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Study on anti-sliding stability of hydraulic structures on subbed soils

Zhou Junliang

Strategic Study of CAE 2010, Volume 12, Issue 3,   Pages 4-14

Abstract:

To make a study on the anti-sliding stablity of foundation of hydraulicThere are 3 different forms of largest displacement with 8 different forms of silding move of subbedIt is worked out a design method to determine the sliding frictional resistances and the forms of slidingstructure;a formula for the the anti-sliding move of subbed soils and a rule to distinguish the planesliding move of foundation subsoils with others.

Keywords： anti-sliding test of dragged concreting clip plates     the forms of the largest displacement and slidingmove     anti-sliding friction coefficient     design and calculation wethod    

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Study on anti-sliding stability of hydraulic structures on subbed soils (continued)

Zhou Junliang

Strategic Study of CAE 2011, Volume 13, Issue 9,   Pages 22-30

Abstract:

A study on the anti-sliding stability of hydraulic structures on subbedUsing the anti-sliding test results of dragged concreting pressure plate in foundation pits, the decreasedof anti-sliding shear stress and friction coefficient are also quantitatively determined.is suggested to use the maximum compressive stress σmax of eccentric load to predict structure displacement, sliding and creepy slippage of subbed soil, to determine sliding contour creep, and limit the maximum

Keywords： anti-sliding test of dragged concreting pressure plate     strength envelop of shear stress     friction coefficient     forms of displacement and sliding     creep slippage of subbed soil     design and calculation method    

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Genome-edited crops: how to move them from laboratory to market

Kunling CHEN, Caixia GAO

Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 2,   Pages 181-187 doi: 10.15302/J-FASE-2020332

Abstract:

Recent breakthroughs in CRISPR technology allow specific genome manipulation of almost all crops and have initiated a revolution in precision crop breeding. Rationally-based regulation and widespread public acceptance are needed to propel genome-edited crops from laboratory to market and to translate this innovative technology into agricultural productivity.

Keywords： CRISPR/Cas     genome editing     base editing     precision breeding     regulation    

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Will Germany move into a situation with unsecured power supply?

Harald SCHWARZ

Frontiers in Energy 2019, Volume 13, Issue 3,   Pages 551-570 doi: 10.1007/s11708-019-0641-z

Abstract: implemented a commission (often called “The German Coal Commission”) to propose a time line: how Germany can move

Keywords： CO2 reduction     mobility sector     renewable generation     coal commission     secured power generation capacity     reliable power supply     power-to-gas     power-to-heat    

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Robust SVM-direct torque control of induction motor based on sliding mode controller and sliding mode

Abdelkarim AMMAR,Amor BOUREK,Abdelhamid BENAKCHA

Frontiers in Energy 2020, Volume 14, Issue 4,   Pages 836-849 doi: 10.1007/s11708-017-0444-z

Abstract: It describes a coupling of sliding mode direct torque control (DTC) with sliding mode flux and speedThis algorithm uses direct torque control basics and the sliding mode approach.The sliding mode controller is used to generate reference voltages in stationary frame and give themThe second aim of this paper is to design a sliding mode speed/flux observer which can improve the control

Keywords： induction motor     direct torque control (DTC)     space vector modulation (SVM)     sliding mode control (SMC)     sliding mode observer (SMO)     dS1104    

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An adaptive sliding mode control technology for weld seam tracking

Jie LIU,Youmin HU,Bo WU,Kaibo ZHOU,Mingfeng GE

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 1,   Pages 95-101 doi: 10.1007/s11465-015-0332-3

Abstract:

A novel adaptive sliding mode control algorithm is derived to deal with seam tracking control problemalgorithm enables better high-precision tracking performance with chattering-free than traditional sliding

Keywords： weld seam tracking     welding robotic manipulator     adaptive control     sliding mode control    

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Finite element modeling of cable sliding and its effect on dynamic response of cable-supported truss

Yujie YU, Zhihua CHEN, Renzhang YAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1227-1242 doi: 10.1007/s11709-019-0551-5

Abstract: cable-supported structures usually bears high tension forces, and clip joints may fail to resist cable slidingA analytical method that considers the dynamic cable sliding effect is proposed in this paper.The cable sliding effect and the frictional tension loss are solved with the original length method thatThen, the balanced tension distributions are calculated after frictional sliding.During seismic excitations, the cable sliding behavior in the cable-supported truss have an averaging

Keywords： sliding cable     explicit solution framework     original length method     seismic response     cable rupture    

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Second-Largest Cryptocurrency Slashes Energy Use

Mitch Leslie

Engineering 2023, Volume 25, Issue 6,   Pages 6-8 doi: 10.1016/j.eng.2023.04.003

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Efficient dynamic pruning on largest scores first (LSF) retrieval

Kun JIANG,Yue-xiang YANG

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 1,   Pages 1-14 doi: 10.1631/FITEE.1500190

Abstract: We propose another novel exhaustive index traversal scheme called largest scores first (LSF) retrieval, in which the candidates are first selected in the posting list of important query terms with the largest

Keywords： Inverted index     Index traversal     Query latency     Largest scores first (LSF) retrieval     Dynamic pruning    

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Lateral displacement of soft ground under vacuum pressure and surcharge load

Chin-Yee ONG, Jin-Chun CHAI

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 239-248 doi: 10.1007/s11709-011-0110-1

Abstract: Surcharge load (e.g. embankment fill) will induce settlement and outward lateral displacement, whilevacuum pressure will induce settlement and inward lateral displacement of a ground.Ideally, combination of surcharge load and vacuum pressure can reduce or minimize the lateral displacementFor the conditions investigated, the results indicate that the outward lateral displacement increasesAlso, it is shown that for a given and condition, lateral displacement reduces with the increase

Keywords： vacuum consolidation     lateral displacement     PVD     finite element analysis     surcharge load    

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Unnormalized and normalized forms of gefura measures in directed and undirected networks

Raf GUNS,Ronald ROUSSEAU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 4,   Pages 311-320 doi: 10.1631/FITEE.1400425

Abstract: In some networks nodes belong to predefined groups (e.g., authors belong to institutions). Common network centrality measures do not take this structure into account. Gefura measures are designed as indicators of a node’s brokerage role between such groups. They are defined as variants of betweenness centrality and consider to what extent a node belongs to shortest paths between nodes from different groups. In this article we make the following new contributions to their study: (1) We systematically study unnormalized gefura measures and show that, next to the ‘structural’ normalization that has hitherto been applied, a ‘basic’ normalization procedure is possible. While the former normalizes at the level of groups, the latter normalizes at the level of nodes. (2) Treating undirected networks as equivalent to symmetric directed networks, we expand the definition of gefura measures to the directed case. (3) It is shown how Brandes’ algorithm for betweenness centrality can be adjusted to cover these cases.

Keywords： Networks subdivided in groups     Partitions     Gefura measures     Q-measures     Brokerage role     Directed and undirected networks     Brandes’     algorithm    

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Influence of advanced engineering measures on displacement and stress field of surrounding rock in tunnels

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0966-x

Abstract: A numerical method was used to investigate the influence of LRAF methods on the stress and displacementThe numerical results indicated that the anchor cable and grouting modification reduced the displacementThe anti-fault cavern resisted the dislocation displacement and reduced the maximum dislocation magnitude, displacement gradient, and shear stress.

Keywords： anti-fault effect     engineering measures     LRAF method     stress and displacement field     tunnel-crossing    

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Output tracking control of mobile manipulators based on dynamical sliding-mode control

WUYuxiang, FENG Ying, HU Yueming

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 110-115 doi: 10.1007/s11465-007-0019-5

Abstract: A dynamical sliding-mode controller is devised to track the output of mobile manipulators.Moreover, a design method of the dynamical sliding-mode controller that is applied to the output trackingThe simulation results indicate that the dynamical sliding-mode controller can not only track the giventrajectory correctly but also reduce the chattering of sliding-mode control system considerably.

Keywords： lower-dimensional     nonlinear     trajectory     tracking     diffeomorphism    

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DFIG sliding mode control fed by back-to-back PWM converter with DC-link voltage control for variable

Youcef BEKAKRA,Djilani BEN ATTOUS

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 345-354 doi: 10.1007/s11708-014-0330-x

Abstract: An original control strategy based on a variable structure control theory, also called sliding mode control

Keywords： fed induction generator (DFIG)     wind turbine     back-to-back pulse width modulation (PWM)     DC-link voltage     sliding    

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Quality control based on electrode displacement and force in resistance spot welding

Chuntao JI, Lipeng DENG

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4,   Pages 412-417 doi: 10.1007/s11465-010-0114-x

Abstract: The behaviors of electrode displacement and force during spot welding under various conditions, such

Keywords： aluminum     electrode displacement     electrode force     nugget size     data acquisition    

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Title Author Date Type Operation

Study on anti-sliding stability of hydraulic structures on subbed soils

Zhou Junliang

Journal Article

Study on anti-sliding stability of hydraulic structures on subbed soils (continued)

Zhou Junliang

Journal Article

Genome-edited crops: how to move them from laboratory to market

Kunling CHEN, Caixia GAO

Journal Article

Will Germany move into a situation with unsecured power supply?

Harald SCHWARZ

Journal Article

Robust SVM-direct torque control of induction motor based on sliding mode controller and sliding mode

Abdelkarim AMMAR,Amor BOUREK,Abdelhamid BENAKCHA

Journal Article

An adaptive sliding mode control technology for weld seam tracking

Jie LIU,Youmin HU,Bo WU,Kaibo ZHOU,Mingfeng GE

Journal Article

Finite element modeling of cable sliding and its effect on dynamic response of cable-supported truss

Yujie YU, Zhihua CHEN, Renzhang YAN

Journal Article

Second-Largest Cryptocurrency Slashes Energy Use

Mitch Leslie

Journal Article

Efficient dynamic pruning on largest scores first (LSF) retrieval

Kun JIANG,Yue-xiang YANG

Journal Article

Lateral displacement of soft ground under vacuum pressure and surcharge load

Chin-Yee ONG, Jin-Chun CHAI

Journal Article

Unnormalized and normalized forms of gefura measures in directed and undirected networks

Raf GUNS,Ronald ROUSSEAU

Journal Article

Influence of advanced engineering measures on displacement and stress field of surrounding rock in tunnels

Journal Article

Output tracking control of mobile manipulators based on dynamical sliding-mode control

WUYuxiang, FENG Ying, HU Yueming

Journal Article

DFIG sliding mode control fed by back-to-back PWM converter with DC-link voltage control for variable

Youcef BEKAKRA,Djilani BEN ATTOUS

Journal Article

Quality control based on electrode displacement and force in resistance spot welding

Chuntao JI, Lipeng DENG

Journal Article