Change of characteristics of desulfurization and denitrification by combustion flue gas composition and electrode configuration under pulsed corona discharge

Laboratory-scale and parametric experiments of SO₂ and NO_x removal from the simulated combustion gas by pulsed corona discharge have been performed by changing the combustion gas composition and temperature, the electrode configuration of plasma reactor, and the polarity of high-voltage electrode. The following results are obtained: 1) the higher the concentration of H₂O and O₂, the higher the efficiency of desulfurization and denitrification at the same specific input; 2) the pulsed corona discharge with a voltage pulsewidth as short as 200 ns of negative polarity shows the possibility to attain almost 90 percent deSO_x and deNO_x efficiency at the specific discharge input of 20 J/g, which is almost the same as the specific input in the electron-beam process; 3) the deNO_x characteristics show a little temperature dependence in the range of 70 to 130°C, but the deSO_x efficiency increases rapidly in the temperature region below 100°C suggesting the thermochemical dependence of deSO_x reaction; 4) when desulfurization and denitrification proceed, the white dendritic powder deposits on the plasma reactor whose composition is identified to be 49 mol% (NH₄)₂SO₄ and 47 mol% of 2NH₄NO₃ · (NH₄)₂SO₄, and the ratio of SO₂, NO and NH₃ of the deposit is almost equal to that of supplied gas.     

电子电气设备的熔断器、断路器保护

熔断器、断路器是电子电气设备最常用的保护电器,熔断器可以实现过载、短路保护,断路器除具上述功能外,还能实行失压保护.根据线路特点和所保护的设备,采取相应的保护设施,确保用电安全.     

氨合成塔出口氨含量偏低原因分析及对策

阐述UHDE合成塔运行现状 ,分析氨净值达不到设计值的原因 ,提出相应的解决措施     

短脉冲激光与岩石相互作用机理初探

石油开采过程中，为增大原始岩体的渗流速度，一般采用水压致裂或射孔弹的方法来加以实现，但两种方法都存在一定缺陷。为探索一种新概念石油开采技术，即采用激光技术增大原始岩体的渗透率，对短脉冲激光辐照自然、饱水和饱油状态的花岗岩、大理岩和红砂岩的响应作了初步研究。得到了激光辐照下，岩石试样内烧蚀坑的三维形态以及烧蚀状态与脉冲数的初步关系。结果表明：脉冲激光可以在试样局部产生一定的裂纹；饱油试样的烧蚀情况较饱水和自然状态更严重。但对于产生的裂纹数量，尺寸以及方向等方面的控制尚需进一步的工作。     

Short cue presentations encourage advance task preparation: A recipe to diminish the residual switch cost.

In the task-switching literature, it has frequently been demonstrated that although advance task preparation reduces the switch cost, it never really eliminates the switch cost. This remaining residual switch cost received much attention, and it has been argued that advance preparation is restricted in nature. In the present study, the role of task-cue presentation in the establishment of the residual switch cost was investigated. In 4 experiments, the cue was removed during the preparation interval, and it was hypothesized that this would encourage participants to complete advance task preparation. The results of all 4 experiments provided support for this hypothesis: When the cue was presented for a short time and then removed, the residual switch cost completely disappeared. This was found for different cue types. Furthermore, Experiment 3 demonstrated that it was not the presence of the cue itself but merely differences in advance task preparation that caused the effects. This suggests that advance task preparation is not as restricted in nature as previously assumed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

不连续增强镁基复合材料的界面行为

综述了近年来国内外关于Ａｌ２Ｏ３短纤维、ＳｉＣ晶须、ＳｉＣ颗粒、Ｂ４Ｃ颗粒增强镁基复合材料的界面结构及其对复合材料性能影响的研究进展，并对今后的研究提出了一些看法。     

10Gbit/s甚短距离传输系统接收模块研究

本文研究了符合OIF—VSR4—01．0规范的甚短距离（VSR）并行光传输系统转换器集成电路，实现了接收部分转换器集成电路中帧同步、8B／10B解码、12路通道去斜移、检错纠错等模块的设计。在Altera的Stratix GX系列的FPGA上实现了接收部分转换器集成电路。仿真分析的结果表明所设计的各个模块能正确的实现接收部分转换器集成电路的功能，给出了仿真结果。     

CAN总线技术在贮煤筒仓安全监测系统中的应用

本文给出了一种基于CAN总线的贮煤筒仓安全监测系统的设计与应用，介绍了CAN总线系统的基本工作原理，并对系统的整体结构、硬件配置、软件功能及各节点功能分别作了说明。实验表明，该系统具有结构简单、可靠性高、安全性好、性能价格比高等特点，对实现目前火电厂贮煤筒仓安全监测系统本质安全化运行有一定的参考意义。     

微波感应式电力线防盗在线监测系统

研制了一种微波感应式配电线路防盗在线监测系统，简述了其系统构成、技术特点和应用效果。整个系统由监测分机、监控中心、巡检人员组成，借助该系统进行了一系列实验。结果表明，当有大型移动物体靠近或攀登杆塔时，安装在杆塔上10 m左右的微波感应监测分机感应到移动物体信号，一方面进行语音警示，另一方面通过短信服务及时向监控中心发送短信，监控中心及时通知巡检人员，赶到事故现场，以最大限度地保证输电线路的安全。     

固定网综合信息平台的建设

详细介绍了中兴ZXF118固定网综合业务信息平台的结构、建设方案及其组网方案。