电极的

A gas diffusion electrode is one of the most important components of a zinc-air battery.

气体扩散电极是锌空气电池的重要组件之一。

Objective: To study the influence of radiofrequency ablation on the level of IL-8 in patients with primary hepatocellular carcinoma.

目的：探讨多电极射频消融治疗原发性肝癌对患者血清IL-8的影响。

It was found from experiments that graphite felts were suitable for electrode active materials, which were conductive, hydrophilic, acidproof and reaction active.

优选出合适的电极材料—石墨毡，它具备导电性、亲水性、耐酸性以及反应催化活性。

The electrochemical controlled release of neurotransmitter adenosine 5'-triphosphate was carried out successfully by polypyrrole films.

本文利用聚吡咯膜修饰电极成功地实现了神经递质三磷酸腺苷的电化学控制释放。

A glass die, a micro replication characteristic of PDMS and an electroplating technology are used to make the three-dimensional microelectrode array. A precise cutting machine is used to cut the glass to form a column array and a mixture of HF and NH4F is used to produce the corresponding structure serving as the die of the micro replication of PDMS. The photoetching technology is left out and the limitation of a photoresist on the dimension of the three-dimensional structure is eliminated; therefore the longer microelectrode array can be made. The length of the microelectrode array depends on the incision depth of the glass and the electroplating technology of deep hole of the metal.

本发明利用玻璃模具、PDMS的微复制特性和电镀技术制作三维微电极阵列，用精密切割机切割玻璃形成柱状阵列，用HF和NH 4 F的混合液腐蚀出相应的结构作为PDMS微复制的模具，免去了光刻工艺，消除了光刻胶对三维结构尺寸的限制，可以制作更大长度的微电极阵列，这一长度决定于玻璃的切割深度和金属的深孔电镀技术。

Their electrochemical behaviors for single solute and mixed systems of hydroquinone(H2Q) and pyrocatechol are investigated.A pair of redox peak of H2Q and two pairs of redox peaks of PC on the composite film electrodes can be obviously distinguished in their mixed systems,which show the composite film electrodes have excellent electrocatalytic activity for two ...

结果表明聚苯胺复合膜电极具有很好的电催化作用，在混合体系中对苯二酚的一对氧化还原峰和邻苯二酚的两对氧化还原峰能够清楚地区分；并且在一定的浓度范围内单组分的浓度与峰电流呈良好的线性关系，说明该电极对苯二酚的测定在定性、定量中具有潜在的应用价值。

The principle and three adding methods of additives carbon for elevating utilization rate of electrode materials were introduced;The forming methods of barium plumbate membrane for preventing corrosion of positive electrode grid were analyzed;The effect and principle of additive calcium sulfate for improving the high rate discharge performance of VRLA batteries were reported.

综述了电极和电解液一些添加剂的作用及其在阀控铅蓄电池中的应用情况；介绍了提高电极活性物质利用率的添加剂的3种添加方法和原理；分析了防止正极板栅腐蚀的添加剂在板栅表面形成铅酸钡膜的3种方法；报道了硫酸钙添加剂在改善高倍率放电性能方面的效果和工作原理。

The method is as follows that the two ends of a nanometer are fixed on two pivots and an axial micro-pulling force T is applied on the nanometer; an electrode is arranged on the middle part of the side of the nanometer and an alternate voltage is applied on the electrode to motivate the nanometer to generate resonance, and therefore, the natural frequency f of the nanometer is measured and acquired; according to the material characteristics and the geometry characteristics of the nanometer as well as the boundary condition of the nanometer material, the relation between the natural frequency and the axial pulling force of the nanometer, namely the f-t curves of the nanometer, can be calculated by a vibration equation; according to the measured natural frequency f, the size of the micro-pulling force T can be acquired.

该方法将一根纳米材料的两端固定在两个支点上，给纳米材料施加一个轴向的微小拉力T；在纳米材料的侧面，位于该纳米材料的中部放置一个电极，在电极上施加一个交变的电压激励纳米材料使其发生共振，测得纳米材料的固有频率f；根据纳米材料的材料特性和几何特征以及纳米材料的边界条件，由振动方程计算出该纳米材料的固有频率与所受的轴向拉力的关系，即纳米材料的f-T曲线；根据上述测得的固有频率f，得到微小拉力T的大小。

Based on both the strong-weak model and the strong-strong model, the instability caused by ions in equilibrium is simulated, some useful results are obtained. The results include the relation between instability growth rate and neutralization factor, the relation between instability threshold and neutralization factor, and the incoherent tune shift, the tune spread, the ion cloud distribution, the ion loss mechanism, as well as the ion accumulation limitation in the storage ring. With this understanding, we have carried out theoretical and experimental study for some ion clearing methods and their effects for the HLS ring. The minimum static clearing voltage is determined through calculating beam electric field and measuring ion current.

在上述基础上，我们对各种离子清洗的方法及清洗效果进行了理论和实验的研究：通过计算束流电场和测量清洗电极上的离子流来确定直流清洗电极所需的最小清洗电压；通过测量离子引起的频移来计算储存环的中性化系数；用模拟计算和实验测量证实了高频清洗能有效地克服储存环上离子俘获不稳定性；对由高频剔除系统形成的储存环部分束团填充模式下的离子俘获问题进行了初步研究，证实采用束团部分填充模式能在一定范围内克服离子俘获效应；并对各种离子清洗方法进行了比较。

The results show that:(1) MnO2 deposition on the surface is the main factor resulting in cathode polarization, and the flowing of the solution can remarkably reduce this polarization. Furthermore, the buffered solution can reduce the polarization resulting from H+ concentration difference;(2) it is deduced from the polarization curve that the key factor influencing the performance of MFC is microbial number and metabolic rate and the electron transferring rate from microbial to electrode;(3) the power density arrives at the biggest, 824 mW/m2, when outer resistance is 300 Ω, which is accordance to the inner resistance,(284±18)Ω, deduced from I-V curve;(4) the influences of pH and permanganate concentration on cathode potential is in agreement to Nernst equation.

研究结果显示：(1) MnO2在碳纸表面的沉积是阴极极化的主要原因，而溶液流动可以明显降低极化程度；将高锰酸钾溶解在缓冲溶液中可以进一步降低阴极H+浓差极化；(2)根据极化曲线可以推断，影响电池输出功率的决定性因素应是微生物代谢反应速度和微生物与电极之间的电子传递速率；(3)随外电阻的变化，电池输出功率出现极大值824 mW/m2，相应外电阻为300 Ω左右，这与通过 I-V 关系曲线推导得到的电池内阻(284±18)Ω相吻合；(4) pH值和高锰酸钾浓度对电池阴极电极电势的影响符合Nernst方程。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。