Sharif Digital Repository

Sidelobe level optimization using modified genetic algorithm

Author

Varahram, A. A.

Pub. Year

2002

Subjects

Array Factor (AF) / Arrays. / Genetic algorithms. / Optimization. / Sidelobe level.

Development of fcc-Al nanoparticles during crystallization of amorphous Al–Ni alloys containing mischmetal: Microstructure and hardness evaluation [electronic resource] / M. Mansouri, A. Simchi, N. Varahram and E. S. Park.

Author

Mansouri, M. (Mehdi).

Subjects

Aluminum alloy. / Crystallization. / Microstructure. / Nanoindentation. / Rapid solidification.

Solidification of A356 Al alloy: Experimental study and modeling

Author

Shabani, M. O.

Pub. Year

2011

Subjects

A356. / Microstructure. / Modeling.

Microstructure and segregation behaviour of directionally solidified tungsten bearing 25Cr-35Ni-Nb heat-resistant stainless steels

Author

Attarian, M.

Publisher

Taylor and Francis Ltd,

Pub. Year

2017

Subjects

Directionally solidified. / heat-resistant stainless steel. / MC carbide. / tungsten effect. / Carbides. / Cooling. / Differential thermal analysis. / Eutectics. / Field emission microscopes. / Nickel. / Niobium. / Scanning electron microscopy. / Thermoanalysis. / Tungsten. / Tungsten carbide. / Dendritic morphology. / Differential thermal analyses (DTA) / Electron back scatter diffraction. / Field emission scanning electron microscopy. / Heat resistant. / Negative segregations. / Partition coefficient. / Stainless steel.

Non-isothermal kinetic studies of crystallization in amorphous Al86Ni10MM4 alloy [electronic resource] / M. Mansouri, A. Simchi, J. I. Lee, E. S. Park and N. Varahram.

Author

Mansouri, M.

Subjects

Amorphous aluminum alloy. / Kinetics. / Calorimetry. / Autocatalytic model. / Nano-indentation.

Effects of tungsten on erosion-corrosion behavior of high chromium white cast iron

Author

Mousavi Anijdan, S. H.

Pub. Year

2007

Subjects

Corrosion. / Deformation. / Erosion. / Pitting. / Spalling. / Tungsten. / Wear resistance. / High chromium white iron. / Pitting mechanism. / Spalling mechanism. / Chromium. / Cast iron.

Numerical investigation of the effect of sprue base design on the flow pattern of aluminum gravity casting

Author

Baghani, A.

Pub. Year

2013

Subjects

Sprue base design. / Aluminum gravity castings. / Base design. / Gravity casting. / In-gate velocities. / Numerical investigations. / Simulation software. / Surface velocity. / Vena contracta. / Aluminum. / Computational fluid dynamics. / Computer software. / Design. / Lanthanum compounds. / Liquid metals. / Navier Stokes equations. / Velocity distribution. / Vortex flow. / Flow patterns.

Numerical modeling and experimental validation of microstructure in gray cast iron

Author

Jabbari, M.

Publisher

Springer,

Pub. Year

2012

Subjects

Cooling rates. / Experimental validations. / Finite difference model. / Good correlations. / Graphite phase. / Gray cast iron. / Phase volume fraction. / Carbides. / Cooling. / Finite difference method. / Graphite. / Hardness. / Mechanical properties. / Microstructure. / Phase composition. / Cast iron.

Limiting fault currents in wind power plants using superconductive shielded core reactors

Author

Behzadirafi, S.

Pub. Year

2008

Subjects

Asynchronous generators. / Computational methods. / Computer simulation. / Electric currents. / Electric fault location. / Electric power plants. / Energy conversion. / Potential energy. / Potential energy surfaces. / Power plants. / Radiation protection. / Reactor shielding. / Renewable energy resources. / Short circuit currents. / System stability. / 21st century. / Conventional modeling. / Electrical energy. / Fault current. / Generating units. / Induction generator. / Mathematical equations. / Normal operation. / Simulink. / Simulink modeling. / Superconductive shielded core reactor. / System faults. / Test systems. / Transient stability. / Wind power plants. / Wind power.

A new approach to reduce the dynamic order of induction generators

Author

Varahram, M. H.

Publisher

Acta Press,

Pub. Year

2007

Subjects

Computer simulation. / Linearization. / Mathematical models. / System stability. / Balanced realization. / Dynamic order. / Wind power plants. / Asynchronous generators.