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A multiscale-contour-based interpolation framework for generating a time-varying quasi-dense point cloudsequence

Chu-hua HUANG,Dong-ming LU,Chang-yu DIAO

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 5,   Pages 422-434 doi: 10.1631/FITEE.1500316

Abstract: the same model, and two contours which belong to the same view at different times, corresponding to pointThe framework formulates the interpolation of two models as point cloud transport rather than non-rigidOur framework speeds up the reconstruction of a dynamic scene while improving the accuracy of point-pairingWe obtain a higher frame rate, spatio-temporal-coherence, and a quasi-dense point cloud sequence with

Keywords： Multi-view video     Free-viewpoint video     Point-pair     Multiscale-contour-based interpolation     Spatio-temporal-contour     Consistency     Time-varying point cloud sequence    

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Effects of time-varying liquid bridge forces on rheological properties, and resulting extrudability and

Frontiers of Structural and Civil Engineering   Pages 1295-1309 doi: 10.1007/s11709-023-0999-1

Abstract: First, a discrete element model with time-varying liquid bridge forces is developed to investigate theThe study demonstrates that the effects of time-varying liquid bridge forces on rheological properties

Keywords： particle-based simulation     liquid bridge force     rheological property     3D printing mortar     extrudability     constructability    

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reference tracking control design for a class of nonlinear systems with time-varying delays

Mei-qin LIU,Hai-yang CHEN,Sen-lin ZHANG

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 9,   Pages 759-768 doi: 10.1631/FITEE.1500053

Abstract: This paper investigates the trajectory tracking control for a class of nonlinear systems with timevarying delays by virtue of Lyapunov-Krasovskii stability theory and the linear matrix inequality (LMI) technique. A unified model consisting of a linear delayed dynamic system and a bounded static nonlinear operator is introduced, which covers most of the nonlinear systems with bounded nonlinear terms, such as the one-link robotic manipulator, chaotic systems, complex networks, the continuous stirred tank reactor (CSTR), and the standard genetic regulatory network (SGRN). First, the definition of the tracking control is given. Second, the performance analysis of the closed-loop system including this unified model, reference model, and state feedback controller is presented. Then criteria on the tracking controller design are derived in terms of LMIs such that the output of the closed-loop system tracks the given reference signal in the sense. The reference model adopted here is modified to be more flexible. A scaling factor is introduced to deal with the disturbance such that the control precision is improved. Finally, a CSTR system is provided to demonstrate the effectiveness of the established control laws.

Keywords： H∞     reference tracking     Nonlinear system     State feedback control     Time-varying delays     Unified model    

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Time-varying formation tracking for uncertain second-order nonlinearmulti-agent systems

Mao-peng RAN, Li-hua XIE, Jun-cheng LI

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 1,   Pages 76-87 doi: 10.1631/FITEE.1800557

Abstract:

Our study is concerned with the time-varying formation tracking problem for second-order multi-agentunknown nonlinear dynamics and external disturbance, and the states of the followers form a predefined time-varyingThen we propose a novel ESO based time-varying formation tracking protocol.It is proved that, under the proposed protocol, the ESO estimation error and the time-varying formation

Keywords： Multi-agent system     Time-varying formation     Formation tracking     Nonlinear dynamics     Extended state observer    

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Modified Performance Index Method for Parameter Estimation for Industrial Process with Time-varying

Zhang Chenghui

Strategic Study of CAE 2001, Volume 3, Issue 11,   Pages 54-59

Abstract:

A new estimation method based on modified performance index is proposed for time-varying process to

Keywords： parameter estimation     method of calculation     least square method     time-varying system     industrial production    

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Convergence of time-varying networks and its applications Research Articles

Qingling Wang,qlwang@seu.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 1,   Pages 1-140 doi: 10.1631/FITEE.2000160

Abstract: In this study, we present the convergence of . Then, we apply the convergence property to cooperative control of nonlinear multiagent systems (MASs) with (UCDs), and illustrate a new kind of based control algorithms. It is proven that if the are cut-balance, the convergence of nonlinear MASs with nonidentical UCDs is achieved using the presented algorithms. A critical feature of this application is that the designed algorithms can deal with nonidentical UCDs by employing conventional s. Finally, one simulation example is given to illustrate the effectiveness of the presented algorithms.

Keywords： Time-varying networks     Unknown control directions     Nussbaum-type function     Cut-balance condition    

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Toward autonomous mining: design and development of an unmanned electric shovel via point cloud-based

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0686-2

Abstract: Initially, the point cloud of the material surface is collected and reconstructed by polynomial responseThen, by establishing the dynamical model of the UES, a point to point (PTP) excavation trajectory planningexcavation trajectory planning approaches, the proposed method tends to be more capable in terms of mining time

Keywords： autonomous excavation     unmanned electric shovel     point cloud     excavation trajectory planning    

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Attuned design of demand response program and M-FACTS for relieving congestion in a restructured market environment

Y. HASHEMI,H. SHAYEGHI,B. HASHEMI

Frontiers in Energy 2015, Volume 9, Issue 3,   Pages 282-296 doi: 10.1007/s11708-015-0366-6

Abstract: For the solution of this problem a nonlinear time-varying evolution (NTVE) based multi-objective particlethe set of Pareto-solutions obtained through multi-objective particle swarm optimization-nonlinear time-varying

Keywords： M-FACTS)     demand response     fuzzy decision making     multi-objective particle swarm optimization-nonlinear time-varying    

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New results on impulsive type inertial bidirectional associativememory neural networks Research Articles

Chaouki AOUITI, Mahjouba Ben REZEG, Yang CAO

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 2,   Pages 324-339 doi: 10.1631/FITEE.1900181

Abstract: This paper is concerned with inertial bidirectional associative memory neural networks with mixed delays and impulsive effects. New and practical conditions are given to study the existence, uniqueness, and global exponential stability of anti-periodic solutions for the suggested system. We use differential inequality techniques to prove our main results. Finally, we give an illustrative example to demonstrate the effectiveness of our new results.

Keywords： Inertial neural networks     Anti-periodic solutions     Global exponential stability     Impulsive effect     Time-varying    

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Event-triggered adaptive finite-time control for nonlinear systems under asymmetric time-varying state Research Article

Yan Wei, Jun Luo, Huaicheng Yan, Yueying Wang,wyy676@126.com

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 12,   Pages 1551-1684 doi: 10.1631/FITEE.2000692

Abstract: To prevent asymmetric time-varying from being violated, a tan-type is established to transform the

Keywords： 事件触发控制；非线性映射；自适应模糊控制；有限时间；状态约束    

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Controllability of fractional-order damped systems with time-varying delays in control Research Articles

Bin-bin He, Hua-cheng Zhou, Chun-hai Kou,hebinbin45@126.com,hczhou@amss.ac.cn,kouchunhai@dhu.edu.cn

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 6,   Pages 809-962 doi: 10.1631/FITEE.1900736

Abstract: In this study, we focus on the of in linear and nonlinear cases with multiple in control. For the linear system based on the Mittag-Leffler matrix function, we define a , which is useful in judging whether the system is controllable or not. Furthermore, in two special cases, we present serval equivalent controllable conditions which are easy to verify. For the nonlinear system, under the of its corresponding linear system, we obtain a sufficient condition on the nonlinear term to ensure that the system is controllable. Finally, two examples are given to illustrate the theory.

Keywords： 可控性；分数阶阻尼系统；时变时滞；Gramian矩阵    

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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: most bionic robots can use only small light-weight laser scanners and cameras to acquire semi-dense pointof semi-dense point cloud and RGB images.The method contains two main steps: (1) generate a dense surface for every single scan of point cloudIn step (1) edge-aware resampling is realized by segmenting the scan of a point cloud in advance andresampling each sub-cloud separately.

Keywords： Bionic robot     Robotic mapping     Surface fusion    

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FULL TIME-SPACE GOVERNANCE STRATEGY AND TECHNOLOGY FOR CROPLAND NON-POINT POLLUTION CONTROL IN CHINA

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 4,   Pages 593-606 doi: 10.15302/J-FASE-2023522

Abstract:

Ensuring food safety while reducing agricultural non-point source pollution is quite challenging,Effective systematic strategies and comprehensive technologies need to be developed for agricultural non-pointIn this review, a proposal is made for a full time-space governance strategy that prioritizes sourceThe 4R chain technology system with the full time-space governance strategy was applied at the scaleof an administrative village and proved to be a feasible solution for reducing agricultural non-point

Keywords： 4R chain technology system     agricultural non-point source pollution     case study     full time-space governance    

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Three-dimensional face point cloud hole-filling algorithm based on binocular stereo matching and a B-spline Research Articles

Yuan HUANG, Feipeng DA,whhbb@163.com

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 3,   Pages 398-408 doi: 10.1631/FITEE.2000508

Abstract: When obtaining three-dimensional (3D) face point cloud data based on structured light, factors relatedThe algorithm uses phase information acquired during raster projection to locate holes in the point cloud, simultaneously extracting boundary point cloud sets.By registering the face point cloud data using the stereo-matching algorithm and the data collected usingThis approach also effectively supplements the hole information, and the patched point cloud is closer

Keywords： Three-dimensional (3D) point cloud     Hole filling     Stereo matching     B-spline    

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Two-phase Partitioning Bioreactor, Application of Cloud Point System in Bioconversion

Wang Zhilong

Strategic Study of CAE 2005, Volume 7, Issue 5,   Pages 73-78

Abstract: The practical potential of cloud point system as a novel two-phase partitioning bioreactor is illustrated

Keywords： two-phase partitioning     bioconversion     nonionic surfactant     cloud point system     bioreactor    

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Title Author Date Type Operation

A multiscale-contour-based interpolation framework for generating a time-varying quasi-dense point cloudsequence

Chu-hua HUANG,Dong-ming LU,Chang-yu DIAO

Journal Article

Effects of time-varying liquid bridge forces on rheological properties, and resulting extrudability and

Journal Article

reference tracking control design for a class of nonlinear systems with time-varying delays

Mei-qin LIU,Hai-yang CHEN,Sen-lin ZHANG

Journal Article

Time-varying formation tracking for uncertain second-order nonlinearmulti-agent systems

Mao-peng RAN, Li-hua XIE, Jun-cheng LI

Journal Article

Modified Performance Index Method for Parameter Estimation for Industrial Process with Time-varying

Zhang Chenghui

Journal Article

Convergence of time-varying networks and its applications

Qingling Wang,qlwang@seu.edu.cn

Journal Article

Toward autonomous mining: design and development of an unmanned electric shovel via point cloud-based

Journal Article

Attuned design of demand response program and M-FACTS for relieving congestion in a restructured market environment

Y. HASHEMI,H. SHAYEGHI,B. HASHEMI

Journal Article

New results on impulsive type inertial bidirectional associativememory neural networks

Chaouki AOUITI, Mahjouba Ben REZEG, Yang CAO

Journal Article

Event-triggered adaptive finite-time control for nonlinear systems under asymmetric time-varying state

Yan Wei, Jun Luo, Huaicheng Yan, Yueying Wang,wyy676@126.com

Journal Article

Controllability of fractional-order damped systems with time-varying delays in control

Bin-bin He, Hua-cheng Zhou, Chun-hai Kou,hebinbin45@126.com,hczhou@amss.ac.cn,kouchunhai@dhu.edu.cn

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

FULL TIME-SPACE GOVERNANCE STRATEGY AND TECHNOLOGY FOR CROPLAND NON-POINT POLLUTION CONTROL IN CHINA

Journal Article

Three-dimensional face point cloud hole-filling algorithm based on binocular stereo matching and a B-spline

Yuan HUANG, Feipeng DA,whhbb@163.com

Journal Article

Two-phase Partitioning Bioreactor, Application of Cloud Point System in Bioconversion

Wang Zhilong

Journal Article