SPINNING

作品数:403被引量:566H指数:10
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Marginal-restraint mandrel-free spinning process for thin-walled ellipsoidal heads被引量:2
《Advances in Manufacturing》2020年第2期189-203,共15页Yong-Cheng Lin Jia-Yang Chen Dao-Guang He Xin-He Li Jian Yang 
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 ...
关键词:ALLOY Thin-walled ellipsoidal heads Spinning Finite element model Dimensional precision 
Large-scale blow spinning of heat-resistant nanofibrous air filters被引量:8
《Nano Research》2020年第3期861-867,共7页Ziwei Li Jianan Song Yuanzheng Long Chao Jia Zhenglian Liu Lei Li Cheng Yang Junchen Liu Sen Lin Haiyang Wang Yibo Liu Minghao Fang Hui Wu 
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...
关键词:air filters HEAT-RESISTANT blow spinning NANOFIBERS 
Synthesis and AO Resistant Properties of Novel Polyimide Fibers Containing Phenylphosphine Oxide Groups in Main Chain被引量:1
《Chinese Journal of Polymer Science》2019年第1期59-67,1-3,共9页Yong Zhao Hong Gao Guo-Min Li Fang-Fang Liu Xue-Min Dai Zhi-Xin Dong Xue-Peng Qiu 
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...
关键词:POLYIMIDE fibers Bis(4-aminophenoxy)phenyl PHOSPHINE oxide(DAPOPPO) Dry-jet wet SPINNING AO resistance 
Motion of Positive Winding of Ring Spinning Frame被引量:1
《Journal of Donghua University(English Edition)》2018年第4期309-314,共6页LI Xinrong CHANG Weiwei WANG Shengze LAN Tianbao 
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...
关键词:RING SPINNING frame active RING RAIL LIFTING BOTTOM ofbobbin forming cam pin 
Mechanical Properties of Polyimide/Multi-walled Carbon Nanotube Composite Fibers被引量:2
《Chinese Journal of Polymer Science》2016年第11期1386-1395,共10页Zhi-xin Dong Tao Feng Chao Zheng Guo-min Li Fang-fang Liu 邱雪鹏 
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 ...
关键词:walled nanotube tensile modulus resultant carboxylic length spinning elongation dispersed 
Drum instability of thinning spinning ultra thin-walled tubes with large diameter-to-thickness ratio被引量:2
《Journal of Central South University》2015年第7期2456-2462,共7页罗不凡 李新和 张旭 骆亚洲 
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...
关键词:drum instability mechanism clearance ratio mandrel-locked ring drum ratio drum stiffness 
The dispersion characteristics of the waves propagating in a spinning single-walled carbon nanotube被引量:5
《Science China(Physics,Mechanics & Astronomy)》2011年第10期1854-1865,共12页CHAN K. T ZHAO YaPu 
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...
关键词:spinning single-walled carbon nanotube gyroscopic phase property nonlocal elasticity nonlocal Timoshenko beamtheory 
基于脊波和Cycle Spinning的SAR图像相干斑抑制
《工程数学学报》2007年第5期819-824,共6页杨晓慧 焦李成 李登峰 
973项目(2001CB309403);国家自然科学基金(60272042;60472084).
本文导出脊波的一个性质,并基于这种具有特殊性质的脊波,提出一种SAR图像相干斑抑制算法。在脊波域中引入Cycle Spinning,以解决基函数所缺失的平移不变性。实验结果表明:这种脊波比小波更适于SAR图像滤波,尤其适于含直线奇异性的图像。
关键词:标准正交脊波 脊波紧框架 CYCLE SPINNING SAR 相干斑 
基于广义交叉验证和Cycle Spinning的SAR图像相干斑抑制被引量:3
《电子与信息学报》2007年第8期1779-1783,共5页杨晓慧 金海燕 焦李成 
国家自然科学基金(60472084);国家973计划(2001CB309403)资助课题
该文基于SAR图像的统计特性,提出了一种相干斑抑制算法。该算法在不需要估计噪声能量的情况下,采用广义交叉验证准则构造目标函数,自适应获取近似最优阈值;然后基于小波阈值收缩完成SAR图像滤波;并引入Cycle Spinning策略有效去除边缘...
关键词:合成孔径雷达 广义交叉验证 CYCLE SPINNING 相干斑 
Geodesic Motion in Spinning Spaces
《Communications in Theoretical Physics》2006年第6X期995-1000,共6页WANG Jun WANG Yong-Jiu 
*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...
关键词:spinning particles geodesic motion Killing-Yano tensor equatorial plane 
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