简介:Thereisasignificantdiferencebetweenthecalculationbasedonthetheoryofgeneralrelativityandobservationofrotationcurvesofspiralgalaxies.Todescribethisdiscrepancy,twodistincttheorieshavebeenproposedsofar:existenceofdarkmatterandmodificationofunderlyinggravitationaltheory.Intheabsenceofdarkmatter,itisassumedthatthetheoryofgeneralrelativityongalacticscalesneedstobemodified.Thisletterisdevotedtoexplainingthisdiferenceinamodifiedteleparallelgravity.Weshowthatmodifiedteleparallelgravityfavorsflatnessofrotationcurvesofspiralgalaxiesmuchinthesamewayasobservationshows.
简介:multiverse是创造在宇宙论解决某些问题的一个假设。当前,这个计划大部分仍然是特定的,而非源于基本法律和原则。因为这,这个理论的预兆的力量是相当有限的。而且,有担心,这个理论将使计算一些测量数量不可能,例如夸克和电子的群众。在这份报纸,我们将显示出那在字符串理论的新开发,字符串理论的通用波浪函数解释,提供一个方法导出multiverse的数学表达式。我们将证明在绳理论存在的Weyl不变性显示我们的观察宇宙是从一张全息图的设计。我们将介绍物理的法律怎么能从这个事实被导出。而且,我们建议计算象夸克和电子那样的基本粒子的群众可以也提供一个方法。
简介:ThespecificsignofReynoldsstressintheboundarylayeronaflatplateatzeroincidenceisnewlyinterpretedinpresentpaperbasedonthetheoryofvortex-inducedvortex.Itavoidssomeproblemsappearedinatraditionalexplanation,onthebasisofrelationshipbetweenmeanandfluctuatingflowsduetothetransportofmomentum.Throughtheanalysisoflocalflowfieldintheimmediateneighborhoodofwall,thecharacteristicsofReynoldsstressareidentifiedthroughintroducingturbulence-inducedsmall-scalestreamwiseeddiesabovetheflatplate.ThepositiveReynoldsstressistheoreticallyverified.AndsuchnewinterpretationillustratesthatthegenerationofReynoldsstress,aswellasfluctuatingvelocity,isintrinsicallyindependentofthemeanflow.Butitsspecificsignwouldbedeterminedbythemeanflowduetotheinertialforces.Otherfeatures,suchastheintensityrelationshipamongthreecomponentsoffluctuatingvelocity,arealsopresented.
简介:Inamodelbasedonasearchwithincreasedaccuracyofcalculations-fourtimes-ofalltherootsoftheequationsforthevelocitiesofelectronsintheinverseComptoneffect,itisestablishedthatfornewvaluesoftherootsoftheequations(correspondingtothelawsofconservationofmomentumandenergy),therecoilelectronsremainultra-relativistic,accordingtotheauthors,allowstoeliminatethereverseComptoncatastropheofquasars.Themaximumvalueofthescatteringangleoftheformedparticleswasfoundtoexplainthethinquasarjets.
简介:TheEinstein'sgeneralrelativityisformulatedintheHamiltonianformforaspatiallyflat,isotropicandhomogeneousuniverse.Subsequently,weperformthecanonicalquantizationproceduretotheHamiltoniantoobtaintheWheeler–DeWittequation.SolvingtheWheeler–DeWittequationandemployingthedeBroglie–Bohminterpretationtothewavefunctionoftheuniverse,weobtainanewversionofspatiallyflatFriedmannequationfortheearlyuniversewherethescalefactoroftheuniverseistakentobesufcientlysmall.