简介:摘要:在智能电网快速发展的过程中,用电信息采集系统的作用不断的显现出来。利用用电信息采集系统收集需要的用电数据信息,能够有效提升电力企业对电力系统运行的掌控能力,同时也能有效减少窃电行为,维护电力企业的经济利益。关键词:AR技术;用电信息;采集系统运维;应用
简介:AD73322是AD公司推出的一款低功耗双通道模拟前端器件。文章在介绍了AD73322的性能特点和TMS320C5402的结构特点的基础上.给出了一种利用TMS320C5402的多通道缓冲串行口(MCBSP)和AD73322AR组成数据采集模块的设计方案。
简介:Inthispaper,weconsideranewsvendormodelinwhicharisk-aversemanagerfacesastochasticprice-dependentdemandineitheranadditiveoramultiplicativeform.Anemergencypurchaseoptionisallowedaftertherealizationofdemandtosatisfytheunitsthatareshort.Byadoptingconditionalvalue-at-risk(CVaR)asthedecisioncriterion,weaimtoinvestigatetheoptimalpricingandorderingdecisions,andtheeffectsofparameterchangesinsuchasetting.Weprovidesufficientconditionsfortheuniquenessoftheoptimalpolicyforbothdemandmodels.Weperformcomparativestaticsanalysistoshowhowtheoptimalpricingandorderingdecisionbehaveswhenchangingparameters.WealsocompareourresultswiththoseofthenewsvendorwithageneralutilityfunctionandwithCVaRcriterionunderlostsalesassumption.Ourkeyresultsinclude:(i)Forbothdemandmodels,theoptimalsellingpriceisdecreasinginriskaversion.Hence,theoptimalpriceofarisk-aversenewsvendorisnotgreaterthantheoptimalpriceofarisk-neutralnewsvendor.(ii)Incontrarytothelostsalescase,forthemultiplicativedemandmodel,theoptimalorderquantitymaynotbemonotonicinriskaversion.Consequently,theoptimalrisk-averseorderquantitymaybelowerorhigherthantheoptimalrisk-neutralcounterpart.(iii)Fortheadditivemodel,theoptimalorderquantityisstrictlyincreasingintheemergencypurchaseprice,whileforthemultiplicativemodeltheoptimalorderquantityhasnosuchamonotonicproperty.Somenumericalexamplesareconductedtoverifyourclaimsandgainmoreinsightsabouttherisk-aversedecision-makingbehaviors.
简介:ThepatternofITOtransparentelectrodeofpixelcellsinTFTAMLCDisacriticalstepinthemanufacturingprocessofflatpaneldisplaydevices,thedevelopmentofsuitableplasmareactiveionetchingisnecessarytoachievehighresolutiondisplay.InthisworkweinvestigatedtheAr/CF4plasmaetchingofITOasfunctionofdifferentparameters.WedemonstratedtheabilityofthisplasmatoetchITOandachievedanetchingrateofabout3.73nm/min,whichisexpectedtoincreaseforlongpumpingdownperiod,andalsothroughadditionofhydrogenintheplasma.FurthermorewedescribedtheITOetchingmechanisminAr/CF4plasma.Theinvestigationofselectivityshowedtobeverylowoversiliconnitrideandsilicondioxidebutveryhighoveraluminum.
简介:这研究检验云放射的强迫(CRF)在亚洲季风区域(0°50°N-60°150°E)在气候变化(IPCC)上由Intergovernmental面板模仿了第四个评价报告(AR4)AMIP模型。在北方的冬季期间,没有模型写实地复制更大的长波浪的云放射的强迫(LWCF)在西藏上,高原(TP)和仅仅几个模型相当捕获更大的短波CRF(SWCF)到TP的东方。在北方的夏天期间,为在活跃对流区域的模仿的CRF的中央地点和紧张有更大的偏爱。CRF偏爱是仔细与在模型的降雨偏爱有关。定量分析进一步显示在模仿的CRF和观察之间的关联不高,并且在SWCF的偏爱和差异在LWCF比那大。在东亚上的模仿的CRF的年度周期(0°50°N,100°145°E)也被检验。尽管许多模型在热带捕获基本年度周期,到在早春的TP开始的东方的强壮的LWCF和SWCF被大多数模型低估。总体上,GFDL-CM2.1,MPI-ECHAM5,UKMO-HadGAM1,和MIROC3.2(med物件)在亚洲季风区域为CRF模拟表现很好,并且多模型整体(MME)在单个模拟上改进了结果。加强在TP上包含的物理parameterizations,并且改进积云传送对流处理,模型实验设计对在亚洲季风区域的CRF模拟关键,这被建议。