Search results for " Mathematics"

showing 10 items of 10797 documents

A Data-Based Approach for Modeling and Analysis of Vehicle Collision by LPV-ARMAX Models

2013

Published version of an article in the journal: Journal of Applied Mathematics. Also available from the publisher at: http://dx.doi.org/10.1155/2013/452391 Open Access Vehicle crash test is considered to be the most direct and common approach to assess the vehicle crashworthiness. However, it suffers from the drawbacks of high experiment cost and huge time consumption. Therefore, the establishment of a mathematical model of vehicle crash which can simplify the analysis process is significantly attractive. In this paper, we present the application of LPV-ARMAX model to simulate the car-to-pole collision with different initial impact velocities. The parameters of the LPV-ARMAX are assumed to …

Article SubjectComputer scienceApplied Mathematicslcsh:MathematicsProcess (computing)Collisionlcsh:QA1-939Set (abstract data type)Identification (information)High fidelityControl theoryCrashworthinessVDP::Matematikk og Naturvitenskap: 400::Matematikk: 410::Anvendt matematikk: 413Test dataMotor vehicle crashJournal of Applied Mathematics
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Evolutionary Algorithms and Metaheuristics : Applications in Engineering Design and Optimization

2018

Article SubjectComputer scienceoptimisationGeneral MathematicsEvolutionary algorithmevoluutiolaskenta02 engineering and technologytekoälyalgorithms01 natural sciences010305 fluids & plasmas0203 mechanical engineeringoptimointi0103 physical sciencesalgoritmitMetaheuristicta113business.industrylcsh:Mathematicsta111General Engineeringlcsh:QA1-939artificial intelligence020303 mechanical engineering & transportslcsh:TA1-2040evolutionary computationArtificial intelligenceEngineering design processbusinesslcsh:Engineering (General). Civil engineering (General)
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Qualitative Analysis of Differential, Difference Equations, and Dynamic Equations on Time Scales

2015

and Applied Analysis 3 thank Guest Editors Josef Dibĺik, Alexander Domoshnitsky, Yuriy V. Rogovchenko, Felix Sadyrbaev, and Qi-Ru Wang for their unfailing support with editorial work that ensured timely preparation of this special edition. Tongxing Li Josef Dibĺik Alexander Domoshnitsky Yuriy V. Rogovchenko Felix Sadyrbaev Qi-Ru Wang

Article SubjectDifferential equationlcsh:MathematicsApplied MathematicsFinite difference methodlcsh:QA1-939Stochastic partial differential equationNonlinear systemMultigrid methodKolmogorov equations (Markov jump process)Simultaneous equationsApplied mathematicsAnalysisNumerical partial differential equationsMathematicsAbstract and Applied Analysis
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Stability of impulsive differential systems

2013

The asymptotic phase property and reduction principle for stability of a trivial solution is generalized to the case of the noninvertible impulsive differential equations in Banach spaces whose linear parts split into two parts and satisfy the condition of separation.

Article SubjectDifferential equationlcsh:MathematicsApplied MathematicsMathematical analysisPhase (waves)Banach spacelcsh:QA1-939Differential systemsStability (probability)Trivial solution:MATHEMATICS::Applied mathematics [Research Subject Categories]Reduction (mathematics)AnalysisMathematics
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Dirichlet Boundary Value Problem for the Second Order Asymptotically Linear System

2016

We consider the second order system x′′=f(x) with the Dirichlet boundary conditions x(0)=0=x(1), where the vector field f∈C1(Rn,Rn) is asymptotically linear and f(0)=0. We provide the existence and multiplicity results using the vector field rotation theory.

Article SubjectDirichlet conditionslcsh:MathematicsApplied Mathematics010102 general mathematicsMathematical analysisMixed boundary conditionDirichlet's energylcsh:QA1-93901 natural sciences010101 applied mathematicssymbols.namesakeDirichlet eigenvalueGeneralized Dirichlet distributionDirichlet's principleDirichlet boundary conditionsymbolsBoundary value problem0101 mathematicsAnalysisMathematicsInternational Journal of Differential Equations
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Delay-Probability-Distribution-Dependent FIR Filtering Design with Envelope Constraints

2013

Published version of an article in the journal: Mathematical Problems in Engineering. Also available from the publisher at: http://dx.doi.org/10.1155/2013/930927 Open Access This paper studies the problem of H∞ finite-impulse response (FIR) filtering design of time-delay system. The time-delay considered here is time-varying meanwhile with a certain stochastic characteristic, and the probability of delay distribution is assumed to be known. Furthermore, the requirement of pulse-shape is also considered in filter design. Employing the information about the size and probability distribution of delay, a delay-probability-distribution-dependent criterion is proposed for the filtering error syst…

Article SubjectDistribution (number theory)lcsh:MathematicsGeneral MathematicsGeneral EngineeringLinear matrixlcsh:QA1-939Set (abstract data type)Filter designlcsh:TA1-2040Control theoryProbability distributionVDP::Matematikk og Naturvitenskap: 400::Matematikk: 410::Analyse: 411lcsh:Engineering (General). Civil engineering (General)Envelope (mathematics)MathematicsMathematical Problems in Engineering
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Mathematical Modeling, Analysis, and Advanced Control of Complex Dynamical Systems

2014

1 School of Electrical and Electronic Engineering, The University of Adelaide, Adelaide, SA 5005, Australia 2 Department of Engineering, Faculty of Technology and Science, University of Agder, 4898 Grimstad, Norway 3 College of Automation, Chongqing University, Chongqing 400044, China 4 School of Control Science and Engineering, Shandong University, Jinan 250061, China 5 College of Automation, Harbin Engineering University, Harbin 150001, China

Article SubjectDynamical systems theorybusiness.industryComputer sciencelcsh:MathematicsGeneral MathematicsVDP::Technology: 500::Mechanical engineering: 570Control (management)General Engineeringlcsh:QA1-939AutomationEngineering managementEngineering (all)lcsh:TA1-2040Mathematics (all)Applied mathematicslcsh:Engineering (General). Civil engineering (General)ChinabusinessMathematics (all); Engineering (all)Mathematical Problems in Engineering
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Switched dynamics with its applications

2014

Published version of an article in the journal: Abstract and Applied Analysis. Also available from the publisher at: http://dx.doi.org/10.1155/2014/528532

Article SubjectDynamics (music)lcsh:MathematicsApplied MathematicsVDP::Technology: 500::Mechanical engineering: 570Control engineeringAnalysis; Applied Mathematicslcsh:QA1-939AnalysisMathematics
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Modeling Chickenpox Dynamics with a Discrete Time Bayesian Stochastic Compartmental Model

2018

[EN] We present a Bayesian stochastic susceptible-exposed-infectious-recovered model in discrete time to understand chickenpox transmission in the Valencian Community, Spain. During the last decades, different strategies have been introduced in the routine immunization program in order to reduce the impact of this disease, which remains a public health's great concern. Under this scenario, a model capable of explaining closely the dynamics of chickenpox under the different vaccination strategies is of utter importance to assess their effectiveness. The proposed model takes into account both heterogeneous mixing of individuals in the population and the inherent stochasticity in the transmiss…

Article SubjectGeneral Computer ScienceComputer scienceComputationBayesian probabilityPosterior probabilityPopulation01 natural scienceslcsh:QA75.5-76.95010305 fluids & plasmas010104 statistics & probabilityMixing (mathematics)0103 physical sciencesmedicineEconometrics0101 mathematicseducationeducation.field_of_studyMultidisciplinaryChickenpoxPrediction intervalmedicine.diseaseVaccinationDiscrete time and continuous timePosterior predictive distributionlcsh:Electronic computers. Computer scienceMATEMATICA APLICADA
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A Machine Learning-Based Intelligence Approach for Multiple-Input/Multiple-Output Routing in Wireless Sensor Networks

2022

Computational intelligence methods play an important role for supporting smart networks operations, optimization, and management. In wireless sensor networks (WSNs), increasing the number of nodes has a need for transferring large volume of data to remote nodes without any loss. These large amounts of data transmission might lead to exceeding the capacity of WSNs, which results in congestion, latency, and packet loss. Congestion in WSNs not only results in information loss but also burns a significant amount of energy. To tackle this issue, a practical computational intelligence approach for optimizing data transmission while decreasing latency is necessary. In this article, a Softmax-Regre…

Article SubjectGeneral MathematicsComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSQA1-939General EngineeringTA1-2040Engineering (General). Civil engineering (General)VDP::Teknologi: 500::Informasjons- og kommunikasjonsteknologi: 550MathematicsMathematical Problems in Engineering
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