solids holdup 中文意思是什麼
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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。 -
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。 -
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。 -
Hydrothermal modification temperature, hydrothermal modification time, concentration of aqueous cacl2 solution and solids holdup of mg ( oh ) 2 particles showed important effect on the morphology, crystalline structure and dispersion properties of the hydrothermal products
研究發現水熱改性溫度、水熱改性時間、改性劑添加量和水熱漿液固含均對水熱產物的形貌和一次粒徑有一定的影響。 -
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。
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