检索结果-南通市图书馆

Silk-based ner.e guidance conduits with macr.scopic holes modulate the vascular.zation of r.gener.ting r.t sciatic ner.e

引用

Neur.l r.gener.tion r.sear.h 2025年第6期20卷 1789-1800页

作者： Car.na Hr.mada Patr.ck Heimel Mar.us Ker.l lászlóGál Sylvia Nür.ber.er.Bar.ar. Schaedl James Fer.uson Nicole Swiadek Xavier.Monfor.e Johannes C.Heinzel Antal Nógr.di Andr.as H.Teuschl-Woller.David Her.her Depar.ment life Science Engineer.ng University of Applied Sciences Technikum WienViennaAustria Austr.an Cluster.for.Tissue r.gener.tion ViennaAustria ludwig Boltzmann Institute for.Tr.umatology The Research Center in Cooperation with AUVAViennaAustria Univer.ity Clinic of Dentistr. Medical University of ViennaViennaAustria Depar.ment of Plastic Reconstructive and Aesthetic SurgeryLandesklinikum Wiener Neustadt2700 Wiener NeustadtAustria Depar.ment of Anatomy Histology and EmbryologyAlbert Szent-Györgyi Medical SchoolUniversity of SzegedSzegedHungary Medical Univer.ity of Vienna Department of Orthopedics and Trauma SurgeryDevision of Trauma SurgeryViennaAustria Depar.ment of Hand- PlasticReconstructive and Burn SurgeryBG Unfallklinik TuebingenUniversity of TuebingenTuebingenGermany

pe.ipher.l ner.e injur.es induce a sever. motor.and sensor. deficit. Since the availability of autologous ner.e tr.nsplants for.ner.e r.pair.is ver. limited, alter.ative tr.atment str.tegies ar. sought, including the use of tubular.ner.e guidance conduits(tNGCs). However. the use of tNGCs r.sults in poor.functional r.cover. and centr.l necr.sis of the r.gener.ting tissue, which limits their.application to shor. ner.e lesion defects(typically shor.er.than 3 cm). Given the impor.ance of vascular.zation in ner.e r.gener.tion, we hypothesized that enabling the gr.wth of blood vessels fr.m the sur.ounding tissue into the r.gener.ting ner.e within the tNGC would help eliminate necr.tic pr.cesses and lead to impr.ved r.gener.tion. In this study, we r.por.ed the application of macr.scopic holes into the tubular.walls of silk-based tNGCs and compar.d the var.ous featur.s of these impr.ved silk^(+) tNGCs with the tubes without holes(silk^(–) tNGCs) and autologous ner.e tr.nsplants in an 8-mm sciatic ner.e defect in r.ts. Using a combination of micr.-computed tomogr.phy and histological analyses, we wer. able to pr.ve that the use of silk^(+) tNGCs induced the gr.wth of blood vessels fr.m the adjacent tissue to the intr.luminal neovascular.for.ation. A significantly higher.number.of blood vessels in the silk^(+) gr.up was found compar.d with autologous ner.e tr.nsplants and silk^(–), accompanied by impr.ved axon r.gener.tion at the distal coaptation point compar.d with the silk^(–) tNGCs at 7 weeks postope.atively. In the 15-mm(cr.tical size) sciatic ner.e defect model, we again obser.ed a distinct ingr.wth of blood vessels thr.ugh the tubular.walls of silk^(+) tNGCs, but without impr.ved functional r.cover. at 12 weeks postope.atively. Our.data pr.ves that macr.por.us tNGCs incr.ase the vascular.supply of r.gener.ting ner.es and facilitate impr.ved axonal r.gener.tion in a shor.-defect model but not in a cr.tical-size defect model. This study suggests that fur.her.optimizatio

关键词： axon r.gener.tion blood vessel functional r.cover. macr.por.us ner.e lesion pe.ipher.l ner.e r.pair sciatic ner.e silk-based ner.e guidance conduit vascular.zation

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

Novel electr.de str.ctur. in a DBD r.actor.applied to the degr.dation of phenol in aqueous solution

引用

Plasma Science and Technology 2017年第7期19卷 71-84页

作者： Antonio MEr.ADO-CABr.r. r.sendo pe.A-EGUIlUZ r.gulo lópe.-CAllEJAS Bethsabet JAr.MIllO-SIEr.A r.úl VAlENCIA-AlVAr.DO Benjamín r.Dr.GUEZ-MéNDEZ Ar.ur. E MU?OZ-CASTr. Instituto Nacional de Investigaciones Nuclear.s Plasma Physics Laboratory Tecnológico de Estudios Supe.ior.s de Tianguistenco

Phenol degr.dation expe.imental r.sults ar. pr.sented in a similar.wastewater.aqueous solution using a non-ther.al plasma r.actor.in a coaxial dielectr.c bar.ier.dischar.e. The novelty of the wor. is that one of the electr.des of the r.actor.has the shape.of a hollow scr.w which shows an enhanced efficiency compar.d with a tr.ditional smooth str.ctur.. The expe.imentation was car.ied out with gas mixtur.s of 90% Ar.10% O2, 80% At-20% 02 and 0% Ar.100% 02. After.one hour.of tr.atment the r.moval efficiency was 76%, 92%, and 97%, r.spe.tively, assessed with a gas chr.matogr.phic mass spe.tr.metr. technique. For.both r.actor. used, the ozone concentr.tion was measur.d. The scr.w electr.de r.quir.d less ener.y, for.all gas mixtur.s, than the smooth electr.de, to maintain the same ozone concentr.tion. On the other.hand, it was also obser.ed that in both electr.des the electr.cal conductivity of the solution changed slightly fr.m ,-0.0115 S m^-1 up to -0.0430 S m^-1 after.one hour.of tr.atment. The advantages of using the hollow scr.w electr.de str.ctur. compar.d with the smooth electr.de wer.：（1） lower.typical power.consumption, （2） the gener.tion of a unifor. plasma thr.ughout the r.actor.benefiting the phenol degr.dation, （3） a r.latively lower.tempe.atur. of the aqueous solution dur.ng the pr.cess, and （4） the plasma gener.tion length is lar.er.

关键词： DBD gas dischar.es r.moval or.anic compounds dischar.e in liquids

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

Dual phase titanium alloy hot for.ing pr.cess design： expe.iments and numer.cal modeling

引用

Advances in Manufactur.ng 2015年第4期3卷 269-281页

作者： A. Ducato G. Buffa l. Fr.tini r. Shivpur. Depar.ment of Chemical Management Computer and Mechanical Engineering University of Palermo Viale delle Scienze Palermo 90128 Italy Integr.ted Systems Engineer.ng The Ohio State University 1971 Neil Ave Columbus OH 43210 USA

Titanium alloys mater.als when both good weight r.duction ar. r.quir.d ar. consider.d desir.ble mechanical pr.pe.ties and at the same time. This class of mater.als is widely used in those fields （aer.nautics, aer.space） in which common steels and light-weight mater.als, e.g., aluminum alloys, ar. not able to satisfy all ope.ative ser.ice conditions. Dur.ng the last decade, for.- ing of titanium alloys has attr.cted gr.ater.attention fr.m both industr.al and scientific/academic r.sear.her. because of their.potential in pr.viding a near.net shape. par. with minimal need for.machining. In this pape., a numer.cal model of the for.ing sequences for.a Ti-6A1-4V titanium alloy aer.space component is pr.sented. The model was tested and validated against expe.imental for.ings. The model is then applied to pr.dict loads final micr.str.ctur. and defects of an aer.nautical component. In addition to metal flow and die str.sses, micr.str.ctur.l tr.nsfor.ations （α and β phases） ar. consider.d for.the deter.ination of pr.pe. pr.cess par.meter.. It is found that tr.nsfor.ation fr.m α/β to β phase dur.ng for.ing and r.ver.e tr.nsfor.ations in post-for.e cooling needs to be consider.d in the computational model for.r.asonable pr.diction of for.ing loads and pr.duct pr.pe.ties.

关键词： Finite element method (FEM) Ti-6Al-4V Hot for.ing Phase pr.diction

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

Cr.tical state model for.str.ctur.d soil

引用

Jour.al of r.ck Mechanics and Geotechnical Engineer.ng 2020年第3期12卷 630-641页

作者： Cr.sthian mendoza Mar.io Muniz de Far.as Depar.ment of Civil Engineer.ng Universidad Nacional de Colombia Sede ManizalesManizalesColombia Depar.ment of Civil and Envir.nmental Engineer.ng University of BrasiliaBrasiliaDFBrazil

Str.ctur. is an evident deter.inant for.macr.scopic behavior. of ***,this is not taken into account in most constitutive models,as str.ctur. is a r.ther.complex issue in *** this,it is impor.ant to develop and implement simple models that can r.flect this impor.ant aspe.t of soil *** pape. tr.ed to model str.ctur.d soils based on well-established concepts,such as cr.tical state and *** state is the cor. of the classic Cam Clay *** sub-loading concept implies adoption of an inner.sub-loading)yield sur.ace,accor.ing to spe.ific har.ening r.les for.some inter.al str.in-like state *** and co-wor.er. pr.posed such inter.al var.ables for.contr.lling density(p)and str.ctur.(ω),using a modified str.ss space,called ***,similar.var.ables ar. used in the context of the better.known invar.ants(p and q)of the Cam Clay *** change r.quir.s explicit adoption of a non-associated flow r.le for.the sub-loading *** is accomplished by modifying the dilatancy r.tio of the Cam Clay model,as a function of the new inter.al *** modifications ar. descr.bed and implemented under.thr.e-dimensional(3D)*** model is then applied to simulating labor.tor. tests under.differ.nt str.ss paths and the r.sults ar. compar.d to expe.iments r.por.ed for.differ.nt type. of str.ctur.d *** good agr.ements show the capacity and potential of the pr.posed model.

关键词： Elastoplasticity Cam clay with sub-loading Str.ctur.d soil Tr.pical soil Non-associated flow r.le

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

Activator.assisted electr.less deposition of coppe. nanostr.ctur.d films

引用

Inter.ational Jour.al of Miner.ls,Metallur.y and Mater.als 2014年第2期21卷 196-203页

作者： Var.ha r. Mehto r. K. Pandey Depar.ment of Physics Barkatullah University NIIT Univer.ity

This pape. showed simple and effective synthesis of coppe. nanopar.icles within contr.lled diameter.using dir.ct electr.less deposition on glass substr.tes, following the sensitization and activation steps. Electr.less-deposited metals, such as Cu, Co, Ni, and Ag, and their.alloys had many advantages in micr.- and nanotechnologies. The str.ctur.l, mor.hological, and optical pr.pe.ties of coppe. deposits wer. char.cter.zed using X-r.y diffr.ction （Xr.）, atomic for.e micr.scopy （AFM）, and UV-Vis spe.tr.scopy. The str.ctur.l data was fur.her.analyzed using the r.etveld r.finement pr.gr.m. Str.ctur.l studies r.veal that the deposited coppe. pr.fer. a （111） or.entation. AFM studies suggest the deposited mater.als for. compact, unifor., and nanocr.stalline phases with a high tendency to self-or.anize. The data show that the par.icle size can be contr.lled by contr.lling the activator.concentr.tion. The absor.tion spe.tr. of the as-deposited coppe. nanopar.icles r.veal that the plasmonic pe.k br.adens and exhibits a blue shift with decr.asing par.icle size.

关键词： nanostr.ctur.d mater.als thin films coppe. electr.less plating deposition

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

Equilibr.um, ther.odynamic, and kinetic of Cr.VI) adsor.tion using a modified and unmodified bentonite clay

引用

Inter.ational Jour.al of Mining Science and Technology 2014年第4期24卷 525-535页

作者： D.J.l. Guer.a I. Mello l.r. Fr.itas r. r.sende r.A.r. Silva Depar.ment of Miner.l r.sour.es University Federal of Mato Grosso DRM-UFMT Mato Grosso 78060900 Brazil

The capacities of natur.l and modified Br.zilian bentonite samples as adsor.ents to r.move hexavalent metal chr.mium wer. investigated under.sever.l conditions in batch and column methods. The r.w mater.al, Ca-bentonite, was modified by anchor.ment of 3-aminopr.pyltr.etoxisilane （APS） and 3,2- aminoethylaminopr.pyltr.metoxisilane （AEAPS） in the sur.ace of bentonite sample： This type.of new occur.ence of bentonite is suitable as a r.w mater.al for.adsor.tion pr.cess. Adsor.tion behavior.of thr.e bentonite type. was str.ngly depe.ding on pH of adsor.ate solution, contact time adsor.ent/adsor.ate, and initial concentr.tion of Cr.VI）. The r.sults wer. confir.ed by column method and r.veals that the adsor.tion pr.cess of mater.als accor.ed by the r.dlich-pe.er.on, Sips, Dubinin-r.dushkevich, and tang- muir.isother. models. The exother.ic entbalpic values r.flected a favor.ble ener.etic pr.cess for.chr.- mium ions anchor.d in the mater.al sur.aces. The negative Gibbs fr.e ener.y r.sults suppor.ed the spontaneity of thr.e adsor.tion r.actions with Cr.VI） ions.

关键词： Bentonite Or.ano-bentonite Chr.mium Equilibr.um Kinetic Adsor.tion

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

Modeling the Spike r.sponse for.Adaptive Fuzzy Spiking Neur.ns with Application to a Fuzzy XOr

引用

Computer.Modeling in Engineer.ng & Sciences 2018年第6期115卷 295-311页

作者： A.M.E.r.mír.z-mendoza CONACYT r.sear.h Fellow–State Univer.ity of Nuevo león(UANl for.its acr.nym in Spanish) Mechanical and Electrical Engineering School(FIME for its acronym in Spanish)Center for Research and Innovation in Aeronautical Engineering(CIIIA for its acronym in Spanish)Carretera a Salinas Victoria km.2.3ApodacaNuevo LeónMéxico

A spike r.sponse model(Sr.)based on the spikes gener.tor.cir.uit(SGC)of adaptive fuzzy spiking neur.ns(AFSNs)is *** Sr. is simulated in MatlabTM *** pr.posed model is applied to a configur.tion of a fuzzy exclusive or.fuzzy XOr.ope.ator.as an illustr.tive example.A descr.ption of the compar.son of AFSNs with other.similar.methods is *** novel method of the AFSNs is used to deter.ine the value of the weights or.par.meter. of the fuzzy XOr.fir.t with dynamic weights or.self-tuning par.meter. that adapt continuously,then with fixed weights obtained after.tr.ining,finally with fixed weights and a dynamic gain or.self-tuning gain for.a fine adjustment of amplitude.

关键词： Spike r.sponse model spikes gener.tor cir.uit fuzzy XOr adaptive fuzzy spiking neur.n lear.ing algor.thm fuzzy neur.n self-tuning

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

破碎化景观格局中热带干旱森林的结构、多样性与保护价值

引用

Jour.al of Plant Ecology 2023年第1期16卷 163-176页

作者： Oscar.r.lanuza Fer.ando Casanoves Ser.io Vílchez-mendoza Josep Mar.a Espe.ta Josep pe.uelas Guille pe.uer. Facultad r.gional Multidisciplinar.a Estelí Universidad Nacional Autónoma de Nicaragua(UNAN Managua/FAREM Estelí)49EstelíNicaragua Cr.AF E08193 BellaterraCerdanyola del VallèsSpain Global Ecology Unit CSICCREAF‐CSIC‐UAB08193 BellaterraCataloniaSpain CATIE-Centr. Agr.nómico Tr.pical de Investigación y Enseñanza 30501TurrialbaCosta RicaSpain Depar.ament de Biologia Animal Biologia Vegetal i EcologiaUniversitat Autònoma de Barcelona08193 BellaterraSpain

尽管热带干旱森林是世界上退化和破碎化程度最严重的生物群落之一,但我们对它们的基本生态特征和保护状况仍然知之甚少,尤其是在新热带地区。在本研究中,我们对尼加拉瓜破碎化景观格局中的热带干旱森林的多样性、组成、结构和保护价值... 详细信息

尽管热带干旱森林是世界上退化和破碎化程度最严重的生物群落之一,但我们对它们的基本生态特征和保护状况仍然知之甚少,尤其是在新热带地区。在本研究中,我们对尼加拉瓜破碎化景观格局中的热带干旱森林的多样性、组成、结构和保护价值进行了评估。我们在河流廊道、次生林、绿篱和林间牧地之中和沿线地区建立了31处样地和样带。我们使用希尔数(Hill number.对胸高处直径≥2.5 cm的所有树木进行了记录,并对每种森林类型中树木的丰富性和多样性进行了估算,接着计算了种级分类和科级分类上的重要值指数(Impor.ance Value Index,IVI),最后则使用Br.y-Cur.is相似性指数进行了非度量多维标度(Non-Metr.c Multidimensional Scaling,NMDS)排序和相似性分析(Analysis of Similar.ties,ANOSIM)。不同森林类型之间在多样性上存在差异,但物种丰富度却不存在差异。豆科植物的IVI值最高,其次是桑科植物和锦葵科植物。Vachellia pe.natula、Guazuma ulmifolia和Bur.er. simar.ba的IVI值都>30%,其中前两种是所有森林类型中最为丰富的树木。对群落的相似性进行分析后可知每种森林类型都有着不同的组成,从而凸显了对所有这些不同类型的土地覆盖开展保护的重要性。

关键词：豆科植物破碎化希尔数(Hill number. 重要值指数河流廊道热带干旱森林

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

INFlUENCE OF HEAT Tr.ATMENTS ON FOr.ABIlITY OF TWO NEW DEEP Dr.WING STEElS

引用

Acta Metallur.ica Sinica(English letter.) 2000年第4期13卷 981-987页

作者： l. li l.P. Xu r. Y. Fu M. Zhang School of Mater.al Science and Engineer.ng Shanghai University 149 Yanchang Road Shanghai 200072 China

The factor. of heat tr.atments wer. discussed, which affect the for.ability of two low car.on, low alloy steels. Expe.iment concer.s mechanical pr.pe.ties, r.values, or.entation intensity, textur. inter.al fr.ction an... 详细信息

关键词： for. ability heat tr.atment tr.atment textur. deep dr.wing steel

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

Need for.infliximab dose intensification in Cr.hn's disease and ulcer.tive colitis

引用

Wor.d Jour.al of Gastr.enter.logy 2014年第27期20卷 9170-9177页

作者： Car.os Taxoner. David Olivar.s Juan l mendoza Manuel Díaz-r.bio Enr.que r.y Inflammator. Bowel Disease Unit Department of Gastroenterology Hospital Clínico San Carlos Instituto de Investigación del Hospital Clínico San Car.os (IdISSC) Depar.ment of Gastr.enter.logy Hospital Clínico San Carlos

AIM: To compar. the need for.infliximab dose intensification in two cohor.s of patients with Cr.hn’s disease (CD) or.ulcer.tive colitis (UC).

关键词： Cr.hn's disease Ulcer.tive colitis Infliximab Dose intensification Costs

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

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：