Based on the mass-energy equation of special relativity and the assumption of the helical motion of light speed in cosmic space,we have theoretically demonstrated the true implications of Planck’s physical quantities...Based on the mass-energy equation of special relativity and the assumption of the helical motion of light speed in cosmic space,we have theoretically demonstrated the true implications of Planck’s physical quantities:Planck length and time represent the step size and period of the helical motion of light speed in the earliest cosmic space following the Big Bang;Planck energy constitutes the minimum energy unit associated with this spatial helical motion;Planck mass is the mass derived from this minimum energy unit.In accordance with the expression of Planck time,we have derived the relationship formula between gravitational acceleration and the speed of light,thereby uncovering an inevitable intrinsic connection between the gravitational field and the electromagnetic field,and indicating that the four fundamental forces in the universe can be unified.Finally,through our spatial helical motion model,we computed the specific values of the four fundamental forces at the moment of strong nuclear force separation.The results reveal that they are in complete agreement with the theoretical calculation values or experimental values in modern physics and quantum mechanics,thereby providing an interesting hint for the unified field theories.展开更多
目前高铁对沿线城市的影响尚不明确,以往基于遥感数据的高速铁路影响研究主要以定性分析为主。针对这一现状,文章以京广高铁河北段沿线为研究区,提出了一种定性与定量相结合的高铁城市发展影响遥感监测方法。首先构建表征城市发展变化...目前高铁对沿线城市的影响尚不明确,以往基于遥感数据的高速铁路影响研究主要以定性分析为主。针对这一现状,文章以京广高铁河北段沿线为研究区,提出了一种定性与定量相结合的高铁城市发展影响遥感监测方法。首先构建表征城市发展变化的参数指标体系;然后利用多源、多尺度遥感数据,监测京广高铁开通前后研究区(河北省内4座已开通高铁城市)内各指标的时空变化;最后选取研究区毗邻的4座未通高铁的城市作为对照组,利用双重差分(difference in differences,DID)模型量化分析高铁对河北4市的影响。研究发现:①京广高铁河北段沿线4市在2005—2020年间建设用地快速扩张,平均每年扩张2.00%;②高铁建设会显著影响城市的扩张方向,且这种影响与二者的空间关系有关;③与未通高铁的4市相比,京广高铁的开通降低了沿线4市城区面积的扩张速度。展开更多
文摘Based on the mass-energy equation of special relativity and the assumption of the helical motion of light speed in cosmic space,we have theoretically demonstrated the true implications of Planck’s physical quantities:Planck length and time represent the step size and period of the helical motion of light speed in the earliest cosmic space following the Big Bang;Planck energy constitutes the minimum energy unit associated with this spatial helical motion;Planck mass is the mass derived from this minimum energy unit.In accordance with the expression of Planck time,we have derived the relationship formula between gravitational acceleration and the speed of light,thereby uncovering an inevitable intrinsic connection between the gravitational field and the electromagnetic field,and indicating that the four fundamental forces in the universe can be unified.Finally,through our spatial helical motion model,we computed the specific values of the four fundamental forces at the moment of strong nuclear force separation.The results reveal that they are in complete agreement with the theoretical calculation values or experimental values in modern physics and quantum mechanics,thereby providing an interesting hint for the unified field theories.
文摘目前高铁对沿线城市的影响尚不明确,以往基于遥感数据的高速铁路影响研究主要以定性分析为主。针对这一现状,文章以京广高铁河北段沿线为研究区,提出了一种定性与定量相结合的高铁城市发展影响遥感监测方法。首先构建表征城市发展变化的参数指标体系;然后利用多源、多尺度遥感数据,监测京广高铁开通前后研究区(河北省内4座已开通高铁城市)内各指标的时空变化;最后选取研究区毗邻的4座未通高铁的城市作为对照组,利用双重差分(difference in differences,DID)模型量化分析高铁对河北4市的影响。研究发现:①京广高铁河北段沿线4市在2005—2020年间建设用地快速扩张,平均每年扩张2.00%;②高铁建设会显著影响城市的扩张方向,且这种影响与二者的空间关系有关;③与未通高铁的4市相比,京广高铁的开通降低了沿线4市城区面积的扩张速度。
