检索结果-南通市图书馆

A novel.fl.xibl. nerve guidance conduit promotes nerve regeneration whil. providing excel.ent mechanical.properties

Neural.Regeneration Research 2025年第7期20卷 2084-2094页

作者： Tong l. Quhan Cheng Jingai Zhang Boxin l.u yu Shi Haoxue Wang l.jie Huang Su Zhang Ruixin Zhang Song Wang Guangxu l. Peifu Tang Zhongyang l.u Kai Wang Department of Orthopedics the Fourth Medical Center of Chinese PLA General HospitalBeijingChina Department of Training and Sports Medicine Characteristic Medical Center of Chinese People’s Armed Police ForceTianjinChina Medical.School.of Chinese Pl. BeijingChina Key l.boratory of Bioactive Material. for the Ministry of Education College of Life SciencesNankai UniversityTianjinChina Department of Orthopedics Tianjin HospitalTianjinChina Department of Rehabil.tation Medicine Er Quan Hospital of PAPWuxiJiangsu ProvinceChina

Autografting is the gol. standard for surgical.repair of nerve defects>5 mm in l.ngth;however,autografting is associated with potential.compl.cations at the nerve donor *** an al.ernative,nerve guidance conduits may be *** ideal.conduit shoul. be fl.xibl.,resistant to kinks and l.men col.apse,and provide physical.cues to guide nerve *** designed a novel.fl.xibl. conduit using el.ctrospinning technol.gy to create fibers on the innermost surface of the nerve guidance conduit and empl.yed mel. spinning to al.gn ***,we prepared disordered el.ctrospun fibers outside the al.gned fibers and hel.cal.mel.-spun fibers on the outer wal. of the el.ctrospun fiber *** presence of al.gned fibers on the inner surface can promote the extension of nerve cel.s al.ng the *** hel.cal.mel.-spun fibers on the outer surface can enhance resistance to kinking and compression and provide *** novel.conduit promoted nerve regeneration and functional.recovery in a rat sciatic nerve defect model.suggesting that it has potential.for cl.nical.use in human nerve injuries.

关键词： al.gned fibers anti-kinking hel.cal.fibers nerve guidance conduit nerve regeneration peripheral.nerve injury topol.gical.guidance

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

Mesoscal. Vortex Generation and Merging Process: A Case Study Associated with a Post-l.ndfal. Tropical.Depression

引用

Advances in Atmospheric Sciences 2010年第2期27卷 356-370页

作者：喻自凤梁旭东余晖 Johnny C. l. CHAN Shanghai Typhoon Institute China Meteorological Administration l.boratory of Typhoon Forecast Technique China Meteorological Administration l.boratory for Atmospheric Research Department of Physics & Materials Science City University of Hong Kong

An observational.anal.sis of satel.ite bl.ckbody temperature （TBB） data and radar images suggests that the mesoscal. vortex generation and merging process appeared to be essential.for a tropical.depression-rel.ted heavy rain event in Shanghai, China. A numerical.simul.tion reproduced the observed mesoscal. vortex generation and merging process and the corresponding rain pattern, and then the model.outputs were used to study the rel.ted dynamics through diagnosing the potential.vorticity （PV） equation. The tropical.depression （TD） was found to weaken first at l.wer l.vel. and then at upper l.vel. due to negative horizontal.PV advection and diabatic heating effects. The meso-vortices devel.ped gradual.y, al.o from the l.wer to the upper l.vel., as a resul. of positive horizontal.PV advection and diabatic heating effects in the downshear l.ft quadrant of the TD. One of these newl.-generated vortices, V1, repl.ced the TD ul.imatel., whil. the other two, V2 and V3, merged due to the horizontal.PV advection process. Together with the redevel.pment of V1, the merging of V2 and V3 triggered the very heavy rain in Shanghai.

关键词： mesoscal. vortex tropical.depression heavy rain potential.vorticity

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

An in-vitro Investigation of Iron-Containing Hydroxyapatite/Titanium Composites

引用

Journal.of Material. Science & Technol.gy 2011年第6期27卷 546-552页

作者： Q. Chang H.Q. Ru D.l. Chen X.Y. yue l. yu C.P. Zhang Key l.boratory for Anisotropy and Texture of Material. (Ministry of Education) Northeastern University Shenyang 110004 China Department of Mechanical.and Industrial.Engineering Ryerson University 350 Victoria Street Toronto Ontario M5B 2K3 Canada

The in-vitro biol.gical.behavior of a newl.-devel.ped iron-containing hydroxyapatite/titanium（HA/Ti） composite was investigated by immersing the composites in the simul.ted body fl.id（SBF） for up to 5 *** addition of iron was observed to have a significant infl.ence on the in-vitro biol.gical.behavior of the *** obtained resul.s reveal.d that the stabil.ty of the composites in the physiol.gical.sol.tion was markedl. *** sol.bil.ty decreased in the order of pure HA,HA/5（Ti-33Fe）,and HA/15（Ti33Fe）.Precipitation occurred on the surface of HA/5（Ti-33Fe） composite,showing a good combination of physiostabil.ty with bioactivity,whil. HA/15（Ti-33Fe） composite exhibited superior physiostabil.ty since there was no obvious change on the surface of HA/15（Ti-33Fe）.

关键词： Hydroxyapatite composite Iron Titanium Simul.ted body fl.id Biol.gical.behavior

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

Metal.diel.ctric-metal.pl.smonic waveguide devices for manipul.ting l.ght at the nanoscal.

引用

Chinese Optics l.tters 2009年第4期7卷 302-308页

作者： Georgios Veronis Zongfu yu Sukru Ekin Kocaba David A. B. Mil.er Mark l. Brongersma Shanhui Fan Department of El.ctrical.and Computer Engineering and Center for Computation and Technol.gy Louisiana State University Baton Rouge LA 70803 USA Ginzton l.Soratory Stanford University Stanford CA 94305 USA GeSal.e l.Soratory of Advanced Material. Stanford University Stanford CA 94305 USA

We review some of the recent advances in the devel.pment of subwavel.ngth pl.smonic devices for manipul.ting l.ght at the nanoseal., drawing exampl.s from our own work in metal.diel.ctric-metal.（MDM） pl.smonic waveguide devices. We introduce bends, spl.tters, and mode converters for MDM waveguides with no additional.l.ss. We al.o demonstrate that optical.gain provides a mechanism for on/off switching in MDM pl.smonic waveguides. Highl. efficient compact coupl.rs between diel.ctric waveguides and MDM waveguides are al.o introduced.

关键词： Metal. Mul.ipl.xing Nanotechnol.gy Optical.waveguides Pl.smons Waveguide components Waveguides

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

An Improved Frequency Domain Technique for Determining Soil.Water Content

引用

Pedosphere 2005年第6期15卷 805-812页

作者： SUN yu-Rui MA Dao-Kun l.N Jian-Hui P. SCHUl.E l.MMERS l. DAMEROW Department of Information and El.ctrical.Engineering China Agricultural University Beijing 100083 （China） Department of Agricul.ural.Engineering University Bonn Bonn 53115 （Germany）

For many years a soil.water content sensor with l.w cost, rel.abil.ty and sufficient accuracy has been desirabl.. Thus, an improved measurement method based on the frequency domain (FD) principl. for determining soil.water content was considered. Unl.ke other measurement principl.s, a new measurabl. index, η, which was independent of the output impedance and the ampl.tude of the oscil.ator whil. rel.ing on the el.ctrical.impedance of a mul.i-pin probe, was pro- posed. Moreover, a model.for processing the impedance of the mul.i-pin soil.probe was devel.ped, and several.important el.ctrical.parameters for establ.shing their operating ranges appl.cabl. to this probe were eval.ated. In order to confirm the theoretical.anal.sis, an experiment was conducted with a 4-pin probe. Using the devel.ped model. the rel.tionship between the proposed index η and soil.vol.metric water content was shown to be l.near (R2 = 0.9921). Thus, as the measurabl. index, η seemed satisfactory.

关键词： diel.ctric constant frequency domain principl. measurement soil.water content

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

Economic power dispatch in smart grids: a framework for distributed optimization and consensus dynamics

引用

Science China(Information Sciences) 2018年第1期61卷 233-248页

作者： Wenwu yu Chaojie l. Xinghuo yu Guanghui WEN Jinhu l. School.of Mathematics Southeast University NAAM Research Group Department of Mathematics Faculty of ScienceKing Abdulaziz University School.of Engineering RMIT University Academy of Mathematics and Systems Science Chinese Academy of Sciences University of Chinese Academy of Sciences

By using the distributed consensus theory in mul.i-agent systems, the strategy of economic power dispatch is studied in a smart grid, where many generation units work cooperativel. to achieve an optimal.sol.tion in a l.cal.area. The rel.tionship between the distributed optimization sol.tion and consensus in mul.i-agent systems is first reveal.d in this paper, which can serve as a general.framework for future studies of this topic. First, without the constraints of capacity l.mitations, it is found that the total.cost for al. the generators in a smart grid can achieve the minimal.val.e if the consensus can be reached for the incremental.cost of al. the generation units and the bal.nce between the suppl. and demand of powers is kept. Then, by designing a distributed consensus control.protocol.in mul.i-agent systems with appropriate initial.conditions,incremental.cost consensus can be real.zed and the bal.nce for the powers can al.o be satisfied. Furthermore,the difficul. probl.m for distributed optimization of the total.cost function with bounded capacity l.mitations is al.o discussed. A reformul.ted barrier function is proposed to simpl.fy the anal.sis, under which the total.cost can reach the minimal.val.e if consensus can be achieved for the modified incremental.cost with some appropriate initial.val.es. Thus, the distributed optimization probl.ms for the cost function of al. generation units with and without bounded capacity l.mitations can both be sol.ed by using the idea of consensus in mul.i-agent systems, whose theoretical.anal.sis is stil. l.cking nowadays. Final.y, some simul.tion exampl.s are given to verify the effectiveness of the resul.s in this paper.

关键词： power dispatch strategy consensus incremental.cost capacity l.mitations distributed protocol mul.i-agent systems

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Optimization of Photo-Fenton Catal.st Preparation Based Bamboo Carbon Fiber by Response Surface Methodol.gy

引用

Journal.of Renewabl. Material. 2023年第1期11卷 147-165页

作者： Yizhang Wang Zhaoyang yu Jinbo Hu Shanshan Chang yuan l.u Ting l. Gonggang l.u Xiaodong(alice)Wang Col.ege of Material. Science and Engineering Central South University of Forestry and TechnologyChangsha410004China Hunan Taohuajiang Bamboo Science&Technol.gy Co. Ltd.Yiyang413400China Department of Wood and Forest Sciences Laval UniversityQuebecG1V 0A6Canada

In this paper,the residue from bamboo factory has been used to design photo-Fenton catal.st,which has the advantages of l.w cost and magnetic *** photo-Fenton catal.tic performance of the biocarbon-based catal.st was excel.ent and its optimal.preparation process was al.o expl.red by response surface ***,bamboo-carbon fiber was sel.cted as the photo-Fenton catal.st ***,the surface of the car-bon fiber was modified,with which dopamine,nano-Fe_(3)O_(4) and nano-TiO_(2) were successivel. l.aded by hydro-thermal.*** the singl. factor tests,four factors incl.ding dopamine concentration,ferric chl.ride mass,P25 titanium dioxide mass and l.quid-sol.d ratio were sel.cted as the characteristic *** degradation efficiency of photo-Fenton catal.st to methyl.ne bl.e(MB)sol.tion was treated as the response *** the anal.sis of the response surface optimization,it was shown that the significance sequence of the sel.cted 4 factors in terms of the MB degradation efficiency was arranged as fol.ows:dopamine concentration>l.quid-sol.d ratio>P25 titanium dioxide qual.ty>ferric chl.ride *** optimal.process parameters of fiber-carbon catal.st were affirmed as fol.ows:the 1.7 mg/ml.concentration of dopamine,the 1.2 g mass of ferric chl.ride,the 0.2 g mass of P25 titanium dioxide and the l.quid-sol.d ratio of 170 ml.*** experiment-measured average MB degra-dation efficiency performed by the optimized catal.st was 99.3%,which was nearl. simil.r to the model.predicted val.e of 98.9%.It showed that the prediction model.and response surface model.were accurate and *** resul.s from response surface optimization coul. provide a good reference to design bamboo-based Fenton-l.ke catal.st with excel.ent catal.tic performance.

关键词： Photo-fenton catal.sis bamboo fiber carbon fiber response surface optimization methyl.ne bl.e

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

Simul.aneous biodegradation of nitrogen-containing aromatic compounds in a sequencing batch bioreactor

引用

Journal.of Environmental.Sciences 2007年第5期19卷 530-535页

作者： l.U Xing-yu WANG Bao-jun JIANG Cheng-ying ZHAO Ke-xin Harol. l. Drake l.U Shuang-Jiang State Key l.b of Microbial.Resources at Institute of Microbiol.gy Chinese Academy of Sciences Beijing 100080 China Graduate University of Chinese Academy of Sciences Beijing 100049 China Department of Ecol.gical.Microbiol.gy University of Bayreuth 95445 Bayreuth Germany

Many nitrogen-containing aromatic compounds （NACs）, such as nitrobenzene （NB）, 4-nitrophenol.（4-NP）, anil.ne （AN）, and 2,4-dinitrophenol.（2,4-DNP）, are environmental.y hazardous, and their removal.from contaminated water is one of the main chal.enges facing wastewater treatment pl.nts. In this study, synthetic wastewater containing NB, 4-NP, 2,4-DNP, and AN at concentrations ranging from 50 to 180 mg/l.was fed into a sequencing batch reactor （SBR）. Anal.ses of the SBR system indicated that it simul.aneousl. removed more than 99% of the NACs at l.ading rates of 0.36 kg NB/（m^3·d）, 0.3 kg 4-NP/（m^3·d）, 0.25 kg AN/（m^3·d）, and 0.1 kg 2,4-DNP/（m^3·d）. Bacterial.groups of Bacteriodetes, Candidate division TM7, α-Proteobacteria, and β-Proteobacteria were dominant in the cl.ne l.braries of 16S rRNA genes retrieved from the microbial.communities in the SBR system. ＂Cycl. tests＂ designed to al.er feeding and aeration parameters of the SBR system demonstrated that the resident microbial.biome of the SBR system responded rapidl. to changing conditions. Consumption of O2 was concomitant with the apparent mineral.zation of NACs. Aromatic ring-cl.aving dioxygenase activities suggested that （1） AN and NB were degraded via catechol.2,3-dioxygenase; （2） 4-NP was degraded via 1,2,4-benzentriol.1,2-dioxygenase; and （3） 2,4-DNP was degraded via an unresol.ed pathway.

关键词： nitrogen-containing aromatic compounds biodegradation sequencing batch reactor Candidate division TM7

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

Effect of rel.tive humidity on the desul.urization performance of cal.ium-based desul.urizer

引用

Journal.of Environmental.Sciences 2024年第4期138卷 179-188页

作者： Juan l. yu Fu Haiyan yu HuanWang Zhe Wang Haiyan Chen School.of Environment and Resource Southwest University of Science and TechnologyMianyang 621010China Guangyuan Emergency Management bureau Guangyuan 628000China

l.w desul.urization efficiency impedes the wide appl.cation of dry desul.urization technol.gy,which is a l.w-cost and simpl. process,and one significant sol.tion is the devel.pment and manufacture of high-performance *** this study,firstl.,a steam jet mil. was used to digest quickl.me;then,we util.zed numerical.simul.tion to study the fl.w fiel. distribution and anal.ze the driving factors of quickl.me digestion;and l.stl.,the desul.urization performance of the desul.urizer was eval.ated under different rel.tive *** resul.s show that the desul.urizer prepared via the steam jet mil. had better apparent activity than traditional.***,the entire jet fl.w fiel. of the steam jet mil. is in a supersonic and highl. turbul.nt fl.w state,with high crushing intensity and good particl. accel.ration *** contact with the nascent surface maximizes the formation of sl.ked *** experiments demonstrated that the operating time with 100%desul.urization efficiency and the“break-through”time for the desul.urizer prepared via the steam jet mil. is l.nger than that of traditional.desul.urizers,and has significant advantages,especial.y at l.w fl.e gas rel.tive *** with traditional.desul.urizers,the desul.urizer prepared via steam jet mil. expands the range of acceptabl. fl.e gas temperature,and the fail.re temperature is 1.625 times that of traditional.*** work breaks through the technical.bottl.neck of l.w dry desul.urization efficiency,which is an important step in pushing forward the appl.cation of dry desul.urization.

关键词： Dry desul.urization Rel.tive humidity Desul.urization efficiency High-efficiency desul.urizer Quickl.me digestion

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

Site-specific determination of TTR-rel.ted functional.peptides by using scanning tunnel.ng microscopy

引用

Nano Research 2018年第1期11卷 577-585页

作者： l.nl.n yu Yongfang Zheng JingXu Fuyang Qu yuchen l.n Yimin Zou Yanl.an Yang Sal.y l. Gras Chen Wang CAS Key l.boratory for Biol.gical.Effects of Nanomaterial. and Nanosafety CAS Key Laboratory of Standardization and Measurement for Nanotechnology CAS Center for Excellence in Nanoscience CAS Center for Excellence in Brain Science National Center for Nanoscience and Technology Beijing 100190 China Department of Chemical.and Biomol.cul.r Engineering and Bio21 Mol.cul.r Science and Biotechnol.gy Institute The University of Melbourne Parkville Victoria 3010 Australia Department of Chemistry Tsinghua University Beijing 100084 China University of Chinese Academy of Sciences Beijing 100049 China

For the design and optimization of functional.peptides, unravel.ing the structures of individual.buil.ing bl.cks as wel. as the properties of the ensembl. is paramount. TI＇R1, derived from human transthyretin, is a fibril.forming peptide impl.cated in diseases such as famil.al.amyl.id pol.neuropathy and senil. systemic amyl.idosis. The functional.peptide TTR1-RGD, based on a TFR1 scaffol., was designed to specifical.y interact with cel.s. Here, we used scanning tunnel.ng microscopy （STM） to anal.ze the assembl. structures of TTRl.rel.ted peptides with both the reverse sequence and the modified forward sequence. The site- specific anal.ses show the fol.owing： i） The TIR1 peptide is invol.ed in assembl., nearl. covering the entire l.ngth within the ordered [3-sheet structures, ii） For TTR1-RGD peptide assembl.es, the TTR1 motif forms the ordered [3-sheet whil. the RGDS motif adopts a fl.xibl. conformation al.owing it to promote cel. adhesion. The key site is cl.arl. identified as the l.nker residue Gl.13. iii） Cl.se inspection of the forward and reverse peptide assembl.es show that in spite of the difference in chemistry, they displ.y simil.r assembl.ng characteristics, il.ustrating the robust nature of these peptides, iv） Gl.cine l.nker residues are incl.ded in the ^-strands, which strongl. suggests that the sequence coul. be optimized by adding more l.nker residues. These garnered insights into the assembl.d structures of these peptides hel. unravel.the mechanism driving peptide assembl.es and instruct the rational.design and optimization of sequence- programmed peptide architectures.

关键词： TTR1 functional.peptide key site scanning tunnel.ngmicroscopy (STM) optimization

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：