简介:摘要:HARRIS Z系列调频发射机为全固态调频广播发射机,该系列发射机功能强,效率高,天塔机房天津调频广播绝大多数在用的都是HARRIS Z系列调频发射机。本文主要介绍基于HARRIS Z系列调频发射机控制面板点触按键失灵的条件下,保证发射机正常开关机对前面板按键的改造。
简介:TheauthorsmainlyconcernthesetUfofc∈Csuchthatthepowerdeformationzf(z)/zcisunivalentintheunitdisk|z|<1foragivenanalyticunivalentfunctionf(z)=z+a2z2+···intheunitdisk.ItisshownthatUfisacompact,polynomiallyconvexsubsetofthecomplexplaneCunlessfistheidentityfunction.Inparticular,theinteriorofUfissimplyconnected.Thisfactenablesustoapplyvariousversionsoftheλ-lemmafortheholomorphicfamilyzf(z)/zcofinjectionsparametrizedovertheinteriorofUf.ThenecessaryorsufficientconditionsforUftocontain0or1asaninteriorpointarealsogiven.
简介:Letp(z)=beapolynomialdegreenandletThenaccord-ingtoBernstein’sinequality||p’||
简介:摘要:本文通过对ZBZ-4.0Z型煤电钻综合保护器与BZ80-2.5型煤电钻综保在矿井使用中性能对比,阐述了ZBZ-4.0Z型煤电钻综合保护器的工作原理、故障分析及排除、使用中的注意事项。
简介:Everyoneknowstodayisthestartofthenewyear,butnoteveryoneknowstodayIsalsoZDay.ItsorganizerssaythatonZday,thelastshallbethefirst-andwhatbetterdateforsuchacelebrationthanthefirstdayoftheyear?Sincetodayalsomarksthe1484birthanniversaryoftheSwissReformationleaderUlrichZwingandthestartoftheMexicanZabatlsta