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eigenvectors of particle number operator 粒子数算符的本征矢
In this paper, a novel Quasi Particle Swarm Optimization(Quasi-PSO)based on Linear Decreasing Weight Particle Swarm Optimization(LDW-PSO) is presented. 该文在线性递减权重粒子群算法的基础上提出了一种新的准粒子群优化算法。
With the DPF, the particle number emission is reduced 99%, as well as the mass emission is reduced 90% more. 通过同型号的车对比试验，安装 DPF后，颗粒物数目排放降低率可达 99%25，质量排放降低率在 90%25以上。
Water contents of stratiform cloud vary greatly,and have close positive relationship with particle number concentration. 云中含水量在水平方向上的变化大,且与粒子数浓度存在正相关。
The equation of state for an ideal Bose gas is derived by using the expressions of the pressure and particle number of an ideal Bose gas. 摘要利用理想玻色气体的压强和粒子数密度表达式，导出了理想玻色气体的态方程。
The defects number also was checked and it also obeys the dynamical scaling with decreasing nondimensional time t, but increasing particle number. 同时统计了体系中缺陷点的数目，得到了缺陷数目随时间t减少的标度关系。
The particle number increased with surfactant and initiator concentration though the data are insufficient for evaluating the nature of these relationships. 粒子数随表面活性剂和引发剂的浓度而增加，虽然数据还不足以评价这些关系的本质。
Importance resampling strategy is adopted to improve the standard PF algorithm.The particle number is reduced through the setting of a valid sample scale. 摘要采用重要性重采样技术改进了标准粒子滤波算法，通过设定有效采样尺度来减少权值较小的粒子数目，在一定程度上克服了退化现象。
In this paper,the properties of ASE gain flattened of EDFA are studied based on energy level and particle number shifting of EDFA both theoretically and experimentally. 从理论和实验上研究了长周期光纤光栅用于掺铒光纤放大器自发发射谱增益平坦展宽的特性、自增益谱的荧光峰和可用带宽。
Provides a class that fully-encapsulates rational number operations. 提供的这个类完全封装了理性数字运算。
The results show that the particle number concentration increases along height of scrubbing chamber, but the particle number concentration distribution in the cistern becomes wave-shaped. 研究表明：沿洗涤室高度方向颗粒数密度分布总体呈下降趋势，在洗涤室液池内颗粒数密度分布存在波动形式；
The impact of sampling time on concentration of collected bacterium,fungus particles and mid-value diameter of particle number are studied by ANDERSEN bioparticle sampler in lab. 在室内用ANDERSEN生物粒子采样器进行了不同采样时间对采集空气细菌和真菌粒子浓度、粒数中值直径效果的研究。
The atmospheric fungous particle numbers in six functional districts were measured by the method of natural sedimentation in Taiyuan City. 用自然沉降法对太原市六个功能区大气真菌粒子的数量进行了测定，结果表明：太原市大气真菌粒子数量季节变化十分明显，夏季高冬季低；
This paper pass to analysis of FFT algorithmic and the complex number operation &derivation of instantaneous power for the three phases electric power system. 通过对FFT算法的分析及三相电力系统瞬时功率的复数运算推导,简要说明如何利用FFT算法分解出的电力系统的电流电压量进行两相式功率的测量。
All experiments included size-selective measurement of airborne concentrations of particle numbers and endotoxin mass using an electrical low-pressure impactor. 所有实验都使用电子低压冲击器来测量特定粒径的悬浮微粒粒数浓度及内毒素质量浓度。
The objective function is equivalent dose at the specific position in the back of the material.Furthermore, the particle numbers is also selected as object function. 优化目标函数主要选用一定厚度下核辐射透过材料后的总剂量当量，也选用过一定厚度下核辐射透过材料后的粒子数目作为优化的目标函数。
He thumbed through the directory to look for her number. 他翻阅电话号码簿找寻她的号码。
Let me note down your address and telephone number. 让我记下你的地址和电话号码。
Aerosol particle number concentration 粒子数浓度
He picked a winning number on the first draw. 他第一次便抽到一个中奖号码。