简介：Manydynamicoptimalcontrolmodelsforadvertisingmakeeffortstosolvetheproblemofdeterminingoptimaladvertisingexpendituresandothervariablesofinterestovertimeforafirmorseveralcompetingfirms,However,afteranalyzingtheextantliterature,onecanfindthatfewdynamicoptimaladvertisingmodelsavailableconsidertheproblemwithintheproductdiffusionframework.Furthermore,theestablishedmodelsinvolvingproductdiffusionareinspiredbytheBassmodel,whichhasbeenoutofdate.Thispaperposesadynamicoptimaladvertisingmodelfornewproducts,whichconsiderstheproductdiffusionbasedontherelativenewlydevelopedgeneralizedversionoftheBassmodel.Inthispaper,theoptimalcontrolmodelisusedtoderivetheoptimaladvertisingexpenditurepolicy,whichgivessomeimplicationstoadvertisingpractice.

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简介：在影响负担下面的土壤的动态性质试验性地并且数字地被学习。由有或没有影响分析土壤的微结构相片，影响负担能在紧缩的区域破坏原来的结构，这被显示出，在土壤谷物定期被重排并且形成紧缩的漩涡结构的地方。同时，土壤的动态影响过程被使用Ls-dyna的软件模仿。动态压力和密度的时间依赖者分发在土壤被获得。而且，模拟结果与试验性的结果一致。加强机制和土壤的动态压缩的规则也由于影响负担被阐明。

简介：在这份报纸，我们分析定价决定和依靠异构的出售力量在二个时期卖它的产品的一个公司的赔偿策略。卖能力的出售代理人是他们的私人信息并且将决定卖努力的代理人的有效性。我们介绍三赔偿合同策略，即分享，分开半、分开公司能在时期一并且由使用原则代理人理论采用，在每策略在二个时期为公司导出最佳的赔偿合同和最佳的价格。比较这三合同策略，我们发现为公司的最佳的策略取决于折扣因素。我们证明公司将肯定出现在为某小折扣因素，并且为分享合同的某大折扣因素的时期一分开合同肯定在时期一被规定。然而，分开半的合同可以被考虑因为一些调停打折因素，并且不能也在时期一为所有折扣因素出现。当分享合同在时期一被提供并且当分开合同在时期一被提供时，与折扣因素增加时，我们的分析也表明最佳的价格与折扣因素减少。

简介：AIM:Todelineatethecharacteristicsofthedynamicstereopsistestandanalyzerelatedparametersinintermittentexotropia[X(T)]patients.METHODS:Fifty-sevenX(T)patientsand55normalsubjectswereenrolledinthisstudy.ThenormalandX(T)groupswereusedtotestthereproducibilityandreliabilityofthedynamicstereopsistest,andBangerterfilterswithdensitiesof0.2werethenusedtosimulatesuppressiontotestfortraditionalanddynamicstereopsis.IntheX(T)group,themeasurementsincluded1)dynamicstereopsistestcomprisingthreeparts:motion+disparity,motiononlyanddisparityonly;2)oculardeviationangle;3)Bagolinistriatedlenstest;4)diseasecourse;and5)Titmusstereopsistest.RESULTS:Thetest-retestreliabilityofthedynamicstereopsismethodwas0.901inthenormalandX(T)groups,andnoneoftheX(T)patientswereabletopassthestaticanddynamicstereopsistestsafterusingthe0.2Bangerterfilter.Theaccuracyratewasgreaterthan80%inthenormalgroupand31.81%,36.36%,and45.45%forthemotion+disparity,motion-onlyanddisparityonlycomponentsofthetraditionaltestforX(T)patientsdiagnosedwithstereoblindnessviatraditionaltests,respectively.Patientswithalongdiseasecourse(>1y)hadworsedynamicstereopsisthanthosewithashortdiseasecourse(<1y;P<0.05,Chi-squaretest).Thedeviationanglewasnotcorrelatedwiththemotion+disparity,disparityonly,orthemotion-onlytestcomponents(allP>0.05,Chisquaretest).CONCLUSION:DynamicstereopsisispreservedincertainX(T)patientsdiagnosedwithstereoblindnessviatraditionaltests.AlongdiseasecoursewasshowntobeanegativefactorfordynamicstereopsisinX(T)patientswhichmightbeassociatedwithworseprogression,andprovidegoodreferencesclinically.

简介：二个主要方法，不活跃的元素方法和安静元素方法，模仿这个过程多层并且焊接的multipass被考察，并且两个方法的缺点也被讨论。把分析基于这些，一个方法叫了节点动态松驰方法被放进提交模仿多层并且这个方法的焊接过程的multipass，和原则和申请详细被讨论。模仿的结果证明用节点，动态松驰方法能减少网孔失真，改进计算效率，并且获得好模拟结果。这个方法能也在有限元素分析在模拟增加或搬迁材料的地里被使用。

简介：Inthispaper,thedynamicresponseofundersea-+towedsystemsisnumericallysimulated.Atwobodytowedsystemisespeciallyconsideredindetail.Thefactorsinfluencingtheheaveoftowed-bodies,suchastheweightofthetowed-body(inseawater),thelengthandtheweight(inseawater)perunitlengthofthecablebetweentowed-bodiesandtowingship,areinvestigatedindetail.Calculationsshowthatthetwo-bodytowedsystemcangreatlyincreasesthestabilityofthetowedsystem.

简介：Basedonthepreparativeexperimentsofthelight-emittingdiode(LED)encapsulant,threetypesofmonomermodelswithdifferentfunctionalgroupsarecarriedouttostudythepolymerizationprocessbydynamicMonteCarlo(DMC)simulationandbondfluctuationmodel(BFM).Wecalculatethedegreeofpolymerization,theradiusofgyrationandthefrequencyofvoidspherestodiscussthepolymerizationprocess,themolecularsizeandthespatialdistributionatdifferentvolumefractionsandproportions.OurresultsareinagreementwithGrest'sdecayrateandFlory'sscalelaw.Simulationsshowthatthepolymerizationprocessdependsontheappropriatevolumefractionandproportionexceedingly,andthevolumecontractioninthepolymerizationprocesscanalsobeobservedinthisstudy.Theseinvestigationscouldprovidesomeinsightsintotheunderstandingofthepolymerizationprocessoftheencapsulantandhelpustoadjusttheparametersinlaterexperiments.

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简介：AbstractBackground:Cystic echinococcosis is one of the most severe helminth zoonosis with a drastic impact on human health and livestock industry. Investigating optimal control strategy and assessing the crucial factors are essential for developing countermeasures to mitigate this disease.Methods:Two compartment models were formulated to study the dynamics of cystic echinococcosis transmission, to evaluate the effectiveness of various control measures, and to find the optimal control strategy. Sensitive analyses were conducted by obtaining PRCCs and contour plot was used to evaluate the effect of key parameters on the basic reproduction number. Based on forward-backward sweep method, numerical simulations were employed to investigate effects of key factors on the transmission of cystic echinococcosis and to obtain the optimal control strategy.Results:The food resources of stray dog and invalid sheep vaccination rate, which are always neglected, were significant to the transmission and control of cystic echinococcosis. Numerical simulations suggest that, the implementation of optimal control strategy can significantly reduce the infections. Improving the cost of health education and domestic dog deworming could not decrease human infections.Conclusions:Our study showed that only a long-term use of the optimal control measures can eliminate the disease. Meanwhile, during the intervention, sheep vaccination and stray dogs disposing should be emphasized ahead of domestic dogs deworming to minimize the control cost. Simultaneously reducing other wild intermediate hosts and strengthening the sheep vaccination as well as disposing the stray dogs would be most effective.

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简介：Afullycoupled6-degree-of-freedomnonlineardynamicmodelispresentedtoanalyzethedynamicresponseofasemi-submersibleplatformwhichisequippedwiththedynamicpositioning(DP)system.Inthecontrolforcedesign,adynamicmodelofreferencelineardriftfrequencyinthehorizontalplaneisintroduced.Thedynamicsurfacecontrol(DSC)isusedtodesignacontrolstrategyfortheDP.Comparedwiththetraditionalback-steppingmethods,thedynamicsurfacecontrolcombinedwithradialbasisfunction(RBF)neuralnetworks(NNs)canavoiddifferentiatingintermediatevariablesrepeatedlyineverydesignstepduetotheintroductionofafirstorderfilter.LowfrequencymotionsobtainedfromtotalmotionsbyalowpassfilterarechosentobetheinputsfortheRBFNNswhichareusedtoapproximatethelowfrequencywaveforce.Consideringthepropellers’wearandtear,theeffectoffilteringfrequenciesforthecontrolforceisdiscussed.Basedonpowerconsumptionsandpositioningrequirements,theNNcentersaredetermined.Moreover,theRBFNNsusedtoapproximatethetotalwaveforcearebuilttomonitorthedisturbances.WiththeDPassistance,theresultsoffullycoupleddynamicresponsesimulationsaregiventoillustratetheeffectivenessoftheproposedcontrolstrategy.

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简介：2007年，对于百万公安民警而言，是紧张忙碌、牺牲奉献的一年。这支和平年代流血牺牲最多的队伍，带给我们太多的感动。我们饱蘸激情，试图为读者奉上一桌视觉盛宴，用镜像展示中国公安的丰采。

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简介：爱普生STYLUSPHOTOR230,使用按需喷墨打印方式(微压电打印技术),90×6色(黑色、青色、洋红色、黄色、淡青色、淡洋红色)喷头数量,最高分辨率5760×1440dpi,

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简介：Tomeetthechallengeofimplementingrapidlyadvanced,time-consumingmedicalimageprocessingalgorithms,itisnecessarytodevelopamedicalimageprocessingtechnologytoprocessa2Dor3Dmedicalimagedynamicallyontheweb.Butinapremiersystem,onlystaticimageprocessingcanbeprovidedwiththelimitationofwebtechnology.ThedevelopmentofJavaandCORBA(commonobjectrequestbrokerarchitecture)overcomestheshortcomingofthewebstaticapplicationandmakesthedynamicprocessingofmedicalimagesonthewebavailable.Todevelopanopensolutionofdistributedcomputing,weintegratetheJava,andwebwiththeCORBAandpresentaweb-basedmedicalimagedynamicprocessingmethed,whichadoptsJavatechnologyasthelanguagetoprogramapplicationandcomponentsofthewebandutiliestheCORBAarchitecturetocopewithheterogeneouspropertyofacomplexdistributedsystem.Themethodalsoprovidesaplatform-independent,transparentprocessingarchitecturetoimplementtheadvancedimageroutinesandenableuserstoaccesslargedatasetandresourcesaccordingtotherequirementsofmedicalapplications.TheexperimentinthispapershowsthatthemedicalimagedynamicprocessingmethodimplementedonthewebbyusingJavaandtheCORBAisfeasible.

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