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Microenvironmental time-activity patterns in Chongqing, China

Yu ZHAO, Shuxiao WANG, Gangcai CHEN, Fei WANG, Kristin AUNAN, Jiming HAO

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 2,   Pages 200-209 doi: 10.1007/s11783-009-0010-y

Abstract: The time budget was analyzed using a general linear model (GLM), which exhibited significant variability

Keywords： time-activity patterns     microenvironment     general linear model (GLM)     Chongqing     China    

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General expression for linear and nonlinear time series models

Ren HUANG, Feiyun XU, Ruwen CHEN

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1,   Pages 15-24 doi: 10.1007/s11465-009-0015-z

Abstract: such as ARMA, AR, and MA are founded on the normality and stationarity of a system and expressed by a lineardifference equation; therefore, they are strictly limited to the linear system.This paper proposes a general expression for linear and nonlinear auto-regressive time series modelsThe model simulation and experiments show that the GNAR model can accurately approximate to the dynamicThe proposed GNAR model is flexible and effective.

Keywords： linear and nonlinear     autoregressive model     system identification     time series analysis    

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Scaled boundary finite element method with exact defining curves for two-dimensional linear multi-field

Jaroon RUNGAMORNRAT, Chung Nguyen VAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 201-214 doi: 10.1007/s11709-018-0488-0

Abstract: technique based upon the scaled boundary finite element method for the analysis of two-dimensional, linearThe scaled boundary finite element formulation is established in a general framework allowing single-fieldand multi-field problems, bounded and unbounded bodies, distributed body source, and general boundarythen fully investigated for various scenarios to demonstrate the accuracy in comparison with standard linear

Keywords： multi-field problems     defining curve     exact geometry     general boundary conditions     SBFEM    

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Comparison between linear and non-linear forms of pseudo-first-order and pseudo-second-order adsorption

Junxiong LIN , Lan WANG ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3,   Pages 320-324 doi: 10.1007/s11783-009-0030-7

Abstract: The best-fit equations of linear and non-linear forms of the two widely used kinetic models, namely pseudo-first-orderThe results show that the non-linear forms of pseudo-first-order and pseudo-second-order models weremore suitable than the linear forms for fitting the experimental data.The experimental kinetics may have been distorted by linearization of the linear kinetic equations, andIn addition, the Δ(%) method for error analysis may be better to determine the best-fitting model

Keywords： adsorption     pseudo-first order     pseudo-second order     kinetic model     linear method     non-linear method    

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Cutting CO emissions through demand side regulation: Implications from multi-regional input–output linearprogramming model

Frontiers of Engineering Management   Pages 452-461 doi: 10.1007/s42524-022-0209-1

Abstract: This study combines multi-regional input–output (MRIO) model with linear programming (LP) model to exploreThe proposed MRIO–LP model considers the inter-relationship among various sectors and

Keywords： CO2 emissions     demand side regulation     multi-regional input–output model     linear programmingmodel    

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Model reduction techniques for dynamics analysis of ultra-precision linear stage

Xuedong CHEN, Zhixin LI

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1,   Pages 64-70 doi: 10.1007/s11465-009-0009-x

Abstract: Spring-damping elements are used to simplify the internal interaction in the proposed finite element (FE) modelof an ultra-precision linear stage., which can be generalized to the development and dynamics characteristic study of a complex system model

Keywords： dynamics analysis     air-bearing     linear stage     reduction    

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Linear and nonlinear elastic analysis of closely spaced strip foundations using Pasternak model

Priyanka GHOSH, S. RAJESH, J. SAI CHAND

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 2,   Pages 228-243 doi: 10.1007/s11709-016-0370-x

Abstract: attempt is made to determine the interaction effect of two closely spaced strip footings using Pasternak modelThe study considers small strain problem and has been performed using linear as well as nonlinear elasticThe linear elastic analysis has been carried out by deriving the equations for the interference effectof the footings in the framework of Pasternak model equation; whereas, the nonlinear elastic analysisdifference method to solve the second order nonlinear differential equation evolved from Pasternak model

Keywords： bearing capacity     linear and non-linear elasticity     foundation     interaction effect     numerical modeling     Pasternakmodel    

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Design and modeling of a free-piston engine generator

Frontiers in Energy   Pages 811-821 doi: 10.1007/s11708-022-0848-2

Abstract: In this paper, a parameter-decoupling approach is proposed to model the design of an FPEG.first divides the FPEG into three parts: a two-stroke engine, an integrated scavenging pump, and a linearA finite element model with a multi-objective genetic algorithm was adopted for its design.The finite element model results were fed back to the numerical model to update the LPMSM with increasedThe model provides a solid foundation for the manufacturing of related FPEG prototypes.

Keywords： free-piston engine generator     linear permanent magnet synchronous machine     system design     numerical model    

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Low complexity robust adaptive beamforming for general-rank signal model with positive semidefinite constraint Article

Yu-tang ZHU,Yong-bo ZHAO,Jun LIU,Peng-lang SHUI

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 11,   Pages 1245-1252 doi: 10.1631/FITEE.1601112

Abstract: We propose a low complexity robust beamforming method for the general-rank signal model, to combat against

Keywords： Beamforming     General-rank     Low complexity     Positive semidefinite (PSD) constraint     Model mismatches    

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Creep and recovery behaviors of magnetorheological elastomers

Weihua LI, Yang ZHOU, Tongfei TIAN, Gursel ALICI,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 3,   Pages 341-346 doi: 10.1007/s11465-010-0096-8

Abstract: The experimental results demonstrated that MREs behave as linear visocleastic properties.Moreover, a four-parameter viscoelastic model was developed to describe MRE creep behaviors.The comparison between the experimental results and the modeling predictions indicates that the model

Keywords： magneto-rheological elastomers (MREs)     creep     recovery     linear viscoelastic model    

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Design and analysis of linear oscillating motor for linear pump application-magnetic field, dynamics

Zongxia JIAO,Tianyi WANG,Liang YAN

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 4,   Pages 351-362 doi: 10.1007/s11465-016-0407-9

Abstract:

A linear oscillating motor is an electromagnetic actuator that can achieve short-stroke reciprocatingIt has been widely used in linear pump applications as the source of power and motion.However, because of the demand of high power density in a linear actuation system, the performance ofIn this paper, a general framework of linear oscillating motor design and optimization is addressed inlinear pump applications.

Keywords： linear oscillating motor     linear pump     magnetic field     motor optimization    

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A novel intravenous general anesthetic--- emulsified isoflurane: from bench to bedside

Cheng Zhou, Jin Liu

Frontiers of Medicine 2012, Volume 6, Issue 4,   Pages 381-387 doi: 10.1007/s11684-012-0229-z

Abstract: Emulsified isoflurane, the emulsion of isoflurane, is a novel intravenous general anesthetic.development of emulsified isoflurane in the past fifteen years, its utility has spread from intravenous general

Keywords： emulsified isoflurane (EI)     general anesthesia     regional anesthesia     organ protection     anesthetic pharmacological    

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A maximum reliable network interdiction model with limited resources

Zhao Jia and Yu Hua

Strategic Study of CAE 2015, Volume 17, Issue 1,   Pages 137-142

Abstract:

This paper proposes a maximum reliable network interdiction model， which is to maximize the reliability， the number of paths between any given two nodes is exponential to the size of this graph， so this modelbilevel integer program by finding out the relationship between the lower level integer program and its linear

Keywords： interdiction model；k-reliability； duality； linear programming relaxation； complementary slackness    

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Numerical investigation of circle defining curve for two-dimensional problem with general boundaries

Chung Nguyen VAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 92-102 doi: 10.1007/s11709-018-0472-8

Abstract: The scaled boundary finite element equations is formulated within a general framework integrating theinfluence of the distributed body force, general boundary conditions, and bounded and unbounded domainThree linear elasticity problems are presented to verify the proposed method with the analytical solutionand efficiency of the proposed method, and the performance is found to be better than using standard linear

Keywords： exact geometry     circular defining curve     general boundaries     SBFEM    

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Microdamage study of granite under thermomechanical coupling based on the particle flow code

Frontiers of Structural and Civil Engineering   Pages 1413-1427 doi: 10.1007/s11709-023-0953-2

Abstract: In this study, an improved temperature-dependent linear parallel bond model is introduced under the frameworkthermomechanical coupling tests are then conducted to calibrate the micro-parameters of the proposed modelWith this improved model, the thermodynamic response and underlying cracking behavior of a deep-buried

Keywords： thermomechanical coupling effect     granite     improved linear parallel bond model     thermal property     particle    

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Title Author Date Type Operation

Microenvironmental time-activity patterns in Chongqing, China

Yu ZHAO, Shuxiao WANG, Gangcai CHEN, Fei WANG, Kristin AUNAN, Jiming HAO

Journal Article

General expression for linear and nonlinear time series models

Ren HUANG, Feiyun XU, Ruwen CHEN

Journal Article

Scaled boundary finite element method with exact defining curves for two-dimensional linear multi-field

Jaroon RUNGAMORNRAT, Chung Nguyen VAN

Journal Article

Comparison between linear and non-linear forms of pseudo-first-order and pseudo-second-order adsorption

Junxiong LIN , Lan WANG ,

Journal Article

Cutting CO emissions through demand side regulation: Implications from multi-regional input–output linearprogramming model

Journal Article

Model reduction techniques for dynamics analysis of ultra-precision linear stage

Xuedong CHEN, Zhixin LI

Journal Article

Linear and nonlinear elastic analysis of closely spaced strip foundations using Pasternak model

Priyanka GHOSH, S. RAJESH, J. SAI CHAND

Journal Article

Design and modeling of a free-piston engine generator

Journal Article

Low complexity robust adaptive beamforming for general-rank signal model with positive semidefinite constraint

Yu-tang ZHU,Yong-bo ZHAO,Jun LIU,Peng-lang SHUI

Journal Article

Creep and recovery behaviors of magnetorheological elastomers

Weihua LI, Yang ZHOU, Tongfei TIAN, Gursel ALICI,

Journal Article

Design and analysis of linear oscillating motor for linear pump application-magnetic field, dynamics

Zongxia JIAO,Tianyi WANG,Liang YAN

Journal Article

A novel intravenous general anesthetic--- emulsified isoflurane: from bench to bedside

Cheng Zhou, Jin Liu

Journal Article

A maximum reliable network interdiction model with limited resources

Zhao Jia and Yu Hua

Journal Article

Numerical investigation of circle defining curve for two-dimensional problem with general boundaries

Chung Nguyen VAN

Journal Article

Microdamage study of granite under thermomechanical coupling based on the particle flow code

Journal Article