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- particle number density [化] 平均密度
- With the cell cycle model, the cell cycle related variables, such as fraction of budding cells (FBC) and cell number density, can be simulated. 通过细胞循环模型,求得与细胞循环过程相关的变量,如细胞带芽分率和细胞数目浓度。
- 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。
- The number density is obtained by transforming the aerosol quality density which is gained directly from Andersen stage sampler. 本文采用安德森分级采样直接获得的大气气溶胶质量密度换算成数密度。
- 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。
- It indicated that the simulation model was able to well predict both electron number density and ion current density of plume of SPT. 研究表明,所建立的仿真模型能够较好地预测SPT羽流电子数密度和离子电流密度等参数。
- 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。
- When the total baryon number density is about 6 , neutrons and protons almost have the equal proportion, which leads to the symmetric nuclear matter. 当总粒子数密度为 左右时中子数密度与质子数密度很接近,使中子星物质几乎成为对称核物质。
- 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。
- The distribution of the void number density has been numerically investigated under the condition of the same ratio of inner and outer diameters for all voids. 假设所有孔洞的内外半径之比相同,用数值方法定性分析了材料在层裂损伤过程中孔洞数密度分布的变化。
- This paper introduced the inversion model of nolinear heatflow through the relation betweentheareal track number density of apatite fission track versus time and temperature. 本文应用磷灰石裂变径迹的面积径迹数随时间、温度变化的规律,建立非线性热流的反演模型。
- 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。
- The model of cracked media with crack number density of spatial distribution is presented according to the theory of spectral factorization in stochastic process and Hudson′s model of cracked media. 利用随机过程的谱展开理论以及hudson的裂纹介质模型,构造一种裂纹数密度具有空间统计分布的随机介质模型,给出了详细的理论推导过程。
- 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 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;
- In high energy neutrino-emulsion collisions, the normalized distribution of two-particle relative pseudorapidity and the correlation between the mean maximum number density of shower particles and multiplicity are investigated. 摘要论述了高能中微子与核乳胶碰撞中,归一化的两粒子相对鹰快度分布,和平均最大簇射粒子数密度与多重数的关联。
- Influences of initial damage on development of spalling damage have been indicated by analyzing the distribution of void number density, the cumulative percentage of void volume and the volume fraction of the different-seize voids. 通过分析孔洞数密度分布、孔洞体积累积百分比、不同大小孔洞所占体积份额的计算结果,指出初始损伤对损伤演化有直接影响。