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Deep reinforcement learning-based critical element identification and demolition planning of frame structures

Frontiers of Structural and Civil Engineering   Pages 1397-1414 doi: 10.1007/s11709-022-0860-y

Abstract: This paper proposes a framework for critical element identification and demolition planning of frame structures. Innovative quantitative indices considering the severity of the ultimate collapse scenario are proposed using reinforcement learning and graph embedding. The action is defined as removing an element, and the state is described by integrating the joint and element features into a comprehensive feature vector for each element. By establishing the policy network, the agent outputs the Q value for each action after observing the state. Through numerical examples, it is confirmed that the trained agent can provide an accurate estimation of the Q values, and handle problems with different action spaces owing to utilization of graph embedding. Besides, different behaviors can be learned by varying hyperparameters in the reward function. By comparing the proposed method and the conventional sensitivity index-based methods, it is demonstrated that the computational cost is considerably reduced because the reinforcement learning model is trained offline. Besides, it is proved that the Q values produced by the reinforcement learning agent can make up for the deficiencies of existing indices, and can be directly used as the quantitative index for the decision-making for determining the most expected collapse scenario, i.e., the sequence of element removals.

Keywords： progressive collapse     alternate load path     demolition planning     reinforcement learning     graph embedding    

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Investigation on a mitigation scheme to resist the progressive collapse of reinforced concrete buildings

Iman TABAEYE IZADI, Abdolrasoul RANJBARAN

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 4,   Pages 421-430 doi: 10.1007/s11709-012-0181-7

Abstract: Saeed Alrudaini to provide the alternate load path to redistribute residual loads and preventing from

Keywords： prevent progressive collapse     alternate load path     reinforced concrete buildings     nonlinear dynamic     retrofitting    

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Finding buckling points for nonlinear structures by dynamic relaxation scheme

Mohammad REZAIEE-PAJAND, Hossein ESTIRI

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 1,   Pages 23-61 doi: 10.1007/s11709-019-0549-z

Abstract: By using DRM for nonlinear analysis, the structural static equilibrium path is obtained.Among the finding related to the structural static path are the critical and buckling points for nonlinearIn this paper, a new way for calculating the load factor is proposed by setting the external work zeroThis sign leads to increase or decrease of the load increment.It is worth emphasizing that sign of the load factor increment changes at the load limit points.

Keywords： load factor     external work     dynamic relaxation     static equilibrium path     large displacement    

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Efficientmesh denoising via robust normal filtering and alternate vertex updating Article

Tao LI, Jun WANG, Hao LIU, Li-gang LIU

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 11,   Pages 1828-1842 doi: 10.1631/FITEE.1601229

Abstract: Based on the robust guided normal estimation and alternate vertex updating strategy, we investigate a

Keywords： Mesh denoising     Guided normal filtering     Alternate vertex updating     Corner-aware neighborhoods    

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Ion conduction path in composite solid electrolytes for lithium metal batteries: from polymer rich to

Frontiers in Energy   Pages 706-733 doi: 10.1007/s11708-022-0833-9

Abstract: advances and limitations of both PR and CR electrolytes, with a special focus on the ion conduction path

Keywords： composite solid electrolytes     active filler/framework     ion conduction path     interphase compatibility    

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Estimation of composite load model with aggregate induction motor dynamic load for an isolated hybrid

Nitin Kumar SAXENA,Ashwani Kumar SHARMA

Frontiers in Energy 2015, Volume 9, Issue 4,   Pages 472-485 doi: 10.1007/s11708-015-0373-7

Abstract: The composite load is a combination of the static and dynamic load model.To develop this composite load model, the exponential load is used as a static load model and inductionmotors (IMs) are used as a dynamic load model.This aggregate model is used as a dynamic load model.exponential model of static load and for the fifth and third order IM dynamic load model using state

Keywords： isolated hybrid power system (IHPS)     composite load model     static load     dynamic load     induction motor loadmodel     aggregate load    

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The Path Dependence of Chinese Corporate Governance——Theoretical and Positive Analysis

Bing Hongyan

Strategic Study of Chinese Academy of Engineering 2004, Volume 6, Issue 2,   Pages 82-87

Abstract:

Building on reviewing the theories of path dependence, this paper analyses the two sources of thepath dependence of corporate governance, i. e.Structure-driven path dependence and rule-driven path dependence,and reveals the effect of the path dependencepaper analyses the developing process of Chinese corporate governance, and points out three kinds of path

Keywords： Chinese corporate governance     path dependence     structure-driven path dependence     rule-driven path dependence    

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Innovative development path of ethnomedicines: the interpretation of the path

Zhaoyun Zhu,Dehuan Fu,Yali Gui,Tao Cui,Jingkun Wang,Ting Wang,Zhizhong Yang,Yanfei Niu,Zhennan She,Li Wang

Frontiers of Medicine 2017, Volume 11, Issue 1,   Pages 32-47 doi: 10.1007/s11684-016-0495-2

Abstract: The innovative development path of ethnomedicines includes the following three primary stages: resourceThe implementation of this path is always guaranteed by the research and development platform and thethinking, methods, contents, and technical paths involved in all stages of the innovative development path

Keywords： ethnomedicines     innovative development path     resource study     standardized development research     industrialization    

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Extended model predictive control scheme for smooth path following of autonomous vehicles

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 1,   Pages 4-4 doi: 10.1007/s11465-021-0660-4

Abstract: This paper presents an extended model predictive control (MPC) scheme for implementing optimal path followingmethod solved by differential evolution optimization algorithm is proposed to realize optimal smooth pathfollowing based on driving path features.Results indicate that the proposed method can obtain the smooth transition to follow the optimal drivable pathand satisfy the lateral dynamic stability and environmental constraints, which can improve the path

Keywords： autonomous vehicles     vehicle dynamic modeling     model predictive control     path following     optimization    

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Innovative development path of ethnomedicines: an overview of ethnomedicines in China

Zhaoyun Zhu,Ting Wang,Dehuan Fu,Yali Gui,Jingkun Wang,Tao Cui

Frontiers of Medicine 2016, Volume 10, Issue 2,   Pages 166-177 doi: 10.1007/s11684-016-0448-9

Abstract: On this basis, we abstracted the innovative development path of ethnomedicines for the first time, which

Keywords： medicines     ethnomedicines     Chinese ethnic minorities     ethnopharmacology     research mode     innovative development path    

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Study on the Path of “Near-zero Emission” Coal-based Clean Energy Ecosystem Development

Zhang Yu-zhuo

Frontiers of Engineering Management 2014, Volume 1, Issue 1,   Pages 37-41 doi: 10.15302/J-FEM-2014007

Abstract: Developing a "near-zero emission" coal-based clean energy ecosystem bears great significance for the sustainable development of clean energy in China and the world at large. This article delves into the development strategy, implementation pathways and key priorities of China's "near-zero emission" coal-based clean energy ecosystem, and in turn proposes specific measures to underpin the development and implementation of such system.

Keywords： near-zero emission     clean energy ecosystem     study on the path    

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The Shortest Path for Mobile Robots in Obstacle Avoidance

Guo Ge

Strategic Study of Chinese Academy of Engineering 2003, Volume 5, Issue 5,   Pages 70-75

Abstract: in obstacle avoidance are discussed in detail, which leads to the final important result of optimal path

Keywords： mobile robot     ultrasonic sensor     obstacle avoidance     path planning     optimal path    

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Alternate partial root-zone irrigation with high irrigation frequency improves root growth and reduces

Shaoqing DU, Ling TONG, Shaozhong KANG, Fusheng LI, Taisheng DU, Sien LI, Risheng DING

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 2,   Pages 188-196 doi: 10.15302/J-FASE-2017176

Abstract: Alternate partial root-zone irrigation (APRI) can improve water use efficiency in arid areas.Overall, alternate partial root-zone irrigation with high frequency has a great potential to promote

Keywords： alternate partial root-zone irrigation     apple tree     leaf water use efficiency     root length density     stomatal    

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Tool path strategy and cutting process monitoring in intelligent machining

Ming CHEN, Chengdong WANG, Qinglong AN, Weiwei MING

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 2,   Pages 232-242 doi: 10.1007/s11465-018-0469-y

Abstract: Results show that intelligent tool path optimization and cutting process online monitoring are efficient

Keywords： intelligent machining     tool path strategy     process optimization     online monitoring    

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Biologically inspired model of path integration based on head direction cells and grid cells

Yang ZHOU,De-wei WU

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 5,   Pages 435-448 doi: 10.1631/FITEE.1500364

Abstract: Thus, it is considered that these cells play an important role in the rodents’ path integration.To provide a bionic approach for the vehicle to achieve path integration, we present a biologically inspiredmodel of path integration based on the firing characteristics of HDCs and GCs.Besides, the proposed model is realized by simulation, and the path integration performance is analyzed

Keywords： Head direction cells (HDCs)     Grid cells (GCs)     Path integration     Bionic navigation    

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Title Author Date Type Operation

Deep reinforcement learning-based critical element identification and demolition planning of frame structures

Journal Article

Investigation on a mitigation scheme to resist the progressive collapse of reinforced concrete buildings

Iman TABAEYE IZADI, Abdolrasoul RANJBARAN

Journal Article

Finding buckling points for nonlinear structures by dynamic relaxation scheme

Mohammad REZAIEE-PAJAND, Hossein ESTIRI

Journal Article

Efficientmesh denoising via robust normal filtering and alternate vertex updating

Tao LI, Jun WANG, Hao LIU, Li-gang LIU

Journal Article

Ion conduction path in composite solid electrolytes for lithium metal batteries: from polymer rich to

Journal Article

Estimation of composite load model with aggregate induction motor dynamic load for an isolated hybrid

Nitin Kumar SAXENA,Ashwani Kumar SHARMA

Journal Article

The Path Dependence of Chinese Corporate Governance——Theoretical and Positive Analysis

Bing Hongyan

Journal Article

Innovative development path of ethnomedicines: the interpretation of the path

Zhaoyun Zhu,Dehuan Fu,Yali Gui,Tao Cui,Jingkun Wang,Ting Wang,Zhizhong Yang,Yanfei Niu,Zhennan She,Li Wang

Journal Article

Extended model predictive control scheme for smooth path following of autonomous vehicles

Journal Article

Innovative development path of ethnomedicines: an overview of ethnomedicines in China

Zhaoyun Zhu,Ting Wang,Dehuan Fu,Yali Gui,Jingkun Wang,Tao Cui

Journal Article

Study on the Path of “Near-zero Emission” Coal-based Clean Energy Ecosystem Development

Zhang Yu-zhuo

Journal Article

The Shortest Path for Mobile Robots in Obstacle Avoidance

Guo Ge

Journal Article

Alternate partial root-zone irrigation with high irrigation frequency improves root growth and reduces

Shaoqing DU, Ling TONG, Shaozhong KANG, Fusheng LI, Taisheng DU, Sien LI, Risheng DING

Journal Article

Tool path strategy and cutting process monitoring in intelligent machining

Ming CHEN, Chengdong WANG, Qinglong AN, Weiwei MING

Journal Article

Biologically inspired model of path integration based on head direction cells and grid cells

Yang ZHOU,De-wei WU

Journal Article