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Phase Stability and Ionic Conductivity of NASICON-Like Phases in ScPO4-Na3PO4-Li3PO4 Ternary System

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Journal of Rare Earths 2006年第Z1期24卷 162-165页

作者： Mariya Zhuravleva Ruslan Zakalyukin Valeriy Fomichev Andrey Novoselov akira yoshikawa Tsuguo Fukuda Galina Zimina Institute of Multidisciplinary Research for Advanced Materials Tohoku University Katahira 2-1-1 Aoba-ku Sendai 980-8577 Japan Lomonosov Moscow State Academy of Fine Chemical Technology Vernadskogo Av.86 Moscow 117571 Russia Lomonosov Moscow State Academy of Fine Chemical Technology Vernadskogo Av.86 Moscow 117571 Russia Institute of Multidisciplinary Research for Advanced Materials Tohoku University Katahira 2-1-1 Aoba-ku Sendai 980-8577 Japan Institute of Multidisciplinary Research for Advanced Materials Tohoku University Katahira 2-1-1 Aoba-ku Sendai 980-8577 Japan Institute of Multidisciplinary Research for Advanced Materials Tohoku University Katahira 2-1-1 Aoba-ku Sendai 980-8577 Japan Institute of Multidisciplinary Research for Advanced Materials Tohoku University Katahira 2-1-1 Aoba-ku Sendai 980-8577 Japan Lomonosov Moscow State Academy of Fine Chemical Technology Vernadskogo Av.86 Moscow 117571 Russia

Phase formation in ternary system of complex Sc, Na and Li phosphates was studied at 950 ℃ and synthesis of new phases of definite composition was carried out. Obtained specimens were investigated with X-ray powder diffraction, infrared and impedance spectroscopy. Compositions of fields of homogeneity with NASICON-like structure were discovered. Temperature dependency of ionic conductivity was measured.

关键词： phase diagrams solid solutions phosphates solid-state electrolytes

Growth and luminescence properties of Eu-doped HfO2/α-Al2O3 eutectic scintillator

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Journal of Rare Earths 2016年第8期34卷 796-801页

作者： Kei Kamada Kosuke Hishinuma Shunsuke Kurosawa Akihiro Yamaji Yasuhiro Shoji Jan Pejchal Yuji Ohashi Yuui Yokota akira yoshikawa New Industry Creation Hatchery Center Tohoku University6-6-10 AobaAramakiAoba-kuSendaiMiyagi980-8579Japan C&A Corporation T-Biz 6-6-40 AobaAramakiAoba-kuSendaiMiyagi 980-8579Japan Institute for Material Reseach Tohoku University2-1-1 Katahira Aoba-kuSendal Miyagi980-8577Japan Institute of Physics AS CR Cukrovarnicka 1016253 PragueCzech Republic

HfO2/a-A12O3 eutectics were grown by the micro-pulling down （μ-PD） method at the composition of 63.2 mol.% of-A1203, 35.512 mol.% HfO2, 0.92 mol.% Eu203 and 0.368 tool.% Y2O3. Rod phases with around 3-4 μm diameter were observed on the transverse cross-section. The phase-separated scintillator fibers （PSSFs） structure with fibers of around 3-4 μm diameter and 10-20 μm length was observed. The electron back scattering patterns indicated crystal orientation of [101] for monoclinic HfO2 rod phase and [0001] for μt-A1203 matrix in the transverse cross-section. Eu3＋ 4f-4f emission was observed at 550-750 nm.

关键词： eutectic scintillator micro-pulling down method rare earths

Colorectal neuroendocrine carcinoma: A case report and review of the literature

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World Journal of Clinical Cases 2019年第14期7卷 1865-1875页

作者： Tomoaki Yoshida Kenya Kamimura Kazunori Hosaka Koji Doumori Hiromitsu Oka Akito Sato Yasuo Fukuhara Shoji Watanabe Tomomi Sato akira yoshikawa Takashi Tomidokoro Shuji Terai Division of Gastroenterology and Hepatology Graduate School of Medical and Dental SciencesNiigata UniversityNiigata 951-8510Japan Division of Gastroenterology and Hepatology Nagaoka Chuo General HospitalNiigata 940-0861Japan

BACKGROUND Colorectal neuroendocrine carcinoma (NEC) is a rare tumor that demonstrates aggressive growth pattern with ingrowth into the tract, metastasis to the other organs, and invasion to the surrounding organs;these clinical characteristics result in poor prognosis. Surgical resection appears as an effective approach;however, because it is difficult to accurately diagnose NEC during the early stage and owing to its aggressive growth pattern, development of a reliable standard chemotherapy regimen and management strategies are essential. CASE SUMMARY Here, we report the case of patient with NEC showing an aggressive growth pattern that resulted in the rupture of the tumor to the outside the colon after stenting of the internal colonic stenosis. In addition, the tumor invaded into the duodenum, thereby causing duodenal stenosis that required an additional stent in the duodenum. This aggressive growth pattern is one of the main features of the NEC that is different from adenocarcinoma. To clarify the clinical characteristics, we reviewed 60 recently reported cases, including data on tumor location, size, treatment, and prognosis. CONCLUSION We consider that the information presented here is of great significance for the diagnosis, treatment, and management of symptoms of the patients with NEC.

关键词： Neuroendocrine carcinoma Colon Colorectal mixed adenoneuroendocrine carcinoma Growth Case report

一种不需形成二氧化硅图形而采用无机抗蚀剂的新型掺杂技术

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微电子学 1982年第6期 42-46+41页

作者： akira yoshikawa,Osamu Ochi,刘志存日本电电公社电通研究所日本电电公社电通研究所

本文推荐一种使用光刻形成图形的无机光致抗蚀剂作为扩散源的新掺杂技术。所用的这种抗蚀剂膜是由Se-Ge为基体用施主或受主杂质作为第三组分所组成三元系统;文章详细地介绍了扩散工艺步骤;用这种技术成功地完成了在硅中进行n型和p型杂... 详细信息

本文推荐一种使用光刻形成图形的无机光致抗蚀剂作为扩散源的新掺杂技术。所用的这种抗蚀剂膜是由Se-Ge为基体用施主或受主杂质作为第三组分所组成三元系统;文章详细地介绍了扩散工艺步骤;用这种技术成功地完成了在硅中进行n型和p型杂质的掺杂。所制成的n+-p型和p+-n型二极管具有良好的p-n结特性,而且丝毫不低于常规方法制造的二极管特性。采用这种技术还制作了双扩散n -p-n晶体管。用二次离子质谱仪（SIMS）分析结果表明:掺入硅中的硒和锗量极微,基本上可以忽略不计,这种新型掺杂技术不需形成二氧化硅掩模,也无需形成这种掩模图形。我们可以预料这种掺杂技术将在工艺简化方面和一些其它方面显示出许多优点。

关键词：抗蚀剂第三组分掺杂技术二氧化硅

Quantum advantages for image filtering on images with efficient encoding and lower-bounded signal-to-noise ratio

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Science China(Physics,Mechanics & Astronomy) 2024年第9期67卷 2-12页

作者： Zidong Cui Shan Jin akira Sone Xiaoting Wang Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610051China Key Laboratory of Quantum Physics and Photonic Quantum Information Ministry of EducationUniversity of Electronic Science and Technology of ChinaChengdu 611731China Department of Physics University of MassachusettsBoston 02125USA

Quantum image processing has long been a fascinating field,but establishing the existence of quantum speedup for all images remains *** this study,we aim to identify a subset of images for which a quantum algorithm can be developed with a guaranteed ***,we present a quantum image filtering algorithm that exhibits an exponential speedup for efficiently encoded images with a lower-bounded signal-to-noise *** approach relies on a fixed-point Grover's search to emulate the effect of Hadamard multiplication with the filtering *** demonstrate its effectiveness,we apply our method to three typical filtering ***,we emphasize the significance of the efficient-encoding assumption by illustrating that the quantum speedup may diminish for images lacking efficient *** work underscores the importance of exploring image types and features to realize potential quantum advantages in image processing.

关键词： quantum computing quantum image filtering quantum speedup

Tomographic particle image velocimetry measurement on three-dimensional swirling flow in dual-stage counter-rotating swirler

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Chinese Journal of Aeronautics 2024年第3期37卷 7-20页

作者： Yuyang ZHOU Ling DONG Mingtao SHANG Jibao LI akira RINOSHIKA Key Laboratory of Fluid Mechanics of Ministry of Education Beihang UniversityBeijing 100191China School of Mechanical and Automotive Engineering Shanghai University of Engineering ScienceShanghai 201620China AECC Commercial Aircraft Engine Co. Ltd.Shanghai 200241China Department of Mechanical Systems Engineering Yamagata UniversityYamagata 992-8510Japan

Three-Dimensional(3D)swirling flow structures,generated by a counter-rotating dualstage swirler in a confined chamber with a confinement ratio of 1.53,were experimentally investigated at Re=2.3×10^(5)using Tomographic Particle Image Velocimetry(Tomo-PIV)and planar Particle Image Velocimetry(PIV).Based on the analysis of the 3D time-averaged swirling flow structures and 3D Proper Orthogonal Decomposition(POD)of the Tomo-PIV data,typical coherent flow structures,including the Corner Recirculation Zone(CRZ),Central Recirculation Zone(CTRZ),and Lip Recirculation Zone(LRZ),were *** counter-rotating dual-stage swirler with a Venturi flare generates the independence process of vortex breakdown from the main stage and pilot stage,leading to the formation of an LRZ and a smaller CTRZ near the nozzle *** confinement squeezes the CRZ to the corner and causes a reverse rotation flow to limit the shape of the CTRZ.A large-scale flow structure caused by the main stage features an explosive breakup,flapping,and Precessing Vortex Core(PVC).The explosive breakup mode dominates the swirling flow structures owing to the expansion and construction of the main jet,whereas the flapping mode is related to the wake *** limits the expansion of PVC and causes it to contract after the impacting area.

关键词： Coherent structures Dual-stage counter-rotating swirler cup Precessing vortex core Proper orthogonal decomposition Swirling flow Tomographic particle image velocimetry

Medaka factor in the germline alpha(figα)is indispensable for oogenesis but not for gonadal sex differentiation

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Aquaculture and Fisheries 2024年第3期9卷 347-354页

作者： Katsuyasu Kamimura Masato Kinoshita akira Kanamori Division of Biological Science Graduate School of ScienceNagoya UniversityNagoyaAichi464-8602Japan Division of Applied Biosciences Graduate School of AgricultureKyoto UniversityKyoto606-8502Japan

A basic helix-loop-helix transcription factor,figα,is one of the earliest marker genes of oocyte differentiation in *** the present study,we made figαknockout medaka by CRISPR/Cas9,expecting aborted progress of oogenesis,to see if differentiation of somatic ovarian tissues is ***αknockout male gonads differentiated normally into testes with functional *** females,on the other hand,were sterile;there are oocytes only up to *** growing oocytes in diplotene were *** phenotype was already apparent at 10 days after hatching,when diplotene oocytes start to develop in the ***,several putative target genes of figαwere not expressed in the mutant female *** studies showed that medaka lacking germ cells have morphologically abnormal gonads and female to male sex reversal ***αknockout female gonads differentiated morphologically into ovaries,suggesting that in medaka,figαknockout prevents oogenesis progress into diplotene stage,and ovarian differentiation do not need developed oocytes beyond pachytene *** ovarian phenotype reminded us of"pachytene checkpoint",which blocks meiotic progress into diplotene when chromosomal abnormalities are ***,we further analyzed phenotype of oocytes in the mutant *** number of oocytes at each meiotic stage suggested that oogenesis normally proceeded up to pachytene *** number of apoptotic oocytes in the knockout ovaries was ***,we did not detect any abnormal pairings or unrepaired double-strand breaks by *** together,figαknockout likely stop oocyte growth at or around pachytene via unknown mechanisms other than"pachytene checkpoint"and arrested oocytes remained in the *** is in contrast to figαknockout mice where all oocytes underwent apoptosis quickly after birth.

关键词： bHLH transcription factor CRISPR/Cas9 Pachytene checkpoint Oocyte growth Medaka

Moving doubly heavy baryon in a strongly coupled plasma via holography

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Chinese Physics C 2024年第8期48卷 42-55页

作者： Xuan Liu Jia-Jie Jiang Xun Chen Mitsutoshi Fujita akira Watanabe School of Nuclear Science and Technology University of South ChinaHengyang 421001China School of Mathematics and Physics University of South ChinaHengyang 421001China

Gauge/gravity duality is used to study the properties of the doubly heavy baryon(QQq)at finite rapidity and temperature in heavy-ion *** investigate the impact of rapidity on string breaking and screening of QQq and compare these effects with the results for QQ¯in *** reveal that the string-breaking distances of QQq and QQ¯are close in the confined state,and the effects of rapidity and temperature on the string breaking are not *** interesting result shows that QQq cannot be determined at sufficiently high temperatures and ***,QQ¯can exist under any conditions as long as the separation distance is sufficiently ***,the screening distances of QQq and QQ¯are compared at finite rapidity and *** on the above analysis,we infer that QQ¯is more stable than QQq at finite rapidity and temperature.

关键词： holographic QCD QGP heavy quark

Scattering Characteristics of Liquid Droplets Spun Off from Rotating Disk Edge

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Journal of Thermal Science 2012年第1期21卷 42-48页

作者： Mizue MUNEKATA akira NOGUCHI Jun NISHIYAMA Hiroaki KURISHIMA Hiroyuki yoshikawa Dept. of Mech. System Eng. Kumamoto University 2-39-1 Kurokami Tokyo Electron Kyushu Ltd. Fukuhara

Scattering characteristics of liquid droplets spun off from a rotating disk edge are experimentally investigated. In the present research, aluminum disks are utilized and ethanol is employed for liquid. Scattering phenomena of the droplets are captured by the high-speed digital camera. Frequency distribution of the droplet diameter is evaluated from these images and distributions of horizontal flying velocity and angle of the droplets were measured by PTV. Liquid filaments are stretched outward from the stagnant liquid layer by centrifugal force and skew complicatedly by aerodynamic force. Some peaks appear in the distribution of the scattered droplet diameter and they are origi- nated from large terminal droplets and small droplets generated from filamentwise breakup. Most of the scattered droplets fly slightly inside in the tangential direction of the disk edge. The droplets spun off from the thin disk scatter widely compared with that from the thick one.

关键词： Rotating disk Scattering droplet Visualization Particle tracking velocimetry