简介：OneofthemostsignificantrecentdevelopmentsinmusicologyhasbeenthetranscriptionandinterpretationofcertainmusicalcuneiformtextsdatingfromthesecondmillenniumBC.IthasbeenestablishedthatOldBabylonianmusicwasdiatonicandprobablybasedonsevenheptachords,correspondingtothefirstseventonesoftheancientGreekoctavespecies.However,thereremainsaproblem:thereissomeambiguityinthetextsaboutwhetherthescalesshouldberisingorfalling,andtheirnomenclaturechangingaccordingtowhichdirectionischosen.Thisarticlesuggestsapossibleresolutionofthedifficulty.OntheassumptionthatOldBabyloniantheoreticiansmighthavequantifiedtheirscales,thearticlearithmetizesthetuningproceduresofthetwomaincuneiformtuningtextstogether,asasingleprocess,andtherebyalsodemonstratestheplausibilityofthehypothesisthattheidealizedmodelforBabyloniantuningwouldbelikelytohavebeenJusttuningratherthanPythagoreantuning,ashasbeengenerallyassumed.

简介：就台北101摩天大楼是否导致了本地地震活动的增加的争吵而言，我们重新分析在构造到前后的本地地震目录调查与构造有关的报导地震活动增加是否是统计上重要的。统计检验关于明显的地震活动增加获得了一个积极结论。然而，最大的ΔCFS的计算至多显示出那2.2x10~(-4)酒吧库仑失败压力变化被构造生产。因此，台北101的构造是否确实触发了地震活动的增加，仍然是一个待研究的问题：统计上是；身体上--没有。

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简介：Countriesintheworldhavetakenavarietyofmeanstocontrolcarbonemissionsbasedontheserioussituationofglobalwarming,theconceptoflow-carboneconomyandtheprovisionsaboutemissionsintheUnitedNationsFrameworkConventiononClimateChange(UNFCCC)andtheKyotoProtocol.Withthemeasuresofemissionsreductions,thesystemofcarbonemissionstradingistakingshape.ItisnecessaryforChinaasthebignaturalresourcesconsumptioncountrytoestablishitsowncarbonemissionstradingsystem.ByintroducingthecarbonemissionstradingsystemoftheEuropeanUnion,AmericaandJapan,andanalyzingthemarketandpoliciesbeenformed,thecarbonemissionstradingsysteminChinacanbeestablishedfromtheinitialconfigurationoftheemissionsrights,thesubjectandobjectofcarbonemissionstrading,establishingthecarbonemissionstradingexchangeandsupervisingandregulatingthecarbonemissionstrading.

简介：EstablishedbytheformerMinistryofForestryin1986,DagangshanForestEcosystemResearchStationisoneofthe14nationalkeysitesinthefieldofecosystemresearch.Inthispaper,thebasicsituationofDagangshanForestEcosystemStationisdescribed,includinggeographiclocation,naturalconditions,biologicalresources,researchconditions,instruments,achievement,prospectsetc.

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简介：Thetransmissionproject-Qinghai-Tibet750kV/±400kVAC/DCinterconnectionprojectkickedoffsimultaneouslyinGolmudofQinghaiandLhasaofTibetinJuly2010.Thispowertransfercorridor,withawholelengthof1774km,isscheduledtobecompletedbytheendof2012,whichwillthenrealizetheinterconnectionbetweenNorthwest(Qinghai)gridandTibetangridforthefirsttime.

简介：Alongwiththeeconomicdevelopmentandtheaccelerationofurbanization,urbanconstructionlandexpandsrapidlyinChina,andhasresultedinaseriesofsocio-economicproblems.Thisarticlesummarizedthemajorpointsofcontrollingtheuncheckedandrashexpansionofconstructionlandintheacademiccircle,andanalyzedtheproblemsofregulatingtheexpansionofconstructionlandfromthreeaspects.First,thisarticleanalyzedtherelationshipsbetweensocio-economicdevelopmentandurbanizationfromthehistoricalviewpoints,andpointedoutthattheexpansionofconstructionlandisahistoricalphenomenonwhichwillbesurelyappearedinthedevelopmentofhumanrace.Second,theauthorsutilizedtwo-sectormodeltoanalyzetheimportanceofurbanizationinthesocio-economicdevelopmentfromtheacademicangles.Atlast,theauthorsutilizefour-quadrantmodelandbidrentcurvemodeltoanalyzetheinfluencethatbroughtbythestrictcontrolofconstructionlandexpansion.Throughanalysis,thisarticledrewsomeconclusions.First,theexpansionofconstructionlandisaphenomenonwhichwillsurelyappearinthesocialdevelopment.Itisimpossibletoaccomplishthenationalmodernizationonthebasisofdualisticstructurebetweenurbanandruralareas.Second,underthefunctionofrentgradientgap,strictcontrolofconstructionlandexpansionwillnotonlyobtaintheanticipatedeffects,butalsocauseaseriesofsocio-economicproblems,suchasland-levyingcontradiction,theappearanceoflimitedpropertyrighthouse,andbeingdependantonleaseinsteadofexpropriation.Third,unreasonablepoliciesandgovernmentalbehaviorsaretherootsoftheuncheckedandrashexpansionofurbanconstructionland.Basedontheseconclusions,thisarticleproposedthatthreetransformationsshouldberealizedtoregulatetheuncheckedandrashexpansionofconstructionland:transfersfromquantityregulationtoqualityregulation,fromdirectregulationtoindirectregulation,andfromsingle-measureregulationtomulti-measuresr

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简介：Forestgeneticmapsareanimportantcomponentwithintheforestbiologist’stoolkit,underpinningforestimprovementprograms.Theestimationofforestgeneticmapsisaconceptuallysimpleyetcomputationallycomplexproblem,duetolonggrowthperiodandhighheterozygosisandgeneticloadofforesttrees.Atpresent,somegeneticmapsoftreeshavebeenconstructed.Thispaperreviewedtheprocessofforestgeneticmapconstruction,highlightingitsuniqueness,andpointedouttheproblemsthatmightriseinmapping.Finally,prospectwasmadeforconstructingthehighdensitygeneticmapoftrees.

简介：Robustparameterdesign(RPD)isanimportantissueinexperimentaldesigns.Ifallexperimentalrunscannotbeperformedunderhomogeneousconditions,blockingtheunitsisefective.Inthispaper,weobtainthecorrespondencerelationbetweenfractionalfactorialRPDsandtheblockingschemesforfullfactorialRPDs.Inaddition,weprovideaconstructionofoptimalblockingschemesthatmakeallmainefectsandcontrol-by-noisetwo-factorinteractionsestimable.

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简介：Ｗｅｌｄｉｎｇｔｅｃｈｎｏｌｏｇｙｉｎｏｉｌ－ｆｉｅｌｄｃｏｎｓｔｒｕｃｔｉｏｎｉｎＣｈｉｎａ￥ＨＯＵＸｉａｎｚｈｏｎｇ（ＤａｑｉｎｇＯｉｌＦｉｅｌｄ）Ａｂｓｔｒａｃｔ：Ｔｈｉｓｐａｐｅｒｉｎｔｒｏｄｕｃｅｓｔｈｅａｐｐｌｉｃａｔｉｏｎａｎｄｄｅｖｅ...

简介：Inlinewiththerapidlyexpandingelectricpowerindustryinthiscountry,Chinanowownsaworkforcetotalingmorethanhalfamillionofstaffandworkersengagedintheconstructionofthermalpowerprojects;alsothetechnologyemployedintheirworkhasexperiencednotableprogress.Intheearlyfifties,constructionworkmainlyreliedonmanualmanipulation.Besidestheuseofhand-orelectric-drivenover-headcranesinsidethemachine-house,verticaltransporta-tiondependedmainlyonhoistersandpulleys;chainblockswerescarceatthattime.Horizontaltransportationwasmainlydonebymanualpulley-blocksandrollers,sometimesalsowithwinches.Electric-orgas-weldingbyhandwasthecommonprac-tice.Inaword,thetechnologywasbackwardandlabor-inten-

简介：AcharacterizationoflinearsymplecticRunge-Kuttamethods,whichisbasedontheW-transformationofHairerandWanner,ispresented.Usingthischarac-terizationthreeclassesofhighorderlinearsymplecticRunge-Kuttamethodsareconstructed.TheyincludeandextendknownclassesofhighorderlinearsymplecticRunge-Kuttamethods.

简介：WedescribedtheconstructionofBACcontigsofthegenomeofaindicavarietyofOryzasativa.GuangLuAi4.Anentirerepresentative(Sixfoldcoverageofricechromosomes)andgeneticallystableBAClibraryofricegenomeconstructedinthislabhasbeensystematicallyanalysedbyrestrictionenzymefragmentationandpolyacrylamidegelelectrophoresis.Andalltheimagesthusobtainedweresubjecttoimage-processing,whichconsistedofpreliminarylocationofbands,cooperativetrackingoflanesbycorrelationofadjacentbads.aprecisedensitometricpass,alignmentatthemarkerbandswiththestandard,optionalinteractiveediting,andnormalizationoftheacceptedbands.ThecontigsweregeneratedbasedontheComputerSoftwarespeciallydesignedforgenomemapping.Thenumberofcontigswith600kbinlengthonaveragewas464.ofcontigswith1000kbinlengthonaveragewas107;ofcontigswith1500kbinlengthonaveragewasConstructionofOryzaSativagenomecontigs.23.Therefor,allthecontigswehaveobtainedampuntedupto420megabasesinlength.Consideringthesizeofricegenome(430megabased),thecontigsgeneratedinthislabhavecoverednearly98%ofthericegenome.Wearenowintheprocessofmappingthecontigstochromosomes.

简介：Ourobjectiveistosolvethelactosemalabsorptionandintoleranceofhumanbeingsbycombiningmlcro-ecologypathwithgeneticengineeringtechnique.PlasmidpMG36ewasusedtocloneandexpressaβ-galactosidasegenefromL.delbrueckiibulgaricusstrain1.1480intheLactococcuslactissubsp,cremorisMG1363andLactococcuslactissubsp.lactisIL1403.TherecombinantplasmidwaspreservedandproliferatedinEscherichiacoli(E.coli)JM109,andtransformedintoMG1363and1L1403byelectroporation.Theproteinexpressionwasstudied.(1)Thebifidobacteriumculturemedium(BBL)wassuitableforthegrowthofthestrain1.1480.(2)With13aminoacidsattheN-terminusfromthevector,β-galactosidasefusionprotein(whichretainedtheenzymeactivity)couldbesuccessfullyexpressedinE.coliJM109,MG1363andIL1403,buttheexpressionquantitywaslargerintheformerthaninthelattertwo.(3)TheSDsequencedesignedcouldbesuccessfullyrecognizedbyboththeE.coliandtheLactococcuslactis,buttheexpressionlevelofthenon-fusionβ-galac-tosidaseproteinwaslowerthanthatofthefusionproteininthesamehost.Theβ-galactosidasegeneticallyengineeredE.coliJM109isausefultooltoproducethisenzymeinvitro.Thesignalpeptideoftheusp45proteinfromtheLactococcuslactiscanbeaddedbeforethepromotersequencetopromoteβ-galactosidasesecretionfromLactococcuslactis.Thepotentialapplicationoftheβ-galactosidasegeneticallyengineeredMG1363andIL1403tocurethelactosemalabsorptionandlactoseintoleranceinbothhealthfoodandmedicineispromising。