简介:Anovelwaterproofelectronicsphygmomanometerispresentedinthispaper,thespecialdesignofsealingstructureisusedinthissphygmomanometerthatallowsthesystemtofunctionnormallyinwater.ThesystemalsoadoptstherigidaircylinderasairsourcetoensureaccuratedetectionandchoosestheMP3V5050piezoresistivetransducertoensurethemeasurementprecisionofthesystolicanddiastolicpressure.TI’sMSP430FG437isusedasthecentralprocessorsothatthesystemcanbeofadvantagesoflow-power,fastdigitalprocessingandhigh-reliability.Thesphygmomanometerwasvalidatedbythreegroupsofparticipants.Theexperimentaldataindicatesthatthemeasuredvaluesofthiswaterproofelectronicsphygmomanometerareconsistentwiththeresultsofcommonelectricsphygmomanometer,themeasureerrorislessthan5mmHg,andthesystemisstableandcredible.Sothewaterproofelectronicsphygmomanometercanrealizereal-timemonitoringofbloodpressureandheartrateinthewaterandotherspecialenvironment.
简介:Currently,theagingofthepopulationhasbecometheworld’ssocialproblem.Withtheincreaseofagingpopulationandlotsofdisability,paralysismakesnursingcaremoredifficult.Becauseofmanyelderlycannotgettimelycare,thephenomenonthattheelderlyhavechronicdiseaseshasbecomemoreandmoreserious.Itisimportanttoresearchanddevelopanewproductwhichcanhelptheelderlyandthedisabledforimprovingthequalityoftheirlife.Thispapersuggestsanewtypeofmultifunctionalself-caringwheelchair-bed,whichiscombinedwithawheelchairandabed.Thebedcanrealizethefreeconversionamongusersitting,legliftingandlyingdown,andalsocanimplementthefunctionofturningonsides.Particularly,thewheelchaircanbeeasilyseparatedfromthebedandcombined,sothatpatientsandtheelderlycanmovefreelyusingit,andevenitcanbetransformedintoastandingtypetosatisfythepatient’sstandingdemand,andtoacertainextent,carryoutthepurposeofrehabilitation.
简介:工业开发能充实民族生活,但是它也引起环境污染,它是在政府,消费者,和公司之中的重要担心的一个区域。政府们提出一些环境政策,它由为绿产品开发提供更大的刺激激发工业。消费者们根据他们的环境了解和态度被分类进平常的二个组和绿市场片断。在这方面,公司需要重新考虑他们的主要产品设计策略。由在顾客偏爱,公司产品策略,和政府津贴政策之中调查相互作用,这份报纸为新产品设计策略论述一个理论模型。在如此的策略的详细理论分析以后,我们发现了那激发公司选择环境地友好的产品设计策略,政府们应该使有效津贴政策就职。在同时考虑环境问题和公司好处以后,我们设计了一条津贴政策。与如此的一条政策,公司能改变他们的主要产品设计策略并且开发绿、平常的产品,从而增加公司利润并且改进全部的环境质量。
简介:Tubehydroformingtechnologyhasshowntheattentionoftheautomotiveindustryduetoitsadvantagesoverconventionalstampingandweldingmethods.Inthisstudy,thetubehydroformingprocessincludingtubebending,preformingandhydroformingprocessforanautomobilesubframeisanalyzedanddesignedbythesimulationsoftwareAutoFormofafiniteelementmethod(FEM)program.Aparametricstudyiscarriedouttoobtaintheeffectoftheformingparameterssuchasinitialtubesizeandloadingpathonthe...
简介:ThermalresistancewascomposedbythermalresistanceofAluminumsubstrate,thermalresistanceofconvectiveheattransferandthethermalresistanceofthecoolingliquid.ThechangerulewasstudiedthroughthecalculationonAluminumplatethermalresistance,thermalresistanceofconvectiveheattransferandthethermalresistanceofthecoolingliquid.ItschangeregularitywassimulatedbytoolboxIntheMATLAB,anditwasfoundthatthermalresistanceofconvectiveheattransfereffectontheefficiencywasmostobviousinacertainamountoftheheatandflowforthermalresistanceofthePin-finradiatorunderthepremise.Thestructuralparametersofradiatorwererelatedtothesizeofthermalresistance.
简介:AdesignofthemainAC/DCconvertersystemforITERisdescribedandthecon-figurationofthemainAC/DCconvertersispresented.Toreducethereactivepowerabsorbedfromtheconverterunits,themainAC/DCconvertersaredesignedtobeseries-connectedandworkinasequentialmode.Thestructureoftheregulatoroftheconvertersystemisdescribed.AsimulationmodelwasbuiltupforthePSCAD/EMTDCcode,andthedesignwasvalidatedaccordingly.Harmonicanalysisandreactivepowercalculationoftheconvertersunitsarepresented.Theresultsrevealtheadvantageofsequentialcontrolinreducingreactivepowerandharmonics.
简介:Alongwiththedevelopmentofcomputertechniques,theapplicationofcomputerinthree-dimensionalvisualizationsimulationofplantgrowthprocesshasbeenpaidmoreandmoreattention.TakingCunninghamialanceolataasanexample,themorphologicalparametersfromtheperspectiveofthevisualsimulationweredesignedandthetrees’morphologicalcharacteristicswereanalyzedbasedonthesurveydata.CombinedwithIFS(IteratedFunctionSystem)underthecontrolofthegrowthcurve,byusingObject-orienteddesignmethods,andaccordingtoAPIandmodelrenderingtechnologyprovidedbyDIRECTX9.0,athree-dimensionalvisualizationsystemonthegrowthanddevelopmentofC.lanceolataindividualtreeweredevelopedonthe.NETandDIRECTX9.0platforms,whichrealizedthestaticanddynamicthree-dimensionalvisualizationsimulation.
简介:系在的系统为钻在的半能沉入水中的钻塔起一个重要作用深海。详细分析在进行了很好在2009在华南海在一个深海的地点钻的试用的一个半能沉入水中的钻塔的绳索上被执行。钻塔是30岁并且与457m的设计的最大的操作的水深度有一个浅平台。后面的系在分析,一个系在的图案被给那要求钻塔原版绳索系统升级。升级包括了几革新,例如安装八个更大的锚,即代替原来的锚并且插入一另外有存在的链的钢电线的600m。所有这些被做为在职务要保持进行在476m的水深度钻的钻塔提高钻塔的系在的能力。钻的全面持续时间是50天和证明在当它在华南海正在钻试用很好时,达到使钻塔静止的目标有效的升级的绳索系统。这个成功的运动证明一个更旧的半能沉入水中的钻塔能雇用在小心的设计并且到原来的绳索系统的合适的升级和修正以后在深水里钻。
简介:为车辆适应巡航控制(ACC)系统,切换的性能在之间扼杀并且刹车决定开车舒适,燃料消费和车辆的服务生活机械部件。在这份报纸,有最佳的切换控制在之间的一个ACC算法扼杀并且刹车在模型被设计预兆的控制(MPC)框架。由介绍二进制整数变量,动力学扼杀并且刹车集成于为控制器设计的一模型表情。然后,ACC算法被设计满足不仅安全汽车列在后面,而且最佳的切换在之间扼杀并且刹车,它导致二次的编程由嵌套的二环的方法解决了的一个在网上混合的整数。模拟结果证明建议ACC算法满足安全汽车列在后面的要求,由执行更光滑的回答超过传统的算法,减少切换的时间在之间扼杀并且刹车,并且因此显著地改进开车舒适和燃料效率。