Sharif Digital Repository

Experimental investigation and crystal plasticity-based prediction of AA1050 sheet formability

Author

Hajian, M.

Publisher

SAGE Publications Ltd,

Pub. Year

2017

Subjects

AA1050 sheet. / Formability prediction. / Forming limit diagram. / Hemi-spherical punch test. / X-ray diffraction. / ABAQUS. / Crystal orientation. / Crystal structure. / Finite element method. / Forecasting. / Plasticity. / Subroutines. / Tensile testing. / X ray diffraction. / Body-centered cubic crystals. / Experimental investigations. / Face centered cubic crystal structure. / Forming limit diagrams. / Punch tests. / Texture measurement. / X-ray diffraction techniques. / Plasticity testing.

Dewetting of evaporating thin films over nanometer-scale topographies

Author

Akbarzadeh, A. M.

Pub. Year

2014

Subjects

Contact angle. / Film thickness. / Thin films. / De-wetting. / Depinning. / Dewetting process. / Lubrication models. / Nano-meter-scale. / Solid substrates. / Thin film layers. / Topography.

A molecular-dynamics study of thermal and physical properties of platinum nanoclusters

Author

Akbarzadeh, H.

Pub. Year

2009

Subjects

Molecular-dynamics. / Platinum nanoclusters. / Thermal and physical properties. / Bulk limits. / Different sizes. / Experimental values. / Force fields. / Heat capacities. / Internal energies. / Liquid state. / Melting temperatures. / Melting transitions. / Metallic nanoclusters. / Molecular dynamic simulations. / Molecular-dynamics simulations. / Physical characteristics. / Radial distribution functions. / Size dependences. / Approximation theory. / Atoms. / Distribution functions. / Dynamics. / Fluidized beds. / Molecular dynamics. / Nanoclusters. / Particle size. / Platinum. / Steelmaking. / Thermochemistry. / Melting point.

Experimental and analytical studies on the prediction of forming limit diagrams

Author

Ahmadi, S.

Pub. Year

2009

Subjects

ABAQUS. / Finite element method. / FLD. / Forming limit diagram. / Forming limits. / Hill's quadratic yield function. / ABAQUS. / Automobile bodies. / Automobile parts and equipment. / Dies. / Discriminant analysis. / Electric power transmission. / Formability. / Forming. / Functions. / Graphic methods. / Mechanical properties. / Metal refineries. / Natural gas transportation. / Petroleum refineries. / Probability density function. / Project management. / Die geometries. / Failure criterion. / Forming limits. / Gas transmission systems. / Limit diagrams. / Main factors. / Metal-forming processes. / Oil refineries. / Plastic straining. / Research projects. / ULC steels. / Work-hardening. / Metal forming.

An experimental and theoretical study on the prediction of forming limit diagrams using new BBC yield criteria and M-K analysis

Author

Ahmadi, S.

Pub. Year

2009

Subjects

FLD. / Formability. / Forming limit diagrams. / Hardening law. / M-K analysis. / Yield function. / Discriminant analysis. / Forming. / Functions. / Graphic methods. / Hardening. / Probability density function. / FLD. / Formability. / Hardening law. / M-K analysis. / Yield function. / Metal forming.

An analog optimal waveform design for UWB communications

Author

Ghanaatian Jahromi, A.

Pub. Year

2010

Subjects

UWB pulse design optimization. / (PSD) Ultra-wide-band (UWB) communication. / Analog signals. / Analytical approach. / FCC mask. / Federal Communications Commission. / Inverse Fourier transforms. / Mathematical analysis. / Power spectral. / Signal power. / Spectral masks. / Spectral utilization. / Ultra-wideband radio. / UWB communication. / UWB pulse design. / Wave forms. / Waveform designs. / Communication. / Design. / Fourier transforms. / Power spectral density. / Wireless telecommunication systems. / Optimization.

Nanofluidic transport inside carbon nanotubes

Author

Moghimi Kheirabadi, A.

Pub. Year

2014

Subjects

Carbon nanotube. / Molecular dynamics. / Nanofluidic. / Ion concentrations. / Mean flow velocities. / Molecular mechanism. / Nanoenvironments. / Non equilibrium molecular dynamic (NEMD) / Simultaneous effects. / Thermal movements. / Viscosity increase. / Carbon nanotubes. / Concentration (process) / Electric fields. / Electrolytes. / Shearing. / Viscosity. / Nanofluidics.

Hot filament CVD of Fe-Cr catalyst for thermal CVD carbon nanotube growth from liquid petroleum gas

Author

Akbarzadeh Pasha, M.

Pub. Year

2009

Subjects

HFCVD. / TCVD. / Annealed samples. / Annealing process. / Carbon nanotube growth. / Carbon source. / Catalyst particles. / Cr atoms. / Filament temperature. / Hot filament CVD. / Hot-filament chemical vapor deposition. / Liquid-petroleum gas. / Metal catalyst. / SEM. / Si substrates. / Surface concentration. / Surface density. / TEM. / Thermal CVD. / Auger electron spectroscopy. / Catalysis. / Catalysts. / Chemical vapor deposition. / Chromium. / Deposition. / Filaments (lamp) / Liquids. / Raman spectroscopy. / Scanning electron microscopy. / Semiconducting silicon compounds. / Thermal effects. / Transmission electron microscopy. / X ray photoelectron spectroscopy. / Carbon nanotubes.

Surface free energy of platinum nanoparticles at zero pressure: A molecular dynamic study

Author

Akbarzadeh, H.

Pub. Year

2010

Subjects

C. Nanoparticles. / E. Molecular-dynamics. / A. Platinum. / D. Surface energy. / E. Molecular-dynamics. / Metallic nanoparticles. / Molecular dynamics simulations. / Platinum nanoparticles. / Surface energies. / Surface free energy. / Thermodynamic integration methods. / Zero pressure. / Free energy. / Gibbs free energy. / Interfacial energy. / Molecular dynamics. / Platinum. / Surface chemistry. / Surface tension. / Nanoparticles.

γ' Precipitate dissolution during heat treatment of nimonic 115 superalloy

Author

Shahriari, D.

Pub. Year

2009

Subjects

γ heat treatment. / γ morphology. / Scanning electron microscopy (sem) / Volume fraction. / Dilatometry. / Dissolution temperature. / DTA. / Gas turbine blade. / Nickel base superalloy. / Nimonic 115. / Serration. / Structural characterization. / Thermal analysis. / Carbides. / Cooling. / Gas turbine locomotives. / Gas turbines. / Grain boundaries. / Grain size and shape. / Heat treatment. / Metal analysis. / Microstructure. / Morphology. / Nickel alloys. / Precipitates. / Precipitation (chemical) / Scanning. / Superalloys. / Thermal effects. / Thermoanalysis. / Titration. / Turbomachine blades. / Dissolution.

Modeling of high temperature rheological behavior of AZ61 Mg-alloy using inverse method and ANN

Author

Talebi Anaraki, M.

Pub. Year

2008

Subjects

Constitutive equations global optimization technique. / Inverse method. / Compaction. / Constitutive equations. / Dynamic recrystallization. / Genetic algorithms. / Hot working. / Metallographic microstructure. / Neural networks. / Optimization. / Rheology. / Strain rate. / Stress-strain curves. / Thermal effects. / Magnesium alloys.

Using molecular dynamic simulation data of calcite in a wide pressure range to calculate some of its thermodynamic properties via some universal equations of state

Author

Akbarzadeh, H.

Pub. Year

2008

Subjects

Carbonate minerals. / Computer simulation. / Dynamics. / Equations of state. / Isotherms. / Molecular dynamics. / Quantum chemistry. / Thermal expansion. / Thermal spraying. / Critical exponents. / Intermolecular potential. / Isothermal bulk modulus. / Lennard joneses. / Linear isotherm regularity. / Md datums. / Molecular dynamic simulation. / Pressure ranges. / Spinodal. / Temperature dependencies. / Temperature ranges. / Universal equation of state. / Universal equations. / Zero pressures. / Calcite.

Effect of crystallinity and morphology of TiO2 nano-structures on TiO2:P3HT hybrid photovoltaic solar cells

Author

Boroomandnia, A.

Publisher

Allerton Press Incorporation,

Pub. Year

2015

Subjects

Conversion efficiency. / Efficiency. / Nanofibers. / Nanostructures. / Open circuit voltage. / Photovoltaic effects. / Solar power generation. / Interface modification. / Organic-inorganic hybrid. / Overall conversion efficiency. / Photovoltaic performance. / Photovoltaic solar cells. / Power conversion efficiencies. / Short-circuit photocurrent. / Solar cell performance. / Solar cells.

The evolution of catalyst layer morphology and sub-surface growth of CNTs over the hot filament grown Fe - Cr thin films

Author

Akbarzadeh Pasha, M.

Pub. Year

2010

Subjects

Catalytic layer. / Catalytic layers. / Growth process. / HFCVD. / Morphology evolution. / TCVD. / Biology. / Carbon films. / Carbon nanotubes. / Catalyst activity. / Catalytic cracking. / Chemical vapor deposition. / Chromium. / Filaments (lamp) / Film growth. / Morphology. / Raman spectroscopy. / Scanning electron microscopy. / Thin films. / Transmission electron microscopy. / X ray photoelectron spectroscopy. / Surface morphology.

Study on the post-fire mechanical properties of lightweight 3D printed concrete containing expanded perlite as partial replacement of natural sand

Author

Azimi, Z.

Publisher

ICE Publishing,

Pub. Year

2023

Subjects

3D Concrete printing. / Bond strength. / Concrete technology & manufacture. / Fibre-reinforced concrete. / Lightweight concrete.

Accurate numerical model for surface scattering, grain boundary scattering, and anomalous skin effect of copper wires

Author

Abbaspour, E.

Pub. Year

2013

Subjects

Analytical formulas. / Anomalous skin effect. / Cu thin film. / Grain boundary scattering. / Recursive methods. / Scattering mechanisms. / Size effects. / Electric fields. / Grain boundaries. / Monte Carlo methods. / Nanoelectronics. / Numerical methods. / Surface scattering. / Thin films. / Electromagnetic wave scattering.

Density and temperature dependencies of liquid surface tension

Author

Alizadeh Osgouei, H.

Pub. Year

2011

Subjects

Effective pair potential. / Equation of State (EOS) / Linear Isotherm Regularity (LIR) / Surface tension.

Kinetics formation of bimetallic nanoalloys at different simulation times

Author

Akbarzadeh, H.

Publisher

Elsevier B.V,

Pub. Year

2017

Subjects

Condensation. / Excess energy. / Nanoalloy. / Stability. / Convergence of numerical methods. / Nanoclusters. / Amorphous structures. / Bond ordering. / Gas phase composition. / MD simulation. / Nano-alloys. / Simulation time. / Nickel.

Optimization of horizontal axis wind turbine performance with the dimpled blades by using CNN and MLP models

Author

Abbaskhah, A.

Publisher

Elsevier Ltd,

Pub. Year

2023

Subjects

Convolutional neural network. / Dimple. / Maxnet. / Multilayer perceptron. / Pitch angle. / Wind turbine.

Formability of friction stir-welded blanks with different thickness ratios

Author

Kolahgar, S.

Publisher

Springer Boston

Pub. Year

2016

Subjects

Forming. / Friction. / Metal forming. / Metals. / Sheet metal. / Tensile strength. / Tribology. / Welding. / Welds. / Different thickness. / Forming limit curve. / Friction stir welded blanks. / Friction stir welding(FSW) / Metal forming industry. / Tailorwelded blanks (TWBs) / Ultimate tensile strength. / Welded materials.