In this short note we present a possible connection between the proton radius and the proton mass using the fine structure constant. The Hagedorn temperature is related to the energy levels assumed to be required to f...In this short note we present a possible connection between the proton radius and the proton mass using the fine structure constant. The Hagedorn temperature is related to the energy levels assumed to be required to free the quarks from the proton, where hadronic matter is unstable. We also speculate that there could be a connection between the Hagedorn temperature and the Planck temperature through the fine structure constant. Regarding whether or not there is something to this (or if it is purely a coincidence), we will leave to others and future research to explore. However, we think these possible relationships are worth further investigation.展开更多
基于某公司针对Φ12 mm HRB400E热轧带肋钢筋进行的“提锰降钒”生产实践,参考Mn和V的强化机理,统计并分析了两个时期内轧制该规格钢筋的化学成分及力学性能。结果表明:在HRB400E生产实践中,质量分数为0.001%的V对屈服强度的影响近似相...基于某公司针对Φ12 mm HRB400E热轧带肋钢筋进行的“提锰降钒”生产实践,参考Mn和V的强化机理,统计并分析了两个时期内轧制该规格钢筋的化学成分及力学性能。结果表明:在HRB400E生产实践中,质量分数为0.001%的V对屈服强度的影响近似相等于质量分数为0.020%的Mn对钢材屈服强度的影响。展开更多
文摘In this short note we present a possible connection between the proton radius and the proton mass using the fine structure constant. The Hagedorn temperature is related to the energy levels assumed to be required to free the quarks from the proton, where hadronic matter is unstable. We also speculate that there could be a connection between the Hagedorn temperature and the Planck temperature through the fine structure constant. Regarding whether or not there is something to this (or if it is purely a coincidence), we will leave to others and future research to explore. However, we think these possible relationships are worth further investigation.
文摘基于某公司针对Φ12 mm HRB400E热轧带肋钢筋进行的“提锰降钒”生产实践,参考Mn和V的强化机理,统计并分析了两个时期内轧制该规格钢筋的化学成分及力学性能。结果表明:在HRB400E生产实践中,质量分数为0.001%的V对屈服强度的影响近似相等于质量分数为0.020%的Mn对钢材屈服强度的影响。
