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Hybrid robust fault detection and isolation of satellite reaction wheel actuators

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Journal of Control and Decision 2024年第1期11卷 117-131页

作者： H.Abbasi nozari S.J.Sadati Rostami Paolo Castaldi Silvio Simani Faculty of Electrical and Computer Engineering Babol Noshirvani University of TechnologyBabolIran Department of Electrical Electronic and Information EngineeringUniversity of BolognaCesenaItaly Department of Engineering University of FerraraFerraraItaly

In this paper,a combined robust fault detection and isolation scheme is studied for satellite system subject to actuator faults,external disturbances,and parametric *** proposed methodology incorporates a residual generation module,including a bank of filters,into an intelligent residual evaluation ***,residual filters are designed based on an improved nonlinear differential algebraic approach so that they are not affected by external *** residual evaluation module is developed based on the suggested series and parallel ***,a new ensemble classification scheme defined as blended learning integrates heterogeneous classifiers to enhance the performance.A wide range of simulations is carried out in a high-fidelity satellite simulator subject to the constant and time-varying actuator faults in the presence of disturbances,manoeuvres,uncertainties,and *** obtained results demonstrate the effectiveness of the proposed robust fault detection and isolation method compared to the traditional nonlinear differential algebraic approach.

关键词： Robust fault detection and isolation reaction wheels blended learning series and parallel fault detection and isolation forms satellite attitude control system

The Energy Distribution of a Noncommutative Reissner–Nordström Black Hole

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Chinese Physics Letters 2013年第9期30卷 25-28页

作者： kourosh nozari A.Yazdani Center for Excellence in Astronomy and Astrophysics(CEAAI-RIAAM)-Maragha P.O.Box55134-441MaraghaIran Department of Physics Faculty of Basic SciencesUniversity of MazandaranP.O.Box 47416-95447BabolsarIran

We study the energy distribution of a noncommutative Reissner–Nordström black *** consider both Ein-stein and Møller prescriptions,and compare our results with the corresponding results obtained recently for a Schwar... 详细信息

关键词： Reissner commutative black

Baryogenesis in f(R, T) Gravity

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Communications in Theoretical Physics 2018年第10期70卷 451-458页

作者： kourosh nozari Fateme Rajabi Department of Physics Faculty of Basic Sciences University of Mazandaran P.O. Box 47416-95447 Babolsar Iran Research Institute for Astronomy and Astrophysics of Maragha (RIAAM) P.O. Box 55134-441 Maragha Iran

We study gravitational baryogenesis in the context of f(R, T) gravity where the gravitational Lagrangian is given by a generic function of the Ricci scalar R and the trace of the stress-energy tensor T. We explore how this type of modified gravity is capable to shed light on the issue of baryon asymmetry in a successful manner. We consider various forms of baryogenesis interaction and discuss the effect of these interaction terms on the baryon to entropy ratio in this setup. We show that baryon asymmetry during the radiation era of the expanding universe can be non-zero in this framework. Then, we calculate the baryon to entropy ratio for some specific f(R, T) models and by using the observational data, we give some constraints on the parameter spaces of these models.

关键词： baryogenesis modified gravity observational data

Phantom-Like Effects on Warped DGP Brane

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Communications in Theoretical Physics 2010年第10期54卷 773-780页

作者： kourosh nozari Tahereh Azizi Department of Physics Faculty of Basic SciencesUniversity of Mazandaran

We study phantom-like effect on the DGP brane embedded in a five-dimensional AdS bulk. We show that this effect can be realized without phantom matter on this warped DGP brahe. We investigate the role played by the bulk cosmological constant on the phantom-like effect on the brane and we show that it tends to reduce this effect. Also, warped compactification of the bulk manifold increases the values of the effective and total equation of state parameters of the model relative to the case with Minkowski bulk. We extend our study to the ease that induced curvature on the brahe is modified in the spirit of the f（R）-gravity.

关键词： Braneworld cosmology dark energy models warped DGP scenario modified gravity

Neutrosophic Mathematical Programming for Optimization of Multi-Objective Sustainable Biomass Supply Chain Network Design

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Computer Modeling in Engineering & Sciences 2021年第11期129卷 927-951页

作者： Mohammad Fallah Hamed nozari Department of Industrial Engineering Islamic Azad UniversityCentral Tehran BranchTehranIran

In this paper,a multi-objective sustainable biomass supply chain network under uncertainty is designed by neutrosophic programming *** this method,for each objective function of the problem,three functions of truth membership,non-determination and falsehood are *** programming method in this paper simultaneously seeks to optimize the total costs of the supply chain network,the amount of greenhouse gas emissions,the number of potential people hired and the time of product transfer along the supply chain *** achieve the stated objective functions,strategic decisions such as locating potential facilities and tactical decisions such as optimal product flow allocation and vehicle routing must be *** results of the implementation of neutrosophic programming method show the high efficiency of this method in achieving the optimal values of each objective ***,by examining the rate of uncertainty,it was observed that with increasing this rate,the total costs of supply chain network design,greenhouse gas emissions and product transfer times have increased,and in contrast,the potential employment rate of individuals has decreased.

关键词： Neutrosophic mathematical programming sustainable supply chain biomass supply chain neutrosophic set uncertainty

A Consistency Check for the Free Scalar Field Theory Realization of the Doubly Spacial Relativity

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Communications in Theoretical Physics 2019年第6期71卷 677-684页

作者： Mohsen khodadi kourosh nozari Young Researchers and Elite Club Firoozkooh BranchIslamic Azad UniversityFiroozkoohIran Department of Physics Faculty of Basic SciencesUniversity of MazandaranP.O.Box47416-95447BabolsarIran Research Institute for Astronomy and Astrophysics of Maragha(RIAAM) P.O.Box55134-441MaraghaIran

We study a free scalar field theory in the framework of the Magueijo-Smolin model of the 'Doubly Special Relativity'(DSR) which is a non-linear realization of the action of the Lorentz group on momentum space admitting an invariant energy cutoff. We show that unlike the standard quantum field theory, the klein-Gordon equation obtained via Euler-Lagrange field equation and Heisenberg picture equation of motion of the field are not equivalent in this framework,at least up to the first order of the Planck length scale.

关键词： quantum gravity phenomenology doubly special relativity quantum field theory klein-Gordon equation

Cosmological perturbations in a noncommutative braneworld inflation

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Research in Astronomy and Astrophysics 2012年第6期12卷 625-635页

作者： kourosh nozari Siamak Akhshabi Department of Physics Faculty of Basic SciencesUniversity of MazandaranP.O.Box 47416-95447BabolsarIran

We use the smeared, coherent state picture of noncommutativity to study evolution of perturbations in a noncommutative braneworld scenario. Within the stan- dard procedure of studying braneworld cosmological perturbations, we study the evo- lution of the Bardeen metric potential and curvature perturbations in this model. We show that in this setup, the early stage of the universe＇s evolution has a transient phan- tom evolution with imaginary effective sound speed.

关键词： early universe cosmology -- cosmology theory

Noncommutative Inspired Reissner-Nordstrm Black Holes in Large Extra Dimensions

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Communications in Theoretical Physics 2010年第3期53卷 503-513页

作者： kourosh nozari S.Hamid Mehdipour Department of Physics Faculty of Basic SciencesUniversity of Mazandaran Babolsar IRAN Research Institute for Astronomy and Astrophysics of Maragha Islamic Azad University Lahijan Branch

Recently, a new noncommutative geometry inspired solution of the coupled Einstein Maxwell field equations including black holes in 4-dimension is found. In this paper, we generalize some aspects of this model to the Reissner Nordstrom （RN） like geometries with large extra dimensions. We discuss Hawking radiation process based on noncommutative inspired solutions. In this framework, existence of black hole remnant and possibility of its detection in LHC are investigated.

关键词： quantum gravity black hole thermodynamics noncommutative spacetime large extra dimensions

Investigation of factors affecting rural drinking water consumption using intelligent hybrid models

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Water Science and Engineering 2023年第2期16卷 175-183页

作者： Alireza Mehrabani Bashar Hamed nozari Safar Marofi Mohamad Mohamadi Ahad Ahadiiman Department of Water Science and Engineering Faculty of AgricultureBu-Ali Sina UniversityHamedan 65178-38695Iran University of kurdistan Sanandaj 66177-15175Iran Sustainable Development Office of Hamedan Water and Wastewater Company Hamedan 65159-14478Iran

Identifying the factors affecting drinking water consumption is essential to the rational management of water resources and effective environment protection. In this study, the effects of the factors on rural drinking water demand were studied using the adaptive neuro-fuzzy inference system (ANFIS) and hybrid models, such as the ANFIS-genetic algorithm (GA), ANFIS-particle swarm optimization (PSO), and support vector machine (SVM)-simulated annealing (SA). The rural areas of Hamadan Province in Iran were selected for the case study. Five drinking water consumption factors were selected for the assessment according to the literature, data availability, and the characteristics of the study area (such as precipitation, relative humidity, temperature, the number of subscribers, and water price). The results showed that the standard errors of ANFIS, ANFIS-GA, ANFIS-PSO, and SVM-SA were 0.669, 0.619, 0.705, and 0.578, respectively. Therefore, the hybrid model SVM-SA outperformed other models. The sensitivity analysis showed that of the parameters affecting drinking water consumption, the number of subscribers significantly affected the water consumption rate, while the average temperature was the least significant factor. Water price was a factor that could be easily controlled, but it was always one of the least effective parameters due to the low water fee.

关键词： ANFIS Water distribution network Simulated annealing algorithm Support vector machine Adaptive neuro-fuzzy inference system