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Development of a redundant anthropomorphic hydraulically actuated manipulator with a roll–pitch–yaw spherical

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 698-710 doi: 10.1007/s11465-021-0646-2

Abstract: The demand for redundant hydraulic manipulators that can implement complex heavy-duty tasks in unstructuredThis study proposes a seven-degree-of-freedom (7-DOF) redundant anthropomorphic hydraulically actuated

Keywords： hydraulic manipulator     inverse kinematic     redundant design     spherical wrist    

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Design and analysis of a class of redundant collaborative manipulators with 2-dimension large rotational

Xiaodong JIN, Yuefa FANG, Dan ZHANG, Xueling LUO

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 1,   Pages 66-80 doi: 10.1007/s11465-019-0570-x

Abstract: In order to provide constant rotational axis for the platform, a class of redundant limbs are designedA class of redundant 2R1T parallel spindle heads is obtained by connecting the redundant limbs with theplatform and the redundant characteristics are verified by the modified Grübler-Kutzbach criterion.

Keywords： parallel mechanism     redundant mechanism     large rotational angles     machine tools     2R1T spindle head     collaborative    

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Modeling and Analysis of Fault-tolerant System With Rejuvenation

Guo Chenghao,Liu Fengyu

Strategic Study of CAE 2007, Volume 9, Issue 10,   Pages 75-79

Abstract: considers both hardware components' faults and "aging"  phenomenon, proposes composing redundant

Keywords： fault-tolerant system     software rejuvenation     software aging     redundant strategy     Non-Markovian stochastic    

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Optimal design of a linkage–cam mechanism-based redundantly actuated parallel manipulator

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 451-467 doi: 10.1007/s11465-021-0634-6

Abstract: In this paper, a means to achieve redundant actuation by adding kinematic constraints is introduced,

Keywords： redundant actuation     parallel manipulator     linkage–cam mechanism     Jacobian     optimal design    

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Ahybrid biogeography-based optimization method for the inverse kinematics problem of an 8-DOF redundant

Zi-wu REN,Zhen-hua WANG,Li-ning SUN

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 7,   Pages 607-616 doi: 10.1631/FITEE.14a0335

Abstract: The redundant humanoid manipulator has characteristics of multiple degrees of freedom and complex jointhabitats in the ecosystem are produced through a hybrid migration operator, that is, the BBO migration strategyand DE/best/1/bin differential strategy, to alleviate slow convergence at the later evolution stageBased on these, an 8-DOF (degree of freedom) redundant humanoid manipulator is employed as an exampleThe proposed HBBO algorithm has been used to solve the inverse kinematics problem of the 8-DOF redundant

Keywords： Inverse kinematics problem     8-DOF humanoid manipulator     Biogeography-based optimization (BBO)     Differential evolution (DE)    

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A new feature selection method for handling redundant information in text classification None

You-wei WANG, Li-zhou FENG

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 2,   Pages 221-234 doi: 10.1631/FITEE.1601761

Abstract: Because of the difficulty in handling the problem that the selected features always contain redundantinformation, we propose a new simple feature selection method, which can effectively filter the redundantFinally, to improve the execution speed, the redundant features in FS1 are filtered by combining a predeterminedStatistical results validate the effectiveness of the proposed method in handling redundant information

Keywords： Feature selection     Dimensionality reduction     Text classification     Redundant features     Support vector machine    

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Optimal redundant placement of PMUs in Indian power grid — northern, eastern and north-eastern regions

Pathirikkat GOPAKUMAR, G. Surya CHANDRA, M. Jaya Bharata REDDY, Dusmata Kumar MOHANTA

Frontiers in Energy 2013, Volume 7, Issue 4,   Pages 413-428 doi: 10.1007/s11708-013-0274-6

Abstract: This paper proposes optimal redundant geographical locations in the northern, eastern and north-eastern

Keywords： phasor measurement unit (PMU)     smart grid (SG)     Indian power grid     northern region Indian power grid (NRIPG)     eastern region Indian power grid (ERIPG)     north-eastern region Indian power grid (NERIPG)     redundancy     integer linear programing (ILP)    

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Precise semi-analytical inverse kinematic solution for 7-DOF offset manipulator with arm angle optimization

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 435-450 doi: 10.1007/s11465-021-0630-x

Abstract: Seven-degree-of-freedom redundant manipulators with link offset have many advantages, including obviousSecondly, the analytical inverse kinematic solution for a non-offset spherical–roll–spherical (SRS) redundant

Keywords： 7-DOF redundant manipulator     inverse kinematics     semi-analytical     arm angle     link offset    

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A redundantly actuated PRPRP radial mechanism in the segment erector of a shield machine for synchronization control

Wanghui BU, Zhenyu LIU, Jianrong TAN, Jin CHENG

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 4,   Pages 463-467 doi: 10.1007/s11465-011-0225-z

Abstract: When the redundant actuator is unlocked, the radial mechanism is able to adjust its posture, which hasOn the other hand, when the redundant actuator is locked or produces enough pre-tightening tensile forceThe redundant actuator also facilitates the equal application of two flexural torques at the hydraulic

Keywords： redundant actuation     parallel mechanisms     five-bar mechanisms     segment erectors     shield machines    

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Equipment–process–strategy integration for sustainable machining: a review

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0752-4

Abstract: Sustainable production is considered to be a favorable strategy for achieving machining upgrades characterizedThus, this study explores the sustainability of machining from the aspects of equipment, process, and strategyIn particular, the equipment, process, and strategy of sustainable machining are systematically analyzed

Keywords： sustainable machining     equipment     process     strategy     manufacturing    

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Model of a Distributed Database Server With Redundant Structure and Its Load Balance

Tian Junfeng,Liu Yuling,Du Ruizhong

Strategic Study of CAE 2004, Volume 6, Issue 6,   Pages 35-42

Abstract:

The technology of redundant services has improved the system availability, but also poses new challenges

Keywords： distributed database     redundancy     load balance     mobile agent     performance analysis    

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A Self-adaptive Automatic Program Designand Application in Vending Machine

Yu Shiming,Ding Guozheng,Liu Lifeng

Strategic Study of CAE 2007, Volume 9, Issue 11,   Pages 147-150

Abstract: automatically, this article presents automatic program design with uniting combined coding and state redundant

Keywords： self-adaptive     state redundant design     automatic program design     fault-restore     vending machine    

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Tool path strategy and cutting process monitoring in intelligent machining

Ming CHEN, Chengdong WANG, Qinglong AN, Weiwei MING

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 2,   Pages 232-242 doi: 10.1007/s11465-018-0469-y

Abstract:

Intelligent machining is a current focus in advanced manufacturing technology, and is characterized by high accuracy and efficiency. A central technology of intelligent machining—the cutting process online monitoring and optimization—is urgently needed for mass production. In this research, the cutting process online monitoring and optimization in jet engine impeller machining, cranio-maxillofacial surgery, and hydraulic servo valve deburring are introduced as examples of intelligent machining. Results show that intelligent tool path optimization and cutting process online monitoring are efficient techniques for improving the efficiency, quality, and reliability of machining.

Keywords： intelligent machining     tool path strategy     process optimization     online monitoring    

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Cyberspace Endogenous Safety and Security Article

Jiangxing Wu

Engineering 2022, Volume 15, Issue 8,   Pages 179-185 doi: 10.1016/j.eng.2021.05.015

Abstract:

Uncertain security threats caused by vulnerabilities and backdoors are the most serious and difficult problem in cyberspace. This paper analyzes the philosophical and technical causes of the existence of so-called “dark functions” such as system vulnerabilities and backdoors, and points out that endogenous security problems cannot be completely eliminated at the theoretical and engineering levels; rather, it is necessary to develop or utilize the endogenous security functions of the system architecture itself. In addition, this paper gives a definition for and lists the main technical characteristics of endogenous safety and security in cyberspace, introduces endogenous security mechanisms and characteristics based on dynamic heterogeneous redundancy (DHR) architecture, and describes the theoretical implications of a coding channel based on DHR.

Keywords： Uncertain threat     Cyberspace endogenous safety and security     Relative right axiom     Dynamic heterogeneous redundant    

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Strategy of Manufacturing Quality Power

The Research Group for Manufacturing Quality Power Strategy

Strategic Study of CAE 2015, Volume 17, Issue 7,   Pages 24-28

Abstract:

The meaning to implement the Manufacturing Quality Power Strategy was systematically discussed in

Keywords： manufacturing power     quality     strategy    

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Title Author Date Type Operation

Development of a redundant anthropomorphic hydraulically actuated manipulator with a roll–pitch–yaw spherical

Journal Article

Design and analysis of a class of redundant collaborative manipulators with 2-dimension large rotational

Xiaodong JIN, Yuefa FANG, Dan ZHANG, Xueling LUO

Journal Article

Modeling and Analysis of Fault-tolerant System With Rejuvenation

Guo Chenghao,Liu Fengyu

Journal Article

Optimal design of a linkage–cam mechanism-based redundantly actuated parallel manipulator

Journal Article

Ahybrid biogeography-based optimization method for the inverse kinematics problem of an 8-DOF redundant

Zi-wu REN,Zhen-hua WANG,Li-ning SUN

Journal Article

A new feature selection method for handling redundant information in text classification

You-wei WANG, Li-zhou FENG

Journal Article

Optimal redundant placement of PMUs in Indian power grid — northern, eastern and north-eastern regions

Pathirikkat GOPAKUMAR, G. Surya CHANDRA, M. Jaya Bharata REDDY, Dusmata Kumar MOHANTA

Journal Article

Precise semi-analytical inverse kinematic solution for 7-DOF offset manipulator with arm angle optimization

Journal Article

A redundantly actuated PRPRP radial mechanism in the segment erector of a shield machine for synchronization control

Wanghui BU, Zhenyu LIU, Jianrong TAN, Jin CHENG

Journal Article

Equipment–process–strategy integration for sustainable machining: a review

Journal Article

Model of a Distributed Database Server With Redundant Structure and Its Load Balance

Tian Junfeng,Liu Yuling,Du Ruizhong

Journal Article

A Self-adaptive Automatic Program Designand Application in Vending Machine

Yu Shiming,Ding Guozheng,Liu Lifeng

Journal Article

Tool path strategy and cutting process monitoring in intelligent machining

Ming CHEN, Chengdong WANG, Qinglong AN, Weiwei MING

Journal Article

Cyberspace Endogenous Safety and Security

Jiangxing Wu

Journal Article

Strategy of Manufacturing Quality Power

The Research Group for Manufacturing Quality Power Strategy

Journal Article