K particle
英 [keɪ ˈpɑːtɪkl]
美 [keɪ ˈpɑːrtɪkl]
【物理学】K 介子，重介子
双语例句
- Hybrid Particle Swarm Optimization employing improved k-means clustering analysis strategy
采用改进的k均值聚类分析策略的粒子群算法 - Particle swarm optimization ( PSO) algorithm is adopted to optimize the center of fuzz K-means ( FKM) with kernel function, which is used to classify the temperature of blast furnace.
提出了一种高炉炉温分类辨识的方法PSO-K-FKM，该方法采用基于核函数改进的模糊K均值聚类，利用粒子群对聚类中心寻优。 - The isothermal flow field in a cyclone combustion chamber is being modeled by a 3-dimensional axis-symmetric RNG k-ε turbulent flow model. A particle image velocimeter ( PIV) was use for measuring the velocity vector distribution in various cross-sections of a cyclone combustion chamber.
采用三维轴对称RNGkε湍流模型模拟了微型燃气轮机旋流燃烧室内的等温流场，用粒子测速仪（PIV）测量了旋流燃烧室内不同截面位置的速度矢量分布。 - The results show that in situ VC P/ steel composite has low pouring temperature ( 1723~ 1773 K) and good cast forming. It is suited to fabricate the in situ composite that demands a large reinforced particle volume fraction.
结果表明，原位VCP增强钢基复合材料具有浇铸温度低（1723～1773K），铸造成型性好的特点，适用于制备体积分数较高的颗粒内生复合材料； - The RNG k-ε turbulence model has been applied to simulate turbulent flows in symmetrical planes and in three dimensions of curved inlet cut-off valves, and its performance is compared to the results measured by a particle image velocimetry ( PIV) in the experiments.
采用了RNGk-ε紊流模型和贴体坐标对截止阀对称面和三维流场进行了模拟，同时用粒子成像流速仪（PIV）对弯型截止阀对称面模型的测试结果和数值模拟结果进行了验证。 - The realizable k-ε model and stochastic particle track model were used for gas-solid flow simulation. The numerical results showed the gas velocity, particle concentration and flow resistance distributions of the gas inlet hood.
采用可实现性kε模型和随机颗粒轨道模型，对其气固两相流动进行了数值计算，得出了气相速度分布、颗粒浓度分布和流动阻力分布特性。 - The data of ionic and carbonaceous species showed a peak value for K ion and organic carbon, indicating a fine particle predominating pollution episode.
离子物种和碳质组分的分析数据表明钾离子和有机碳同时出现峰值，提示一个细粒子主导的生物质燃烧污染事件； - Magnetic particle detection sensitivity is determined by the peak B'm of magnetic induction intensity, while the electromagnetic yoke lifting power F is all relative to Bm, waveform coefficient K of B and the cross sectional areas S of iron core.
磁粉探伤灵敏度决定于磁感应强度的峰值B'm，而电磁轭提升力F与Bm、B的波形相关系数K、铁芯截面积S等均有关。 - Applied K-ε double equations model and double-fluid model to simulate the aerodynamic field and air-particle fluid field of a 670 t/ h boiler of a certain power plant.
应用K-ω双方程湍流模型和双流体模型对某厂670t/h六角切圆燃烧锅炉炉内空气动力场和气固两相流场进行了数值模拟。 - Increasing the pre-expansion temperature from 323 K to 343 K could increase slightly lauric acid particle sizes and shows little effect on the particle size distribution at 333 K using the 100 μ m nozzle.
对月桂酸微粒化的研究表明，随预膨胀温度的升高，微粒平均直径略微增大，粒径分布相差不多。 - The variation of friction factor with equivalent Reynolds number for the different particle diameters is presented. By fitting the experimental results the permeability K and inertia coefficient F was determined.
分析了不同颗粒直径条件下摩擦阻力系数与等效雷诺数的关系，并通过实验数据拟和得到了渗透率K和惯性常数F。 - On determination of K, Na NH in rainwater by particle chromatography
离子色谱法测定降水中钾、钠、铵 - We bring in size parameter into relaxation time of free electron on basis of Drude model, and build a metal particle n and k model which vary with size and wavelength.
在德鲁特模型的介电函数基础上，对自由电子弛豫时间引入尺度修正，建立了金属粒子n、k值随波长和粒径变化的尺度效应模型。 - After analyzing the disadvantages of the classical k-means clustering algorithm, this paper proposes a novel hybrid clustering algorithm incorporating Particle Swarm Optimization into k-means algorithm.
本文在分析k均值聚类算法存在问题的基础上，用粒子群算法优化k均值聚类算法，提出了一种新的混合聚类算法。 - K+ adsorption of different particle fractions of lou soil varies greatly.
塿土各粒级K十吸附特征有很大区别。 - On basis of Lorentz model, we bring in size parameter into bound electron relaxation time and plasma frequency by analogy with phonon scattering, and build a dielectric particle n and k model which vary with size and wavelength.
在洛伦兹模型基础上，类比声子散射，提出了对束缚电子的等离子体频率和束缚电子弛豫时间引入尺度修正因子，建立了电介质粒子n、k值随波长和粒径变化的尺度效应模型。 - The block-structured grid is generated by zone method and elliptic partial differential system. The k-ε turbulent model, EBU-Arrhenius turbulent combustion model and six-flux radiation model and the particle trajectory model are used in calculation.
计算中采用区域法和偏微分方程法生成三维贴体网格，采用标准k-ε双方程紊流模型，EBU-Ar-rhenius紊流燃烧模型和六通量热辐射模型。 - The gas-liquid mass transfer coefficient k a increases with the increase of magnetic field intensity, superficial gas velocity, superficial liquid velocity and particle size, showing an approximately linear increase with superficial gas velocity.
气液传质系数kLa随磁场强度、表观气速、表观液速、颗粒直径的增加而增加，其中随表观气速的增加近似线性； - The Euler-Lagrange method is used, in which the gas flow is described with standard k-ε turbulence model, and the motion of the liquid droplets is described with the particle trajectory model.
气相用标准k-ε湍流模型描述，喷淋液滴用颗粒轨道模型描述。 - A turbulent round jet laden with spherical particles of uniform size is numerically investigated with the K-ε model of two-phase turbulence and Peskin formulae on the particle turbulent diffusion.
本文采用两相湍流的K&ε模型和颗粒湍流扩散的Peskin公式，对含有相同尺寸的球状颗粒的圆截面湍流射流进行了数值分析。 - We analyzed the calculated n and k value of alumina oxide particles from the size, wavelength, and temperature, conclude that when particle size is compared with the optical wavelength the model can calculate the particle values of optical constants n and k.
从粒径、波长和温度三个方面，通过电介质粒子尺度效应模型对氧化铝粒子进行计算与分析，验证了粒径与波长相当时模型能大致计算出粒子光学常数n、k值。 - High-resolution studies of aluminum K α x-rays produced by proton and α-particle at the beams energy 0.666MeV/amu have been performed with a curved crystal spectrometer.
本文用高分辨弯晶谱仪对0.666MeV/amu的质子和α粒子激发Al的Kαx射线进行了研究。 - Two statistical parameters, skewness and kurtosis are introduced to investigate particle distribution. A quantitative method is formulated to testify the fitting goodness to Γ-spectra.
本年通过引进两个统计学参数：偏度S和峰度K，提出了<1>实际谱是否可用Γ-谱近似的定量化验证方法； - With the deficiency of global search ability for K-means clustering algorithm, K-means algorithm based on particle swarm optimization ( PSO-KM) is proposed.
针对K均值聚类算法在全局优化中的不足，提出了基于粒子群的K均值（PSO-KM）聚类算法。 - The error between S_k calculated using the viscous flow formula and S_v increased with the decrease of the particle size of powder and with the decrease of the bed porosity.
结果表明，粘滞流公式不适用于亚微米粉末，用粘滞流公式计算的SK对于SV的误差随粉末粒度和床层孔度的减小而增大。 - The horizontal spatial variation degree of soil available K 、 available P and capacity of exchangeable base influenced much more by altitude, whereas soil pH value and clay particle content influenced less.
土壤速效K、速效P含量和阳离子代换量水平空间分异程度受海拔的影响较大，而土壤pH值和粘粒含量水平空间分异程度受海拔影响较小。 - The calculated n and k value of different temperature changing with wavelength compare with Brewster value, conclude that the value of particle is consistent with the law of bulk.
将不同温度的随波长变化的粒子n、k计算值与Brewster计算值的规律进行比较，得出粒子与大块物质的变化规律基本符合。 - K~+ in the fine particle is likely from the vegetation emission and biomass burning.
细粒子中的K+可能来自植物的排放和生物质的燃烧。 - The k-ω model is used to simulate the liquid flow inside the continuous feed hydraulic overflow classifier. The overflow surface is modeled using the volume of fluid multiphase ( VOF) model, and the particle classification is described by the stochastic Lagrangian model.
采用k-ω模型模拟连续进料型水力溢流分级机内液相流场，用VOF模型模拟溢流面，用拉格朗日随机轨道模型预测颗粒的分级情况。