简介:Alllanguages,thesystemsofarbitrarysymbols,areequallygood.Languagewhichisthelinguisticbehaviourisusedforhumancommunication.Therefore,therulesforconversingaredeterminedbycertainsocialrequirements.Thisessaylaysemphasisongenderdifferenceinlanguagevocabularyandinusingoflanguagesoastorevealtherelatednessbetweenlanguageandsocietyandtoexplorethelanguagedevelopmentalongwithsocialchange.
简介:Nowadays,thedisparityofthebasicpensioninlocalregionsofChinacanbedescribedasfollows:thelowleveloftheunificationofthebasicpensionsystems,thelargedisparityofthelevelofthebasicpension,andunfairnessoftheenterprises’paymentforthebasicpensionindifferentlocalregionsinChina.Thesehavealreadybroughtmanynegativeinfluences,whichhavegreatlyheldbackthedevelopmentofthesocietyandnationaleconomy.WeshouldbuildthebasicpensionsysteminalllocalregionsofChinaasawhole,whichcancoverallpeopleanddecreasethedisparityindifferentlocalregionsinChina.
简介:Thispaperpresentsacriterionfortestingtheirreducibilityofapolynomialoveranalgebraicextensionfield.Usingthiscriterionandthecharacteristicsetmethod,theauthorsgiveacriterionfortestingwhethercertaindifferenceascendingchainsarestrongirreducible,andasaconsequence,whetherthesaturationidealsoftheseascendingchainsareprimeideals.
简介:Differenceexpansion(DE)isoneofthefamousschemesinthefieldofreversibledatahiding.Withthehighefficiencyandsimplicity,DEalsohasreceivedmoreattentionovertheyears.DEhasagoodinformationcapacity,butduetoitsmajorlocationmap,thepurepayloadisratherlow.Thereforemanyscholarsdidrelevantimprovementswhichletnpixelsasaunitinsteadoftheoriginaltwopixelsasaunitandcanadaptivelyadjustthenumberofembeddingsecretinformationaccordingtothesmoothnessdegreeoftheblock,whichachievestheresultofimprovingtheinformationpayloadortheimagequality.Inthispaper,thestudyofDE-basedreversibledatahidingschemesiscomprehensivelydiscussed.TheperformanceofDEbasedschemesisevaluatedandcomparedintermsofembeddingcapacityandstego-imagequality.
简介:Itisreasonablethatthestrictsciencesrepresentedbymathematics,physicsandchemistryhavenearlybeenakindofsubstitutionalbeliefofhumansafter"theDeathofGod".Toconcludetheoretically,thesignificantattractionortheextremelygreatpowerofscienceis,inaword,thevalidityofthinkingandaction.Fromtheviewpointofhumanactionorpractice,scienceistheonlyreallyeffectivemeanswehavetodealwithnature(theother)thatspeaksthelanguageofpower.Beingacreaturethatmaybehasnocompetitiveadvantageinbiologicalsenseexceptthebrain,mencouldnotliveintheworldwithoutpower,andthesubjectivehumanpowerrepresentedandembodiedinsciencecanbeconsideredastheonlysecretbywhichwecouldstandabovealltheotherbeingsontheearth.