简介：RE-2无线话筒系统的主要功能特点有：接收器具有ClearScan^TM功能，可在数秒内搜寻到最清晰的频道；可在25kHz编程，并涵盖28kHz操作频带，在1112个频率中找到清晰的频道；LCD显示群组、通道，频率、发送、电池电平、分集式操作、RF及音频信号电平；话筒可通过平衡XLR或非平衡的1／4”线电平插头输出音频信号，可在各种场合使用；提供专业高质量音频；独特的吉他设置可把接收器和腰包转换为无线吉他系统。发射器具有LCD显示工作状态，可在黑暗中快速更换的“智能”安全电池、低电压LED显示，静音开关键和开关键锁定等功能和特点。配置3种适应不同场合应用的手持话筒。

简介：ConsideringtheimportantchangesintheSwissenergysector,especiallyinrenewableenergy(RE)technologies,newrevenuepossibilitiesforsmallandmediumsizedenterprises(SMEs)emerge.However,theadaptionofRE-technologiesforSwissenterprisesreliesontangiblefinancialreturns,basedoncomplexcalculations.Thisarticleanalysesbusinessopportunities(BOs)ofeightSwissSMEsconsideringthenetpresentvalueofRE-investmentsinanuncertaineconomicenvironment.WeidentifytwoprofitableBOsforSwissSMEsandthreewhicharenotprofitable.Further,thearticledemonstratesthattheprofitabilityofsuchinvestmentsremainsmostlypositiveevenundereconomicuncertainties.SurprisinglytheprofitabilitydoesnotchangesignificantlyiftheSMEreceivesasubsidyornot.ThesupportinstrumentoftheSwissGovernmenthasnotaponderousimpactonthedecisiontoinvestinRE-technologiesornot.Therefore,thearticleemphasizestheimportanceofincludingSMEintheSwissattempttodecentralizetheenergymarket.

简介：Thispaperproposesakindofmodulationarchitectureforwavelength-division-multiplexingpassiveopticalnetwork(WDM-PON)employingopticaldifferentialquadraturephaseshiftkeying(DQPSK)downstreamsignalsandtwodifferentmodu-lationformatsofre-modulatedupstreamsignals.Attheopticallineterminal(OLT),10Gbit/ssignalismodulatedwithDQPSK.Attheopticalnetworkunit(ONU),partofthedownstreamsignalisre-modulatedwithon-offkeying(OOK)orinverse-return-to-zero(IRZ).SimulationresultsshowtheimpactonthesystememployingNRZ,RZandcarrier-suppressedreturn-to-zero(CSRZ).Theanalysesalsoreflectthatthearchitecturecanrestrainchromaticdispersionandchannelcrosstalk,whichmakesitthebestarchitectureofaccessnetworkinthefuture.

简介：我们试验性地表明并且分析10Gbit/s完整的双波长部门multiplexing被动光网络(WDM-PON)系统。non-return-to-zero调音的微分阶段移动(NRZ-DPSK)调整技术首先为downlink方向被利用，然后downlink信号每隧道与10Gbit/s的数据率用调音的开关(OOK)的紧张调整技术为uplink方向被重新调制。一个有效无色WDM-PON完整的双传播系统与低力量惩罚在25km的距离上与60GHz的隧道间距每隧道为10Gbit/s的数据率被完成。

简介：一薄轧了带的电影，在2-inch-diameter蓝宝石底层上成年，被激光起飞分开。原子力量显微镜学(AFM)和双水晶X光检查衍射(XRD)被采用了描绘表演在起飞过程前后轧了。分离和转移过程不改变水晶质量，这被表明显然轧了电影。InGaN/轧了multi-quantum-wells(MQW的)结构以后在分开的蓝宝石底层上是成年的并且与由使用PL和XRD光谱在一样的条件下面在常规底层上成长那相比。