cathode density 中文意思是什麼

cathode density 解釋
陰極密度
  • cathode : n. 【電學】陰極,負極。
  • density : n. 1. 稠密;濃厚。2. 【物理學】濃度;密度;比重。3. 愚鈍,昏庸。
  1. The scaling relations of conduction time and opening time with the plasma density, which are computed by a series of simulation results, show that, influence of plasma density on conduction time is greater than opening time. influence of cathode em itted electrons on conduction process, which is found to be more important when initial plasma density is low, is dependent of the initial plasma density. the penetration of a magnetic field into cylindrical middle - density ( 1013 / cm3 ) c + + and h + plasma with uniform and parabolic density profile, are examined with aid of pic simulation

    模擬得到的低密度( 10 ~ ( 11 ) cm ~ 3 10 ~ ( 13 ) cm ~ 3 )條件下導通和斷路時間與等離子體密度的定標關系曲線顯示:密度對于導通時間的影響遠大於對于斷路時間的影響;陰極電子對于peos導通過程的影響程度與初始等離子體密度有關,初始密度越大,陰極電子的影響就越小。
  2. Oxygen diffusion transport and electrochemical reaction in the oxygen cathode of direct methanol fuel cell ( dmfc ) have been expressed with the tffa model. model calculation has been carried out to investigate the effects of structural parameters of the dmfc cathode on the electrode performance, which is respectively represented by the curve of cathode overpotential versus current density. much attention has been paid to parameters including the porosity of the reaction layer, the thickness of the thin - film on the flooded - agglomerate, the radius of the flooded - agglomerate, the volume fraction of the flooded - agglomerates in the reaction layer

    本文首先運用tffa模型描述直接甲醇燃料電池( dmfc )陰極氧氣的傳遞和電化學反應過程,研究了過電位-電流密度曲線受陰極結構參數變化的影響程度,其中著重考慮了以下幾個參數:催化層的孔隙率,浸漬聚集體薄膜的厚度,浸漬聚集體的半徑,浸漬聚集體在催化層中的體積分數。
  3. The results were shown as follows : ( 1 ) the electrolyte components for electroplating pb - sn coatings in fluoborate system were studied. the effects of concentrations of main salt, dissociative acid, inhibitor, antioxidation and surfactant on the cathode polarization curves of electroplating pb, sn and pb - sn alloys and contents of alloying element were investigated systematically. the scale of current density was confirmed using hull cell

    ( 1 )研究了氟硼酸體系電鍍pb - sn合金鍍層的電解液組成,詳細討論了主鹽濃度、游離酸濃度以及阻化劑、抗氧化劑、表面活性劑等添加劑對氟硼酸體系電沉積pb 、 sn及pb - sn合金陰極極化曲線的影響和對pb - sn合金鍍層中合金含量的影響。
  4. Alcl3 + lialh4 system conforms to the relation of current efficiency and cur rent density of complex electrolysis lead to uniform distribution at cathode plate

    Alcl _ 3 + lialh _ 4體系符合絡合物電解中電流效率與電流密度的關系,使鋁鍍層在陰極上的分佈趨于均勻。
  5. Methods of sampling and test for carbonaceous materials used in aluminium manufacture - electrodes - determination of density of cathode blocks and prebaked anodes

    制鋁工業用炭素材料抽樣和試驗方法.第3部分:電極.第2節:陰極塊和預焙陽極密度測定
  6. Static - electric field of spindt cathode was analyzed and then field emission current was simulated. the method could direct the fabrication of spindt cathode. how the aspect ration and site density of cnts effect the field enhancement factor were also analyzed

    對碳納米管的頂端電場進行了計算,分析了其長徑比和生長密度對電場增強因子的影響,進而可以對場發射實驗進行指導。
  7. Simulation results show that cathode over - potential under low current density is considerably increased because of methanol crossover, but its effect becomes much lower under high current density

    模型顯示在低放電電流密度下,甲醇穿透顯著地增加了電池陰極過電位,降低了電池電壓;但在高電流密度下,甲醇穿透對電池性能的影響不顯著。
  8. The tffa model calculation has been carried out to investigate the effects of structural parameters of the afc cathode and pemfc cathode on the electrode performance, which is respectively represented by the curve of cathode overpotential versus current density and the curve of cathode potential versus current density

    本文運用tffa模型分別考察了afc陰極過電位?電流密度的曲線和pemfc陰極伏安曲線受陰極結構參數變化的影響程度。
  9. In contrast with conventional thermo - ionic cathode, field emitter array ( fea ) cathode has many special advantages, such as room - temperature operation without a cathode heater, high current density, low power dissipation, excellent on / off isolation characteristics and instant turn - on characteristics

    與傳統的熱陰極相比,場發射陣列陰極具有許多獨特的優點,如無需加熱,可以在室溫下工作;電流密度比熱陰極高幾個數量級,並可工作在低電壓調制下;功耗低;極好的開關特性;可瞬時啟動等。
  10. Methods of sampling and test for carbonaceous materials used in aluminium manufacture - electrodes - determination of the bulk density apparent density of cathode blocks and prebaked anodes using a dimensions method - section 3. 3 determination of the bulk density apparent density of cathode blocks and prebaked anodes using a dimensions method

    制鋁工業用碳素材料的取樣與試驗方法.電極.用尺寸法測定陰極碳塊和預焙陽極的體密度
  11. Standard test method for apparent density by physical measurements of manufactured anode and cathode carbon used by the aluminum industry

    通過鋁工業生產的陽極和陰極碳物理測量確定表觀密度的標準試驗方法
  12. Abstract : in the paper a kind of new idea based on electric field theory is advanced, which is used in research of forming law of electrochmeical perforation with fixed cathode. according to it, the changing law of electric intensity, current density, velocity of perforation in ecm on the machined surface are presented

    文摘:根據電場理論,提出了一種研究固定陰極電化學射孔成形規律的新的處理方法,分析了該加工方式下陰極表面電荷密度及加工區的電場強度、電流密度、加工速度等在加工過程中的變化規律,為這種簡易加工方式的合理應用提供了嚴密的理論依據。
  13. Technological conditions of the cathode material lini1 - xcoxo2 using like sol impregnation method at air atmosphere have been investigated systematically. the structure and cycling performance of the sample linio. 7coo. 3o2 obtained at optimal conditions have been further studied too. the results indicates that the sample exhibits good electrochemical properties when cycled at low current density, and the material has little volume changes, showing good stru

    通過對不同充放電電流下材料的xrd圖譜的特徵及循環穩定性的分析,發現空氣中合成的lini _ ( 0 . 7 ) co _ ( 0 . 3 ) o _ 2材料以低電流密度充放電時具有良好的電化學穩定性,當材料以低電流密度在0 . 3 1 - y 1 . 0范圍內進行脫/嵌鋰反應,材料的體積變化較小,結構穩定。
  14. The cathodes both of the prepared tungsten - based barium - tungsten cathode and mixed metal barium - tungsten cathode have, not only high current density, but also a long life, simplified procedure and stable performance, and so on. and we made certain two good additives cr2o3 and ni2o3 that make the cathode performance more excellent

    2 )對不同元素配比的二元和三元混合陰極基底的制備工藝和發射性能開展了實驗研究,在增大發射能力,延長壽命和降低燒結溫度等方面有重要進展,取得了有價值的階段成果。
  15. Combining press mending with granular arrange and magnetic select, the density and the properties can be improved remarkably. bonded ndfeb magnets need the protection of the cathode electrophoretic coating

    如果把粒度配合、二次壓制、二次成型以及磁選結合起來,磁體的密度和磁性能能夠顯著得到提高。
  16. It has discovered for the first time that the precursor b - ni1 - xcox ( oh ) 2, with pluffy and dendritic morphology, high specific surface area and low tap density, is the best starting material to produce lini1 - xcoxo2 materials, but not the presently thought that high density and spherical particle of ni ( oh ) 2 is fitting for the preparation of ni - cathode materials. using our own precursor can greatly reduce the degree of cation mixing ; improve the electrochemical properties of the aimed materials

    發現表面蓬鬆、比表面積高和密度低、呈枝晶狀排列的- ni _ ( 1 - x ) co _ x ( oh ) _ 2前驅體具有較高的化學活性,制得的目標材料可有效抑制陽離子混排產物的生成,而非目前廣泛認為的高密度球形ni ( oh ) _ 2適合作鎳系正極材料的前驅體。
  17. The key part of this battery is the licoo _ 2 film as the cathode film, which has high voltage stage, high energy density, and stable charge / discharge ability

    薄膜鋰電池是具有廣泛應用前景的一種二次電池, licoo _ 2是被研究最多的一種正極材料。
  18. It shows that the charge - discharge performance of the battery, which is fabricated by casting the polymer electrolytes on the surface of the cathode directly then impregnating the composite electrode in liquid electrolytes for seconds, is much better than that of other batteries. the best battery , s charge - discharge current density is as high as 0. 33 ma / cm2, and its specific energy accesses to 110ah / kg. moreover its capacity remains 80 % of initial capacity even after 20 cycles

    這種電池的充放電電流密度可達到0 . 33ma / cm2 ,比容量可達110ah / kg ,且在20次循環后,電池的容量仍能保持初始容量的80 % ,電池的充放電效率達到85 %以上,但是電池的本體電阻和電化學極化電阻比液態鋰離子電池高兩個數量級。
  19. As a new generation cathode material, lithium nickel oxide ( linio2 ) is a promising cathode candidate for its low cost and high energy density, showing an attractive prospect at minitype - portable electric sources and large - scale power supplies. linio2 and its partially substituted compounds have been studied intensively as a cathode material to replace the presently used licoo2

    作為新一代的鋰離子電池正極材料,鎳系正極材料因具有放電容量高、成本低的優點,在便攜式電池、動力電源等領域展現出誘人的應用前景,是目前國際鋰離子電池正極材料的發展趨勢。
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