简介：Byexpandingtheperturbationofcovariancematrixinthepowersofer-rorterm,theinfluencefunctionsforfivecanonicalmeasurementsinCCAaredevel-opedandthreesampleversionsaregiven.Forgeneralizedcorrelationcoefficientp_z,theinfluencefunctionisaquadraticformofr.v.z,anditsdistributionisconsidered.ApracticalexampleiUustratestheutilityoftheproposedinfluencefunctions.

简介：Toensurethatlimitedresourcesareallocatedmoreeffectivelytoreducemarinerisks,formalsafetyassessment(FSA),aproactivemethod,isintroducedinplanningavesseltrafficsystem(VTS).BasedonthedataofWuhanport,somenewsolutionsbasedonrisk-indicesareputforward.Theweightednumberoftrafficaccidentsispredictedafterthefutureweightedvesseltrafficvolumeisestimatedbyanalyzingthetrendoftradedevelopment.Toanalyzeriskacceptability,theas-low-as-reasonably-practica...

简介：Thispaperpresentsamethodologytodeterminethreedataquality(DQ)riskcharacteristics:accuracy,comprehensivenessandnonmembership.Themethodologyprovidesasetofquantitativemodelstoconfirmtheinformationqualityrisksforthedatabaseofthegeographicalinformationsystem(GIS).FourquantitativemeasuresareintroducedtoexaminehowthequalityrisksofsourceinformationaffectthequalityofinformationoutputsproducedusingtherelationalalgebraoperationsSelection,Projection,and...

简介：Inordertoensurethehighestsafetyrequirements,nuclearpowerplantstructures(thecontainmentstructures,thefuelstoragesandtransportationsystems)shouldbeassessedagainstallpossibleinternalandexternalimpactthreats.Theinternalimpactthreatsincludekineticmissilesgeneratedbythefailureofhighpressurevesselsandpipes,thefailureofhighspeedrotatingmachineriesandaccidentaldrops.Theexternalimpactthreatsmaycomefromairbornemissiles,aircraftimpact,explosionblastandfragments.Theimpacteffectsofthesethreatsonconcreteandsteelstructuresinanuclearpowerplantarediscussed.Methodsandproceduresfortheimpactassessmentofnuclearpowerplantsareintroduced.Recentstudiesonpenetrationandperforationmechanicsaswellasprogressesondynamicpropertiesofconcrete-likematerialsarepresentedtoincreasetheunderstandingoftheimpacteffectsonconcretecontainmentstructures.

简介：有隧道的长隧道挖掘无聊的机器(TBM)是一个复杂、随机的过程。在不同隧道节根据特定的地质的条件被调整被无常和需要容易影响，它使安排的构造和管理困难。基于岩石团分类，这份报纸估计穿入率。用率，TBM无聊的系统的一个周期的网络模拟(气旋)模型被建立，并且在不同地质的条件下面的进展率是坚定的。然后，工程安排上的不同切割器头戳的影响，根据以前的经验在合理范围被选择，被分析。而且，弄脏系统的模拟模型被造相当决定湿粪火车和栏杆交叉的数字，关于湿粪装载并且材料搬运的效率。基于在TBM无聊的系统和弄脏的系统之间的相互作用和相互关系，为全部通道过程的联合气旋模型被建立。然后合理的构造时间表，工作资源的利用率，和工程结束的概率通过模型编程被获得。最后，工程应用显示出介绍方法的可行性。

简介：没有它的参考图象或失真类型的优先的知识，盲目图象质量评价(BIQA)能估计一幅弄歪的图象的感性的质量。在这份报纸，一个新奇BIQA模型在小浪领域被开发。就多决定和分离小浪变换(DWT)的band-passing特征而言，在力量光谱上的改进被提出，即，称的小浪力量光谱(WPS)评价。然后，方向性的WPS的概念被使用简化计算。而且，人的视觉系统(HVS)的一个旋转地对称的调整转移函数(MTF)作为一个过滤器综合，它做度量标准与人的视觉感觉和更多一致歧视。实验在实时数据库和三个另外的数据库上被进行，并且结果证明建议度量标准高度与主观评估被相关，它以有效性和坚韧性与另外的最先进的度量标准竞争很好。

简介：欧洲结构的正直评价过程(SINTAP)在焊接脚趾与一个假定嵌入的缺陷和表面缺陷被用于对API5LX65管道钢的焊接关节的评价。在缺省水平(水平())，评价点被从Charpy精力测试数据保存地估计破裂坚韧价值K_lc建立。同时，分析水平(基本水平)1基于破裂坚韧CTOD被使用。然后，二个评价层次被比较。所有评价点位于分析的失败线以内的评价结果表演铺平0并且t。管道的焊接关节因此是安全的。评价基于Charpy吸收了精力，这能被结束当另外的破裂坚韧数据不是可得到的时，是适用的，或不能容易被获得。结果是保守的。

简介：Toofferatheoreticguidancetopractice,onthebasisoftheworkinanemergingstrandofsupplychainmanagementandbymatchingtheconstructsofperformanceandrisktogether,aframeworkbetweensupplychainriskmanagementandorganizationalperformanceisdeveloped.Theframeworkincludesaseriesofmutuallyassociatedprocessesasfollows:risksourcesandprofiles,riskandperformancedrives,riskandperformanceconsequences,riskmanagementresponses,andriskandperformanceoutcomes.Furthe...

简介：Aprobabilisticriskassessmentprocedureisdevelopedwhichcanpredictrisksofexplosiveblastdamagetobuiltinfrastructure,andwhencombinedwithlife-cyclecostanalysis,theprocedurecanbeusedtooptimiseblastmitigationstrategies.Thepaperfocusesonwindowglazingsincethisisaload-capacitysystemwhich,whensubjectedtoblastloading,hascausedsignificantdamageandinjurytobuildingoccupants.Structuralreliabilitytechniquesareusedtoderiveblastreliabilitycurvesforannealedandtoughenedglazingsubjectedtoexplosiveblastforavarietyofthreatscenarios.Theprobabilisticanalysesincludetheuncertaintiesassociatedwithblastmodelling,glazingresponseandglazingfailurecriteria.Damagerisksarecalculatedforanindividualwindowandforwindowsinthefacadeofamulti-storeycommercialbuilding.Thepapershowsanillustrativeexampleofhowthisinformation,whencombinedwithrisk-baseddecision-makingcriteria,canbeusedtooptimiseblastmitigationstrategies.

简介：道路方面障碍被构造保护旅客并且当车辆撞上一个障碍时，包含车辆。一般来说，如果，照原尺寸的碰撞测试需要被执行一几何上并且在结构上等价物障碍以前没被证明满足包含车辆并且为旅客保护浪费足够的冲击能的要求。因为照原尺寸的碰撞测试是很昂贵的，能在测试被测量的数据的数字通常被限制，并且在如此的测试获得好优秀大小不能总是是可能的，碰撞测试的可靠、有效的数字模拟因此是很有用的。这篇论文在车辆影响下面论述一个3栏杆钢道路交通障碍的有限元素模拟。表演层次在澳大利亚的标准AS5100定义为这些障碍的子句10.5被检查。数字模拟证明障碍能遇见低表演层次。然而，最大的减速比为旅客保护的可接受的限制高。如果在场，缘石发射车辆进障碍，允许在某些情形下面制服障碍的可能性，但是它重定向车辆并且减少事件角度，它在障碍上减少影响力量。进道路上的所有普通缘石侧面的进一步的调查应该被执行，当一仅仅缘石侧面在这研究被调查。

简介：Ageneralizedmathematicalmodelofhumanbodycurrentthresholdforperceptionwasestablishedandthecurrentflowingthroughhumanbodycouldbearbitrarycyclicalwaveforms.Therelationshipbetweenhumanbodycurrentthresholdforperceptionandcurrentfrequency,truerootmeansquare(RMS)valueandinfluencefactorwasdescribed.Atestsystemwasestablishedbasedonelectroencephalogram(EEG)tostudytherelationshipbetweenhumanbodycurrentthresholdforperceptionandcurrentwaveform,frequency...

简介：Althoughtheperformanceofmembranereactors(MR)ishighlyaffectedbytheratioofmembranearea-toreactionvolume,therearefewstudiesonthiseffectowingtothedifficultiesassociatedwithreactormanufacture.Inthisstudy,anMRwithhighA/Vratio,adiameterof35m,andaheightof0.8mmwasfabricated.SeparationperformanceofthisMRwasinvestigatedinann-butanol/watersystem.Esterificationofaceticacidandn-butanolwasusedasthemodelreactiontoinvestigatetheperformanceofcatalyticallyactivemembranereactors(CAMR)withdifferentA/Vratios.Thereactionconversionwas38.59%intheCAMRwiththehighA/Vratioof12,497/m,whichwasmuchhigherthanthatinotherCAMRs,forreactiontimeof60minandW/Vfratioof0.093g/mL.ExcellentcatalyticstabilityoftheCAMRwasconfirmedbyperforminglong-termstabilityexperiments.

简介：干燥冷却的联合使用(DC)系统和奉献通风(DV)到decouple为精力效率冷却和除去湿气过程的系统为象香港一样的副热带的气候被建议。在这研究，DCDV系统的使用的精力性能和冷凝作用风险被在香港在一座典型办公大楼分析它的应用程序检验。通过用实际设备性能数据和现实主义的大楼和系统特征的hour-by-hour模拟，与DCDV系统的使用，年度精力消费能被54%与常规系统比较减少，这被发现(经常的空气体积与再热系统)。关于冷凝作用风险，DC卷上的冷凝作用的出现的年度频率是35h，这被发现。另外的模拟被进行在DCDV系统的冷凝作用风险上检验不同参数的影响。保证的措施在DC上没有冷凝物卷也被讨论。

简介：UsingaHamburgwheel-traektestdevice,theresistancetoruttingofGussasphaltistestedandcompared.Gussasphaltwithhardbitumenhasgoodresistancetorutting.TherelatedresistanceabilitiestocrackingatlowtemperatureofGussasphaltaretestedandcomparedthroughflexuralexperimentsandthecompositestructurefatiguetestwithtemperaturedropping.Gussasphaltwithhighpedormaneepolymermodifiedbitumenhasalongerfatiguelifeandalowerbreakingtemperature;theycanbeusedinthefuturesudacesforsteelbridgedecksinGermany.

简介：Anapproachispresentedtodealwithamulti-attributedecision-makingprobleminwhichtheattributeweightsareunknownandtheattributevaluestaketheformofuncertainlinguisticvariables.First,alinguisticassessmentstandardissetuptodealwiththeuncertainlinguisticattributes,andtheoperationlawsofuncertainlinguisticvariablesandtheuncertainlinguisticweightingaverage(ULWA)operatorareintroduced.Thenarankingformulaofuncertainlinguisticvariablesbasedonexpectation-var...

简介：为了评估增强的水泥(RC)的能力，结构使遭到了到强风装载，为水泥的损坏粘性模型在装载强风的RC结构的动态回答的分析被使用，并且所有三个失败模式是数字地由有限元素软件ABAQUS模仿了。模拟结果同意试验性的观察。为在有限元素软件ABAQUS的水泥的损坏粘性模型能预言动态回答和典型弯曲，这被表明，弯曲砍并且直接砍装载强风的RC结构的失败模式。

简介：Biocharisapotentialcarrierfornutrientsduetoitsporousnatureandabundantfunctionalgroups.However,rawbiocharhasalimitedorevennegativecapacitytoadsorbphosphate.Toenhancephosphateremovalandreducephosphatereleases,acidic,alkaline,andsurfactantpretreatments,followedbygranulationandferricoxideloading,wereappliedtorawbiocharpowder(Bp).Thealkalinepretreatmentprovedtobethemosteffectivemethodandexhibitedsignificantporeexpansionandsurfaceoxidation.Bg-OH-FOshowedthehighestphosphateremovalefficiencyat99.2%(initialphosphateconcentrationof20mg/L)aftergranulationandferricoxideloading.StaticadsorptionresultsindicatedthatapHvalueof4wasthemostsuitableforphosphateadsorptionbecauseofthesurfacepropertiesofBg-OH-FOandthedistributionofP(V)inwater.Highertemperaturesandalargerinitialphosphateconcentrationledtobetteradsorption;theadsorptioncapacityofBg-OH-FOwas1.91mg/gat313Kwithaninitialphosphateconcentrationof50mg/L.TheBg-OH-FOadsorptionprocesswasendothermicinnature.TheFreundlichmodelseemedtobetheoptimumisothermmodelforBg-OH-FO.Undercontinuousadsorption,theflowrateandbeddepthwerechangedtooptimizetheoperationconditions.Theresultsindicatethataslowflowrateandhighbeddepthhelpedincreasetheremovalefficiency(g)ofthefixedbed.ThebreakthroughcurvesfittedwellwiththeYoonNelsonmodel.

简介：Anairsourceheatpumpsystem(ASHPS)usedinanofficebuildingissetupandstudiedexperimentally.Itsoperatingperformanceinwinterisevaluatedbasedontestdataandacomparativediscussionisgivenontheeffectofclimateconditionsandheatingloadratioontheoperationbehavior.Thenheatingcapacityvariationcausedbyevaporatorfrostingisanalyzedaswell.Finally,thedefrostingparametersandthetechnicalfeasibilityarestudiedforaconstantheatingdemand.TheexperimentalresultsindicatethatboththeoutletwatertemperaturedropandthesystemCOPshouldbetakenintoaccountwhensettingdefrostingparameters,andASHPSisaviabletechnologyforspaceheatingandhot-waterproductioninwinterinTianjin,whichcanmaintaintheroomtemperatureabove19℃whentheoutdoortemperatureis-2℃.

简介：为在Glycyrrhizae，Notoginseng和人参决定五saponins(notoginsenosideR1，人参皂甙Rg1，人参皂甙Re，人参皂甙Rb1和铵glycyrrhizinate)建立一个方法，有二极管数组察觉者(HPLC爸爸)的高效液体层析方法被用于InertsilODS-SP列(4.6公里敲琠慨?湯?牰'要梥

简介：片断杆射弹的设计经常为它的表演当模特儿的便利在理论分析被简化进理想的。但是在在实际应用的影响速度范围上的非理想的片断杆射弹的实际表演很少被探索。AUTODYN数字代码被用来在大量影响速度上在非理想的片断杆射弹的穿入性能之上调查部件设计的影响，它能被用来指导武器片断杆射弹的最佳的设计。