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Wavelet-based iterative data enhancement for implementation in purification of modal frequency for extremely

Hassan YOUSEFI, Alireza TAGHAVI KANI, Iradj MAHMOUDZADEH KANI, Soheil MOHAMMADI

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 446-472 doi: 10.1007/s11709-019-0605-8

Abstract: The main purpose of the present study is to enhance high-level noisy data by a wavelet-based iterativeFor this iterative method, a simple computational approach is proposed to estimate the dynamic threshold

Keywords： ambient vibration test     high level noise     iterative signal enhancement     wavelet     cross and autocorrelation    

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Iterative finite element model of nonlinear viscoplastic analyses for blended granular porous media

WU Yuching, ZHU Cimian

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 4,   Pages 464-473 doi: 10.1007/s11709-007-0063-6

Abstract: The iterative finite element model, in which an element is used to represent a single particle, is generated

Keywords： nonlinear viscoplastic     iterative     behavior     multiple-material    

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Improving prodeoxyviolacein production via multiplex SCRaMbLE iterative cycles

Juan Wang, Bin Jia, Zexiong Xie, Yunxiang Li, Yingjin Yuan

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 4,   Pages 806-814 doi: 10.1007/s11705-018-1739-2

Abstract: and continuously generate genome diversification with the desired phenotype, the multiplex SCRaMbLE iterative

Keywords： synthetic biology     genome rearrangement     prodeoxyviolacein     SCRaMbLE     Saccharomyces cerevisiae    

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A fast compound direct iterative algorithm for solving transient line contact elastohydrodynamic lubrication

Jian LIU,Yuxue CHEN,Zhenzhi HE,Shunian YANG

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 2,   Pages 156-167 doi: 10.1007/s11465-014-0297-7

Abstract:

A fast compound direct iterative algorithm for solving transient line contact elastohydrodynamicFirst, by introducing a special matrix splitting iteration method into the traditional compound direct iterativethe new algorithm increases computing speed several times more than the traditional compound direct iterative

Keywords： elastohydrodynamic lubrication     transient     line contact     matrix splitting iteration method     the Thomas method    

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Fuzzy iterative learning control and numerical simulation of tall building seismic response control

Wang Quan,Wang Jianguo,Zhang Mingxiang

Strategic Study of CAE 2011, Volume 13, Issue 4,   Pages 81-86

Abstract: text-align: justify;">With research into the fundamental ideas of self tuning control, fuzzy logic and iterativelearning control (ILC), this paper provides a new type of fuzzy iterative learning control strategyIt improves the robustness of the iterative learning control.The result of simulation shows that fuzzy iterative learning control strategy can control the seismic

Keywords： tall building     seismic response     iterative learning control     fuzzy control    

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Disturbance rejection via iterative learning controlwith a disturbance observer for active magnetic bearing None

Ze-zhi TANG, Yuan-jin YU, Zhen-hong LI, Zheng-tao DING

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 1,   Pages 131-140 doi: 10.1631/FITEE.1800558

Abstract:

Although standard iterative learning control (ILC) approaches can achieve perfect tracking for active

Keywords： Active magnetic bearings (AMBs)     Iterative learning control (ILC)     Disturbance observer    

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Non-iterative parameter estimation of the 2R-1Cmodel suitable for low-cost embedded hardware Article

Mitar SIMIĆ, Zdenka BABIĆ, Vladimir RISOJEVIĆ, Goran M. STOJANOVIĆ

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 3,   Pages 476-490 doi: 10.1631/FITEE.1900112

Abstract: Parameter estimation of the 2R-1C model is usually performed using iterative methods that require high-performanceIn this study, we propose the quadratic interpolation non-iterative parameter estimation (QINIPE) methodreduces the number of required measurement points by 80% in comparison with our previously reported non-iterativeBoth non-iterative methods are implemented on a microcontroller-based device; the estimation accuracy

Keywords： 2R-1C model     Embedded systems     Parameter estimation     Non-iterative methods     Quadratic interpolation    

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Iterative HOEO fusion strategy: a promising tool for enhancing bearing fault feature

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0725-z

Abstract: As parameter independent yet simple techniques, the energy operator (EO) and its variants have received considerable attention in the field of bearing fault feature detection. However, the performances of these improved EO techniques are subjected to the limited number of EOs, and they cannot reflect the non-linearity of the machinery dynamic systems and affect the noise reduction. As a result, the fault-related transients strengthened by these improved EO techniques are still subject to contamination of strong noises. To address these issues, this paper presents a novel EO fusion strategy for enhancing the bearing fault feature nonlinearly and effectively. Specifically, the proposed strategy is conducted through the following three steps. First, a multi-dimensional information matrix (MDIM) is constructed by performing the higher order energy operator (HOEO) on the analysis signal iteratively. MDIM is regarded as the fusion source of the proposed strategy with the properties of improving the signal-to-interference ratio and suppressing the noise in the low-frequency region. Second, an enhanced manifold learning algorithm is performed on the normalized MDIM to extract the intrinsic manifolds correlated with the fault-related impulses. Third, the intrinsic manifolds are weighted to recover the fault-related transients. Simulation studies and experimental verifications confirm that the proposed strategy is more effective for enhancing the bearing fault feature than the existing methods, including HOEOs, the weighting HOEO fusion, the fast Kurtogram, and the empirical mode decomposition.

Keywords： higher order energy operator     fault diagnosis     manifold learning     rolling element bearing     information fusion    

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Applications of traditional pump design theory to artificial heart and CFD simulation

WANG Yingpeng, SONG Xinwei, YING Chuntong

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 504-507 doi: 10.1007/s11708-008-0059-5

Abstract: The pump head range and the velocity triangle were introduced and an iterative approach was utilized

Keywords： computational     high-efficiency artificial     iterative approach     artificial     traditional    

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Adaptive Optimization of Correlation-Interval for DopplerSpread Estimation and Its Iterative Implement

Zhang Peng,Bi Guangguo,Cao Xiuying,Yuan Xiaohui

Strategic Study of CAE 2007, Volume 9, Issue 6,   Pages 71-76

Abstract: Based on them an iterative correlation-interval optimized (CIO) algorithm is proposed.

Keywords： Doppler spread     autocorrelation     optimization     iteration    

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A New Real-time Detecting Method for Harmonic Current Based on Iterative Algorithm in Active Power Filter

Li Zicheng,Sun Yukun

Strategic Study of CAE 2006, Volume 8, Issue 1,   Pages 46-50

Abstract: foundation of load current analysis, a new real-time detecting method for harmonic current based on iterative

Keywords： active power filter     harmonics current     active current     reactive current    

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Enhanced solution to the surface–volume–surface EFIE for arbitrary metal–dielectric composite objects Research Article

Han WANG, Mingjie PANG, Hai LIN

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 7,   Pages 1098-1109 doi: 10.1631/FITEE.2100387

Abstract: The surface–volume–surface electric field (SVS-EFIE) can lead to complex equations, laborious implementation, and unacceptable computational complexity in the . Therefore, a general matrix equation (GME) is proposed for electromagnetic scattering from arbitrary metal–dielectric s, and its enhanced solution is presented in this paper. In previous works, MoM solution formulation of SVS-EFIE considering only three-region metal–dielectric composite scatters was presented, and the two-stage process resulted in two integral operators in SVS-EFIE, which is arduous to implement and is incapable of reducing computational complexity. To address these difficulties, GME, which is versatile for homogeneous objects and s consisting of more than three sub-regions, is proposed for the first time. Accelerated solving policies are proposed for GME based on coupling degree concerning the spacing between sub-regions, and the coupling degree standard can be adaptively set to balance the accuracy and efficiency. In this paper, the reformed is applied for the strong coupling case, and the is presented for the weak coupling case. Parallelism can be easily applied in the enhanced solution. Numerical results demonstrate that the proposed method requires only 11.6% memory and 11.8% CPU time on average compared to the previous direct solution.

Keywords： Composite object     Integral equation     Method of moments (MoM)     Addition theorem     Iterative method    

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Joint compressed sensing imaging and phase adjustment via an iterative method for multistatic passive None

Jue WANG, Jun WANG

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 4,   Pages 557-568 doi: 10.1631/FITEE.1601423

Abstract: The resolution of the multistatic passive radar imaging system (MPRIS) is poor due to the narrow bandwidth of the signal transmitted by illuminators of opportunity. Moreover, the inaccuracies caused by the inaccurate tracking system or the error position measurement of illuminators or receivers can deteriorate the quality of an image. To improve the performance of an MPRIS, an imaging method based on the tomographic imaging principle is presented. Then the compressed sensing technique is extended to the MPRIS to realize high-resolution imaging. Furthermore, a phase correction technique is developed for compen-sating for phase errors in an MPRIS. Phase errors can be estimated by iteratively solving an equation that is derived by minimizing the mean recovery error of the reconstructed image based on the principle of fixed-point iteration technique. The technique is nonparametric and can be used to estimate phase errors of any form. The effectiveness and convergence of the technique are confirmed by numerical simulations.

Keywords： Multistatic passive radar     Compressed sensing     Phase adjustment     Fixed-point iteration technique    

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Optimization of a robust collaborative-relay beamforming design for simultaneous wireless information and power transfer None

Lu-lu ZHAO, Xing-long JIANG, Li-min LI, Guo-qiang ZENG, Hui-jie LIU

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 11,   Pages 1432-1443 doi: 10.1631/FITEE.1601268

Abstract: Moreover, the solution returned by the SDR technique may not always be rank-one; thus, an iterative sub-gradient

Keywords： information and power transfer     Channel state information     Robust beamforming     Semidefinite relaxation     Iterative    

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Spatial channel pairing based coherent combining for relay networks Article

Feng SHU,Xiao-hui HUANG,Jin-song HU,Ting-ting LIU,Ri-qing CHEN,Xiao-hu YOU,Jun LI,Jin WANG

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 9,   Pages 938-945 doi: 10.1631/FITEE.1500436

Abstract: Finally, an alternating iterative structure is developed.results and analysis show that, given the symbol error rate and data rate, the proposed alternating iterativefilter, MRC plus antenna selection, and distributed space-time block coding due to the use of SCP and iterative

Keywords： Spatial channel pairing     Coherent combining     Alternating iterative structure     Symbol error rate     Distributed    

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Title Author Date Type Operation

Wavelet-based iterative data enhancement for implementation in purification of modal frequency for extremely

Hassan YOUSEFI, Alireza TAGHAVI KANI, Iradj MAHMOUDZADEH KANI, Soheil MOHAMMADI

Journal Article

Iterative finite element model of nonlinear viscoplastic analyses for blended granular porous media

WU Yuching, ZHU Cimian

Journal Article

Improving prodeoxyviolacein production via multiplex SCRaMbLE iterative cycles

Juan Wang, Bin Jia, Zexiong Xie, Yunxiang Li, Yingjin Yuan

Journal Article

A fast compound direct iterative algorithm for solving transient line contact elastohydrodynamic lubrication

Jian LIU,Yuxue CHEN,Zhenzhi HE,Shunian YANG

Journal Article

Fuzzy iterative learning control and numerical simulation of tall building seismic response control

Wang Quan,Wang Jianguo,Zhang Mingxiang

Journal Article

Disturbance rejection via iterative learning controlwith a disturbance observer for active magnetic bearing

Ze-zhi TANG, Yuan-jin YU, Zhen-hong LI, Zheng-tao DING

Journal Article

Non-iterative parameter estimation of the 2R-1Cmodel suitable for low-cost embedded hardware

Mitar SIMIĆ, Zdenka BABIĆ, Vladimir RISOJEVIĆ, Goran M. STOJANOVIĆ

Journal Article

Iterative HOEO fusion strategy: a promising tool for enhancing bearing fault feature

Journal Article

Applications of traditional pump design theory to artificial heart and CFD simulation

WANG Yingpeng, SONG Xinwei, YING Chuntong

Journal Article

Adaptive Optimization of Correlation-Interval for DopplerSpread Estimation and Its Iterative Implement

Zhang Peng,Bi Guangguo,Cao Xiuying,Yuan Xiaohui

Journal Article

A New Real-time Detecting Method for Harmonic Current Based on Iterative Algorithm in Active Power Filter

Li Zicheng,Sun Yukun

Journal Article

Enhanced solution to the surface–volume–surface EFIE for arbitrary metal–dielectric composite objects

Han WANG, Mingjie PANG, Hai LIN

Journal Article

Joint compressed sensing imaging and phase adjustment via an iterative method for multistatic passive

Jue WANG, Jun WANG

Journal Article

Optimization of a robust collaborative-relay beamforming design for simultaneous wireless information and power transfer

Lu-lu ZHAO, Xing-long JIANG, Li-min LI, Guo-qiang ZENG, Hui-jie LIU

Journal Article

Spatial channel pairing based coherent combining for relay networks

Feng SHU,Xiao-hui HUANG,Jin-song HU,Ting-ting LIU,Ri-qing CHEN,Xiao-hu YOU,Jun LI,Jin WANG

Journal Article