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简介：最近，测量效率的方法上有更多的争论。这篇论文的主要目的是为不同边疆模型做敏感度分析并且比较从为特定的应用估计多产量边疆的不同方法获得的结果。方法包括随机的距离函数边疆，随机的光线边疆，和数据包封分析。有或没有效果建模的无效的随机的边疆回归也被比较并且测试。结果显示在从其他的评价方法获得的结果之间有显著相关。

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简介：3Dprintingisdisruptingthedesignandmanufactureofelectronicproducts.3Dprintingelectronicsoffersgreatpotentialtobuildcomplexobjectwithmultiplefunctionalities.Particularly,ithasshowntheuniqueabilitytomakeembeddedelectronics,3Dstructuralelectronics,conformalelectronics,stretchableelectronics,etc.3Dprintingelectronicshasbeenconsideredasthenextfrontierinadditivemanufacturingandprintedelectronics.Overthepastfiveyears,alargenumberofstudiesandeffortsregarding3Dprintingelectronicshavebeencarriedoutbybothacademiaandindustries.Inthispaper,acomprehensivereviewofrecentadvancesandsignificantachievementsin3Dprintingelectronicsisprovided.Furthermore,theprospects,challengesandtrendsof3Dprintingelectronicsarediscussed.Finally,somepromisingsolutionsforproducingelectronicswith3Dprintingarepresented.

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简介：TheaccessionofAntoninusPiussawadistinctchangeinimperialfrontierpolicyinBritain.Upontakingpower,Antoninus’representativeinBritain,Q.LolliusUrbicus,1undertookthesystematicre-occupationoflowlandScotlandandanewnorth-western

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简介：Withthedevelopmentandimplementationofperformance-basedearthquakeengineering,harmonizationofperformancelevelsbetweenstructuralandnonstructuralcomponentsbecomesvital.Evenifthestructuralcomponentsofabuildingachieveacontinuousorimmediateoccupancyperformancelevelafteraseismicevent,failureofarchitectural,mechanicalorelectricalcomponentscanlowertheperformanceleveloftheentirebuildingsystem.Thisreductioninperformancecausedbythevulnerabilityofnonstructuralcomponentshasbeenobservedduringrecentearthquakesworldwide.Moreover,nonstructuraldamagehaslimitedthefunctionalityofcriticalfacilities,suchashospitals,followingmajorseismicevents.Theinvestmentinnonstructuralcomponentsandbuildingcontentsisfargreaterthanthatofstructuralcomponentsandframing.Therefore,itisnotsurprisingthatinmanypastearthquakes,lossesfromdamagetononstructuralcomponentshaveexceededlossesfromstructuraldamage.Furthermore,thefailureofnonstructuralcomponentscanbecomeasafetyhazardorcanhamperthesafemovementofoccupantsevacuatingbuildings,orofrescueworkersenteringbuildings.Incomparisontostructuralcomponentsandsystems,thereisrelativelylimitedinformationontheseismicdesignofnonstructuralcomponents.Basicresearchworkinthisareahasbeensparse,andtheavailablecodesandguidelinesareusually,forthemostpart,basedonpastexperiences,engineeringjudgmentandintuition,ratherthanonobjectiveexperimentalandanalyticalresults.Often,designengineersareforcedtostartalmostfromsquareoneaftereachearthquakeevent:toobservewhatwentwrongandtotrytopreventrepetitions.Thisisaconsequenceoftheempiricalnatureofcurrentseismicregulationsandguidelinesfornonstructuralcomponents.Thisreviewpapersummarizescurrentknowledgeontheseismicdesignandanalysisofnonstructuralbuildingcomponents,identifyingmajorknowledgegapsthatwillneedtobefilledbyfutureresearch.Furthe

简介：Thispaperconstructstheindexsystembymeansofquantitativeanalysis.WechoosethecoordinationdegreeofYunnanprovincefrom2012to2015.TheregionalculturalandeconomicdevelopmentinYunnan’sfrontierareanalyzedsothatwecanprovidethereferenceforthesustainabledevelopmentofYunnan’sfrontierandrealizethecoordinateddevelopmentofcultureinYunnan’sfrontierandeconomicsysteminorder.TheresultsshowthatthecultureandeconomyinYunnan’sfrontierarecoupledwithformationofthecoordinateddevelopmentofcultureandeconomy;economicdevelopmentisthemainreasontopromotethecoordinateddevelopmentofcultureandeconomyinYunnan’sfrontier,anditcontributestothemainforceofimprovingthecoordinateddevelopmentofevolutiontypes;thecoordinateddevelopmentdegreeoftheoveralllevelislowandstillintheChina’sbackwardlevel.

简介：Stochasticfrontierproductionfunctionapproachisadopted,93farmersampleshavebeencollected,pureefficiency,technicalefficiency,technicalchangeandscaleefficiencyandtheinstitutionalcontributionhavebeencalculated.Theresultsindicatedthatincreasingproductivityisthesolemeasurementtoreducepoverty,institutionandtechnicalchangearethetwokeyfactors.Therefore,stableinstitution,improvingtechnicalchangesarerequired.Atpresent,itisurgenttomaketechnicalprogre...

简介：Twocarriersofnew-typecholeracausedbyVibratocholeraO139werefoundfromtheworshipersinHongqilapuportofXinjiangUygurAutonomousRegioninJune1994.Theisolateswerecultureandidentificated.TheresultsdemonstratedthattwoisolateswerethenewstereotypeofⅤ.choleraO139.ThesuccessfulsurveillanceforcholeraandthefindingofcarriersofⅤ.choleraO139byHealthQuarantineorganizationinportpreventedeffectivelythewidespreadofⅤ.choleraO139.Whileperformingthesurveillanceforcholerabyeachport,wemustpayattentiontothesurveillanceofnew-typecholeracausedbyⅤ.choleraO139.

简介：据菲律宾媒体7月10日报道，菲律宾生力集团旗下最大企业-TopFrontier投资控股公司将投资10至15亿美元在苏里高省建造一个镍矿加工厂，该厂将采用高压酸浸HPAL技术，年产镍20万吨，目前正在与潜在设备供应商洽谈。

简介：摘要：阅读理解教学是培养学生综合语言运用能力的重要环节。本文通过深入探讨思维品质的理论框架，并结合具体的教学案例，详细分析了如何在阅读理解教学中有效培养学生的逻辑性、批判性和创造性等思维品质。文章提出了运用思维导图、问题链设计和情境探究等教学手段，以提升学生的阅读理解能力和思维品质，进而促进其全面发展。