阳极

In an electrolytic cell with proton exchange membrane as the diaphragm, it was found from the electrooxidation of 3-picoline at a PbO2 electrode in acetone/water mixed solvents that the current density at the same anode potential not only increases remarkably, but also the selectivity and the current efficiency of electrooxidation from 3\|picoline to nicotinic acid increase obviously compared with the pure water as the solvent.

在以质子交换膜为隔膜的电解槽内，通过3-甲基吡啶在PbO2电极上的电氧化研究，发现在丙酮-水混合溶剂中，与纯水作溶剂相比，不仅在相同阳极电位下电流密度大幅度上升， 3-甲基吡啶电氧化生成烟酸的选择性和电流效率也明显提高。

The corrosion resistance of nanocrystalline nickel wascompared with that of Watt nickel and polycrystalline nickel plate in thesolution of NaCl and HCl by the methods of static soak and polar anodicpolarization curve and the mechanism of corrosion was analyzed. Themechanical property of nano- crystalline nickel was evaluated by macroscopictension and the microscopic process of deformation and fracture was observedby in-situ tension test under TEM.

在此基础上，采用差热分析、XRD 及 TEM 等手段研究纳米晶体镍的热稳定性；利用静态浸泡、阳极极化曲线等方法研究纳米晶体镍的耐蚀性能；采用宏观拉伸的方法考察了纳米晶体镍的力学性能，并用 TEM 原位拉伸法观察纳米晶体镍形变与断裂过程的微观过程。

It can sample voltage and current online, control alumina content and regulate polar distance, analysis and report cell noise, predict the anode effect and warning with sound and light, keep watch on and control artificial schoolwork process. At the same time it can connect with monitoring computer to exchange data and receive parameters, which are tuned and optimized by monitoring computer. And this can make the control to the aluminium electrolytic cell more accurate and reliable.

它能在脱机状态下独立完成电压、电流的在线采集，正常槽况下的准连续按需下料控制与常态极距调节、槽噪声解析与报告，阳极效应预报与声光报警，人工作业工序监控等功能，能在联机状态下与监控机交换数据，并接收来自监控机的参数整定与优化，使对电解槽的监控更为精确和可靠。

The control system for tank can finish independently mostly control functions. It can sample voltage and current online, control alumina content and regulate polar distance, analysis and report cell noise, predict the anode effect and warning with sound and light, keep watch on and control artificial schoolwork process.

在广泛收集专家控制经验与知识的基础上总结出新的控制策略，能在脱机状态下独立完成电压、电流的在线采集，正常槽况下的准连续按需下料控制与常态极距调节、槽噪声解析与报告，阳极效应预报与声光报警，人工作业工序监控等功能，能通过CAN总线与监控机交换数据，并接收来自监控机的参数设定与优化，使对电解槽的监控更为精确和可靠。

Methods: The method of using the Ag-Hg film electrode is combined with classical polarograph.

采用银汞膜电极阳极溶出伏安法与经典的883笔录式极谱仪联用，并进行了内部电解法以提纯底液，使之空白为零。

By means of electric potential method and anodic stripping voltammetry , the trace Cd~(2+) in the soil samples of rich iron content can be determined by a 883—model polarograph, with the mercury membrane electrode of silver base sphericity as the indicating electrode and a large area of sheet—silver electrode as the reference electrode.

本文应用电位法，采用银基球型汞膜电极为指示电极，大面积银片电极为参比电极和883型极谱仪，阳极溶出法测定大量铁存在下的土壤样品中痕量镉。

The common-anode junction of all the twelve LEDs is connected to the collector of pnp transistor T2 and the emitter of transistor T2 is directly connected to the positive terminal of 6V battery.

在所有12个LED的共阳极交界处，是连接到T2的集电极PNP晶体管的发射极和T2晶体管是直接连接到6V的电池正极。

The third winding is coupled between the primary winding and a capacitor to produce a current that controls a variation of a ratio between the focus voltage and the anode voltage as a function of variation in a beam current in the cathode ray tube.

在初级绕组和电容器之间连接第三绕组，从而产生一个电流，该电流用于对作为阴极射线管中电子束电流的变化的函数的聚焦电压与阳极电压之间的比率的变化进行控制。

The setup is made of x-ray tube, fine tuning table, vacuum system, gas-flow proportional counter and multiple channel analysis.

实际测得了流气正比计数管阳极高压、工作气压和环境温度对软X射线荧光测量装置测量误差的影响。

The anodic oxidation reactions of borohydride ion involves a novel and complex reaction system of three hydrogen valence states: protide H(superscript --protium H(superscript 0*-proton H(superscript +. Based on cyclic voltammetry and polarization studies, a multi-step mechanism for the oxidation of BH4-on Cu anode in NaOH solution was presented, and a kinetic expression containing the coverages of BH(superscript - subscript 4) and OH-adsorbed on the surface of Cu anode was deduced by the steady state approximation theory.

鉴于BH(上标-下标 4)阳极氧化反应涉及一个复杂的氢负离子H(上标-下标 4)－氢单原子H(上标 0*)－质子H之间价态转化的新颖反应体系，在循环伏安和极化实验研究基础上，提出了NaOH溶液中BH(上标-下标 4)在Cu电极上氧化反应的多步骤机理，导出了包含表面吸附态BH(上标-下标 4， ad)和OH覆盖率θ和θ的电极反应动力学方程。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。