Resource Type

Journal Article 140

Conference Videos 3

Conference Topics 1

Year

2023 10

2022 14

2021 9

2020 13

2019 8

2018 9

2017 12

2016 9

2015 7

2014 6

2013 2

2012 5

2011 4

2010 3

2009 3

2008 4

2007 4

2006 6

2005 4

2004 1

open ︾

Keywords

level set method 4

topology optimization 4

isogeometric analysis 3

China 2

trimmed element 2

20 kt-level combined heavy-haul train 1

6FDA-TeMPD 1

N-glycan model 1

MYH1 1

MYH2 1

MYH4 1

in situ IR spectroscopy 1

AQAM 1

Abaqus secondary development 1

Abatement space 1

Adaptation 1

Adaptive weighted sum 1

Aerosol liquid water content 1

Agent simulation 1

open ︾

Search scope:

排序： Display mode:

A Flexible Multi-Layer Map Model Designed for Lane-Level Route Planning in Autonomous Vehicles Article

Kun Jiang, Diange Yang, Chaoran Liu, Tao Zhang, Zhongyang Xiao

Engineering 2019, Volume 5, Issue 2,   Pages 305-318 doi: 10.1016/j.eng.2018.11.032

Abstract: map model and lane-level route planning.The current limitation of the lane-level map model is not its accuracy but its flexibility; this studyFor lane-level route planning, we propose a hierarchical route-searching algorithm to accelerate theIn addition, we model the travel costs allocated for lane-level road networks by analyzing vehicle maneuversTests were performed on both a grid network and a real lane-level road network to demonstrate the validity

Keywords： Lane-level     Route planning     Tsinghua map model     Travel cost model    

HTML PDF Collect

A practical multi-lane factor model of bridges based on multi-truck presence considering lane load disparities

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 877-894 doi: 10.1007/s11709-021-0756-2

Abstract: Many bridge design specifications consider multi-lane factors (MLFs) a critical component of the trafficMeasured multi-lane traffic data generally exhibit significant lane disparities in traffic loads overThe model sensitivity analysis demonstrated the significant influence of lane disparity of truck trafficcaused the proposed approach, existing design specifications, and conventional approach of ignoring lane

Keywords： bridges     multi-lane factor     traffic load     lane load disparity     multi-truck presence     weigh-in-motion    

HTML PDF Collect

Investigating the role of exiting vehicles and turn indicator usage in gap acceptance at single-lane

Nathan P. BELZ

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 1,   Pages 8-16 doi: 10.1007/s11709-016-0365-7

Abstract: addresses the nature of gap distributions and use of turn indicators by exiting vehicles at three single-lane

Keywords： roundabouts     exiting vehicles     turn indicator use     headways    

HTML PDF Collect

Vehicle-road collaboration based on BRT-lane TDM support by vehicle-infrastructure integration

Dong Hongzhao,Ling Yue,Liu Dongxu,Guo Mingfei

Strategic Study of CAE 2012, Volume 14, Issue 7,   Pages 68-73

Abstract:

In order to increase the availability of the part-time idle BRT-lane,this paper proposes a method of time division multiplexing (TDM) to share BRT-lane with other kind oftime from/to the BRT-lane to/from its neighbor lane and determine the timing sequence for vehicles collaborationFinally the experiment demonstrates that the predicted value of the travel time and lane changing timeThe control strategy of the vehicles collaboration could promise other kind of vehicles to share BRT-lane

Keywords： Vehicle-Infrastructure Integration     vehicles collaboration     BRT-lane     time division multiplexing (TDM)     lane-changing time model    

HTML PDF Collect

Simulation of heterogeneous two-phase media using random fields and level sets

George STEFANOU

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2,   Pages 114-120 doi: 10.1007/s11709-014-0267-5

Abstract: critical examination of existing random field models of heterogeneous two-phase media with emphasis on level-cutThe case of random level sets, often used to represent the geometry of physical systems, is also examined

Keywords： microstructure     random fields     level sets     shape recovery     two-phase media    

HTML PDF Collect

The effect of sea level rise on beach morphology of caspian sea coast

M. A. Lashteh NESHAEI, F. GHANBARPOUR

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 4,   Pages 369-379 doi: 10.1007/s11709-017-0398-6

Abstract: Bed level elevations are measured and compared with the theoretical equilibrium profile.In the next stage, following extensive investigations, the bed level changes due to arise in sea levelThe mechanism of beach re-treatment due to a rise in sea level is considered based on the simplifiedComparison of the equilibrium profiles for different cases of sea level rise, clearly shows that becauseof the sediment transport induced by the fluctuation of the water level, the beach profile in the surf

Keywords： wave     coastal zone     beach morphology     evolution     equilibrium profile     sea level rise    

HTML PDF Collect

Level set band method: A combination of density-based and level set methods for the topology optimization

Peng WEI, Wenwen WANG, Yang YANG, Michael Yu WANG

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 3,   Pages 390-405 doi: 10.1007/s11465-020-0588-0

Abstract: The level set method (LSM), which is transplanted from the computer graphics field, has been successfullyIn this study, a level set band method is proposed to overcome this drawback in handling topology changesin the level set framework.improve the continuity of objective and constraint functions by incorporating one parameter, namely, levelThe proposed method demonstrates a flexible topology change by applying a certain size of the level set

Keywords： level set method     topology optimization     density-based method     level set band    

HTML PDF Collect

Research on the key technology of level pre-assembly of steel tower segments

Zhang Yongli,Gu Bifeng

Strategic Study of CAE 2010, Volume 12, Issue 4,   Pages 48-52

Abstract:

In this paper, we researched the key technology of the level pre-assemblyLevel pre-assembly of steel tower fills the technology gaps in China and provides a strong basis for

Keywords： steel tower     level pre-assembly     support control     apply level force    

HTML PDF Collect

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: However, in literatures related to lot-sizing problem, WCR has only been studied in the single-levelIn this paper, we initially adopt WCR model for a multi-level case.A two-level (supplier–customer) model is established on the basis of the classic multi-level lot-sizingTo tackle this problem, we propose sequential and centralized approaches to solve the two-level case

Keywords： two-level ULS problem     lot-sizing     working capital requirement     ZIO property     infinite production capacity    

HTML PDF Collect

Understanding the demand predictability of bike share systems: A station-level analysis

Frontiers of Engineering Management   Pages 551-565 doi: 10.1007/s42524-023-0279-8

Abstract: Divvy bike-share one-year data from Chicago, USA, we measured demand entropy and quantified the station-levelLastly, we identified that key factors contributing to station-level entropy and predictability includeBSS demand prediction, which can help decision makers and system operators anticipate diverse station-level

Keywords： bike share systems     demand prediction     prediction errors     machine learning     entropy    

HTML PDF Collect

Conceptual design of compliant mechanisms using level set method

Shi-kui CHEN, Michael Yu WANG

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 2,   Pages 131-145 doi: 10.1007/s11465-006-0018-y

Abstract: We propose a level set method-based framework for the conceptual design of compliant mechanisms.The geometric shape of the compliant mechanism is represented as the zero level set of a one-higher dimensionallevel set function, and the dynamic variations of the shape are governed by the Hamilton-Jacobi partialThe application of level set methods endows the optimization process with the particular quality that

Keywords： splitting     minimum     dimensional optimization     Hamilton-Jacobi     topological    

HTML PDF Collect

System engineering for water pollution control at the watershed level in China

Wei MENG,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 4,   Pages 443-452 doi: 10.1007/s11783-009-0037-0

Abstract: The present water pollution situation at watershed level in China has been systematically analyzed.The problems of water pollution control at watershed level include a lack of thought and approach, developmentalThe strategies of this project include establishing a water pollution control system at watershed level

Keywords： water pollution control     watershed     system engineering     sustainability     integrated watershed management     key specific project of science and technology    

HTML PDF Collect

Analysis of inventory level under procurement constraints in supply chain

CHANG Guangshu

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3,   Pages 361-363 doi: 10.1007/s11465-007-0063-1

Abstract: performance of the supply chain system, efficient reduction of an inventory can effectively reduce the cost levelConsidering the (, ) policy in an inventory management, this paper establishes a model of the inventory levelThen, the change of the inventory level with and without the procurement constraints is analyzed, andConsequently, the order point can be determined accurately to reduce the inventory level and the operation

Keywords： supply     efficient reduction     system     expectation     procurement    

HTML PDF Collect

Effect of fly ash replacement level on the fracture behavior of concrete

Mahdi AREZOUMANDI, Jeffery S. VOLZ

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 411-418 doi: 10.1007/s11709-013-0228-4

Abstract: presents the results of an experimental investigation that evaluates effect of fly ash replacement levelResults of these statistical tests show that the mix with higher level of fly ash replacement level has

Keywords： concrete     fracture energy     fly ash    

HTML PDF Collect

New insights into the formation of ammonium nitrate from a physical and chemical level perspective

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 11, doi: 10.1007/s11783-023-1737-6

Abstract:

● Factor analysis of ammonium nitrate formation based on thermodynamic theory.

Keywords： Ammonium nitrate formation     Thermodynamic theory     Aerosol liquid water content     Source apportionment    

HTML PDF Collect

Title Author Date Type Operation

A Flexible Multi-Layer Map Model Designed for Lane-Level Route Planning in Autonomous Vehicles

Kun Jiang, Diange Yang, Chaoran Liu, Tao Zhang, Zhongyang Xiao

Journal Article

A practical multi-lane factor model of bridges based on multi-truck presence considering lane load disparities

Journal Article

Investigating the role of exiting vehicles and turn indicator usage in gap acceptance at single-lane

Nathan P. BELZ

Journal Article

Vehicle-road collaboration based on BRT-lane TDM support by vehicle-infrastructure integration

Dong Hongzhao,Ling Yue,Liu Dongxu,Guo Mingfei

Journal Article

Simulation of heterogeneous two-phase media using random fields and level sets

George STEFANOU

Journal Article

The effect of sea level rise on beach morphology of caspian sea coast

M. A. Lashteh NESHAEI, F. GHANBARPOUR

Journal Article

Level set band method: A combination of density-based and level set methods for the topology optimization

Peng WEI, Wenwen WANG, Yang YANG, Michael Yu WANG

Journal Article

Research on the key technology of level pre-assembly of steel tower segments

Zhang Yongli,Gu Bifeng

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

Understanding the demand predictability of bike share systems: A station-level analysis

Journal Article

Conceptual design of compliant mechanisms using level set method

Shi-kui CHEN, Michael Yu WANG

Journal Article

System engineering for water pollution control at the watershed level in China

Wei MENG,

Journal Article

Analysis of inventory level under procurement constraints in supply chain

CHANG Guangshu

Journal Article

Effect of fly ash replacement level on the fracture behavior of concrete

Mahdi AREZOUMANDI, Jeffery S. VOLZ

Journal Article

New insights into the formation of ammonium nitrate from a physical and chemical level perspective

Journal Article