简介：·AIM:Toevaluateandcompareaspherictoricintraocularlens(IOL)implantationandasphericmonofocalIOLimplantationwithlimbalrelaxingincisions(LRI)tomanagelowcornealastigmatism(1.0-2.0D)incataractsurgery.·METHODS:Aprospectiverandomizedcomparativeclinicalstudywasperformed.Therewererandomlyrecruited102eyes(102patients)withcataractsassociatedwithcornealastigmatismanddividedintotwogroups.ThefirstgroupreceivedtoricIOLimplantationandthesecondonemonofocalIOLimplantationwithperipheralcornealrelaxingincisions.Outcomesconsideredwere:visualacuity,postoperativeresidualastigmatism,endothelialcellcount,theneedforspectacles,andpatientsatisfaction.Todeterminethepostoperativetoricaxis,allpatientswhounderwentthetoricIOLimplantationwerefurtherevaluatedusinganOPDScanIII(NidekCo,Japan).Follow-uplasted6mo.·RESULTS:Themeanuncorrecteddistancevisualacuity(UCVA)andthebestcorrectedvisualacuity(BCVA)demonstratedstatisticallysignificantimprovementaftersurgeryinbothgroups.Attheendofthefollow-uptheUCVAwasstatisticallybetterinthepatientswithtoricIOLimplantscomparedtothosepatientswhounderwentimplantationofmonofocalIOLplusLRI.Themeanresidualrefractiveastigmatismwasof0.4DforthetoricIOLgroupand1.1DfortheLRIgroup(P<0.01).Nodifferencewasobservedinthepostoperativeendothelialcellcountbetweenthetwogroups.·CONCLUSION:Thetwosurgicalproceduresdemonstratedasignificantdecreaseinrefractiveastigmatism.ToricIOLimplantationwasmoreeffectiveandpredictablecomparedtothelimbalrelaxingincision.

简介：Thetraditionaleconomicgrowthmodeof"threehighsandonelow(highinput,highconsumption,highpollutionandlowefficiency)"makesChinagettheachievementsofeconomicdevelopmentandprosperityduringthereformandopeningupwithmorethan30years,butbehindthisextensivemodeofeconomicgrowthisexcessiveconsumptionofnaturalresourcesandalotofgreenhousegasesemissions,thisnotonlylimitsthegrowthrateofChina’seconomy,butmakesatremendousnegativeimpactontheenvironmentwhichisdifficultforustosurvive.Therefore,realizingindustrialstructurelow-carboneffectivelyanddevelopingalow-carboneconomycharacterizedby"low-power,lowconsumption,lowpollutionandlowemissions",becomeChina’snewtargetselectiontotransformeconomicdevelopmentmodeandrealizethegoalofoptimizationandupgradingofindustrialstructureandsustainabledevelopment.

简介：ForthesuccessofPAL-XFEL,twocriticalsystems,namelyalowemittanceinjectorandavariablegapout-vacuumundulator,areunderdevelopment.InordertorealizethetargetemittanceofthePAL-XFELinjectorwecarriedoutanoptimizationstudyofvariousparameters,suchasthelaserbeamtransverseprofile,thelaserpulselength,thelaserphase,andthegunenergy.ThetransverseemittancemeasuredattheInjectorTestFacility(ITF)isεx=0.48±0.01mmmrad.AnundulatorprototypebasedontheEU-XFELdesignandmodifiedforPAL-XFELwasbuiltandtested.Alocal-Kpoletuningprocedurewasdevelopedandtested.Asignificantreduction(90%)ofthelocal-Kfluctuationwasobserved.Therequirementofundulatorfieldreproducibilitybetterthan2×10-4andtheundulatorgapsettingaccuracybelow1μmwereachievedfortheprototype.Theopticalphasejitterafterthepoleheighttuningatthetuninggapwascalculatedtobe2.6?rms,whichsatisfiestherequirementof5.0?.

简介：Problemsencounteredintheproductionoflownickelausteniticstainlesssteelhavebeenstudied.Theseproblemsprimarilyincludethechangestothemicrostructureoftheslabduringtheheatingprocess,theformationandremovalofdeformation-inducedmartensiteduringcoldrolling,andtheeffectsoftheannealingprocessonthesurfaceoxidestructure.Areasonablemanufacturingprocesshasbeenproposedonthebasisoftheresearchresultsandhighqualitycold-rolledstripsoflownickelausteniticstainlesssteelhavebeenproduced.

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简介：Usingultrasonicguidedwavestoassesslongbonefracturesandfracturehealinghasbecomeapromisingdiagnosticissue.Butthemultimodeoverlapoftheguidedwaveschallengesthequantitativeevaluationandclinicalapplication.Inthepreformedstudy,inordertosimplifythesignalinterpretation,thelow-frequencysinusoidialsignalswereusedtoonlyexciteS0andA0modesinfracturedlongbones.TheamplitudesofS0andA0modeswerenumericallyanalyzedwithvariationincrackwidthandfractureangle.Numericalsimulation,basedonthetwo-dimensionfinite-differencetime-domain(2D-FDTD)revealsthatbothS0andA0amplitudesdecreasewiththefracturewidening.However,theincreaseinfractureanglegraduallyenhancestheA0amplitude,whilewithrespecttotheS0mode,itsamplitudeshowsanon-monotonictrendtothevariationinfractureanglewithaturningpointaround45°.TheamplituderatiobetweenS0andA0canreflectthevariationsincrackwidthandfractureangles.ThesimulationillustratesthatultrasonicguidedS0andA0modesaresensitivetothedegreeofbothverticalandobliquefracturesinthelongcorticalbone.Thesefindingsmaybehelpfulforfracturesdiagnosisandhealingevaluationofthelongbone.

简介：WithrespecttothecrestspillwaywithlargeunitdischargeandlowFroudenumber,thehydraulicsoftheslit-typeenergydissipaterattheoutletshouldbenoticedduetothecomplicatedflowregimes.Inthepresentpaper,someissuesabouthydrauliccharacteristicswereexperimentallyinvestigatedbymeansoffiveslit-typeoutletsandfourtetrahedrons,includingtheflowchoking,impacttoriverbanksandjettrajectory.Themainfindingsareasfollows.ThecriticalFroudenumberfortheflowchokingdecreaseswithincreasingoutletwidthoftheslit-typeenergydissipater.IftheflowFroudenumberisexpressedbytheparametersjustbeforethisenergydissipater,thetetrahedronplacedinsidethesidewalloftheoutletcouldefficientlyavoidtheflowimpacttotheriverbankofsameside,andcomparedwiththejettrajectoryoftheslit-typeenergydissipater,theoutletwithtetrahedronhasdifferenttrajectorytrend,i.e.,thedistanceofthejettrajectorydecreaseswiththeincreaseofthewaterheadduetospecialformoftheoutlettetrahedron.

简介：Thispapertakestheclimatechangeandlowcarboneconomydevelopmentasthestudybackground,basedontheanalysisofenergydemandandcarbonemissionsstatus,whichisaimedtoprovidethelowcarbondevelopmentpathinChinesecities.Themethodofscenarioanalysiscanbeusedtopredictlong-termstrategyfortheuncertaintyfuturedevelopment,anditwasintroducedtothefieldofsocialforecastingandpublicpolicyresearch,suchastheenvironmentalstrategicplanning,policyanalysis,andsupportofdecisioninresourcemanagement,whichcanbeusedtoexplorethepossibledevelopmenttrendandtargetoftheresultsfromthemacroperspective.Scenarioanalysishasbeengraduallyappliedtothestudyareaonlowcarboneconomy,energyforecastingandotherfieldsinrecentyears,andtherehavebeenmanyresearchresultsindifferentaspects.Thispapertakesthescenarioanalysisasbasicstudytheory,spreadingoutthepresentsituationofitsapplicationinlowcarboncityandsomeissuesthatneedfurtherstudy.Asatoolforpredictingthefuturedevelopmentinlowcarboncity,themethodofscenarioanalysishasbeenprovidingapowerfulreferenceforpoliciesandtheirexecutants.

简介：这份报纸论述有低引擎排水量的一台V6马达的主要部件的收缩怎么为在极端低温度下面的冷开始的阶段是坚定的。内燃机部件有复杂几何学并且获得热收缩在研究，使用有限元素分析的方法。热收缩的现象在极端低温度为冷开始的状况被学习，知道一台内燃机的冷开始的阶段是决定动人的旋转、翻译的部分穿生活的主要因素。检查清理的合适的选择是特别地重要的，作为它的不恰当的价值的使用导致引擎组部件的快速的操作破坏。为机轴轴承的热清理获得的结果算术地被建模，关系能被用于计算清理。数学模型为在不同软件工具中实现也是有用的。

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简介：NaturalweakacidicgroundwateroccursintheunconfinedandconfinedaquifersconsistingofQuaternaryandNeogeneunconsolidatedsedimentsnearBeihaiinsouthernGuangxi,China.UndernaturalconditionsthegroundwaterhaslowTDS(lessthan200mgL-1)andlowconcentrationsoftraceelements(lessthan100μgL-1)withadeceasingtendincontentsoftheLanthanides(rareearthelements,lessthan1μgL-1)towardshigheratomicnumber.ThegroundwaterrangesinpHfrom3.33to7.0withanaveragevalueof5.12(evenlowerthanthatoflocalrainwater,5.88).pHvaluesinthegroundwaterareabithigherinrainyseasonsthanthoseindryseasonsanddonotshowsignificantincreasingordecreasingtrendwithtime.TheaveragepHvalueingroundwaterintheconfinedaquifersisevenabitlowerthanthatintheunconfinedaquifer.ComprehensiveanalysesofthegroundwaterenvironmentsuggestthatH+inthegroundwatermaybederivedfromdissociationofH2CO3,releaseoftheabsorbedH3O+inclaylayersandtheacidityofrainwater.TheH2CO3inthegroundwatermaybeformedbydissolutionofCO2(g).Mineralsintheunconsolidatedsedimentarepredominatedbyquartzwithsmallamountofclayminerals.Thesedimentsundergoingalong-termweatheringcontainlowlevelsofsolubleconstitutes.Lackofalkalinesubstancesinthegroundwatersystemisalsohelpfulintheaccumulationofacidityofthegroundwater.

简介：Itisestimatedthatmorethanonemillionheartfailurehospitalizationsoccureachyear.Systolicheartfailureandheartfailurewithpreservedejectionfractioncontributeequallytoheartfailurehospitalizations.Heartfailurereadmissionratescontinuetobeabout25%.Strategiestoreduceheartfailurereadmissionarekeytoreducinghospitalizationrates.Thestrategiestoreduceheartfailurehospitalizationareasfollows:(1)Duringhospitalization,diuresistotheeuvolemicstateisessential.Fiftypercentofdischargedheartfailurepatientshaveminimalweightlossduringthehospitalization,representingminimaldiuresis,butstillfluidoverload.(2)Duringhospitalization,interrogatethedefibrillatororbiventricularpacemaker(ifapplicable)toensurethatthereisnorightventricularpacingandthereisappropriatebiventricularpacing.Interrogationofdevicescanidentifyarrhythmiaorsuboptimalbiventricularpacing,whichcancontributetodecompensation.(3)Beforedischarge,identifythereasonfordecompensation,suchasatrialfibrillation,infection,pulmonaryembolism,ornoncompliance.(4)Beforedischargeamultidisciplinaryteamisneededtoeducatethepatientondiet,medications,fluidweightsurveillance,andexercise.(5)Apostdischargevisitshouldoccurwithin10daysandwithemphasisonuptitrationofneurohormonalblockersandcontinuedcongestionmanagement.Suchinterventionsconductedbyamultidisciplinaryteamhavethepotentialtoreduceheartfailurehospitalizationrates.

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简介：Alowpoweratmosphericpressureplasmajetdrivenbya24kHzACpowersourceandoperatedwithaCH4/airgasmixturehasbeeninvestigatedbyopticalemissionspectrometer.Theplasmaparametersincludingtheelectronexcitationtemperature,vibrationaltemperatureandrotationaltemperatureoftheplasmajetatdifferentdischargepowersarediagnosedbasedontheassumptionthatthekineticenergyofthespeciesobeystheBoltzmanndistribution.TheelectrondensityatdifferentpowerisalsoinvestigatedbyHβStarkbroadening.Theresultsshowthattheplasmasourceworksundernon-equilibriumconditions.Itisalsofoundthatthevibrationaltemperatureandrotationaltemperatureincreasewithdischargepower,whereastheelectronexcitationtemperatureseemstohaveadownwardtrend.Theelectrondensityincreasesfrom0.8×1021m-3to1.1×1021m-3whenthedischargepowerincreasesfrom53Wto94W.

简介：AnindexingmethodforrapidevaluationoftheseismicvulnerabilityofinfilledRCframebuildingsinJordanisproposed.Themethodaimsatidentifyinglowandmediumriseresidentialbuildingsassafeorinneedoffurtherdetailedevaluation.Followingarapidvisualscreening,thebuildingisassignedaBasicCapacityIndex(BCI);fiveperformancemodifiersareidentifiedandmultipliedbytheBCItoarriveattheCapacityIndex(CI)ofthebuilding.ACapacityIndexlowerthanalimitCIvalueindicatesthatthescreenedbuildingcouldexperiencemoderateearthquakedamagewhereasahighervalueimpliesthatminordamage,ifany,wouldtakeplace.Toestablishthebasicevaluationparameters;fortyRCframebuildingswereselected,designedandanalyzedusingstaticnonlinearanalysisandincorporatingtheeffectofinfillwalls.Effectsofseismicity,localsiteconditions,horizontalirregularities(setbacksandre-entrantcorners),verticalirregularities(softstoryatgroundfloorlevel)andoverhangsontheseismicperformanceoflocalbuildingswereexamined.Assessmentformsweredesignedandusedtoevaluateandrank112samplebuildings.About40%ofthesurveyedbuildingswerefoundtobeinneedofdetailedevaluationtobetterdefinetheirseismicvulnerabilities.

简介：Companiesbearprimaryresponsibilityforlow-carboneconomy,thusrelevantlow-carbonpoliciesshouldbesetproperlytoguidethemandtoensuretheirlow-carbonproductioneffectively.Tosolvetheproblemsgeneratedduringlow-carbondevelopment,thisarticleverifiestheexistenceofthetransmissionpathandstrength.Thisverificationincludesmediatingvariablesofcompanies’willingnessandcapacitytoconductlow-carbonproduction,atransmissionmechanismthroughincentivepathandresourcesprotection,andquestionnairedataofagriculturalcompanies.Conclusionsshowthatthelowcarbonpolicieshaveobviouspositiveeffectsonwillingnessofcorporation;thebasicservice-orientedpolicyhasasignificantlypromotingeffectonlow-carbonproductioncapacity;andlow-carbonproductionperformanceispositivelyinfluencedbywillingnessaswellascapability.Aimingatabettertransmissionpath,somecorrespondingrecommendationshavebeenputforwardintheend.

简介：Nowadayslow-carbondevelopmenthasbecomeahotissueofthewholeworld.Thisarticlefirstintroducesthebackgroundoflow-carboneconomy,andthenexplainstheimportanceofretailingcompaniesinsocialeconomyandthereasonswhytheyshouldoperateinlow-carbonmode.Morespecifically,low-carbonoperationcannotonlyimprovethecompetitivenessofaretailingcompanybyreducingoperationcostandformattinggoodcorporateimage,butalsobenefitthewholesocietybyreducingenvironmentpollutionandpromotinglow-carbonconsumptionandproduction.Onlybyadoptinglow-carbonoperationpatterncanretailingcompaniesconfrontthefierceinternationalcompetition.Toillustratetheabovepointofview,severalcasesoffamouswesternretailingcompanieswillbeanalyzedinthisessay.Tesco,Wal-MartandCarrefourarealltypicalexamplesinlow-carbonoperationbecausetheyallhavegreatgreenandsustainabilityinitiatives.Basedontheadvancedexperiencesoftheabove-mentionedcompanies,thisessaydiscussesthelow-carbonoperationways,puttingforwardsomevaluablesuggestionsonthisproblem.Fromatechnicalperspective,retailingcompaniesshouldadoptadvancedtechnologiesrelatingtolow-carbonoperation.Ontheotherhand,managementlevelofretailingcompaniesshouldbeenhancedtoensuretheapplicationeffectoflow-carbontechnologies.Retailingcompaniesshouldimprovetheabilityofinternalmanagementtoexcavatetheinternalpotentialandbuildgreensupplychaintocorporatewithstrategicpartners.Finally,thisarticlegivestheconclusionofthewholeanalysis.

简介：在骨头的Microdamage累积在破裂过程期间是为精力驱散的机制之一。在骨头成分的超微结构和作文的变化能由于老化或疾病影响microdamage累积。钠氟化物(NaF)的低集中(1mM)在这研究被使用了在跟随免费秋天的影响装载的老鼠胫骨在microdamage累积上调查ultrastructural变化的效果。22根胫骨随机被划分成控制和对待NaF的组。装载的免费秋天的影响在每根胫骨上被进行两次生产microdamage。对待NaF的胫骨的有弹性的模量在影响装载以后显著地减少了，当在未经治疗的样品在之间的模量没有重要差别时预先损坏并且损坏以后的装载。Microdamage形态学分析少些显示出那，更短的microcracks与控制骨头相比在对待NaF的胫骨存在。同时，更多和更长的microcracks在压缩区域与那相比在未经治疗的样品在张力的区域被观察，而没有重要差别在对待NaF的骨头在张力、压缩的区域之间被观察。这研究的结果显示更多的精力被要求比在正常骨头在对待NaF的骨头产生microcracks。氟化物处理的低集中可以在装载的影响下面增加骨头的坚韧。这研究在ultrastructural的效果上集中了的图形的摘要在影响装载下面在骨头在microdamage上变化。对待NaF的胫骨的有弹性的模量在影响装载以后显著地减少了。更少和更短的microcracks在对待NaF的胫骨骨头存在。更多的精力被要求在对待NaF的骨头产生microdamage。氟化物处理的低集中可以增加骨头的坚韧。

简介：我们现在的Fatman，企业规模档案的存储基于从under-utilized网服务者的志愿者贡献资源，通常与业余存储能力在几千上部署了节点。Fatman明确地为提高存在存储资源的利用并且砍倒硬件购买费用被设计。没有违背服务水平目的(SLO)并且没有减少档案的系统的可获得性，最小化费用，系统设计的二个主要担心的问题正在最大化志愿者节点的资源利用。Fatman广泛地越过几datacenters在几万个服务者节点上被部署了，提供超过100PB存储能力并且服务几十内部集体数据的申请。系统由强壮的隔离和预算限制认识到有效存储限额巩固，到没有任何降级，最大地在主人级的SLO上支持资源贡献。它使用新方法由把磁盘失败预言用于minish失败恢复花费的、命名差错知道的数据管理改进数据可靠性，戏剧性地在76.3%把吝啬的时间归结为修理(MTTR)并且减少真实产品工作量上的在35%的文件碰撞比率。

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