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    This paper mainly introduce the constitution of the VXI bus test system, demonstrate the configuration and usage of the HP E1441A module and do some related test of AWG combining with the MIO-64XE-10 module .
    本文介绍了VXI总线测试系统的组成,简要说明了HPE1441A任意波形发生器模块的配置和使用,并结合64通道的MIO-64XE-10模块对任意波形发生器的性能指标给予了相关测试,重点测试了模块的性能指标,包括模块输出信号的频率精度,波形的稳定度。
    We discovered the complex of Boron and Beryllon Ⅲ produces a well- defined polarographic wave with peak potential at-0.46V(vs SCE)in a buffer solution of NH_4AC—HAC(PH3.5~4.5).
    本文发现、在 pH3.5—4.5的NH_4AC-HAC 缓冲溶液中,硼与铍试剂Ⅲ可形成一种1:1的稳定的电活性络合物。 此络合物于-0.46V(vsSCE)处产生一个非常灵敏的极谱波峰,波形稳定正常,检测下限可达0.004μg/ml。
    The polarographic behavior of norfloxacin in various buffers is studied. It is found that the normal and derivative single-sweep oscillopolarographic wave (peak) at about -1.4 volt (vs. SEC) is obtained excellently when KH_2HPO_4-Na_2HPO_4 buffer solution of pH 7 is used. The peak is visible.
    研究了氟哌酸在多种缓冲液中的极谱行为,发现在pH7的KH_2PO_4—Na_2HPO_4缓冲液中于-1.4V(相对于SCE)左右获得示波极谱的常规波和导数波,其波峰清晰、波形稳定且易于测量。
    It has been found that stable and sensitive polarography wave of thorinm(Ⅳ) can be obtained at the maximum potantial of -1.68V in NaAc-HAc buffer medium of about pH 5.4 containing 0. 003% tetrabutylamomium iodide and cupferron.
    在pH5.4的乙酸-乙酸钠介质中,当有浓度为0.003%的四丁基碘化铵和0.04%的铜铁试剂存在时,钍(Ⅳ)在峰电位为-1.68V处产生灵敏配合物吸附波,波形稳定,选择性好。
    The followup study revealed that, when the psychiatric symptoms remitted, the waveform of their BEPs became more steady, amplitude N1P2 of VEP and P2N2 of SEP was increased (P<0.05); The amplitude P2 of AEP and VEP, and P1 of AEP, was increased into the normal range.
    随访提示,患者组康复时波形稳定,VEP/N1-P2和SEP/P2-N2波幅增高,AEP/P2、VEP/P2以及AEP/P1数值恢复至正常对照内(P<0.05)。
    Results:The common characteristics of the potentials were good frequency response,easy identification and lower responsive threshold.
    结果:两种电位的共同特点是频率响应好,波形稳定,易辨认,反应阈值低; 40 Hz A E R P- E L R 的振幅与声强始终成正比。
    Result:Triphasic negative positive negative evoked potentials were recorded from the surface of the frontal head close to olfactory bulb. Latent period of three waves respectively was N 1 20.6 ms, P 1 33.5 ms, N 2 58.3 ms.
    结果 :在颅顶前方近嗅球处记录到一组波形稳定的N1 P1 N2 3相复合波 ,潜伏期为 :N1波 2 0 .6ms ,P1波 33.5ms ,N2 波 5 8.3ms;
    The latency and amplitude of F-VEP wave, were recorded and statistically. Results The F-VEP wave was reliably displayed with characteristic curve. The L5b was(53.67±3.12)ms and A5 was(17.83±5.91)μv.
    结果 正常大鼠F VEP波形稳定 ,主波潜伏期 (L5b)为 5 3 6 7± 3 12ms,振幅 (A5 )为 17 83±5 91μV。
    The software MAX+PLUSⅡ is used to simulate the function of CPLD,the result demonstrates that output waveform is stable and precise.
    笔者使用 MAX+PLUS 对 CPLD所实现的电机控制功能进行了仿真 ,软件仿真和试验结果均证明输出波形稳定、精确。
    In order to improve the output stability of LD pumpe d Nd∶YAG laser Q-switched by Cr 4+∶YAG,the direc tional prism resonator is used,a single smooth laser pulse has been achieved wi th the energy stability changing from 7.3%~2.2%,pulse-width stability changing from 13.5%~6.5%,repetition rate stability changing from 0.01%~0.005%.
    为了改善Cr4+∶YAG被动调Q激光器的输出稳定性,采用了定向棱镜谐振腔,通过实验得到了以下结果:单脉冲能量稳定度由7. 3%提高到2. 2%,脉宽稳定度由13. 5%提高到6. 5%,频率精度由0. 01%提高到0. 005%,输出脉冲波形稳定光滑。
    Its wave output is steady and in accordance with ISO7816-3. This scheme is a useful reference for designs of 3G terminal and high-speed ICC product line devices.
    传输数据波形稳定,符合ISO7816-3传输标准,对设计3G通信终端和高速发卡设备有借鉴意义。
    So using ABR individually to evaluate people's hearing thresholds could not get an accurate result. Using pure tone at 40/s as stimulus, recordings would write down a series of semi-sinusoidal waves with period of 25ms, which is called 40HzAERP.
    40HzAERP是指以40次/s的刺激声引出的周期约25ms的准正弦波,是中潜伏期反应的一个特例,其优点是具有频率特性、波形稳定、重复性好、幅值大易辨认,与V波反应阈相结合应用对于全面地评估听阈有重要的临床意义。
    In RS2 group,as the catheter was at the Kock triangle steady,with little A-wave and big V-wav, tachycardia was initiated with HAR stimulation , then single extrastimuli (RS2) were delivered from the ablation catheter tip beginning by 20 ms less than the tachycardia cycle length and decrementing by 10 ms until tachycardia terminated or loss of capture occurred . At last, the slow pathway was ablated at the site at which AVNRT was terminated with the longest coupling interval.
    RS2标测法:大头导管在Kock三角区心内电图记录到小A大V波、无H波,且心电波形稳定后,诱发心动过速,经大头导管发放RS2刺激,从少于心动过速周长20ms起搏频率开始,每次以10ms步长负扫,直至心动过速终止(或刺激不能夺获心房),最后在以最长联律间期RS2终止心动过速的位点消融。
    In anatomic-electrogram group,between His and coronary sinus ostium with LAO 45°as the atrial wave was smaller than ventricular wave (A:V<0.5) , and fragmentive, two-dimensional,steady,without His potential.
    解剖电图标测法:左前斜45°,大头导管在希氏束至冠状静脉窦口之间记录到房波明显小于室波(A:V<0.5)、碎裂、呈双向、无H波且心电波形稳定,作为靶点试消融。
    Whereafter every composite wave of the refracting layer is clear from T06 to T2, and the middle of the refracting layer has wealth of information. So the waveform is stable and continuously traceable. Lastly the direction of faultage is clear, and the breakpoint is unambiguous.
    (5)从最终的偏移中可以看出,剖面的信噪比较高,地质现象丰富,T06-T2-2各反射层波组特征清楚,反射层层次齐全,层间信息丰富,波形稳定,可连续性追踪。
    convenient,and is effective in detection of cranial nerve.
    TSEP波形稳定,重复性好,灵敏度高,是检测脑神经功能的有效手段。
    If the amplitude of the pulse is properly modulated, the above-effect iscompensated.
    当脉冲具有适当的幅度时,以上两种作用可以恰好抵消,则脉冲可以保持波形稳定不变地在光纤中传输,即形成了光孤子,也称为基阶光孤子。
    The rabbits in the first group were inserted the contact electrode on mucosa through duodenum peripapilla and record myoelectric activity of the SO.
    观察指标为SO锋电位(Spike Potentials of SO,SPSO)以及SO肌电簇(Myoelectronic activity of SO,MASO)。 结果:在21只使用CEM测量肌电的家兔中,全部满意的测量到了SO肌电,波形稳定,重复性好。
    The inverter is modulated by the SPWM (Sinusoidal Pulse Width Modulation), so we can get the high quality sinusoidal voltage wave, and reduce the harmonic.
    从逆变环节的实验结果来看,产生的SPWM波波形稳定、可靠,输出电压波形失真度小、电压波动率小,逆变效率高。
    The exciting light source, a free running discharge lamp, was made in this laboratory. It exhibits short pulse width (~5ns), broad spectral distribution (2000~6000) and hight repetitive frequencies (several ten KC per second). There were 10~8~10~(11) photons per light pulse.
    它的光源——自由放电灯是我们自己研制的,它的脉宽短(约5ns)、光谱分布宽(2000~6000)、重复频率高(每秒钟数十千周)、光脉冲波形稳定(幅度变化小于百分之五),每次光脉冲可发出10~8~10~(11)个光子。
 

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