阴极电流

Three kinds of BCRC No.51534, 10322 and 10675 would be selected and acted as an experimental sample of Escherichia coli. Results shows that Escherichia coli of No.51534 will appear better performance because the maximum of open circuit voltage, closed current and power density are 1.01V, 22mA and 1342mW/m2, respectively. Concerning the effect of culture time with respect to different phase type on the electricity performance of MFCs, the time points on the intersection between lag phase and logarithmic phase, the middle of point of stationary phase for growth curve of Escherichia coli would appear a good performance of MFCs. In addition, the BCRC No. 51534 Escherichia coli possessing a better performance of MFCs than others would be suggested and applied to further studying. Comparison with the performance of MFCs with respect to electron mediator under different mole number, result shows that electron mediator of methylene blue with 4.63mM would appear a better electricity performance of MFCs than others. Concerning the different material of proton exchange membrane with PTFE-Nafion, Nafion 211, 212 and 117 with respect to the performance of MFCs, result shows that the Nafion 117 applied in MFCs will have a better performance of MFCs than other cases. Finally, the effect of molar concentration on the performance of MFCs would be expected at the studied cases of 0.4M, 0.2M, 0.1M and 0.05M respectively for cathode oxidant, result shows that a good performance of MFCs will happen at the condition of 0.2M. Those observations will be useful to improvement of MFCs in the further study.

於上述电池系统条件下，进行大肠杆菌生长曲线、电子传递介质、质子交换膜、电极与阴极氧化剂对电池电性效能分析；选择编号10322、10675与51534之大肠杆菌为实验菌株，依定量培养之生长曲线取出代表不同时生长特性时期的培养时间，利用亚甲基蓝作为电子传递介质进行实验分析从所测得的电量进行分析，以编号51534之大肠杆菌的微生物燃料电池有最大的开路电压为1.01V及最大闭路电流为22mA；当极化曲线中电压为0.47V、电流为11.4 mA时有最大的功率密度为1342 mW/m2；加以负载有平均工作功率密度294 mW/m2；从生长曲线与电性效能来分析，得知生长曲线的迟滞期与对数期的转变点与静止期的中间点有最佳电性效能表现；对於加入不同莫耳数之电子传递介质methylene blue、neutral red与thionine之电池效能表现，则以加入4.63mM methylene blue电子传递介质的电池有较佳平均功率密度230 mW/m2；另对於质子交换膜PTFE-Nafion、Nafion 211、Nafion 212与Nafion 117之电池效能表现，以Nafion 117质子交换膜的电池有较佳平均功率密度340 mW/m2；对於分析加入不同莫耳数浓度0.4M、0.2M、0.1M与0.05M的阴极氧化剂之电池效能，则以0.2M的阴极氧化剂的电池可得到较佳平均功率密度429 mW/m2。

The TCC technology was successfully applied to two of 160kA prebake cells in Pingguo Aluminum Company. It was shown that no tear-off of TCC was indicated after starting up of the cells. The operation of coating cells was improved to keep good shape of cell chamber, reduce the formation of sludge on the cell bottom, and gain more uniform current distribution.

将TIB：阴极涂层技术在160kA大型预焙槽进行了应用，并考核了涂层槽的指标，结果显示，焙烧启动后，TIB：阴极涂层不脱落，涂层槽的工作状态良好，炉膛规整，炉底干净，电流分布均匀；与对比槽比较，阴极内衬对钠的吸收减少，钠渗透速率减缓，炉底压降降低(平均降低39mv)，电流效率提高(平均提高0.41%)；涂层的寿命为38个月。

A hypothetical drained cell model retrofitted from a 160kA Hall-Heroult cell was set up to calculate the current distribution in the cathode when the anode bottom and cathode top surfaces were declivous. Two half anode-cathode slice thermo-electrical models with the collector bars installed slopingly or horizontally were adopted to calculate the potential drop and electricity distribution of the cathode.

摘 要：将某厂现有的160kA Hall-Heroult铝电解槽改造成导流槽后，在阴极上表面和阳极底面呈斜坡状的条件下，计算了采用不同阴极导杆安装方式时阴极的电位和电流分布，即通过建立导流槽内部从阳极到阴极的一个半切片电热场模型，用有限元法分别对水平和平行于阴极斜坡两种不同导流槽阴极导杆的安装方式下阴极电位和表面电流密度分布进行了计算。

The experiment of the auxiliary heated arc plasma generator shows that thekey arc root has contraction under the condition of having magnetic field when thekey arc root is at the edge of the cathode surface.

在辅助加热电弧等离子体发生器的实验中看到：在有外磁场的情况下，主弧弧根在阴极边缘时，弧根有收缩的迹象，而当主弧弧根在阴极中心附近时，观察不到明显的弧根收缩迹象，并拍摄到有双弧柱的图片；当关掉磁场和弧电流〓时，主弧在阴极和阳极之间稳定的燃烧，主弧弧根稳定在阴极中心附近的一点上，而且弧根没有收缩的迹象，主弧弧根亮区的直径约为6.8毫米，与弧柱段的亮区直径相差无几；因而从实验结果分析可以看出，阴极表面温度的升高，能使主弧弧根直径增大：另一方面，由于主弧弧根直径的增大(即也意味着主弧弧根截面积的增大)，因而使电弧通过主弧弧根传入阴极表面的有效比热流降低，从而减少了阴极烧损。

The of pulse frequency,cathode current density,SiC in bath,bath temperature on the SiC content in the coating were discussed.

讨论了脉冲频率、阴极电流密度、镀液中S iC含量、镀液温度对镀层中微粒含量的影响。

The influence of electrolyte composition,electrolysis temperature, cathode current density and feedrate on the production efficiency is discussed.

对电解氧化镨制取金属镨的小型试验和3000A电解槽的生产作了简要介绍，探讨了电解质组成、电解温度、阴极电流密度、加料速度对工业生产效果的影响。

The cathode current density and the fluid field relevant to the growth of electroforming layer is studied with numerical analysis to explore the inherent laws of micro-electroforming that is a key technology of UV-LIGA.

研究了LIGA/UV-LIGA的核心技术微电铸的内在规律，对影响铸层生长的阴极电流密度和流体流场进行了数值分析。

Electrochemical chloride extraction technique has been developed. The ECE instrument for reinforced concrete has been designed and set up in the laboratory. The electrochemical treatment was performed using a cathodic current with platinized titanium mesh as the external anode.

以镀铂钛网为临时阳极，对混凝土中钢筋施以阴极电流进行电化学处理，并以钢筋混凝土样品中不同位置埋置的Ag/AgCl电极作为Cl~-探针。

Results indicated that the cathodic current efficiency of the bath for zinc-iron alloy electroplating was 73%(that for zinc plating was l0.68%), and the throwing power was 100%(that for zinc-plating is 85%).

结果表明：合金镀液的阴极电流效率为73%，深镀能力为100%，合金层中含铁量为0.4%-0.8%；经钝化后，其盐雾试验出现白锈时间为240h（镀锌层为94~144h）。

The microstructure of silver-plated graphite powders was characterized and analyzed by Scanning Electron Microscope.

研究了镀液中硝酸银浓度、石墨粉加入量和阴极电流密度等工艺条件对镀银石墨粉含银量和电镀效果的影响。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。