field concentration 中文意思是什麼

field concentration 解釋
戰地濃度
  • field : n 菲爾德〈姓氏〉。n 1 原野，曠野；（海、空、冰雪等的）茫茫一片。2 田地，牧場；割草場；〈pl 〉〈集...
  • concentration : n. 1. 集中。2. 【化學】提濃，蒸濃，濃縮；濃度；稠密度；【礦物】汰選，選礦，富化。3. 集中注意，專心。
  1. Arteriosclerosis is caused by the sediment formed by lipoid such as cholesterin on the inner side of blood vessels. the magnetic field can speed up the hydrolysis of cholesterin in a purpose to reduce the concentration in the blood

    動脈硬化是由於脂類物質特別是膽固醇在血管內壁上沉積對內膜造成損害，而誘發血管硬化，磁場能加速膽固醇水解作用。
  2. The results indicate that in niobate glasses, as the concentration of nb2o5 increases, the covalence becomes strong, the symmetry becomes low and the electron - phonon coupling becomes strong, thus the lifetimes become short, the nonradiative transition processes and the temperature - quenching become strong and the value of crystal field parameter b20 becomes small

    （ 6 ）研究了妮硅與妮磷系列玻璃發光特性與組份的關系，發現隨著nbzos濃度的增加， eu一o鍵共價性增強，局域環境對稱性降低，電一聲子禍合增強從而導致sd 。
  3. Specialism and perfection : nobody can achieve the best. concentration is our credendum. we will keep developing constantly in our field

    專精：沒有人可以什麼都做到最好，專注是我們的信條，我們將在自己的領域里持續發展。
  4. Firstly, simulate flow field of rear smoke channel, plot velocity magnitude and ash concentration distribution in section of entry of heat pipe air preheater, compare with data which were measured in guiyang power station, verify simulation to be reasonable and right. secondly, simulate all kinds of factors which affect flow field ' s uniformity such as length, thickness, location of diffluent board, ash concentration, ash diameter, and so on, find the chiefly factors. thirdly, install guide board in curve channel in rear smoke channel, then simulate its " flow field, plot velocity magnitude and ash concentration distribution

    在此基礎上模擬在冬夏兩季不同情況下，不同流速對熱管空氣預熱器壁面溫度的影響；然後對影響整個流場分佈的各種因素：包括分流板長度、厚度、偏離中心流道位置的偏離度、飛灰濃度、飛灰粒徑等因素進行數值模擬；最後提出在分流煙道轉彎處加裝導流板，並模擬加裝導流板后的流場分佈，得到下級空氣預熱器出口、熱管空氣預熱器進口處的斷面速度場分佈、濃度場分佈，以論證加裝導流板能達到流場均勻化的作用。
  5. The reason to cause this phenomenon is due to the change of electric field in the blue oled to induce the probality of the carrier shifted and the hole - electron recombination zone changed, which was a possible alternative to achieve color display. 3 ) device with the structure of ito / npb / adn : balq3 / alq3 / mg : ag was fabricated. when the balq3 dopant concentration was about 25 mol %, a high performance devcie with luminous efficiency of 1. 0 lm / w, the peak of emission spectrum at 440 nm, the cie coordinate at ( 0. 18, 0. 15 ), and half lifetime of unencapsulated device about 950 hrs was achieved

    導致本現象的原因是由於各有機層電場強度的變化影響了空穴和電子的隧穿幾率，從而導致載流子的復合區域發生改變而發出不同顏色的光; 3 ）制備了結構為ito / npb / adn : balq3 / alq3 / mg : ag的藍光oled ，空穴阻擋材料balq3的摻入顯著影響了oled的光電性能，當balq3的摻雜濃度為25mol %時， oled的發光效率為1 . 0lm / w ，發光光譜的峰值為440nm ，色純度為（ 0 . 18 ， 0 . 15 ） ，未封裝器件的半衰期達到了950小時; 4 ）在藍光材料adn中摻雜npb 、 balq3和tbp三種材料時，不僅改善了器件的發光亮度和色純度，而且提高了器件的發光效率和壽命。
  6. Based on recent published research, explanation about the experimental results was also given. remanent polarization and coercive field decreased with the increasing of la content. the crystal structure transformed from tetragonal to cubic when la concentration increased to 28mol %

    在薄膜的鐵電性質方面，隨著摻鑭含量的升高，剩餘極化和矯頑場逐漸降低；當鑭含量達到28mol時薄膜的結構從四方相轉變到立方相。
  7. ( 1 ) effects of externally applied electric fields on photorefractive two - beam coupling are analyzed. theoretic dependence of the intensity gain factor on applied field e0 in sbn : 60 is presented. and the experimental results obtained in two sbn : 61 : cr crystal samples with different dopant concentration show clearly that for properly applied fields, a larger f can be achieved effectively than that obtained with no field applied

    由兩塊不同摻cr濃度的sbn 61 cr晶體得到的實驗結果同時表明，適當的外電場作用能夠有效提高晶體的二波耦合增益，並且，外電場的作用使晶體的響應速度大大提高，而晶體的最佳耦合角與外電場之間沒有明顯的依賴關系。
  8. Effect of magnetic field with different strengths on the free radical concentration in sesamum indicum seeds

    梯度磁場對芝麻種子生物效應的影響
  9. Then we studied the effect of junction uniformity on the aluminum - alloyed back surface field to solar cell performance. the formation theory of aluminum - alloyed back surface field, the effect parameters to the doping concentration and the junction depth were analyzed

    比較了兩種商業太陽電池的雜質濃度分佈及結深情況；敘述了鋁背場的作用及形成原理，對影響鋁背場表面濃度和結深的參數作了分析。
  10. The dissertation consists of such issues as summary of international carriage of passenger, scope of liability, limitation amount, compulsory limitation insurance and soon. the author ' s concentration on international carrier liability system is aiming to help to establish the new legal system in this field to which little attention has been paid

    為此，作者建議就海上旅客人身傷亡的第三方責任對承運人進行強制保險並通過法律賦予受害旅客以第三人直接訴訟的權利，並重點分析和研究了其中蘊涵的理論性和操作性問題。
  11. Also, the author ’ s design strategy and creativity has been given in this paper. specifically, it includes : based on the feasibility analysis of the fit selection of control parameters in the aeration process, the aeration process of wastewater treatment of the joint - constructional complete - mixed activated sludge process has been aimed at in this paper. then, the state equations of the aeration process have been proposed in this paper, which is on the base of dissolved oxygen concentration ( do ) and discharge quantity of sludge ( qw ) as control variables, the concentration of bod and sludge as state variables. based on the present study on optimization control of wastewater treatment, the multivariable optimal control model with restriction factor has been presented in the paper with introducing modern control theory and system analysis into the field of activated sludge wastewater treatment,

    具體包括:以完全混合、表面曝氣合建式活性污泥工藝的污水處理曝氣過程為研究對象，在闡述了曝氣過程式控制制參數選取可行性的基礎上，建立了以溶解氧濃度do和活性污泥排放量qw為控制變量，以曝氣池中有機物濃度s和微生物濃度x為狀態變量的活性污泥曝氣過程的基本狀態方程;運用現代控制理論的觀點和污水處理理論，在現有關于污水處理最優控制問題研究的基礎上，建立了有約束條件多變量能耗最小數學模型，該數學模型是以有機物排放總量和狀態變量的末值條件作為約束條件，曝氣過程的能耗最小作為目標泛函;採用增廣拉格朗日乘子法對最優控制問題進行轉化，並對應用極大值原理求解能耗最小這一最優控制問題進行了詳細的解析;引入約束運算元，應用具有控制約束的共軛梯度演算法對能耗最小這一最優控制問題進行求解，並進行模擬實驗驗證。
  12. Using the two - site kinetic sorption model and the two - region model, cadmium transport in field soils was simulated, the average of the numerical solution of cd transport at every soils sample was obtained and the spatial distribution of cd concentration was computed

    用基於土壤水動力學和溶質運移的物理、化學非平衡模型的數值模型，模擬了污水淹灌條件下鎘在試驗小區土壤中的運移動態，獲得了鎘在土壤中淋溶的空間分佈。
  13. Abstract : based on the data obtained from field observations and deformation monitoring, this paper deals with the deformation and failure of a double - decked slope composed of soft rock strata in its lower part and hard - brittle rock strata in its upper part. it is demonstrated that the deformation of this kind of slopes is always initiated by the non - homogeneous rheological compression of the lower soft rock strata, leading to the tension fracture and toppling of the upper hard rock strata, and at last the sliding of the whole deformed body will be caused by the shear failure along the stress - concentration zone in the lower soft rock mass under the actions of the gravitational loading and infiltration water

    文摘:以現場考察和變形監測資料為依據，探討一個下部有軟弱基座，上部為硬脆性坡體的「二元結構」邊坡的變形破壞問題，揭示這類邊坡的變形總是以下部軟弱巖體的不均勻壓縮流變為先導，進而引起上部硬脆性坡體的拉裂與傾倒，最終通過滲入水的作用，使下部承載狀況已進一步惡化了的軟弱巖體，沿剪應力集中帶發生剪切破壞而導致整個變形坡體的下滑。
  14. Algan / gan hemt has high breakdown electric field, fast electron drift velocity and large electron concentration, so it has been used more and more in high frequency and large power fields

    Algan / ganhemt由於具有擊穿電壓高、電子漂移速度快和電子濃度大等特點，已被越來越多地應用於高頻及大功率領域。
  15. The temperature field along the axis, axial velocity, the turbulent energy, and the concentration of the particles were investigated when the temperature field varied. the numerical experiment shows that the thermophoresis force changes the concentration of the 2 - micron particle, decreasing in the main flow and increasing in the near - wall region

    數值實驗的結果表明在兩相流模型中添加熱泳力源項會對2微米顆粒在流場中的濃度分佈有很大的變化，主流區的顆粒濃度降低，近壁區顆粒濃度在溫差不大的時候，提高幾十倍。
  16. The field surveys and lab experiments tvere designed to study the distribution and source of pah " poliution in x " ater, sediment ; the pah " concentration and distribution in marine fish organ ( of the fish lateolabimjapo ) 1iclls and pagivsonills inajor ) ; the pah " bcf factors of liver and bile in marine fish ( laleolabral jtwo ) 1itits and pag7vso ) ) ills ) ) 1ajbr ) ; the reiationship between pah " exposure and biochemicai response ( cat sod, lpo ) and the metabolic rate of naphthalene and pyrene in fish bile

    4優化了魚膽汁中1 ?羥基萘和1 ?羥基芘的熒光分析方法，測定了1 ?羥基萘和1 ?羥基芘在鱸魚、真鯛膽汁中的含量，探討了萘和芘在魚膽汁中的代謝比率、清除作用。結果顯示： （ 1 ）膽汁中萘的代謝比率低，易蓄積；而芘的代謝比率高，易清除。
  17. Positive electrode and negative electrode that execute spanning crack prevention are simulated as the source point and merged point, so the temperature field owing to the concentration of current around the crack tip is educed at the moment when the current is switch on

    將實施跨越止裂時的正、負電極比擬為電流場中的源和匯，從而導出了在瞬間電流作用下，裂紋尖端附近區域因繞流而形成的溫度場。
  18. The result showed that the numerical model could satisfactorily reflect the sediment concentration field, and calculate the back silting intensity on the approach channel in lianyungang harbor

    研究結果表明，所介紹的研究方法可以合理地描述含沙量場特性以及計算進港航道回淤量。
  19. Electric field concentration of pollutant aerosols : association with cancer remains to be tested. professor denis l. henshaw, phd, h. h. wills physics laboratory, university of bristol, u. k

    摘要：電磁場聚集有害物質和塵埃可能是在電力線附近癌癥風險增加的原因。
  20. Urban ventilation ; urban climate model ; flow field ; concentration distribution

    城市通風能力城市氣候模式流場濃度場
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