查询词典 neutron

It is shown, for the first time, that the pairing strength of the neutron, Gn, increases dramatically around the magic number N=82, while for the proton it is strongly related to the odd-even difference of the neutron number.

在相对论平均场框架下系统地研究了稀土区同位素链的对力强度，首次发现了中子的对力强度 Gn在中子幻数N=82处突然增大以及质子的对力强度 Gp和中子的奇、偶性有关的特性，证明了对力强度本质上是和核的壳层结构紧切相关。

Our results show that with the up to date experimental data, 13C can not sufficiently burn, the neutron number density decrease, the timescale of neutron source become long and these come into conflict with model of Thermal Pulse AGB star.

我们经过理论分析后，认为AGB星演化模型中典型温度升高以及相关模型改变可能是解决矛盾的一个方向。

The relationship between spectral line intensities from different species in the plasma and neutron yield and shot number shows that: with high neutron yield, the deuterium ionization degree is high; nitrogen and oxygen atoms are also ionized to a higher ionization state; electron beams emitted at the collapse time of plasma pinch column may cause strong electrode sputtering processes.

可见光谱中氘、金属材料Cu、Fe和空气成分O、N的原子或离子谱线强度与中子产额和放电次数的关系证明：中子产额高时，氘气的电离率高，N、O等杂质气体也被电离到高电离态，焦点箍缩柱崩溃时发射的强电子束可以引起强电极溅射过程。

Neutron capture reaction i.e reaction, it is an important neutron nuclear reaction.

中子俘获反应即反应，是一种重要的中子核反应。

At this point, a neutron star pair, or even a neutron star-black hole pair, is formed.

此刻，一个双中子星、甚至中子星-黑洞对将形成。

Based on the interactions of neutron and matters, we calculate the neutron index either from the standpoint of wave or classical particle mechanics as the scattering amplitude can be easily related to the actual potential well producing the scattering.

基于中子与物质相互作用的机理，考虑到实际应用的低能中子的特性以及中子的波粒二相性，从量子力学的角度出发，得出了物质的散射长度和吸收截面与材料对中子的折射率之间的关系。

When treat-ing the spectra, transition, scattering problems, we must use the semi-microscopicapproach. The main new conclusions in this thesis are following:We found the different shrinking effect in ∧ hypernuclei and 〓 hypernuclei, the shrink-ing effect in ∧ hypernuclei are confirmed in a recent experiment;We also found a new approach to treat the configuration mixing of ∧∧ hypernuclei and〓 hypernuclei and that the conversion process may change the spectra and widths of〓 hypernuclei;For the first time, we investigate the neutron star matter without the ∑ hyperon butwith the new meson 〓(975) and φ(1020), we found the contribution of 〓 and φ canmake the equation of state of neutron star soften, and the maximum mass of neutronstar reduces;we extract a set of optimum parameters of the optical potential for the scattering of 〓with nucleus, we found that the 〓 nucleus optical potential need a bigger imaginarypart.

本论文所取得的主要新成果是：独立揭示∧超核和〓超核的不同的收缩效应，其中∧超核的收缩效应被最新实验证实；提出了处理∧∧超核与〓超核混合态的新方法，并发现conversion过程使〓超核能谱和宽度改变；首次在中子星研究中在不包含∑超子的同时考虑新介子〓(975)和φ(1020)，并发现这可使中子星物质的状态方程变软、中子星半径变大、质量变小；独立提取了〓核光学势的一组最佳参数，并证明〓+核光学势要求一个较大的虚部。

Methods A moderated BF3 proportional neutron counter was used for measurement of neutron dose of cosmic radiation in cabin of B-747 flying from Beijing to New York and Beijing-Stockholm-Beijing.

采用慢化BF3中子监测器，在北京―纽约和北京―斯德哥尔摩航线飞行的B-747飞机上进行了测量，起飞、着陆阶段每2 min测一次，巡航阶段第30 min测试一次，高度和纬度利用飞机仪表读出，地磁纬度采用人造地球卫星环境手册的公式计算。

Neutron detection module, including BF3 proportional counter encased by 9 inch or 3 inch diameter polystyrene sphere, is used for mean neutron energy distribution measurement in treatment room.

2中子侦检核仪模组，为BF3比例计数器外套直径9吋与3吋紧乙烯球，作为治疗室内射束外中子能量分布量测工具。

It is better to use a neutron or proton rich projectile with atomic number notfar away from the expected exotic nuclei because the difference in the fragmentationcross section induced by neutron or proton rich and stable projectiles becomes smallwith the increase of the distance between the produced fragment and the projectile. Measurements of 〓 for 〓,〓 and 〓 at intermediate energieshave been performed on the Radioactive Ion Beam Line in Lanzhou.

所选的丰中子或丰质子炮弹最好离所需产生的丰中子或丰质子奇异核比较近，因为随着炮弹与产生的核的距离的增加，丰中子或丰质子炮弹与稳定的炮弹的碎裂反应产生奇异核的产生截面的差别变小。

The most precious possession that ever comes to a man in this world is a womans heart.

在这个世界上，男人最可贵的财产就是一个女人的心。

Some 4 years above company and divisional management experience, 6 year foreign enterprises work experience.

有4年以上的公司及部门管理经验，6年外企工作经验。