It is hypothesized that leptons and hadrons are all composed of unit particles and elementary particle reactions are the processes of pair production and annihilation of a unit partide and its antiparticle, change from a unit particle pair to another and recombination of unit particles.
本文把奇异数、粲数、底数和同位旋概念推广于轻子，认为轻子和强子都是由单元粒子组成的，并假设基本粒子反应过程是单元粒子产生、湮灭、转化和重组的过程，确定了基本粒子的特征组成，从组成上说明了基本粒子反应中产物和反应物之间的联系。
Taking the plume of a stationary plasma thruster as the research object,and a numerical model based on particle-in-cell(PIC) and direct simulation Monte-Carlo(DSMC) hybrid method was developed to study profiles of the plasma potential,electron number density and ion current density of flow field.
以稳态等离子体推力器羽流为研究对象,基于单元粒子法-直接模拟蒙特卡罗法混合法,建立数值仿真模型,研究流场电势、电子数密度、离子电流密度分布,通过与实测数据及已有模拟结果的比较验证模型。
Binary PSO algorithm for test paper problem
一种求解组卷问题的二元粒子群算法
Binary PSO Algorithm for Multiple 0/1 Knapsack Problem
求解多维0/1背包问题的二元粒子群算法
Particle that this element gets its type information from.
此元素从中获取其类型信息的粒子。
an instrument that detects ionizing radiation from elementary particles.
从元素粒子探测致电离辐射的仪器。
Linear Discontinuous Finite Element Method for Particle Transport Equation
粒子输运方程的线性间断有限元方法
When the mole is used, the elementary entities must be specified and may be atoms, molecules, ions, electrons, other particles, or specified groups of such particles.
在使用摩尔时，基本单元应予指明，可以是原子、子、子、子及其他粒子，或这些粒子的特定组合。
a radioactive transuranic element synthesized by bombarding einsteinium with alpha particles.
一种放射性超铀元素，用α粒子轰击锿而合成。
a radioactive transuranic element; discovered by bombarding curium with alpha particles.
一种放射性超铀元素，在用α粒子轰击锔时发现。
Light is known to be dual, behaving as both a particle and a wave.
我们知道光是二元性的，即兼具粒子和波的性质。
Microwave Assisted Synthesis of PbS Nanoparticles by One-step Reaction
微波辐照元素反应合成硫化铅纳米粒子
Distribution of mineral elements along the maize ear and its relationship with kernel abortion
玉米果穗矿质元素分布与子粒败育关系研究
STUDY ON THE RELATIONSHIP BETWEEN KERNEL ABORTION AND DISTRIBUTION OF MINERAL ELEMENTS IN MAIZE EAR
玉米子粒败育与果穗上元素分配关系的研究
Study on Micron Particle Enrichment of Arsenic and Control During Coal Combustion;
燃煤细粒子富集痕量元素砷及其排放控制研究
Research on the Characteristics and Measurement of the Shot Noise for Electronic Components
电子元器件散粒噪声特性及测试方法研究
Study on the processing technology of coconut water pulp partical drink and its mineral elements analysis
椰子水果粒饮料工艺研究及其矿物元素分析
Fault Condition Recognition with Kernel Principal Component Analysis Based on Particle Swarm Optimization
基于粒子群优化的核主元分析的故障状态识别
Chaos Particle Swarm Optimization Approach to Robotic Cells Scheduling
自动化生产单元调度的混沌粒子群算法
Self-adaptive particle swarm optimization algorithm for binary CSPs
一种求解二元约束满足问题自适应粒子群算法