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简介：Electro-sparkdepositionhasbeencarriedoutonthe35CrMosteelbyfillingandrestoringthesimulatedslotspecimens,andcontinuoussurfacecoatingwithextralowporositywasobtainedwithproperparameters.Themicrostructuretransformationandinterfacebehaviorofdepositedjointwereobservedandanalyzed.Itshowsthatatransitionregionwith15μmindepthwasobtainedbetweenbasemetalanddepositedmetal,andmetallurgicalbondingwasachievedbetweenrestoredbasemetalanddepositioncoating.

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简介：Byanoveltechnique-cathodicmicro-arcelectro-deposition(CMED),ZrO2coatingsweredepositedonanFeCrAlalloy.ExperimentalresultsshowthatthenecessaryconditionsforobtainingZrO2coatingsaretoapplyapulsepeakvoltageoveracriticalvalueandaddmoderateamountsofZrO2colloidalparticlesandZr(NO3)4intheequeoussolution.Theas-depositedcoatingsareporousbecausehydrogen,water,andothervaporsaregeneratedandreleasedfromthecoatingstothesolutionduringthesparkreaction.ThecoatingscontainmonoclinicandtetragonalcrystallineZrOwithcertaindegreeofamorphousstructure.TheprocessingparametersandmechanismofCMEDwerediscussed.

简介：Objective：Toobservetheeffectofelectro-scalpacupunctureonglucosemetabolismofcerebralregionsinvolvingmentalactivityinhealthypeople.Methods:Atotalof6casesofvolunteerhealthysubjects(3malesand3females)ranginginagefrom22to36yearsweresubjectedtothisstudy.Changesofcerebralglucosemetabolismbeforeandafterelectro-scalpacupuncturewereobservedbyusingpositronemissiontomography(PET)andsemi-quantifyinganalysismethod.Electro-scalpacupuncturestimulation(50Hz,2rnA)ofMiddleLineofVertex(Dingzhongxian,顶中线,MS5),MiddleLineofForehead(Ezhongxian,额中线,MS1)andbilateralLateralLine1ofForehead(Epangyixian,额旁一线,MS2)wasadministeredfor30minutes.Thencerebralregionsofinterest(ROIs)werechosenandtheiraverageglucosemetabolismlevels(radioactivityof18fluorinedeoxyglucose)wereanalyzed.Results：Afteradministrationofelectro-scalpacupuncture,theglucosemetabolismlevelsinbilateralfrontallobesandbilateralcaudatenuclei,leftcingulategyrusandrightcerebellumincreasedsignificantlyincomparisonwiththoseofprestimulation(P<0.05).Conclusion:Electro-scalpacupunctureofMS1,MS2andMS5canincreasetheglucosemetabolismofcertaincerebralregionsinvolvingmentalactivityinhealthysubjects.

简介：Inthisstudy,anelectro-mechanicalvalve(EMV)systemfortheintakevalveofafourstroke,singlecylinder,overheadvalveandsparkignition(SI)enginewasdesignedandconstructed.AnenginewiththeEMVsystemandastandardengineweretestedtoobservetheeffectsoftheEMVonengineperformanceandemissionsatdifferentspeedsunderfullload.TheEMVengineshowedimprovedenginepower,enginetorqueandbreakspecificfuelconsumption(BSFC).A66%decreaseinCOemissionswasalsoobtainedwiththeEMVsystem,buthydrocarbons(HC)andNOxemissionsincreasedby12%and13%respectively.

简介：Anon-linearoptical(NLO)materialwassynthesizedbymeansofasimplemethod.Thismaterialcanbeappliedinelectro-optical(EO)devices,suchasEOswitchesandmodulators.TheDisperseRed1(DR1)wasdopedinpolymethyl-methacrylate-co-glycidylmethacrylate(PMMA-co-GMA)astheNLOactivechromophore.Thesynthesisprocessandmaterialstructurewereexpressed.Thethermalproperties,surfacemorphologyandopticalcharacteristicsofthematerialwereinvestigatedbymeansofdifferentialscanningcalorimetry(DSC),thermogravimetricanalysis(TGA),atomicforcemicroscopy(AFM),andm-linestechnique.Usingthereflectiontechnique,thevalueoftheelectro-opticalcoefficientγ33wasmeasuredas11pm/Vatawavelengthof1310nm.AnEOswitchwithnanosecondresponsebasedonthismaterialhasbeenfabricated.

简介：Electro-hydraulicimpulsewater-airmixingjetbywhichthequalityofmetalmaterialscanbeimprovedisdescribedinthispaper.Theexperimentalresultsprovedthatthehardnessandthemicro-hardnessofthesurfacelayerofmetalmaterialscanbeimprovedwiththismethod,forexample,themicrohardnessofCrWMncanbeincreasedby35.62percent.

简介：Atheoreticaldesignispresentedfora1×Mwavelength-selectiveswitch（WSS）thatroutesanyoneofNincomingwavelengthsignalstoanyoneofMoutputports.Thisplanaron-chipdevicecomprisesofa1×Ndemultiplexer,agroupofNswitching'trees'actuatedbyelectro-opticalorthermo-opticalmeans,andanM-foldsetofN×1multiplexers.Treesutilize1×2switches.TheWSSinsertionlossisproportionalto(log2（M+N+1）)Alongwithcrosstalkfromtrees,crosstalkispresentateachcross-illuminatedwaveguideintersectionwithintheWSS,andthereareatmostN-1suchcrossingsperpath.TheselossandcrosstalkpropertieswilllikelyplaceapracticallimitofN=M=16upontheWSSsize.Byconstrainingthe1×2switchingenergyto1fJ∕bit,wefindthatresonant,narrowband1×2switchesarerequired.The1×2devicesproposedherearenanobeamMach–Zehndersandasymmetriccontra-directionalcouplerswithgratingassistance.

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简介：为有在出现在所有团中的控制输入隧道和参数无常的时间延期的电镀物品水力的激活的结构的系统的一个类的柔韧的活跃颤动控制的问题，抑制并且僵硬矩阵在这份报纸被调查。由介绍一个线性变化参数，首先，非线性的系统被描述为变化的一个线性参数(LPV)模型。基于这个LPV模型，第二，为asymptotically要稳定的系统的一个基于LMI的条件被推出。由解决这些LMI，一个参数依赖者控制器为与骚乱变细的规定水平稳定的closedloop系统被建立。条件也被扩大到不明确的案例。最后，一些数字模拟表明建议控制器的令人满意的表演。

简介：A2×2cross/barpolymerelectro-optic(EO)routingswitchisproposed,whichiscomposedoftwopassivechannelwaveguidesandtwoactiveEOpolymermicroringswithbendingradiusofonly13.76μm.Detailedstructure,theoryandformulationareprovidedtocharacterizetheoutputpoweroftheswitch.Forobtainingfundamentalmodepropagation,smallbendinglossandphase-matchingbetweenchannelwaveguideandmicroringresonator(MRR)waveguide,thestructuralparametersareoptimizedunderthewavelengthof1550nm.Analysesandsimulationsonoutputpowerandoutputspectraindicatethataswitchingvoltageof5Visdesiredtorealizetheexchangebetweencrossstateandbarstate,thecrosstalkundercrossstateandthatunderbarstateareabout28.8dBand39.9dB,respectively,andtheinsertionlossesunderthesetwostatesareabout2.42dBand0.13dB,respectively.ComparedwithourfourEOswitchesreportedbefore,thisdevicepossessesultra-compactsizeof0.233mm×0.233mmaswellaslowcrosstalkandinsertionloss,andthereforeitcanserveasagoodcandidateforconstructinglarge-scaleopticalroutersorswitchingarraysinphotonicnetwork-on-chip(NoC).

简介：Silicide涂层被泥浆包硬化进程为把SiO2用作纯艾尔Si来源的12h在1173K在铜矩阵上在electro-deposited镍层上作好准备作为reducer搽粉，NaF+NH4Cl和蛋白(鸡蛋白人)是连贯的代理人。微观结构，性质和silicide涂层的siliconizing机制被讨论。有220μm厚度的silicide涂层主要是的试验性的结果表演Ni2Si阶段和Ni31Si12阶段。它的吝啬的微坚硬(HV790)比铜底层(HV70)的是十次。磨擦的系数从0.8纯铜减少到大约0.3硅Z样品。SiF2,SiCl2和SiCl3在泥浆包装硬化过程期间为Si的交通和免职负责。

简介：Thispaperinvestigatesthestaticbehaviorofafunctionallygradedcircularplatemadeofmagneto-electro-elastic(MEE)materialsundertensionandbending.Theanalysisisdirectlybasedonthethree-dimensionalgoverningequationsformagnetoelectro-elasticity,withtheboundaryconditionsontheupperandlowersurfacessatisfiedexactlyandthoseonthecylindricalsurfacesatisfiedapproximately(intheSaintVenantsense).Theanalyticalsolutions,derivedwithadirectdisplacementmethod,arevalidforanyfunctionallygradedmaterial(FGM)withitspropertiesvaryingindependentlyinacontinuousmanneralongthethicknessdirection.Forhomogeneousmaterials,thesesolutionsaredegeneratedtotheonesavailableintheliterature.Interestingrelationsarealsofoundbetweenthesolutionsforafunctionallygradedmagneto-electro-elastic(FGMEE)circularplateandthoseforanFGMEErectangularbeam,andeventhoseforafunctionallygradedelasticbeamwhenonlytheelasticdisplacementsareconsidered.Thebeamsolutionsarealsoderivedusingadirectdisplacementmethod.Numericalexamplesarepresentedtoverifythepresentanalyticalsolutions,showtheeffectsofmaterialheterogeneityandmulti-fieldcoupling,andindicatethecorrespondencebetweentheplatesolutionsandbeamsolutions.

简介：Anewapproachtodeterminealltheelectro-elasticconstantsofthepiezoelectriccrystalsinclass4mmhasbeenputforward.Asanexample,alltheconstantsofLithiumTetraborate（Li2B4O7）crystalhavebeenmeasuredbymeansoftheapproach.Theoutstandingadvantageoftheapproachisthatiton-lyneedstoemployinmeasurementthreecrystalplatesdifferentlyoriented.

简介：Adiode-end-pumpedelectro-optic(EO)Q-switchedgreenlaseroperatingattherepetitionrateof20kHzisreported.AblockofLa_3Ga_5SiO_(14)(LGS)singlecrystalisusedasaQ-switchandthetypeⅠphase-matchingLiB_3O_5(LBO)isusedasthenonlinearcrystalinthesecondharmonicgeneration.The2.3-Waveragepowerof532-nmgreenlaserisobtainedattherepetitionrateof20kHzwiththepulsewidthasshortas10ns.Whentheoutputpowerisabout1.5W,themeasuredpowerfluctuationislessthan1.4%(root-mean-square,RMS)withthebeamqualityfactorofM~2<2inbothorthogonaldirections.

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简介：Inthispaper,thebehavioroftwocollinearcracksinmagneto-electro-elasticcompositematerialunderanti-planeshearstressloadingisstudiedbytheSchmidtmethodforpermeableelectricboundaryconditions.ByusingtheFouriertransform,theproblemcanbesolvedwithasetoftripleintegralequationsinwhichtheunknownvariableisthejumpofdisplacementsacrossthecracksurfaces.Insolvingthetripleintegralequations,theunknownvariableisexpandedinaseriesofJacobipolynomials.Numericalsolutionsareobtained.Itisshownthatthestressfieldisindependentoftheelectricfieldandthemagneticflux.

简介：目的：观察电针对慢性疲劳大鼠模型下丘脑、垂体、肾上腺指数及下丘脑促肾上腺皮质激素释放激素（CRH）mRNA表达的影响，从神经内分泌角度探讨电针治疗慢性疲劳综合征（CFS）的作用机制。方法：模型组与电针组采用强制性冷水游泳的方法制作CFS大鼠模型，电针组在造模的同时在百会、足三里穴给予电针治疗。通过行为学检测对模型进行判定；采用称量法计算下丘脑、垂体、肾上腺指数；荧光定量聚合酶链反应法检测cRHmRNA含量。结果：模型组大鼠行为出现改变，产生了心理和躯体的疲劳状态。CFS大鼠下丘脑、垂体、肾上腺指数升高，下丘脑CRHmRNA的表达上升，经电针治疗后，其心理和躯体疲劳状态明显改善，肾上腺指数降低，下丘脑CRHmRNA的表达下降。结论：CFS与下丘脑、垂体、肾上腺指数及下丘脑CRHmRNA表达上调关系密切。电针可能通过下调体内下丘脑cRHmRNA的表达及降低肾上腺指数，以纠正异常的HPA轴功能来治疗CFS。

简介：AdataacquisitionsystembasedonLabVIEWisdesignedandimplemented,andelectro-discharge(ED)finetruingofmetal-bondedfine-graindiamondwheelbasedonreal-timemonitoringisresearched.Real-timemonitoringnotonlymakesefficientimpulsespecificationofEDtruingeasilyobtained,butalsoisgoodfortimelyidentifyingno-load,avoidingshortcircuitandarcdischargephenomenaandthenforobtainingnormalmachiningstate.EDfinetruingofthefine-grainwheelincludestwosteps:roughtruingforhighefficiencyandfinetruingforhighprecision.FinalEDtruingprecisionandefficiencynotonlydependonelectricprocessspecification,butalsoisconcernedwithelectrodeshape,insulatedperformanceofoperatingfluidandverticalfeedquantityvalueandfrequency.ExperimentsindicatethatEDfinetruingbasedonreal-timemonitoringcanimprovethetruingprecisionandefficiency.AveragemachiningefficiencyofW10wheelisabout0.95μm/min;thefinalrun-outbyEDtruingislessthan2μm.