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具有反射式LCD屏的高分辨率高亮度投影机

现代显示 2001年第3期 33-35页

作者： f.sato Y.Yagi K.Hanihara 刘树杞先锋电子公司先锋视像公司中国电子科技大学

我们采用反射式LCD屏，研制出一种高分辨率，高亮度投影机。该反射式LCD屏，利用了很多新技术，诸如在单晶硅上的1024×768点有源矩阵器件，垂直排列液晶与反射屏的最佳光学设计等。

关键词：投影机光学设计液晶显示屏分辨率

Porphyrin/fullerene Porous Molecular Cocrystal featuring a Robust One-Dimensional Channel

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Precision Chemistry 2024年第9期2卷 480-487页

作者： Nobuhiro sato Ryojun Toyoda Tetsu sato Zi Lang Goo Shinya Takaishi Koki Chida Takeharu Yoshii Hirotomo Nishihara Kunihisa Sugimoto Ryota Sakamoto Department of Chemistry Graduate School of ScienceTohoku UniversitySendai 980-8578Japan Department of Chemistry Kindai UniversityOsaka 577-8502Japan Institute of Multidisciplinary Research for Advanced Materials Tohoku UniversitySendaiMiyagi 980-8577Japan Institute of Multidisciplinary Research for Advanced Materials and Advanced Institute for Materials Research(WPI-AIMR) Tohoku UniversitySendaiMiyagi 980-8577Japan Division for the Establishment of frontier Sciences of Organization for Advanced Studies Tohoku UniversitySendai 980-8577Japan

Microporous molecular crystals are promising materials because of their designable porosity as well as their resistance to chemical and other ***,we developed microporous molecular cocrystals by taking advantage of the specific interactions between porphyrins and fullerene ***-crystal X-ray diffraction analysis revealed that one nickel(II)porphyrin interacts with two fullerene molecules to form a two-dimensional honeycomb network with an eclipsed stacking mode,providing onedimensional void *** the pores were activated by heat treatment or mechanical grinding,the prepared cocrystal can incorporate gas and solvent molecules reversibly while maintaining its ***,it retained its single-crystallinity in the presence of water,acid−base,or high *** findings in this study expand the availability of molecular crystals based on intermolecular interactions as porous materials,which are expected to work under conditions that have not been applicable to other molecule-based porous materials.

关键词： Microporous molecular crystal intermolecular interaction gas adsorption chemical stability high-pressure resistance

非增强血流抑制技术MR成像检测腔内动脉瘤修复术后内漏并发症:与增强CT对比的可行性研究

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国际医学放射学杂志 2017年第2期 233-233页

作者： K.Mori T.Saida f.sato Y.Uchikawa T.Konishi T.Ishiguro 赵蕾 Department of Radiology faculty of Medicine University of Tsukuba

摘要目的评价MR非增强运动敏感稳态(MSDE)准备平衡快速梯度回波(BTfE)序列用于腔内动脉瘤修复术(EVAR)后内漏检测的可行性。方法对46例主动脉和/或髂

关键词：修复术腔内动脉瘤血流抑制技术 MR 内漏 CT

Data-Driven Viewpoint for Developing Next-Generation Mg-Ion Solid-State Electrolytes

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电化学（中英文） 2024年第7期30卷 38-49页

作者： fang-Ling Yang Ryuhei sato Eric Jianfeng Cheng Kazuaki Kisu Qian Wang Xue Jia Shin-ichi Orimo Hao Li Advanced Institute for Materials Research(WPI-AIMR) Tohoku UniversitySendai980-8577Japan College of Physics Sichuan UniversityChengdu610065China Institute for Materials Research(IMR) Tohoku UniversitySendai980-8577Japan College of Materials Science and Engineering Sichuan UniversityChengdu610064China

Magnesium(Mg)is a promising alternative to lithium(Li)as an anode material in solid-state batteries due to its abundance and high theoretical volumetric ***,the sluggish Mg-ion conduction in the lattice of solidstate electrolytes(SSEs)is one of the key challenges that hamper the development of Mg-ion solid-state *** various Mg-ion SSEs have been reported in recent years,key insights are hard to be derived from a single literature ***,the structure-performance relationships of Mg-ion SSEs need to be further unraveled to provide a more precise design guideline for *** this viewpoint article,we analyze the structural characteristics of the Mg-based SSEs with high ionic conductivity reported in the last four decades based upon data mining-we provide big-data-derived insights into the challenges and opportunities in developing next-generation Mg-ion SSEs.

关键词： Data mining Magnesium-ion solid-state electrolytes All-solid-state batteries Magnesium-ion conductivity

friction stir spot welding of SPCC low carbon steel plates at extremely low welding temperature

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Journal of Materials Science & Technology 2019年第5期35卷 733-741页

作者： Y.f.Sun H.fujii Y.sato Y.Morisada Joining and Welding Research Institute Osaka University 11-1 Mihogaoka Ibaraki 567-004Japan School of Materials Science and Engineering Zhengzhou University Zhengzhou 450001 China

friction stir spot welding (fSSW) was applied to 2.0 mm thick steel plate cold-rolled commercial (SPCC) low carbon steel plates at a very low rotation speed that ranged from 5 to 50rpm, which was much lower than that generally used for the conventional fSSW technique. Due to the very low heat input, the welding processes could therefore be completed at a peak welding temperature below 160℃. As a result, a significantly refined microstructure with an average grain size of about 0.41μm was formed in the stir zone of the joints and the JI {0-11 } and J2{1-1O} shear textures were the dominant components, which are different from the D1{11-2} and D2{-1-12} shear textures formed in the conventional fSSW joints. In addition, no heat affected zone could be detected along the crosssectional plane of the joints. Although a few void-like non-bonded areas were still observed along the interface between the upper and lower steel plates, the shear tensile loads of the joints increased to about 10.0 kN when welded at a condition of 8t, 20rpm and 30 s, and the joints fractured through the plug failure mode.

关键词： friction stir spot welding Dynamic recrystallization Microstructure Steel

Solid-State Interfacial Reaction between Eutectic Au-Ge Solder and Cu/Ni(P)/Au Metalized Ceramic Substrate and Its Suppression

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Journal of Materials Science & Technology 2015年第5期31卷 445-452页

作者： f.Q.Lang H.Yamaguchi H.Nakagawa H.sato Advanced Power Electronics Research Center(ADPERC) National Institute of Advanced Industrial Science and Technology(AIST).Central 21-1-1UmezonoTsukubaIbaraki 305-8568.Japan

Eutectic Au-12 Ge solder was employed to bond the SiC power devices to a Si3N4/Cu/Ni（P）/Au multilayered *** high-temperature reliability of the bond was investigated in detail at 200,250,300 and 330 ℃,*** and Ni5Ge3intermetallic compounds（IMCs） were identified at the Au-12Ge/Ni（P） interface by micro X-ray diffraction（μXRD） and scanning electron microscopy（SEM）equipped with energy dispersive X-ray analysis（EDX）.The growth of the Ni-Ge IMCs was dominated by Ni5Ge3layer,which formed at the Ni5Ge3/NiGe interface by outward diffusion of Ni from the Ni（P） *** activation energy of the total Ni-Ge IMCs growth was 66 kJ/*** shear strength of the bond was tested at both 25 ℃ and the aging temperatures,*** shear strength decreased slightly after aging at 200 and 250 ℃.The shear strength tested at 250 ℃ was 46 MPa after aging at 250 ℃ for 3000 *** shear strength aged at 300 and 330 ℃ rapidly decreased with aging time due to the rapid growth of the *** slow down the interfacial reaction between the high temperature solder and the Ni（P）layer,an approximately 200 nm-thick Ta/TaN/Ta new diffusion barrier（DB） was deposited on the *** by transmission electron microscopy（TEM） equipped with EDX,reveals that the Ta/TaN/Ta DB was bonded well to the Ni（P） layer and the *** temperature storage test at 330 ℃ for1500 h reveals that the bond of the SiC devices maintained its high shear strength of approximately56 MPa without *** new DB effectively suppressed the interfacial reaction between the Au-12 Ge solder and the Ni（P） layer of the substrate.

关键词： High-temperature solder Interfacial reaction Activ

Analytical Investigation of Prior Austenite Grain Size Dependence of Low Temperature Toughness in Steel Weld Metal

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Journal of Materials Science & Technology 2012年第3期28卷 241-248页

作者： X.f. Zhang P. Hall H. Terasak M. sato Y. Komizo Joining and Welding Research Institute Osaka University 11-1 Mihogaoka Ibaraki Osaka 56%0047 Japan Technical Development Department Welding Business Kobe Steel Ltd. 100-1 Miyamae Fujisawa Kanagawa 251- 8551 Japan

Prior austenite grain size dependence of the low temperature impact toughness has been addressed in the bainitic weld metals by in situ ***,decreasing the grain size is the only approach by which both the strength and the toughness of a steel are ***,low carbon bainitic steel with small grain size shows a weakening of the low temperature impact toughness in this *** direct tracking of the morphological evolution during phase transformation,it is found that large austenite grain size dominates the nucleation of intragranular acicular ferrite,whereas small austenite grain size leads to grain boundary nucleation of *** kinetics information will contribute to meet the increasing low temperature toughness requirement of weld metals for the storage tanks and offshore structures.

关键词： In situ observation Prior austenite grain size Low temperature toughness Intragranular nucleation Grain boundary nucleation

Neurosteroids as stress modulators and neurotherapeutics: lessons from the retina

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Neural Regeneration Research 2023年第5期18卷 1004-1008页

作者： Yukitoshi Izumi Makoto Ishikawa Toru Nakazawa Hiroshi Kunikata Kota sato Douglas f.Covey Charles f.Zorumski Department of Psychiatry and Taylor family Institute for Innovative Psychiatric Research Washington University School of MedicineSt.LouisMOUSA Department of Ophthalmic Imaging and Information Analytics Tohoku University Graduate School of MedicineSendaiJapan Department of Ophthalmology Tohoku University Graduate School of MedicineSendaiJapan Department of Retinal Disease Control Tohoku University Graduate School of MedicineSendaiJapan Department of Advanced Ophthalmic Medicine Tohoku University Graduate School of MedicineSendaiJapan Department of Developmental Biology Washington University School of MedicineSt.LouisMOUSA

Neurosteroids are rapidly emerging as important new therapies in neuropsychiatry, with one such agent, brexanolone, already approved for treatment of postpartum depression, and others on the horizon. These steroids have unique properties, including neuroprotective effects that could benefit a wide range of brain illnesses including depression, anxiety, epilepsy, and neurodegeneration. Over the past 25 years, our group has developed ex vivo rodent models to examine factors contributing to several forms of neurodegeneration in the retina. In the course of this work, we have developed a model of acute closed angle glaucoma that involves incubation of ex vivo retinas under hyperbaric conditions and results in neuronal and axonal changes that mimic glaucoma. We have used this model to determine neuroprotective mechanisms that could have therapeutic implications. In particular, we have focused on the role of both endogenous and exogenous neurosteroids in modulating the effects of acute high pressure. Endogenous allopregnanolone, a major stress-activated neurosteroid in the brain and retina, helps to prevent severe pressure-induced retinal excitotoxicity but is unable to protect against degenerative changes in ganglion cells and their axons under hyperbaric conditions. However, exogenous allopregnanolone, at a pharmacological concentration, completely preserves retinal structure and does so by combined effects on gamma-aminobutyric acid type A receptors and stimulation of the cellular process of macroautophagy. Surprisingly, the enantiomer of allopregnanolone, which is inactive at gamma-aminobutyric acid type A receptors, is equally retinoprotective and acts primarily via autophagy. Both enantiomers are also equally effective in preserving retinal structure and function in an in vivo glaucoma model. These studies in the retina have important implications for the ongoing development of allopregnanolone and other neurosteroids as therapeutics for neuropsychiatric illnesses.

关键词： allopregnanolone autophagy enantiomers excitotoxicity gamma-aminobutyric acid type A receptors glaucoma optic nerve oxysterols

frequency Gradient with Respect to Temperature for Determination of Classification of the Phase Response Curve

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Chinese Physics Letters 2013年第12期30卷 170-173页

作者： Yasuomi D.sato Department of Brain Science and Engineering Graduate School of Life Science and Systems EngineeringKyushu Institute of Technology2-4HibikinoWakamatsuKitakyushu808-0196Japan Frankfurt Institute for Advanced Studies(FIAS)Johann Wolfgang Goethe UniversityRuth-Moufang-Str.1D60438Frankfurt am MainGermany

The interesting task here is to study the frequency-current(f–I)curve and phase response curve(PRC),subject to neural temperature variations,because the f–I curve and PRC are important measurements to understand dynamical mechanisms of generation of neural oscillations,and the neural temperature is widely known to significantly affect the ***,little is discussed about how the temperature affects the f–I curve and *** this study,frequencies of the neural oscillations,modulated with the temperature variations,are quantified with an average of the *** frequency gradient with respect to temperature derived here gives clear classifications of the PRC,regardless of the *** is also indicated that frequency decreases with an increase in temperature,resulted from bifurcation switching of the saddle-homoclinic to the saddle-node on an invariant circle.

关键词： form saddle invariant