粒子

The relationship between the inverse number density of particle of the laser transition levels and the discharge condition such as the discharge current, the He pressure and the temperature of Cd-reservior has been achieved. The discharge condition for obtaining maximum laser output was theoretically achieved.

分析了441.6nm谱线的激发机理及各种粒子的相互作用过程，导出了441.6nm谱线跃迁能级激励的理论模型及其粒子数密度速率方程，得到了粒子反转数密度与放电电流、氦气压强和镉炉温度等放电条件的关系，从理论上，定量得出了获得最大输出功率时的放电条件。

First of all, this study will be multi-walled carbon nanotubes by chemical oxidation process purified so it can be modified to deal with than the purification of purity before the modified 5 wt%, more than 1.89 times the surface area to increase the surface potential decrease of about 10 ~ 20 mV and the surface functional base (-COOH and-OH) to increase 1.45 times, and then the control technology of electroless preparation parameters include: analysis of plating time, plating analysis of temperature, metal ions in solution than the (Fe2+/ Ni2+), bath pH and the added value of dispersion Agent and other research towards Fe-Ni particles to increase the iron content and Fe-Ni particles spread in the MWCNT upper fixed targets,the results found that when the parameters for the preparation of 50 ℃, pH10, do not add dispersant, metal ions than the solution (Fe2 +/ Ni2 +) 7, the highest iron content can be Fe = 40.55 at%(flat iron content 111.17 mg / g) of nanocomposites Fe-Ni/CNT, then for a series of the nature of its analysis, the final evaluation Fe-Ni/CNT nanocomposites were processed on the effectiveness of the application of mixed pollutants, the results showed that in 120 minutes at the same time when Adsorption of heavy metal ions lead nitrate 10 ppm, selenium heavy metal ion degradation of 1 ppm and orange azo dye AO7 50 ppm standard of effluents, and after a total Fe-Ni nano-particles to SEM / EDS analysis of more than 50% still remaining.

本研究首先将多壁奈米碳管以化学氧化法做纯化改质处理能使其纯度较纯化改质前提高5 wt％、比表面积提高1.89倍、表面电位下降约10~20 mV以及表面官能基提高1.45倍，再控制无电镀技术之制备参数包括：析镀时间、析镀温度，镀液中金属离子比(Fe2+/Ni2+)、镀液pH值及是否添加分散剂等，研究朝提高Fe-Ni粒子的含铁量与Fe-Ni粒子散布固定在MWCNT上等目标进行，研究结果发现当制备参数为50 ℃、pH10、不添加分散剂、镀液金属离子比(Fe2+/Ni2+)7时，可得到最高铁含量Fe = 40.55 at％(单位铁含量111.17 mg/g)之奈米复合材料Fe-Ni/CNT，接著对其作一系列性质分析，最后评估奈米复合材料Fe-Ni/CNT对共处理混合污染物之应用效益，结果显示其在120分钟时能够同时吸附重金属硝酸铅离子10 ppm、重金属硒酸根离子1 ppm及降解偶氮橘色染料AO7 50 ppm达放流水标准，且共处理后奈米Fe-Ni粒子以SEM/EDS分析仍剩余50 %以上。

A modified Particle Swarm Optimization algorithm is proposed and used to optimize the sidelobe level of plane arrays, in which special techniques as global best perturbation and jumped inertia weight strategy are adopted. The PSO algorithm is also used to select a better combination of optimal parameters for itself.

摘要该文运用一种改进的粒子群优化算法对不等幅激励的矩形平面阵列天线的最大旁瓣电平进行了优化，采用对全局最优粒子微扰和跳变的惯性权重策略，并使用粒子群算法本身对参数组合进行了优化选择。

Radius of TiO2 nano-particles which systhesized in different reaction time were acculated by maximum absorbence wavelength according to Brus equation, which could show variation of size with reaction time, and mechanise were studied.

根据Brus公式，由不同时刻反应液的最大吸收波长，计算得到不同时刻TiO2纳米粒子的半径，直观地反映了粒子的尺寸随时间的变化情况，以此来研究粒子生长的动力学。

If the production of the two particles alters the topology and metric of the space, producing a lengthening wormhole between them as they separate, for instance, then the effects from one to the other may be quite local.

如果两个粒子的生成使空间的拓扑与量度发生了改变的话，例如，若两个粒子分离时在二者之间形成了一个不断伸长的虫洞的话，那么（在这个被重新量度了的空间中看来）这两个粒子之间的作用就有可能是完全局域性的了。

We use SEM to observe fractured morphology of composites, and TEM to observe dispersion and particle size of nanoparticles or composited nanoparticles in matrix. We also investigate dispersion property of composited nanoparticles in polymer matrix with the help of microtone.

采用扫描电镜观察缺口冲击的断裂形貌，通过透射电镜观察纳米粒子和复合纳米粒子的分散情况和粒径的大小；通过超薄切片法研究复合粒子在聚合物基体中的分散性。

Furthermore, the information dissemination of several topologies is analyzed theoretically, and the statistical properties of canonical topologies and varying neighborhood topology are analyzed from graph theory.

针对传统粒子群优化算法中全连接型拓扑和环形拓扑的特点，引入了一种粒子群信息共享方式——多簇结构，进而基于多簇结构提出了动态可变拓扑策略以协调动态概率粒子群优化算法的勘探和开采能力，并从理论上分析了最优信息在各种拓扑中的传播，同时从图论角度分析了几种经典拓扑以及动态可变多簇结构的统计特性。

By systematically analyzing the single particle level and the occupation probability near the Fermi surface,and the rule of nuclear particle number deviations with proton numbers for N =8,20,28,50,82,126 neutron chains within the relativistic mean-field model with BCS theory,we have discussed the stability of the shell structure for the traditional neutron magic in the whole range of nuclear spectrum from neutron line to proton line,and predicted that traditional neutron magic number effect shall possibly disappear only in light neutron-rich nuclei.

在考虑了BCS理论的相对论平均场模型框架内，通过系统研究 N =8，20，28，50，82和126六条同中子素链中每个元素费米面附近的单粒子能级间隔、粒子数占有概率比以及原子核体系的粒子数偏离随质子数的变化规律，讨论了传统中子幻数的壳结构在从中子滴线区到质子滴线区整个核谱上的稳定性，预言只有在轻核的丰中子区域，传统的中子幻数效应才可能消失，并把计算结果和最近的文献报道作了比较。

Based on Particle Swarm Optimization Algorithm for Scheduling Workflow By studying the mechanism of Particle swarm Algorithm and linking grid service workflow scheduling features, according to quality of grid service, IBPSOA is given, which is an alternative path to the integer-binary coding operations, and dynamic service scheduling algorithm.

3基于粒子群算法的工作流优化调度通过研究粒子群算法PSOA的机理结合网格服务工作流调度的特点，依据网格服务质量QoS，提出了基于粒子群的整数-二进制编码业务路径替代、动态服务调度算法IBPSOA。

The paper proposes an algorithm based on the combination of Ant Colony Optimization and Particle Swarm Optimization for path planning.The new algorithm combines the advantages of ACO and PSO effectively and generates the distribution of the initial information for ACO by using the merits of high efficiency and concision of PSO,and then uses the advantages of parallelizability,positive feedback and solution with high accuracy of ACO to get global optimum solution.

提出了一种基于蚁群粒子群算法融合的机器人全局路径规划算法，该方法有效地结合了蚁群算法和粒子群算法的优点，利用粒子群算法的快速简洁等特点得到蚁群算法初始信息素分布；然后利用蚁群算法的并行性、正反馈性、求解精度高等优点，求得全局最优解。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。