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Event-triggered dynamic output-feedback control for a class of Lipschitz nonlinear systems Research Article

Zhiqian LIU, Xuyang LOU, Jiajia JIA

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 11,   Pages 1684-1699 doi: 10.1631/FITEE.2100552

Abstract: First, a continuous-time controller is constructed and sufficient conditions for stability of the nonlinearSufficient conditions for stability of the closed-loop system are established in the framework of hybrid

Keywords： Lipschitz nonlinear system     Dynamic output-feedback control     Event-triggered control     Global asymptoticstability    

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Solution and stability of continuous-time cross-dimensional linear systems

Qing-le Zhang, Biao Wang, Jun-e Feng,zqlcfc03@163.com,wangbiao9956@163.com,fengjune@sdu.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 2,   Pages 141-286 doi: 10.1631/FITEE.1900504

Abstract: We investigate the solution and stability of continuous-time linear systems (CCDLSs) with dimension

Keywords： Cross-dimensional     V-addition     V-product     Asymptotic stability     Stabilization    

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Damage identification of a large-span concrete cable-stayed bridge based on genetic algorithm

ZHU Jinsong, XIAO Rucheng

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 2,   Pages 170-175 doi: 10.1007/s11709-007-0018-y

Abstract: The global stability of a structure, the stiffness of its main girder and concrete tower, and the variation

Keywords： accurate     primary     global stability     complex     identification    

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Solvates and polymorphs of clindamycin phosphate: Structural, thermal stability and moisture stability

Junbo Gong, Dejiang Zhang, Yuanyuan Ran, Keke Zhang, Shichao Du

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 2,   Pages 220-230 doi: 10.1007/s11705-017-1624-4

Abstract: Clindamycin phosphate (CP), an antibacterial agent, has been reported to form several solid-state forms. The crystal structures of two CP solvates, a dimethyl sulfoxide (DMSO) solvate and a methanol/water solvate (solvate V), have been determined by single crystal X-ray diffraction. The properties and transformations of these forms were characterized by powder X-ray diffraction, Single-crystal X-ray diffraction, differential scanning calorimetry, thermo gravimetric analysis, hot-stage microscopy, and dynamic vapor sorption. Very different hydrogen bonding networks exist among the host-host and host-solvent molecules in the two crystal structures, resulting in different moisture stabilities. The thermal stabilities of the two solvates upon heating and desolvation were also studied. When the temperature was above the boiling point of methanol, solvate V converted to a polymorphic phase after a one step desolvation process, whereas the desolvation temperature of the DMSO solvate was below the boiling point of DMSO. At the relative humidity above 43%, the DMSO solvate transformed to a hydrate at 25 °C. In contrast, solvate V did not transform at any of the humidities studied.

Keywords： clindamycin phosphate     solvate     crystal structure     thermal stability     moisture stability    

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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: New and practical conditions are given to study the existence, uniqueness, and global exponential stability

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

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Evaluation and prediction of slope stability using machine learning approaches

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 821-833 doi: 10.1007/s11709-021-0742-8

Abstract: In this paper, the machine learning (ML) model is built for slope stability evaluation and meets the

Keywords： slope stability     factor of safety     regression     machine learning     repeated cross-validation    

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SUSTAINABLE NITROGEN MANAGEMENT INDEX: DEFINITION, GLOBAL ASSESSMENT AND POTENTIAL IMPROVEMENTS

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 3,   Pages 356-365 doi: 10.15302/J-FASE-2022458

Abstract:

● A composite N management index is proposed to measure agriculture sustainability.

Keywords： global assessment     indicator     nitrogen management     sustainable agriculture     sustainable development goals    

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Modified Bishop method for stability analysis of weakly sloped subgrade under centrifuge model test

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 727-741 doi: 10.1007/s11709-021-0730-z

Abstract: The accuracy of traditional slice methods for computing the stability safety factor of weakly slopedIn this study, a novel modified Bishop method was developed to improve the accuracy of the stability

Keywords： weakly sloped subgrade     stability analysis     additional force     influential force     modified Bishop method    

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Engineering management: Global engineering research frontiers

Botao ZHONG, Luting QIU

Frontiers of Engineering Management 2020, Volume 7, Issue 1,   Pages 159-162 doi: 10.1007/s42524-020-0094-4

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Effect of cutterhead configuration on tunnel face stability during shield machine maintenance outages

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4,   Pages 522-532 doi: 10.1007/s11709-023-0930-9

Abstract: Engineering safety during maintenance outages is determined by the stability of the tunnel face.Disregarding the supporting effect of the cutterhead will result in a tunnel face with underestimated stability

Keywords： tunnel face stability     cutterhead configuration     aperture ratio     pressure gradient     support ratio    

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MANURE AND METROPOLES---A GLOBAL FRAMEWORK FOR NUTRIENT CYCLING IN FOOD SYSTEMS

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 1,

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Soil security and global food security

Frontiers of Agricultural Science and Engineering doi: 10.15302/J-FASE-2023530

Abstract:

● Much of the world’s agricultural land has been degraded through soil loss and degradation of soil organic matter.

Keywords： Agriculture     soil security     food security     regenerative    

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Effect of undercut on the lower bound stability of vertical rock escarpment using finite element and

Shuvankar DAS; Debarghya CHAKRABORTY

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 8,   Pages 1040-1055 doi: 10.1007/s11709-022-0841-1

Abstract: In the present study, the stability of a vertical rock escarpment is determined by considering the influenceThe change in stability due to the presence of undercut is expressed in terms of a non-dimensional stabilityThe obtained results indicate that undercut can cause a severe stability problem in rock mass havingdeveloped design equation as well as design charts can be useful for practicing engineers to determine the stability

Keywords： undercut     vertical escarpment     stability     Hoek-Brown yield criterion     PCP    

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Correction to: Effect of undercut on the lower bound stability of vertical rock escarpment using finite

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0035-5

Abstract: Correction to: Effect of undercut on the lower bound stability of vertical rock escarpment using finite

Keywords： finite element power     stability rock escarpment    

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Influence of boundary conditions and turntable speeds on the stability of hydrostatic oil cavity

Zhaomiao LIU, Chengyin ZHANG, Feng SHEN

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3,   Pages 359-368 doi: 10.1007/s11465-011-0222-2

Abstract: The vortex effect is weakened, and the stability of the oil cavity is enhanced with the increase in lubricantinlet speed, depth, and inlet radius of the oil cavity causes the vortex effect to increase and the stability

Keywords： hydrostatic oil cavity     flow state     oil cavity pressure     stability     vortex    

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Title Author Date Type Operation

Event-triggered dynamic output-feedback control for a class of Lipschitz nonlinear systems

Zhiqian LIU, Xuyang LOU, Jiajia JIA

Journal Article

Solution and stability of continuous-time cross-dimensional linear systems

Qing-le Zhang, Biao Wang, Jun-e Feng,zqlcfc03@163.com,wangbiao9956@163.com,fengjune@sdu.edu.cn

Journal Article

Damage identification of a large-span concrete cable-stayed bridge based on genetic algorithm

ZHU Jinsong, XIAO Rucheng

Journal Article

Solvates and polymorphs of clindamycin phosphate: Structural, thermal stability and moisture stability

Junbo Gong, Dejiang Zhang, Yuanyuan Ran, Keke Zhang, Shichao Du

Journal Article

New results on impulsive type inertial bidirectional associativememory neural networks

Chaouki AOUITI, Mahjouba Ben REZEG, Yang CAO

Journal Article

Evaluation and prediction of slope stability using machine learning approaches

Journal Article

SUSTAINABLE NITROGEN MANAGEMENT INDEX: DEFINITION, GLOBAL ASSESSMENT AND POTENTIAL IMPROVEMENTS

Journal Article

Modified Bishop method for stability analysis of weakly sloped subgrade under centrifuge model test

Journal Article

Engineering management: Global engineering research frontiers

Botao ZHONG, Luting QIU

Journal Article

Effect of cutterhead configuration on tunnel face stability during shield machine maintenance outages

Journal Article

MANURE AND METROPOLES---A GLOBAL FRAMEWORK FOR NUTRIENT CYCLING IN FOOD SYSTEMS

Journal Article

Soil security and global food security

Journal Article

Effect of undercut on the lower bound stability of vertical rock escarpment using finite element and

Shuvankar DAS; Debarghya CHAKRABORTY

Journal Article

Correction to: Effect of undercut on the lower bound stability of vertical rock escarpment using finite

Journal Article

Influence of boundary conditions and turntable speeds on the stability of hydrostatic oil cavity

Zhaomiao LIU, Chengyin ZHANG, Feng SHEN

Journal Article