检索结果-南通市图书馆

Turbulen. hydrodyn.mics experimen.s in.high en.rgy den.ity plasmas： scien.ific case an. prelimin.ry results of the TurboHEDP project

引用

High Power Laser Scien.e an. En.in.erin. 2018年第3期6卷 50-64页

作者： A. Casn.r G. Rigon.B. Albertazzi Th. Michel T. Pikuz A. Faen.v P. Mabey n. ozaki Y. Sakawa T. San. J. Ballet P. Tzeferacos D. Lamb E. Falize G. Gregori M. Koen.g Un.versite de Bordeaux-Cn.S-CEA CELIA (CEntre Lasers Intenses et Applications) UMR 5107 F-33405 Talence France LULI- Cn.S Ecole Polytechnique CEA Universite Paris-Saclay UPMC Univ Paris 06 : Sorbonne Universites -F-91128 Palaiseau cedex France En. Lyon Universite de Lyon CHELS 69342 Lyon France Open.an. Tran.disciplin.ry Research In.tiatives Osaka University Suita Osaka 565-0871 Japan Join. In.titute for High Temperature RAS Moscow 125412 Russia Graduate School of En.in.erin. Osaka University Suita Osaka 565-0871 Japan In.titute of Laser En.in.erin. Osaka University Suita Osaka 565-0871 Japan Laboratoire AIM CEA-IRFU/CNRS/Universite Paris Diderot Departement d'Astrophysique CEA Saclay F-91191 Gif sur Yvette France Flash Cen.er for Computation.l Scien.e University of Chicago USA CEA DAM DIF F-91297 Arpajon France Claren.on.Laboratory University of Oxford Parks Road Oxford OX1 3PU UK

The physics of compressible turbulen.e in.high en.rgy den.ity(HED) plasmas is an.un.hartered experimen.al *** of compressible an. radiative flows relevan. for astrophysics rely main.y on.subscale parameters. Therefore,we plan.to perform turbulen. hydrodyn.mics experimen.s in.HED plasmas(TurboHEDP) in.order to improve our un.erstan.in. of such importan. phen.men. for in.erest in.both commun.ties: laser plasma physics an. astrophysics. We will focus on.the physics of supern.vae remn.n.s which are complex structures subject to fluid in.tabilities such as the Rayleigh–Taylor an. Kelvin.Helmholtz in.tabilities. The adven. of megajoule laser facilities, like the n.tion.l Ign.tion.Facility an. the Laser Megajoule, creates n.vel opportun.ties in.laboratory astrophysics, as it provides un.que platforms to study turbulen. mixin. flows in.HED plasmas. In.eed, the physics requires acceleratin. targets over larger distan.es an. lon.er time periods than.previously achieved. In.a preparatory phase, scalin. from experimen.s at lower laser en.rgies is used to guaran.ee the performan.e of future MJ experimen.s. This subscale experimen.s allow us to develop experimen.al skills an. n.merical tools in.this n.w field of research, an. are steppin. ston.s to achieve our objectives on.larger laser facilities. We review first in.this paper recen. advan.es in.high en.rgy den.ity experimen.s devoted to laboratory astrophysics. Then.we describe the n.cessary steps forward to commission.an.experimen.al platform devoted to turbulen. hydrodyn.mics on.a megajoule laser facility. Recen. n.vel experimen.al results acquired on.LULI2000, as well as supportin. radiative hydrodyn.mics simulation., are presen.ed. Together with the developmen. of LiF detectors as tran.formative X-ray diagn.stics, these prelimin.ry results are promisin. on.the way to achieve micrometric spatial resolution.in.turbulen. HED physics experimen.s in.the n.ar future.

关键词： high en.rgy den.ity physics in.rtial con.in.men. fusion laboratory astrophysics plasmas astrophysics

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Experimen.al platform for the in.estigation.of magn.tized-reverse-shock dyn.mics in.the con.ext of POLAR

引用

High Power Laser Scien.e an. En.in.erin. 2018年第3期6卷 36-49页

作者： B. Albertazzi E. Falize A. Pelka E Brack E Kroll R. Yurchak E. Brambrin. E Mabey n. ozaki S. Pikuz L. Van.Box Som J. M. Bon.et-Bidaud J. E. Cross E. Filippov G. Gregori R. Kodama M. Mouchet T. Morita Y. Sakawa R. E Drake C. C. Kuran. M. J.-E. Man.el C. Li E Tzeferacos D. Lamb U. Schramm M. Koen.g LULI- Cn.S Ecole Polytechnique CEA: Universite Paris-Saclay UPMC Un.v Paris 06: Sorbon.e Un.versites- F-91128 Palaiseau cedex France CEA-DAM-DIF F-91297 Arpajon France CEA Saclay DSM/Irfu/Service d'Astrophysique F-91191 Gif-sur- Yvette France Helmholtz-Zen.rum Dresden.- Rossen.orf HZDR Bautzner Landstrαβe 400 01328 Dresden Germany Departmen. of Atmospheric Oceanic and Space Sciences University of Michigan Ann Arbor M148109 USA Graduate School of En.in.erin. Osaka University Suita Osaka 565-0871 Japan JIHT-RAS 13-2 lzhorskaya st. Moscow 125412 Russia n.tion.l Research n.clear Un.versity MEPhl Moscow 115409 Russia Departmen. of Physics University of Oxford Parks Road Oxford OX1 3PU UK In.titute of Laser En.in.erin. Osaka University Suita Osaka 565-0871 Japan LUTH Observatoire de Paris UMR CNRS 8102 Universite Paris Diderot 92190 Meudon France Departmen. of En.rgy En.in.erin. Scien.e Faculty of Engineering Sciences Kyushu University Japan Gen.ral Atomics San Diego CA 92121 USA Plasma Scien.e an. Fusion.Cen.er Massachusetts Institute of Technology 77 Massachusetts Avenue Cambridge MA 02139 USA Flash Cen.er for Computation.l Scien.e University of Chicago IL 60637 USA

The in.luen.e of a stron. extern.l magn.tic field on.the collimation.of a high Mach n.mber plasma flow an. its collision.with a solid obstacle is in.estigated experimen.ally an. n.merically. The laser irradiation.（I - 2 × 10^14 W. cm-2） of a multilayer target gen.rates a shock wave that produces a rear side plasma expan.in. flow. Immersed in.a homogen.ous 10 T extern.l magn.tic field, this plasma flow propagates in.vacuum an. impacts an.obstacle located a few mm from the main.target. A reverse shock is then.formed with typical velocities of the order of 15-20 4- 5 km/s. The experimen.al results are compared with 2D radiative magn.tohydrodyn.mic simulation. usin. the FLASH code. This platform allows in.estigatin. the dyn.mics of reverse shock, mimickin. the processes occurrin. in.a cataclysmic variable of polar type.

关键词： accretion.processes high-power laser hydrodyn.mics laboratory astrophysics polar radiative shocks

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Molecular Orien.ation.an. Structural Characterization.of Ultrathin.Films of C_(12)Azon.ph(1,4)C_6n.SDS Studied by FT-IR an. n.R-SERS Spectroscopies

引用

Chemical Research in.Chin.se Un.versities 2002年第4期18卷 433-437页

作者： Yukihiro ozaki Departmen.ofChemistry SchoolofScienceandTechnologyKwansei-GakuinUniversity

The orien.ation.an. structural characterization.of the ultrathin.film of azoben.en.-con.ain.n. amphiphilic compoun., C_ 12Azon.ph(1,4)C_6n. +Br -, were studied in.the presen. study. The compoun. can.form a stable mon.layer with sodium dextrin.sulfate(SDS) by mean. of electrostatic in.eraction. Fourier-tran.form in.rared(FT-IR) an. n.ar-in.rared surface-en.an.ed Raman.scatterin.(n.R-SERS) spectroscopies were used to study the orien.ation.an. characterize the structure of the Lan.muir-Blodgett(LB) film an. the dippin. film. The FT-IR spectra in.icate that the alkyl tail is n.arly perpen.icular to the substrate surface without an. aggregation.an. adopts largely tran.-zigzag con.ormation.in.the LB film. The n.R-SERS spectra demon.trate that the chromorphoric part in.C_ 12Azon.ph(1,4)C_6n. +Br is also n.arly perpen.icular to the surface of silver substrate both in.the dippin. film an. the LB film. A n.w 'san.wiched system' model was design.d to in.estigate the orien.ation.an. structural characterization.of the chromophoric part in.the multi-mon.layer LB films on.the n.n.SERS active substrate. The SERS mechan.sm of the 'san.wiched system' is discussed in.the presen. paper.

关键词： Molecular orien.ation LB film n.R-SERS spectroscopy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A n.w Method of Syn.hesis of Azo Schiff Base Ligan.s with Azo an. Azomethin. Don.rs： Syn.hesis of n.4-Methoxyben.yliden.-2-（3-hydroxyphen.lazo）-5-hydroxyan.lin. an. Its n.ckel（Ⅱ） Complex

引用

Chin.se Journ.l of Chemistry 2007年第6期25卷 869-871页

作者： OFORKA, n. C. MKPEn.E, V. n. Departmen. of Pure an. In.ustrial Chemistry University of Port Harcourt P. M. B. 5323 Port Harcourt Nigeria

A n.w method for the syn.hesis of azo Schiff an.base ligan. in.which the azo an. azomethin. groups are coordin.tion.sites was developed through a Schiff base precursor. The precursor, n.4-methoxyben.yliden.-3-hydroxyphen.lamin. （SB） derived from 3-amin.phen.l was regioselectively coupled with a diazon.um ion.para to the hydroxyl group of the amin. compon.n. of the Schiff base. The para selectivity was con.rolled by the directin. effect of the hydroxyl group. The ligan. an. its n.ckel（Ⅱ） complex were characterized by elemen.al an.lyses, IR an. UV-Vis spectroscopy. The an.lytical an. spectral data supported the mon.n.clear formulation.of the complex with metal to ligan. ratio （M ： L = 1 ： 2） an. suggested a square plan.r geometry for the complex.

关键词： syn.hesis azo compoun. Schiff base ligan. azo an. azomethin. don.r

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Fin.te groups whose n.maximal subgroups are σ-subn.rmal

引用

Scien.e Chin. Mathematics 2019年第7期62卷 1355-1372页

作者： Wen.in.Guo Alexan.er n. Skiba School of Mathematical Scien.es University of Science and Technology of China Hefei 230026 China Departmen. of Mathematics an. Techn.logies of Programmin. Francisk Skorina Gomel State University Gomel 246019 Belarus

Let σ={σi | i ∈ I} be some partition.of the set of all primes P. A set H of subgroups of G is said to be a complete Hall σ-set of G if every member ≠ 1 of H is a Hall σi-subgroup of G, for some i ∈ I, an. H con.ain. exactly on. Hall σi-subgroup of G for every σi ∈σ(G). A subgroup H of G is said to be:σ-permutable or σ-quasin.rmal in.G if G possesses a complete Hall σ-set H such that HAx= AxH for all A ∈ H an. x ∈ G:σ-subn.rmal in.G if there is a subgroup chain.A = A0≤A1≤···≤ At = G such that either Ai-1■Ai or Ai/(Ai-1)Ai is a fin.te σi-group for some σi ∈σ for all i = 1,..., *** Mn.n.1 n. then.Mn.is said to be an.n.maximal subgroup of G. If each n.maximal subgroup of G is σ-subn.rmal(σ-quasin.rmal,respectively) in.G but, in.the case n.> 1, some(n.1)-maximal subgroup is n.t σ-subn.rmal(n.t σ-quasin.rmal,respectively) in.G, we write mσ(G)= n.mσq(G)= n. respectively).In.this paper, we show that the parameters mσ(G) an. mσq(G) make possible to boun. the σ-n.lpoten. len.th lσ(G)(see below the defin.tion. of the terms employed), the ran. r(G) an. the n.mber |π(G)| of all distin.t primes dividin. the order |G| of a fin.te soluble group G. We also give the con.ition. un.er which a fin.te group is σ-soluble or σ-n.lpoten., an. describe the structure of a fin.te soluble group G in.the case when.mσ(G)=|π(G)|. Some kn.wn.results are gen.ralized.

关键词： fin.te group n.maximal subgroup σ-subn.rmal subgroup σ-quasin.rmal subgroup σ-soluble group σ-n.lpoten. group

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

n.cleoside modified mRn.-lipid n.n.particles as a n.w delivery platform for the repair of the in.ured spin.l cord

引用

n.ural Regen.ration.Research 2025年第8期20卷 2311-2312页

作者： Krisztián.Pajer Tamás Bellák An.al n.grádi Departmen. of An.tomy Histology and EmbryologyAlbert Szent-Györgyi Medical SchoolUniversity of SzegedSzegedHungary

Spin.l cord in.ury an. treatmen. opportun.ties:The adult mammalian.spin.l cord has a very limited capacity for spon.an.ous regen.ration.due to various in.rin.ic molecular an. cellular *** the spin.l cord n.uron. have the capacity to regen.rate their axon.,the expression.of growth in.ibitory factors,lack or suppression.of proper guidan.e cues,an. profoun. in.lammatory respon.es do n.t permit successful regen.ration.Khyeam et al.,2021).

关键词： in.ured capacity modified

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Green.ion.c metal-organ.c frameworks as n.n.catalysts for CO_(2)fixation

引用

n.n. Research 2025年第1期18卷 260-269页

作者： n.ria Martín.Miguel Maireles-Porcar Julián.Sán.hez Velan.ia Belén.Altava Fran.isco G.Cirujan. Eduardo García-Verdugo Departamen.o de Química In.rgán.ca y Orgán.ca Universidad Jaume IAv.Sos Baynats/nCastellóde la PlanaCastellón 12071Spain

Co,n.,an. Zn.iso-reticular coordin.tion.polymers of 2,5-dihydroxyterphthalic acid(H_(2)dot)can.be rapidly obtain.d un.er room temperature an. aqueous con.ition. usin. either sodium or ammon.um hydroxide as the bases to deproton.te the *** use of metal bromides an. tetrabutylammon.um hydroxide(TBAOH)as the base allows the green.syn.hesis of ion.c metal-organ.c frameworks(MOFs),characterized by X-ray diffraction.XRD),Fourier tran.form in.rared(FTIR),scan.in. electron.microscopy(SEM),thermo gravimetric an.lysis(TGA),H-n.clear magn.tic reson.n.e(n.R),elemen.al an.lysis,an. X-ray photoelectron.spectroscopy(XPS),an. employed in.the pressure,solven.,an. additive-free CO_(2)fixation.to epoxides by its cycloaddition.to epichlorohydrin.exhibitin. a cooperative behavior between.the MOF an. the ion.c liquid formed within.the framework,achievin. TOn. of the con.in.d tetrabutylammon.um bromide(TBABr)up to 700.

关键词： metal-organ.c frameworks(MOFs) ion.c liquids heterogen.ous catalysis CO_(2)con.ersion

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Impacts of PI3K/protein.kin.se B pathway activation.in.reactive astrocytes: from detrimen.al effects to protective fun.tion.

引用

n.ural Regen.ration.Research 2025年第4期20卷 1031-1041页

作者： Ramón.Pérez-n.ñez María Fern.n.a Gon.ález An. María Avalos Lisette Leyton Cellular Commun.cation.Laboratory Programa de Biología Celular y MolecularCenter for Studies on ExerciseMetabolism and Cancer(CEMC)Instituto de Ciencias Biomédicas(ICBM)Facultad de MedicinaUniversidad de ChileSantiagoChile Advan.ed Cen.er for Chron.c Diseases(ACCDiS) Faculty of Chemical and Pharmaceutical Sciences&Faculty of MedicineUniversidad de ChileSantiagoChile In.tituto de Cien.ias Biomédicas Facultad de Ciencias de la SaludUniversidad Autónoma de ChileSantiagoChile

Astrocytes are the most abun.an. type of glial cell in.the cen.ral n.rvous *** in.ury an. in.lammation.astrocytes become reactive an. un.ergo morphological an. fun.tion.l *** on.their phen.typic classification.as A1 or A2,reactive astrocytes con.ribute to both n.urotoxic an. n.uroprotective respon.es,***,this bin.ry classification.does n.t fully capture the diversity of astrocyte respon.es observed across differen. diseases an. *** an.lysis has revealed that reactive astrocytes have a complex lan.scape of gen. expression.profiles,which emphasizes the heterogen.ous n.ture of their *** actively participate in.regulatin. cen.ral n.rvous system in.lammation.by in.eractin. with microglia an. other cell types,releasin. cytokin.s,an. in.luen.in. the immun. *** phosphoin.sitide 3-kin.se(PI3K)/protein.kin.se B(AKT)sign.lin. pathway is a cen.ral player in.astrocyte reactivity an. impacts various aspects of astrocyte behavior,as eviden.ed by in.silico,in.vitro,an. in.vivo *** astrocytes,in.lammatory cues trigger a cascade of molecular even.s,where n.clear factor-κB serves as a cen.ral mediator of the pro-in.lammatory ***,we review the heterogen.ity of reactive astrocytes an. the molecular mechan.sms un.erlyin. their *** highlight the in.olvemen. of various sign.lin. pathways that regulate astrocyte reactivity,in.ludin. the PI3K/AKT/mammalian.target of rapamycin.mTOR),αvβ3 in.egrin.PI3K/AKT/con.exin.43,an. n.tch/PI3K/AKT *** targetin. the in.ctivation.of the PI3K/AKT cellular sign.lin. pathway to con.rol reactive astrocytes an. preven. cen.ral n.rvous system damage,eviden.e suggests that activatin. this pathway could also yield ben.ficial *** dual fun.tion.of the PI3K/AKT pathway un.erscores its complexity in.astrocyte reactivity an. brain.fun.tion.*** review emphasizes the importan.e of employin. astrocyte-exclusive models to un.erst

关键词： in.lammation in.egrin. n.uroprotective n.urotoxic phosphatidylin.sitol 3-kin.se reactive astrocytes sign.l tran.duction Thy-1(CD90)

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Astrocytes, reactive astrogliosis, an. glial scar formation.in.traumatic brain.in.ury

引用

n.ural Regen.ration.Research 2025年第4期20卷 973-989页

作者： María Belén.Cieri Alberto Javier Ramos Laboratorio de n.uropatología Molecular IBCN UBA-CONICETFacultad de MedicinaUniversidad de Buenos AiresBuenos AiresArgentina

Traumatic brain.in.ury is a global health crisis,causin. sign.fican. death an. disability *** that follows traumatic brain.in.ury has serious con.equen.es for n.uron.l survival an. cogn.tive impairmen.s,with astrocytes in.olved in.this *** traumatic brain.in.ury,astrocytes rapidly become reactive,an. astrogliosis propagates from the in.ury core to distan. brain.*** astroglial protein. are down.egulated n.ar the traumatic brain.in.ury core,while pro-in.lammatory astroglial gen.s are *** altered gen. expression.is con.idered a pathological remodelin. of astrocytes that produces serious con.equen.es for n.uron.l survival an. cogn.tive *** addition.glial scar formed by reactive astrocytes is in.tially n.cessary to limit immun. cell in.iltration.but in.the lon. term impedes axon.l recon.ection.an. fun.tion.l *** therapeutic strategies for traumatic brain.in.ury are focused on.preven.in. acute ***,can.abin.ids,progesteron.,beta-blockers,an. cerebrolysin.demon.trate n.uroprotective ben.fits but most of them have n.t been.studied in.the con.ext of *** this review,we discuss the cell sign.lin. pathways activated in.reactive astrocytes followin. traumatic brain.in.ury an. we discuss some of the poten.ial n.w strategies aimed to modulate astroglial respon.es in.traumatic brain.in.ury,especially usin. cell-targeted strategies with miRn.s or ln.Rn.,viral vectors,an. repurposed drugs.

关键词： astrocyte glial scar in.ate immun.ty n.uroin.lammation stab in.ury Toll-like receptors

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Sex differen.es in.agin. an. in.ured brain

引用

n.ural Regen.ration.Research 2025年第10期20卷 2901-2902页

作者： Jordan.n.Williamson.Yuan.Yan. Un.versity of Illin.is Urban.-Champaign Grainger College of EngineeringDepartment of BioengineeringUrbanaILUSA Carle Foun.ation.Hospital Stephenson Family Clinical Research InstituteClinical Imaging Research CenterUrbanaILUSA Un.versity of Illin.is Urban.-Champaign Beckman Institute for Advanced Science and TechnologyUrbanaILUSA n.rthwestern.Un.versity Department of Physical Therapy and Human Movement SciencesChicagoILUSA

Backgroun.:The prevalen.e,age of on.et,an. symptomatology of traumatic brain.in.ury,stroke,an. n.urodegen.rative diseases(such as Alzheimer’s disease(AD),Parkin.on.s disease,amyotrophic lateral sclerosis,an. Hun.in.ton.s disease)differ substan.ially between.males an. *** higher prevalen.e of these brain.disorders has been.attributed to females havin. a greater lon.evity compared with *** on. of the greatest risk factors of acquired brain.in.ury(such as stroke,traumatic brain.in.ury caused by fall)an. n.urodegen.rative disease is age.

关键词： Hun.in.ton prevalen.e traumatic

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：