theoretical concentration 中文意思是什麼

theoretical concentration 解釋
理論聚光
  • theoretical : adj. 1. 理論（上）的，學理上的 （opp. applied）。2. 假設（性）的；純理論的，推理的。3. 空論的 （opp. practical）。adv. -ly
  • 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. All stress concentration factors so far presented in this book discussed the geometric or full theoretical values.

    本書內所提到的全部應力集中系數都是幾何的或純理論值。
  2. The anion surfactant nals was the most efficient in the process and was selected as collector by orthogonal method. the interfacial tension and cmc of nals ( cmc 6. 5 10 - 3m ) in the solution was measured by hanging ring test, the function relationship between interfacial tensions and nals concentration was : = - 0. 9523 in 2c - 24. 534 in c - 81. 411. the relation of interfacial adsorption equilibrium in the solution system was respectively tested and calculated with gibbs equation and dynamic method. the conclusion showed that ( 1 ) the experiment result of dynamic method with was highly in coordination with the value which from theoretical calculation. ( 2 ) the surfactant molecule was in arrangement of monomolecular layer at the gas - liquid interface

    用吊環法測定了十二烷基硫酸鈉水溶液不同濃度與其界面張力的關系，擬合得到的回歸方程為= - 0 . 9523ln ~ 2c - 24 . 534lnc - 81 . 411 ，同時還測得其臨界膠束濃度值（ cmc為6 . 5 10 ~ （ - 3 ） m ） ，運用吉布斯等溫方程和動態法分別計算和測定了該溶液系統的界面吸附平衡關系，結論表明： （ 1 ）動態法測定結果基本吻合吉布斯方程的理論計算； （ 2 ）表面活性劑分子在氣?液兩相界面是以單分子層形式定向有序排列的。
  3. The meanings of this paper lie in the development and research of chinese libraries and chinese archives by through the theoretical research on xmarc. it will produce the marked effect for xmarc concentration information to be researched and practiced. the new solving schema of theme classification and the subject indexing of chinese information has been explored through excavating xmarc theme information voluntarily

    論文工作的意義在於通過對xmarc的理論研究，將我國圖書、檔案學科領域元數據的研究引向深入，探索國內外marc元數據集中信息描述的機制，這些研究取得了極有價值的實踐成果;通過自動發掘xmarc主題信息，為中文信息的主題標引、主題分類和主題檢索自動化探索出新的解決方案，從而增強我國網路信息檢索工具的實用性和提高信息檢索的質量。
  4. The change of indoor contaminating material concentration is dynamical simulated by adjusting the flow of fiowrator. at the same time, the path formulas of simulate pollutant source is modified by experiment, and providing theoretical base for dynamic simulation

    通過調節轉子流量計的流量來達到動態模擬室內污染物質濃度的變化情況，並根據對實驗結果的修正得出裝配式潔凈室室內模擬污染源的軌跡方程，為動態模擬提供了理論依據。
  5. 1 、 through the theoretical analysis and the medici simulation, according to the design directive, the structural parameters are designed comprehensively, including the dopant concentration and the depth of the emitter, the base dopant concentration and the depth ( especially the ge ratio ), the dopant concentration and the depth of the collector

    主要工作是: 1 、通過理論分析和medici模擬，綜合設計得出符合設計指標的結構參數，主要包括:發射區的摻雜濃度和厚度?基區的摻雜濃度和厚度及基區中ge的組分比?集電區的摻雜濃度和厚度。
  6. The authors used the theoretical model to calculate the radon concentration of air at a certain residential area of linchuan city, jianxi province, which has been preliminarily proved to the effective

    運用大地大氣氡交換模型計算了江西臨川市某住宅區空氣中氡濃度，取得了初步的應用效果。
  7. Theoretical analysis indicates, the two technology helps reduce the concentration of current, lower the peak junction - temperature, and effectively avoid the appearance of devices " breakdown caused by heat and current

    理論分析表明：上述兩種技術，有利於減小電流集中現象，降低器件峰值結溫，避免熱擊穿和二次擊穿的發生。
  8. By acquiring these parameters, the paper can compute the concentration of fly ash which provided the theoretical basis of the measuring system

    從而為系統測量飛灰含碳量提供了理論支撐。論文完成了測量系統的安裝和標定工作。
  9. According to the features of naphthenic base oil ( i. e., high nitrogen and low sulfur content ) and based upon theoretical analysis of the h2s concentration needed for phase equilibrium of nickel sulfide and tungsten sulfide in hydrogen, the most economic quantity of sulfiding agent injected into the reactor for supplement of sulfur in lube oil hydrogenation catalysts was obtained

    摘要針對環烷基油高氮、低硫的特點，通過對硫化鎢和硫化鎳在氫氣中相平衡態所需硫化氫濃度的理論分析，對反應器入口所需補硫量作了詳細的闡述，得出了最經濟的補充注硫量。
  10. Based on reynolds equation and solid particles carrying model, a theoretical model for piston ring - cylinder liner lubrication in liquid - solid lubrication had been proposed. the effect of solid particles " diameter and concentration are introduced in the model. the influence of the particles " diameter and concentration on load, film thickness and friction force had been analyzed

    基於reynolds方程及顆粒承載模型，引入顆粒直徑、濃度等參數，並建立了分析液固二相潤滑下活塞環?缸套摩擦副潤滑狀態的模型，探討了不同顆粒直徑和濃度對承載、油膜厚度及摩擦力的影響。
  11. Based on the theoretical analysis and experimental researches, it is presented that the wider spectra are resulted from the many fluorophores with large numbers of vibrational energy levels on the ground level in the blood cells, and the reduction of the spectral intensity is due to the reabsorption of the blood cells and the energy transfer of the collisions between the fluorophore and another one or other macromolecule. on the other hand, when the concentration of the blood cells is increased, the reabsorption of the blood cells, the secondary fluorescence due to the reabsorption and the influence of the concentration on the energy levels of fluorophores are all the factors of the red - shifted spectral peaks

    在進行理論分析和研究的基礎上，提出了因血細胞中存在多種熒光團，且這些熒光團的電子能級上又存在大量的不同的振動能級，從而導致被激發的熒光團發出較寬的熒光光譜；血細胞濃度的增大，熒光團以及其他大分子之間的距離變小，造成它們之間因碰撞的能量轉移概率加大，因而易產生熒光猝滅，結果導致熒光強度的變小；血細胞溶液中重吸收所導致的熒光猝滅和二次熒光發射，以及血細胞濃度的變化對其中熒光團能級系統的影響都是導致熒光峰值波長「紅移」的原因；進而研究了led光誘導血細胞產生熒光光譜的機理。
  12. Aim : to analyze the mechanism, thermadynamic theoretical basis, dynamic mechanism and influencing factors of thermally induced phase separation ( tips ) in order to completely grasp the factors affecting the size, distribution and form of pores, so that the adjusted range of pore can be widened and the preparation of porous membrane can be repeated and controlled. methods : considering from the structural characteristics of tissue engineered materials, the methods of preparing porous membrane using tips technique, the hermadynamic theoretical basis, dynamic mechanism and influencing factors were analyzed, the problems and investigative directions in the future were also analyzed. tips technique is a process of phase separation of polymer homogenous solution under quenching, and it is suitable for diameter and structural form of the micropore materials prepared using tips are closely correlated with the kind and dispensing proportion of polymer attrnuant, polymer concentration and polymer molecular mass, etc. conducted, including determination of polymer - solvent system phase diagram, study of form and appearance of porous membrane of different thickness, study of form and appearance of porous membrane prepared with systems of different x, which is the parameter of polymer - solvent interaction

    目的:分析熱致相分離成膜過程的機理、熱力學理論基礎、動力學機制以及影響因素，以便充分掌握影響孔度大小、分佈、形態的因素，使孔度調控范圍得以拓寬，使多孔膜的制備能重復可控.方法:從組織工程材料結構特點出發，分析熱致相分離聚合物多孔膜的制備方法及該法成膜的熱力學理論基礎、動力學機制以及影響因素.並分析實驗中存在的問題及今後的研究方向.結果:以熱致相分離法可制備聚合物多孔膜.熱致相分離法制備多孔膜是高聚物均相溶液在淬冷條件下發生相分離的過程，它適用於上臨界共溶溫度型聚合物一稀釋劑二元體系.熱致相分離法成膜的過程，可以認為是旋節線機理佔主導地位.熱致相分離法制備的微孔材料，其孔隙率、孔徑大小、結構形態與聚合物稀釋劑的種類、組成配比、聚合物濃度、聚合物分子量等因素密切相關.結論:可採用熱致相分離技術制備多孔膜，通過改變不同的成膜條件可獲得一系列不同孔徑尺寸和孔徑分佈的多孔膜材料.對熱致相分離成膜過程中聚合物-溶劑體系的相圖測定，不同厚度的多孔膜形貌研究，不同x （聚合物-溶劑相互作用參數）體系所制備的多孔膜形貌等需深人研究
  13. In theoretical computation formula the mass absorption coefficient is an important parameter to affect computation precision of sediment concentration

    質量吸收系數是決定理論計算公式計算精度的一個重要參數。
  14. We make a theoretical analysis of the experimental results and draw some conclusions as follows : the saturated temperature r290 - oil mixture is higher than that of pure r290 at a same pressure. the temperature difference, which is called superheat temperature of refrigerant - oil mixtures, increases as the oil concentration and the vapor quality are increased at a certain saturated pressure and pressure has negligible effect on the superheat temperature of the mixture. ( oil concentration is 0. 43 ? - 5. 28 ? )

    並根據實驗結果進行理論計算，得出以下結論：天然製冷劑r290含油混合物的飽和溫度高於相同壓力下純工質的飽和溫度，這個溫度差，也就是本文中提到的所謂製冷劑含油混合物的過熱溫度隨混合物質量含氣率、含油濃度的增加而增加，而飽和壓力對過熱溫度的影響不大（含油率0 . 43 ? - 5 . 28 ? ） 。
  15. A theoretical model for purification of waste gas of low concentration in trickling biofilter was established with simplifying, the polyhole filter in the trickling biofilter to a parallel plat plates passage covered with biofilm

    摘要將生物膜滴濾塔內的多孔填料簡化?壁面覆蓋有生物膜的平行平板通道，建立了一個凈化低濃度有機廢氣的理論模型。
  16. Shafts and axles, calculation of load capacity - part 2 : theoretical stress concentration factors and fatigue notch factors

    軸類.負載能力的計算.第2部分:理論應力集中因素和疲
  17. The vertical mixing law of the linear source in the natural river has been studied in the second step. at first the concentration equation of the linear source at different depth has derived. by the theoretical analysis, the relationship between the distance of the vertical homogeneous mixing and the part depth of homogeneous mixing, and the equation calculated distance of whole depth homogeneous mixing for the linear source have been presented

    通過理論推導，得出任意位置上瞬時線源濃度場的解析解表達式；推導得到表面不同深度線源排放時垂向部分均勻混合水深隨縱向距離變化規律的函數關系，並建立了相應變化規律的諾莫圖；導出了表面不同深度線源在全水深均勻混合時的縱向距離的計算公式，應用長江口南通河段實測資料驗證，得到一致結果。
  18. In this paper theoretical and experimental studies are carried out on cross correlation techniques using electrical capacitance sensors applied to non - intrusive restrictive velocity and mass flow rate measurement in a cyclone separator. the mass flow rate is determined from two parameters, namely the solids velocity and the volumetric concentration

    本文同時將電容層成象和相關技術結合，採用雙層電容傳感器測量了旋風分離器料腿中固體顆粒的斷面濃度分佈，同時得到了固體顆粒沿軸向和周向的二維速度。
  19. 3. algebraically explicit analytical solutions of two - buoyancy natural convection in porous media applying the approach of separating variables with addition, the thesis derives three sets of simple and clear algebraically explicit analytical equations describing the natural convection in porous media with both temperature and concentration gradients. besides the theoretical meaning, they are more valuable for be the benchmark solutions to check and improve the computational fluid dynamics and computational heat and mass transfer

    三、多孔介質中溫度與濃度梯度耦合自然對流基本方程的代數顯式解析解本論文對王補宣院士等給出的反映多孔介質中溫度與濃度耦合自然對流的五元非線性聯立偏微分方程，利用加法分離變量法，導出了三套比較簡明的代數顯式解析解。
  20. The influence of packing height, ratio of water to entrainer and acetic acid initial concentration to separation effect of azeotropic distillation was studied in detail. simulation calculations of general distillation and azeotropic distillation were carried out. the influence of reflux ratio, theoretical plate, feed position, feed temperature and feed concentration to distillation process were discussed

    （ 3 ）與普通精餾比較，分離要求相同時，共沸精餾時所需要的理論板數要低於普通精餾所需要的理論板數，迴流比減小，可降低設備投資70萬元，塔釜加熱量減少36 % 。
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