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Robust switched fractional controller for performance improvement of single phase active power filter

H. AFGHOUL,F. KRIM,D. CHIKOUCHE,A. BEDDAR

Frontiers in Energy 2016, Volume 10, Issue 2,   Pages 203-212 doi: 10.1007/s11708-015-0381-7

Abstract: The proposed switched fractional controller (SFC) consists of a conventional PI controller, a fractionalorder PI (FO-PI) controller and a decision maker that switches between them.Commonly, the conventional PI controller is used in regulation loops due to its advantages in steady-stateOn the other hand, the FO-PI controller overcomes these drawbacks but it causes dramatic degradationThus, the purpose of this paper is to switch to the PI controller in steady-state to obtain the best

Keywords： conventional PI controller     fractional calculus (FC)     total harmonic distortion (THD)     Oustaloup continuous    

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Bandwidth-limited active suspension controller for an off-road vehicle based on co-simulation technology

FENG Jinzhi, ZHENG Songlin, YU Fan

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 111-117 doi: 10.1007/s11465-008-0020-7

Abstract: This paper presents the design process of a controller for bandwidth-limited active hydro-pneumatic suspensionSecond, a combined PID and fuzzy controller is designed for the bandwidth-limited active suspension systemmulti-body dynamic vehicle model to enable the co-simulation to run repeatedly until a more practical controllerIn the end, the proposed active suspension system is compared with a conventional passive system.

Keywords： co-simulation technology     exchange interface     conventional     bandwidth-limited     algorithm    

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Performance of PI controller for control of active and reactive power in DFIG operating in a grid-connected

Azzouz TAMAARAT,Abdelhamid BENAKCHA

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 371-378 doi: 10.1007/s11708-014-0318-6

Abstract: the grid, based on vector control concept (with stator flux or voltage orientation) with classical PI

Keywords： wind power     doubly fed induction generator (DFIG)     vector control     active power     reactive power     maximum power point tracking (MPPT)    

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Micro － blind mesh thermal control study and simulation of nano-satellite

Yang Juan,Li Yunze,Wang Jun

Strategic Study of CAE 2008, Volume 10, Issue 7,   Pages 169-172

Abstract: dynamic characteristics model of the spherical nano-satellite was established.Based on the model,a fuzzy PIshunt-wound controller was designed.Results show that this new controller is superior to the fuzzy controller and PID controller in that

Keywords： nano-satellite     micro-blind mesh     fuzzy PI controller     simulation    

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Structural parameter design method for a fast-steering mirror based on a closed-loop bandwidth

Guozhen CHEN, Pinkuan LIU, Han DING

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 1,   Pages 55-65 doi: 10.1007/s11465-019-0545-y

Abstract: In accordance with the transfer function, the notch filter and proportional-integral (PI) feedback controllerare designed as a closed-loop controller.The gains of the PI controller are determined by maximizing the closed-loop bandwidth while ensuring

Keywords： fast-steering mirror     structural parameter     PI controller     bandwidth     notch filter    

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Design of a fractional PI None

Pritesh SHAH, Sudhir AGASHE, Anand J. KULKARNI

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 3,   Pages 437-445 doi: 10.1631/FITEE.1601495

Abstract: for the first time to optimize the parameters of the fractional proportionalintegral-derivative (PID) controllerThe performance of the CI method in designing the fractional PID controller was validated and compared

Keywords： Cohort intelligence     Fractional calculus     Fractional PID controller     Tuning    

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Telomeric impact of conventional chemotherapy

Yiming Lu, Waiian Leong, Olivier Guérin, Eric Gilson, Jing Ye

Frontiers of Medicine 2013, Volume 7, Issue 4,   Pages 411-417 doi: 10.1007/s11684-013-0293-z

Abstract: evidence showed that telomere stability can be more affected than the bulk of the genome by several conventional

Keywords： telomere     antineoplasic drugs     conventional chemotherapies    

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Review of 4Pi Fluorescence Nanoscopy Review

Xiang Hao, Yiming Li, Shuang Fu, Yanghui Li, Yingke Xu, Cuifang Kuang, Xu Liu

Engineering 2022, Volume 11, Issue 4,   Pages 146-153 doi: 10.1016/j.eng.2020.07.028

Abstract: An important milestone in this pursuit is the coherent utilization of two opposing objectives (4Pi geometryHerein, we review the recent progress in 4Pi nanoscopy, which provides a 3D, non-invasive, diffraction-unlimitedThis review includes both the targeted and stochastic switching modalities of 4Pi nanoscopy.The schematics, principles, applications, and future potential of 4Pi nanoscopy are discussed in detail

Keywords： Fluorescence nanoscopy     Super-resolution imaging     4Pi nanoscopy     IsoSTED     4Pi-SMLM    

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RGS16 regulated by let-7c-5p promotes glioma progression by activating PI3K-AKT pathway

Frontiers of Medicine 2023, Volume 17, Issue 1,   Pages 143-155 doi: 10.1007/s11684-022-0929-y

Abstract: Gliomas are the most common central nervous system tumours; they are highly aggressive and have a poor prognosis. RGS16 belongs to the regulator of G-protein signalling (RGS) protein family, which plays an important role in promoting various cancers, such as breast cancer, pancreatic cancer, and colorectal cancer. Moreover, previous studies confirmed that let-7c-5p, a well-known microRNA, can act as a tumour suppressor to regulate the progression of various tumours by inhibiting the expression of its target genes. However, whether RGS16 can promote the progression of glioma and whether it is regulated by miR let-7c-5p are still unknown. Here, we confirmed that RGS16 is upregulated in glioma tissues and that high expression of RGS16 is associated with poor survival. Ectopic deletion of RGS16 significantly suppressed glioma cell proliferation and migration both in vitro and in vivo. Moreover, RGS16 was validated as a direct target gene of miR let-7c-5p. The overexpression of miR let-7c-5p obviously downregulated the expression of RGS16, and knocking down miR let-7c-5p had the opposite effect. Thus, we suggest that the suppression of RGS16 by miR let-7c-5p can promote glioma progression and may serve as a potential prognostic biomarker and therapeutic target in glioma.

Keywords： RGS16     let-7c-5p     glioma     proliferation     migration    

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Bifurcation-based fractional-order PI None

Karima RABAH, Samir LADACI, Mohamed LASHAB

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 2,   Pages 180-191 doi: 10.1631/FITEE.1601543

Abstract: propose a novel approach called the robust fractional-order proportional-integral-derivative (FOPID) controllerWe extract an initial set of controller parameters, which are subsequently optimized using a quadraticsystems, namely the multi-scroll Chen system and the Genesio-Tesi system, we show that the fractional PIλDμcontroller provides the best closed-loop system performance in stabilizing the unstable fixed points

Keywords： Fractional order system     Bifurcation diagram     Fractional PIλDμ controller     Multi-scroll Chen chaotic system    

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Oxygen reduction electrocatalysis: From conventional to single-atomic platinum-based catalysts for proton

Frontiers in Energy doi: 10.1007/s11708-023-0907-3

Abstract: strategies of alloying/nanostructuring Pt particles and modifying/innovating supports in developing conventional

Keywords： oxygen reduction electrocatalysis     Pt single-atom catalysts     conventional Pt-based catalysts     design    

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Xiao Ke Qing improves glycometabolism and ameliorates insulin resistance by regulating the PI3K/Akt pathway

Xiaoqing Li, Xinxin Li, Genbei Wang, Yan Xu, Yuanyuan Wang, Ruijia Hao, Xiaohui Ma

Frontiers of Medicine 2018, Volume 12, Issue 6,   Pages 688-696 doi: 10.1007/s11684-018-0662-8

Abstract: Moreover, XKQ can ameliorate insulin resistance and upregulate the expression of IRS-1, PI3K (p85), p-AktXKQ is an effective drug for T2DM by ameliorating insulin resistance and regulating the PI3K/Akt signaling

Keywords： XKQ     type 2 diabetes mellitus     KKAy mice     PI3K/Akt pathway     diabetic liver disease    

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Esophageal pulse oximetry is more accurate and detects hypoxemia earlier than conventional pulse oximetry

Guo Chen, Zhaoqiong Zhu*, Jin Liu, Wei Wei

Frontiers of Medicine 2012, Volume 6, Issue 4,   Pages 406-410 doi: 10.1007/s11684-012-0217-3

Abstract: oximetry probe on patients during controlled hypoxemia in comparison to measurements obtained with conventionalSoesO2 is more accurate and enables earlier detection of hypoxemia when compared to conventional

Keywords： esophageal pulse oximetry     conventional pulse oximetry     hypoxemia    

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Ultraviolet-B induced expression of hypoxia-inducible factor 1α, transferrin receptor through EGFR/PI3K

LI Yanhua, BI Zhigang

Frontiers of Medicine 2007, Volume 1, Issue 1,   Pages 79-86 doi: 10.1007/s11684-007-0016-4

Abstract: The EGFR/PI3K/AKT signaling pathway was required for the induction of HIF-1α and TfR expression inducedPI3K inhibitors, LY294002 and wortmannin, inhibited HIF-1?We conclude that UVB induces TfR and HIF-1αexpressions via EGFR/PI3K/AKT/DEC1 signaling pathway.
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Techno-economic characteristics of wastewater treatment plants retrofitted from the conventional activated

Frontiers of Environmental Science & Engineering doi: 10.1007/s11783-021-1483-6

Abstract: itemcontent>

While a growing number of wastewater treatment plants (WWTPs) are being retrofitted from the conventional

Keywords： Membrane bioreactor (MBR)     Conventional activated sludge (CAS)     Cost-benefit analysis     Data envelopment    

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Title Author Date Type Operation

Robust switched fractional controller for performance improvement of single phase active power filter

H. AFGHOUL,F. KRIM,D. CHIKOUCHE,A. BEDDAR

Journal Article

Bandwidth-limited active suspension controller for an off-road vehicle based on co-simulation technology

FENG Jinzhi, ZHENG Songlin, YU Fan

Journal Article

Performance of PI controller for control of active and reactive power in DFIG operating in a grid-connected

Azzouz TAMAARAT,Abdelhamid BENAKCHA

Journal Article

Micro － blind mesh thermal control study and simulation of nano-satellite

Yang Juan,Li Yunze,Wang Jun

Journal Article

Structural parameter design method for a fast-steering mirror based on a closed-loop bandwidth

Guozhen CHEN, Pinkuan LIU, Han DING

Journal Article

Design of a fractional PI

Pritesh SHAH, Sudhir AGASHE, Anand J. KULKARNI

Journal Article

Telomeric impact of conventional chemotherapy

Yiming Lu, Waiian Leong, Olivier Guérin, Eric Gilson, Jing Ye

Journal Article

Review of 4Pi Fluorescence Nanoscopy

Xiang Hao, Yiming Li, Shuang Fu, Yanghui Li, Yingke Xu, Cuifang Kuang, Xu Liu

Journal Article

RGS16 regulated by let-7c-5p promotes glioma progression by activating PI3K-AKT pathway

Journal Article

Bifurcation-based fractional-order PI

Karima RABAH, Samir LADACI, Mohamed LASHAB

Journal Article

Oxygen reduction electrocatalysis: From conventional to single-atomic platinum-based catalysts for proton

Journal Article

Xiao Ke Qing improves glycometabolism and ameliorates insulin resistance by regulating the PI3K/Akt pathway

Xiaoqing Li, Xinxin Li, Genbei Wang, Yan Xu, Yuanyuan Wang, Ruijia Hao, Xiaohui Ma

Journal Article

Esophageal pulse oximetry is more accurate and detects hypoxemia earlier than conventional pulse oximetry

Guo Chen, Zhaoqiong Zhu*, Jin Liu, Wei Wei

Journal Article

Ultraviolet-B induced expression of hypoxia-inducible factor 1α, transferrin receptor through EGFR/PI3K

LI Yanhua, BI Zhigang

Journal Article

Techno-economic characteristics of wastewater treatment plants retrofitted from the conventional activated

Journal Article