Resource Type

Journal Article 48

Conference Videos 4

Year

2023 6

2022 3

2021 2

2020 5

2019 7

2018 3

2017 5

2016 3

2015 2

2013 1

2012 3

2011 1

2010 1

2009 2

2008 2

2006 1

2003 1

2002 2

2001 1

2000 1

open ︾

Keywords

model updating 3

map matching 2

Adaptive control 1

Adaptive watermarking 1

Additive manufacturing 1

Adjoint operator 1

Affine transformation 1

Airborne imagery 1

Alternate vertex updating 1

Autonomous exploration 1

BAC library 1

BTW1/Q345R bimetal 1

Bionic robot 1

Bulk synchronous parallel 1

CA498Z 1

Chaotic 1

Chebyshev 1

Chebyshev map 1

China 1

open ︾

Search scope:

排序： Display mode:

Map Update in Raster Mode by Means of Aerial and Space Images

Lin Zongjian

Strategic Study of CAE 2000, Volume 2, Issue 4,   Pages 43-47

Abstract:

To meet the urgent needs of updating 1：10 000 scale and 1 ：50 000 scale topographic map for the wholeof China, an integrated techinique for key elements revision is proposed, in which the topographic mapraster mode through overlaying the precisely geo-rectified aerial or satellite image on the digitized mapThe following issues are specially presented： 1) The scanning resolution of topographic map digitization

Keywords： surveying and mapping     remote sensing     map updating     digital raster graphic (DRG)    

HTML PDF Collect

Digital twin-assisted gearbox dynamic model updating toward fault diagnosis

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-023-0748-0

Abstract: In this study, a digital twin-assisted dynamic model updating method for fault diagnosis is thus proposedsurrogate technique, and optimization algorithm are applied to increase the efficiency during the model updatingFinally, the proposed method is successfully applied to the dynamic model updating of a single-stage

Keywords： digital twin     gearbox     model construction     model updating     physical–virtual interaction    

HTML PDF Collect

Multi-stage Model Updating Method via Substructure Analysis

Guo Li,Li Zhaoxia,Chen Hongtian

Strategic Study of CAE 2006, Volume 8, Issue 9,   Pages 42-48

Abstract:

Basing on substructure analysis, original research on multi-stage model updating method (MSMUM) ispresented to reduce the uncertainties in traditional model updating process.The kernel philosophy of the multi-stage model updating method is used to update a complicated FE modelComparing the updated FE model here with the updated model using traditional updating method, it couldbe concluded that the multi-stage updating method is more effective.

Keywords： model updating     substructure     error localization     parameters updating     Runyang Bridge    

HTML PDF Collect

Engineering Application of FEM Updating Technology

Chen Decheng,Wei Zhensong,Qu Guangji,Zhu An wen,Xiao Yifang

Strategic Study of CAE 2001, Volume 3, Issue 10,   Pages 59-63

Abstract:

In this paper, focusing on practical engineering application of Finite Element Model (FEM) updatingThis paper explains the basic thought and numerical method of a FEM updating approach that has achievedalso presents the difficulties in the practical engineering application of Finite Element Model (FEM) updating

Keywords： FEM updating     test model     sensitivity     dynamic reduction     natural frequency     mode shape    

HTML PDF Collect

Dynamic test and finite element model updating of bridge structures based on ambient vibration

HUANG Minshui, ZHU Hongping, LI Lin, GUO Wenzeng

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 2,   Pages 139-144 doi: 10.1007/s11709-008-0028-4

Abstract: The dynamic characteristics of bridge structures are the basis of structural dynamic response and seismic analysis, and are also an important target of health condition monitoring. In this paper, a three-dimensional finite-element model is first established for a highway bridge over a railroad on No.312 National Highway. Based on design drawings, the dynamic characteristics of the bridge are studied using finite element analysis and ambient vibration measurements. Thus, a set of data is selected based on sensitivity analysis and optimization theory; the finite element model of the bridge is updated. The numerical and experimental results show that the updated method is more simple and effective, the updated finite element model can reflect the dynamic characteristics of the bridge better, and it can be used to predict the dynamic response under complex external forces. It is also helpful for further damage identification and health condition monitoring.

Keywords： numerical     effective     Highway     vibration     complex external    

HTML PDF Collect

Multiple input self-organizing-map ResNet model for optimization of petroleum refinery conversion units

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 6,   Pages 759-771 doi: 10.1007/s11705-022-2269-5

Abstract: ., multi-input self-organizing-map ResNet (MISR), for modeling refining units comprised of two reactorsThe model is comprised of self-organizing-map and the neural network parts.The self-organizing-map part maps the input data into multiple two-dimensional planes and sends thempredicts more accurately the product yields and properties than the previously introduced self-organizing-map

Keywords： hydrocracking     convolutional neural networks     self-organizing map     deep learning     data-driven optimization    

HTML PDF Collect

Ambient vibration testing and updating of the finite element model of a simply supported beam bridge

Ivan Gomez ARAUJO, Esperanza MALDONADO, Gustavo Chio CHO

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3,   Pages 344-354 doi: 10.1007/s11709-011-0124-8

Abstract: experimentally obtained dynamic characteristics were also achieved in the analytical model through updating

Keywords： modal analysis     parameter identification     ambient vibration test     Eigensystem Realization Algorithm (ERA) method     finite element method    

HTML PDF Collect

Finite element model updating of a large structure using multi-setup stochastic subspace identification

Reza KHADEMI-ZAHEDI, Pouyan ALIMOURI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4,   Pages 965-980 doi: 10.1007/s11709-019-0530-x

Abstract: In the present contribution, operational modal analysis in conjunction with bees optimization algorithm are utilized to update the finite element model of a solar power plant structure. The physical parameters which required to be updated are uncertain parameters including geometry, material properties and boundary conditions of the aforementioned structure. To determine these uncertain parameters, local and global sensitivity analyses are performed to increase the solution accuracy. An objective function is determined using the sum of the squared errors between the natural frequencies calculated by finite element method and operational modal analysis, which is optimized using bees optimization algorithm. The natural frequencies of the solar power plant structure are estimated by multi-setup stochastic subspace identification method which is considered as a strong and efficient method in operational modal analysis. The proposed algorithm is efficiently implemented on the solar power plant structure located in Shahid Chamran university of Ahvaz, Iran, to update parameters of its finite element model. Moreover, computed natural frequencies by numerical method are compared with those of the operational modal analysis. The results indicate that, bees optimization algorithm leads accurate results with fast convergence.

Keywords： operational modal analysis     solar power plant structure     multi-setup stochastic subspace     bees optimization algorithm     sensitivity analysis    

HTML PDF Collect

A bacterial artificial chromosome-based physical map of

Yuhua FU,Zhiqiang XIA,Shujuan WANG,Xin CHEN,Cheng LU,Mingcheng LUO,Hongbin ZHANG,Wenquan WANG

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 4,   Pages 321-329 doi: 10.15302/J-FASE-2016124

Abstract: A total of 29952 clones were fingerprinted and resulted in a cassava physical map composed of 2485 contigsThis BAC-based physical map provides valuable tools to understand the genetics and evolution of cassava

Keywords： cassava     BAC library     physical map    

HTML PDF Collect

Thoughts and Suggestions on Autonomous Driving Map Policy

Liu Jingnan, Dong Yang, Zhan Jiao, Gao Kefu

Strategic Study of CAE 2019, Volume 21, Issue 3,   Pages 92-97 doi: 10.15302/J-SSCAE-2019.03.004

Abstract: style="text-align: justify;">As a key infrastructure to realize autonomous driving, autonomous driving mapCurrently, constrained by laws and regulations related to ground mapping, map application, and supervisiongeographic information expression, qualifications for geographic information collection and the process for mapreview, accident liability and insurance issues, as well as autonomous driving map related test specificationsdevelopment and commercialization of autonomous driving vehicles in China: formulating an autonomous driving map

Keywords： autonomous driving map     autonomous driving regulation     autonomous driving policy    

HTML PDF Collect

Optimization of process parameters for mature landfill leachate pretreatment using MAP precipitation

Wei LI, Xiaowen DING, Min LIU, Yuewen GUO, Lei LIU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 892-900 doi: 10.1007/s11783-012-0440-9

Abstract: experiments were carried out to determine the optimal conditions enhancing the magnesium ammonium phosphate (MAPThe residues of MAP sediments decomposed by heating under alkaline conditions can be reused as the sourceshigh concentrations of , and up to 90% of ammonium could be released under molar ratio of n[OH]∶n[MAP

Keywords： magnesium ammonium phosphate precipitation     mature landfill leachate     optimization     ammonium-nitrogen    

HTML PDF Collect

Optimization of fuel supply map during starting process of electronic controlled diesel engine

LIANG Jinguang, YU Xiumin, GAO Yue, WANG Yunkai, YU Hongyang, Gong Baoli

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 410-415 doi: 10.1007/s11708-008-0080-8

Abstract: Tests were conducted to study influence of fuel supply map during the starting process of an electronicThe calibration process of starting fuel supply map was educed under the principle of low HC emissionThe calibration methods of starting fuel supply map were obtained.

Keywords： supply     management     CA498Z     process     controlled distributor    

HTML PDF Collect

A road-map for energy-neutral wastewater treatment plants of the future based on compact technologies

Hallvard Ødegaard

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0835-0

Abstract: In the paper concepts for wastewater treatment of the future are discussed by the use of a) one flow diagram based on established, compact, proven technologies (i.e. nitrification/denitrification for N-removal in the mainstream) and b) one flow diagram based on emerging, compact technologies (i.e. de-ammonification in the main stream).The latter (b) will give an energy-neutral wastewater treatment plant, while this cannot be guaranteed for the first one (a). The example flow diagrams show plant concepts that a) minimize energy consumption by using compact biological and physical/chemical processes combined in an optimal way, for instance by using moving bed biofilm reactor (MBBR) processes for biodegradation and high-rate particle separation processes, and de-ammonification processes for N-removal and b)maximize energy (biogas) production through digestion by using wastewater treatment processes that minimize biodegradation of the sludge (prior to digestion) and pretreatment of the sludge prior to digestion by thermal hydrolysis. The treatment plant of the future should produce a water quality (for instance bathing water quality) that is sufficient for reuse of some kind (toilet flushing, urban use, irrigation etc.). The paper outlines compact water reclamation processes based on ozonation in combination with coagulation as pretreatment before ceramic membrane filtration. In the paper concepts for domestic wastewater treatment plants of the future are discussed by the use of a) one flow diagram based on established, compact, proven technologies (i.e. nitrification/denitrification for N-removal in the mainstream) and b) one flow diagram based on emerging, compact technologies (i.e. de-ammonification in the main stream).The latter (b) will give an energy-neutral wastewater treatment plant, while this cannot be guaranteed for the first one (a). The example flow diagrams show plant concepts that a) minimize energy consumption by using compact biological and physical/chemical processes combined in an optimal way, for instance by using moving bed biofilm reactor (MBBR) processes for biodegradation and high-rate particle separation processes, and de-ammonification processes for N-removal and b)maximize energy (biogas) production through digestion by using wastewater treatment processes that minimize biodegradation of the sludge (prior to digestion) and pretreatment of the sludge prior to digestion by thermal hydrolysis. The treatment plant of the future should produce a water quality (for instance bathing water quality) that is sufficient for reuse of some kind (toilet flushing, urban use, irrigation etc.). The paper outlines compact water reclamation processes based on ozonation in combination with coagulation as pretreatment before ceramic membrane filtration.

Keywords： China concept WWTP     Energy-neutrality     De-ammonification     moving bed biofilm reactor (MBBR)    

HTML PDF Collect

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:

An increasing number of drivers are relying on digital map navigation systems in vehicles or mobileIn the near future, digital map navigation systems are expected to play more important roles in transportationnavigation systems to more applications, two fundamental problems must be resolved: the lane-level mapThe current limitation of the lane-level map model is not its accuracy but its flexibility; this studyproposes a novel seven-layer map structure, called as Tsinghua map model, which is able to support autonomous

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

HTML PDF Collect

Building a dense surface map incrementally from semi-dense point cloud andRGBimages

Qian-shan LI,Rong XIONG,Shoudong HUANG,Yi-ming HUANG

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 7,   Pages 594-606 doi: 10.1631/FITEE.14a0260

Abstract: A dense surface map, which offers rich visual and geometric information, is an ideal representation ofsemi-dense point cloud and RGB images, we propose a method to generate a consistent and dense surface mapits corresponding image(s) and (2) incrementally fuse the dense surface of a new scan into the whole map

Keywords： Bionic robot     Robotic mapping     Surface fusion    

HTML PDF Collect

Title Author Date Type Operation

Map Update in Raster Mode by Means of Aerial and Space Images

Lin Zongjian

Journal Article

Digital twin-assisted gearbox dynamic model updating toward fault diagnosis

Journal Article

Multi-stage Model Updating Method via Substructure Analysis

Guo Li,Li Zhaoxia,Chen Hongtian

Journal Article

Engineering Application of FEM Updating Technology

Chen Decheng,Wei Zhensong,Qu Guangji,Zhu An wen,Xiao Yifang

Journal Article

Dynamic test and finite element model updating of bridge structures based on ambient vibration

HUANG Minshui, ZHU Hongping, LI Lin, GUO Wenzeng

Journal Article

Multiple input self-organizing-map ResNet model for optimization of petroleum refinery conversion units

Journal Article

Ambient vibration testing and updating of the finite element model of a simply supported beam bridge

Ivan Gomez ARAUJO, Esperanza MALDONADO, Gustavo Chio CHO

Journal Article

Finite element model updating of a large structure using multi-setup stochastic subspace identification

Reza KHADEMI-ZAHEDI, Pouyan ALIMOURI

Journal Article

A bacterial artificial chromosome-based physical map of

Yuhua FU,Zhiqiang XIA,Shujuan WANG,Xin CHEN,Cheng LU,Mingcheng LUO,Hongbin ZHANG,Wenquan WANG

Journal Article

Thoughts and Suggestions on Autonomous Driving Map Policy

Liu Jingnan, Dong Yang, Zhan Jiao, Gao Kefu

Journal Article

Optimization of process parameters for mature landfill leachate pretreatment using MAP precipitation

Wei LI, Xiaowen DING, Min LIU, Yuewen GUO, Lei LIU

Journal Article

Optimization of fuel supply map during starting process of electronic controlled diesel engine

LIANG Jinguang, YU Xiumin, GAO Yue, WANG Yunkai, YU Hongyang, Gong Baoli

Journal Article

A road-map for energy-neutral wastewater treatment plants of the future based on compact technologies

Hallvard Ødegaard

Journal Article

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

Building a dense surface map incrementally from semi-dense point cloud andRGBimages

Qian-shan LI,Rong XIONG,Shoudong HUANG,Yi-ming HUANG

Journal Article