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Modeling and analysis of steady-state vibration induced by backlash in servo rotary table

Xiao YANG,Dun LU,Sanli LIU,Jun ZHANG,Wanhua ZHAO

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 1,   Pages 43-47 doi: 10.1007/s11465-015-0327-0

Abstract: Steady-state vibration may be induced by backlash in closed loop feed drive systems.such as position controller gain, velocity controller gain, load and the magnitude of backlash, on steady-stateThe steady-state vibration amplitude increases with the position controller gain, load and the magnitudeThe steady-state vibration frequency increases with the position controller gain and the velocity controller

Keywords： backlash     servo rotary table     steady-state vibration    

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Automated synthesis of steady-state continuous processes using reinforcement learning

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 2,   Pages 288-302 doi: 10.1007/s11705-021-2055-9

Abstract: The environment consists of a steady-state flowsheet simulator that contains all physical knowledge.

Keywords： automated process synthesis     flowsheet synthesis     artificial intelligence     machine learning     reinforcement learning    

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Steady-state thermal-hydraulic analysis of SCWR assembly

LIU Xiaojing, CHENG Xu

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 475-478 doi: 10.1007/s11708-008-0093-3

Abstract: A thermal-hydraulic analysis of the SCWR assembly is performed in this paper using the modified COBRA-IV

Keywords： cladding temperature     assembly     temperature     coolant     resistance    

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Effect of dilution rate on dynamic and steady-state biofilm characteristics during phenol biodegradation

Veena Bangalore Rangappa, Vidya Shetty Kodialbail, Saidutta Malur Bharthaiyengar

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0863-9

Abstract: Dynamic and steady state biofilm characteristics depend on dilution rate (DR).Thus, the performance of PPBR in terms of dynamic and steady-state biofilm characteristics associated

Keywords： Biofilm     Exopolymeric substances     Phenol     Dilution rate     Pulsed plate bioreactor    

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A High Accurate Steady-state Physical Model for High-voltage VDMOS

Bao Jiaming,Sun Weifeng,Zhao Ye,Lu Shengli

Strategic Study of CAE 2008, Volume 10, Issue 2,   Pages 72-78

Abstract:

A high accurate steady-state physical model for high-voltage VDMOS is

Keywords： VDMOS     steady-state physical model     analytical method    

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An improved delta-star switching scheme for reactive power saving in three-phase induction motors

P. RAJA,N. KUMARESAN,M. SUBBIAH

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 364-370 doi: 10.1007/s11708-014-0324-8

Abstract: It is proposed that a capacitor can be connected permanently across each phase winding of a three-phase induction motor along with the conventional delta-star switching, for further saving in VARh at reduced loads on the motor. The method of choosing a suitable value for the capacitor and the criteria to be adopted for calculating the power output at which the star to delta switching is to be made are also explained. The experimental results on a 3-phase, 4-pole, 415 V, 50 Hz, 3.3 kW induction motor verify the advantages in adding the capacitor to the phase winding of the motor. Compared to using only a single delta connected stator winding or a delta-star switching, the advantages of the proposed addition of a capacitor, are also demonstrated through a case study conducted on a 400 V, 250 kW motor. Any further improvement in grid side power factor can be achieved by employing a static synchronous compensator (STATCOM) of reduced VAR rating.

Keywords： delta-star switching     induction motor     power factor     steady-state analysis    

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Influence of initial curing conditions and exposure environments on chloride migration in concrete using electrochemical method

Wen XUE, Weiliang JIN, Hiroshi YOKOTA,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 3,   Pages 348-353 doi: 10.1007/s11709-010-0077-3

Abstract: The effective chloride diffusion coefficients () were calculated from the steady-state on the basis of

Keywords： durability     effective diffusion coefficient     steady-state     migration test    

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A numerical study of helium-heated inorganic membrane reformer coupling to HTGR

YIN Huaqiang, JIANG Shengyao, JU Huaiming, ZHANG Youjie

Frontiers in Energy 2007, Volume 1, Issue 4,   Pages 446-450 doi: 10.1007/s11708-007-0065-3

Abstract: Based on one-dimensional quasi-homogeneous model, a steady-state model and its computer program were

Keywords： temperature gas-cooled     one-dimensional quasi-homogeneous     steady-state     helium-heated    

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Analysis and control of wind-driven self-excited induction generators connected to the grid through power

S. Senthil KUMAR, N. KUMARESAN, N. Ammasai GOUNDEN, Namani RAKESH

Frontiers in Energy 2012, Volume 6, Issue 4,   Pages 403-412 doi: 10.1007/s11708-012-0208-8

Abstract: The analysis of the wind-driven self-excited induction generators (SEIGs) connected to the grid throughFor this analysis, a method of representing the grid power as equivalent load resistance in the steady-stateThe technique of genetic algorithm (GA) has been adopted for making the analysis of the proposed systemThe effectiveness of the proposed method of MPPT and method of analysis of this wind-driven SEIG-converterand simulated results confirm the usefulness and successful working of the proposed system and its analysis

Keywords： induction generator (SEIG)     renewable power generation     power converters     maximum power point tracking (MPPT)     steadystate analysis     power generation systems    

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Development of a steady thermal-hydraulic analysis code for the China Advanced Research Reactor

TIAN Wenxi, QIU Suizheng, GUO Yun, SU Guanghui, JIA Dounan, LIU Tiancai, ZHANG Jianwei

Frontiers in Energy 2007, Volume 1, Issue 2,   Pages 189-194 doi: 10.1007/s00000-007-0024-8

Abstract: A multi-channel model steady-state thermal-hydraulic analysis code was developed for the China Advancedunsymmetrical cooling condition was also obtained, which is necessary for further study such as stress analysis

Keywords： detailed     calculation     unsymmetrical     temperature     channel    

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Coulomb-type solutions for passive earth pressure with steady seepage

WANG Junjie, CHAI Hejun, LIN Xin, XU Jiamei

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 1,   Pages 56-66 doi: 10.1007/s11709-008-0001-2

Abstract: The basic assumptions of Coulomb’s theory and the 2-dimensional steady flow function are used.

Keywords： function     coefficient     Coulomb-type     effective friction     different drainage    

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Effectiveness of state incentives for promoting wind energy: A panel data examination

Deepak SANGROYA,Jogendra NAYAK

Frontiers in Energy 2015, Volume 9, Issue 3,   Pages 247-258 doi: 10.1007/s11708-015-0364-8

Abstract: The Indian government, as well as different state governments, are adopting policy instruments such asThis paper evaluates the effectiveness of state level incentives for the development of wind energy inFixed effect panel data modelling technique of econometric analysis is used to analyse the data of 26

Keywords： India     wind energy development     state incentives     econometric analysis     panel data    

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Effect of steady shear on multi-axial texture of symmetric diblock copolymers

XU Hui, LIU Honglai, HU Ying

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 1,   Pages 26-34 doi: 10.1007/s11705-007-0006-8

Abstract: The effect of steady shear on multi-axial texture of symmetric diblock copolymer was investigated by
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3D fracture modelling and limit state analysis of prestressed composite concrete pipes

Pengfei HE, Yang SHEN, Yun GU, Pangyong SHEN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 165-175 doi: 10.1007/s11709-018-0484-4

Abstract: In this manuscript, we study fracture of prestressed cylindrical concrete pipes. Such concrete pipes play a major role in tunneling and underground engineering. The structure is modelled fully in 3D using three-dimensional continuum elements for the concrete structure which beam elements are employed to model the reinforcement. This allows the method to capture important phenomena compared to a pure shell model of concrete. A continuous approach to fracture is chosen when concrete is subjected to compressive loading while a combined continuous-discrete fracture method is employed in tension. The model is validated through comparisons with experimental data.

Keywords： cylindrical concrete structures     limit state analysis     3D fracture modelling     prestressed composite pipes    

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New model of load transfer function for pile analysis based on disturbed state model

LIU Qijian, YANG Linde, WU Jun

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 4,   Pages 443-447 doi: 10.1007/s11709-007-0060-9

Abstract: Based on the disturbed state concept (DSC), a new model of load transfer function for pile analysis ispile and soil can be treated as a mixture of two constituent parts, which are in intact or critical stateIn the model, shear intensity of elements in an intact state are simulated by Duncan-Zhang model andthat in a critical state by Mohr-Coulomb criterion.

Keywords： hardening     homogenization     displacement     engineering     Duncan-Zhang    

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Title Author Date Type Operation

Modeling and analysis of steady-state vibration induced by backlash in servo rotary table

Xiao YANG,Dun LU,Sanli LIU,Jun ZHANG,Wanhua ZHAO

Journal Article

Automated synthesis of steady-state continuous processes using reinforcement learning

Journal Article

Steady-state thermal-hydraulic analysis of SCWR assembly

LIU Xiaojing, CHENG Xu

Journal Article

Effect of dilution rate on dynamic and steady-state biofilm characteristics during phenol biodegradation

Veena Bangalore Rangappa, Vidya Shetty Kodialbail, Saidutta Malur Bharthaiyengar

Journal Article

A High Accurate Steady-state Physical Model for High-voltage VDMOS

Bao Jiaming,Sun Weifeng,Zhao Ye,Lu Shengli

Journal Article

An improved delta-star switching scheme for reactive power saving in three-phase induction motors

P. RAJA,N. KUMARESAN,M. SUBBIAH

Journal Article

Influence of initial curing conditions and exposure environments on chloride migration in concrete using electrochemical method

Wen XUE, Weiliang JIN, Hiroshi YOKOTA,

Journal Article

A numerical study of helium-heated inorganic membrane reformer coupling to HTGR

YIN Huaqiang, JIANG Shengyao, JU Huaiming, ZHANG Youjie

Journal Article

Analysis and control of wind-driven self-excited induction generators connected to the grid through power

S. Senthil KUMAR, N. KUMARESAN, N. Ammasai GOUNDEN, Namani RAKESH

Journal Article

Development of a steady thermal-hydraulic analysis code for the China Advanced Research Reactor

TIAN Wenxi, QIU Suizheng, GUO Yun, SU Guanghui, JIA Dounan, LIU Tiancai, ZHANG Jianwei

Journal Article

Coulomb-type solutions for passive earth pressure with steady seepage

WANG Junjie, CHAI Hejun, LIN Xin, XU Jiamei

Journal Article

Effectiveness of state incentives for promoting wind energy: A panel data examination

Deepak SANGROYA,Jogendra NAYAK

Journal Article

Effect of steady shear on multi-axial texture of symmetric diblock copolymers

XU Hui, LIU Honglai, HU Ying

Journal Article

3D fracture modelling and limit state analysis of prestressed composite concrete pipes

Pengfei HE, Yang SHEN, Yun GU, Pangyong SHEN

Journal Article

New model of load transfer function for pile analysis based on disturbed state model

LIU Qijian, YANG Linde, WU Jun

Journal Article