简介：Magneticforcetransmissionofareciprocatingmotionisstudiedbytheoreticalanalysisandexperiment.Amathematicalmodelforcalculatingthemagneticforceisderivedusingthetheoryofequivalentmagneticcharges.Anexperimentalrigisconstructedtotestthetransmissionandthemodelisverifiedbyexperiment.Effectofthetransmissionparametersonthemagneticforceisanalyzedtheoreticallyfromthemodel,andcharacteristicofthetransmissionisstudiedexperimentally.Sincethetransmissioniswithoutdirectcontactbetweentwoelements,itissuitableforapplicationinanorganism.

简介：Unpredictableairmovementshaveprovedtobeaprobleminpreviousstudiesinvestigatingrobotcommunicationbymeansofairbornepheromonechemicals.Theprojectdescribedinthispaperinvestigatestheuseofairvortexringsasameansofcarryingpheromonechemicalsbetweentransmittingandreceivingrobots.Sensitivitytochemicalsincludingpheromonesreleasedbyconspecificsisessentialformanyaspectsofaninsect’slife.Theyassistinfindingfood,locatingamate,avoidingdangerandhelpcoordinatetheactivitiesofsocialinsects.Inthefuture,autonomousrobotswillbechallengedbymanysituationssimilartothosethatfaceinsectsandothersimplecreatures.Chemicalcommunicationmayproveusefulfortheserobotsaswell.Thispaperdescribestheequipmentdevelopedforgeneratinganddetectingvortexrings.Resultsofexperimentsinvolvinglocationandtrackingofasequenceofpheromonevortexringsarealsopresented.

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简介：镰刀霉poae传播和真菌的社区作文上的Tyrophagusputrescentiae的效果在nonsterile大麦谷物被学习。实验包括了后面的处理：没有螨，控制大麦；没有preincubation，在F上包含10或50螨的大麦。poae(Tp10和Tp50)；在F上在preincubation以后包含10或50螨的大麦。poae(FTp10和FTp50)。螨的数字，F的成功的转移。在真菌的社区的poae，和变化在实验的21d以后被检验。deoxynivalenol的增加(穿上)在大麦的内容被选择为成功的F的一个标准。poae转移。T的preincubation。F上的putrescentiae。poae增加了分别地为FTp10和FTp50近似穿上水平到谷物的800和300g/kg。T。在FTp10的putrescentiae人口生长比在Tp10低，当没有差别在FTp50和Tp50之间被发现时。真菌的社区被扩大比较，它的碎片，和运作的分类单位(OTU)克隆并且定序分析。OTU分析没支持F的转移。经由螨的poae。从分析克隆，仅仅，13克隆与F聚类的序列。在在距离水平0.07点定义的OTU的poae。相关克隆从FTp10，Tp10，Tp50和控制处理，然而并非从FTp50发源。然而，F的存在。在FTp50的poae被PCR扩大与特定的教材证实。观察可以被螨人口密度的不同效果解释，也就是说在高密度，(FTp50处理)真菌被过度放牧，当更低的人口密度(FTp10)支持了F时。poae转移。

简介：Wereportacompletegenomicsequenceofrareisolates(minorgenotype)oftheSARS-CoVfromSARSpatientsinGuangdong,China,wherethefirstfewcasesemerged.Themoststrikingdiscoveryfromtheisolateisanextra29-nucleotidesequencelocatedatthenucleotidepositionsbetween27,863and27,864(referredtothecompletesequenceofBJ01)withinanoverlappedregioncomposedofBGI-PUP5(BGI-postulateduncharacterizedprotein5)andBGI-PUP6upstreamoftheN(nucleocapsid)protein.Thediscoveryofthisminorgenotype,GD-Ins29,suggestsasignificantgeneticeventanddifferentiatesitfromthepreviouslyre-portedgenotype,thedominantformamongallsequencedSARS-CoVisolates.A17-ntsegmentofthisextrasequenceisidenticaltoasegmentofthesamesizeintwohumanmRNAsequencesthatmayinterferewithviralgenomereplicationandtranscriptioninthecytosoloftheinfectedcells.Itprovidesanewavenuefortheexplorationofthevirus-hostinteractioninviralevolution,hostpathogenesis,andvaccinedevelopment.