本文综述了北京大学在中子物理方面依托4。
科考站将迎接来自各个领域的研究人员，研究领域涉及：微中子天文学、宇宙学、地震学和大气物理学。
It will house researchers from fields as diverse as neutrino astronomy, cosmology, seismology and atmospheric physics.
现在，两个小组的物理学家宣称他们掌握了中子星核心中超流的更直接的证据。
Now, two teams of physicists say they have more direct evidence for superfluidity in the heart of a neutron star.
在当前有关物理学的“标准模型”中，包括质子、电子、中子以及大量更怪异粒子在内的每一种粒子都有其反粒子“镜像”。
Thecurrent "standard model" of physics holds that each particle -protons, electrons, neutrons and a zoo of more exotic particles - has itsmirror image antiparticle.
在反应堆物理设计和分析时，经常要进行微扰计算，以快速分析堆芯中子截面扰动下反应性的变化量。
Perturbation calculation will be required to rapidly determine the changes of reactivity caused by core neutron cross sections perturbation in reactor physics design and analysis.
1959年，就在物理学家解释了超导现象两年之后，其中一些物理学家提出在超高温，超高压的中子星内存在相似的成对现象。
In 1959, just 2 years after physicists worked out that explanation for superconductivity, some of them proposed that similar pairing may happen inside incredibly hot, hugely pressurized neutron stars.
在反应堆物理计算中，扰动计算需要中子本征值方程的共轭方程。
Perturbation calculation in reactor physics requires the neutron adjoint eigenvalue equation.
【物理学】元素：元素，由原子组成的物质，其原子中的每一核子具有同样数量的中子、用一般的化学方法不能使之变得更为简单的物质的元素。
Chemistry Physics a substance composed of atoms having an identical number of protons in each nucleus. Elements cannot be reduced to simpler substances by normal chemical means.
对于堆芯内布置不同燃耗深度的燃料元件的反应堆，应用本模型可以估算堆芯燃耗物理参数如：堆芯中子增殖系数、燃料元件燃耗增值等。
For reactors loaded with fuel assemblies of different burnup, the evaluation model can te used to calculate core physical parameters such as core neutron multiplication factor, burnup increment, etc.
给出了驱动不同次临界度包层所需的中子源强度及其相应的物理参数。
The neutron source intensity and relevant physical parameters for driving the reactor with the different subcritical states are given.
按照本文所提出的物理模型，只要计算的中子数足够多，其计算结果可完全在实验误差范围之内。
Adopting the physics mode given in this thesis, the accuracy of computed results is within experimental errors if the number of computed neutron is large enough.
科考站将迎接来自各个领域的研究人员，研究领域涉及：微中子天文学、宇宙学、地震学和大气物理学。
It will house researchers from fields as diverse as neutrino astronomy cosmology seismology and atmospheric physics.
本文建立了可开展冷中子源装置氢系统物理方案研究的计算程序和方法。
This paper establishes the calculation program and methods to analyze the nuclear heating and gain factor.
用非平衡态统计物理方法研究在高温与中子辐照的环境中金属材料的氦脆化。
Nonequilibrium statistical method is used to study the helium embrittlement of metals under neutron irradiation and high temperature.
介绍了10MW高温气冷实验堆的数字化物理启动中子注量率监测系统的设计和功能。
This paper introduces a design of digital neutron flux monitoring system for 10mw high temperature gas cooled reactor and its performances.
从理论上建立了描述地-空界面上大气中子辐射场的数学-物理模型。
Some (mathematic) -physical equations that describe the natural neutron radiation field are theoretically established.
在物理模型数值模拟的基础上，确定了上述关系中的待定参量，给出了能量转换和中子产额的定标规律。
Based on numerical simulation for the physical model, the uncertain parameters stated above are determined, and both the scaling lows of energy conversion and neutron yield are given.
计算结果可用于中子斩波器的理论设计及其相关物理参数的选择。
The results can provide the reference and theoretical support for optimizing design and manufacturing of choppers .
结果显示，相对灵敏度的模拟与实验结果符合得很好，而中子成像模拟能为惯性约束聚变物理实验的开展提供指导。
The preliminary experiment results show that the device selection and technique approach are suitable for the neutron imaging system, achieving the research goal.
讨论了以重金属铅作为冷却剂的快中子核反应堆的基本堆物理特征。
The fundamental reactor physics characteristics of the fast neutron reactor with the heavy metal lead as coolant are discussed.
论述了冷聚变观念，双中子态模型的物理基础；
This paper simply discouses upon the idea of cold fusion and physical foundation of the dineutron model;
为了测试一种关于太阳内部核聚变反应频率的假说，物理学家根据假说，计算出太阳每年能产生的中子总数。
To test a hypothesis about the frequency of fusion reactions in the Sun, physicists calculated the number of neutrinos the Sun would produce annually if the hypothesis were correct.
这些粒子的大部分都不能被那时的模型物理学家描述，那时的物理学家的认识是物质由原子构成，原子由原子核及原子核外的电子构成，原子核由质子和中子构成。
Most of them did not fit into the models physicists had at that time, that matter consisted of atoms with neutrons and protons in the nucleus and electrons round it.
这些粒子的大部分都不能被那时的模型物理学家描述，那时的物理学家的认识是物质由原子构成，原子由原子核及原子核外的电子构成，原子核由质子和中子构成。
Most of them did not fit into the models physicists had at that time, that matter consisted of atoms with neutrons and protons in the nucleus and electrons round it.
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