Sharif Digital Repository

Comparison between backstepping and input-output linearization techniques for pH process control

Author

Nejati, A.

Pub. Year

2012

Subjects

Globally linearizing controller. / Adaptive backstepping. / Backstepping technique. / Experimental studies. / Full-order models. / Input output linearization. / Load rejections. / PH control. / Ph process control. / Reduced order models. / Set-point tracking. / State estimator designs. / State measurements. / Work performance. / Backstepping. / Computer simulation. / Controllers.

A two-dimensional approach to evaluate the scientific production of countries (case study: The basic sciences)

Author

Nejati, A.

Pub. Year

2010

Subjects

Basic science. / Quality. / Quantity. / Scientific production.

Adaptive nonlinear control of pH neutralization processes using fuzzy approximators

Author

Salehi, S.

Pub. Year

2009

Subjects

Adaptive control. / Adaptive control schemes. / Adaptive nonlinear control. / Approximators. / Asymptotical stability. / Composition measurements. / Experimental studies. / Fuzzy logic system. / Fuzzy logic systems. / Load rejections. / Nonlinear control. / pH control. / PH neutralization process. / PI Controller. / Set-point tracking. / Uniformly ultimately bounded. / Controllers. / Fuzzy control. / Fuzzy logic. / Fuzzy sets. / Nonlinear control systems. / Predictive control systems. / System stability. / Adaptive control systems.

Adaptive input-output linearization control of pH processes

Author

Nejati, A.

Pub. Year

2008

Subjects

pH control. / Exact linearization. / Nonlinear state estimator. / Least-squares identification.

Effect of microstructural constituents on the thermal fatigue life of A319 aluminum alloy

Author

Firouzdor, V.

Pub. Year

2007

Subjects

Thermal fatigue resistance. / Thermal-shock fatigue. / Thermo-mechanical fatigue. / Aluminum alloys. / Aluminum alloys. / Brittleness. / Crack propagation. / Intermetallics. / Metallographic microstructure. / Porosity. / Thermal fatigue. / Volume fraction. / Thermal shock.

An investigation on strain inhomogeneity in hot strip rolling process

Author

Serajzadeh, S.

Pub. Year

2002

Subjects

Heat transfer. / Hot rolling. / Phase transformation. / The finite element method.

Fostering the Adoption and Use of Super App Technology

Author

Salehi, S.

Pub. Year

2024

Subjects

Social construction of technology (SCoT) / Super applications (super app) / Technology acceptance model (TAM) / Technology adoption. / Economic and social effects. / Social networking (online) / Social sciences computing. / Behavioral science. / Disruptive technology. / Incentive. / Mobile applications. / Social groups. / Behavioral research.

Drag reduction by a multi-point optimised hybrid flow control method for two supercritical airfoils

Author

Nejati, A.

Publisher

Taylor and Francis Ltd

Pub. Year

2016

Subjects

Multi-point adjoint optimisation. / Aerodynamics. / Airfoils. / Boundary layer flow. / Boundary layers. / Drag. / Drag reduction. / Flow control. / Flow separation. / Transonic aerodynamics. / Transonic flow. / Adjoints. / Aero-dynamic performance. / Aerodynamic efficiency. / Boundary layer thickness. / Flow control methods. / Shock-wave/boundary layer interactions. / Suction and blowing. / Supercritical airfoils. / Shock waves.

Performance improvement of a supercritical airfoil by a multi-point optimized shock control channel

Author

Nejati, A.

Pub. Year

2017

Subjects

Multi-point adjoint optimization. / Shock control channel. / Shock wave. / Supercritical airfoil. / Aerodynamics. / Airfoils. / Angle of attack. / Boundary layers. / Drag. / Drag reduction. / Flow control. / Optimization. / Shock absorbers. / Transonic flow. / Adjoint optimizations. / Aerodynamic efficiency. / Flow control methods. / Off design condition. / Optimization algorithms. / Shock control. / Supercritical airfoils. / SWBLI. / Shock waves.

Application of the adjoint optimisation of shock control bump for ONERA-M6 wing

Author

Nejati, A.

Pub. Year

2017

Subjects

Adjoint optimisation method. / Shock control bump. / Three-dimensional bump. / Transonic wing. / Aerodynamic configurations. / Aerodynamic drag. / Aerodynamics. / Airfoils. / Boundary layer flow. / Boundary layers. / Drag. / Drag reduction. / Numerical methods. / Shock absorbers. / Shock waves. / Transonic aerodynamics. / Aero-dynamic performance. / Boundary layer velocity. / Numerical investigations. / Optimisation method. / Shock control. / Shock-wave/boundary layer interactions. / Three-dimensional flow structure. / Transonic wings. / Shape optimization.

Performance improvement of a supercritical airfoil by a multi-point optimized shock control channel

Author

Nejati, A.

Publisher

Springer Netherlands,

Pub. Year

2018

Subjects

Multi-point adjoint optimization. / Shock control channel. / Shock wave. / Supercritical airfoil. / Aerodynamics. / Airfoils. / Angle of attack. / Boundary layers. / Drag. / Drag reduction. / Flow control. / Optimization. / Shock absorbers. / Transonic flow. / Adjoint optimizations. / Aerodynamic efficiency. / Flow control methods. / Off design condition. / Optimization algorithms. / Shock control. / Supercritical airfoils. / SWBLI. / Shock waves.

Rotation induced by uniform and non-uniform magnetic fields in a conducting fluid carrying an electric current

Author

Shirsavar, R.

Publisher

Royal Society of Chemistry,

Pub. Year

2016

Subjects

Angular velocity. / Electric currents. / Excitons. / Magnetic fields. / Rotation. / Velocity measurement. / Conducting fluid. / External fields. / Non-uniform. / Nonuniform magnetic fields. / Particle image velocimetries. / Power-law dependences. / Uniform currents. / Uniform magnetic fields. / Magnetism.

Energy management of an intelligent parking lot equipped with hydrogen storage systems and renewable energy sources using the stochastic p-robust optimization approach

Author

Habib, S.

Publisher

Elsevier Ltd,

Pub. Year

2023

Subjects

Electric vehicles (EVs) / Hydrogen storage system (HSS) / Intelligent parking lot. / Risk management. / Stochastic optimization method (SOM) / Stochastic p-robust optimization approach.

Multi-job lot streaming to minimize the weighted completion time in a hybrid flow shop scheduling problem with work shift constraint

Author

Nejati, M.

Pub. Year

2014

Subjects

Genetic algorithm. / Mixed-integer non-linear programming (MINLP) / Simulated annealing. / Business machines. / Genetic algorithms. / Nonlinear programming. / Problem solving. / Scheduling. / Stream flow. / Hybrid flow shop. / Hybrid flow shop problem. / Hybrid flow shop scheduling. / Identical parallel machines. / Lot streaming. / Mixed-integer nonlinear programming. / Sequence-dependent setup time. / Weighted completion time.

Multivariable control strategy for autonomous operation of a converter-based distributed generation system

Author

Nejati, A.

Pub. Year

2011

Subjects

Autonomous operations. / Balanced loads. / Constant frequency. / Constant magnitude. / Control strategies. / DG system. / DG unit. / Distributed generation system. / Distributed generation units. / Islanded mode. / Linearized models. / Load resistances. / Load voltages. / LTI systems. / Multi variables. / Multivariable control. / Non-linear model. / Nonlinear simulations. / Nyquist. / Operating points. / Reference signals. / Robust tracking. / Simulation result. / Sinusoidal voltage. / Distributed power generation. / Linearization. / Nonlinear equations. / Power transmission. / Controllers.

Induced soap-film flow by non-uniform alternating electric field

Author

Shirsavar, R.

Publisher

Elsevier,

Pub. Year

2015

Subjects

Liquid film. / Electric fields. / Electrohydrodynamics. / Electromagnetic fields. / Flow velocity. / Ac electrokinetics. / Ac voltage. / Alternating electric field. / Metal rods. / Non-uniform. / Signal frequencies. / Soap films. / Tangential electric field. / Flow of fluids.