简介：Themagnetoresistanceeffectofap–njunctionunderanelectricfieldwhichisintroducedbythegatevoltageatroomtemperatureisinvestigatedbysimulation.Asauxiliarymodels,theLombardiCVTmodelandcarriergenerationrecombinationmodelareintroducedintoadrift-diffusiontransportmodelandcarriercontinuityequations.Alltheequationsarediscretizedbythefinite-differencemethodandtheboxintegrationmethodandthensolvedbyNewtoniteration.Takingadvantageofthosemodelsandmethods,anabruptjunctionwithuniformdopingisstudiedsystematically,andthemagnetoresistanceasafunctionofdopingconcentration,SiO_2thicknessandgeometricalsizeisalsoinvestigated.Thesimulationresultsshowthatthemagnetoresistance(MR)canbecontrolledsubstantiallybythegateandisdependentonthepolarityofthemagneticfield.

简介：

简介：在纳米科学中,材料的性质与其分子结构相关,可通过拓扑指数计算得到其物理化学性质.作为一种常见结构,纳米管结已被广泛应用于材料科学及相关工程中.因此,有必要计算它对应分子结构的化学指数,结果给出纳米管结Cas（C）-CaR（C）[m,n,p]的几类基于度的化学指数的精确计算公式.作为补充结论,研究了H-环烃纳米片[4n,2m]的第四原子键连通指数.所得理论结果在材料制造工程中具有潜在的应用价值.

简介：一天,幼苗走进卖化肥的商店,肥料中N(氮)、P(磷)、K(钾)三要素抢着向它推销自己。N首先说：“我能为你提供最重要的养分,选用我,包你长得快。”

简介：ThepresentpaperdealswithfindingofconstantoccurringintheorderofapproximationofthefunctionofLipα(O<α<1)classbyusing(N,p)operator.Obviouslythefactor1/(1-α)becomeslargewhenαiscloseto1.Wehaveshowntheroleofthisfactorintheconstantofapproximation.

简介：TheanalysisofsolarcellperformancehasbeendonebysimulatingtheexternalI-Vcharacteristicsofn^+/p/p^+singlecrystalsiliconsolarcellunderhighlightintensityand1.5airmass(AM).Thismethodallowsthemaximizationofsolarcellefficiency.Tofabricatelow-costn^+/p/p^+singlecrystalsiliconsolarcells,solidsourceofdopedphosphorousandboronwasused.

简介：Inthispaper,wegivesomedecompositionsoftriplesofZpnorZ3pnintocyclictriplesystems.Newconstructionsofdiferencefamiliesaregiven.Someinfniteclassesofsimplecyclictriplesystemsareobtainedfromthesedecompositions.

简介：Letp(z)=beapolynomialdegreenandletThenaccord-ingtoBernstein’sinequality||p’||<n||p||.ItisawellknownopenproblemtoobtaininequalityanalogoustoBernstein’sinequalityfortheclassIInofpolynomialssatisfyingp(z)≡znp(1/z)HereweobtainaninequalityanalogoustoBernstein’sinequalityforasubclassofIInOurresultsincludeseveraloftheknownresultsasspecialcases.

简介：让L~p(Ω，H~n)为海森堡显示地图的L~p空间组目标。在这篇论文，一些新性质为空间L~p被获得(Ω，H~n)。

简介：本文给出了平衡完全二部图Kn,n存在P5-因子分解的充分必要条件:n≡0(mod40)

简介：Inthispaper,therigiditytheoremsofthesubmanifoldsinS^n+pwithparallelMoebiusformandconstantMObiusscalarcurvaturearegiven.

简介：给出了平衡完全二部多重图λKn,n存在P5-因子分解的充分必要条件为n≡0(mod40/d),其中d=gcd(λ,8).

简介：在这篇论文，作者学习单个p拉普拉斯算符方程−∆p在R−α+λg(x)uβ>N；在哪儿N≥3，1<p<N，λ>0，0<α<1，最大(p，2)<β+1<p*=。我们证明那在那里存在批评价值¤以便这个问题有至少二个答案如果0<λ<Λ；至少一个答案如果λ=Λ；并且没有答案如果λ>Λ。

简介：Inthispaper,wegetW1,p(Rn)-boundednessfortangentialmaximalfunc-tionandnontangentialmaximalfunction,whichimprovesJ.Kinnunen,P.LindqvistandTananka’sresults.

简介：

简介：对p〉q≥0情形下,形如limn→∞sumn∑i=1n^kf[i^q/n^p]的一类和式极限,给出并证明了其计算公式。该公式在求解这类极限时具有计算简便、适用面宽等优点,进一步还可运用于可化为这类和式极限的积式极限的计算。

简介：在不定积分的教学中,我们会碰到形如integralfromn=1（Pn（x）dx）/(（x+Px+q）q?)的积分,如同济二版高等数学

简介：

简介：Photoluminescenceevaluationofpandntype6H-SiCsampleshasbeendone.Resultsshowthatatlowtemperaturethephotoluminescenceof6H-SiCisclearlydominatedbydonor-acceptorpairtransitions,insomecase,free-to-donortransitioncouldbeobservedathighertemperature.Thethermalquenchingprocessesofthephotoluminescencehavebeeninvestigatedtodeterminethepossibleionizationnenergiesoftheimpurities.

简介：Thisarticleprovestheexistenceofsingulardirectionsofvaluedistributiontheoryforsometranscendentalholomorphiccurvesinthen-dimensionalcomplexprojectivespacePn(C).Anexampleisgiventocomplementtheseresults.