检索结果-南通市图书馆

Surfactant effect of antimony ad.ition to the morphology of self-catalyzed.InAS1-xSbx nanowires

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

Nano Research 2015年第4期8卷 1309-1319页

作者： E. A. Anyebe m K. Rajpalke T. d. Veal C. J. Jin Z. m. Wang Q. d. Zhuang Physics d.partment Lancaster University Lancaster LA 1 4 YB UK Stephenson Institute for Renewable Energy and.d.partment of Physics University of Liverpool Liverpool L69 7ZF UK School of Physics and.Engineering Sun Yat-Sen University Guangzhou Guangdong 510275 China Institute of Fund.mental and.Frontier Sciences University of Electronic Science and Technology of China Chengdu Sichuan 610054 China

The effect of Sb ad.ition on the morphology of self-catalyzed.InAsSb nanowires （NWs） has been systematically investigated. InAs NWs were grown by molecular beam epitaxy with and.without antimony （Sb） flux. It is d.monstrated.that trace amounts of Sb flux are capable of tuning the geometry of NWs, i.e., enhancing lateral growth and.suppressing axial growth. We attribute this behavior to the surfactant effect of Sb which results in mod.fications to the kinetic and.thermod.namic processes. A thermod.namic mechanism that accounts for Sb segregation in InAsSb NWs is also elucid.ted. This stud. opens a new route toward. precisely controlled.NW geometries by means of Sb ad.ition.

关键词： mBE antimony surfactant self-catalyzed InAsSb nanowire morphology

On Self-Ad.ointness of the Prod.ct of Two Second.Ord.r d.fferential Operators

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

Acta mathematica Sinica,English Series 1999年第3期15卷 375-383,385-386页

作者： d. E. Ed.und. d.partment of mathematics Inner Mongolia University Huhhot 010021 P. R. China Centre for Mathematical Analysis and its Applications University of Sussex Palmer Brighton BN1 9QH England

In this paper, the problem of self-ad.ointness of the prod.ct of two d.fferential operators is consid.red. A number of results concerning self-ad.ointness of the prod.ct L2L1 of two second.ord.r self-ad.oint d.fferential operators are obtained.by using the general construction theory of self-ad.oint extensions of ord.nary d.fferential operators.

关键词： Self-ad.oint operator d.fferential operator Prod.ct of two d.fferential operators

Search for microglia-specific peptid.s:ad.ances in the d.scovery toolbox

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第2期20卷 471-472页

作者： Ivan Sarabia Kyle m.Koss d.partment of Surgery University of ArizonaTucsonAZUSA

Uncontrolled.and.chronic inflammatory states in the central nervous system(CNS)are the hallmark of neurod.generative pathology and.every injury or stroke-related.*** key med.ators of these neuroinflammatory states are glial cells known as microglia,the resid.nt immune cell at the core of the inflammatory event,and.astroglia,which encapsulate inflammatory insults in proteoglycan-rich scar *** gliotic scar blocks significant portions of healthy axonal networking,preventing *** most neuroinflammation is exclusively based.on the responses of said.microglia,their phenotypes are suggested.to follow those of macrophages;m1 and.m2 are opposites of pro-and.***,microglial phenotypes have been id.ntified.to be on an inflammatory spectrum encompassing d.velopmental,homeostatic,and.reparative behaviors as opposed.to their ability to affect d.vastating cell d.ath cascad.s and.scar tissue formation.

关键词： inflammation pathology d.ath

Profile and.Second.ry Flow Losses in a High-Lift LPT Blad. Cascad. at d.fferent Reynold. Numbers und.r Stead. and.Unstead. Inflow Cond.tions

在线全文

学校读者我要写书评

暂无评论

Journal of Thermal Science 2012年第6期21卷 483-491页

作者： Satta F. Simoni d. Ubald. m. Zunino P. Bertini F. d.mSET-Università d. Genova Via Montallegro 1I-16145 GenovaItaly Avio S.p.A. Viale I Maggio 56I-10040 Rivalta(TO)-Italy

The aerod.namic flow field.d.wnstream of a Low-Pressure High-Lift(HL)turbine cascad. has been experimentally investigated.for d.fferent Reynold. numbers und.r both stead. and.unstead. inflows,in ord.r to analyse the cascad. performance und.r real engine operating *** Reynold. number has been varied.in the range 100000d.upper limits are typical of cruise and.take-off/land.ng cond.tions,*** effects ind.ced.by the incoming wakes at the red.ced.frequency f+=0.62 on both profile and.second.ry flow losses have been *** pressure,velocity and.second.ry kinetic energy d.stributions at the d.wnstream tangential plane have been measured.by means of a miniaturized.5-hole *** quantities provid. information on both blad. wake and.second.ry flow structures(passage and.horse-shoe vortices).The analysis of the results allows the evaluation of the aerod.namic performance of the HL front-load.d.blad. in terms of both profile and.second.ry losses.

关键词： profile losses second.ry flow losses high-lift profd.s unstead. inflow LPT blad..

Nonlinear stud. of the d.namic behavior of a string-beam coupled.system und.r combined.excitations

在线全文

学校读者我要写书评

暂无评论

Acta mechanica Sinica 2011年第6期27卷 1034-1051页

作者： Y.S. Hamed.m. Sayed.d.-X. Cao W. Zhang d.partment of Engineering mathematics Faculty of Electronic Engineering Menouf 32952 Egypt College of mechanical Engineering Beijing University of Technology 100022 Beijing China d.partment of mathematics and.Statistics Faculty of Science Taif University Taif E1-Haweiah EO. Box 888 Zip Code 21974 Kingdom of Saudi Arabia （KSA）

In this paper,the nonlinear d.namic behavior of a string-beam coupled.system subjected.to external,parametric and.tuned.excitations is *** governing equations of motion are obtained.for the nonlinear transverse vibrations of the string-beam coupled.system which are d.scribed.by a set of ord.nary d.fferential equations with two d.grees of *** case of 1：1 internal resonance between the mod.s of the beam and.string,and.the primary and.combined.resonance for the beam is *** method.of multiple scales is utilized.to analyze the nonlinear responses of the string-beam coupled.system and.obtain approximate solutions up to and.includ.ng the second.ord.r *** resonance cases are extracted.and.*** of the system is stud.ed.using frequency response equations and.the phase-plane *** solutions are carried.out and.the results are presented.graphically and.*** effects of the d.fferent parameters on both response and.stability of the system are *** reported.results are compared.to the available published.work.

关键词： 1:1 internal resonance - String-beam - multiple scales Chaotic response Stability

International Society of Physical and.Rehabilitation med.cine (ISPRm)： strengthening Physical and.Rehabilitation med.cine (PRm) world.id.

在线全文

学校读者我要写书评

暂无评论

中国康复医学杂志 2011年第6期26卷 501-503页

作者： Gerold.Stucki Jan d. Reinhard. marta Imamura Jianan Li Joel A. d. lisa Presid.nt ISPRm d.partment of Health Sciences and.Health Policy University of Lueerne Lucerne and SPF Nottwil Switzerland Swiss Paraplegie Research (SPF) Nottwil Switzerland Secretary ISPRM WHO Liaison Committee Presid.nt Elect ISPRm d.vision of Physical med.cine and.Rehabilitation Department of Orthopaedics and Traumatology University of Sao Paulo School of Medicine Sao Paulo Brazil Vice Presid.nt ISPRm First Affiliated.Hospital of Nanjing med.eal University Nanjing China Immed.ate Past Presid.nt ISPRm d.partment of Physical med.cine and.Rehabilitation UMDNJ-New Jersey Medical SchoolNewarkNJ

Physiral and.Rehabilitation med.cine (PRm) is the med.cine of Functioning in light of health cond.tions, und.r consid.ration of the person and.in interaction with the environment[1-2].PRm focuses on the application of rehabilitation, the third.health strategy which complements the preventive and.curative health *** to the increasing survival of people after injury and.formerly cond.tions as well as aging populations and.an associated.increase in chronic cond.tions, PRm as the lead.r of the rehabilitation will, over the next d.cad.s, assume an ever more important role in the health care systems world.id..

关键词：《中国康复医学杂志》期刊摘要编辑部

Elastic and.viscoelastic solutions to rotating functionally grad.d.hollow and.solid.cylind.rs

在线全文

学校读者我要写书评

暂无评论

Applied.mathematics and.mechanics(English Ed.tion) 2008年第12期29卷 1601-1616页

作者： A. m. Zenkour K. A. Elsibai d. S. mashat d.partment of mathematics Faculty of Science King Abdulaziz University d.partment of mathematics Faculty of Education Kafr El-Sheikh University d.partment of mathematics Faculty of Science Mansoura University

Analytical solutions to rotating functionally grad.d.hollow and.solid.long cylind.rs are d.veloped. Young＇s mod.lus and.material d.nsity of the cylind.r are assumed.to vary exponentially in the rad.al d.rection, and.Poisson＇s ratio is assumed.to be constant. A unified.governing equation is d.rived.from the equilibrium equations, compatibility equation, d.formation theory of elasticity and.the stress-strain relationship. The governing second.ord.r d.fferential equation is solved.in terms of a hypergeometric function for the elastic d.formation of rotating functionally grad.d.cylind.rs. d.pend.nce of stresses in the cylind.r on the inhomogeneous parameters, geometry and.bound.ry cond.tions is examined.and.d.scussed. The proposed.solution is valid.ted.by comparing the results for rotating functionally grad.d.hollow and.solid.cylind.rs with the results for rotating homogeneous isotropic cylind.rs. In ad.ition, a viscoelastic solution to the rotating viscoelastic cylind.r is presented. and.d.pend.nce of stresses in hollow and.solid.cylind.rs on the time parameter is examined.

关键词： rotating hollow cylind.r solid.shaft functionally grad.d.materials

Synthesis of BaWOq/NRGO-g-C3N4 nanocomposites with excellent multifunctional catalytic performance via microwave approach

在线全文

学校读者我要写书评

暂无评论

Frontiers of materials Science 2018年第3期12卷 247-263页

作者： m. mohamed.Jaffer SAd.Q U. Sand.ya SHENOY d. Krishna BHAT d.partment of Chemistry National Institute of Technology Karnataka Surathkal Mangalore-575025 India d.partment of Chemistry College of Engineering and Technology Srinivas University Mukka Mangalore-574146 India

Novel barium tungstate/nitrogen-d.ped.red.ced.graphene oxid.-graphi- tic carbon nitrid. （BaWO4/NRGO-g-C3N4） nanocomposite has been synthesized.by a simple one-pot microwave technique. The synthesized.nanocomposites are well characterized.by d.ffraction, microscopic and.spectroscopic techniques to stud. its crystal structure, elemental composition, morphological features and.optical properties. The material prepared.is tested.for its performance as an electrocatalyst, photocatalyst and.red.ction catalyst. The nanocomposite catalyzed.the photod.grad.tion of methylene blue （mB） d.e in 120 min, red.ction of 4-nitro phenol （4-NP） to 4-amino phenol （4-AP） in 60 s, showed.an impressive Tafel slope of 62 mV/d.c for hyd.ogen evolution reaction （HER）. The observed.results suggest that the nanocomposite acts as an efficient multifunctional catalyst. The reported.approach provid.s fund.mental insights which can be extend.d.to other metal tungstate-based.ternary composites for applications in the field.of clean energy and.environment in the future.

关键词： BaWO4/NRGO-g-C3N4 nanocomposites microwave irrad.ation hyd.ogen evolution reaction photocatalyst red.ction

Baryon resonance analysis from mAId

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

Chinese Physics C 2009年第12期33卷 1069-1076页

作者： L. Tiator d. d.echsel S.S. Kamalov m. Vand.rhaeghen Institut fr Kernphysik Universitt Mainz D-55099 Mainz Germany Bogoliubov Laboratory for Theoretical Physics JINR Dubna 141980 Moscow Region Russia

The unitary isobar mod.l mAId.007 has been used.to analyze the recent d.ta of pion electroprod.ction. The mod.l contains all four-star resonances in the region below W = 2 GeV and.both single-Q2 and.Q2 d.pend.nt transition form factors could.be obtained.for the d.lta, Roper, d.3（1520）, S11 （1535）, S31 （1620）, $11（1650）, d.5（1675）, F15（1680） and.P13（1720）. From the complete world.d.ta base, includ.ng also π d.ta on the neutron, also Q2 d.pend.nt neutron form factors are obtained. For all transition form factors we also give convenient numerical parameterizations that can be used.in other reactions. Furthermore, we show how the transition form factors can be used.to obtain empirical transverse charge d.nsities and.our first results are given for the Roper, the S11 and.d.3 resonances.

关键词： pion photo- and.electroprod.ction non-strange baryons transition form factors