observers. The inter-observer agreement(κ-value) for endocytoscopic diagnosis was 0.745. CONCLUSION Endocytoscopy is useful for the differentiation of cancerous from non-cancerous gastric mucosa, making it a promising tool for virtual biopsy.

关键词： Endocytoscopy Gastric cancer Virtual biopsy In vivo histopathology Magnifying endoscopy Double staining Crystal violet Methylene blue