简介：TheLandofKhampaWith12yearsofexperienceworkingintheTibetAutonomousRegion,theauthor,ShenYang,hasgainedprofoundaffectionforthepeoplewholiveuponthehighplateau.AftertheauthoristransferredtoworkinGarzeTibetanAutonomousPrefecturein2016.

简介：话题呈现如果你可以创造一项发明,你会发明什么呢?你的发明是什么样子的?它又具备哪些功能呢?请你发挥奇思妙想,“Mynewinvenlion"为题写一篇英语作文来介绍你的发明。

简介：INthe1990s,FuchsiaDunlopdecidedtovisitChinaafterreadingarticlesaboutthecountryforseveralmonths.Theensuingone-monthbackpackingtripexposedtheEnglishwomantoawiderangeofChinesefood.“ThedishesandsoupsIhadeveninthecheapestandplaineaterieswerebetterthanwhatIhadintheU.K.,”Dunloprecalled.

简介：InthisworkweanalyzethecharacteristicsofquantumentangleinentoftheDiracfieldinnoninertialreferenceframesinthecontextofanewtypepseudo-purestate,whichiscomposedoftheBellstates.Thiswillhelpustounderstandtherelationshipbetweentherelativityandquantuminformationtheory.SomestateswillbechangedfromentangledstatesintoseparableonesaroundthecriticalvalueF=1/4,butthereisnosuchacriticalvalueforthevariableyrelatedtoaccelerationa.WefindthatthenegativityNas(ρ^TAAB1)increaseswithFbutdecreaseswiththevariabley、whilethevariationofthenegativityNb1b11(ρ^TB1B1B11)isoppositetothatofthenegativityNAB1(ρ^TAAB1).WealsostudythevonNeumannentropiesS(ρAB1)andS(ρB1B11)、WefindthattheS(ρAB1)increaseswithvariableybutS(ρB1B11)isindependentofit.However,bothS(ρAB1)andS(ρB1B11)firstdecreaseswithFandthenincreaseswithit.TheconcurrencesC(ρAB1)andC(ρB1B11)arealsodiscussed.WefindthattheformerdecreaseswithywhilethelatterincreaseswithybutbothofthemfirstincreasewithFandthendecreasewithit.

简介：Thispaperpresentsastep-by-stepprocedureusingthethree-dimensionalboundaryelementapproachtostudythebehaviorofsemi-circularcanyonsunderseismicshearwaves.TheboundaryelementcodeTDASCallowsutilizationforvariouscanyongeometries,evaluationofconcurrentseismicwavesandcalculationofthegroundmotionsoncanyonsduetoanexcitationatanyarbitrarypointoftheincidentfield.Consideringthewideningratioofthecanyon(includingprismatic,semi-prismaticandnon-prismaticcanyons),wavecharacteristics(wavelength,dimensionlessperiod,direction)andmaximumamplificationpattern,thesolutionwasappliedtocarryoutaseriesofparametricstudies.Itwasshownthatcanyonformcansignificantlyaffectthedisplacementamplification,especiallyatthepointslocatedonitsedges.Byincreasingthewavedimensionlessfrequency(η>1),theamplificationpatternbecomesmorecomplex.Onthebasisoftheresultsfromavarietyofconsideredcases,anewexpressionhasbeenpresentedforthelimitingwavelengthbeyondwhichthewideningofthecanyonwillnothaveamajoreffectonthedisplacementamplification.Toverifythereliabilityoftheproposedapproach,theobtainedresults,expressedintermsofdisplacementamplitude,werecomparedwiththosefromtheavailablepublishedliteratureandareasonablygoodagreementwasobserved.

简介：Twonewfuranfragmentisomerizedlimonoids,meliazedalidesAandB(compounds1and2),wereisolatedfromthefruitsofMeliaazedarachLinn..TheirchemicalstructureswereelucidatedonthebasisofHR-ESI-MSand1Dand2DNMRdata,whichbelongedtonimbolinin-andtrichilin-class,respectively.Compound2exhibitedweakinhibitoryeffectonNOproductioninlipopolysaccharide(LPS)-activatedRAW264.7macrophageswithIC50being37.41μmol·L^-1.

简介：TheEocenesuccessionoftheElBasatinSectioninGebelMokattam,eastofCairo,consists,frombasetotop,oftwomainunits;theMokattamandMaadiFormations.TheMokattamFormationconsistsoftwoMembers,theBuildingStoneMemberandtheGiushiMember.TheUpperBuildingStoneMemberyieldedsixspeciesofNummulitesbelongingtotheUpperLutetian.Thesespeciesare:NummulitesfarisiHusseinetal.,2004;Nummulitescf.praegizehensisBoukharyandHussein-Kamel,1993;Nummulitescf.gizehensis(Forskal,1775);Nummulitesdiscorbinus(Schlotheim1820)andArxinaschwageri(Silvestri,1928)emendedbyBoukharyetal.2012andNummulitescrassichordatusBoukharyetal.,2010.TheGiushiMemberyieldedthreespeciesthatindicateaBartonianage.Thesespecies,whichcontinuedfromtheirfirstappearanceintheUpperBuildingStoneMembers,areN.discorbinus,A.schwageriandN.crassichordatus.TheMaadiFormation,whichhasbeenpreviouslyconsideredtobeofBartonian–Priabonianage,isdevoidoffossilsinthestudysection.ThetwomembersoftheMokattamFormationrepresentacarbonateplatformfacies.ThedepositionoftheUpperBuildingStoneMemberwasdisturbedduringtheLutetianbyslumpingandaconvolute-beddinginterval,indicatingashorthiatus.Thesubsequentregressionresultedinaveryshallowmarinetonear-shorefaciesintheaboveMaadiFormation.

简介：摘要：当今时代是一个自主学习的时代，在这样的时代背景下，我们要交给学生的是如何探究知识，而不是知识本身。而要想高中生能够在知识学习过程，掌握基本的英语知识学习技能，我们就要构建与现实学习条件相一致的英语生态课堂，让学生们在原生态的英语知识学习过程中，在教师的暗示引导和同伴的辅助之下，完成对英语知识的自主探究，增强自身的知识感知能力。构建高中英语生态课堂 ,能够满足高中学生的发展需求 ,激发他们内在的潜能 ,体现学生的主体地位。构建生态课堂是新课程改革的需要 ,同时也能更好地遵循教学规律 ,促进了学生价值观的形成。

简介：GrinmAdvancedMaterialsannouncedthecompany'sinvestmentintheestablishmentoftheinnovationandachievementtransformationbaseprojectonJanuary5,2019.Accordingtotheannouncement,theprojectwluldbelocatedintheLelingChemicalIndustryParkofDezhoucity,Shandongprovince.Theprojectwouldbebuiltintotwophases.Thefirstphaseisplannedtocoveratotalareaof100muwithatotalconstructionareaof30,000squaremeters.Thefirstphaseprojectincludessevenproductionlinesofthreesectorsreferringtoultrahighpurityraremetalsandcompounds,rareearthfunctionalmaterialsandhigh-endcrystalmaterialsanddevices.Totalproductioncapacityofthesevenlineswillbe1,100tons.

简介：RiceisanimportantfoodcropinChina,andthedevelopmentofhybridriceisacrucialwaytoincreasegrainyield.Thecreationofdual-purposenuclear-sterilelinesfortwo-linehybridbreedinghasbecomevitalforcommercialricebreeding.WeconstructedthepC1300-2x35S::Cas9-sgRNAPTGMS2-1expressionvectorforeditingthemalefertilitygenePTGMS2-1intwowidelycompatiblericevarieties,93-11andHuazhan,byusingtheCRISPR/Cas9system.Weobtainedthemarker-freephotoperiod-/thermo-sensitivegenicmale-sterile(P/TGMS)linesinT1generation.Accordingtotheexperimentsinphytotronwithfourtemperatureandphotoperiodtreatments,wefoundthetemperatureisthemainfactorforrestoringthepollenfertilityofptgms2-1mutantsin93-11andHuazhan,andthephotoperiodalsohassomeeffectsonpollenfertilityintwodifferentricebackgrounds.Theapplicationofcultivatingnewmale-sterilelinesbygenomeeditingsystemwillsignificantlyacceleratethericebreedingprocess.

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