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Influence of kinematic redundancy on the singularity-free workspace of parallel kinematic machines

Jens KOTLARSKI, Bodo HEIMANN, Tobias ORTMAIER

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 2,   Pages 120-134 doi: 10.1007/s11465-012-0321-8

Abstract:

In this paper the effect of kinematic redundancy in order to reduce the singularity loci of the directThe relationship between the redundancy and the operational workspace is studied and several analysis

Keywords： parallel robots     kinematic redundancy     singularity avoidance     operational workspace    

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Reliability analysis of the control system of large-scale vertical mixing equipment

YANG Mingjin, LI Xiwen, LI Shaoping, YANG Shuzi

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 2,   Pages 133-138 doi: 10.1007/s11465-008-0037-y

Abstract: was conducted based on reliability modeling theories such as the graph theory, Markov process, and redundancycontrol system can be considerably improved by adopting a control strategy combined with the hot spared redundancyof the primary system and the cold spared redundancy of the emergent one.The reliability performance of the control system can be also improved by adopting the redundancy strategy

Keywords： composite     redundancy     monitoring     vertical     technical    

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Comparative Study on Structural Redundancy of Cable-Stayed and Extradosed Bridges Through Safety Assessment Article

Khawaja Ali, Hiroshi Katsuchi, Hitoshi Yamada

Engineering 2021, Volume 7, Issue 1,   Pages 111-123 doi: 10.1016/j.eng.2020.07.021

Abstract: Moreover, a significant increase in structural redundancy occurs with an incremental increase in the

Keywords： Cable-stayed bridge     Extradosed bridge     Redundancy     Stay cable     Safety factor     Reliability analysis    

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Measurement and Information Technology

Zhang Guoxiong

Strategic Study of CAE 2000, Volume 2, Issue 3,   Pages 62-66

Abstract: recognition, neural network, simulation and virtual measurement, error separation, error compensation, redundancyApplications of redundancy technique in roundness and spindle error motion measurement, in large scaleRedundancy technique provides a powerful means in optimization of measurements, system self-calibration

Keywords： measurement     information technology     error compensation     modeling     redundancy technique     error separation    

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Characters of Future Aircraft Hydraulic System

Wang Zhanlin,Chen Bin

Strategic Study of CAE 1999, Volume 1, Issue 3,   Pages 5-10

Abstract: weight, small size, high-pressure, high power, variable pressure, intellectualization, integration, redundancy

Keywords： airborne hydraulic systems     high-pressure     variable pressure     redundancy     power-by-wire    

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A data envelopment analysis of agricultural technical efficiency of Northwest Arid Areas in China

Yubao WANG, Lijie SHI, Haojie ZHANG, Shikun SUN

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 2,   Pages 195-207 doi: 10.15302/J-FASE-2017153

Abstract: pure technical efficiency was more consistent with that of total technical efficiency; thirdly, input redundancy

Keywords： agricultural production efficiency     DEA model     input redundancy     irrigation districts     Northwest Arid Areas    

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Temporal variation of heavy metal pollution in urban stormwater runoff

Wen LI, Zhenyao SHEN, Tian TIAN, Ruimin LIU, Jiali QIU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 692-700 doi: 10.1007/s11783-012-0444-5

Abstract: Redundancy analysis revealed that four environmental variables (rainfall depth, intensity, antecedent

Keywords： urban stormwater     heavy metal pollution     temporal variation     event mean concentration     first flush effect     redundancy    

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Regional wind power forecasting model with NWP grid data optimized

Zhao WANG, Weisheng WANG, Bo WANG

Frontiers in Energy 2017, Volume 11, Issue 2,   Pages 175-183 doi: 10.1007/s11708-017-0471-9

Abstract: The former method selects the subset according to the criterion of minimal-redundancy-maximal-relevance

Keywords： regional wind power forecasting     feature set     minimal-redundancy-maximal-relevance (mRMR)     principal component    

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Study of Bus Management of Airborne Electromechanical System

Wang Zhanlin,Qiu Lihua

Strategic Study of CAE 2001, Volume 3, Issue 6,   Pages 48-52

Abstract: scheme which can, by means of the data bus, make the management of subsystem have the abilities of redundancy

Keywords： distributed multiprocessor     simulation platform     tasks distribution     task scheduling     redundancy    

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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: of structure and work for a distributed database server system, and discussions are focused on its redundancy

Keywords： distributed database     redundancy     load balance     mobile agent     performance analysis    

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Cyber Resilience Enabled by Endogenous Safety and Security: Vision, Techniques, and Strategies

Wu Jiangxing , Zou Hong , Xue Xiangyang , Zhang Fan , Shang Yuting

Strategic Study of CAE 2023, Volume 25, Issue 6,   Pages 106-115 doi: 10.15302/J-SSCAE-2023.06.018

Abstract: Moreover, the study goes further to propose a dynamic heterogeneous redundancy architecture based

Keywords： cyberspace     endogenous safety and security     cyber resilience     structure encryption     dynamic heterogeneous redundancy    

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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: Effective utilization of renewable energy sources and efficient management of electric energy are essential for any developing countries like India. This can be envisioned through the implementation of concepts of smart grid (SG). One of the key requisites for SG implementation is that the grid should be completely observable. Renovation of conventional Indian power grid to a SG necessitates incorporation of the phasor measurement units (PMUs) in the present power grid measurement and monitoring system. Since the cost of PMU is high and any bus containing a PMU makes the neighboring connected buses observable, optimal placement of PMUs is very important for complete observability of the grid. This paper proposes optimal redundant geographical locations in the northern, eastern and north-eastern regions of Indian power grid for PMU placement. The PMUs installed in these geographical locations will make the grid completely observable and maintain the observability under the conditions of failure of some PMUs or branch outages. Integer linear programming has been used for finding the optimal PMU locations. The results proposed in this paper can be a stepping stone for revamping the Indian power grid to a SG ensuring complete observability during different contingency conditions.

Keywords： grid (NRIPG)     eastern region Indian power grid (ERIPG)     north-eastern region Indian power grid (NERIPG)     redundancy    

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An efficient lossy link localization approach for wireless sensor networks Article

Wen-yan CUI, Xiang-ru MENG, Bin-feng YANG, Huan-huan YANG, Zhi-yuan ZHAO

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 5,   Pages 689-707 doi: 10.1631/FITEE.1601247

Abstract: To address the issue, we propose the conditional information entropy based redundancy elimination (CIERE

Keywords： Lossy link localization     Redundancy eliminating algorithm     Set-covering     Wireless sensor networks (WSNs    

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Title Author Date Type Operation

Influence of kinematic redundancy on the singularity-free workspace of parallel kinematic machines

Jens KOTLARSKI, Bodo HEIMANN, Tobias ORTMAIER

Journal Article

Reliability analysis of the control system of large-scale vertical mixing equipment

YANG Mingjin, LI Xiwen, LI Shaoping, YANG Shuzi

Journal Article

Comparative Study on Structural Redundancy of Cable-Stayed and Extradosed Bridges Through Safety Assessment

Khawaja Ali, Hiroshi Katsuchi, Hitoshi Yamada

Journal Article

Measurement and Information Technology

Zhang Guoxiong

Journal Article

Characters of Future Aircraft Hydraulic System

Wang Zhanlin,Chen Bin

Journal Article

A data envelopment analysis of agricultural technical efficiency of Northwest Arid Areas in China

Yubao WANG, Lijie SHI, Haojie ZHANG, Shikun SUN

Journal Article

Temporal variation of heavy metal pollution in urban stormwater runoff

Wen LI, Zhenyao SHEN, Tian TIAN, Ruimin LIU, Jiali QIU

Journal Article

Regional wind power forecasting model with NWP grid data optimized

Zhao WANG, Weisheng WANG, Bo WANG

Journal Article

Study of Bus Management of Airborne Electromechanical System

Wang Zhanlin,Qiu Lihua

Journal Article

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

Tian Junfeng,Liu Yuling,Du Ruizhong

Journal Article

Cyber Resilience Enabled by Endogenous Safety and Security: Vision, Techniques, and Strategies

Wu Jiangxing , Zou Hong , Xue Xiangyang , Zhang Fan , Shang Yuting

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

An efficient lossy link localization approach for wireless sensor networks

Wen-yan CUI, Xiang-ru MENG, Bin-feng YANG, Huan-huan YANG, Zhi-yuan ZHAO

Journal Article