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The testing results showed that the chances of success of AE prediction exceeded 90%.

测试结果表明,该方法的阳极效应预报成功率达90%以上。

They had suppressed the cathodic process of carbon steel electrode. Their inhibition performance was also related with their molecule stereo conformation and electron configuration. Four of bis-(1, 1'-benzotriazoly)-α,β-diamide compounds linked via-CO 〓CO-chain were synthesized and certified by IR and 〓H-NMR. The minimum energy conformations of these compounds were obtained by MM2 forcefield program. The two benzotriazole moiety in BBT1 was more planar than in other compounds. This was beneficial in increasing the inhibition effects of BBT1. In 0.5M H〓SO〓 solution, BBT1 suppressed anodic corrosion reaction. In 3%NaCl solution, BBT1 suppressed both cathodic and anodic corrosion reactions. 1- [ (1'-imidazolly)-methyl] benzotriazole was synthesized by Mannich reaction.

合成了四个通过-CO〓CO-连接的双(1,1'-苯并三唑)-α,ω-二酰胺化合物,采用MM2分子力学程序优化了它们的分子结构,双(1,1'-苯并三唑)-α,ω-二酰胺化合物的缓蚀作用与其分子内两个苯并三唑单元的空间取向有关系,良好的平面性有利于苯并三唑二聚体的吸附和缓蚀作用,苯并三唑二聚体BBT1分子内两个苯并三唑单元近似平行,所以显示出较好的缓蚀效果。0.5M硫酸中BBT1主要抑制铜的阳极溶解的电化学反应;3%NaCl溶液中,BBT1对铜的阳极溶解和氧的阴极还原过程均有抑制作用,相比较而言对阴极过程的抑制作用更大一些。

Simulation results also show that saddle-shaped distributed AMF can more effectively inhibit constriction of vacuum arc.

对于小电流扩散态真空电弧,重点仿真分析不同电弧电流与不同纵向磁场对其关键特性的影响,部分仿真结果进行了实验验证;对离子处于超音速流动的收缩态真空电弧的仿真表明,真空电弧的磁收缩主要是由于霍尔效应引起的,离子温度和电子温度沿轴向先增大后减小,马鞍形分布的纵向磁场能够更有效地抑制真空电弧的收缩,而且阴极斑点分布对真空电弧特性也有着显著的影响;对离子处于亚音速流动状态的大电流真空电弧的仿真表明,部分等离子体不能到达阳极而损失,马鞍形分布的纵向磁场能够更有效地抑制电弧等离子体的损失,同时能使阳极电流密度和能流密度的分布更加均匀。

The results reveal that spectra obtained by different parametric methods are similar. The spectra of normal cells' voltage have only one noticeable lobe due to fluctuation of molten alumina at anodes, while spectra of other abnormal cells have one mainlobe and one sidelobe. In cells with carbon in bath the spectral mainlobe of cell voltage is still due to the fluctuation of molten alumina at anodes and the sidelobe is due to the fluctuation of carbon in bath; in cells with metal pad wave, the spectral mainlobe is due to metal pad waving and the sidelobe is still due to the fluctuation of molten alumina at anodes. Compared with wavelet packet analysis, spectral analysis is simpler and takes less time in calculation, which is a big merit in the large-scale application of online diagnosis systems of working conditions in aluminum reduction cells.

研究结果表明:不同的参数估计法得到趋于一致的频谱分析结果,正常槽只有1个尖锐谱峰,对应于阳极下熔融氧化铝涌动的特征峰,其他故障槽都有2个特征谱峰,即1个主峰和1个次峰,碳渣槽的主峰仍然对应着阳极下熔融氧化铝涌动特征峰,次峰对应悬浮碳渣的涌动特征峰;铝液波动槽主峰对应铝液波动特征峰,次峰对应着熔融氧化铝涌动的特征峰;频谱分析相对于小波包分析具有算法简单、耗时少、物理意义明确等特点,在槽况在线诊断系统的大规模推广中具有优势。

In flotation pulp, local cell was present in sulfide particles-water system, sulfide particles-modifer-water system, sulfide particles-collector-water system and grinding medium-water system; Galvanic coupling did in mineral-mineral interaction and mineral-grinding medium interaction, the material of higher potential acted as a cathode , and the lower as an anode.

在磨矿—浮选矿浆中产生的局部电池包括硫化矿物颗粒在水体系、调整剂体系、捕收剂体系和磨矿介质在水体系中的阳极氧化以及氧在同一固体表面上的阴极还原;在磨矿—浮选矿浆中的迦伐尼电偶则存在于硫化矿物—硫化矿物、硫化矿物—磨矿介质之间,其中静电位低的物质发生阳极氧化,氧在具有高静电位的阴极钝化物质上还原。

The polarization curve is not sufficient for a reliable and unique validation of a PEMFC model since different parameters can lead to an identical polarization curve. A three-step validation approach is proposed for a complete and unique validation. These three steps are:(1) validated by the global polarization curve,(2) validated by the local current density distribution curve, and (3) validated by the cathode over-potential and anode over-potential versus current density curve. The results from the comparison of four flow-fields show that the PEMFC performance of the flow-fields decreases in order by interdigitated, metal foam, pin-type and parallel.

通过PEMFC参数敏感性研究发现,PEMFC性能受多种参数的影响,这些参数可分为非敏感性参数、敏感性参数和高敏感性参数;与阳极侧参数相比,PEMFC性能对阴极侧的参数更敏感;不同参数值的组合可以得到几乎完全相同的极化曲线,因此电池的极化曲线不足以用于验证数学模型的唯一性与可靠性;为验证PEMFC数学模型的唯一性与可靠性,提出了模型验证的三步法:极化曲线验证、局部电流密度验证和阳极总过电位与阴极总过电位验证。

In respect that various requirements of load and temperature on different parts of the baker, firebrick lining was chose reasonably, and the dosage of light heat preservation brick is in enlargement. As a result of that, the weight of the furnace was decreased, and increased its performance of heat preservation and cumulation was increased consumedly. With the use of ""W"" type fire tunnel and straight-through dilatation joint, and two enlargement of the perpends on the wall appropriately, all the problems of heat preservation in the anode baker, uniform temperature in the tunnel, and its life span were solved effectively. In the research of anode blocks in and out of the furnace, and of tidying it up, the multi-function crane clamps was alented and the assembling unit was reconstructed, which made it easy to automatic ally assemble the carbon blocks of various specifications with only one set of assembling unit.In the aspects of automation, a new type pulse combustor and solid thermocouple, as a result of that, not only the control accuracy of the fire tunnel's temperature was increased, but also the system function was improned to be more dependable, safe and practicable.

在焙烧炉炉体研究方面,针对焙烧炉不同部位的负荷及温度要求的不同,合理选用耐火材料,加大轻质保温砖的用量,既减轻炉体的重量,又大大提高炉体的保温蓄热性能;火道墙采用&W&型火道结构,直通性膨胀缝,并适当加大火道墙竖缝,有效地解决了阳极焙烧炉的保温、火道温度均一及火道墙的使用寿命等问题;在阳极炭块装出炉及清理等研究方面,通过对编解机组及多功能天车夹具进行改造,实现一套机组对多规格炭块的自动编组、解组及装出炉问题;焙烧炉自动化控制研发中,采用先进的分散式控制系统,研制开发新型脉冲燃烧器及实体型热电偶,不仅提高了火道温度的控制精度,而且提高了系统的可靠性、安全性、实用性。

After the research of anodic oxidation slag, we got the composition of the suspension electrolyte of zinc sulphate solution. 2 The results of electrode kinetic of anodic oxidation showed that the electron transfer during the process of electrochemical oxidation was 1, and the electrochemical mechanism was: ZnS=Zn~(2+)+S~-+e Zn~(2+)+2S~-=ZnS + S~0 3 The flow sheet which can produce zinc according to suspension electrolysis principle in industry was put forward. 4 Elemental sulfur in oxidizing slag was recovered by distillation.

本文的创新点是: 1提出了以硫酸锌溶液为基础的悬浮电解液体系;通过对阳极氧化渣进行系统的分析研究,得出了硫化锌矿物的悬浮电解的电解液组成; 2通过阳极氧化电极过程动力学分析得到,电化学氧化过程中电子转移数为1,电化学机理为: ZnS=Zn~(2+)+S~-+e Zn~(2+)+2S~-=ZnS+S~0 3提出了工业上利用悬浮电解原理生产金属锌的工艺流程; 4对氧化渣中的元素硫采用蒸馏法原理进行回收。

This thesis has chosen the H_2SO_4 anode oxidation. From degreasing, alkaline cleaning, neutralization, the effect of surface before hand treatment on the quality of surface anodizing treatment is discussed. From electrolyte concentration, electrolyte temperature, voltage, timing, additive, the effect of anodizing oxidation on the quality of surface treatment are discussed, From hole sealing liquid composition pH, value, timing, the effect of hole sealing on the quality of surface oxidation treatment are examined.

对氧化的各个工序进行了较详细的分析,通过脱脂、碱蚀、中和等表面预处理进行了详细的研究讨论,确定了三个预处理工序的最佳工艺控制参数;从阳极氧化机理着手,对阳极氧化电解液浓度,氧化电解液温度,氧化时间、电流密度,氧化电压,添加剂等对氧化质量的影响因素进行了分析;对化学氧化工艺进行了传统的铬酸盐-磷酸盐氧化法正交实验研究,讨论了各个氧化液成分对氧化膜性能的影响。

Because of the disadvantages in the electrolysis of rare earth metals, a new kind of electrode material called non-carbon anode is studied, and the corrosion mechanism is reseached.

针对稀土金属Nd的氟化物体系熔盐电解中石墨阳极所存在的一系列不足,研制了一种新型的电极材料,称其为非碳阳极;并对其在电解过程中的腐蚀机理进行了较详细的探讨,提出了还原反应、氧化反应、电解质渗透、电极组分溶解、析氧膨胀等几种可能的腐蚀原因。

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But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。