简介：Inthispaper,weanalyzethefuzzyreliabilityofparallelingsystem,focusingonthesituationoftheearlyfailuremode.TheearlyfailuremodeoffuzzyreliabilitymainlyobeystheWeibulldistribution.Basedonthis,weobtainthedistributionfunction,densityfunction,failurefunction,reliabilityfunctionandtheformulaofthemeantimetofailure.Fortheparallelingsystemcomposedofmultiplecomponents,C1,C2,???,Cn,especiallywhenη=1,wealsoobtainthecorrespondingformulas.Finally,weciteanexampletoverifytheformulaanddeepentheunderstanding.

简介：WiththeaidofMullin-Rota＇ssubstitutionrule,weshowthattheSheffertypedifferentialoperatorstogetherwiththedeltaoperatorsDandDcouldbeusedtoconstructapairofexpansionformulasthatimplyawidevarietyofsummationformulasinthediscreteanalysisandcombinatorics.Aconvergencetheoremisestablishedforafruitfulsourceformulathatimpliesmorethan20notedclassicalfomulasandidentitiesasconsequences.Numerousnewformulasarealsopresentedasillustrativeexamples.Finally,itisshownthatakindofliftingprocesscanbeusedtoproducecertainchainsof（∞m）degreeformulasform≥3withm≡1（mod2）andm≡1（mod3）,respectively.

简介：宝马刚刚发布了全新改款的6系敞篷车型。它的主要变化还是集中在前脸以及车尾。在本次中期改款的6系敞篷版上重新设计了LED前灯组,虽然整个灯组在形状上与现款车型并没有较大区别,但在灯罩细节处有小幅变化。在前后保险杠形状、装饰条以及车身侧面翼子板装饰均有小幅变化。新款6系在车尾的改动也比较有限,LED尾灯更立体一些,而排气管末端略有修饰。全新发布的6系中期改款版本还提供了由MPower操刀设计的运动选装套件。

简介：

简介：WewillstudythestrongapproximationbyFourier-Vilenkinseriesusingmatriceswithsomegeneralmonotonecondition.ThestrongVallee-Poussin,whichmeansofFourier-Vilenkinseriesarealsoinvestigated.

简介：benzothiazole衍生物的新系列被设计并且综合。最新综合的混合物对Escherichiacoli，葡萄球菌aureus和杆菌仙影拳为他们的抗菌剂活动被屏蔽。混合物6j和6o对E显示出最高的活动。coli和S。aureus。这些混合物的抗真菌的活动也对Candidaalbicans和曲霉属菌fumigatus被测试293。混合物4c，4g和6j对C展出了最高的活动。albicans。另外，混合物4a和6j对A显示了有希望的活动。fumigatus293。而混合物4a，6j和6p显示出中等活动，一样的混合物对ChromobacteriumviolaceumATCC12472为他们的察觉到antiquorum活动被检验。在里面综合混合物测试的vitrocytotoxicity对颈的癌症(Hela)和肾成纤维细胞癌症(COS-7)房间被执行线。结果显示所有测试混合物有IC50价值>50 ；对两根房间线的mol/L。分子的性质，毒性，药相似，和药获得混合物4a-c，5a，6g，h，6j，6l，6o和7c的侧面，d也被估计。

简介：

简介：Dryseparationofironmineralfromlow-gradecoal-serieskaolininHubeiProvinceofChinawasinvestigated.ThestructureandchemicalcompositionofthekaolinoreweredeterminedbyX-raydiffraction（XRD）andX-rayFluorescence（XRF）analyses.Thenarrowparticlesizerangeclassification,drymagneticseparationandcalcinationwerecarriedouttoevaluatetheparticlesizedistribution,andtherelationbetweenthecontentofironandthewhiteness.Experimentalresultsrevealedthatthehighestcontentofiron（3.70%）inkaolinorewasintheparticlesizerangefrom60to74μm,andpyritewasthemainoccurrenceofironinthekaolinore.Drymagneticseparationshowedthattheremovalrateofironinkaolinorecouldbeincreasedobviouslyaftercalcination,andtherateofironremovalwas60%intheparticlesizerangefrom60to74μm.Aspyritecanbetransformedintohematitethroughcalcination,thermodynamicstudiesandXRDanalysisshowedthatthemaximumcontentofhematitewasobtainedat900℃,whichwouldbemorebeneficialtomagneticseparation.

简介：Inthispaper,weshowthatnewmodifieddoublecosinetrigonometricsumsintroducedin[1]areinappropriate,theclassofdoublesequencesJdintroducedthereisunusableforsuchsumsandconsequentlytheresultsobtainedinitarecompletelyincorrect.WehereintroduceappropriatemodifieddoublecosinetrigonometricsumsmakingtheclassJdusableconsideringaparticulardoublecosinetrigonometricseries.