摘要：The recen tly cons true ted cryogenic cylindrical ion trap velocity map imaging spectrometer(CIT-VMI)has been upgraded for coincidence imaging of both ionic and neutral photofragments from photodissociation of ionic *** prepared ions are cooled down in a homemade cryogenic cylindrical ion trap and then extracted for photodissociation *** th the newly designed elec trie fields for extraction and acceleration,the ion beam can be accelerated to more than 4500 eV,which is necessary for velocity imaging of the neutral photofragments by using the position-sensitive imaging detect *** setup has been tested by the 355 nm pho todissocia tion dynamics of the argon dimer cat ion(Ar2+).From the recorded experimen tal images of both neu tral Ar and ionic Ar+fragments,we interpret velocity resolutions of△v/vu4.6%for neutral fragments,and△v/vul.5%for ionic fragments,respectively.

摘要：根据无线调车机车信号与监控系统(简称STP系统)车载设备的工作原理和结构特点,分析了车载设备库内维护和检修的现状,提出了一种便携式车载检测设备(简称检测设备)的设计方案。该方案中检测设备采用锂电池供电,通过电台或者串口与STP系统车载主机进行通信,对车载主机与机车各设备的通信状态以及车载主机运行状态进行检测,达到对STP车载设备检测和检修的目的。

摘要：2011年10月28日,一档全新的唱歌表演类综艺节目《银鹭歌声传奇》同时在山东卫视和优酷网上线播出,为银鹭食品和山东卫视的战略合作拉开了序幕作为这个项目的全程参与者,此前的忙碌、纠结和艰辛好像一下子都变成了"浮云",在这一刻,立马觉得所有的付出都是非常值得的。