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Top 10 Influential Events in carbon neutrality and climate change response for 2023

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Frontiers in Energy 2024年第1期18卷 1-3页

作者： Research Institute of Carbon Neutrality of Shanghai jiao tong university Research Institute of Carbon Neutrality Shanghai Jiao Tong UniversityShanghai 200240China

In 2023, the global community intensified its efforts towards achieving carbon neutrality and addressing climate change, witnessing several impactful events. Research Institute of Carbon Neutrality, Shanghai jiao tong university compiled the Top 10 Events (in chronological order) in the field of global carbon neutrality and climate change response for 2023, to share with readers these significant moments that document the ongoing ambition and collective efforts of human society.

关键词： neutral collective intensified

GAME THEORY STUDY OF CURRENCY SPECULATION IN FINANCIAL MARKET

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GAME THEORY STUDY OF CURRENCY SPECULATION IN FINANCIAL MARKE...

2006年国际电子、工程及科学领域的分布式计算和应用学术研讨会

作者： Ying Liu School of Economics and Management,beijing jiao tong university beijing China ShuJun Ye School of Economics and Management,beijing jiao tong university beijing China

To guard from the risk of currency speculation,the course of currency speculation in the financial market was studied,in which the speculators’ target was the countries with strict exchange rate *** Incomplete Information Dynamic Game Theory was applied to study the game between the government and the *** Complete Information Static Game,Boxed Pigs Game and Evolutionary Game Theory were applied to study the game among *** Nash Equilibrium solution was *** reason was analyzed that why there were different results among speculators who had attacked Pound and Hong Kong *** is that the speculators succeed in the countries whose economy goes unsteady and the nominal currency value does not equal the actual currency *** controls the exchange rate strictly as well but will open its capital market and then RMB can exchange *** this,the risk of currency speculation will increase *** aim of above analysis is to enlighten the Chinese exchange rate system and economy operation.

关键词： Currency Speculation Game Theory Nash Equilibrium Sheep Effect Exchange Rate System

THE RESEARCH ON MPPT INTELLIGENT SOLAR CHARGING SYSTEM

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THE RESEARCH ON MPPT INTELLIGENT SOLAR CHARGING SYSTEM

2007世界太阳能大会：太阳能与人类居住

作者： Wang Xiaocong Shen Qiang beijing jiao tong university School of Mechanical and Electronic Engineering Shang Yuan Street No.3(jiao tong Univ.Road) beijing China

＜正＞Solar photovoltaic（PV）power system applications are increasing due to both technology and economic factors. For each specific atmospheric condition there is a specific voltage value in which maximum power is *** the Maximum Power Point tracking and control system is *** Power Converter Design,as is described in this paper,can successfully adjust the equivalent input resistance and the working point to the value which is equal to the solar cell’s optimum *** new design not only uses the"closed-loop control-system"creatively,and brings in various methods as well,such as"disturbance observation"-adjusting the Voltage to gain the maximum *** power converter design also further develops the algorithm to some *** can also use the working voltage as the effective feedback to help us stable the cell’s operating point effectively.

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A Theoretical Study on the Models of Knowledge Transfer in Strategic Alliance（ID:J-008）

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A Theoretical Study on the Models of Knowledge Transfer in S...

第十四届工业工程与工程管理国际会议

作者： Tan Jie Zhang Rui-ping Center of Infrastructure Research beijing jiao tong university beijing P.R.China 100081

＜正＞Through summing up the outcome of research on knowledge transfer in strategic alliances,the paper presents four kinds of knowledge transfer model in strategic alliances,then discusses the issue on choosing these... 详细信息

关键词： Strategic Alliances Knowledge Transfer Knowledge Management

Optimal retrofitting scenarios of multi-objective energy-efficient historic building under different national goals integrating energy simulation,reduced order modelling and NSGA-II algorithm

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Building Simulation 2024年第6期17卷 933-954页

作者： Hailu Wei Yuanhao jiao Zhe Wang Wei Wang tong Zhang School of Architecture Southeast UniversityNanjingJiangsu Province210096China Key Laboratory of Urban and Architectural Heritage Conservation(Southeast university) Ministry of EducationNanjingChina Department of Civil and Environmental Engineering The Hong Kong University of Science and TechnologyHong KongChina HKUST Shenzhen-Hong Kong Collaborative Innovation Research Institute FutianShenzhenChina

Retrofitting a historic building under different national goals involves multiple objectives,constraints,and numerous potential measures and packages,therefore it is time-consuming and challenging during the early design *** study introduces a systematic retrofitting approach that incorporates standard measures for the building envelope(walls,windows,roof),as well as the heating,cooling,and lighting *** retrofit objectives are delineated based on prevailing Chinese *** retrofit measures function as genes to optimize energy-savings,carbon emissions,and net present value(NPV)by employing a log-additive decomposition approach through energy simulation techniques and NSGA-II,yielding 185,163,and 8 ***,a weighted sum method is proposed to derive optimal solutions across multiple *** framework is applied to a courtyard building in Nanjing,China,and the outcomes of the implementation are scrutinized to ascertain the optimal retrofit package under various *** this retrofit,energy consumption can be diminished by up to 63.62%,resulting in an NPV growth of 151.84%,and maximum rate of 60.48%carbon *** three result values not only indicate that the optimal values are achieved in these three aspects of energy saving,carbon reduction and economy,but also show the possibility of possible equilibrium in this multi-objective optimization *** framework proposed in this study effectively addresses the multi-objective optimization challenge in building renovation by employing a reliable optimization algorithm with a computationally efficient reduced-order *** provides valuable insights and recommendations for optimizing energy retrofit strategies and meeting various performance objectives.

关键词： historic building energy-efficient retrofitting building energy simulation log-additive decomposition approach NSGA-II

Experimental study of a single-cylinder engine fuelled with natural gas-hydrogen mixtures

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Experimental study of a single-cylinder engine fuelled with ...

第九届全国氢能学术会议

作者： J.Xu,X.Zhang,J.H.Liu beijing jiao tong university,China

＜正＞The objective of this study is to evaluate the power,efficiency and emissions of an electronic-controlled single-cylinder engine fuelled with pure natural gas and natural gas-hydrogen blends,*** using the orthogonal tests method,a range of engine conditions were *** results show that under certain engine conditions the

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ANALYSIS ON SHEAR STRENGTH-FABRIC RELATIONSHIP FOR UNSATURATED GRANULAR SOILS

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ANALYSIS ON SHEAR STRENGTH-FABRIC RELATIONSHIP FOR UNSATURAT...

岩石力学与工程的创新和实践：第十一次全国岩石力学与工程学术大会

作者： Zhang Wei-hua,Zhao Cheng-gang~1 (School of Civil Engineering,beijing jiao-tong university,beijing 100044 P.R.China)

Based on micromechanics,this paper establishes the relationship between shear strength and fabric for unsaturated pendular-state granular soils,and some conclusions can be made:The two internal frictional anglesφandφ at critical state are all strength parameters related to the frictional characteristic of the interparticle contacts,which is intrinsic properties of the soil,the former is the sum of three contributions representing anisotropics in contact orientations,average normal and tangential forces,and the latter is directly related to the contact normals and independent of capillary ***,DEM numerical simulations of triaxial compression tests at different degrees of saturation in pendular state are used to verify the conclusion.

关键词： unsaturated granular soils pendular state fabric shear strength internal friction angle anisotropy

Three-dimensional numerical manifold method for heat conduction problems with a simplex integral on the boundary

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Science China(Technological Sciences) 2024年第4期67卷 1007-1022页

作者： tong DeFu YI XiongWei TAN Fei jiao YuYong LIANG JiaWei Faculty of Engineering China University of GeoscienceWuhan 430074China Department of Civil Engineering Monash UniversityMelbourne VIC 3800Australia Badong National Observation and Research Station of Geohazards China University of GeoscienceWuhan 430074China

The three-dimensional numerical manifold method(3D-NMM),which is based on the derivation of Galerkin's variation,is a powerful calculation tool that uses two cover *** 3D-NMM can be used to handle continue-discontinue problems and extend to THM *** this study,we extended the 3D-NMM to simulate both steady-state and transient heat conduction *** modelling was carried out using the raster methods(RSM).For the system equation,a variational method was employed to drive the discrete equations,and the crucial boundary conditions were solved using the penalty *** solve the boundary integral problem,the face integral of scalar fields and two-dimensional simplex integration were used to accurately describe the integral on polygonal *** numerical examples were used to verify the results of 3D steady-state and transient heat-conduction *** numerical results indicated that the 3D-NMM is effective for handling 3D both steadystate and transient heat conduction problems with high solution accuracy.

关键词： three-dimensional numerical manifold method transient analysis heat conduction problem Galerkin variation simplex integration

Modeling Communications-Based Train Control System:A Case Study

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Modeling Communications-Based Train Control System:A Case St...

2010 The 2nd International Conference on Industrial Mechatronics and Automation (ICIMA 2010)

作者： Haifeng WANG1 1School of Electronic and Information Engineering beijing jiaotong university beijing 100044 China Shuo LIU2 2Engineering Research Center of Rail Traffic Control beijing jiao tong university beijing 100044 China

CBTC （Communications Based Train Control） system is a complex hybrid railway application with safety critical *** this paper,a 3-level hierarchy modeling approach was proposed to address the issue of describing train control for the CBTC system *** system functions were abstracted as top level functional model based on continuous data flow,train behavior was modeled using discrete state machine in the second level,and the control action was described as continuous data flow in the lowest *** SCADE,a case study of CBTC subsystem,Zone Controller,was presented to illustrate the *** result shows that the approach offers a rigorous description to CBTC system development;it is helpful to improve system quality.

关键词： CBTC safety critical model-based development hybrid system hierarchy modeling