
[建] 粒度分布
Food powders's particle size distribution fractal dimension could well express the food powders' particle size distribution.
食品粉體顆粒粒度分布分形維能很好的表征顆粒群粒度分布。
So, when the finished particle size distribution, residual moisture content, bulk density and particle shape must conform to precise standards.
因此,當成品的顆粒大小分布、殘留水份含量、堆積密度和顆粒形狀必須符合精确的标準時。
The particle size distribution of coal has self similarity during the grinding process and can be fit by the fractal equation of particle size distribution.
在煤的粉碎過程中其粒度分布具有自相似特征,可以用粒度分布的分形模型來拟合煤粉碎過程中的粒度分布特征。
The attenuation spectrum of ultrasonic waves through the slurry may provide the information about particle size distribution.
利用超聲衰減譜的測量,可以獲得泥沙中顆粒粒度分布信息。
High whiteness, appropriate particle size and narrow particle size distribution of the PCC will contribute to improve the quality of paper in a positive way.
PCC較高的白度、 適宜的微觀粒徑、相對較窄的粒度分布特性,對提高紙張質量有積極的意義。
This investigation of the mechanism of premixing alum-rosin size for neutral-alkaline paper****** process focused on the mixture solution charge and particle size distribution.
中堿性造紙過程中松香明礬預混和過程的研究主要集中在混和液的電荷及粒度分布。
Secondly, the inversion matrix equation of the particle size distribution is obtained from the discrete characteristics of the particle distribution in both mathematical theories and experiments.
其次,根據微粒數分布離散性的特征,建立了微粒粒度分布函數的反演矩陣及其實驗方法。
The hydrodynamics of particle agglomeration flow was numerically simulated at the different inlet gas velocity, initial particle size distribution and type of agglomeration mechanisms in the absorber.
對不同入口氣體速度、初始顆粒尺寸分布和不同顆粒團聚形成機理下收集器内顆粒聚團流動的流體動力特性進行數值模拟。
Powders' particle size distribution fractal dimension could denote size distribution well.
粉體顆粒粒度分布分形維能很好的表征顆粒群粒度分布。
A detailed description of the particle size distribution of pulverized dust and flue dust measured with gravitational sedimentation method on SA-CP2-20 particle size analyser is given.
本文介紹了在SA-CP2-20粒度分析儀上用重力沉降法測量煙道粉塵和機械破碎粉塵的粒度分布。
The particle size and distribution were determined by transmission electron microscopy and laser particle size distribution analyzer, ultraviolet-visible absorption curve was also characterized.
通過透射電鏡、激光粒度分布儀等測定了納米顆粒的粒徑和分布情況,并對納米金溶膠的紫外可見吸收曲線進行了研究。
A new on-line method to determine the particle size distribution using light ex-tinction is proposed in this paper.
提出了用光透消光法(或稱全散射法)對顆粒尺寸及其分布進行實時線上測量的方法。
A laser-scattering method for the determination of particle size distribution of pharmaceutical suspension intended for intravenous use is proposed.
本文報告一種激光散射法測定靜脈注射混懸劑的顆粒大小分布情況。
The most part of powder is spherical with a broad particle size distribution.
目前得到的粉末幾乎都為球形,但顆粒粒徑分布範圍比較寬。
Leveberg-Marquart(LM) algorithm is presented as an optimization technique to deal with the inversion problem and determine the particle size distribution(PSD) in light extinction method.
基于限定模式反演算法,由LM優化算法對消光法測量衰減光譜進行反演處理,獲得顆粒粒徑和分布。
There is much inconvenience in measuring particle size distribution by experiments at present, because of droplets movement complexity in spray drying.
由于噴霧幹燥中霧滴的運動較複雜,所以目前多是通過實驗測量來确定霧滴粒度分布,有很多不便因素。
Based on this mechanism, a new mathematical model characterizing the material removal rate in CMP process was developed by using micro-contact mechanics and particle size distribution theory.
基于這種機理,應用微觀接觸力學和磨粒粒度分布理論建立了一種新的表征CMP過程材料去除速率的數學模型。
The influences of these factors and the method for controlling particle size distribution were presented for the reaction precipitation process.
在此基礎上,提出了反應沉澱法制備亞微米粒子過程中顆粒粒度及粒度分布的控制方法。
The grindability of coal is an important parameter in pulverized coal utilization, and the HGI(Hardgrove Grindability Index) is relevant to the coal pulverization and the particle size distribution.
可磨性是煤加工利用過程中的一個重要指标,可磨性指數與煤的破碎機理、煤粒破碎後的粒度分布均有關系。
The quantitative symbolization of the characteristics of subalpine coniferous forest soil by the fractal dimension of soil particle size distribution was discussed in the paper.
本研究探讨了利用土壤顆粒粒徑分布的分形維數來定量表征川西亞高山針葉林土壤的特征。
The effects of the solid particle size distribution and the binder curing ratio were investigated experimentally.
實驗研究了固體粒子尺寸分布和粘合劑固化比的影響。
The HGI is of some relativity to the coal pulverization and the particle size distribution.
可磨性指數和煤的破碎機理、煤粒破碎後的粒度分布均有關系。
The change in particle size distribution of fly ash in grinding process and its influence on the activity of fly ash are presented in this paper.
研究了粉煤灰在機械磨細過程中粒度分布的變化規律,分析了磨細灰的粒度分布特征對其活性的影響。
The condensed phase particle size distribution affects the combustion chamber and nozzle efficiency of solid rocket motors to some extent.
凝聚相微粒尺寸分布對固體火箭發動機燃燒室效率和噴管效率有影響。
The particle size distribution could be adjusted on demands.
産品地粒度分布可以根據要求調整。
In addition, the apparatus may be employed for gauging the solid or liquid particle size distribution in the liquid flow with certain modification of the apparatus.
此項儀器不但可以用來測定氣流中的液體霧滴,亦可用于測定氣流中的固體微粒,儀器稍加改裝,還可測定液流中的固态或液态質點的尺寸分布。
Transmission fluctuation spectrometry (TFS) is a new method for particle size measurements, in which the particle size distribution and particle concentration can be measured simultaneously.
消光起伏法是一種新的顆粒測量方法,可用來同時測量兩相流中顆粒的粒徑分布和體積濃度。
First, a particle size distribution (PSD) analysis together with a detailed analysis of morphological properties of the excipient particles were performed.
首先,結合輔料顆粒形态特性的細微分析,對顆粒粒徑分布(PSD)進行分析。
Effects of ball-milling treatment on particle size distribution, specific surface area, calcium extraction rate and soluble protein content of sliver carp bone powder were stu***d.
以鲢魚骨為原料,研究球磨處理對魚骨粉的粒度分布、比表面積、鈣提取率和可溶性蛋白含量的影響。
顆粒尺寸分布(Particle Size Distribution,PSD)是指某一物質樣品中不同尺寸顆粒的占比情況,通常以統計圖表或數學函數形式呈現。該參數用于描述顆粒體系的均勻性、分散度及物理化學特性,是材料科學、環境監測、制藥工業等領域的核心分析指标之一。
顆粒尺寸分布通過測量顆粒直徑、體積或質量分布來表征物質形态特征。常見測量技術包括:
典型分析參數包括:
數據呈現方式主要有直方圖、累積分布曲線和Rosin-Rammler數學模型,其中累積曲線可直觀顯示特定粒徑以下的顆粒占比(英國藥典2023版通則<429>)。
權威機構研究表明,精确控制顆粒尺寸分布可使锂電池能量密度提升15-20%(美國能源部2021年儲能報告),印證其在現代工業中的關鍵作用。
Particle size distribution(顆粒分布)是描述物質中不同尺寸顆粒占比情況的術語,常見于材料科學、化學、環境科學等領域。以下是詳細解析:
術語構成與定義
綜合而言,該術語描述的是樣本中不同尺寸顆粒的數量比例或累積頻率,例如沙土中砂礫、粉砂和黏土顆粒的占比()。
應用領域
測量方法
常用激光衍射、篩分法或電子顯微鏡分析,結果常以累積分布曲線或直方圖呈現()。
若需具體行業标準或公式參數,可參考國際标準如ISO 13320(激光衍射法)或ASTM B822(篩分法)。更多完整信息可查閱材料科學相關文獻或實驗手冊。
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