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Dielectronic Recombination of Br-Like Tungsten Ions

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Plasma Science and Technology 2014年第3期16卷 182-187页

作者：李麦娟符彦飙苏茂根董晨钟 koike fumihiro Key Laboratory of Atomic and Molecular Physics & Functional Material of Gansu Province College of Physics and Electronic EngineeringNorthwest Normal University Joint Laboratory of Atomic and Molecular Physics Northwest Normal University and Institute of Modern Physics of Chinese Academy of Sciences Atomic and Molecular Data Research Center National Institute for Fusion Science

Accurate data for dielectronic recombination of tungsten ions are essential in the modeling of tungsten impurity transport and radiative power loss in International Thermonuclear Experimental Reactor （ITER）. Theoretical calculations have been made for dielectronic recombi- nation （DR） rate coefficients of Br-like tungsten ions using a flexible relativistic atomic code （FAC） from i eV to 50 keV. Level-by-level calculations are carried out for evaluating the contributions to DR through all the relevant Kr-like tungsten ions autoionizing inner-shell excited configuration complexes：（3s23p63d10）-14s24p5nlntl＇（n = 4-5, n＇ = 4-100,l＇ = 0-8）, （4s24pS）-lnln＇l＇（n = 4-6, n＇ = 4-100, l＇ = 0-12）. Comparison of the rate coefficients for 3s, 3p, 3d, 4s and 4p subshell excitations shows that the 4p subshell excitation dominates over the whole temperature region, 4s subshell excitation at low temperature and 3p, 3d subshell excitations at high temperature can not be neglected. In order to facilitate simple applications, the total DR rate coefficient, △n = 0,1 and 2 core excitations DR rate coefficients are fitted to an empirical formula.

关键词： Br-like tungsten dielectronic recombination rate coefficients

Excitation and decay dynamics of 1s2s inner-shell double-vacancy states of neon atoms

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Chinese Physics B 2008年第2期17卷 592-598页

作者：丁晓彬董晨钟 fumihiro koike Takako Kato Stephan Fritzsche College of Physics and Electronic Engineering Northwest Normal University Center of Theoretical Nuclear Physics National laboratory of Heavy-Ion Accelerator of Lanzhou Physics Department School of MedicineKitasato University1-15-1 Kitasato228-8555Japan National Institute for Fusion Science Department of Physics University of KasselHeinrich-Plett-Straβe 40D-34132KasselGermany

The photo-excitation and Auger decay processes of inner-shell double vacancy states 1s2s2p^6（1,3^S）3s3p of neutral neon atoms have been studied theoretically. Multi-configuration Dirac-Fock （MCDF） calculations have been carried out, with electron correlation effects taken into consideration. The relaxation of core and excited orbitals and configuration interaction are found to be crucial to creating the double vacancy states by single photo-absorption. The predominant decay paths for the double vacancy states turn out to be of the LLM Auger decay to 1s 2s^22p^53s（3p）, KLL Auger decay to 1s^22s2p^43s3p, and KLM Auger decay to 1s^22p^63s（3p）. They lead to further Auger decay, creating the neon ions of multiple charge states. For both double and single vacancy states the spectator type of Auger process is dominated in all the Auger decay processes. Theoretical Anger electron spectra are presented for further investigations, experimental and theoretical.

关键词： correlation effects multi-configuration Dirac-Fock (MCDF) method Auger decay

KLL dielectronic recombination process of He-like to O-like xenon ions

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Chinese Physics B 2012年第1期21卷 163-170页

作者：张登红师应龙蒋军董晨钟小池文博 Key Laboratory of Atomic and Molecular Physics&Functional Materials of Gansu Province College of Physics and Electronic EngineeringNorthwest Normal UniversityLanzhou 730070China Joint Laboratory of Atomic and Molecular Physics NWNU&IMP CASLanzhou 730070China Physics Department School of MedicineKitasato University1-15-1 Kitasato228-8555Japan

In this work, the KLL dielectronic recombination （DR） processes of highly charged He-like to O-like xenon ions are studied systematically by using a DR program, which is based on the multi-configuration Dirac-Fock （MCDF） method. The KLL DR resonant energies and the corresponding resonant strengths are calculated, emphasizing especially the effect of the Breit interaction on the DR strengths. The theoretical KLL DR spectra are obtained and compared with the latest experimental results obtained in the Shanghai Electron Beam Ion Trap.

关键词： KLL dielectronic recombination resonant strength Breit interaction

Effect of multifunction cavitation using phosphoric acid on fatigue and surface properties of AZ31 magnesium alloy

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镁合金学报(英文) 2023年第6期11卷 1996-2005页

作者： Shunta Matsuoka fumihiro Kato Toshihiko Yoshimura Masataka Ijiri Shoichi Kikuchi Graduate School of Integrated Science and Technology Shizuoka University3-5-1 JohokuNaka-kuHamamatsuShizuoka432-8561Japan Department of Mechanical Engineering Sanyo-Onoda City University1-1-1 Daigaku-DoriSanyo-OnodaYamaguchi 756-0884Japan Tokyo Metropolitan University 1-1 Minami-OsawaHachiojiTokyo 192-0397Japan Department of Mechanical Engineering Faculty of EngineeringShizuoka University3-5-1 JohokuNaka-kuHamamatsu-shiShizuoka 432-8561Japan

Magnesium alloy is attractive for lightweight construction but often suffers from poor corrosion resistance and low *** processing with chemicals,i.e.,multifunction cavitation(MFC),was introduced to form a high-corrosion film and improve the fatigue properties of an AZ31 magnesium *** analysis and plane bending fatigue tests were conducted for the MFC-treated magnesium alloy at a stress ratio,R,*** mechanical action of cavitation bubbles improved the fatigue life of magnesium alloys due to increasing the surface hardness and generating compressive residual ***,the combined mechanical and electrochemical action during MFC formed pits on the *** pits were large enough to easily nucleate an initial fatigue *** addition,the magnesium alloys without pit formation,for which a coating process using phosphoric acid was conducted after MFC using water,showed superior fatigue properties.

关键词： Magnesium alloy Multifunction cavitation Surface modification Fatigue Residual stress

Periostin in cerebrovascular disease

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Neural Regeneration Research 2020年第1期15卷 63-64页

作者： fumihiro Kawakita Hidenori Suzuki Department of Neurosurgery Mie University Graduate School of Medicine

Cerebrovascular diseases,which include ischemic and hemorrhagic strokes,remain serious conditions with high mortality and disability worldwide(He et al.,2018).Ischemic stroke accounts for around 80%of all strokes(He et al.,2018).Hemorrhagic stroke consisting of intracerebral hemorrhage and subarachnoid hemorrhage(SAH)occurs less frequently but may cause poorer outcomes than ischemic stroke(Ji et al.,2017;Luo et al.,2018).It is also well known that aneurysmal SAH may have delayed cerebral ischemia(DCI):thus aneurysmal SAH has both characteristics of hemorrhagic and ischemic strokes(Kanamaru et al.,2019).In spite of enormous efforts to improve outcomes,no conclusive treatment exists thus far,once stroke is completed.

关键词： al. hemorrhagic mortality

A Hopf Type Classification Theorem for Isovariant Maps from Free G-manifolds to Representation Spheres

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Acta Mathematica Sinica,English Series 2011年第4期27卷 685-700页

作者： Ikumitsu NAGASAKI fumihiro USHITAKI Department of Mathematics Kyoto Prefectural University of Medicine Nishitakatsukasa-cho Taishogun Kita-ku Kyoto 603-8334 Japan Department of Mathematics Faculty of Science Kyoto Sangyo University Kamigamo Motoyama Kita-ku Kyoto 603-8555 Japan

An isovariant map is an equivariant map preserving the isotropy subgroups. In this paper, we develop an isovariant version of the Hopf classification theorem; namely, an isovariant homotopy classification result of G-isovariant maps from free G-manifolds to representation spheres under a certain dimensional condition, the so-called Borsuk-Ulam inequality. In order to prove it, we use equivariant obstruction theory and the multidegree of an isovariant map.

关键词： Hopf classification theorem Borsuk Ulam theorem isovariant map multidegree finitegroup action

A fully inkjet-printed disposable gas sensor matrix with molecularly imprinted gas-selective materials

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npj Flexible Electronics 2022年第1期6卷 341-350页

作者： Lingpu Ge Xiao Ye Zeping Yu Bin Chen Chuanjun Liu Hao Guo Shiyi Zhang fumihiro Sassa Kenshi Hayashi Graduate School of Information Science and Electrical Engineering Kyushu University744MotookaNishi-kuFukuoka 819-0395Japan

A method was used to fabricate a fully inkjet-printed gas sensor matrix on photographic *** electrode matrix comprising 36 interdigital electrodes in a high-density layout that is easy to integrate has been fabricated using a combination of insulating ink and commercial silver ***-imprinted polymer(MIP)inks were then made using a simple solution mixing method,and these inks were printed together with carbon black ink on the electrode matrix to complete production of the ***,experimental dynamic sensing of volatile organic compounds verifies that for detection of gases corresponding to the MIP template molecules,the MIP layer offers improvements in both sensitivity and selectivity when compared with non-imprinted polymer *** matrix can produce a response of more than 20%to 3 ppm propenoic acid gas through adjustment of the printing times for the carbon black layer and the MIP layer.

关键词： matrix silver mixing

Tenascin-C in aneurysmal subarachnoid hemorrhage: deleterious or protective?

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Neural Regeneration Research 2016年第2期11卷 230-231页

作者： Hidenori Suzuki fumihiro Kawakita Department of Neurosurgery Mie University Graduate School of Medicine

Subarachnoid hemorrhage（SAH）caused by the rupture of a cerebral aneurysm is a well-known devastating cerebrovascular ***-SAH brain is vulnerable,associated with early brain injury（EBI;Suzuki,2015）.

关键词： SAH Tenascin-C in aneurysmal subarachnoid hemorrhage

Matricellular proteins as possible biomarkers for early brain injury after aneurysmal subarachnoid hemorrhage

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Neural Regeneration Research 2018年第7期13卷 1175-1178页

作者： Hidenori Suzuki Hirofumi Nishikawa fumihiro Kawakita Department of Neurosurgery Mie University Graduate School of Medicine

Aneurysmal subarachnoid hemorrhage remains devastating,and the most important determinant of poor outcome is early brain injury（EBI）.In clinical settings,as a surrogate marker of EBI,loss of consciousness at ictus,poor initial clinical grades,and some radiographic findings are used,but these markers are somewhat ***,it is imperative to find biomarkers of EBI that have beneficial prognostic and therapeutic *** our opinion,an ideal biomarker is a molecule that is implicated in the pathogenesis of both EBI and subsequently developing delayed cerebral ischemia（DCI）,being a therapeutic target,and can be measured easily in the peripheral blood in an acute stage.A good candidate of such a biomarker is a matricellular protein,which is a secreted,inducible and multifunctional extracellular matrix *** are many kinds of matricellular proteins reported,but only tenascin-C,osteopontin,galectin-3 and periostin are reported relevant to EBI and *** biomarkers of EBI may stratify aneurysmal subarachnoid hemorrhage patients into categories of risk to develop DCI,and allow objective monitoring of the response to treatment for EBI and earlier diagnosis of *** review emphasizes that further investigation of matricellular proteins as an avenue for biomarker discovery is warranted.

关键词： biomarker early brain injury galectin-3 matricellular protein osteopontin periostin subarachnoid hemorrhage tenascin-C