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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.It is usually be represented by output capacity space.In this paper, the method of Linear Programming and a geometric method are proposed to calculate workingcapacity spaces in different situations.The output capacity space can be helpful to the driving parameters selection.

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

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

Jinxin ZHONG, Congliang HUANG

Frontiers in Energy 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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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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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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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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Working Procedure of Developing a New Deep Hard-rock Burst-prone Deposit

Guo Ran,Yu Runcang

Strategic Study of Chinese Academy of Engineering 2002, Volume 4, Issue 7,   Pages 51-55

Abstract: In this paper, the authors create a general working procedure to develop a new hard-rock burst-prone

Keywords： rockburst     mining technique     working procedure    

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The Research of the Working Parameter Adjustment Principle and Control Strategy on Hydraulic Impact Machine

Liu Zhong,,Chu Fulei,Long Guojian,Liao Yongzhong

Strategic Study of Chinese Academy of Engineering 2005, Volume 7, Issue 10,   Pages 73-77

Abstract:

This paper analyses the working parameter adjustment methods for hydraulic impact machine at home

Keywords： hydraulic impact machine     continual adjust     working parameter     control system    

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Efficient acetylene/carbon dioxide separation with excellent dynamic capacity and low regeneration energy

Frontiers of Chemical Science and Engineering   Pages 1616-1622 doi: 10.1007/s11705-022-2183-x

Abstract: Here, remarkable acetylene/carbon dioxide separation featuring a high dynamic breakthrough capacity foracetylene clusters through hydrogen bonds and intermolecular interactions, which afforded a high acetylene capacity

Keywords： adsorption     acetylene/carbon dioxide separation     dynamic capacity     anion-pillared hybrid material    

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Buffer capacity of granular matter to impact of spherical projectile based on discrete element method

Ying YAN, Pengfei LI, Shunying JI

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1,   Pages 50-54 doi: 10.1007/s11709-013-0186-x

Abstract: To investigate the impact-absorbing capacity of granular matter, the discrete element method (DEM) is

Keywords： granular matter     impact peak     buffer capacity     discrete element method     critical thickness    

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Dynamic simulation of urban water metabolism under water environmental carrying capacity restrictions

Weihua ZENG,Bo WU,Ying CHAI

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 1,   Pages 114-128 doi: 10.1007/s11783-014-0669-6

Abstract: Feedback loops can be analyzed to increase the water environmental carrying capacity (WECC) of the new

Keywords： urban water metabolism system (UWMS)     system dynamic simulation     water environmental carrying capacity    

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Polypropylene microplastics alter the cadmium adsorption capacity on different soil solid fractions

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 1,   Pages 3-3 doi: 10.1007/s11783-021-1437-z

Abstract:

Microplastics (MPs) are widely present in a variety of environmental media and have attracted more and more attention worldwide. However, the effect of MPs on the interaction between heavy metals and soil, especially in soil solid fraction level, is not well understood. In this study, batch experiments were performed to investigate the adsorption characteristics of Cd in bulk soil and three soil solid fractions (i.e. particulate organo matter (POM), organic-mineral compounds (OMC), and mineral) with or without polypropylene (PP) MPs.

Keywords： Polypropylene microplastics     Cadmium     Adsorption     POM     OMC     Mineral    

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Research on the valveless piezoelectric pump with Y-shape pipes

ZHANG Jianhui, LU Jizhuang, XIA Qixiao

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 2,   Pages 144-151 doi: 10.1007/s11465-007-0024-8

Abstract: mean pressure in the chamber are established, as well as the relation between the flow rate and the workingMoreover, the relation between the mean pressure in the chamber and the working frequency of the piezoelectric

Keywords： chamber serving     beneficial     working frequency     long-link     correction    

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Title Author Date Type Operation

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

Baochen WEI, Feng GAO

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

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

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

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

Jinxin ZHONG, Congliang HUANG

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

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

Working Up Green, and Living Up Green

Ji-shan He

Journal Article

Working Procedure of Developing a New Deep Hard-rock Burst-prone Deposit

Guo Ran,Yu Runcang

Journal Article

The Research of the Working Parameter Adjustment Principle and Control Strategy on Hydraulic Impact Machine

Liu Zhong,,Chu Fulei,Long Guojian,Liao Yongzhong

Journal Article

Efficient acetylene/carbon dioxide separation with excellent dynamic capacity and low regeneration energy

Journal Article

Buffer capacity of granular matter to impact of spherical projectile based on discrete element method

Ying YAN, Pengfei LI, Shunying JI

Journal Article

Dynamic simulation of urban water metabolism under water environmental carrying capacity restrictions

Weihua ZENG,Bo WU,Ying CHAI

Journal Article

Polypropylene microplastics alter the cadmium adsorption capacity on different soil solid fractions

Journal Article

Research on the valveless piezoelectric pump with Y-shape pipes

ZHANG Jianhui, LU Jizhuang, XIA Qixiao

Journal Article