通道擴散 的英文怎麼說

中文拼音 [tōngdàokuòsǎn]
通道擴散 英文
channel diffusion
  • 通 : 通量詞（用於動作）
  • 道 : Ⅰ名詞（道路） road; way; route; path 2 （水流通過的途徑） channel; course 3 （方向; 方法; 道理） ...
  • 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
  • 通道 : thoroughfare; passageway; pass; enterclose; gallery; drong; tunnel; avenue; alure; way; row; key ...
  1. Medicaments is absorbed through the skin, outside changing property to affect except the put in order that gets medicaments itself, still with skin itself appear a gender to have affinity, the corneous layer in the skin is the main obstacle that the influence appears a skin to absorb

    藥物經皮膚吸收進入體內的主要途徑有： （ 1 ）通過毛細血管通道；經過角質層轉運和皮膚深層轉運而吸收入血，阻隨血液循環到達人體各部位； （ 2 ）水合作用：角質層經水合作用后，可膨化呈多孔狀態，有利於藥物滲透； （ 3 ）熱刺激作用：可使局部血管擴張，血液循環加快，有利於藥物的穿透彌散和吸收。
  2. Shortwave channel is time varying transmission channel. it has dispersion in frequency and time domains. this characteristics hinds the data transmi - ssion at high speed and the correction of received data. in this dissertation i have analyzed the statistic characteristic of shortwa - ve channel, established the model of shortwave channel and simulated the rayl eigh fading distribution. the technology of spreading spetrum has been proved that it has the capability for anti - multipath and discerning multipath

    在短波通信中，由於通道的時間色散和頻率色散，引起多徑展寬和多徑衰落，前者限制了數據的傳輸速率，後者造成短波數據通信中出現突發錯誤，為了解決多徑效應對短波通信的影響，本文所做工作如下：首先詳細分析了短波通道的統計特性，建立其數學模型；其次分析了擴頻通信的特點，從理論上證明擴頻技術不僅具有抗多徑干擾能力，而且具有分離多徑的能力；介紹了傳統的rake分集合併技術的特點。
  3. In acid copper sulphate solution, the nc copper has a more negative corrosion potential which is decreasing with reducing the grain size and diffusion impedance was only found in the as - prepared and as - annealed at 180 ? nc copper due to the diffusion within the pores and channels on the surface. both the tafel plots and eis study demonstrated that the nc copper exhibits a higher corrosion current and lower polarization resistance than its mc couterpart

    在酸性硫酸銅溶液中，納米晶銅的腐蝕電位比微米晶銅要負，並且隨著晶粒尺寸的減小而降低。 eis研究表明，未退火的和180退火的納米樣品中發現了擴散阻抗，與表面孔洞和通道中的擴散有關。極化曲線外推法和電化學阻抗研究都表明納米晶銅的腐蝕電流比微米晶銅高，而極化電阻要低。
  4. Note : tunnel includes merging diverging area immediately outside tunnel

    注:隧道範圍包括管口兩端的交通匯聚及擴散區
  5. Drive arrangements for axial fans with or without evase and inlet box

    裝有或未裝出風擴散道和進氣箱的軸流式通風機的傳動設備
  6. The research results show that the radius of the gas channels and the electronic conductivity in carbon phase of the reaction layer, and the porosity of the gas diffusion layer are relatively less important

    研究結果表明氣體擴散層孔隙率，反應層氣體通道的半徑以及碳相中電子傳導率等參數的變化對電極性能影響不大。
  7. The calculation results show that the radius of the gas channels in the reaction layer and the porosity and average pore radius of the gas - diffusion layer seem to be less important for the performance of the electrode

    模型結果表明對于電極性能而言，氣體擴散層的孔隙率與平均孔徑以及反應層氣體通道的半徑，相對其他參數來說顯得不太重要。
  8. With dispersion, xpm can induce intensity fluctuations and timing jitter of the pulses in the receiver. it can also cause the spectral spreading of the channel so that crosstalk is introduced. all these effects put a tight limit on the capacity of the systems

    它與色散共同作用，會導致接收端光脈沖的變形（強度起伏） 、光脈沖的時間抖動以及通道的頻譜擴展，這些後果都會限制系統的性能。
  9. For membrane contactor process, the binary gas mixture diffusion through the pore channel should be considered as a transition diffusion of the absorbed momentum a through the stagnant momentum b. and the process would consist three steps : transition diffusion through the pore channel, stephen diffusion in the pore edge, and the pore interaction in the membrane surface

    對于孔形狀為近似橢圓形的聚丙烯微孔膜，在研究擴散問題時，其等效孔徑可採用葉孔擴散問題中的孔形狀校正公式來計算。在膜接觸器中，氣體通過微孔膜的擴散機理為過渡擴散，其擴散過程包括通過孔道主體的過渡擴散、微孔膜出口處孔道邊緣的stephen擴散以及孔之間的相互作用。
  10. Then a one - dimensional unsteady incompressible flow with moving pollutant source model was proposed. the continuity equation, momentum equation and convection - diffusion equation were discredited using finite volume scheme. thus a software for predicting the air velocity and pollutant in railway double track tunnels was developed

    接著，根據雙線鐵路隧道運營通風的特點，建立了一維不可壓縮非恆定流和流動污染源的物理模型以及山相應的連續性方程、動量方程和對流擴散方程構成的數學模型；在此基礎上，利用數值計算方法，編制了一套雙線鐵路隧道運營通風的數值計算程序。
  11. Let the student through teacher ' s explanation, the practice activity and the mutual discussion becomes aware the truth and the method, raises student ' s proliferation thought that to ask different innovative idea abilities and so on thought that negative thinking, achieves “ an study “ rom “ he academic society “ he educational goal finally

    讓學生通過教師的講解、實踐的活動和相互的討論悟出道理和方法，培養學生的擴散思維、求異思維、逆向思維等創新思維能力，最終實現由"學會"到"會學"的教育目標。
  12. The random particle - trace model simulate the turbulence diffusion

    顆粒的湍流擴散是通過隨機軌道模型來模擬的。
  13. Topics covered include : mass transport through membranes ( diffusion, osmosis, chemically mediated, and active transport ), electric properties of cells ( ion transport ), equilibrium, resting, and action potentials, kinetic and molecular properties of single voltage - gated ion channels

    內容包括：細胞膜上的物質傳輸（擴散、滲透、化學為媒介的傳輸以及主動傳輸） ；細胞的電子特徵（離子傳輸） 、平衡、靜息和動作電位；單個電壓門控離子通道的動力學和分子特性。
  14. 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。
  15. Research of error resilience technology for video communication based on h. 263 codec major : signal and information processing data : author : meng yan signature : tutor : zhang erhu liu shichang signature : abstract the reconstructed image quality can be degraded substantially by errors during the transmitting over the communication channel, especially when the video is compressed by temporal and spatial coding ways, which leads to error propagation in frame sequence, so the error resilience procedure should be performed to improve the reconstruction quality

    由於通信系統的通道不可避免的存在噪聲，傳輸數據流必然存在誤碼。對于h . 26x的視頻編碼流，由於空域和時域的壓縮方法以及熵編碼方法的應用，即使是一個比特的錯誤，常會影響一個區域的圖像不能正確解碼，同時錯誤的圖像還會擴散影響后續數幀圖像。因此有必要在標準解碼程序的基礎上，添加容錯功能。
  16. The results indicate that ( 1 ) faults are predominant pathways for oil and gas migration in the dina 2 struc - ture ; ( 2 ) the pressure released zones are available for oil and gas migration ; ( 3 ) capillary and buoyancy play an important role in sandstone with similar permeability ; ( 4 ) hydrocarbon migrates always along the predominant pathways, such as faults and associated sandstone in both sides ; ( 5 ) pathways of oil and gas migration have the nature of succession, such as oil driving water and following gas driving oil

    通過模擬實驗，揭示： （ 1 ）斷層是迪那2構造中油氣運移的主要通道； （ 2 ）泄壓區是油氣運移的有利指向區； （ 3 ）毛管力及浮力在滲透性相近的砂巖中起重要作用； （ 4 ）油氣咩是選擇優勢通道運移，在沿斷層運移的同時，也向兩側砂體中擴散； （ 5 ）油驅水之後的氣驅油運移通道具有繼承性的特點。
  17. In the thesis, we proposed a random lattice model of mea the lattice model randomly occupied by three kinds of particles, pt / c, nafion and ptfe ( poly - tetra - fluoro - ethylene ), was generated on a computer by the means of monte carlo method. it was supposed that current was only produced on those catalysts which have not only channels of electrons via carbon but also have channels of proton via nafion. the purpose of the work, in a word, is to find how many catalysts, pt / c, with such a two - types channels

    本文首先建立了質子交換膜燃料電池的膜電極的隨機方格子模型，在電極模型各格點位置用montecarlo方法生成隨機分佈的電極粒子、 nafion粒子和聚四氟乙烯團粒，認為只有那些既有質子傳輸通道，又有連續的電子通道和氣體擴散通道的胞元才產生有效的電流，而其餘胞元不產生電流，把電極的輸出電流轉化成一個概率事件。
  18. To verify their effectiveness, simulation studies are conducted to test the performance of the proposed turbo codes in awgn channels and flat fading channels. in these simulations, the modified max - log - map decoding algorithm and the golden - spread interleaver are applied

    模擬研究了採用優選擴散交織與改進的max - log - map譯碼演算法的turbo碼在加性白高斯噪聲（ awgn ）通道以及平衰落通道上的性能。
  19. Take european dvb - s standard applied to various satellite broadcast for example, the channel coding structure charts is established. the theory of modulation mode of qpsk and forward error correct including rs coding, convolutional coding, energy dispersal and interleaving are reseached. 4

    以歐洲的dvb - s適用於多種衛星廣播系統的標準為例，建立了通道編碼的結構圖，對數字視頻廣播中的前向糾錯（包括了rs碼，卷積碼、能量擴散和交織技術）和調制方式四相相移鍵控調制進行了研究。
  20. The unsteady. flow theory is used for calculate air flow velocity and one - dimension unsteady convection - diffusion model is used for calculate pollutant concentration ( called unsteady theory model in general, utm ), and a new tunnel control method based on utm and neural network model is developed

    本文首次採用更符合實際情況的隧道氣流?維非恆定流理論和污染物濃度?維非恆定對流擴散模型（統稱非恆定流理論模型）進行隧道通風控制方法的研究，並提出了一套基於非恆定流理論和神經網路模型的新的隧道通風控制方法。
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