Sharif Digital Repository

Band-structure calculation of SH-waves in 1D hypersonic nano-sized phononic crystals with deformable interfaces

Author

Jam, M.T.

Publisher

Elsevier B.V,

Pub. Year

2022

Subjects

Band gap. / Deformable interfaces. / Hypersonic phononic crystals. / Interface inertial parameters. / Negative refraction. / Phononic band-structure. / Calculations. / Crystal structure. / Deformation. / Elasticity. / Multilayers. / Phonons. / Shear waves. / Terahertz waves. / Wave propagation. / Zirconia. / Deformable interface. / Inertial parameters. / Interface inertial parameter. / Layer stacks. / Multilayer stacks. / Nano sized. / Negative refractions. / SH-waves. / Energy gap.

Scattering of plane elastic waves by a multi-coated nanofiber with deformable interfaces

Author

Shodja, H. M.

Publisher

Elsevier Ltd,

Pub. Year

2018

Subjects

Curved deformable interfaces. / Interface equations of motion. / Interface excess kinetic energy. / Interface inertial parameters. / Interface momenta. / Plane elastic waves. / Scattering cross section. / Elastic waves. / Equations of motion. / Kinetic energy. / Kinetics. / Nanofibers. / Natural frequencies. / Stiffness. / Stress concentration. / Dynamic stress concentration factor. / Elastostatic theory. / Inertial parameters. / Interface equations. / Interface stiffness. / Locally resonant sonic materials. / Low-frequency waves. / Deformation.

Interface effects on the electromagnetic radiation emanating from an embedded piezoelectric nano-fiber incident upon by SH-waves

Author

Taheri Jam, M.

Publisher

Elsevier B.V,

Pub. Year

2020

Subjects

Electromagnetic radiation. / Embedded piezoelectric nanofiber. / Fully-coupled electrodynamics. / Interface effect. / Electromagnetic wave emission. / Electromagnetic waves. / Maxwell equations. / Radiation effects. / Shear waves. / Electrically small antennas. / Fully-coupled. / Fundamental resonance frequency. / Interface characteristic. / Mathematical frameworks. / Piezoelectric nanofibers. / Scattering cross section. / Nanofibers. / Electrodynamics. / Magnetic field. / Piezoelectricity. / SH-wave.

Heat transfer analysis of a porously covered heated square cylinder, using a hybrid Navier-Stokes-lattice Boltzmann numerical method

Author

Salimi, M. R.

Publisher

Elsevier Masson SAS,

Pub. Year

2015

Subjects

Cylinders (shapes) / Finite volume method. / Laminar flow. / Navier Stokes equations. / Numerical methods. / Nusselt number. / Porosity. / Reynolds number. / Thermal conductivity. / Thermal conductivity of liquids. / Thermal conductivity of solids. / Heat transfer analysis. / High thermal conductivity. / Hybrid FVMeLBM. / Multiple-relaxation time. / Porous covering. / Thermal conductivity ratio. / Two-dimensional laminar flow. / Unsteady laminar flow. / Heat transfer.

Pore-scale simulation of fluid flow passing over a porously covered square cylinder located at the middle of a channel, using a hybrid MRT-LBM–FVM approach

Author

Salimi, M. R.

Publisher

Springer New York LLC,

Pub. Year

2015

Subjects

Hybrid LBM–FVM. / Porous media. / Unsteady flow. / Aerodynamic configurations. / Computational fluid dynamics. / Cylinders (shapes) / Drag. / Finite volume method. / Fluid dynamics. / Mechanical permeability. / Porous materials. / Reynolds number. / Aerodynamic coefficients. / Compressibility errors. / Low Reynolds number. / Multiple-Relaxation Time lattice Boltzmann. / No-slip boundary conditions. / Permeability increase. / Pore-scale simulation. / Unsteady laminar flow. / Flow of fluids. / Aerodynamics. / Boundary condition. / Channel flow. / Finite element method. / Fluid flow. / Laminar flow. / Navier-Stokes equations. / Porosity. / Porous medium. / Simulation.

Accurate calculation of the natural frequencies of reticulated and solid cylindrical composite shells

Author

Hashemian, A. H.

Pub. Year

2012

Subjects

Composite Materials. / Natural Frequencies. / Reticulated Strucutres. / Solid hollow cylindrical shell. / Cylindrical composite shells. / Cylindrical shell. / Governing equations. / Hollow cylinders. / Outer diameters. / Reticulated shells. / Solid cylinders. / Aerospace engineering. / Cylinders (shapes) / Finite element method. / Natural frequencies. / Shells (structures)

Optimization of geometric parameters of latticed structures using genetic algorithm

Author

Hashemian, A. H.

Pub. Year

2011

Subjects

Aerospace structure. / Aircraft fuselages. / Buckling loads. / Civil engineering structures. / Compressive axial load. / Cross-section area. / Cylindrical shell. / Functional structure. / Geometric design. / Geometric parameter. / Governing differential equations. / Hollow cylinders. / Lattice shells. / Lattice structures. / Load capacity. / Load-bearing capacity. / Maximum buckling. / Objective functions. / Optimum parameters. / Outer diameters. / Rocket motor. / Shell structures. / Specific weights. / Axial loads. / Buckling. / Civil engineering. / Composite materials. / Cylinders (shapes) / Differential equations. / Finite element method. / Fuselages. / Genetic algorithms. / Geometry. / Optimization. / Parameter estimation. / Rocket engines.

Vulnerability modeling of cryptographic hardware to power analysis attacks

Author

Moradi, A.

Pub. Year

2009

Subjects

DPA. / Glitches. / SPA. / Toggle-count DPA. / Vulnerability. / DPA. / Glitches. / SPA. / Toggle-count DPA. / Vulnerability.

Stochastic fine-tuning of language models using masked gradients

Author

Akbar-Tajari, M.

Publisher

ACL Anthology,

Pub. Year

2024

Subjects

Benchmarking. / Computational linguistics. / Computer circuits. / Context sensitive languages. / Gluing. / Modeling languages. / Natural language processing systems. / Stochastic models. / Computational costs.

Nonlinear free vibration of conservative oscillators with inertia and static type cubic nonlinearities using homotopy analysis method

Author

Hoseini, S. H.

Pub. Year

2008

Subjects

Approximation theory. / Convergence of numerical methods. / Parameter estimation. / Vibrations (mechanical) / Cubic nonlinearities. / Nonlinear free vibrations. / Oscillators (electronic)

A hybrid transformer model for determination of partial discharge location in transformer winding

Author

Naderi, M. S.

Pub. Year

2007

Subjects

Computer simulation. / Electric lines. / Electric windings. / Electromagnetic fields. / Optimization. / Partial discharges. / Hybrid transformer model. / PD location. / PD propagation. / Structural data. / Power transformers.

A method for studying partial discharges location and propagation within power transformer winding based on the structural data

Author

Naderi, M. S.

Publisher

Institute of Electrical Engineers of Japan,

Pub. Year

2005

Subjects

Algorithms. / Computer software. / Degradation. / Deterioration. / Electric insulation. / Electric transformers. / Failure analysis. / Mathematical models. / Winding. / Insulating systems. / Insulation failure. / Power transformers. / Software packages. / Partial discharges.

On the throughput and outage probability of multi-relay networks with imperfect power amplifiers

Author

Makki, B.

Publisher

Institute of Electrical and Electronics Engineers Inc,

Pub. Year

2015

Subjects

Cooperative and non-cooperative networks. / Dense networks. / Green Communication. / Multi-relay networks. / Outage probability. / Power amplifiers. / Throughput.

Design and implementation of a new spherical super element in structural analysis

Author

Sarvi, M. N.

Pub. Year

2012

Subjects

Natural frequency. / Spherical super element. / Biological cells. / Computational time. / Experimental methods. / Finite element packages. / Hollow sphere. / Mechanical problems. / Shape functions. / Spherical structures. / Super elements. / Ball bearings. / Deformation. / Finite element method. / Natural frequencies. / Vibration analysis. / Spheres.

Deformation, stress and natural frequency analysis of the fullerene by finite super element method

Author

Sarvi, M. N.

Pub. Year

2011

Subjects

Nano ball bearing. / Spherical super element. / Stress. / Accurate prediction. / Cancerous cells. / Concentrated load. / Experimental methods. / Frequency Analysis. / Static and dynamic response. / Super element method. / Super elements. / Support structures. / Ball bearings. / Deformation. / Design. / Dynamic response. / Loading. / Mechanical properties. / Molecular dynamics. / Natural frequencies. / Spheres. / Stress analysis. / Stresses. / Fullerenes.

Vibrational analysis of wavy carbon nanotube-reinforced composites

Author

Motahar, M. S.

Pub. Year

2011

Subjects

Beam elements. / Different boundary condition. / Effective moduli. / Elastodynamic behavior. / Finite-element approach. / Nanotube waviness. / Three-dimensional structure. / Vibrational analysis. / Design. / Nanotubes. / Natural frequencies. / Stress analysis. / Carbon nanotubes.