陰極過程 的英文怎麼說
中文拼音 [yīnjíguòchéng]
陰極過程
英文
cathodic process- 陰 : Ⅰ名詞1 (中國古代哲學認為宇宙中通貫物質和人事的兩大對立面之一) (in chinese philosophy medicine ...
- 極 : i 名詞1 (頂點; 盡頭) the utmost point; extreme 2 (地球的南北兩端; 磁體的兩端; 電源或電器上電流...
- 過 : 過Ⅰ動詞[口語] (超越) go beyond the limit; undue; excessiveⅡ名詞(姓氏) a surname
- 程 : 名詞1 (規章; 法式) rule; regulation 2 (進度; 程序) order; procedure 3 (路途; 一段路) journe...
- 過程 : process; procedure; transversion; plication; course
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However, the manufacture process of twt is so complicated that many kinds of subject, such as electron optics, magnetics, cathode electronics, microwave electronics, electronmagnetic fields theory, material science, mechanics and calorifics are involved in
行波管的研製涉及到電子光學、磁學、陰極電子學、微波電子學、電磁場理論、材料學、機械與熱分析諸多學科,工藝過程十分復雜。This article introduces briefly the process of design and characteristic of structure of db930 tube and discusses the main problems of technology and technique which was met during the manufacture and the measures having been adopted are emphatically. it discusses the solve measures in following six aspects : the filament current is too large, carbon deposits during the carbonizing of cathode, the capacitance between the first grid and the second grid is too large, transpiring happens inside the tube, the insulation resistance between the electrodes is too lower when the filament is on and the ability of bearing high voltage is too lower
本文簡略地介紹了db930的設計過程及其結構特點,重點論述了在試制過程中遇到的主要工藝技術問題及解決問題的措施,圍繞解決燈絲電流大、陰極碳化時積碳、一柵和二柵之間的電容大、管內蒸散、熱態時極間絕緣低、耐高壓的能力差等六個方面的問題進行了論述。( 3 ) by exploring the filming processes of the pedt negative pole, this paper, creatively using the vacuum single step method, has found a comparatively suitable processing condition
( 3 )通過對pedt陰極被膜工藝過程的研究,找到了較適合的單體m和氧化劑c配比,清洗液的配方和清洗時間,烘乾溫度和時間,被膜和補形成次數等工藝參數。The result shows that with the addition of rare earth elements, ultrasonic irradiation and magnetic field, the chemical component, surface configuration, microstructure and properties of electroless co - ni - b and co - fe - b alloy changes remarkably. such kind of change can be described as the followings. firstly the depositing speed of electroless alloy bath is raised while the polarizability and cathodic overpotential are reduced ; secondly the surface quality of the alloy coating and adhesion of the coating and matrix are improved ; thirdly in the coatings the content of the elements in the transient group increases, but the content of cobalt decreased ; fourthly the amorphous structure is transformed to microcrystal structure and polycrystal structure ; fifthly the microhardness and wear resistance of the coating are enhanced ; sixthly coercitive force is reduced, and magnetoconductivity of the coating is increased ; lastly the magnetic intensity of the coating increases with the addition of energy and light rare earth elements such as ce, la and decreases with the addition of heavy rare earth elements such as y. on the other side, when the alloy coatings passes through the heat treatment under the temperature of 250 or 500, their properties will change
結果顯示化學沉積co - ni - b 、 co - fe - b工藝在稀土元素( ce 、 la 、 y 、 dy ) 、能量(超聲波、磁場)介入后,沉積過程、合金成分、鍍層形貌結構和性能都有顯著變化,表現在:鍍液的陰極極化過電位和極化度降低,沉積速度提高;鍍層的結合力、表面質量改善;鍍層中過渡族元素的含量增加,輕元素硼的含量降低,同時證實了稀土元素與過渡族元素共沉積的可能性;鍍層的顯微結構由非晶態向微晶和多晶態轉變;鍍層的顯微硬度與耐磨性提高,力學性能優化;鍍層的矯頑力降低;磁導率提高;鍍層的磁化強度在能量(超聲波、磁場)和輕稀土元素ce 、 la介入后提高,重稀土元素y介入后降低。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。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。Numerical simulation of mass transfer in the cathode of a proton exchange membrane fuel cell with interdigitated gas distributors
交指型電極的質子交換膜燃料電池陰極內傳質過程的數值模擬This new radial reflex klystron oscillator with virtual cathode is designed and simulated by 2. 5 - d pic code
分析了電子束在徑向反射腔中形成虛陰極的過程和虛陰極對電子束的調製作用。Transport in the diffusion layers and catalyst layers are described by a superposition of knudsen diffusion and stefan - maxwell diffusion, and electrochemical kinetics for anodic methanol oxidation and cathodic oxygen reduction are described by tafel equation
模型以stefan - maxwell擴散和knudsen擴散的疊加描述了氣體混合物在多孔電極中的擴散過程,以tafel方程描述了甲醇在陽極氧化和氧在陰極還原的電化學動力學。In the discharge process, the ions can clean and activate the surfaces of cathodes, which can reduce the work function of the electrodes, and improve the discharge tubes ’ emission capability and stability
在放電過程中,陰極表面有離子的清洗和活化作用,可以使電極逸出功降低,提高放電管的放射能力和穩定性。For the cathodic process it is likely that there exists a coupling between ni2 + discharge and hydrogen evolution. hydrogen evolution on working electrode should have masked the nickel ion reduction peak in lsv curve
對于陰極過程,鎳離子放電和氫氣析出過程存在耦合,氫氣的析出可能掩蓋了線性電位掃描曲線上鎳還原的電流峰。The results of simulations are : i ) energies of the incident ions to the target are determined mainly by the voltage across the cathode sheath, with a majority of ions " energy vary around the sheath voltage ; ions nearly normally bombard the target ; ions mainly locate above the sputtering holes because of the influence of the magnetic field, and the incident ions mainly come from the region ; the ions undergo several collisions during transportation, but that do n ' t matter much
主要模擬結果有: ? )入射離子到達靶面時的能量主要受到了射頻輝光放電中陰極殼層西北工業大學碩士學位論文李陽平電壓的影響,大部分離子的入射能量在陰極殼層電壓值附近,離子濺射時接近於垂直入射;射頻輝光放電受到陰極磁場的影響,等離子體中的離子主要集中在靶面濺射坑的上方,且入射離子主要來自這個區域;入射離子在輸運過程中和背景氣體分子有少量的碰撞,但影響不太大。Meanwhile, the kinetics law of nickel electrodeposition was investigated by means of steady - state polarization curves
同時採用穩態技術測定穩態極化曲線,對氨絡合物體系陰極電積鎳的動力學過程進行了研究。Oxygen diffusion transport and electrochemical reaction in the oxygen cathode of alkaline fuel cell ( afc ) and pemfc have been expressed with the tffa model, including oxygen transferring in gas channel of gas diffusion layer and reaction layer, oxygen dissolution and diffusion in thin - film of reaction layer, oxygen reaction and diffusion in flooded - agglomerate of reaction layer and the conduction of electron and ion. numeric algorithm of the model equations is also obtained
本文將tffa模型應用於堿性燃料電池( afc )和質子交換膜燃料電池( pemfc )陰極,推導出陰極各種傳遞和反應過程的描述方程,包括氧氣在氣體擴散層和反應層氣體通道中的擴散,氧氣在反應層薄膜中的溶解和擴散,氧在反應層浸漬聚集體中的反應和擴散以及電子和離子的傳導,並給出方程的數值解法。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。Mol l, artemisinin can be reduced via the hemin - catalysis and its original cathodic peak at - 1. 08v completely disappeared. the cathodic overpotential of artemisinin is decreased ca. 600mv. this process is verified by the fact that complex edta - fe can also promote the artemisinin reduction with decreasing the cathodic overpotential of artemisinin for 590mv. these results show that the reduction of artemisinin at the glassy carbon electrode is a catalytic process with the aids of hemin. hemin can greatly decrease the cathodic activation energy of the reduction of artemisinin and promote the decomposition of artemisinin
Mol l氯化血紅素存在下,青蒿素仍可被催化還原,陰極過電位降低了600mv 。配合物edta - fe具有類似氯化血紅素的催化性質,它降低了qhs陰極過電位590mv 。在這個體系中,青蒿素在碳電極上的還原是一個藉助于氯化血紅素催化的還原過程,氯化血紅素的存在降低了青蒿素還原活化能,促進了青蒿素的分解。The influence factors to electrochemical deposition and gradient distribution of pmgcf, such as the predrying extent of the swelling cathode film, the excessive power voltage of the cathode, the ph value of electrochemical reduction medium solutionn, the microstrucure of polymer matrix, were majorly invested in this thesis
本文著重討論了了溶脹陰極膜的預乾燥程度、陰極過電位、電解質溶液的ph值、聚合物基體的結構等因素對金屬銅在溶脹陰極膜中的沉積分佈以及結晶的形態的影響。This was achieved by the formation of a conversion film on the alumium alloy surface and by the inhibition of cathodic process
這種緩蝕作用主要是通過在鋁合金表面形成一種化學轉化膜和抑制陰極過程實現的。A study on corrosion of carbon as cathode with gas chromatography
氣相色譜法研究碳在氧陰極過程中的腐蝕Since the generation of mcfc, large numbers of efforts have been incessantly made to investigate on the various technical problems related to mcfc. at present, the mcfc industry has a rapid development and great success ; neveftheless, there are still some problems to be 5olved, especia11y those about complicated cathode system
自開發mcfc技術以來,人們經過不懈的努力對其進行研究和探討,並取得顯著進展,但一些關鍵問題仍亟需研究和解決,尤其是對于復雜環境中的陰極過程。分享友人