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简介：Nonlineardynamicresponseofnanomechanicalresonatorisofveryimportantcharacteristicsinitsapplication.Twocategoriesofthetension-dominantandcurvature-dominantnonlinearitiesareanalyzed.Thedynamicnonlinearityoffourbeamstructuresofnanomechanicalresonatorisquantitativelystudiedviaadimensionalanalysisapproach.Thedimensionalanalysisshowsthatforthenanomechanicalresonatoroftension-dominantnonlinearity,itsdynamicnonlinearitydecreasesmonotonicallywithincreasingaxialloadingandincreasesmonotonicallywiththeincreasingaspectratiooflengthtothickness;thedynamicnonlinearitycanonlyresultinthehardeningeffects.However,forthenanomechanicalresonatorofthecurvature-dominantnonlinearity,itsdynamicnonlinearityisonlydependentonaxialloading.Comparedwiththetension-dominantnonlinearity,thecurvature-dominantnonlinearityincreasesmonotonicallywithincreasingaxialloading;itsdynamicnonlinearitycanresultinbothhardeningandsofteningeffects.Theanalysisonthedynamicnonlinearitycanbeveryhelpfultothetuningapplicationofthenanomechanicalresonator.

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简介：新奇磁性的阴离子交换树脂NDM-1与ammonolysis和alkylating代理人通过暂停聚合然后functionalized被准备。它为硝酸盐的选择移动的申请与MIEX比较被执行?。结果证明NDM-1比MIEX在硝酸盐移动完成了更高的效率吗？做了，与或没有归功于到它交换地点上的更长的烷基链的竞争阴离子SO42的存在。由于植入的-Fe2O3与容易的分离的优点结合了，磁性的阴离子交换树脂NDM-1被认为比MIEX优异吗？为在实际申请的硝酸盐移动。

简介：AstatisticalthermodynamictheoryoflinearproteinsolutionswasproposedwiththeaidofalatticemodelandappliedtotypeⅠantifreezeprotein(AFPI)solutions.ThenumericalresultsforseveralAFPIsolutionsshowthattheGibbsfunctionofthesolutionhasaminimumatacertainproteinconcentration,buttheproteinchemicalpotentialincreaseswithincreasingtheconcentration.TheinfluencesoftemperatureandproteinchainlengthontheAFPIchemicalpotentialwerealsodiscussed.Theevaluationforthecolligativedepressionofthefreezingpointconfirmsthattheantifreezeactionshouldberecognizedasnon-colligative.Thetheoreticaldeductionfortheconcentrationdependenceofthethermalhysteresisactivitycoincidesqualitativelywiththepreviousexperimentalandtheoreticalresults.

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简介：光线的汽轮机阶段经常例如为要求离开设计操作的应用被使用，作为turbocharging。如此的阶段的离开设计能力通常通过传统的汽轮机地图被分析，阴谋减少对压力比率集体流动，为还原剂速度线。然而，一些选择是可能的，例如流动系数()到负担系数()压力比率排队的图实际上是直线，执行的很方便的性质预言。柔韧的方法re-creating这张地图从一预言-图被需要。最近的工作证明了没有任何损失模型的使用，这背推理质量取决于中间的压力比率的知识。这个参数的modelization然后被建议。比较与试验性并且CFD结果被介绍与为集体流动率和旋转速度的相当好的同意，并且为中间的压力比率。纸的最后部分被奉献给到压力比率的推理的改进的知识排队在的中间的压力比率的申请-图。在这改进旁边，古典地图的背推理方法被组织，使用并且评估。

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简介：Electro-hydraulicservovalveisatypicalcomplicatedmulti-domainsystemconstitutedbymechanical,electric,hydraulicandmagneticcomponents,whichiswidelyusedinelectro-hydraulicservosystemssuchasconstructionmachinery,heavyequipment,weaponandsoforth.Thetraditionalmethodofmodelingandsimulationofservovalveisbasedonblockdiagramorsignalflow,whichcannotdescribetheservovalvesystemfromcomponentslevelnorbeusedinmodelingandsimulationofoverallservosystems.Intheprocedureoftraditionalmethod,computationalcausalitymustbeinvolvedinmodelingofservovalve,whichisinconvenienttoexecutemodificationoncomponentsorparameters.Modelicaisanobject-orientedmodelinglanguagewhichissuitedforlarge,complex,heterogeneousandmulti-domainsystems.ThekeyfeaturesofModelicaaremulti-domain,object-orientedandnon-causal,whicharesuitableformodelingofservovalveandmakethemodelreadable,reusable,andeasytomodify.Thesimulationresultsshowsimilarcurveswithtraditionalmethod.Thisnewservovalvemodelingandsimulationmethodcanprovidetheengineersamoreefficientwaytodesignandoptimizeaservovalveandanoverallservosystem.

简介：这份报纸描述大小和快借助于一个单个传感器在一台低压力汽轮机(并行口)为骚乱紧张的决心采用的processing以后过程反应空气动力学的压力探查。钻塔与MTU飞行器的引擎在合作被设计，可观的努力被放进所有相关模型参数的调整。片计数比率，机翼方面比率，减少的massflow，减少的速度，入口骚乱紧张和雷纳兹数字被选择复制完整的规模LP汽轮机。大小被执行采用一种锁阶段的获得技术以便提供时间汽轮机转子下游的解决的流动地。全部的压力随机变化被有选择地过滤获得，在频率领域，确定的摇摆由于转子片和协调结构。骚乱紧张从在全部的压力和速度变化之间的反的Fourier变换和关联被导出。骚乱紧张的决心为操作汽轮机的条件的发动机代表允许在定子和转子之间的相互作用过程的讨论。