查询词典 fundamental particle

Accelerators are used to study the structure of atomic nuclei and the nature of subatomic particle s and their fundamental interactions.

加速器用来研究原子核的结构，亚原子粒子的性质及其基本相互作用。

In 1932, Chadwick made a fundamental discovery in the domain of nuclear science: he discovered the particle in the nucleus of an atom that became known as the neutron because it has no electric charge.

查德威克立刻着手研究约里奥·居里夫妇做过的实验，用云室测定这种粒子的质量，结果发现，这种粒子的质量和质子一样，而且不带电荷。

A more complicated particle called the chromosome is apparently the fundamental unit of assembly.

一个更复杂的微粒，称为染色质体，显然是包装的基本单位。

In this dissertation, we construct the Bariev model with nine kinds of boundary fields by the matrices K_± defining the boundaries. And then the Lax operator is given in the form ofmatrix, as well as the basic quantities, e.g., the R -matrix, the monodromy matrices and the transfer matrices are defined. By using the expression of the local Lax operator of the model,the action of the monodromy matrices T, T~(-1), U_ on the pseudo-vacuum state is given outin detail. Furthermore, the main fundamental commutation relations are obtained through the reflection equations, the recursive n-particle state as well as the one-particle exact solution is given and the Bethe ansatz equations are found accordingly. Finally, we list the nesting boundary K matrices, which play a crucial role for obtaining the n-particle solution and finding the Bethe ansatz equations, the eigenvalues of the transfer matrices and the energy spectrum of the system by means of the nested algebraic Bethe ansatz method.

在这篇文章中，我们利用边界K_±矩阵构造出了具有九种边界场的Bariev模型，同时给出了该模型L算子的具体矩阵表示形式，并定义了R矩阵，monodromy矩阵以及转移矩阵；接着利用L算子的矩阵形式，给出了其对应monodromy矩阵T、逆矩阵T~(-1)作用到真空态上的值，并利用Yang-Baxter关系及反射方程得到了双行monodromy矩阵U作用到真空态上的值；然后利用反射方程通过复杂的计算得到了一系列重要的基本对易关系式，并给出了模型的递推的多粒子波函数、单粒子解及Bethe ansat方程；最后给出了模型的嵌套的边界K矩阵的具体形式，从而为运用嵌套Bethe ansatz方法求解该模型的多粒子解、Bethe ansatz方程以及系统的能谱打下了很好的基础。

It was designed to exploit the full discovery potential of LHC, to search for Higgs particle and heavy Wand Z-objects, for super-symmetric particles, for compositeness of the fundamental fermions, and to investigate the CP violation in B-physics.

寻找黑格斯粒子是ATLAS最主要的目的，同时它也将用来寻找较重的类W、Z玻色子、超对称粒子，研究基本费米子的结构以及研究B衰变中的CP破坏。

Based on the single-particle theory, we inspect the effects of harmonic wiggler field components on the outputs of free electron lasers (including the components of fundamental and harmonic frequecies), and derive the complete simulation equations for millimeter wave FELs. Meanwhile under the condition that the harmonic wiggler fields are much smaller than the fundamental one, we describe the effects simulated. Using the improved 3D WAGFEL code.

在单粒子理论的基础上，详细考察了摇摆场谐波分量对自由电子激光输出功率的影响，给出了完整的模拟方程组，并在摇摆场谐波振幅远小于其基波振幅值的假定下，利用三维WAGFEL程序和毫米波自由电子激光放大器的参数模拟计算了摇摆场谐波对自由电子激光基频输出功率的影响。

"In the early 1970s it was discovered that these particle s are made up of several types of even more basic units, named quarks, which, together with several types of leptons, constitute the fundamental building blocks of all matter."

1970年代初，发现这些粒子由几类称为夸克的更基本的单元组成。夸克与几类轻子一起组成了所有物质的基本结构单位。

The following results are obtained through above research. 1 The on-line oil monitoring parameters are selected and wear particle fundamental characteristics are defined by analyzing developments, contents of oil monitoring technology and its relation to tribo-system fault. 2 The inductance transducer used to identify large wear particle is developed.

2研制了识别大磨损颗粒的材质和测定其粒度的电感传感器，阐述了磨损颗粒与检测线圈的解析关系，探讨了传感器的理论基础，分析了电感式检测传感器内部的磁场分布，并应用遗传算法优化了传感器几何参数，最后进行了有限元仿真分析。

A fundamental particle is created when threeribbonsarejoined in aplait.

当三条纽带织成一根&辫子&时，就产生了一个基本粒子。

And particles of sound, known as phonons, are just as susceptible to Heisenberg's uncertainty principle as particles of light—or, indeed, any other fundamental particle.

声音粒子，即声子，和光的粒子或者其他基本粒子，都受海森堡的不定性原理影响。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。