简介：这款相机号称“世界上最轻的数码单反”，机身重量仅为435克，面向入门级数码单反市场，它采用800万像素全同传输CCD，

简介：УТЕЛЕЭΚРАНА参考译文看电视为了看好电视并不致于疲劳，应遵守一些规则。坐得离荧屏太近或太远，收视效果都会很差。距离太近则图象的电视扫描线及其闪光清晰可见，对视力造成额外负担，并妨碍收看。如果离荧屏太远，为了看清图象每个部分，就又不得不加入视力...

简介：“新概念”作文比赛是从1999年开始举办的．1999、2000、2001这三年也恰好是中国互联网产业发展最为快速的三年，网络更是成为了时下青少年生活中十分重要的一个因素。所以，“E时代眼球榜”便是用来考察我们新概念的历届获奖者们在网络这个虚拟世界中的知名度，并且按照客观的标准为他们排定一个座次。

简介：自2006年起，雪莉·拉特利夫就已经在北卡罗来纳州罗利的一家面包圈店工作。她每天倒三趟公交车去上班。这位47岁的职员一直以来都攒着钱想买辆车，可是，几年前，她得了癌症，钱全部花在了癌症治疗上。

简介：本文在无穷维空间引入(E0，E)型渐近光滑映射的概念，研究了其基本性质和变为E中渐近光精映射的条件，我们证明了(E0，E)型吸引子存在性定理和(E0，E)型吸引子转化为E中吸引子的条件定理，所有结果都应用于一类耗散波方程新近性态的研究．

简介：最小的dilaton模型(MDM)由叫的dilaton和dilaton顶夸克搭挡把t'称为的一汗衫数量扩大标准模型。在这个工作，我们调查t'-induced放射的修正到Higgs-strahlung生产过程e+在未来Higgs的eZh工厂。我们首先详细介绍分析计算并且显示出怎么处理紫外分叉。然后，我们由从精确electroweak数据考虑限制数字地计算修正。我们发现那，为罪恶L=0.2并且mt'=1200GeV，修正是0.26%和2.1%为，1TeV分别地，并且更大的价值能作为罪恶L增加。

简介：E航海是未来航运安全保障体系建设的新标准,代表了船舶航行安全和助导航领域的发展新方向.在E航海框架下,国外一些航海强国正在积极发展E航海的概念和相关应用,这些研究采用不同的技术、针对不同的应用均取得了较为理想的效果,其成功的经验和案例对于我国E航海战略的发展具有较强的借鉴意义.在详细分析国外E航海在工程实践和理论研究经验的基础上,提出了这些经验对我国E航海战略发展的启示,为我国E航海工程建设和发展战略提供参考意见.

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简介：摘要近年来，我国机动车在数量与规模上呈现迅猛增长的态势，不难发现人们对汽车的需求量越来越大。在汽车开发与设计中，电子电气架构的设计与优化具有重要意义，这是提高汽车整体性能的重要途径，因此，针对汽车电子电气架构的设计与优化的探索对于汽车行业的发展至关重要。本文针对商用车电气电子（E/E）架构现状以及全球发展趋势进行分析。

简介：CuO-CeO2catalystswerepreparedbyaureaprecipitationmethodfortheoxidativesteamreformingofethanolatlow-temperature.Thecatalyticperformancewasevaluatedandthecatalystswerecharacterizedbyinductivelycoupledplasmaatomicemissionspectroscopy,X-raydiffraction,temperature-programmedreduction,fieldemissionscanningelectronmicroscopyandthermo-gravimetricanalysis.OverCuOCeO2catalysts,H2withlowCOcontentwasproducedinthewholetestedtemperaturerangeof250–450C.Thenon-noblemetalcatalyst20CuCeshowedhigherH2productionratethan1%Rh/CeO2catalystat300–400Candtheadvantagewasmoreobviousafter20htestingat400C.TheseresultsfurtherconfirmedthatCuO-CeO2catalystsmaybesuitablecandidatesforlowtemperaturehydrogenproductionfromethanol.

简介：摘要：上海洋泾西区项目位于上海市浦东新区，基地东至民生路，西至E08-1地块，南至昌邑路，北至滨江大道。项目包括住宅、办公及商业，总建筑面积为399539.8平方米。本文将对该项目变配电设计方案做简介。

简介：Heattransportisakeyenergeticprocessinmaterialsanddevices.Thereducedsamplesize,lowdimensionoftheproblemandtherichspectrumofmaterialimperfectionsintroducefruitfulphenomenaatnanoscale.Inthisreview,wesummarizerecentprogressesintheunderstandingofheattransportprocessinlow-dimensionalmaterials,withfocusontherolesofdefects,disorder,interfaces,andthequantummechanicaleffect.Newphysicsuncoveredfromcomputationalsimulations,experimentalstudies,andpredictablemodelswillbereviewed,followedbyaperspectiveonopenchallenges.

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简介：AconceptofSpecificStructureEfficiency(SSE)wasproposedthatcanbeusedinthelightweighteffectevaluationofstructures.Themainproceduresofbionicstructuredesignwereintroducedsystematically.Theparameterrelationshipbetweenhollowstemofplantandtheminimumweightwasdeducedindetail.InordertoimproveSSEofpylons,thestructuralcharacteristicsofhollowstemwereinvestigatedandextracted.Bionicpylonwasdesignedbasedonanalogousbiologicalstructuralcharacteristics.Usingfiniteelementmethodbasedsimulation,thedisplacementsandstressesinthebionicpylonwerecomparedwiththoseoftheconventionalpylon.ResultsshowthattheSSEofbionicpylonisimprovedobviously.Static,dynamicandelectromagnetismtestswerecarriedoutonconventionalandbionicpylons.Theweight,stress,displacementandRadarCrossSection(RCS)ofbothpylonsweremeasured.ExperimentalresultsillustratethattheSSEofbionicpylonismarkedlyimprovedthatspecificstrengthefficiencyandspecificstiffnessefficiencyofbionicpylonareincreasedby52.9%and43.6%respectively.TheRCSofbionicpylonisreducedsignificantly.

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简介：Duetotheupcomingdemandsofnext-generationelectronic/magnetoelectronicdeviceswithlow-energyconsumption,emergingcorrelatedmaterials(suchassuperconductors,topologicalinsulatorsandmanganites)areoneofthehighlypromisingcandidatesfortheapplications.Forthepastdecades,manganiteshaveattractedgreatinterestduetothecolossalmagnetoresistanceeffect,charge-spin-orbitalordering,andelectronicphaseseparation.However,theincapableofdeterministiccontrolofthoseemerginglow-dimensionalspinstructuresatambientconditionrestricttheirpossibleapplications.Therefore,theunderstandingandcontrolofthedynamicbehaviorsofspinorderparametersatnanoscaleinmanganitesunderexternalstimuliwithlowenergyconsumption,especiallyatroomtemperatureishighlydesired.Inthisreview,wecollectedrecentmajorprogressesofnanoscalecontrolofspinstructuresinmanganitesatlowdimension,especiallyfocusingonthecontroloftheirphaseboundaries,domainwallsaswellasthetopologicalspinstructures(e.g.,skyrmions).Inaddition,capacitor-basedprototypespintronicdevicesareproposedbytakingadvantageoftheabovecontrolmethodsinmanganites.Thiscapacitor-basedstructuremayprovideanewplatformforthedesignoffuturespintronicdeviceswithlow-energyconsumption.

简介：Becauseoflimitedresourceofembeddedplatforms,thecomputationalcomplexityofadvancedcontrolalgorithmsraisessignificantchallengesfortheuseofembeddedsystemsincomplexcontrolfield.AScilab/Scicosbasedembeddedcontrollerisdevelopedonwhichvariouscontrolsoftwarecanbeeasilymodeled,simulated,implemented,andevaluatedtomeettheever-expandingrequirementsofindustrialcontrolapplications.BuiltontheCirrusLogicEP9315ARMsystems-on-chipboard,thisembeddedcontrollerispossibletodevelopcomplexembeddedcontrolsystemsthatemployadvancedcontrolstrategiesinarapidandcost-efficientfashion.Duetothefreeandopensourcenatureofthesoftwarepackagesused,thecostoftheembeddedcontrollerisminimized.

简介：在低频率改正测量头相关的转移功能(HRTF)的一个方法被建议。由在低频率从球形的头模型分析HRTF，在400Hz的频率下面，HRTF的大小是将近不变的，阶段为远、近的地两个都是频率的线性功能，这被证明。因此，如果在400Hz上面的HRTF被实验精确地测量，它能由理论模型在低频率改正HRTF。计算和主观实验的结果证明建议方法的可行性。

简介：Theballisticpropertiesofalowsolidloadingcompositesolidpropellantfamily(Butalites)wasstudiedexperimentallybyusingpropellantformulationsbasedonhydroxy-terminatedpolybutadienepre-polymer(HTPB)asfuelbindermainbackbone,monoandbi-modalsystemammoniumperchlorateoxidizer(AP),copperchromite(CC)asburningrateacceleratorandaluminumpowder(Al)asmetallicfuel.HigherpressuresandAPcontentsaswellassmallerAPparticlesizewerefoundtoincreaseburningrate.ThesamebehaviorverifiedwithAlandCCaddition.AsignificantincreaseofburningratewasrecordedwhenCCaddedtothealuminizedformulationscomparedwiththenon-aluminizedofthesameoxidizersolidloadingandparticlesize.

简介：Low-creepratebrickH1SSandH2SShavebeenstudiedinLuoyangRefractoriesCo.,Ltd.onthebasisofformerresultsusingdifferentgradesyntheticmulliteandnaturalsillimaniteconcen-trate,Goodmicrostructureandhightemperaturepropertiescanbeobtainedbyusinghighqualityrawmaterialandreasonableproportioningandtechnology.ThecreepvaluesofH1SSandH2SSarelesshan0.5%at1400℃and0.45％at1350℃。