粒子

Equipment ability: imported portable testing equipments, 1027-radon detector, CO infrared analyzer, cp 3800, TSP-large flow PM10 sampler, UV8500 double beam UV-visible spectrophotometer, air sampling device, laser dust particle counter, hot-anemometer, air particle counter, Stone and other radioactive detector.

设备能力：测氡仪、CO红外分析仪、气相色谱仪、TSP-PM10大流量采样器、双光束紫外可见分光光度计、大气采样器、浮游微生物采样器、激光尘埃粒子计数器、热球风速计、空气粒子计数器、石材放射性检测仪等。

Based on the in-depth analysis and discussion the technological process and the basic principles of the alumina production process in Bayer, three mathematical models of Bayer material balance computation were proposed for practical engineering applications in different production technology, complex engineering computing problems were first converted into non-linear multi-objective optimization problems, and the above optimization algorithms were applied to solve them and achieved excellent results.

文中讨论了各种被引入的优化算法与粒子群优化算法的融合方法与步骤问题，并给出了混合粒子群协同优化算法的收敛性定理证明。

It is shown that the sphere-like body-centered cubic Eu2O3 and monoclinic Sm2O3 nanoparticles obtained with sodium dodecylsulfate as surfactant and the rod-like orthorhombic Eu2O3 and body-centered cubic Sm2O3 nanoparticles fabricated with polyvinylpyrrolidone as surfactant possessed a BET surface area of 44~49 and 34~37m^2/g, respectively.

结果表明，以十二烷基硫酸钠作表面活性剂所得产物为类球状体心立方晶相Eu2O3和单斜晶相Sm2O3纳米粒子，比表面积为44~49 平方公尺/g；而以聚乙烯吡咯烷酮作表面活性剂所得产物则是棒状正交晶相Eu2O3和体心立方晶相Sm2O3纳米粒子，比表面积为3437 平方公尺/g。

This article introduces some practical problems met in producing high-purity cathode copper , analyzes the reason of cathode copper surface particle formation by particle classification, and puts forward treatment measures and preventive measures to be taken.

介绍了高纯阴极铜生产中易遇到的实际问题，并把电铜表面粒子分成几种类型分析了其粒子形成的原因，提出了处理及应采取的预防措施。

With the aid of scanning electron microscope, the experiment was made about how the filter of deposition chamber influences the content of impurity in film and the result of this test showed that the structure, number of filter spacer strongly influences the impurity content of film.

在扫描电镜下观察了沉积腔的过滤对薄膜杂质含量的影响，观察结果表明：过滤挡块的数量、结构对过滤宏观粒子的效率具有很大的关系，当弧形腔中复合挡块数量4块时，在扫描电镜已很难发现有宏观粒子。

the effect of inertia weight on particle swarm optimization is studied,on basis of which adopts four kinds of strategies of inertia weight to regulate the speed of a new quantum delta potential well based particle swarm optimization.a faster and more stabile algorithm,found by comparing the performances of four equations regulated the inertia weight,solves 0/1 knapsack problem.the result of experiment shows that the modified algorithm improves the precision of optimal solution and has a faster speed and a higher efficiency in convergence.in a word,choosing a parameter of inertia weight suitably can improve the performance of new qdpso.

摘 要：在研究惯性权重对基本pso算法影响的基础上，根据惯性权重对粒子群算法影响的特点，采用4种惯性权重策略对一种新的具有量子行为的粒子群算法的速度进行调节，比较每种算法的性能，从中找到一种新的性能更好的改进算法，将其用于求解0-1背包问题。实验结果表明较好地选择惯性权重参数对算法的性能有很大提高，该改进算法在求解0-1背包问题中具有高效性，提高了最优解的精度，同时具有较快的收敛速度。

A new parameter is introduced here to measure the locality of particle distribution. The relationship between local coefficient and particle density is simulated with random updating rule and critical density is measured, which is in conformity with the critical density of the system.

我们引入了一个新的参量局域化系数来度量系统粒子分布的局域性，数值模拟了在随机动力学规则下的局域化系数随粒子密度的变化关系，得到临界密度，结果与解析得到的系统临界密度相符。

Measurements of mean residence time and penetration of submicrometer aerosols in flows in tubes were made within the range of Reynolds numbers from 0.07 to 0.26 by widening of aerosols pulses analysis of monodisperse polystyrene spheres solid particles injected in clean nitrogen flow through a diffusion battery of capillary tubes.

在Reynolds数0.07～0.26范围内，采用亚微米聚苯乙烯球形硬气溶胶粒子脉冲，测定了气溶胶粒子在毛细管扩散池组中的谱带展宽，由此获得了气溶胶在毛细管中的平均保留时间和穿透率。

Under the conditions of single—beam and three—beam illuminating measuring point separately and other factors unchanging, the size distribution of standard particle board is measured, which indicates that the result of the measurement of particle size distribution is not affected by the simultaneous measurement of velocity.

分别在单光束和三光束照射测量点，其它条件不变的情况下，对标准粒子板的尺寸分布进行了测量，实验结果表明，粒子尺寸分布的测量结果不受同时测速的影响。

The numerical results show that, after several microseconds, the charging process of dust particle reaches equilibrium.

结果显示，经过几个微妙，尘埃粒子的充电过程就能达到稳定；特别的是尘埃粒子在鞘层中的运动过程是衰减振荡的，并最终悬浮在其平衡位置处。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。