Resource Type

Journal Article 375

Conference Videos 21

Conference Information 1

Year

2023 18

2022 39

2021 27

2020 30

2019 21

2018 23

2017 20

2016 16

2015 10

2014 16

2013 4

2012 13

2011 12

2010 10

2009 13

2008 22

2007 19

2006 15

2005 13

2004 10

open ︾

Keywords

information 19

information technology 12

characteristic 7

building information modeling 5

Geographic information system 4

geographic information system 4

COVID-19 3

Characteristic 3

China 3

project management 3

Building Information Modeling 2

Cyber-physical systems 2

DX pile 2

Database schemata 2

Information schema constructs 2

Internet Plus 2

SMF genotypes 2

SMF instances 2

SMF phenotypes 2

open ︾

Search scope:

排序： Display mode:

Weak characteristic information extraction from early fault of wind turbine generator gearbox

Xiaoli XU, Xiuli LIU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 357-366 doi: 10.1007/s11465-017-0423-4

Abstract:

Given the weak early degradation characteristic information during early fault evolution in gearboxgenerator, traditional singular value decomposition (SVD)-based denoising may result in loss of useful informationA weak characteristic information extraction based on µ-SVD and local mean decompositionExperimental results show that this method can significantly weaken signal noise, effectively extract the weakcharacteristic information of early fault, and facilitate the early fault warning and dynamic predictive

Keywords： wind turbine generator gearbox     µ-singular value decomposition     local mean decomposition     weak characteristicinformation extraction     early fault warning    

HTML PDF Collect

Analysis and stabilization control of a voltage source controlled wind farm under weak grid conditions

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 943-955 doi: 10.1007/s11708-021-0793-5

Abstract: This paper investigates and discusses the interaction stability issues of a wind farm with weak gridHowever, when it is applied to multiple WTs within a wind farm, its weak-grid performance regarding theof a stability margin quantification index, not only the interactions between the wind farm and the weak

Keywords： weak grids     voltage source (VS) control     wind turbine (WT)     stabilization control     wind farm     inertial    

HTML PDF Collect

Enhancement of sludge gravitational thickening with weak ultrasound

Panyue ZHANG, Tian WAN, Guangming ZHANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 753-760 doi: 10.1007/s11783-011-0368-5

Abstract: of sonication on enhancing the sludge gravitational thickening with very low energy dose, so called “weakResults showed that weak sonication significantly changed the sludge settlability and the main mechanismWeak sonication (<680 kJ·kg DS) improved the sludge gravitational thickening while high ultrasonic energyWeak sonication could substitute expensive polyelectrolyte coagulant for sludge thickening.Combination of weak sonication and polyelectrolyte could further reduce the settling time to 6 h.

Keywords： activated sludge     sonication     settlability     dry weight     extracellular polymeric substances     polyelectrolyte    

HTML PDF Collect

Modeling and analysis of magnetic dipoles in weak magnetic field

WANG Zhaoxia, ZHANG Weimin, LIU Hongguang

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 2,   Pages 222-225 doi: 10.1007/s11465-008-0028-z

Abstract: The formula to compute the normal component of the weak magnetic field is deduced based on the spatial

Keywords： geomagnetic     theory     important criterion     magnetic leakage     normal component    

HTML PDF Collect

Stability analysis on Tingzikou gravity dam along deep-seated weak planes during earthquake

Weiping HE, Yunlong HE

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 1,   Pages 69-75 doi: 10.1007/s11709-012-0146-x

Abstract: The stability of a gravity dam against sliding along deep-seated weak planes is a universal and importantThere is no recommended method for stability analysis of the dam on deep-seated weak planes under earthquakesearching a proper way to evaluate the seismic safety of the dam against sliding along deep-seated weakplanes and the probable failure modes of dam on deep-seated weak planes during earthquake.in the second mode, the dam together with part foundation will slide along the path consist of the weak

Keywords： gravity dam     deep-seated weak planes     stability against sliding     earthquake    

HTML PDF Collect

Experimental study on the progressive failure and its anchoring effect of weak-broken rock vertical slope

Hehua ZHU, Qianwei XU, Wenqi DING, Feng HUANG

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 208-224 doi: 10.1007/s11709-011-0111-0

Abstract: To improve the understanding on the failure behavior and its anchoring effect of weak-broken rock slope

Keywords： progressive failure     weak-broken rock     slope     model test     bolt    

HTML PDF Collect

Feedback linearization based control for weak grid connected PV system under normal and abnormal conditions

Rahul SHARMA,Sathans SUHAG

Frontiers in Energy 2020, Volume 14, Issue 2,   Pages 400-409 doi: 10.1007/s11708-017-0459-5

Abstract: This paper proposes a control strategy for interface of distributed energy sources into the weak gridThe controller proposed has been implemented on the PV system connected with the weak grid using the

Keywords： PV system     grid interface     feedback linearization     inverter     LCL filter    

HTML PDF Collect

Analysis of the dynamic hysteresis characteristic of finger seal

LEI Yanni, CHEN Guoding

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 32-36 doi: 10.1007/s11465-007-0005-y

Abstract: The research about hysteresis characteristic of finger seal (FS), which was carried out based on theA mass spring damper dynamics model of FS system was proposed and the hysteresis characteristic of theThis work shows that the dynamics characteristic analysis of the FS is necessary and the dynamics model

Keywords： FS     necessary     hysteresis characteristic     optimization     spring    

HTML PDF Collect

Wavelet design for extracting weak fault feature based on lifting scheme

JIANG Hong-kai, WANG Zhong-sheng, HE Zheng-jia

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 2,   Pages 199-203 doi: 10.1007/s11465-006-0009-z

Abstract: Weak fault features of mechanical signals are usually immersed in noisy signals.A new wavelet method based on lifting scheme to match weak fault characteristics is proposed.engineering results confirm that the proposed method is better than other wavelet methods for extracting weakModulus maxima of the detail signal in every operation cycle are extracted, the position and time that weak

Keywords： misalignment     imbalance     particular     position     mechanical    

HTML PDF Collect

Extended stochastic resonance (SR) and its applications in weak mechanical signal processing

Niaoqing HU, Min CHEN, Guojun QIN, Lurui XIA, Zhongyin PAN, Zhanhui FENG,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 450-461 doi: 10.1007/s11465-009-0072-3

Abstract: This paper presents a method based on stochastic resonance (SR) to detect weak fault signal.Then, the frequency range of the weak signals that the SR model can detect is extended through a typeFinally, the method is applied to extract the weak characteristic component from heavy noise to indicate

Keywords： extended stochastic resonance (SR)     stability analysis of SR     scale transform     weak signal detection     incipient    

HTML PDF Collect

Blasting Flyrock Impact Analysis by Weak Interlayer and Its Control in Complicated Surroundings

Chen Bin,He Tiezhu,Zhao Mingsheng

Strategic Study of CAE 2014, Volume 16, Issue 11,   Pages 53-57

Abstract:

Analyzed the reasons and mechanism of blasting flyrock in weak interlayer,combined with weak interlayer impact generated by blasting flyrock to distinguish the differences offlying stone generated in the conditions of weak interlayer and general.In weak interlayer and urban area complex blasting environment, reasonable and effective control measures

Keywords： blasting flyrock     weak interlayer     towardsSblasting    

HTML PDF Collect

A block zero-padding method based on DCFT for L1 parameter estimations in weak signal and high dynamic

Chao WU,Lu-ping XU,Hua ZHANG,Wen-bo ZHAO

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 9,   Pages 796-804 doi: 10.1631/FITEE.1500058

Abstract: Weak L1 signal acquisition in a high dynamic environment primarily faces a challenge: the integrationzero-padding method based on a discrete chirp-Fourier transform (DCFT) for parameter estimations in weak

Keywords： Threshold detection     Discrete chirp-Fourier transform     Block zero-padding     High dynamic     Weak L1 signal    

HTML PDF Collect

Flow characteristic and wastewater treatment performance of a pilot-scale airlift oxidation ditch

Hongtao PANG, Hanchang SHI, Huiming SHI,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 4,   Pages 470-476 doi: 10.1007/s11783-009-0143-z

Abstract: diffuser and baffle as aerator was operated in a wastewater treatment plant (WWTP) to investigate its flow characteristic

Keywords： airlift oxidation ditch     flow characteristic     wastewater treatment    

HTML PDF Collect

Study on construction technique of large section sub-sea tunnel crossing the weak stratum

Huang Mingli,Lu Wei,Xu Hengguo,Tan Zhongsheng

Strategic Study of CAE 2009, Volume 11, Issue 7,   Pages 35-38

Abstract: >Xiang'an sub-sea tunnel is the first large section sub-sea tunnel in China, and will cross the weakthe excavation method,drainage technique and pre-reinforcement method of the tunnel when crossing the weak

Keywords： Xiamen Xiang’an sub-sea tunnel     weak stratum     construction technique    

HTML PDF Collect

Theoretical analysis of novel weak current sensor using FeCuNbSiB single nanocrystalline toroidal core

BAO Bing-hao, ZHU Da-qi, DING Jian-ning, LI Chang-sheng

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4,   Pages 439-442 doi: 10.1007/s11465-006-0054-7

Abstract: Based on the feature of the magnetic core, a novel non-contact type weak current sensor adopting single

Keywords： measuring     mathematical     Furthermore     transform     FeCuNbSiB nanocrystalline    

HTML PDF Collect

Title Author Date Type Operation

Weak characteristic information extraction from early fault of wind turbine generator gearbox

Xiaoli XU, Xiuli LIU

Journal Article

Analysis and stabilization control of a voltage source controlled wind farm under weak grid conditions

Journal Article

Enhancement of sludge gravitational thickening with weak ultrasound

Panyue ZHANG, Tian WAN, Guangming ZHANG

Journal Article

Modeling and analysis of magnetic dipoles in weak magnetic field

WANG Zhaoxia, ZHANG Weimin, LIU Hongguang

Journal Article

Stability analysis on Tingzikou gravity dam along deep-seated weak planes during earthquake

Weiping HE, Yunlong HE

Journal Article

Experimental study on the progressive failure and its anchoring effect of weak-broken rock vertical slope

Hehua ZHU, Qianwei XU, Wenqi DING, Feng HUANG

Journal Article

Feedback linearization based control for weak grid connected PV system under normal and abnormal conditions

Rahul SHARMA,Sathans SUHAG

Journal Article

Analysis of the dynamic hysteresis characteristic of finger seal

LEI Yanni, CHEN Guoding

Journal Article

Wavelet design for extracting weak fault feature based on lifting scheme

JIANG Hong-kai, WANG Zhong-sheng, HE Zheng-jia

Journal Article

Extended stochastic resonance (SR) and its applications in weak mechanical signal processing

Niaoqing HU, Min CHEN, Guojun QIN, Lurui XIA, Zhongyin PAN, Zhanhui FENG,

Journal Article

Blasting Flyrock Impact Analysis by Weak Interlayer and Its Control in Complicated Surroundings

Chen Bin,He Tiezhu,Zhao Mingsheng

Journal Article

A block zero-padding method based on DCFT for L1 parameter estimations in weak signal and high dynamic

Chao WU,Lu-ping XU,Hua ZHANG,Wen-bo ZHAO

Journal Article

Flow characteristic and wastewater treatment performance of a pilot-scale airlift oxidation ditch

Hongtao PANG, Hanchang SHI, Huiming SHI,

Journal Article

Study on construction technique of large section sub-sea tunnel crossing the weak stratum

Huang Mingli,Lu Wei,Xu Hengguo,Tan Zhongsheng

Journal Article

Theoretical analysis of novel weak current sensor using FeCuNbSiB single nanocrystalline toroidal core

BAO Bing-hao, ZHU Da-qi, DING Jian-ning, LI Chang-sheng

Journal Article