電子擴散系數 的英文怎麼說
中文拼音 [diànzikuòsǎnxìshǔ]
電子擴散系數
英文
electron diffusion coefficient- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 子 : 子Ⅰ名詞1 (兒子) son 2 (人的通稱) person 3 (古代特指有學問的男人) ancient title of respect f...
- 擴 : 動詞(擴大) expand; enlarge; extend
- 散 : 散動詞1. (由聚集而分離) break up; disperse 2. (散布) distribute; disseminate; give out 3. (排除) dispel; let out
- 系 : 系動詞(打結; 扣) tie; fasten; do up; button up
- 數 : 數副詞(屢次) frequently; repeatedly
- 電子 : [物理學] [電學] electron
- 系數 : [數學] coefficient; ratio; modulus; quotient; factor
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The effects of the fabrication conditions on the crystal structure, grain size, micromorphology and electrochemical performance of these materials have been studied in depth. the reaction mechanism of the low - heating solid - state reaction method has also been investigated. in addition, a novel electrochemical method ( rpg method ) based on the concept of " ratio of potentio - galvano - charge capacity " has been for the first time developed to determine the diffusion coefficient of lithium - ion within insertion - host materials on the basis of the spherical diffusion model
本論文較系統地考察了低熱固相反應法合成鋰離子電池正極材料的可行性問題,研究了工藝條件對材料的晶體結構、晶粒尺寸、微觀形貌及電化學性能等的影響,探討了低熱固相反應的機理,並通過引進「恆壓-恆流充電容量比」的概念,給出了一種測定鋰離子嵌入脫出固相擴散系數的新方法。The voltage of lithium - intercalation reaction, impedance and structural stability of intercalation - type cathode material were analysed and calculated. theoritical results show that the reaction voltage depends on the content of lithium and the bond energy, and that the key ways to lower the electrode impedance are to increase the electronic conductivity of the electrode and the diffusion coefficient of lithium ion in the host and to decrease the size of powder. in addition, the thermal stability of lithium - insertion structure can be improved by using crystallographic co - lattice theory and doping treatment
本文從嵌入式陰極材料的嵌鋰反應的電壓、阻抗及結構穩定性的分析和理論計算著手,得到了電壓取決于基體中各種離子間的鍵能及鋰含量、降低電極阻抗的關鍵是提高電子型導電性和li ~ +在基體中的擴散系數及減小粉末粒度的理論依據及其利用晶體的共格原理和摻雜改性的方式來提高材料嵌鋰結構的熱穩定性的設計思路。The membrane properties were found to be dependent upon the content of styrene. the membrane physic - chemical properties compare to nafion 117 except that their chemical stability has to be further improved to make them acceptable for practical use in the proton exchange membrane fuel cell. the proton transport through the membrane follows the " liquid - like " proton conductivity mechanism y and the water balance is important for the working condition of the fuel cell
對磺化膜的研究分析表明:膜的性能參數如離子交換容量、吸水率、水合系數、形體穩定性、導電性能、化學與熱穩定性等依賴于膜中苯乙烯含量,且接枝苯乙烯相互間的位阻效應對膜性能影響很大;膜的性能可與nafion膜相比較;質子在膜中的傳導遵循「似液體」質子傳導機理;電滲析與擴散作用使膜保持水平衡。6. the durability of concrete structures resisting chloride diffusion in different water cement ratio and different contents of fly ash and silica was analyzed and durable life was predicted based on the results of the test, which will be helpful to preparation of high performance concrete ( hpc ) as well as durability design and assessment of concrete structures
系統地研究了低水膠比及摻加粉煤灰、硅灰的高性能混凝土的電滲透性和氯離子擴散系數,分析了水膠比以及粉煤灰和硅灰等活性集料對混凝土結構抵抗氯離子侵蝕的耐久性能的影響,並對高性能混凝土結構抗氯離子侵蝕的耐久壽命進行了預測,為氯鹽污染環境下高性能混凝土的配製以及混凝土結構耐久性評估與設計提供參考。Compared with green light - emitting device, blue oled has many problems such as brightness, efficiency, stability, and color saturation, in this study we investgaited the blue oleds systemically : 1 ) double heterosturcture oled was charaterized. due to the introducing of electron transport layer alq3 and hole - blocking layer balq3, the energy matching was more reasonable and the carrier injecting was more effective in the double - layer device. the maximum efficiency and luminance of this device attained to 1. 90 lm / w and 10, 000 cd / m2, respectively
其次,由於一直以來藍光oled器件的研究處于相對落後的狀態,其發光亮度、效率、穩定性和色純度都無法綠光器件相比,所以本論文在以下幾個方面對藍光器件的性能進行了系統的研究: 1 )研究了雙異質型藍光oled器件,由於本研究引入了空穴阻擋層,使得載流子的復合和激子的擴散被限定在發光層內,器件的發光效率達到了1 . 90lm / w ,最大亮度達到了10000cd / m2 ,比傳統結構器件的效率和亮度提高了約一個數量級; 2 )制備了結構為ito / npb / balq3 / alq3 / mg : ag的oled器件,研究發現,當改變各有機層厚度時,器件的電致發光光譜發生了從綠光到藍光的移動。By analyzing of the potentiostatic transients, the diffusion coefficient d of the depositing nickel ions and saturated nucleus number density nsat were estimated, the effects of applied potential on nucleation and growth ware also discussed
通過分析恆電位暫態曲線,求出鎳離子的擴散系數d ,以及不同外加電位下的飽和晶核數密度n _ ( sat ) ,探討了外加電位對成核作用的影響。From the concentration dependence of bsa apparent diffusion coefficients, protein interaction parameters have been regressed. it bears a net effective charge of - 9. 0 and has a hamaker constant of 2. 8ket
根據擴散系數隨蛋白濃度變化的斜率與離子濃度變化的相關性,回歸出了蛋白相互作用參數,蛋白所帶的有效電荷zp二一9 . oe 、 hamaker常量= 2Another important conclusion the present study reached is that the controlling of diffusion coefficient do and evaporation coefficient f0 is efficient for the deduction of the possibility of the " popcorn " delaminations, in specific with controlling evaporation coefficient
對裂尖能量釋放率的影響較大,因此,控制擴散系數do和蒸發系數f 。能有效地降低電子元件發生「爆米花」式脫層斷裂的可能性,尤其是控制蒸發系數f 。The results of measuring h + diffusion coefficient of each charge - discharge cycle show that the coefficient of the sample electrode and the sample electrode added ni ( oh ) 2 do not decrease with the cycles. therefore, the reversibility of electrode is improved. meanwhile, it is confirmed that ni ( oh ) 2 can reduce the formation of inactive mn3o4
在每一周充放后的質子擴散系數的測定結果證實了採用部分還原樣以及摻ni ( oh ) _ 2的樣品電極在充放過程中,質子擴散系數並不減小,電極的可逆性提高,同時也證實了ni ( oh ) _ 2在電極的放電區間內能有效抑制mn _ 3o _ 4的形成分享友人