supported by the National Nat-ural Science Foundation of China(Grant No.51775564);the 973 program(Grant No.2014CB046600);the Fundamental Research Funds for the Central Universities of Central South University(Grant No.2019zzts946).
Metal sheet spinning is an advanced near-net forming technology for the manufacture of thin-walled ellipsoidal heads.The exact control of dimensional accuracy,however,is a considerable problem for spinning thinwalled ...
This study was supported by the National Natural Science Foundation of China(Nos.51788104 and 51661135025);the National Basic Research Program of China(No.2015CB932500);China Postdoctoral Science Foundation(Nos.2018M640124 and 2019T120083).
Particulate matter(PM)pollution has become a serious problem worldwide and various kinds of nanofibrous filters aiming to solve the problem have been developed.It is urgent to remove PM from high-temperature pollution...
financially supported by the National Basic Research Program of China (973 Program, Key Project: No. 2014CB643604)
A series of co-polyimide(PI)fibers containing phenylphosphine oxide(PPO)group were synthesized by incorporating the bis(4-aminophenoxy)phenyl phosphine oxide(DAPOPPO)monomer into the PI molecular chain followed by dry...
National Basic Research Program of China(973 Program)(No.2010CB334711)
The problems of the bobbin capacity and the high speed unwinding yarn taking off the ring or not during the winding of the ring spinning machine were dealt with. The mathematical model of the ring winding machine moti...
financially supported by the National Basic Research Program of China(No.2014CB643604);the National Natural Science Foundation of China(No.51173178)
A series of polyimide(PI)/multi-walled carbon nanotube(MWCNT) composite fibers were prepared by copolymerizing a mixture of monomers and carboxylic-functionalized MWCNTs, followed by dry-jet wet spinning, thermal ...
Project(2014CB046600)supported by the National Basic Research Program of China
In order to explore drum instability problems of thinning spinning ultra thin-walled tubes with large diameter-to-hickness ratio, experiments of thinning spinning ultra thin-walled tubes with different clearances betw...
supported by the National Natural Science Foundation of China (Grant Nos.60936001, 11021262 and 11011120245);the National Basic Research Program of China (Grant No. 2007CB310500)
As the nano-motor becomes a mechanical reality, its prototype can be envisaged as nano-sized rotating machinery at a situation,albeit for different purposes, like that in the first half of the 20th century during whic...
*The project supported by the National Basic Research Program of China under Grant No. 2003CB716300 and Natural Science Foundation of Hunan Educational Department under Grant Nos. 03A028 and 02C203
In this paper the generalized equations for spinning space are investigated and the constants of motion are derived in terms of the solutions of these equations. We study the geodesic motion of the pseudo-classical sp...