disperse particle 中文意思是什麼
disperse particle
解釋
分散粒子-
The disperse degree of the ceramic can greatly affect uniformity of the composite, which limit the poling voltage and affect the piezoelectricity. in this paper, the relationships among constitutes, microstructures, dielectric and piezoelectric properties were calculated by employing the banno unit cell mode ; pzt ceramic were synthesized by the hydrothermal method and the appropriate solution was selected according the adsorption of pvdf on the ceramic particle surface ; then, relationships between the disperse degree and the fabrication process were studied. base on these, the pzt / pvdf composites intermingled some pan were prepared and the microstructures were investigated
論文首先利用bannounitcell模型，計算了pzt pvdf壓電復合材料的組成、結構、與其壓電和介電等性能之間的關系；針對壓電復合材料存在的均勻分散性差的缺點，選用水熱法制備的粒度均勻的pzt陶瓷粉末，並採用溶液混和法與聚合物pvdf進行分散復合，重點研究了不同工藝條件下陶瓷的均勻分散性及其與材料微觀結構之間的關系。 -
Piv measures vector fields of continuous phase ( current field ) by measuring tracking particle which traces current field. ptv measures disperse phase ( bubble ) velocity, this technique realizes simultaneity measurement of two phases
Piv演算法通過示蹤粒子測量連續相（水流流場）的矢量場， ptv演算法對分散相（氣相）進行量測，實現了兩相的同時測量。 -
The preparation and application of super disperse lubricants i n the plastic mother particle
在塑料母粒加工中的應用 -
But, pso convergence ' s speed become slow in latter iterative phase, and pso is easy to fall into local optimization. at present, some scholars improve base pso mostly using 3 methods : disperse algorithm, increase convergence speed, enhance particle ' kinds. in the paper, i put forward 2 methods aiming at local best resutl but not whole best result. i modify base pso using the last method. some scholars put forward times initializations, so i select best result after circulating some times to be a parameter of formula. first, put particle into some small region, and ensure every region having one paticle at least. second, every region ' s particle has probability transfer other regions. although increase running time, enhance particle ' kinds, decrese the probability of convergence far from whole best result. nerms ( network educational resource management system ) is one of the research projects in the science and technology development planning of jilin province. the aim of nerms is to organize and manage various twelve kinds of network educational resources effectively so that people can share and gain them easily and efficiently, so as to quicken the development of network education
但粒子群演算法仍存在如下不足:首先在多峰的情況下，粒子群有可能錯過全局最優解，遠離最優解的空間，最終得到局部最優解;其次在演算法收斂的情況下，由於所有的粒子都向最優解的方向群游，所有的粒子趨向同一，失去了粒子間解的多樣性，使得後期的收斂速度明顯變慢，同時演算法收斂到一定精度時，演算法無法繼續優化，本文對原始粒子群演算法提出了二點改進方案: 1 .演算法迭代到一定代數后，把此時找到的全局最優解當作速度更新公式的另一參數（本文稱之為階段最優解）再進行迭代; 2 .每次迭代過程中除最優解以外的每個粒子都有一定概率「變異」到一個步長以外的區域，其中「變異」的粒子在每一維上都隨機生成一個步長。 -
The results indicated that disperse of nano - particle cluster was key factor to use them as lubricating oil additives. only with evenly - distributed cluster can the function of debasing wear and reducing friction be achieved
結果表明， zno納米粒子作為潤滑油添加劑的關鍵是納米微粒團簇的分散，只有納米微粒分散均勻時，才能起到耐磨減摩作用。
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