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3-UPU (universal-prismatic-universal joint) 1

CFD 1

Three Gorges Project 1

bouncing 1

clearance 1

computational 1

control 1

copper 1

development 1

distribution 1

endwall 1

excessive control 1

experiment 1

grouting 1

index of restrictive parameter 1

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limited clearance 1

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Copper and zinc interaction on water clearance and tissue metal distribution in the freshwater mussel

Tianxiang XIA, Xuehua LIU

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 236-242 doi: 10.1007/s11783-010-0218-8

Abstract: Copper and zinc interaction on clearance from water and distribution in different tissues was investigatedClearance rate of Cu or Zn from water was highly dependent on exposure concentration.Interaction effect was most evident at 300 μg·L Cu exposure and depressed the Zn clearance rate significantlyHowever, the presence of 100 μg·L and 300 μg·L Zn hardly affected the Cu clearance rate.

Keywords: interaction     mussel     copper     zinc     clearance     distribution    

Fluid damping clearance in a control valve of injector

ZHANG Jianming, ZHANG Weigang, YANG Bing, WANG Yawei

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 439-441 doi: 10.1007/s11465-007-0075-x

Abstract: A force model of a control valve of injector is set up, and the changes of the fluid damping clearanceResults indicate that a damping clearance of 0.02–0.03 mm between the poppet and the valve guide is the

Keywords: control     computational     bouncing     CFD     excessive control    

Measurement and analysis of tip clearance unsteady flow spectrum in axial-flow fan rotor

LIU Bo, HOU Weimin, MA Changyou, WANG Yangang, ZHOU Qiang

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 448-452 doi: 10.1007/s11708-008-0088-0

Abstract: The tip clearance unsteady flow development from the inlet to the outlet of an axial-flow rotor was revealedThe experiment provides test basis for thoroughly understanding the tip clearance unsteady flow and buildinginteraction models of tip clearance flow and main flow.

Keywords: development     endwall     unsteady pressure     pressure measurement     experiment    

Analysis and Study of New Type Hydrostatic Bearing Restrictor With Very Good Restrictive Performance

Meng Xinzhai,Meng Zhaoyan

Strategic Study of CAE 2005, Volume 7, Issue 3,   Pages 49-52

Abstract: The bearing clearance may maintain nearly constant. ③There are three new types of restrictors: new typevariable clearance slide valve, new type clearance sheat and new type variable diameter capillary.

Keywords: variable clearance sliding valve     variable clearance sheet     variable diameter capillary     index of restrictive    

Parasitic rotation evaluation and avoidance of 3-UPU parallel mechanism

Haibo QU, Yuefa FANG, Sheng GUO

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 2,   Pages 210-218 doi: 10.1007/s11465-012-0317-4

Abstract: constraint system of the 3-UPU parallel mechanism, the equation about the parasitic rotation and limited clearancethe norm of possible parasitic rotation is employed to evaluate the mechanism stability with limited clearance

Keywords: parallel mechanism     3-UPU (universal-prismatic-universal joint)     parasitic motions     limited clearance     redundantly    

Clearance grouting process test of Three Gorges Project ship lift rack and nut column

Zhan Jianxia and Li Jihu

Strategic Study of CAE 2013, Volume 15, Issue 9,   Pages 45-49

Abstract: to choose the suitable grouting material and grouting process, and simulate the actual situation of clearance

Keywords: rack     nut column     grouting     ship lift     Three Gorges Project    

Zero ground clearance dual antenna pair for metal-cased fifth-generation multiple input multiple output Correspondence

Le CHANG, Wenbao HE, Xiaomin CHEN, Xiaoxue TAN, Juan CHEN, Kai KANG, Yang YANG

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 10,   Pages 1562-1567 doi: 10.1631/FITEE.2200119

Abstract:

The fifth-generation (5G) era has already arrived and many applications are prospering. The multiple input multiple output (MIMO) system is the key to enhancing channel capacity for both the fourthgeneration (4G) wireless communication and 5G systems. For a smartphone, the most challenging task for antenna engineers is to accommodate the numerous 4G and 5G multi-port antennas while avoiding mutual coupling problems (Li Y et al., 2009, 2012; Hong, 2017; Sharawi et al., 2017). Therefore, implementing multiple antennas within a small space is a worthwhile topic to study, especially for antennas operating at the same frequency.

Keywords: 天线对;第五代移动通信技术(5G);Sub-6 GHz;极化正交;智能终端;智能手机;零净空;全金属外壳;多输入多输出(MIMO)    

Title Author Date Type Operation

Copper and zinc interaction on water clearance and tissue metal distribution in the freshwater mussel

Tianxiang XIA, Xuehua LIU

Journal Article

Fluid damping clearance in a control valve of injector

ZHANG Jianming, ZHANG Weigang, YANG Bing, WANG Yawei

Journal Article

Measurement and analysis of tip clearance unsteady flow spectrum in axial-flow fan rotor

LIU Bo, HOU Weimin, MA Changyou, WANG Yangang, ZHOU Qiang

Journal Article

Analysis and Study of New Type Hydrostatic Bearing Restrictor With Very Good Restrictive Performance

Meng Xinzhai,Meng Zhaoyan

Journal Article

Parasitic rotation evaluation and avoidance of 3-UPU parallel mechanism

Haibo QU, Yuefa FANG, Sheng GUO

Journal Article

Clearance grouting process test of Three Gorges Project ship lift rack and nut column

Zhan Jianxia and Li Jihu

Journal Article

Zero ground clearance dual antenna pair for metal-cased fifth-generation multiple input multiple output

Le CHANG, Wenbao HE, Xiaomin CHEN, Xiaoxue TAN, Juan CHEN, Kai KANG, Yang YANG

Journal Article