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Magnetic sensorless sensing of Plasma Position in the superconducting Tokamak HT-7

Plasma science and Technology 2004年第5期6卷 2459-2462页

作者： K.Nakamura Z.s.Ji B.shen P.J.Qin s.itoh K.Hanada M.sakamoto E.Jotaki M.Hasegawa A.Iyomasa s.Kawasaki H.Nakashima Research Institute for Applied Mechanics Kyushu University 6-1 Kasuga-koen Kasuga City Fukuoka 816-8580 JapanInstitute of Plasma Physics Chinese Academy of Sciences Hefei 230031 ChinaInstitute of Plasma Physics Chinese Academy of Sciences Hefei 230031 ChinaInstitute of Plasma Physics Chinese Academy of Sciences Hefei 230031 ChinaResearch Institute for Applied Mechanics Kyushu University 6-1 Kasuga-koen Kasuga City Fukuoka 816-8580 JapanResearch Institute for Applied Mechanics Kyushu University 6-1 Kasuga-koen Kasuga City Fukuoka 816-8580 JapanResearch Institute for Applied Mechanics Kyushu University 6-1 Kasuga-koen Kasuga City Fukuoka 816-8580 JapanInstitute of Plasma Physics Chinese Academy of Sciences Hefei 230031 ChinaResearch Institute for Applied Mechanics Kyushu University 6-1 Kasuga-koen Kasuga City Fukuoka 816-8580 JapanResearch Institute for Applied Mechanics Kyushu University 6-1 Kasuga-koen Kasuga City Fukuoka 816-8580 JapanResearch Institute for Applied Mechanics Kyushu University 6-1 Kasuga-koen Kasuga City Fukuoka 816-8580 JapanResearch Institute for Applied Mechanics Kyushu University 6-1 Kasuga-koen Kasuga City Fukuoka 816-8580 Japan

Magnetic sensorless sensing experiments of the plasma horizontal positionhave been carried out in the superconducting tokamak HT-7. The horizontal position is calculatedfrom the vertical field coil current and voltage without using signals of magnetic probes placednearby a plasma. The calculations are focused on the ripple frequency component of the power *** is no drift problem with the time integration of magnetic probe signals. The error of thederived plasma position is lower than 2% of the plasma minor radius.

关键词： sensorless sensing plasma position HT-7

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全新世呼伦湖区植被和气候变化的孢粉记录

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第四纪研究 2010年第6期30卷 1105-1115页

作者：温锐林肖举乐常志刚翟大有周朗许清海李月从 s.itoh 中国科学院地质与地球物理研究所新生代地质与环境重点实验室北京100029 河北师范大学资源与环境科学学院石家庄050016 Paleo Labo Co. Ltd. Saitama 335-0016 Japan

文章详细分析了内蒙古呼伦湖HL06岩芯沉积的孢粉组合,基于AMs^(14)C年代标尺,恢复了全新世湖区植被演变过程;并根据我国北方和蒙古表土孢粉数据和气象资料,建立了孢粉-气候参数转换函数,定量重建了呼伦湖区降水和气温的变化历史。结果表... 详细信息

文章详细分析了内蒙古呼伦湖HL06岩芯沉积的孢粉组合,基于AMs^(14)C年代标尺,恢复了全新世湖区植被演变过程;并根据我国北方和蒙古表土孢粉数据和气象资料,建立了孢粉-气候参数转换函数,定量重建了呼伦湖区降水和气温的变化历史。结果表明,11000～8000aB.P.,湖区植被以蒿、藜占优,为干草原景观,气候暖干;8000～6400aB.P.,湖区禾本植物扩张,山地桦林发育,降水显著增加,气温逐渐降低;6400～4400aB.P.,湖区旱生草本植物增加,降水减少,气温继续下降;4400～3350aB.P.,耐旱藜科植物大量生长,湖区荒漠化,气候极端干旱;3350～2050aB.P.,湖区草原植被有所恢复,降水略有增加,气温有所回升;2050～1000aB.P.,湖区蒿属植物减少,山地松林发育,气温降至全新世最低;最近1000年,藜科、禾本科等伴人植物大量出现,反映出人类活动对湖区自然环境的影响。全新世呼伦湖区气温变化在轨道尺度上受控于北半球太阳辐射量的变化,而在亚轨道尺度上可能与东亚夏季风强度有关。距今8000年前湖区降水较弱可能因为早全新世北半球高纬残存冰盖抑制了东亚季风雨带的北上,季风降水的千年-百年尺度波动与热带西太平洋海气相互作用密切相关。

关键词：呼伦湖 HL06岩芯孢粉植被降水气温东亚季风全新世

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全新世呼伦湖区植被和气候变化的孢粉记录

全新世呼伦湖区植被和气候变化的孢粉记录

引用

中国科学院地质与地球物理研究所第十届(2010年度)学术年会

作者：温锐林肖举乐常志刚翟大有周朗许清海李月从 s.itoh 中国科学院地质与地球物理研究所新生代地质与环境重点实验室河北师范大学资源与环境科学学院

文章详细分析了内蒙古呼伦湖HL06岩芯沉积的孢粉组合,基于AMsC年代标尺,恢复了全新世湖区植被演变过程;并根据我国北方和蒙古表土孢粉数据和气象资料,建立了孢粉-气候参数转换函数,定量重建了呼伦湖区降水和气温的变化历史。结果表明,11... 详细信息

文章详细分析了内蒙古呼伦湖HL06岩芯沉积的孢粉组合,基于AMsC年代标尺,恢复了全新世湖区植被演变过程;并根据我国北方和蒙古表土孢粉数据和气象资料,建立了孢粉-气候参数转换函数,定量重建了呼伦湖区降水和气温的变化历史。结果表明,11000～8000aB.P.,湖区植被以蒿、藜占优,为干草原景观,气候暖干;8000～6400aB.P.,湖区禾本植物扩张,山地桦林发育,降水显著增加,气温逐渐降低;6400～4400aB.P.,湖区旱生草本植物增加,降水减少,气温继续下降;4400～3350aB.P.,耐旱藜科植物大量生长,湖区荒漠化,气候极端干旱;3350～2050aB.P.,湖区草原植被有所恢复,降水略有增加,气温有所回升;2050～1000aB.P.,湖区蒿属植物减少,山地松林发育,气温降至全新世最低;最近1000年,藜科、禾本科等伴人植物大量出现,反映出人类活动对湖区自然环境的影响。全新世呼伦湖区气温变化在轨道尺度上受控于北半球太阳辐射量的变化,而在亚轨道尺度上可能与东亚夏季风强度有关。距今8000年前湖区降水较弱可能因为早全新世北半球高纬残存冰盖抑制了东亚季风雨带的北上,季风降水的千年-百年尺度波动与热带西太平洋海气相互作用密切相关。

关键词：呼伦湖 HL06岩芯孢粉植被降水气温东亚季风全新世

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多层CT评估胰腺导管内乳头状黏液瘤的侵袭性

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国际医学放射学杂志 2008年第A6期31卷 487-488页

作者： H.Ogawa s.itoh M.Ikeda K.suzuki s.Naganawa 郭欢仪 Department of Radiology Nagoya University Graduate School of Medicine65 Tsurumai-choShowakuNagoya 466-8560Japan

目的对用多层CT了解胰腺导管内乳头状黏液瘤(intraductal papillary mucinous neoplasm,IPMN)有无侵袭性的价值进行评价。

关键词：胰腺导管 intraductal mucinous neoplasm papillary 黏液瘤侵

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Progress in Physics and Technology Developments for the Modification of JT-60

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Plasma science and Technology 2004年第1期6卷 2141-2150页

作者： H.Tamai M.Matsukawa G.Kurita N.Hayashi K.Urata Y.M.Miura K.Kizu K.Tsuchiya A.Morioka Y.Kudo s.sakurai K.Masaki T.suzuki M.Takechi Y.Kamada A.sakasai s.Ishida K.Abe A.Ando T.Cho T.Fujii T.Fujita s.Goto K.Hananda A.Hatayama T.Hino H.Horiike N.Hosogane M.Ichimura Tsuji-Iio s.itoh M.Katsurai M.Kikuchi A.Kohyama H.Kubo M.Kuriyama M.Matsuoka Y.Miura N.Miya T.Mizuuchi K.Nagasaki H.Ninomiya N.Nishino Y.Ogawa K.Okano T.Ozeki M.saigusa M.sakamoto M.satoh M.shimada R.shimada M.shimizu T.Takagi Y.Takase T.Tanabe K.Toi Y.Ueda Y.Uesugi K.Ushigusa Y.Yagi T.Yamamoto K.Yatsu K.Yoshikawa Japan Atomic Energy Research Institute Naka Ibarahi 311-0193 Japan Tohoku University University of Tsukuba Osaka University Kyushu University Keio University Hokkaido University Tokyo Institute of Technology the University of Tokyo Kyoto University Mie University Hiroshima University Central research Institute of Electric Power Industry Ibaraki University ITER JCT Nagoya University National Institute for Fusion science Kanazawa University National Institute of Advanced Industrial science and Technology

Recent progress in the physics and engineering design study for themodification programme of JT-60 is presented. In order to achieve a steady state high-βplasmaoperation, which is the dominant issue of this programme, physics design for the MHD control and thestability analysis is investigated. Engineering design and the R & D for the superconducting coils,irradiation shield are performed well towards the mission of programme.

关键词： modification of JT-60 physics design technology developments

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Response of plasma turbulence against externally-controlled perturbations

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Chinese Physics B 2012年第9期21卷 385-395页

作者： s. I. itoh K. itoh Research Institute for Applied Mechanics Kyushu University itoh Research Center for Plasma Turbulence Kyushu University National Institute for Fusion science

A theory of the dynamic response of the turbulent plasma against the externally-controlled perturbations is reported. Based on Mori＇s method [Prog. Theor. Phys. 33 423 （1965）], the nonlinear force is assmned to be separated into the memory function and the nonlinear fluctuating force. The former corresponds to the damping term, and the latter is categorized into the noise term. The response of the turbulent plasma against the externally-controlled source is formulated. The response kernel, which connects the externally-controlled source and the response of the turbulent field, is shown to have both the nonlocal property （in space） and the non-Markovian response （in time）. A discussion is made on the nonlocal and non-Markovian response, including the case of disparate-scale interactions. A new method is proposed to observe experimentally the nonlocal interaction in the drift wave turbulence via the zonal flows.

关键词： turbulent transport nonlocal and non-Markovian response

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Revisiting cerebral endothelial cells in Alzheimer’s disease

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Neural Regeneration Research 2025年第10期20卷 2911-2912页

作者： Amira s.Hanafy Department of Neurosurgery University Hospital BonnBonnGermany

Alzheimer’s disease(AD)is the most common neurodegenerative disorder characterized by slow and progressive decline of cognitive and memory *** only approximately 5%of the cases,AD is familial,as often predisposed by genetic mutations(Hoogmartens et al.,2021),while sporadic AD accounts for approximately 95%of the *** amyloid cascade hypothesis is one of the fundamental hypotheses put out to explain AD pathogenesis as dysregulated homeostasis of amyloid-β(Aβ)peptides that leads to the accumulation of Aβplaques in the parenchyma,an anatomical hallmark of AD.

关键词： Alzheimer Aβ cerebral

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A systematic review of progenitor survival and maturation in Parkinsonian models

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Neural Regeneration Research 2025年第11期20卷 3172-3178页

作者： Giulia Comini Eilís Dowd Pharmacology&Therapeutics and Galway Neuroscience Center University of GalwayGalwayIreland

stem cell-based brain repair is a promising emergent therapy for Parkinson's disease based on years of foundational research using human fetal donors as a cell *** current therapeutic options for patients,this approach has the potential to provide longterm stem cell–derived reconstruction and restoration of the dopaminergic input to denervated regions of the brain allowing for restoration of certain functions to *** ultimate clinical success of stem cell–derived brain repair will depend on both the safety and efficacy of the approach and the latter is dependent on the ability of the transplanted cells to survive and differentiate into functional dopaminergic neurons in the Parkinsonian *** the pre-clinical literature suggests that there is considerable variability in survival and differentiation between studies,the aim of this systematic review was to assess these parameters in human stem cell-derived dopaminergic progenitor transplant studies in animal models of Parkinson's disease.A defined systematic search of the PubMed database was completed to identify relevant studies published up to March *** screening,76 articles were included in the analysis from which 178 separate transplant studies were *** these,graft survival could be assessed in 52 studies and differentiation in 129 ***,we found that graft survival ranged froms transplanted,with a median of 51%of transplanted cells surviving in the brain;while dopaminergic differentiation of the cells ranged from 0% to 46% of cells transplanted with a median of 3%.This systematic review suggests that there is considerable scope for improvement in the differentiation of stem cell-derived dopaminergic progenitors to maximize the therapeutic potential of this approach for patients.

关键词： cell replacement therapy differentiation embryonic stem cells graft induced pluripotent stem cells Parkinson's disease survival transplant

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Measurements of the Ca II infrared triplet lines of young stellar objects

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Research in Astronomy and Astrophysics 2013年第10期13卷 1189-1201页

作者： Yoichi itoh Keiko Moto'oka Yoichi itoh The saga Prefecture space & science Museum 16351 Nagashima Takeo Takeo Saga 843-0021 Japan Nishi-Harima Astronomical Observatory Center for Astronomy University of Hyogo 407-2 Nishigaichi Sayo Hyogo 679-5313 Japan yitoh @nhao.jp

Equivalent widths and line widths of Ca II infrared triplet emission lines were measured in the high-resolution optical spectra of 39 young stellar *** found that the equivalent widths of the emission lines decrease with stellar *** has often been claimed that strong chromospheric activity is generated by a dynamo process caused by fast rotation of the ***,we found no clear correlation between the strength of the Ca II lines and the stellar rotation ***,we found that the objects with high mass accretion rates had stronger Ca II emission *** correlation supports the turbulent chromosphere model or the magnetic accretion theory for classical T Tauri *** also noticed that the equivalent widths of Ca II lines in transitional disk objects are one-tenth of those in classical T Tauri stars,even if the masses of the circumstellar disks are comparable.

关键词： stars:pre-main sequence stars:emission lines

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Fundamental studies on enhancement and blinking mechanism of surface-enhanced Raman scattering （sERs） and basic applications of sERs biological sensing

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Frontiers of physics 2014年第1期9卷 31-46页

作者： Yuko s. Yamamoto Mitsuru Ishikawa Yukihiro Ozaki Tamitake itoh Nano-Bioanalysis Research Group Health Research Institute National Institute of Advanced Industrial Science and Technology (AIST) Takamatsu Kagawa 761-0395 Japan Department of Chemistry Josai University Itado Saitama 350-0295 Japan Department of Chemistry School of Science and Technology Kwansei Gakuin University Sanda Hyogo 669-1337 Japan

We review recent our results in the fundamental study of surface-enhanced Raman scattering （sERs） with emphasis on experiments that attempted to identify the enhancement and blinking mechanism using single Ag nanoparticle dimers attached to dye molecules. These results are quantitatively discussed in the framework of electromagnetic mechanism. We also review recent our results in basic sERs applications for biological sensing regarding detections of cell surface molecules and distinction of disease marker molecules under single cell and single molecule level.

关键词： plasmonics surface-enhanced Raman scattering (sERs) surface-enhanced fluorescence,Ag nanoparticle

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