electrode density 中文意思是什麼

electrode density 解釋
電極密度
  • electrode : n. 1. 電極。2. 電焊條。adj. -less 無電極的。
  • density : n. 1. 稠密;濃厚。2. 【物理學】濃度;密度;比重。3. 愚鈍,昏庸。
  1. 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。
  2. The optimal cp potential shifted to negative direction in seamud containing active srb, - 1030 mv ( vs. saturated cu / cuso4 electrode, cse ) or lower potential was needed. accordingly, the cp current density was about 11 ma / m2

    在srb存在下,最佳陰極保護電位移向更負的值, - 1030mv (相對銅/硫酸銅電極, cse )甚至更低的電位是需要的。在- 1030mvcse保護電位下,保護電流密度約為11ma / m2 。
  3. The integral method is adopted caculate and analyze to amf three - dimension distruction which is the structure of coil type four - pole and the structure of coil type double - pole and study the size of two kind of electrode structure axial magnetic flux density distribution and its fielduniformity. the finite - element method is used simulate that eddy current has effect on amf when contact tray of douple - pole amf structure is slotted or no

    本文採用積分方法對本文設計的線圈式兩極縱向磁場觸頭結構和線圈式四級縱向磁場觸頭結構的縱向磁場三維分佈進行了計算分析。研究了電弧燃燒期間兩種觸頭結構縱向磁場強度的大小、均勻性,利用有限元法模擬線圈式兩極縱向磁場觸頭結構的觸頭盤開槽和不開槽時渦流對縱向磁場的影響。
  4. Methods of sampling and test for carbonaceous materials used in aluminium manufacture - electrode pitch - determination of apparent density buoyancy method

    制鋁工業用炭素材料取樣與試驗方法.第1部分:電極硬柏油脂.第7節:表觀密度測定
  5. The main work can be summed up as follows : firstly, we studied the thermal - field properties of vcsels, and analyzed the influences of current spreading, material parameters and operating conditions on the temperature distributions. secondly, we began with the electrode voltage and calculated the equipotential s distributions, compared the distributions of voltages and current densities in different depths of vcsels, and then studied the influences of the oxide - confining region with different position or thickness, and the different sizes of the gain - guided aperture and emitting window on the distributions of the injected current density, carrier concentration and temperature in the active region. thirdly, we realized the coupling of electricity, optical and thermal - fields, worked out the threshold voltage, calculated the distributions of the injected current density, carrier concentration and temperature under different offset voltages, and analyzed the impacts of temperature profile and carrier density on the refractive index, fermi levels and optical - field

    具體工作可以概括如下:首先,研究了vcsel的熱場特性,分析了電流擴展,材料參數和工作條件對于溫度分佈的影響;其次,從電極電壓入手,計算出激光器中的等勢線分佈,並對不同深度處的電壓和電流分佈進行比較,研究了高阻區的不同位置和不同厚度、限制層和出射窗口半徑的大小對電流密度、載流子濃度和溫度分佈的影響;再次,實現了電、光、熱耦合,求出了閾值電壓,計算了不同偏置電壓下的電流密度分佈、載流子濃度分佈和熱場分佈,分析了溫度和載流子濃度變化對折射率、費米能級和光場的影響;最後,給出了考慮n - dbr和雙氧化限制層時激光器中的等勢線分佈,分析了n - dbr和雙氧化限制層對vcsel電流密度、載流子濃度、溫度和光場分佈的影響。
  6. Raised the idea of constructing hybrid capacitor with a battery based positive electrode and a capacitor based negative electrode, experiment proved that a hybrid supercapacitor with a manganese dioxide based positive electrode and an activated carbon based negative electrode showed very good performance, double electrode specific capacitance could be enhanced to 95. 7f / g, that is 2 ~ 3 times that of the carbon based supercapacitors. furthermore, the maximal voltage of a single cell could be expanded to 1. 5v, as a result, the energy density could be ten times higher than that of a carbon based supercapacitors

    本論文中我們提出了將電池哈爾濱工程大學碩士學位論文的正極與電容器的負極結合成混合超級電容器的構想,並成功實現了二氧化錳正極和活性炭負極的組合,構成的錳碳混合超級電容器雙電極比容量可達到95 . 7f / g ,比活性炭超級電容器提高了2一3倍,單體工作電壓可以高達1 . 5v ,從而使能量密度提高到碳基超級電容器的十倍。
  7. 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。
  8. All vanadium redox flow battery is a new - style and environmentally friendly energy storage battery that has many characteristics such as instant recharge by replacing the spent electrolytes, discharged at large current density, really fully discharged ( 100 % ), increasing storage capacity easily, a theoretically unlimited life, sim - ple operation and maintenance. therefore, it is undergoing a exciting development and commercialization. however, there are still some questions to be solved during its commercialization, such as how to prepare highpurity vanadium electrolyte, to enhance its energy density and efficiency, to improve its charge / discharge performance. so it is very important for improving the perfoemance of vanadium redox flow battery and its commercialization to select adaptive electrode materials, to investigate the mechanism of the electrode reaction and to select some additives

    如何制備高純度的釩液流電解質、進一步提高釩電池的能量密度和效率,提高其充放電性能,是釩電池實用化過程中需要解決的問題。因此,選擇合適的電極材料,進一步探討釩離子的電極反應機理,研究釩電池在充放電過程的變化,適當選擇並探討添加劑對釩電池電行為和性能的影響,對進一步改善和提高釩電池的電性能以及釩電池的實用化具有重要的理論意義和實用價值。
  9. Methods of sampling and test for carbonaceous materials used in aluminium manufacture - electrode coke - determination of tapped bulk density of green and calcined coke

    制鋁工業用炭素材料取樣與試驗方法.第2部分:電極用焦炭.第13節:未焙燒焦炭和焙燒焦炭散裝密度測定
  10. The high density resisitivity method through electrode power supply, surveys electric current and voltage, gathers apparent resistivity data

    摘要高密度電法通過電極供電、測量電流和電壓,採集視電阻率數據。
  11. Current density doubles when the area of effective contact between tissue and electrode is halved, provided that hf current remains contant

    如果高頻電流強度保持不變,那麼人體組織和電極之間的有效接觸面積減半將會使電流密度增大一倍,這將產生四倍的熱量。
  12. The piezoelectric quartz crystal impedance analysis is a new method to study the quartz crystal resonance. it has been well established as a powerful tool capable of responding in situ to an electrode mass change down to the nanogram level and the change of the solution viscosity and density, and it is also expected to find wider applications in chemistry, life science, surface science, food science, environment monitoring and so on

    壓電石英晶體阻抗分析法是研究石英晶體諧振的新技術,可獲取多維壓電信息,從而現場動態監測電極表面低至納克級的質量及溶液粘密度等響應,可廣泛應用於化學、生命科學、表面科學、食品科學、環境檢測等領域。
  13. According to basic theories for distributing regular of electric field about surface single spot current source and high density resistivity prospecting method in this paper. put forward an installation which use one current electrode or dipole current electrodes and the others prospecting at the same time to realize high density resistivity method by office date processing, such as wenner pole - dipole a, wenner pole - dipole b, wenner alpha, wenner beta, wenner gamma and pole - pole array

    摘要運用地面點電流源電場的分佈規律和高密度電阻率法的基本思想,提出了分別利用單極供電、偶極子供電,其餘電極同時測量,通過室內數據整理實現高密度電阻率法的溫納對稱四機、溫納偶極、溫納微分、溫納三極a 、溫極三極b和二極等裝置。
  14. Methods of sampling and test for carbonaceous materials used in aluminium manufacture - electrode coke - determination of the density in xylene of calcined cokes

    制鋁工業用炭素材料取樣與試驗方法.第2部分:電極用焦炭.第6節:焙燒焦炭二甲苯密度測定
  15. This results in a fourfold increase of heat ( correspondingly, heat drops by 75 % if current density is reduced by half, e. g. by doubling the effective electrode contact area

    相應地,如果將有效的電極接觸面積加大一倍,電流密度將減少一半,熱量則減少75 % 。
  16. In ammonium sulfate solution, the ac electrode could also perform better capacitance, which potential range get to 1. 5v. that made the energy density and power density of the capacitor inhanced greatly. 3

    活性炭電極在( nh _ 4 ) _ 2so _ 4中性電解液,也能夠表現出較好的電容性質,工作電位范圍可達1 . 5v ,這樣可以大大提高電容器的能量密度和功率密度。
  17. This article solves some theoretical problems of electrostatic suspension based on optoelectronic feedback control. the mechanism of electrostatic induction of conductive suspended objects ( cso ) and electrostatic polarization of insulting suspended objects ( iso ) was theoretical discussed. the equations of charge density on the surface of suspended object caused by electrostatic field were developed. we further provided the equations describing the quantitative relationship of electrostatic forces verses the electrode voltages, the electrode area, the suspending gap, and the electric characteristic of suspended object. these equations show that the inducted surface charge density of cso is greater than the polarized surface charge density of iso, as a result, the electrostatic force acting on cso is larger than that acting on iso, as already proved by the experimental results of measured electrostatic forces. this work provided the theoretical equations and the mathematical models for effectively realizing the optoelectronic feedback control of electrostatic suspension

    本文主要討論光電反饋式靜電懸浮的理論問題.研究在靜電場作用下導電懸浮體的靜電感應機制和絕緣懸浮體的靜電極化機理,推導出懸浮體表面的感應電荷或極化電荷的計算公式,以及作用於懸浮體上的靜電懸浮力的計算公式,在理論上揭示了靜電力與電極電壓、電極面積、懸浮間距及懸浮體電學特性等因素之間的關系.結果表明,導電懸浮體表面的感應電荷量比絕緣懸浮體表面的極化電荷量多,因此前者所受的靜電懸浮力比後者大,但兩者均可實現靜電懸浮,這些結論與實驗結果完全符合.本文工作為實現靜電懸浮的光電反饋控制提供了理論依據
  18. Found the fittest flock length, flocking time, electrode voltage on the flock - packing by comparing the flock - packing density

    摘要為探討用滌綸絨毛進行靜電植絨的可行性,通過比較植絨密度的實驗結果,得出最適宜的絨毛長度、植絨時間、植絨電壓。
  19. 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。
  20. The results show that the pyrrole - derivative was successfully electropolymerized on the surface of the electrode. the data estimated by edx results revealed the density of the pyrrole - derivative on the electrode was about several nmol per square milimeter. the 3 - pyrrole - dna also was successfully deposited on the electrode surface by electropolymerization because the edx characterization of polymer shows that the phosphor element was appeared

    結果表明, 3 -吡咯甲基-四聚乙二醇單醚可成功地聚合到電極表面,進一步的計算表明,電極表面修飾的3 -吡咯甲基-四聚乙二醇單醚鏈的密度為每平方毫米幾個nmol的數量級,且因聚合方法的不同密度有所差異。
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