正電極的 的英文怎麼說
中文拼音 [zhēngdiànjíde]
正電極的
英文
positive terminal-
Taking the silicon diode as an example, through an analysis of the diode ' s current - voltage characters and the avometer circuit, the writer finds out the reasons for the differences in the amount when measuring the positive direct current equivalent resistance with different ohm grades
摘要以硅二極體為例,從二極體的伏安特性及萬用表內部電路的角度,分析了用指針式萬用表的不同歐姆檔位測量二極體的正向直流等效電阻時,其值緣何不同。As a comparison, ba1. 03ce0. 8gd0. 2o3 - was synthesized by sol - gel method. among these samples, nonstoichiometric samples were synthesized for the first time. the research work involved : the crystal phase of the sinters were determined by xrd ; ionic conduction under different experimental atmospheres was measured by gas concentration cells ; performances of hydrogen - air fuel cells with the sinters as electrolytes and porous pt as electrodes were measured
用粉末x射線衍射儀鑒定它們的結晶相;在( 600 1000 )范圍內,以燒結體作為電解質隔膜,多孔性pt黑為正、負電極, pt - rh合金網為集電極,分別組成氫濃差電池、氧濃差電池及氫?空氣燃料電池並測定了它們的性能,研究了不同氣氛下樣品的離子導電特性及影響燃料電池性能的因素。Zhang y, xie q, guo y, et al., a study on adsorption of electrogenerated cystine precipitate onto au electrode using electrochemical quartz crystal impedance system. chinese chem. lett., 1999, 10, 1057
張友玉,謝青季,袁玉等.溶菌酶在裸金電極和巰基乙酸或正十二硫烷基醇修飾金電極上的吸附.應用化學, 2002 , 19 , 4The dopping of clo4 - had a great effect on the sensitivity of the sensor. the glucose oxidase could be immobilized in the polypyrrole membrane when the pyrrole is polymerizing on the electrode
當聚吡咯在電極上氧化聚合時,會形成帶正電荷的聚吡咯骨架,帶負電荷的酶就會通過電荷吸引摻雜到骨架中,從而得到固定。The low solubility of calcium zincate produced from the chemical reaction of zinc oxide and calcium hydroxide in alkaline solution can improve the cycling life the zinc electrode, and the discharge capacity will tend to be stable. furthermore, the effects of la2o3 additives on the electrochemical performances of zinc electrodes were investigated. the results shows that the addition of la2o3, in zinc electrode can improve the area of reduction peak and the hydrogen evolution potential which means the cathodic hydrogen evolution reaction can be hindered
氧化鋅與氫氧化鈣在堿性溶液中化學反應生成的難溶於堿的鋅酸鈣可以使鋅電極的循環壽命得到提高,放電容量也趨于平穩,此外還考察了氧化鑭對鋅酸鈣電極電化學性能的影響,結果表明:添加適量氧化鑭能明顯改善鋅電極的電化學性能,使鋅電極的還原峰電位正移,電極反應可逆性得到改善,同時也可抑制鋅電極析氫反應的發生,提高了鋅電極的陽極電流,對陽極反應有一定的活化作用;同時還可以改善鋅電極的放電特性,增加電極的放電容量。In the first part of this paper, mn ( iii ) / mn ( ii ) couple in h2so4 was firstly applied as the positive couple to this system, i. e. redox flow cell. its chemical, electrochemical properties, redox kinetics and related parameters were characterized and discussed by rotating disc electrode ( rde ), cyclic voltammetry ( cv ), a. c. impedance ( a. c. imp ), chronoamperometry, tafel curve, and galvanostatic charge / discharge techniques. conclusions have been drawn as follows : 1. the electrochemical kinetics of mn ( iii ) / mn ( ii ) redox couple in 6. 3m h2so4 solution were studied by means of rotating disc electrode ( rde ) technique on platinum electrode
本文第一部分首次成功地將酸性介質中的mn ( iii ) / mn ( ii )電對應用於氧化還原液流電池這一新型儲能裝置的正極活性材料,通過旋轉圓盤( rde ) 、循環伏安( cv ) 、交流阻抗( a . c . imp ) 、恆電位階躍、 tafel實驗以及mn ( iii ) / mn ( ii )單電極的恆流充放電實驗,我們得出以下結論: 1 .在旋轉圓盤電極上,不同轉速范圍,不同的極化過電位, mn ( ) / mn ( )體系氧化還原電極過程的控制步驟不同,電荷傳遞、擴散傳質可分別或聯合成為控制步驟。Abstract : the author puts forward a constant - current control system of diode rectifier with saturable reactor in electrolytic aluminum. the working principle of saturable reactor is depicted. also analyzed are the system configuration and features of system correct circuit
文摘:介紹了應用於電解鋁的加飽和電抗器的二極體整流器的恆流控制系統,簡述了飽和電抗器的工作原理,分述了系統構成和系統校正電路的特點。Combined with development of the products, the research emphasis in this paper is focus on the studies of the high - rate discharging performance at different temperature. 1. in the research of the discharge performance with high rate, the results of different effects including thickness of positive electrode, materials of hydrogen storage alloy, concentration of the electrolyte and separators
論文在實現研究目標的過程中,結合產品的研製,重點對電池的高倍率放電性能和溫度性能進行了研究:一、在提高電池大電流放電性能的研究中,比較了不同正極板厚度、不同貯氫合金材料、不同濃度電解液及不同材料隔膜等對電池大電流放電平臺的影響,並從電極反應動力學和多孔電極的角度分析了極板厚度對電池高倍率放電的影響。In addition, it is found that dc electric field weakens the effect of release agent and strengthens the binding strength between epoxy resins and anode in the condition of the existence of release agent. but this effect of electric field is not discovered between epoxy resins and cathode
另外,本文通過實驗研究還證實:在有脫模劑存在的情況下,固化過程中直流電場的存在會弱化脫模劑的作用進而強化環氧樹脂固化物與金屬正電極間的粘接強度,但直流電場對環氧樹脂固化物與金屬負電極間的粘接強度沒有明顯影響。The charge and discharge performances of different composites were studied by the charge and discharge ; the structures of composites were characterized by sem ; the electrochemical properties of sulfur positive materials were characterized by cyclic voltammetry and eis. we studied the charge process, discharge process, charge - discharge efficiency, self heat, and self - discharge of lithium - sulfur system on system shuttle constant, conduct the mechanism of these processes and simply analyse them
以充放電技術研究了不同類別復合正極的充放電性能;以掃描電鏡技術觀測了復合正極的表面形貌;以循環伏安技術和交流阻抗技術研究了復合正極電極的電化學性能;並初步探討了鋰-硫電池體系中充電過程、放電過程、充放電效率、自熱和自放電等對體系飛梭常數的影響,推導了這些過程的機理並簡要的進行了分析。And the mechanism was discussed. the form of the gold electrode was designed so as the reference capacitor cr can correct the non - linearity of the main variable capacitor cp. the characterization on absorbability and erosive - proof to ceramic of gold conductive sol was studied
對金電極的形狀進行了設計,設置參照電容cr ,可較好地修正測量電容cp的非線性;研究了金導電漿料的配方、組成,通過調節漿料的成分,加入部分添加劑,提高了燒結后的電極對瓷體的附著力和耐腐蝕性。Abstract : it has been discovered that the coke formed in ch4 coupling under plasma can be eliminated via pure h2 discharge in the system. eliminating coke under plasma with positive or negative high voltage in dc electric field has been compared with that in ac field. the elimination of coke takes place only on the negative of the two electrodes in dc field, while on both electrodes in ac field. the coke on the reactor walls can be eliminated with either positive or negative high voltage and in either dc or ac field. based on the experimental facts, hypotheses of the reaction mechanism are suggested. quantity of eliminating coke depends on diametrical ratio between reactor and the electrode, input power and electrode materials
文摘:發現了等離子條件下甲烷偶聯反應中形成的積炭可以通過該體系中純氫氣放電而消除.將消除積炭使用直流電場的正高壓和負高壓與使用交流電場作了比較,發現直流電場中無論使用正高壓還是負高壓,只有陰極上的積炭可以被消除,而交流電場中兩極積炭均可被消除,反應器壁上的積炭在以上任何情況下均可被消除.基於實驗事實提出了機理假設.消除積炭的量與輸入功率、反應器對電極的直徑比以及電極材料有關Nano - sacle coo is apt to dissolve in the electrode homogeneously, and better conductive net of coooh come into being, thus contribute a lot to the procedure of the activation. the electrode with nano - scale coo and cnts shows higher discharge voltage and higher discharge capacity. nano - scale additives can improve the specific capacity of the electrode, the volume specific capacity and the mass specific capacity of the electrode with nano - scale coo are 784mah / cm3 and 224mah / g, respectively
結果表明:添加劑為納米coo的電極的活化性能最好,納米coo相對于普通coo能更加均勻的分佈在鎳電極內,也更易溶解、反應生成coooh導電網路,從而加快了鎳電極的活化進程;添迦納米coo和添加cnts的極片具有較高的放電電位和較大的放電容量,納米添加劑能有效提高鎳正極活性物質的放電效率和利用率;納米添加劑可以有效地提高鎳正極片的容量密度,其中添迦納米coo的極片體積容量密度達到784mah cm ~ 3 ,質量容量密度達到224mah g ;添加cnts的極片體積容量密度達到778mah cm ~ 3 ,質量容量密度達到223mah g 。In order to improve the circuit ' s input impedance, which is affected by insulating resistance of electrode leading wire, terminals and printed circuit board, electrode is connected to the meter through insulating wire of high impedance which is directly welded in the printed circuit board with insulating ring. the deviation of electrode is corrected by software and the algorithm is given
使用高阻絕緣線連接電極,並將高阻絕緣線直接焊在加有絕緣環的印刷線路板上,從而消除電極引線、接線端子和印刷線路板漏電對放大電路輸入阻抗的影響;軟體校正電極偏差,並給出校準演算法。The main works are listed as follows : ( 1 ) based on the excitation of bi - directional current pulse technique, a new measuring circuit for weak variation of resistance was proposed for electrical resistance tomography. traditional ac current source is n ' t adopted as the exciting source. through fast bi - directional current switching, the polarization effects are eliminated
該電路主要優點如下:該電路沒有採用傳統的交流電流激勵法作為系統的設計原理,而是通過快速的正負極性電流切換來削弱直流電流激勵時激勵電極的極化效應,使通過直流法來測量氣液兩相流的電阻微弱變化成為可能。In the hall effect, hall electromotive force is not only related to the current density, magnetic field and the distance of the poles, but also to hall coefficient directly
據知,霍耳效應中輸出的霍耳電動勢除了跟輸入的電流強度、磁場強度及輸出電極的間距有關外,還與霍耳系數成正比。First, it is associated with the prepared conditions of spectral pure graphite electrode ; second, compared with the untreated graphite, the surface functional groups of ? oh and ? cooh on the treated one increased dramatically with hot concentrated h2so4 and the impurities on electrode surface decreased significantly with ultrasonic rinse. a sequence reaction mechanism was proposed for the eis of mn ( ) / mn ( ) on different graphite electrodes. the spectral graphite and the treated one can be suitable for the inert electrode of mn ( ) / mn ( ) cathode
分析原因認為:一方面與光譜純石墨電極的制備條件有關;另一方面,與未處理石墨電極相比,處理石墨表面含氧官能團? oh 、 ? cooh明顯增多,而且超聲清洗又使其表面雜質含量減少,並提出了一個反應機理解釋mn ( iii ) / mn ( ii )電對在三種石墨電極上阻抗譜的不同,說明光譜純石墨和處理石墨均可以作為mn ( iii ) / mn ( ii )正極電對的惰性工作電極。The currency s strength is directly proportional to the distance from the finger to the electrode
電流的強弱與手指到電極的距離成正比。They have been widely used in our everyday life due to their advantages on discharge capacity, specific energy and low - temperature performance et al. although such alkaline cells are in widespread commercial use there is a need to improve the cell or develop a new type of cell that exhibits reliable performance and longer service life for normal applications and performs even better than conventional zinc / mno _ 2 cells
長期以來,由於mno _ 2堿性電池具有放電容量較大,比能量較高,低溫性能優良,性能可靠等優點,因此傳統的堿性電池一直採用mno _ 2作為正極活性物質,然而其容量性能的進一步提高受到了mno _ 2電極的限制。We also found that it was the smaller capacitance of the positive electrode that limits the performance of the ac electrode, and the capacitor character reached optimization when the ratio between the mass of positive actived material and that of negative actived material. " 2
但是活性炭電極的正極性能較差是影響電容器性能的重要因素,增大正極活性物質的載量使正負極活性物質質量比約為2 : 1時,電容性能達到最佳。分享友人