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characteristic research of a novel electromechanical-hydraulic hybrid actuator with two transmission mechanisms

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0735-x

Abstract: Servo-hydraulic actuators (SHAs) are widely used in mechanical equipment to drive heavy-duty mechanismsHowever, they cannot easily drive heavy-duty mechanisms because of weak bearing capacity.EMHA mainly features two transmission mechanisms.The test results prove that the EMHA has good working characteristics and high energy efficiency.velocity tracking error and energy consumption reduced by 49.7% and 54%, respectively, under the same working

Keywords： electromechanical-hydraulic hybrid actuator (EMHA)     integration     transmission mechanisms     power assistance     energy efficiency     working characteristics    

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Recent advances in electrochemical decontamination of perfluorinated compounds from water: a review

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 2, doi: 10.1007/s11783-023-1618-z

Abstract:

● Recent advances in the electrochemical decontamination of PFAS are reviewed.

Keywords： Perfluorinated compounds     Electrochemical approach     Working mechanisms     Impacting factor     Coupled process    

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Performance design of a cryogenic air separation unit for variable working conditions using the lumped

Jinghua XU, Tiantian WANG, Qianyong CHEN, Shuyou ZHANG, Jianrong TAN

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 1,   Pages 24-42 doi: 10.1007/s11465-019-0558-6

Abstract: petrochemical and semiconductor industries, are being developed with high operating elasticity under variable workingmaterial and energy conservation laws, the piecewise-lumped parameters are extracted under variable workingexchangers, and packing column of a 100000 Nm O /h large-scale ASU is enhanced to adapt to variable working

Keywords： performance design     air separation unit (ASU)     lumped parameter model (LPM)     variable working conditions    

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Two-level uncapacitated lot-sizing problem considering the financing cost of working capital requirement

Yuan BIAN, David LEMOINE, Thomas G. YEUNG, Nathalie BOSTEL

Frontiers of Engineering Management 2020, Volume 7, Issue 2,   Pages 248-258 doi: 10.1007/s42524-019-0069-5

Abstract: Working capital requirement (WCR) has been recognized as a key factor for releasing tied up cash in companies

Keywords： two-level ULS problem     lot-sizing     working capital requirement     ZIO property     infinite production capacity    

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A method to calculate working capacity space of multi-DOF manipulator and the application in excavating

Baochen WEI, Feng GAO

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 2,   Pages 109-119 doi: 10.1007/s11465-012-0323-6

Abstract:

Working capacity refers to the velocity output and force output of a manipulator.In this paper, the method of Linear Programming and a geometric method are proposed to calculate working

Keywords： working capacity     multi-DOF manipulator     capacity polytope     excavating mechanism    

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Unit commitment using dynamic programming–an exhaustive working of both classical and stochastic approach

Balasubramaniyan SARAVANAN, Surbhi SIKRI, K. S. SWARUP, D. P. KOTHARI

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 333-341 doi: 10.1007/s11708-013-0259-5

Abstract: In the present electricity market, where renewable energy power plants have been included in the power systems, there is a lot of unpredictability in the demand and generation. There are many conventional and evolutionary programming techniques used for solving the unit commitment (UC) problem. Dynamic programming (DP) is a conventional algorithm used to solve the deterministic problem. In this paper DP is used to solve the stochastic model of UC problem. The stochastic modeling for load and generation side has been formulated using an approximate state decision approach. The programs were developed in a MATLAB environment and were extensively tested for a four-unit eight-hour system. The results obtained from these techniques were validated with the available literature and outcome was good. The commitment is in such a way that the total cost is minimal. The novelty of this paper lies in the fact that DP is used for solving the stochastic UC problem.

Keywords： unit commitment (UC)     deterministic     stochastic     dynamic programming (DP)     optimization     state diagram    

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Exergy analysis of R1234ze(Z) as high temperature heat pump working fluid with multi-stage compression

Bin HU, Di WU, L.W. WANG, R.Z. WANG

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 493-502 doi: 10.1007/s11708-017-0510-6

Abstract: exergy analysis of multi-stage compression high temperature heat pump (HTHP) systems with R1234ze(Z) working

Keywords： multi-stage compression     high temperature heat pump     heat recovery     exergy destruction     R1234ze(Z) working    

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FOOD SYSTEMS TRANSFORMATION: CONCEPTS, MECHANISMS AND PRACTICES

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 1,   Pages 1-3 doi: 10.15302/J-FASE-2023491

Abstract: FOOD SYSTEMS TRANSFORMATION: CONCEPTS, MECHANISMS AND PRACTICES

Keywords： TRANSFORMATION     SYSTEMS     FOOD     CONCEPTS     MECHANISMS    

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Gripping mechanisms in current wood harvesting machines

D. GOUBET, J. C. FAUROUX, G. GOGU

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1,   Pages 42-61 doi: 10.1007/s11465-013-0358-3

Abstract:

This paper focuses on the structural synthesis of gripping mechanisms used in the mechanization ofThis function is performed with several typical mechanisms which are listed and described in this articleThis study distinguishes two kinds of planar gripping mechanisms mainly used in opening and closing theTwo planar and one spatial existing mechanisms are described.Nine kinematic diagrams of spatial parallel mechanisms are provided.

Keywords： structural synthesis     parallel mechanisms     gripping mechanisms     wood harvesting     harvesting head    

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Working Up Green, and Living Up Green

Ji-shan He

Frontiers of Engineering Management 2014, Volume 1, Issue 1,   Pages 2-2 doi: 10.15302/J-FEM-2014002

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Recent development on innovation design of reconfigurable mechanisms in China

Wuxiang ZHANG, Shengnan LU, Xilun DING

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 1,   Pages 15-20 doi: 10.1007/s11465-018-0517-7

Abstract: Reconfigurable mechanisms can deliberately reconfigure themselves by rearranging the connectivity ofMetamorphic and origami-derived mechanisms are two kinds of typical reconfigurable mechanisms, whichhave attracted increasing attention in the field of mechanisms since they were proposed.This paper presents an overview of recent developments in innovation design of reconfigurable mechanismsin China, including metamorphic and origami mechanisms and their typical applications.

Keywords： innovation design     reconfigurable mechanisms     metamorphic mechanisms     origami-derived mechanisms     development    

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Experimental study on working parameters of earth pressure balance shield machine tunneling in soft ground

ZHU Hehua, LIAO Shaoming, XU Qianwei, ZHENG Qizhen

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 4,   Pages 350-358 doi: 10.1007/s11709-008-0051-5

Abstract: Such findings can not only facilitate establishing relationships between shield working parameters and

Keywords： construction     different     coastal     conveyor     excavation    

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Performance of a bi-layer solar steam generation system working at a high-temperature of top surface

Jinxin ZHONG, Congliang HUANG

Frontiers in Energy 2023, Volume 17, Issue 1,   Pages 141-148 doi: 10.1007/s11708-021-0725-4

Abstract: Many efforts have been focused on enhancing the vapor generation in bi-layer solar steam generation systems for obtaining as much pure water as possible. However, the methods to enhance the vapor temperature is seldom studied although the high-temperature vapor has a wide use in medical sterilization and electricity generation. In this work, to probe the high-temperature vapor system, an improved macroscopic heat and mass transfer model was proposed. Then, using the finite element method to solve the model, the influences of some main factors on the evaporation efficiency and vapor temperature were discussed, including effects of the vapor transport conditions and the heat dissipation conditions. The results show that the high-temperature vapor could not be obtained by enhancing the heat-insulating property of the bi-layer systems but by applying the optimal porosity and proper absorbers. This paper is expected to provide some information for designing a bi-layered system to produce high-temperature vapor.

Keywords： solar steam generation     solar energy     numerical method     porous material    

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Characteristics Analysis of Integrated CAES and CFPP Trigeneration System Considering Working Conditions

Jiajia Li,Peigang Yan,Guowen Zhou,Xingshuo Li,Qiang Li,Jinfu Liu,Daren Yu,

Engineering doi: 10.1016/j.eng.2023.06.015

Abstract: Considering the working conditions of the CFPP, thermal characteristics of three typical operation modes

Keywords： Compressed air energy storage     CFPP–CAES combined cycle     Thermodynamic performance     Technical economics    

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CROP DIVERSITY AND SUSTAINABLE AGRICULTURE: MECHANISMS, DESIGNS AND APPLICATIONS

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 3,   Pages 359-361 doi: 10.15302/J-FASE -2021417

Abstract: research and applications, moving from detailed studies on species interactions in intercropping to working
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Title Author Date Type Operation

characteristic research of a novel electromechanical-hydraulic hybrid actuator with two transmission mechanisms

Journal Article

Recent advances in electrochemical decontamination of perfluorinated compounds from water: a review

Journal Article

Performance design of a cryogenic air separation unit for variable working conditions using the lumped

Jinghua XU, Tiantian WANG, Qianyong CHEN, Shuyou ZHANG, Jianrong TAN

Journal Article

Two-level uncapacitated lot-sizing problem considering the financing cost of working capital requirement

Yuan BIAN, David LEMOINE, Thomas G. YEUNG, Nathalie BOSTEL

Journal Article

A method to calculate working capacity space of multi-DOF manipulator and the application in excavating

Baochen WEI, Feng GAO

Journal Article

Unit commitment using dynamic programming–an exhaustive working of both classical and stochastic approach

Balasubramaniyan SARAVANAN, Surbhi SIKRI, K. S. SWARUP, D. P. KOTHARI

Journal Article

Exergy analysis of R1234ze(Z) as high temperature heat pump working fluid with multi-stage compression

Bin HU, Di WU, L.W. WANG, R.Z. WANG

Journal Article

FOOD SYSTEMS TRANSFORMATION: CONCEPTS, MECHANISMS AND PRACTICES

Journal Article

Gripping mechanisms in current wood harvesting machines

D. GOUBET, J. C. FAUROUX, G. GOGU

Journal Article

Working Up Green, and Living Up Green

Ji-shan He

Journal Article

Recent development on innovation design of reconfigurable mechanisms in China

Wuxiang ZHANG, Shengnan LU, Xilun DING

Journal Article

Experimental study on working parameters of earth pressure balance shield machine tunneling in soft ground

ZHU Hehua, LIAO Shaoming, XU Qianwei, ZHENG Qizhen

Journal Article

Performance of a bi-layer solar steam generation system working at a high-temperature of top surface

Jinxin ZHONG, Congliang HUANG

Journal Article

Characteristics Analysis of Integrated CAES and CFPP Trigeneration System Considering Working Conditions

Jiajia Li,Peigang Yan,Guowen Zhou,Xingshuo Li,Qiang Li,Jinfu Liu,Daren Yu,

Journal Article

CROP DIVERSITY AND SUSTAINABLE AGRICULTURE: MECHANISMS, DESIGNS AND APPLICATIONS

Journal Article