This study demonstrates that beyond standard model (BSM) cosmic fundamental interactions—weak, strong, and electromagnetic forces—can be unified through a common basis of representation. This unification allows for ...
Supported by the National Natural Science Foundation of China(No.51575014,51505020);Key Foundation Project of China Academy of Railway Sciences(No.2021YJ200).
In the structure of double-nut ball-screw mechanism(BSM),the contact angle of the ball-screw determines the relative positional relationship between the balls and the screw as well as the nut.The contact angle is rela...
funded by the National Key Research and Development Program of China(No.2021YFB2600704);the National Natural Science Foundation of China(No.52171272);the Significant Science and Technology Project of the Ministry of Water Resources of China(No.SKS-2022112).
This paper presents an efficient numerical technique for solving multi-term linear systems of fractional ordinary differential equations(FODEs)which have been widely used in modeling various phenomena in engineering a...
Supported by the National Natural Science Foundation of China(No.51575014,51505020);the Key Foundation Project of China Academy of Railway Sciences(No.2021YJ200).
As a key transmission component in computer numerical control(CNC) machine tools,the ball screw mechanism(BSM) is usually investigated under working load conditions. Its accuracy degradation process is relatively long...