简介:Theyearof2000isattheturnofthecenturyaswellasofthemillennium.Themankindwavesfarewelltothe20thcenturyaswellasthesecondmillenniumandwelcomesthe21stcenturyandthethirdmillennium.Atthisspecialjuncture,lookingcloselyatthefuturebasedonunderstandingwhichwasobtainedfromre-viewingandsummarizingthepastandpresentworldpoliticsfromhistoricalandphilosophicalstandpoints,wecanfindthatithasbecomeanunavoidablesubjectonhowtoregardthetrendoftheworldpatterntowardmulti-polarizationandrespon-sibilityadjustmentarisingfromit.
简介:I.TheargumentinbriefChinabecametheworld'slargestdestinationforforeigndirectinvestment(FDI),almostallofwhichisFDIinmanufacturingandassembly,in2003,beforefallingbackintoasolidsecondplace.TheseFDIflowshaverevolutionizedChina'sindustrialbaseandshiftedthecompositionofChineseexports
简介:与木头纤维素合成联系的UGPase基因被变成C。用调停Agrobacterium的遗传转化的方法的acuminata,;一个有效转变系统为C被开发。根据几的评估,影响调停Agrobacterium的脱氧核糖核酸转移的因素评估的acuminata。当pre有教养的叶将生物的活组织移植于培养基中培养为10min感染相应于OD600(0.5)的一种Agrobacterium文化时,最高的转变率被完成,;在三天的将生物的活组织移植于培养基中培养新生媒介上有教养。南部的杂交的结果证明到一根UGPase基因探针的kanamycin抵抗的射击的genomic脱氧核糖核酸证实了transgene的集成。转变效率(6%)在优化转变过程下面被完成。这个系统应该便于重要有用基因的介绍进C。acuminata。
简介:Chineseeconomyisfacingthe'newnormal'stateandisintheperiodofreformandtransformation.UnderthebackgroundofGlobalIndustrie4.0,Chinawillhighlydevelophightechnologyfieldsincludingnewenergy,newmaterials,aerospaceindustry,electronicinformation,biologicaltechnology,energyconservation,environmentalprotection,andsoon.China'srareearthindustryhasexperiencedexportpolicyadjustment,thesixbigrareearthsgroupintegration,priceshittingrock-bottomandsmugglingcrackdownin2015.Withtheissueofnewpoliciesand
简介:Experimentsshowthatsiltsandsiltysoilsexhibitcontractionfollowedbydilationduringshearingandtheslopeoffailurelinedecreasesatlargestrains,termedasphasetransformationbehaviour.Thispaperistodevelopanewmicromechanicalstress-strainmodelthataccountsforthephasetransformationbehaviourbyexplicitlyemployingthephasetransformationlineanditsrelatedfrictionangles.Theoverallstrainincludesplasticslidingandplasticcompressionamonggrains.Theinternal-frictionangleatthephasetransformationstateandthevoidstatevariableareemployedtodescribethephasetransformationbehaviour.ThemodelisexaminedbysimulatingundrainedanddrainedtriaxialcompressiontestsperformedonPiteasilts.Thelocalstress-strainbehaviourforcontactplanesisalsoinvestigated.更多还原
简介:Sulfurtransformationin3soilsmaintainedinaclosedincubationsystemanditsavailabilitytoplantswereinvestigatedusingcarrier-free^35S-SO4^2-and^35S-labeledryegrassstraw.Forcarrier-freeNa2^35SO4treatment,78%,70%and64%of^35SappliedwerefoundinCa(H2PO4)2-extractaleSfraction,4%,5%and7%inslowlysolubleinorganicS,11%,15%and18%inC-O-S,5%,7%,and6%inC-bondedS,and5%,7%and6%inunidentifiedorganicS120daysafterincubationinblacksoil,cinnamonsoilandchestnutsoil,respectively.Mostof35Suptakebyplantscamefromextractable35SO4^2-,andlittlefromC-O-^35SandC-bonded^35S,Inthetreatmentwith35S-labeledstraw,51%,46%and36%of35SincorporatedwerefoundinCa(H2PO4)2-extractableSfraction,7%,6%and7%inslowlysolubleinorganicS,13%,15%and18%inC-O-S,8%,8%and6%inC-bondedS,and18%,25%and35%inunidentifiedorganicSattheendofincubationinabove-mentonedthreesoils,respectively.HigheravailabilityofC-O-35S,C-bonded35Sandunidentifiedorganic35Sfrom35S-labeledstrawwasobservedin35S-labeledstrawtreatmentcomparedtocarrier-freeNa2^35SO4treatment.
简介:Inthepresentpaper,wehaveconsideredtheapproximationofanalyticfunctionsrepresentedbyLaplace-Stieltjestransformationsusingsequenceofdefiniteintegrals.WehavecharacterizedtheirorderandtypeintermsoftherateofdecreaseofEn(F,b)whereEn(F,b)istheerrorinapproximatingofthefunctionF(s)bydefiniteintegralpolynomialsinthehalfplaneRes≤b〈a.
简介:Inperiodiccellularstructures,novelpatterntransformationsaretriggeredbyareversibleelasticinstabilityundertheaxialcompression.Basedonthedeformation-triggerednewpattern,periodiccellularstructurescanachievespecialmechanicalproperties.Inthispaper,thedesignedarchitecturematerialswhichincludeelastomermatrixescontainingemptyholesorfilledholeswithhydrogelmaterialaremodeledandsimulatedtoinvestigatethemechanicalpropertyoftheperiodicmaterials.Byanalyzingtherelationshipbetweennominalstressandnominalstrainofperiodicmaterial,andthecorrespondingdeformedpatterns,theinfluenceofgeometryandshapesoftheholesonthemechanicalpropertyofarchitecturematerialisstudiedinmoredetails.Wehopethisstudycanprovidefutureperspectivesforthedeformation-triggeredperiodicstructures.
简介:Thetraditionaleconomicgrowthmodeof"threehighsandonelow(highinput,highconsumption,highpollutionandlowefficiency)"makesChinagettheachievementsofeconomicdevelopmentandprosperityduringthereformandopeningupwithmorethan30years,butbehindthisextensivemodeofeconomicgrowthisexcessiveconsumptionofnaturalresourcesandalotofgreenhousegasesemissions,thisnotonlylimitsthegrowthrateofChina’seconomy,butmakesatremendousnegativeimpactontheenvironmentwhichisdifficultforustosurvive.Therefore,realizingindustrialstructurelow-carboneffectivelyanddevelopingalow-carboneconomycharacterizedby"low-power,lowconsumption,lowpollutionandlowemissions",becomeChina’snewtargetselectiontotransformeconomicdevelopmentmodeandrealizethegoalofoptimizationandupgradingofindustrialstructureandsustainabledevelopment.
简介:Wang:Ibelievethattheabovecomparisonsofthetwo"warsonIraq"areexcellent.TheUnitedStateshasmadeitclearthatitspresentmilitaryactionsareaimingat"topplingSaddam."ItseemsthatWashingtonhaslongmadepreparationsfortheactions,andwilldomoreinthefuture.
简介:Thequadratictransformationmethodisproposedtoestimatethetrabecularspacing(Tb.Sp),animportantindexforosteoporosisdiagnosis.Theperformanceofthisalgorithmwasinvestigatedbyscattermodel,two-dimensionfinitedifferencetimedomain(2D-FDTD)simulationandinvitroexperimentsofbovinecancellousbonespecimens.Comparingwiththeotherfourmethods—autoregressivecepstrum(AR),adaptivefilter-autoregressivecepstral(AFAR),inversefilter-autoregressivecepstrum(InvAR),andsimplifiedinversefiltertracking(SIFT),quadratictransformationismuchmorestableandaccurate.TheresultsdemonstratedthatquadratictransformationisagreatalgorithmforTb.Spestimation.
简介:Basedontheprinciplesofthevisualcryptographyandthelawoflargenumbers,theunexpandedsharesaregeneratedduringtheprocessesofembeddingandverifyingthehiddenwatermark.Thewatermarkembeddingisdoneinthefrequencydomain,whichcanbedecodedbythehumanvisualsystem(HVS)withoutthenecessityofanycomplicatedcomputationandthehelpoftheoriginalimage.Experimentalresultsindicatedthatourmethodhadagoodrobustnessondarkening,lightening,blurring,sharpening,noise,distorting,jitter,jointphotographicexpertsgroup(JPEG)compression,andcropattacks.
简介:泥土矿物质捱过是到植物的营养素的来源。Palygorskite是通常发生在干旱区域的土壤和沉积的一种Mg富有的含纤维的泥土矿物质。尽管许多研究检验了为palygorskite的形成和稳定性要求的环境条件,在根地区的这种矿物质的转变的信息(或根围)农业庄稼被限制。这研究在小麦和燕麦的根围探索了palygorskite转变的可能性并且比较了这些庄稼的能力从palygorskite提取结构的Mg。庄稼在从Hamadan区域,伊朗和佛罗里达palygorskite由沙的混合物组成的壶被栽培,与提取的水灌溉了,并且与完全或Mg免费的滋养的答案对待。在100d以后,由庄稼的Mg举起被测量。在每个壶的泥土大小的粒子也与沙被分开并且通过X光检查衍射(XRD)被分析。粒子的X光检查模式与纯palygorskite粒子的相比(在耕作前)。结果证明palygorskite能在与Mg免费的滋养的答案供应的壶为小麦的生长提供足够的Mg。尽管有由从palygorskite结构的两植物的镁举起,显示palygorskite的转变的可检测的山峰都没被XRD认出。在山峰紧张的1.05nm的减少为包含palygorskite的壶是更明显的并且比为与完全的滋养的答案灌溉的壶与Mg免费的滋养的答案灌溉了。尽管在山峰紧张的减少比小麦为燕麦是更大的,显示由燕麦捱过的更大的palygorskite,由燕麦的Mg举起是低的由观察的缺乏症状证实了。