查询词典 directly heated cathode

In this thesis, the alloys of Pt and Ni were made and used as the cathode catalyst. By the contrast of the two kinds of catalysts electrode kinetic parameters, we find that the exchange current density of cathode doubled.

通过电极动力学参数的比较，发现氧电化还原在合金催化剂上的交换电流密度比Pt／C催化剂上的提高了2倍，减小了氧电极的活化极化，提高了催化剂的抗烧结能力。

Dependence between cathode current density and distance from certain point to cathode close point can be deduced as

比较了本文所推导的Hull Cell阴极电流分布公式与传统的Hull Cell阴极电流分布公式的可靠性。

According to glow discharge cathode fall theory, a formula of cathode current density was drawn when source electrode discharge.

以空心阴极放电理论为基础，提出了用宏观工艺参数直接计算不等电位空心阴极放电电流放大系数的经验计算公式，并与实测值相符。

When battery was rate-discharged, the cathode potential large drop caused by the aggravation of LiCoO〓 cathode polarization was main reason of battery's discharge capacity reduction and discharge voltage drop.

同时我们也比较系统地研究了MCMB/LiCoO〓电池的容量衰减机理、倍率放电时的限制电极及过充电过放电对电池性能、正负电极性能的影响。

Supply lighting, design,manufacture and installation,we professionally manufacture LED, cold cathode, lamps and stainless steel cold cathode luminescence thoroughly within the word.

上海亚越照明电器有限公司创建于2001年，厂址位于：上海市闵行区北吴路塘湾三新11号，占地面积达1800平方米。

This article introduces some practical problems met in producing high-purity cathode copper , analyzes the reason of cathode copper surface particle formation by particle classification, and puts forward treatment measures and preventive measures to be taken.

介绍了高纯阴极铜生产中易遇到的实际问题，并把电铜表面粒子分成几种类型分析了其粒子形成的原因，提出了处理及应采取的预防措施。

The results show that LSCF and LSM precursors can be transformed to the pure orthorhombic perovskite structure having been calcined at 900℃ and 1200℃ for 5 h, respectively, and LSCF cathode has a smaller particle size and a bigger specific surface area compared with LSM cathode.

采用氨水沉淀法分别制备La0.6Sr0.4Co0.2Fe0.8O(下标 3-δ)与La0.8Sr0.2MnO(下标 3-δ)两种阴极材料，并用X射线衍射、场发射扫描电子显微镜和比表面积对所制备材料的结构、晶粒大小、形貌及比表面积进行表征。

Photo-cathode superconducting accelerator experiment system includes Nd:YAG mode-locked laser, Cs 2Te cathode, 2+1/2 RF gun, L band 3.5MW microwave source, 1.3GHz superconducting cavity, 500W continuous microwave source, coaxial input coupler, 4.2K cryostat, helium liquified system, control system, beam diagnosis system, and vacuum system.

光阴极超导加速器实验系统由四倍频 Nd：YAG锁模激光器，Cs2 Te光阴极，2 +1 / 2微波电子枪，L波段 3 。5 MW脉冲微波源，1 。3 GHz单腔超导铌腔，5 0 0 W连续微波源，超导腔束管耦合器，4 。2 K低温恒温容器，液氦制冷系统，同步控制系统，束流参数诊断，真空系统等构成。

The best combination of anode and cathode flow channel flow was anode flow channel cross-finger, the flow field composed of the cathode flow channel cross-refers was the best combination of flow field.

阳极流道与阴极流道的最佳组合为阳极交指流道、阴极交指流道组成的流场为最佳组合流场。

On the other hand, the external ACMF increased the quantity and directionality of carbon particles, so the quantity and crystallization degree of MWCNTs in cathode depositions. When ACMF and catalyst were adopted at the same time, new cylinder-shaped structures were found in the cathode depositions.

对液体中电弧施加纵向恒定磁场，可以使向阴极表面运动的碳粒子数量增多、定向性增强，从而大大提高阴极沉积物中多壁碳纳米管的数量和晶化程度。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。