膜比阻 的英文怎麼說

中文拼音 []
膜比阻 英文
specific membrane resistance
  • : 名詞1. [生物學] (像薄皮的組織) membrane 2. (像膜的薄皮) film; thin coating
  • : Ⅰ動詞1 (比較; 較量高下、 長短、距離、好壞等) compare; compete; contrast; match; emulate 2 (比...
  • : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
  1. The patch clamp experiment : the cell - attached and inside - out configurations of the patch - clamp techniques were used to investigate single channel properties of nmd a receptors in the actuely dissociated neurons of the marginal division in the rat striatum, recording the current amplitude. long / short term opening / closing times indexes and the effects of incitants and agonists of the nmd a receptors on those parameters. we find that two types of conductance of 42ps and 20ps were recorded, the 42ps was the advantaged conductance

    本研究是在本實驗室以前研究的基礎上,通過片鉗( pachclamp )觀測sd ( sprague - dawley , sd )的mrd上nmda受體通道的電生理特性;繼而對青壯年sd大鼠的mrd 、海馬進行毀損並腹腔注射nmda受體滯劑ktm ( ketamine , ktm ) ,觀察其對大鼠學習記憶能力的影響:對于學習記憶能力下降的老年鼠進一步做顱內定位注射nmda受體激動劑與抑制劑,觀察其在特定部位的作用;最後,應用fmri ( functionalmagneticresonanceimaging ; fmri )對注射ktm的志願者做學習記憶與痛覺的對觀察。
  2. Reynolds numbers ( based on average velocity at passage inlet and hydraulic diameter of the passage ) are changing from 20000 to 80000 and the extraction ratios ( suction ratios, sr ) are changing from 0. 30 to 0. 60 for each test model. so the influences of reynolds numbers, suction ratios and etc. on the discharge coefficients and pressure loss characterist ics are also presented. flow fields of typical passages are visualized with the flow visualization techniques and measured with hot - wire anemometer

    對每一種通道結構,實驗在不同通道進口雷諾數( re = 20000 、 40000 、 60000 、 80000 )和不同通道總出流( sr = 0 . 30 、 0 . 45 、 0 . 60 )下進行,以研究這兩個流動參數及其它相應變化的參數(氣孔的雷諾數re _ h 、氣孔與通道的動量i等)對出流特性和流特性的影響規律。
  3. Comparative study of carotid endarterectomy under general anesthesia and cervical plexus block

    全麻和頸叢滯行頸動脈內剝脫術的對研究
  4. Endometriotic ureteral obstruction is a serious event commonly diagnosed late and which usually results in a high rate of renal loss before recognition

    子宮內異位造成的輸尿管塞是很嚴重的問題,通常較遲才被診斷出來而且有很高的例造成腎功能喪失。
  5. Generally, the membrane thickness is much larger than the pore dimension. therefore, the resistance of the pore channel was the control resistance of the membrane diffusion process. while the existences of the stephen diffusion and pore interaction well explained the reason why the total membrane surface would be used as the interfacial area through where the mass transport took place

    盡管由於的厚度孔的尺寸要大很多, stephen擴散以及孔之間的相互作用對通過的總擴散力影響很小,但它們存在的結果是使整個表面的氣體濃度趨於一致。
  6. 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

    對磺化的研究分析表明: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中苯乙烯含量,且接枝苯乙烯相互間的位效應對性能影響很大;的性能可與nafion較;質子在中的傳導遵循「似液體」質子傳導機理;電滲析與擴散作用使保持水平衡。
  7. For many applications thin - film resistors and capacitors offer certain distinct advantages over their junction counterparts

    在許多場合,薄、薄電容與結電、結電容相有一些明顯的優點。
  8. On the base of the development of thick film pastes technology, ru - based thick film resistor pastes have been studied due to select conductive phase and inorganic binder. state - of - the - art techniques such as rolling, screen printing and sintering were used for sample preparation. effects of ingredients, printing parameters and sintering parameters, microstructure on the properties of thick film resistor ( trf ) have been analyzed with xrd, sem, dsc and electrical tests

    本文在跟蹤國內外厚漿料技術發展的基礎上,以釕酸鉍/銀系厚漿料為研究對象,通過選用合適的功能相和無機粘結相成分,以三輥軋制、絲網印刷和高溫燒結等制備工藝為技術特徵,採用xrd 、 sem 、 dsc等分析方法和電性能測試手段,系統的研究了漿料中各相的成分配、制備工藝參數,以及層微觀結構對厚性能的影響規律。
  9. In this paper, a theoretical investigation of the drag and noise reduction by riblets is carried out, and these numerical results are compared with those obtained from experiments with riblets in water tunnel, and it is found that they agree with each other in tendency and numerical value

    本文從理論上分析了條紋表面的減降噪特性,並將計算結果與水洞模型貼實驗進行了對,兩者在趨勢和數值上基本一致。
  10. Research on surface and grain boundary passivation mechanism obtained effects of surface recombination on crystalline silicon solar cell performance and the theoretical expression of grain boundary recombination velocity. the limit ratio of short - circuit current increment for anti - reflection coating utilization on solar cells was obtained. the crystalline silicon solar cell spectral response, contact resistance and minority carrier lifetime measurement systems were established

    鈍化機理研究獲得了表面復合對不同表面摻雜濃度晶體硅太陽電池性能的影響、表面和界面復合速度的理論表達式;研究得到了減反射對太陽電池短路電流增量的極限;建立了太陽電池光譜響應、柵線電極接觸電和少子壽命等測試系統。
  11. In recent years, al - doped zno ( azo ) thin films has become a hot issue of transparent conductive thin films field and preferred materials instead of ito films not only because of their comparable optical and electrical properties ( high optical transparency in the visible range, low electrical resistivity ) to ito films, but also because of their lower price and higher thermal and chemical stability under the exposure to hydrogen plasma than ito

    近年來,由於al摻雜的zno薄( azo )具有與ito薄擬的光電性能(可見光區高透射率和低電率) ,又因其價格較低以及在氫等離子體中的高穩定性等優點,已經成為替代昂貴的ito薄的首選材料和當前透明導電薄領域的研究熱點之一。
  12. Compared to the single hg2 + treated, se4 + + hg2 + the mixed exposure could restrain the fall of the activity of t ? aoc, sod and gsh ? px, reducing the level of lipid peroxidation, and alleviating membrane damage, represented with the heighten na + - k + - atpase activity and reduced mda concentration, resulting in the increased resistance to hg2 + damage. however, se4 + were incapable of preventing from the damage of hg2 + ultimately, along with the exposure period, regardless of the fact that the obvious enhancement of t - aoc and atpase activity

    混合處理后,與單一汞處理相, se ~ ( 4 + )在一定程度上能有效抑制汞脅迫引起的t ? aoc , sod , gsh ? px的降低,降低脂質過氧化水平,減輕了對的硒對汞致劍尾魚抗氧化系統的毒害和生理損傷的拮抗作用損傷,表現為隨一k + / atpase活力升高,而mda含量降低,提高了機體對hg葉毒害的抗性;但隨著染毒時間延長,硒不能最終止毒害的加深。
  13. On the basis of study on structure and mass transfer, ideal model of membrane structure was built up, in which skin layer should be as thin as possible ensure resisting water to pass though membrane ; finger pore should be as long as possible in the membrane ; proper pore size ; loose sponge tissue

    首先對利用相轉化法制備的微孔形態結構進行研究,確定傳導力較小的理想結構模型,緻密層在能止微孔被浸潤的情況下盡可能薄;指狀孔在厚方向所佔例盡可能大;孔徑大小適宜;海綿狀組織結構疏鬆。
  14. In chapter 5, using coordinate graphs, the influences of rectangular screw, trapezoidal screw and serrate screw on the generated axial thrust force, minimal mucus film thickness, load capacity of hydrodynamic pressure and circumferential friction are compared and analyzed

    第五章,通過坐標圖對分析了微型機器人在矩形螺紋、梯形螺紋、鋸齒形螺紋下,各螺紋參數對軸向摩擦牽引力、最小粘液厚度、粘液承載能力、周向摩擦力的影響。
  15. This paper introduces several dielectric foil switches, analyzes their characteristics in respect of the output pulse shape, switch mechanism and output impedance etc

    摘要介紹了國內外幾種絕緣薄開關,從開關的結構、對應的輸出方波波形和輸出抗等幾個方面進行了較,分析了其各自的優缺點。
  16. The testing result in sandy soil shows that the law that the principal parameters of the knives exert influence on the draft approximately approaches to the result theoretically driven out, and a pair of knives has been chosen to be a favourable one with satisfactory performance and smaller draft for the plastic film mulched corn field through the contrast tests to number of pairs of knives

    砂質壤土中的試驗表明,鏟刀主要參數對牽引力的影響規律與理論推導結果相近。通過多副鏟刀的對試驗,選取出對玉米茬地進行起、起茬作業時,性能良好,牽引力較小的鏟刀。
  17. The dynamics behaviors of the flexible jeffcott rotor system supported by unsteady short dynamic bearing are investigated. based on nonlinear unsteady - state dynamic n - oil film force model described by three functions the local stability of the periodic solutions with the controlling parameters, rotational speed ratio, imbalance amount, damping ratio and viscidity, are predicted by using the floquet multiplier. it is found that the period doubling bifurcation is caused by a certain imbalance amount and the hopf bifurcation is created by the lost stability of the oil - film

    研究了非穩態動載短軸承支撐的jeffcott柔性轉子系統的動力特性,基於可用三個函數表示動態油的非穩態非線性油力模型,將轉速、不平衡量、、粘度作為控制參數,利用floquet乘子預測周期解的局部穩定性,發現倍周期分叉是由一定量的不平衡引起的,而hopf分叉是由油失穩造成的。
  18. The same with normal metal film, fe0. 3cu0. 7 ( 500nm ) granular film have positive coefficient of temperature. the negative resistance is observed in fexcu ( 1 - x ) granular film under certain condition. this characteristic of negative resistance is weakened or changed to positive with the change of thickness of film, ratio of fe atom to cu atom, anneal, test temperature

    N ) fecu顆粒月一i特性研究發現,極小電流下電測量具有不確定性; fe cu矚00川)顆粒己與普通金屬薄一樣,具有正的溫度系數; f民c山x顆粒在一定條件下存在負現象,並且隨顆粒厚度、鐵銅原子、退火條件、溫度的改變分別存在負特性的減弱或向正特性的轉變。
  19. The film resistance parallel - connected between the emitter and the base of power devices can

    的升尺、 。
  20. Testing methods for specific resistivity recovery characteristic of water filtered by membranes

    過濾水抗復原特性的測試方法
分享友人