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Under normal circumstance and with the existence of positive electrotonil,the action potential amplifude of ischium nerve frunk of normal toad increases as its wave width broadens, and decreases as the electrode distance shortens.

在情况正常及阳极电紧张存在时,正常蟾蜍的坐骨神经干的动作电位之幅值,随其波宽的增加而增大,随电极间距离的增大而减小;阳极电紧张的存在,降低了动作电位的幅度。

That is less copper anion in the environment. PASP has the effect of corrosion inhibition in hydrochloric acid solution. In addition the potation of cathode summit current turned negative as increasing PASP concentration, and the potential of anode summit current turned positive, it can constrain the corrosion of copper. That is to say PASP is a mixed corrosion inhibitor and can constrain the corrosion of copper surface.

循环伏安测试结果表明: PASP的加入同时抑制了铜表面的阴阳极反应,使阴极峰和阳极峰电流都减弱,说明此环境中的铜离子的含量较少,PASP对铜在盐酸中有缓蚀作用;另外阴极峰电位随着PASP添加浓度的增大而依次变负,而阳极峰电位依次变正,抑制了铜的腐蚀,说明PASP是混合型缓蚀剂,有效地阻止了铜表面的腐蚀。

The results indicated that substrate sandblast contributed to enhance the adhesion between the titanium substrate and the MMO coating, while increasing in the coating mass led to increased durability of the anode, and the coating consumed rate of the coated anode was almost zero.

所研制的RuIrTiSnCo涂层钛阳极具有良好的电化学稳定性和较长的寿命,强化寿命达到96h,约为次氯酸钠发生器标准的5倍,是海水介质外加电流阴极保护中比较理想的辅助阳极。

In this process, the discharge process of single point to point contact is transformed to the process of both point to point contact and the overall surrounding contact of sphere Ni through the self redox reaction, thus making a highly efficient electron transfer process. In this dissertation, the catalytic electrolysis mechanism is discussed. The influence of various parameters (e.g. kind and concentration of catalyst, reaction temperature and electrolysis duration) on electrolysis were investigated.

本文首次提出了以KMnO_4为代表的高锰酸盐作为电解过程电子传递的媒介,通过锰盐自身氧化还原反应的参与,在阳极和溶液中的球形Ni_2之间建立起高效的电子转移过程,使球形Ni_2和阳极之间单一的固体之间的点点接触放电,转变为点点接触放电和球镍与溶液全方位包围接触放电过程,大大提高了电解过程的效率。

The main factor affecting the frequency characteristic were given as the following:the coefficient of corrosion of the Al foil surfaces the figure of the hole of scorrosion,and the character of the oxide film on the surface of the anode and cathode;the fabric of the unimpregnated liner in the capacitor,as well as the resistance and steeping of the working electrolyte and the construction of the capacitor.

影响频率特性的主要因素有:阴极和阳极铝箔表面腐蚀系数的大小及腐蚀坑洞的形状;阴极和阳极铝箔表面氧化膜的性质;电容器中衬垫纸的构造;工作电解液的电阻和浸渍情况以及电容器的内外结构尺寸等。

This paper regards the copper electrolyze anode product line under electricity-hydraulic controlling as its researching object and studies the technology on hydraulic malfunction diagnosis thoroughly, it also analyzes integrate the methods of malfunction diagnosis and the malfunction forms of hydraulic components. Basing on this knowledge, this paper designs a process surveillance system for hydraulic pump of anode product line.

本文以电液控制铜电解阳极生产线为研究对象,具体到生产线液压系统的动力来源——液压泵,对液压故障诊断技术进行了较为深入的研究,对故障诊断的方法、液压泵的故障形式进行了综合分析,在此基础上,设计了阳极生产线生产过程中液压泵的监视系统。

During the production of 200 kA pre-baked aluminum smelting pot,through the repairment of the burning and scraping damages which often occur on the contacting surfaces between anode bus bar and aluminum rod,the matter of loose contact caused by increase of power resistance and decrease of power voltage is efficiently solved,resulting in evident achievements of energy saving and economic benefits.

在200 kA预焙电解槽生产过程中,通过对阳极母线与铝导杆接触面经常出现的烧损、拉伤的修复,有效地解决了阳极母线与铝导杆接触不良导致的电阻增大、电压降升高的问题,节约了能源,经济效益显著。

It is considered that the experimental results coincide with the simulating results.The simplified graded inertia anode model is provided from the improvement of the first 2-D graded model. This model is made of cup-shape section, core bar and plugging compound. ANSYS FEM software is used to compute the distribution of the thermal stress in the model.

针对第一种二维梯度阳极模型存在的缺陷进行改进,设计了一种简化的梯度阳极模型,整个模型由外部杯状结构(NiFe_2O_4+Ni)、芯杆(1Cr12WMoV合金钢)、中间填充层(NiFe_2O_4+Cu)三部分组成,由于这三部分的热膨胀系数、弹性模量等物性参数是呈梯度缓慢过渡的,因此可以把这个模型看成是广义的梯度模型。

We put zinc sulphide mine into different sulphate system and analyzed polarization curve about anodic oxidation.we found that the mine was oxidized effectively and the rapid oxidation happened when we adopted the zinc sulphide ore suspension electrolyte which contained ZnSO_4,(NH_4)_2SO_4 and H_2SO_4. This system was suffice to product metal zinc industrially. The appropriate suspension electrolyte composition consisted of zinc 90~130g/l,(NH_4)_2SO_430~50g/l, H_2SO_430~50g/l, suspension electrolysis temperature 50℃, anodic oxidation potentiometer 0.6~0.8V.

研究了硫化锌矿在不同的硫酸盐体系中的溶解,通过阳极氧化极化曲线进行分析,得出当以硫酸锌、硫酸铵和硫酸作为硫化锌矿悬浮电解液时,矿物能够有效地被氧化,氧化速度最快,能满足工业上生产金属锌的要求,并且合适的悬浮电解液组成为:锌90~130g/l,硫酸铵30~50g/l,硫酸30~50g/l,悬浮电解温度40~50℃,阳极氧化电位0.6~0.8V。

Porous alumina templates with different apertures were fabricated by changing the oxidation voltage in two-step anodic oxidation, and then Cu nanowires were synthesized in porous alumina by the alternating current electrochemical deposition method. The Cu/PAA was analyzed by SEM and XRD, the results have shown that Cu nanowires were indeed synthesized in porous alumina which had the same diameter and good structure of wire grating.

通过改变二次氧化过程中的氧化电压,制备了不同孔径的多孔Al模板;采用交流电沉积的方法,制备了含Cu阳极PAA膜。X射线衍射分析表明,阳极PAA膜上确有Cu生成;扫描电镜显示,Cu纳米线粗细均匀,具有很好的线栅结构。

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