In the big bang theory,many key puzzles have not been solved. This paper presents an expansioncollapse theory of cosmological evolution that the universe originated from the big bang,expanding at beginning,then contracting,and finally collapsing to the origin of the big bang. Some answers are given to the formation of thebig bang,the triggering mechanism of the big bang,the accelerating expansion of universe,dark energy andgravitational waves.
Nodularization Effect Evaluationof Ductile Iron basedon Quick Testing Oxygen Content in Liquid Iron
Fabrication and Mechanical Property of SiC/SiC Composites by Selective Laser Sintering Technology Combined with Precursor Impregnation and Pyrolysis Process
Stability Analysis of a Class of SIR Epidemic Model with Delayed Spontaneous Variation of Virus
Reliability Analysis of ZZ Distribution Under Zero Failure Data
β Property in W hyperbolic Spaces
Related Author
PEI Li-xin
XU Zhen-yu
LI Da-yong
ZENG Tao
ZHOU Yikai
ZHANG Kun
YU Siwen
LI Dong mei
Related Institution
School of Material Science and Engineering,Harbin University of Science and Technology
School of Civil Engineering and Architecture, Harbin University of Science and Technology
School of Material Science and Engineering, Harbin University of Science and Technology
School of Sciences, Harbin University of Science Technology
School of Applied Sciences,Harbin University of Science and Technology