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Journal of Thermal Science 2006年第3期15卷 240-250页

作者： Akira Ogawa masaru Arakawa T-110-0011 Minowa 2-14-7Taitou-KuTokyoJapan SHINWA RULES Co. Ltd.Sanjo-ShiNiigataJapan

The experimental result of the collection efficiency of the axial flow cyclone with the fixed guide vanes is lowerthan that with the tangential inlet pipe to the cyclone body due to the weak angular momentum transfer given byflowing through the guide ***,one of the interesting points is the control of the collection efficiencydepended on the funnel shaped exit *** collection efficiencies for these funnel shaped exit pipes aredepended on the Froude ***,in this paper,the experimental results of the pressure drop and also thecollection efficiency using the fly-ash particles and also the comparison of the calculated results of the collectionefficiency with the experimental results are described in detail.

关键词：轴向流气旋固定导向叶片压力下降收集效率

Mechanisms of fertilization elucidated by gene-manipulated animals

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Asian Journal of Andrology 2015年第4期17卷 646-652页

作者： masaru Okabe Center for Genetic Analysis for Biological ResponsesResearch Institute for Microbial Diseases OsakaUniversity Yamadaoka 3-1 Suita Osaka 565-0871Japan.

Capacitation and the acrosome reaction are key phenomena in mammalian fertilization. These phenomena were found more than 60 years ago. However, fundamental questions regarding the nature of capacitation and the timing of the acrosome reaction remain unsolved. Factors were postulated overtime, but as their roles were not verified by gene-disruption experiments, widely accepted notions concemingthe mechanism of fertilization are facing modifications. Today, although in vitro fertilization systems remain our central research tool, the importance of in vivo observations must be revisited. Here, primarily focusing on our own research, I summarize how in vivo observations using gene-manipulated animals have elucidated new concepts in the mechanisms of fertilization.

关键词： Mechanisms fertilization gene-manipulated

Time-space Viewpoint Planning for Guard Robot with Chance Constraint

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International Journal of Automation and computing 2019年第4期16卷 475-490页

作者： Igi Ardiyanto Jun miura Department of Electrical Engineering and Information Technology Universitas Gadjah Mada No. 2 Jl. Grafika Yogyakarta 55281 Indonesia Department of Computer Science and Engineering Toyohashi University of Technology 1-1 Hibarigaoka Tenpaku-cho Toyohashi Aichi 441-8580 Japan

This paper presents a novel movement planning algorithm for a guard robot in an indoor environment, imitating the job of human security. A movement planner is employed by the guard robot to continuously observe a certain person. This problem can be distinguished from the person following problem which continuously follows the object. Instead, the movement planner aims to reduce the movement and the energy while keeping the target person under its visibility. The proposed algorithm exploits the topological features of the environment to obtain a set of viewpoint candidates, and it is then optimized by a cost-based set covering problem. Both the robot and the target person are modeled using geodesic motion model which considers the environment shape. Subsequently, a particle model-based planner is employed, considering the chance constraints over the robot visibility, to choose an optimal action for the robot. Simulation results using 3D simulator and experiments on a real environment are provided to show the feasibility and effectiveness of our algorithm.

关键词： Guard robot viewpoint planning state-time space uncertainty topology chance-constraint

Effects of uniaxial compressive strain on the electronic- transport properties of zigzag carbon nanotubes

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Nano Research 2016年第5期9卷 1267-1275页

作者： Masato Ohnishi Ken Suzuki Hideo miura Fracture and Reliability Research Institute Graduate School of Engineering Tohoku University Sendai 980-8579 Japan

Recently, substantial attention has been paid to the strain sensitivity of the carbon nanotubes＇（CNTs＇） electronic properties. In this study, the relationships between the geometric structures and electronic states of zigzag CNTs under uniaxial compressive strain were investigated. We found that different factors dominate the electronic states of zigzag CNTs depending on the strain regions： the initial stage of the strain loading, which lasts until column-buckling deformation begins, and the strain regions corresponding to column- and shell-buckling deformations. Because shell-buckling deformation significantly increases the re-orbital angle, the angle between the π orbital axis vectors of adjacent atoms, strong localization of the density of states （LDOS） occurs in the buckled area. We also analyzed the current able to pass through deformed CNTs using a tight-binding-based Green＇s function approach and determined that the current can be significantly suppressed by applying uniaxial compressive strain. Our method of predicting the electronic state of a deformed CNT based on the π-orbital angle is expected to be useful for predicting the electronic properties of CNT-based electronic devices and sensors.

关键词： carbon nanotube strain buckling deformation Green's function method electronic-transport property

Integrated genome-wide differentiation and association analyses identify causal genes underlying breeding-selected grain quality traits in japonica rice

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Molecular Plant 2023年第9期16卷 1460-1477页

作者： Hideki Yoshida Satoshi Okada Fanmiao Wang Shohei Shiota Masaki Mori Mayuko Kawamura Xue Zhao Yiqiao Wang Naho Nishigaki Asako Kobayashi Kotaro miura Shinya Yoshida masaru Ikegami Akitoshi Ito Lin-Tzu Huang Yue-le Caroline Hsing Yoshiyuki Yamagata Yoichi Morinaka Masanori Yamasaki Toshihisa Kotake Eiji Yamamoto Jian Sun Ko Hirano Makoto Matsuoka Institute of Fermentation Sciences Fukushima UniversityFukushima 960-1248Japan Bioscience and Biotechnology Center Nagoya UniversityNagoyaAichi 464-8601Japan Food Resources Education and Research Center Graduate School of Agricultural ScienceKobe UniversityUzuranoKasaiHyogo 675-2103Japan Research Center of Genetic Resources NARO2-1-1 KannondaiTsukubaIbaraki 305-8602Japan Rice Research Institute Shenyang Agricultural UniversityShenyangChina Division of Life Science Graduate School of Science and EngineeringSaitama University255 Shimo-okuboSakura-kuSaitamaJapan Fukui Agricultural Experiment Station Fukui 918-8215Japan Department of Bioscience and Biotechnology Fukui Prefectural UniversityFukui 910-1195Japan Hyogo Prefectural Research Center for Agriculture Forestry and FisheriesKasaiHyogo 679-0198Japan Research Insttute for Food and Agriculture Ryukoku UniversityOotsuShiga 520-2194Japan Food Research Centre Aichi Centre for Industry and Science Technology2-1-1 Shimpukuji-choNagoyaAichi 451-0083Japan institute of Plant and Microbial Biology Academia SinicaTaipeiTaiwanChina Department of Agronomy National Taiwan UniversityTaipeiTaiwanChina lant Breeding Laboratory Facultyf gricultureKyushu University744MoookaNishikuFukukaJapan Graduate School of Agiculture Meji University1-1-1 Higashi-MitaTama-kuKawasakiKanagawa 214571Japa Crop Science Laboratory Faculty of AgricultureNigata UniversityIkarashiNishi-kuNigata 950-2181Japan

Improving grain quality is a primary objective in contemporary rice *** modern rice breeding has developed two different types of rice,eating and sake-brewing rice,with different grain characteristics,indicating the selection of variant gene alleles during the breeding *** the critical importance of promptly and efficiently identifying genes selected in past breeding for future molecular breeding,we conducted genome scans for divergence,genome-wide association studies,and map-based ***,we successfully identified two genes,OsMnS and OsWOX9D,both contributing to rice grain *** encodes a mannan synthase that increases the white core frequency in the endosperm,a desirable trait for sake brewing but decreases the grain appearance ***9D encodes a grass-specific homeobox-containing transcription factor,which enhances grain width for better sake ***,haplotype analysis revealed that their defective alleles were selected in East Asia,but not Europe,during modern *** addition,our analyses indicate that a reduction in grain mannan content during African rice domestication may also be caused a defective OsMnS allele due to breeding *** study not only reveals the delicate balance between grain appearance quality and nutrition in rice but also provides a new strategy for isolating causal genes underlying complex traits,based on the concept of“breeding-assisted genomics”in plants.

关键词： rice grain quality sake brewing mannan genomic analysis

Velocity Measurement of Induced Flow by a Laser Focusing Shock Wave

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Journal of Thermal Science 2006年第1期15卷 48-53,26页

作者： Hiroyuki HIRAHARA masaru FUJINAMI Masaaki KAWAHASHI Department of Mechanical Engineering Saitama University 255 Shimo-Okubo Sakura Saitama 338-8570Japan. Graduate School of Science and Engineering Saitama University Japan

这研究的目的是在一条微隧道为控制使用冲击波。冲击波被在隧道搏动的激光横梁集中的激光产生。使用脉搏激光产生一个冲击波，非静止的流动在在平行盘子之间的小空间被导致。球形、圆柱的吃惊繁殖与 schlieren 方法被观察。吃惊马赫数... 详细信息

这研究的目的是在一条微隧道为控制使用冲击波。冲击波被在隧道搏动的激光横梁集中的激光产生。使用脉搏激光产生一个冲击波，非静止的流动在在平行盘子之间的小空间被导致。球形、圆柱的吃惊繁殖与 schlieren 方法被观察。吃惊马赫数字与时间减少并且来临到统一。是在以前的调查报导了，吃惊速度在一个短远处和时间被稀释。在现在的实验，它没处于在球形、圆柱的吃惊实验之间的吃惊速度被发现显著差别。随后，圆柱的冲击波导致的流动用 PIV 技术被学习。烟 tracer 在实验被使用，它的速度在 100 渭 s 以内被测量。数字模拟被执行调查在气体和烟粒子之间的动量松驰。一个合适的吃惊开始模型在模拟被介绍。试验性的结果证明一个宽加速和减速地区在冲击波后面存在。另外，在试验性的数据的松驰距离在数字模拟比那长得多。关键词微强风的波浪 - 激光集中 - 流动可视化 - PIV CLC 数字

关键词：微爆波激光聚焦 PIV 流体可视化纳米技术流动控制速率测量

Last deglacial relative sea level variations in Antarctica derived from glacial isostatic adjustment modelling

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Geoscience Frontiers 2013年第6期4卷 623-632页

作者： Jun’ichi Okuno Hideki miura National Institute of Polar Research 10-3 Midori-choTachikawaTokyo 190-8518Japan Research Institute for Global Change Japan Agency for Marine-Earth Science and Technology3173-25 Showa-machiKanazawa-kuYokohama 236-0001Japan

We present relative sea level （RSL） curves in Antarctica derived from glacial isostatic adjustment （GIA）predictions based on the melting scenarios of the Antarctic ice sheet since the Last Glacial Maximum （LGM）given in previous ***,Holocene-age RSL observations obtained at the raised beaches along the coast of Antarctica are shown to be in agreement with the GIA *** differences from previously published ice-loading models regarding the spatial distribution and total mass change of the melted ice are *** models were also derived from GIA modelling; the variations can be attributed to the lack of geological and geographical evidence regarding the history of crustal movement due to ice sheet ***,we summarise the previously published ice load models and demonstrate the RSL curves based on combinations of different ice and earth *** RSL curves calculated by GIA models indicate that the model dependence of both the ice and earth models is significantly large at several sites where RSL observations were *** particular,GIA predictions based on the thin lithospheric thickness show the spatial distributions that are dependent on the melted ice thickness at each *** characteristics result from the short-wavelength deformation of the ***,our predictions strongly suggest that it is possible to find the average ice model despite the use of the different models of lithospheric *** sea level and crustal movement observations,we can deduce the geometry of the post-LGM ice sheets in detail and remove the GIA contribution from the crustal deformation and gravity change observed by space geodetic techniques,such as GPS and GRACE,for the estimation of the Antarctic ice mass change associated with recent global warming.

关键词： Antarctic ice sheet Relative sea level Glacial isostatic adjustment Melting history Lithospheric thickness

Analysis and control of vibration of ropes in a high-rise elevator under earthquake excitation

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Earthquake Engineering and Engineering Vibration 2019年第2期18卷 447-460页

作者： Thuan Xuan Nguyen Nanako miura Akira Sone Faculty of Mechanical Engineering Kyoto Institute Technology Matsugasaki

In this research, the vibration of elevator ropes, including the main rope and compensation rope are investigated simultaneously in a high-rise elevator system under earthquake excitation. Moreover, the paper presents a new control method to restrain the sway of both ropes. This study considers varying rope lengths during elevator operation which cause other system parameters such as natural frequency, and damping ratio to be time-variant variables. The dynamics of the ropes are analyzed by solving the governing non-stationary, nonlinear equation numerically. In order to mitigate the vibration of ropes in several motion conditions, particularly upwards movement, downward movement, stopped at the lowest position, and stopped at the highest position, an active equipment is installed at the compensation sheave. The stability of the system using the controller is analyzed at four states: without disturbance and static car, without disturbance and mobile car, including disturbance and static car, and including disturbance and mobile car. The efficiency of the controller used for dampening the vibration of elevator ropes is validated by numerical simulation results.

关键词： elevator ropes high-rise elevator vibration controller stability

Quantitative classification of Camellia japonica and Camellia rusticana(Theaceae)based on leaf and flower morphology

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Plant Diversity 2021年第3期43卷 216-224页

作者： Harue Abe Hiroki miura Yoshitaka Motonaga Center for Sustainable Agriculture and Forestry Faculty of AgricultureNiigata University94-2 KodaSadoNiigata952-2206Japan Aomori Prefectural Asamushi Aquarium 1-25 BabayamaAsamushiAomoriAomori039-3501Japan Faculty of Agriculture Niigata University8050 Ikarashi-ninochoNishi-kuNiigata950-2181Japan

In Japan,Camellia japonica and Camellia rusticana are naturally *** differences in their habitats and morphologies,they have been classified by various researchers as either varieties,subspecies,or *** taxonomic position of *** and *** remain unclear because morphological comparisons have been restricted to limited areas and quantitative data are *** grows in snowy places,unlike *** *** displays ornithophily,*** displays *** species have adapted to different growing environments and pollinators,which have altered the morphology of flowers and *** therefore quantitatively estimated the differentiation between these two taxa by comparing the morphologies of leaf hypodermis,flower form,petal color,and filament color in twenty *** findings allowed us to differentiate these two species by the presence or absence of a leaf *** also discovered an intermediate type of leaf hypodermis,which might also be caused by *** component analysis(PCA)indicated that the flower morphologies between these species were significantly *** petal and filament colors were also significantly *** quantitative analysis suggests that speciation caused by differences in both pollinators and environment is one of the factors involved in this *** findings in *** and *** help to explain speciation processes for other species as well.

关键词： Camellia japonica Camellia rusticana Ecological isolation Pollinator shift Pollination syndrome Reproductive isolation

Combined disturbance-observer-based control and iterative learning control design for pulsed superconducting radio frequency cavities

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Nuclear Science and Techniques 2021年第6期32卷 11-22页

作者： Feng Qiu Shinichiro Michizono Toshihiro Matsumoto Takako miura High Energy Accelerator Research Organization 1-1 OhoTsukubaIbaraki 305-0801Japan The Graduate University for Advanced Studies HayamaKanagawa 240-0193Japan Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China

The development of iterative learning control combined with disturbance-observer-based(DOB)control for the digital low-level radio frequency(LLRF)system of the International Linear Collider project is *** objective of this study is to compensate for both repetitive(or predictable)and unpredictable disturbances in a radio frequency system(e.g.,beam loading,Lorentz force detuning,and microphonics).The DOB control approach was verified using the LLRF system at the Superconducting Test Facility(STF)at KEK in the absence of a *** method comprising DOB control combined with an iterative learning control algorithm was then demonstrated in a cavity-simulator-based test bench,where a simulated beam was *** results showed that the performance of the LLRF system was improved,as expected by this combined control *** plan to further generalize this approach to LLRF systems at the STF and the future International Linear Collider project.

关键词： Low-level radio frequency Disturbance observer Iterative learning control