0000000000354204

AUTHOR

Xia Li

showing 7 related works from this author

Robust reliable control of uncertain discrete impulsive switched systems with state delays

2013

Published version of an article in the journal: Mathematical Problems in Engineering. Also available from the publisher at: http://dx.doi.org/10.1155/2013/197819 Open access This paper is concerned with the problem of robust reliable control for a class of uncertain discrete impulsive switched systems with state delays, where the actuators are subjected to failures. The parameter uncertainties are assumed to be norm-bounded, and the average dwell time approach is utilized for the stability analysis and controller design. Firstly, an exponential stability criterion is established in terms of linear matrix inequalities (LMIs). Then, a state feedback controller is constructed for the underlyin…

Mathematical optimizationArticle Subjectlcsh:MathematicsGeneral MathematicsControl (management)VDP::Technology: 500::Mechanical engineering: 570General EngineeringState (functional analysis)Linear matrixlcsh:QA1-939Stability (probability)VDP::Mathematics and natural science: 400::Mathematics: 410Dwell timeExponential stabilitylcsh:TA1-2040Control theoryFull state feedbacklcsh:Engineering (General). Civil engineering (General)ActuatorMathematics
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Exploring the apparent properties and Q-markers for quality control of Cornus officinalis

2023

Cornus officinalis Siebold & Zucc. has a high nutritious value and is widely used in food fields. To distinguish the quality of cornus in different areas, this research provided a new strategy for comprehensively evaluating cornus. As a result, 12 iridoid glycosides and 7 polyphenols were identified and quantified by UHPLC-Q-TOF/MS in 13 batches of samples from five different origins. Chromaticity analysis pointed out that pelargonidin-3-O-galactoside, total iridoids, and total polyphenols performed high relation with 1365*. Antioxidant activity and inhibition of α-glucosidase effect correlated with the chemical analysis suggested that iridoid glycosides and polyphenols should represent…

Cornus officinalis Siebold &ampZucc. (Cornaceae) UHPLC-Q-TOF/MS Q-Marker Purification ChromaticitySettore BIO/03 - Botanica Ambientale E ApplicataGeneral MedicineFood ScienceAnalytical Chemistry
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Meta-analysis of genome-wide association studies from the CHARGE consortium identifies common variants associated with carotid intima media thickness…

2011

Carotid intima media thickness (cIMT) and plaque determined by ultrasonography are established measures of subclinical atherosclerosis that each predicts future cardiovascular disease events. We conducted a meta-analysis of genome-wide association data in 31,211 participants of European ancestry from nine large studies in the setting of the Cohorts for Heart and Aging Research in Genomic Epidemiology (CHARGE) Consortium. We then sought additional evidence to support our findings among 11,273 individuals using data from seven additional studies. In the combined meta-analysis, we identified three genomic regions associated with common carotid intima media thickness and two different regions a…

AgingMultifunction cardiogramGenome-wide association studyDiseaseCoronary Artery Disease030204 cardiovascular system & hematologyCarotid Intima-Media ThicknessCoronary artery diseaseCohort Studies0302 clinical medicinecardiovascular diseaseRisk FactorsAging/geneticsgeneticsMyocardial infarctionEuropean Continental Ancestry Group/geneticsriskPlaque0303 health scienceseducation.field_of_studyGenomeCoronary Artery Disease/geneticsHeartSingle NucleotidePlaque Atherosclerotic/geneticsMiddle AgedPlaque Atherosclerotic3. Good healthPhenotypeHeart/physiopathologyCardiologyHumanAdultmedicine.medical_specialtygenetic epidemiologyGenotypesubclinical atherosclerosisPopulationSingle-nucleotide polymorphismBiologyPolymorphism Single NucleotideWhite PeopleArticle03 medical and health sciencesSDG 3 - Good Health and Well-beingInternal medicinemedicinecohort studyHumanscarotid intima media thicknessGenetic Predisposition to DiseasePolymorphismeducation030304 developmental biologyAgedAtherosclerotic/geneticsGenome Humanmedicine.diseaseAtherosclerosismeta-analysisAtherosclerosis/geneticsIntima-media thicknessGenetic LociGenome-Wide Association Study
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Output Feedback Control of Discrete Impulsive Switched Systems with State Delays and Missing Measurements

2013

Published version of an article in the journal: Mathematical Problems in Engineering. Also available from the publisher at: http://dx.doi.org/10.1155/2013/283426 Open Access This paper is concerned with the problem of dynamic output feedback (DOF) control for a class of uncertain discrete impulsive switched systems with state delays and missing measurements. The missing measurements are modeled as a binary switch sequence specified by a conditional probability distribution. The problem addressed is to design an output feedback controller such that for all admissible uncertainties, the closed-loop system is exponentially stable in mean square sense. By using the average dwell time approach a…

SequenceArticle Subjectlcsh:MathematicsGeneral MathematicsGeneral EngineeringBinary numberConditional probability distributionlcsh:QA1-939Expression (mathematics)Dwell timeExponential stabilitylcsh:TA1-2040Control theoryState (computer science)lcsh:Engineering (General). Civil engineering (General)MathematicsMathematical Problems in Engineering
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Asynchronously switched control of discrete impulsive switched systems with time delays

2013

This paper is concerned with the stabilization problem for a class of uncertain discrete impulsive switched delay systems under asynchronous switching. The so-called asynchronous switching means that the switches between the candidate controllers and system modes are asynchronous. By using the average dwell time (ADT) approach, sufficient conditions for the existence of an asynchronously switched controller is derived such that the resulting closed-loop system is exponentially stable. The desired controller gains and the admissible switching signals are obtained in terms of a set of matrix inequalities. A numerical example is given to illustrate the effectiveness of the proposed method.

Time delaysInformation Systems and ManagementControl (management)Computer Science ApplicationsTheoretical Computer ScienceSet (abstract data type)Dwell timeMatrix (mathematics)Exponential stabilityArtificial IntelligenceControl and Systems EngineeringControl theoryAsynchronous communicationSoftwareMathematicsInformation Sciences
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40(th) EASD Annual Meeting of the European Association for the Study of Diabetes : Munich, Germany, 5-9 September 2004

2004

0303 health sciencesmedicine.medical_specialtybusiness.industryEASDEndocrinology Diabetes and MetabolismHuman physiologymedicine.disease03 medical and health sciences0302 clinical medicineDiabetes mellitusFamily medicineInternal MedicineMedicinebusiness030217 neurology & neurosurgery030304 developmental biology
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De novo loss-of-function KCNMA1 variants are associated with a new multiple malformation syndrome and a broad spectrum of developmental and neurologi…

2019

Abstract KCNMA1 encodes the large-conductance Ca2+- and voltage-activated K+ (BK) potassium channel α-subunit, and pathogenic gain-of-function variants in this gene have been associated with a dominant form of generalized epilepsy and paroxysmal dyskinesia. Here, we genetically and functionally characterize eight novel loss-of-function (LoF) variants of KCNMA1. Genome or exome sequencing and the participation in the international Matchmaker Exchange effort allowed for the identification of novel KCNMA1 variants. Patch clamping was used to assess functionality of mutant BK channels. The KCNMA1 variants p.(Ser351Tyr), p.(Gly356Arg), p.(Gly375Arg), p.(Asn449fs) and p.(Ile663Val) abolished the …

MaleAtaxiaGenotypeDevelopmental DisabilitiesMutation MissenseBiology03 medical and health sciences0302 clinical medicineNeurodevelopmental disorderProtein DomainsLoss of Function MutationGeneticsmedicineHumansMissense mutationAbnormalities MultipleGenetic Predisposition to DiseaseProtein Interaction Domains and MotifsAlleleLarge-Conductance Calcium-Activated Potassium Channel alpha SubunitsMolecular BiologyAllelesGenetic Association StudiesGenetics (clinical)Loss functionExome sequencing030304 developmental biologyGenetics0303 health sciencesInfant NewbornGeneral MedicineParoxysmal dyskinesiamedicine.diseaseElectrophysiological PhenomenaPedigreePhenotypeAmino Acid SubstitutionSpeech delayFemaleGeneral Articlemedicine.symptom030217 neurology & neurosurgeryHuman Molecular Genetics
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