简介：Amathematicalmodeltodeterminetheoptimalproductionlotsizeforadeterioratingproductionsystemunderanextendedproductinspectionpolicyisdeveloped.Thelast-Kproductinspectionpolicyisconsideredsothatthenonconformingitemscanbereduced,underwhichthelastKproductsinaproductionlotareinspectedandthenonconformingitemsfromthoseinspectedarereworked.Considerthattheproductsproducedtowardstheendofaproductionlotaremorelikelytobenonconforming,isproposedanextendedproductinspectionpolicyforadeterioratingproductionsystem.Thatis,inaproductionlot,productinspectionsareperformedamongthemiddleK_1itemsandafterinspections,allofthelastK_2productsaredirectlyreworkedwithoutinspections.Ourobjectivehereisthejointoptimizationoftheproductionlotsizeandthecorrespondingextendedinspectionpolicysuchthattheexpectedtotalcostperunittimeisminimized.Sincethereisnoclosedformexpressionforouroptimalpolicy,theexistencefortheoptimalproductioninspectionpolicyandanupperboundfortheoptimallotsizeareobtained.Furthermore,anefficientsolutionprocedureisprovidedtosearchfortheoptimalpolicy.Finally,numericalexamplesaregiventoillustratetheproposedmodelandindicatethattheexpectedtotalcostperunittimeofourproductinspectionmodelislessthanthatofthelast-Kinspectionpolicy.

简介：大规模轧了nanowires被ammoniatingGa2O3电影成功地在在850点在Si(111)底层上扔的Nb层上综合。X光检查衍射(XRD)，扫描电子显微镜学(SEM)，field-emssion传播电子显微镜(FETEM)，Fourier转变了红外线的光谱(FTIR)被用来描绘结构、词法的性质同样综合轧了nanowires。结果表明nanowires是纯的六角形与在50nm和100nm之间的一段大约几微米和一条直径轧了wurtzite结构。最后，简短讨论了是镓氮化物nanowires的形成机制。

简介：德国电信近日宣布,将部署泛欧的NB-IoT商用网络,今年将在8个欧洲国家推出.

简介：WereportthedepositionofNb2O5filmsonunheatedBK-7glasssubstratesusingremoteplasmasputteringsystem.Theremoteplasmageometryallowspseudoseparationofplasmaandtargetbiasparameters,whichofferscompletedepositionratecontrol.Usingappropriateoxygenflowrates,high-densityandlow-lossNb2O5filmsaredepositedwithratesupto0.49nm/s.Lowerdepositionrates(~0.026nm/s)canalsobeobtainedbyworkingatlowtargetcurrentandvoltageandatlowpressure.Nb2O5filmsdepositedatdifferentrateshavetherefractiveindexofabout2.3andtheextinctioncoefficientaslowas6.9×10-5.