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Chinese Optics Letters 2014年第6期12卷 80-85页

作者： masahiro Yamaguchi Koki Wakunami Mamoru Inaniwa Global Scientific Information and Computing Center Tokyo Institute of Technology2-12-1-I7-6Ookayama Meguro-ku Tokyo 152-8550 Japan

Full-parallax light-field is captured by a small-scale 3D image scanning system and applied to holographic display. A vertical camera array is scanned horizontally to capture full-parallax imagery, and the vertical views between cameras are interpolated by depth image-based rendering technique. An improved technique for depth estimation reduces the estimation error and high-density light-field is obtained. The captured data is employed for the calculation of computer hologram using ray-sampling plane. This technique enables high-resolution display even in deep 3D scene although a hologram is calculated from ray information, and thus it makes use of the important advantage of holographic 3D display.

关键词： Computer generated hologram from full-parallax 3D image data captured by scanning vertical camera array data

Laser Manipulation of Micro Untransmissive Particles in Water

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Journal of Thermal Science 2009年第1期18卷 85-90页

作者： masahiro OTA Makoto SHIMODA Yuuki SUSAI Division of Mechanical Engineering Tokyo Metropolitan University

The laser trapping of untransmissive particles are discussed in this paper. Photon can generate the momentum tothe untransmissive particle by diffraction and reflection on the surface of the particles. We tried laser trapping ofuntransmissive particles using an attractive force caused by the diffraction and radiation force caused by *** laser trapping system includes CW YAG laser, which has 1.064 μm in wave length and an optical *** motions of particles were monitored by a CCD camera on the top of the microscope and recordedby PC connected to the CCD camera.

关键词：频移量二极管激光器饱和吸收光谱法应用

Velocity and Size of Droplets in Dense Region of Diesel Fuel Spray on Transient Needle Opening Condition

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Journal of Thermal Science 2005年第2期14卷 181-186页

作者： Hironobu UEKI masahiro ISHIDA Daisaku SAKAGUCHI Nagasaki University 1-14 Bunkyo-machi Nagasaki 852-8521JapanNagasaki University 1-14 Bunkyo-machiNagasaki 852-8521JapanNagasaki University 1-14 Bunkyo-machiNagasaki 852-8521Japan

In order to investigate the effect of transient needle opening on early stage of spray behavior, simultaneous measurements of velocity and size of droplet were conducted by a newly developed laser 2-focus velocimeter (L2F). The micro-scale probe of the L2F was consisted of two foci with a distance of 36μm. The tested nozzle had a single hole with a diameter of 0.2 mm. The measurements of injection pressure, needle lift, and crank angle were synchronized with the spray measurement by the L2F at the position 10 mm downstream from the nozzle exit. It has been clearly shown that the velocity and size of droplet increase with needle valve opening and that the probability density distribution of droplet size can be fitted to the Nukiyama-Tanasawa distribution under the transient needle opening condition.

关键词：液滴分解光学特征激光2-聚焦速度计柴油机油料喷嘴

Stability of Inverse Problems for Ultrahyperbolic Equations

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Chinese Annals of Mathematics,Series B 2014年第4期35卷 527-556页

作者： Fikret G?LGELEYEN masahiro YAMAMOTO Department of Mathematics Bülent Ecevit University Zonguldak 67100 Turkey Department of Mathematical Sciences The University of Tokyo 3-8-1 Komaba Meguro Tokyo 1538914 Japan

In this paper, the authors consider inverse problems of determining a coefficient or a source term in an ultrahyperbolic equation by some lateral boundary data. The authors prove Hlder estimates which are global and... 详细信息

关键词：超双曲型方程稳定性反问题 r估计逆问题侧边界 an型作者

Characteristics of Nb/Al superconducting tunnel junctions fabricated using ozone gas

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Chinese Physics B 2015年第9期24卷 182-186页

作者： masahiro Ukibe Go Fujii Masataka Ohkubo Nanoelectronics Research Institute (nano) National Institute of Advanced Industrial Science and Technology (AIST)

To improve the energy resolution（？E） of Nb/Al superconducting tunnel junctions（STJs）, an ozone（O3） oxidation process has been developed to fabricate a thin defect-free tunnel barrier that simultaneously shows high critical current JC〉 1000 A/cm^2 and high normalized dynamic resistance RDA 〉 100 MΩ·μm^2, where A is the size of the STJ. The 50-μm^2 STJs produced by O3 exposure of 0.26 Pa·min with an indirect spray of O3 gas, which is a much lower level of exposure than the O2 exposure used in a conventional O2 oxidation process, exhibit a maximum JC= 800 A/cm^2 and a high RDA = 372 MΩ ·μm^2. The 100-pixel array of the 100-μm^2STJs produced using the same O3 oxidation conditions exhibits a constant leak current I leak= 14.9 ± 3.2 n A at a bias point around △ /e（where e is half the energy gap of an STJ）,and a high fabrication yield of 87%. Although the I leak values are slightly larger than those of STJs produced using the conventional O2 oxidation process, the STJ produced using O3 oxidation shows a ？E = 10 eV for the C-Kα line, which is the best value of our Nb/Al STJ x-ray detectors.

关键词： Nb/Al superconducting tunnel junctions high critical current density high energy resolution ozone

Roles of HMGB1 in spread of pain sensitization of trigeminal neuropathic pain

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中国药理学与毒理学杂志 2023年第7期37卷 523-524页

作者： DU Yu XU Cenglin YU Jie Nishibori masahiro CHEN Zhong ZHANG Shihong Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital Zhejiang University School of Medicine Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province College of Pharmaceutical Sciences Zhejiang Chinese Medical University Department of Pharmacology Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences

OBJECTIVE Trigeminal pain is mostly unilateral orofacial, but pain sensitization often spreads to contralateral orofacial or distal body regions. Widespread trigeminal pain has more severe intensity, longer duration, and wider distribution, accompanied by more serious comorbid emotional syndrome. Unfortunately, the firstline analgesics for neuropathic pain has limited effect on widespread pain along with unavoidable side ***-depth understanding of the pathogenesis of widespread trigeminal pain is urgently needed. METHODS Trigeminal pain was induced by partial transection of the infraorbital nerve(p-IONX) and evaluated by measuring nociceptive thresholds to mechanical or heat stimulation. Neuronal activity was evaluated by single-unit and patch clamp recordings. HMGB1 expression was measured by immunohistochemistry. Antagonism of HMGB1was achieved by injecting anti-HMGB1 monoclonal antibody(m Ab) intracerebrally or intraperitoneally. RESULTS P-IONX model induced not only orofacial algesia but also somatic algesia in hind paw. Spontaneous firing frequency of glutamatergic neurons in the ventral posteromedial thalamic nucleus(VPMGlu) as well as the amplitude and frequency of s EPSCs significantly increased after ***, calcium signal recording showed that VPMGlu became to be activated by the noxious mechanical stimulation given on the hind paw, suggesting that VPMGlu recruited somatic afferents after p-IONX. We further explored the upstream brain regions of VPMGluby virus retrograde tracing. We found the afferents from the gracile nucleus/cuneate nucleus(Gr/Cu), which are involved in the conduction of somatic sensation, markedly increased. And chemogenetical inhibiting Gr/Cu-VPM circuit alleviated the widespread neuropathic pain. In addition, the expression of HMGB1 in the VPM was significantly increased after p-IONX. Local administration of anti-HMGB1 m Ab in the VPM relieved widespread neuropathic pain in mice receiving p-IONX. CONCLUSION These resul

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Manipulation of Micro Solid Particles and Induced Flows in Water by Laser Irradiation

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Journal of Thermal Science 2007年第2期16卷 176-180页

作者： masahiro OTA Hiroshi OKANO Makoto YOSHIDA Division of Mechanical Engineering Tokyo Metropolitan University1Minami-osawaHachi-ojiTokyo 192-0397Japan

为为快速的扫描激光横梁的 pulsing 激光横梁和 Galvano 扫描仪的 Q 开关被改编在水微滴操作微稳固的粒子。由激光横梁照耀由一个钇铝柘榴石激光系统，导致的流动，和粒子的导致的运动在微米大小的直径套住好粒子被讨论。粒子旋转被使... 详细信息

为为快速的扫描激光横梁的 pulsing 激光横梁和 Galvano 扫描仪的 Q 开关被改编在水微滴操作微稳固的粒子。由激光横梁照耀由一个钇铝柘榴石激光系统，导致的流动，和粒子的导致的运动在微米大小的直径套住好粒子被讨论。粒子旋转被使用各向异性的微目标观察，并且而且旋转的率与顺时针方向方向是 22 r/min。一只盖子杯子的碎片在水微滴被混合，并且他们的尺寸和形状是不平的。没有由 Galvano 扫描仪扫描的那个非范围的旋转也在水里被观察。

关键词：微小固体颗粒诱发流动操纵激光辐射水

Analysis of molten metal spreading and solidification behaviors utilizing moving particle full-implicit method

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Frontiers in Energy 2021年第4期15卷 959-973页

作者： Ryo YOKOYAMA masahiro KONDO Shunichi SUZUKI Koji OKAMOTO Department of Nuclear Engineering and Management The University of Tokyo7-3-1 HongoBunkyo-kuTokyo 113-8656Japan Research Center for Computational Design of Advanced Functional materials(CD-FMat) Department of Materials and ChemistryNational Institute of Advanced Industrial Science and Technology(AIST)Central 21-1-1UmezonoTsukubaIbaraki 305-8568Japan Institute of Engineering Innovation School of EngineeringThe University of Tokyo7-3-1 HongoBunkyo-kuTokyo 113-8656Japan Nuclear Professional School The University of Tokyo2-22 ShirakataTokai-muraIbaraki 319-1188Japan

To retrieve the fuel debris in Fukushima Daiichi Nuclear Power Plants(1F),it is essential to infer the fuel debris *** particular,the molten metal spreading behavior is one of the vital phenomena in nuclear severe accidents because it determines the initial condition for further accident scenarios such as molten core concrete interaction(MCCI).In this study,the fundamental molten metal spreading experiments were performed with different outlet diameters and sample amounts to investigate the effect of the outlet for spreading-solidification *** the numerical analysis,the moving particle full-implicit method(MPFI),which is one of the particle methods,was applied to simulate the spreading *** the MPFI framework,the melting-solidification model including heat transfer,radiation heat loss,phase change,and solid fraction-dependent viscosity was developed and *** addition,the difference in the spreading and solidification behavior due to the outlet diameters was reproduced in the *** simulation results reveal the detailed solidification procedure during the molten metal *** is found that the viscosity change and the solid fraction change during the spreading are key factors for the free surface condition and solidified ***,it is suggested that the MPFI method has the potential to simulate the actual nuclear melt-down phenomena in the future.

关键词： molten metal spreading solidification particle method severe accident fuel debris decommissioning

Whole-exome sequencing for a more accurate diagnosis of intraductal papillary neoplasms of the bile duct

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Gastroenterology Report 2022年第1期10卷 618-621页

作者： Tomoaki Matsumori Norimitsu Uza Nobuyuki Kakiuchi Toshihiro Morita Yoshihiro Nishikawa masahiro Shiokawa Kojiro Taura Yuzo Kodama Hiroshi Seno Department of Gastroenterology and Hepatology Graduate School of MedicineKyoto UniversityKyotoJapan Department of Phathology and Tumor Biology Kyoto UniversityKyotoJapan Department of Hepato-Biliary-Pancreatic Surgery Graduate school of MedicineKyoto UniversityKyotoJapan Department of Gastroenterology Kobe UniversityKobeJapan

Introduction According to the World Health Organization(WHO,2018),intraductal papillary neoplasms of the bile duct(IPNB)are characterized as polypoid masses in dilated bile ducts;additionally,invasive IPNB occasionally presents with a nodular surface or mass formation[1,2].The IPNB diagnostic criteria are,however,often ambiguous,*** IPNB is considered a type of cancer and whether it must have mucus production are debatable[3].Therefore,establishing new IPNB diagnostic criteria based on an alternative approach,such as whole-exome sequencing,is ***,we present a case of IPNB with atypical features on which we performed a detailed genetic analysis to determine the genetic,morphological,and histological features of IPNB in this case.

关键词： neoplasms bile diagnosis

The structural elucidation of Eisenstein's formula

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Science China Mathematics 2010年第9期53卷 2341-2350页

作者： HASHIMOTO masahiro KANEMITSU Shigeru Department of Mathematics Wakayama College of TechnologyNoda-machi Gobo-shi 649-15Japan Graduate School of Advanced Technology Kinki University IizukaFukuoka 820-8555Japan

In this paper,we shall give a complete structural description of generalizations of the classical Eisenstein formula that expresses the first periodic Bernoulli polynomial as a finite combination of cotangent values,as a relation between two bases of the vector space of periodic Dirichlet *** shall also determine the limiting behavior of them,giving rise to Gauss' famous closed formula for the values of the digamma function at rational points on the one hand and elucidation of Eisenstein-Wang's formulas in the context of Kubert functions on the other.W shall reveal that most of the relevant previous results are the combinations of the generalized Eisenstein formula and the functional equation.

关键词： Eisenstein formula Hurwitz zeta-function polylogarithm function Gauss formula