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核质子
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     The possibility of proton decay for neutron deficient nuclei far from β stability is predicted in the mass region with A<70. The prediction calculation was based on kelson-Garvey mass relation and the mats formula of isospin analog state. The predicted nuclear chart was given. The comparisons between the predictions and the experimental results have been made.
     在质量区A<70范围内,对远离β稳定线的缺中子核质子衰变的可能性进行了理论预言,计算基于Kelson—Garvey核力电荷对称质量关系和同位旋相似态质量公式,给出了预言的核素图,将预言计算与实验结果进行了比较,对绝大多数已发现的核,质子能量在300keV以内符合得很好。
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  相似匹配句对
     Proton Emission in Drip-line Nulei
     滴线质子发射
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     Study of Proton Dripline of P Isotope
     P同位素的质子滴线研究
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     Decommission of nuclear faclities
     设施退役
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     Proton Therapy
     质子治疗
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     NUCLEON STRUCTURE
     子结构
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  nuclear proton
This is interpreted as a supercurrent between two superfluid nuclear proton-pair wave functions: more mass and charge is transported per time unit in pairs than by single nucleons.
      
The distribution of nitrogen in plasma deposited silicon nitride films and in commercially produced, hot-pressed bulk material has been determined by the nuclear (proton) track image analysis technique.
      


The possibility of proton decay for neutron deficient nuclei far from β stability is predicted in the mass region with A<70. The prediction calculation was based on kelson-Garvey mass relation and the mats formula of isospin analog state. The predicted nuclear chart was given. The comparisons between the predictions and the experimental results have been made.The possibility of two proton and three proton decay was also indicated.

在质量区A<70范围内,对远离β稳定线的缺中子核质子衰变的可能性进行了理论预言,计算基于Kelson—Garvey核力电荷对称质量关系和同位旋相似态质量公式,给出了预言的核素图,将预言计算与实验结果进行了比较,对绝大多数已发现的核,质子能量在300keV以内符合得很好。计算同时指出双质子、三质子衰变的可能性,并给出了目标核。

The macro-microscopic model is applied to study the properties of the nuclei far from stability line.Some results are obtained,e.g.proton and neutron drip line,changes of proton and neutron density distributions,the rms radii and neutron skin thickness with isospins.The calculated results of some exotic nuclei are compared with those of relativistic mean-field approach.Brief discussions for proton radioactivity are given.

应用原子核的宏观-微观模型研究远离稳定线核的性质,得到了一些结果,例如质子和中子滴线,质子和中子密度分布及其均方根半径和中子皮厚度随同位素位移的变化.对一些奇异核性质的计算结果同相对论平均场方法计算的结果作了比较,对质子滴线附近核的质子放射性也作了简要讨论.

C NMR spin lattice relaxation times ( T 1), line widths, nuclear Overhauser effcts (NOE) at room temperature have been measured for radiation induced crosslinked cis 1,4 polybutadiene. As crosslinking increases T 1 is almost invariant, line width of —CH 2— group increases markedly, NOE ratio of —CH 2— group decreases significantly too.This implies that long range chain segment motion is hindered and —CH is produced in crosslinking cis 1,4 polybutadiene.

用13CNMR方法,测定了辐射交联顺1,4聚丁二烯在室温下的自旋晶格弛豫时间(T1),核Overhauser因子(NOE),和13CNMR线宽.以及凝胶本体1HNMR的T1和T2弛豫时间,结果表明,辐射交联顺1,4聚丁二烯体系中,随着凝胶含量的增加各碳核质子的T1值变化很小,而—CH2—核的NOE因子明显降低和13CNMR线宽增宽.以及1HNMR的T1和T2表现的双指数弛豫特性反映了交联体系中大分子链段长程运动受阻以及饱和交联叔碳核—CH对链段运动的影响.

 
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