顆粒濃度 的英文怎麼說

中文拼音 [kēlìnóngdù]
顆粒濃度 英文
particle concentration
  • 粒 : Ⅰ名 （小圓珠形或小碎塊形物） small particles; grain; granule; pellet Ⅱ量詞（用於粒狀物）
  • 濃 : 形容詞1. （液體或氣體中所含的某種成分多; 稠密） dense; thick; concentrated 2. （程度深） （of degree or extent） great; strong
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 顆粒 : 1 （小而圓的東西） pellet; bead; dust; anything small and roundish （as a bean pearl etc ）2 （一...
  • 濃度 : potency; thickness; concentration; consistence; strength; consistency; density
  1. The influence of inflow velocity, the baffle body height and the clapboard position on the flow velocity, flow equilibrium between the two sides of the clapboard, particle distribution, rich / lean concentration ratio and flow resistance characteristic are studied numerically

    文章研究了來流速度，撞擊塊高度、隔板位置等因素對氣相速度場、隔板兩側配風均勻性、顆粒濃度、濃淡分離比和燃燒器內阻力特性的影響。
  2. Experiments in pneumatic conveying show that there exists a maximum particle concentration.

    氣力輸送實驗表明，這里存著一個最大的顆粒濃度。
  3. The wavelet multi - analysis is adopted to further understand the microstructure of solids holdup fluctuation, the vivid fingermark images show that it is a fractal and dissipative structure. the low and frequency signals reflect the dilute phase fluctuation behavior and dense phase ( cluster ) fluctuation behavior, respectively. to deep understand the multi - scales characteristic of gas - solids circulating fluidization, the wp decompose methods for obtaining the eigenvalue of gas - solid fluidized bed has been developed. the results show that eigenvalues of different scales are effective for identification of non - uniform and dynamic structure of gas - solid fluidized bed

    小波多分辨分析法得到指紋圖形象地揭示了顆粒濃度脈動的自相似、分叉等具有混沌特徵的微觀結構；小波分解后信號中的低頻和高頻成分分別代表了稀相和密相的脈動行為，小波包分解提取能量特徵值的方法能夠揭示氣固的多尺度特性，不同尺度上的能量特徵值四川大學碩十論文反映了氣固循環流化系統中存在的非均勻動態時空結構。
  4. On the basis of theory analysis, the average transmitted light intensity ( correspond to dc value ) was determined as characteristic parameter of raw water using photoelectric method for monitoring the fluctuation of transmitted light and photometric dispersion analyzer ( pda ). the dc value was closely related to both particle concentration and surface area of sand clay simultaneously. the experimental results shows that there is an exponential function relation between dc and surface area of sand clay in unit volume water ( sp ) : dc = asbp in which a and b are empirical coefficients. then the formula of macromolecule flocculant dosage is found to be d = f ( dc ) = e ( dc ) f in which e and / are empirical coefficients and the average correlation coefficient equal to 0. 981. so the model of automatical control system of water treatment plant was established using the formula

    應用透光率脈動檢測技術和光散射顆粒粒度分析儀（ pda ） ，通過理論分析，將pda的輸出信號之一? ?平均透光強度（對應于dc值）作為原水的特性表徵參數， dc值可以同時反映顆粒濃度和比表面積因素的影響，試驗結果證明， dc值與單位體積水中泥沙顆粒總表面積s _ p之間具有很好的冪函數關系： dc = cs _ p ~ d ，式中c 、 d為經驗系數，進而得到了以dc值為參數的高分子絮凝劑投藥量公式： d = f （ dc ） = e （ dc ） ~ f ，式中： e 、 f為經驗系數，平均相關系數達0 . 981 ，利用所建立的公式，建立了前饋? ?后饋聯合控制的在線自動投藥模型。
  5. The saffman force does not affect the axial velocity of the flow, while it change the concentration of the particle. the gas - particle two - phase flows in the present of temperature were also numerical simulation

    討論了絕熱、有溫差和添加熱泳力三種情況下的兩相流場，分析了溫度梯度、湍動能、軸向速度和顆粒濃度的變化。
  6. 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。
  7. The particles aggregation was simulated using particle - cluster and cluster - cluster aggregation model. several type of floes was reached and its morphological characteristics was analyzed the fractal dimension, density and porosity of floes was studied by changing sticking probabilities, sticking position, particle number, particle concentration, difrusion coefficient and motion trajectory. the parameters by which special floes growth were determined. in the study of morphology, floes of yellow river ' s loess particles was observed by tv - microscope. its morphological characteristics were obtained by image analysis. the effect of fractal dimensions by stirring time strring speed, macromolecule flocculant dosage, flocculant concentration and particle concentration was studie. its rule of change was obtained. on the basis of other studies, the flocculation kinetics and floes structure was studied

    本文應用計算機模擬技術，在二維空間內採用單體凝聚和集團? ?集團凝聚兩種模型對顆粒凝聚過程進行了模擬，得到了多種形態的絮體，並對絮體進行了形態分析，通過改變粘附概率、粘附位置、顆粒數量、顆粒濃度、擴散系數和運動路徑等模擬參數，我們考察了絮體分形維數、密度和孔隙率隨模擬條件變化的影響規律，得到了形成特定形態絮體的控制參數。
  8. The particle collision frequencies and granular temperature as a function of particle concentration were obtained

    得到了顆粒碰撞頻率和顆粒溫度隨顆粒濃度的變化規律。
  9. The radial distribution function was introduced in order to take into account the effect of the uneven local particle concentration on the particle collision probability

    推導了高顆粒濃度氣固兩相流顆粒間碰撞概率的計算公式，引入徑向分佈函數來考慮局部顆粒濃度不均勻性對顆粒碰撞概率的影響。
  10. In this paper, the two - phase flow behaviors of gas - solid circulating fluidized bed have been first studied by analysing experimental data. then, based on fractal theory wavelet package analysis ( wpa ) de - noising method was used to denoise solids concentration and pressure fluctuation signals. the solids concentration signals have also been investigated by wavelet multi - resolution analysis and wavelet package decompose, contributed to disclose the non - uniform flow structures of gas - solids phase

    然後將基於分形理論的小波包消噪方法用於顆粒濃度和壓力波動去噪，並對氣固流化床中的顆粒濃度信號進行了小波多分辨分析和小波包多尺度分解，從新角度揭示了氣固流態化系統的非均勻氣固兩相流動結構。
  11. However, the effect of high particle concentration on particle collision should be taken into account in the dense gas - solid two - phase flow. at the same time, gas turbulence should be taken into account in the simulation of gas flow in dense gas - solid two - phase flow

    然而，在高顆粒濃度下顆粒碰撞對的確定需要考慮高顆粒濃度存在的影響，同時在高顆粒濃度流化床氣固兩相流動中，需要考慮氣體粘性的作用。
  12. Based on a large amount of experimental data, nonlinear analysis, such as complexity theory, and approximate entropy ( apen ) which is adopted systematically in the fluidization research the first time, are implemented in the time series analysis of pressure fluctuation and particle concentration in gas - solid fluidized beds, and the nonlinear characteristics of fluidized beds are discussed comprehensively

    本文在大量實驗數據基礎上，將非線性方法，包括復雜性理論，以及首次被系統引入流態化研究的近似熵，應用到氣固流化床壓力及顆粒濃度脈動時間序列分析中，較為系統地探討了流化床的非線性特徵。
  13. The output signal of pda is affected by the suspended particle concentration, particle size, and the type and dosage of coagulant as well. by analysing the fi curve, it is found that the characteristic parameters of fi curve closely relate to aggregates size and turbidity removal the aggregates size and turbidity removal achieve the maximum when the amplitude of fluctuation is the maximum. the mean diameter and fractal dimension increase with agitation time, and finally reach a steady - state

    通過對混凝過程的在線監測和對pda輸出信號fi曲線的數學解析表明： fi曲線綜合反映了懸濁液中膠體顆粒濃度和顆粒粒徑，混凝劑種類和投量很大程度上影響了fi曲線形狀， fi曲線的特徵值與絮凝體平均粒徑和濁度去除率之間具有良好的相關關系，在振幅最大處，濁度去除率達到最高，絮體平均粒徑最大，該條件下對應的投藥量為最佳投藥量。
  14. In the study, fft and digital filtering calculations are employed to assure measurement precision. experimental studies from industrial systems demonstrated that, fluctuation and correlation methods can be applied on non - spherical opaque particles, the precision are are within 10 % and 8 % respectively

    多處工業現場和自製兩相流試驗系統的測量結果表明，測量顆粒濃度和粒徑的精度在10以內，速度測量精度在8以內，證明這種技術可以用於非球形、不透明顆粒的測量。
  15. The solids holdup is lower in the center than in the wall region at the radial positions, and the solids holdup is higher in the lower section than in the upper section of the riser

    在徑向分佈上，顆粒濃度呈現中心稀，邊壁濃的狀態。在軸向上，顆粒濃度呈現上稀下濃的分佈。
  16. A hybrid method for prediction of solids holdup in gas - solid circulating fluidized bed is proposed based on chaos phase reconstruction and wavelet package as well as neural networks. experimental results show that the model provides good predictions and has promising applications

    氣一固循環流化床的顆粒濃度時間序列預測結果表明，小波、混沌和人工神經網路結合預測模型可有效地用於氣固循環流化床局部顆粒濃度波動時間序列信號的短期預測。
  17. Measurement and analyses of particle concentration distribution in pdc type of cyclone tube used in fcc unit

    型旋風管內顆粒濃度場的測試及分析
  18. The denoising results about solids holdup and pressure fluctuation signals of gas - solids cfb riser indicate that wpa denoising method based on fractal theory can efficiently differentiate the noises from the solids holdup signals, and the denoised effect is much better than that by filter method based on the fourier transform

    氣固循環流化床提升管的顆粒濃度和壓力波動信號的去噪結果表明，基於分形理論的小波包去噪方法能有效地區分真實信號和噪聲信號，去噪效果優于傳統的傅立葉變換的濾波方法。
  19. A formula is proposed for calculating the sand content of different size in the case of matching particle size of sand, thus obtaining the correlation between ultrasonic attenuation and density of solid particles in the pulp, as well as particle size

    提出了在礦砂粒徑尺寸級配情況下的不同粒徑時的礦砂含量的公式，並由此得到了超聲波衰減與礦漿中固體顆粒濃度、粒度之間的關系。
  20. Fluidization has been assumed as an efficient means of contacting different particles in various fields such as chemical, metallurgical and pharmaceutical industries. however, the hydro - dynamical behavior of gas - solid bed is very complex. in this paper, based on a large amount of experimental data, complexity theory are adopted as a new method to study on the multi - signals especially pressure signal in wide flow region in gas solid fluidized bed which respective diameter are 114mm and 250mm

    本文在氣固流化床中引入復雜性理論作為主要的研究工具，在114mm和250mm床徑氣固流化床中進行了大量的實驗，選用分別屬于a類和b類的粒子作為固體顆粒，在寬流域的范圍內對流化床壓力信號、顆粒濃度信號，尤其是壓力信號進行了研究。
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