Sharif Digital Repository

Viscosity estimation of semi-solid alloys by drop weight backward extrusion test under high speed deformation

Author

Ghadiani, S.

Publisher

Trans Tech Publications Ltd,

Pub. Year

2008

Subjects

Deformation. / Drops. / Extrusion. / Viscosity. / A-356 aluminum alloy. / A356. / Apparent viscosity. / Backward extrusion. / Compressed solids. / Drop weight. / High-speed deformation. / Viscosity estimation. / Aluminum alloys.

Microstructural evolution and mechanical properties of semisolid stir welded zinc AG40A die cast alloy

Author

Narimannezhad, A.

Pub. Year

2009

Subjects

AG40A. / Localized stirring. / Semisolid holding. / Semisolid joining. / Shear punch test. / Zamak-3. / Alloys. / Cerium alloys. / Corrosion protection. / Dies. / Gas heating. / Hardness testing. / Joining. / Mechanical properties. / Pressure effects. / Welds. / Zinc. / Welding.

Numerical study on a heeled one-stepped boat moving forward in planing regime

Author

Dashtimanesh, A.

Publisher

Elsevier Ltd,

Pub. Year

2020

Subjects

Asymmetric planing. / Numerical simulation. / One-stepped planing hull. / Boats. / Computer simulation. / Hulls (ship) / Hydroelasticity. / Speed. / Viscous flow. / Asymmetric condition. / Early stage designs. / Hydrodynamic performance. / Laboratory measurements. / Quantitative agreement. / Reasonable accuracy. / Numerical models. / Hull. / Hydrodynamic force. / Numerical model. / Vessel.

Numerical modeling of die filling of semi-solid A356 aluminum alloy

Author

Foroughi, A.

Publisher

Trans Tech Publications Ltd,

Pub. Year

2008

Subjects

Flow of fluids. / Models. / Rheology. / A-356 aluminum alloy. / A356. / Constitutive parameters. / Finite element software. / Good correlations. / Rheological modeling. / Simulation technique. / Solidification process. / Aluminum alloys.

Morphological features of silicon rich phase in powder thixoformed spray atomized hyper-eutectic Al-Si alloy

Author

Kiani, M.

Publisher

Trans Tech Publications Ltd,

Pub. Year

2008

Subjects

Aluminum alloys. / Eutectics. / Microstructure. / Morphology. / Rapid solidification. / A390. / Atomized powders. / Different heights. / Hypereutectic Al-Si alloys. / Morphological features. / Silicon morphology. / Silicon particles. / Thixo-forming. / Silicon alloys.

Effect of rolling strain on transformation induced plasticity of austenite to martensite in a high-alloy austenitic steel

Author

Bigdeli Karimi, M.

Pub. Year

2008

Subjects

Compressive stress. / Magnetic variables measurement. / Plasticity. / Tensile stress. / Rolling strain. / Transformation induced plasticity (TRIP) / Austenitic steel.

Semisolid joining of zinc AG40A alloy by partial remelting and mechanical stirring

Author

Narimannezhad, A.

Publisher

Trans Tech Publications Ltd,

Pub. Year

2008

Subjects

Ceramic materials. / Flow of gases. / Gas heating. / Hardness. / Heat affected zone. / Joining. / Nitrogen. / Nozzles. / AG40A. / Localized stirring. / Semi-solid joining. / Semisolid holding. / Zamak-3. / Zinc alloys.

Microstructural evolution of AZ91 alloy containing 3%Ca prepared by cooling slope

Author

Khosravani, A.

Publisher

Trans Tech Publications Ltd,

Pub. Year

2008

Subjects

Coarsening. / Cooling. / Grain refinement. / Growth rate. / Magnesium alloys. / Microstructural evolution. / AZ91. / AZ91 magnesium alloys. / Ca addition. / Coarsening kinetics. / Cooling slopes. / Dendritic morphology. / Grain refinement effects. / Grain refining. / Calcium alloys.

Liquid segregation behavior of semi-solid AZ91 alloy during back extrusion test

Author

Khosravani, A.

Pub. Year

2009

Subjects

AZ91. / Az91 alloys. / Az91 magnesium alloys. / Back extrusion. / Cooling slopes. / Darcy's laws. / Extrusion ratios. / High shear rates. / Liquid segregation. / Ram speed. / Semi solids. / Semi-solid billets. / Shear rates. / Thixoforming. / Calcium. / Fluid dynamics. / Liquids. / Magnesium. / Magnesium alloys. / Segregation (metallography) / Shear deformation. / Shear flow. / Extrusion.

Resonant frequency and sensitivity of an AFM microcantilever modeled by the non-local theory

Author

Khosravani, E.

Pub. Year

2011

Subjects

AFM. / Classical theory. / Contact stiffness. / Current models. / Governing equations. / Micro-cantilevers. / Nonlocal. / Nonlocal theory. / Variational approaches. / Atomic force microscopy. / Composite micromechanics. / Equations of motion. / Exhibitions. / Mechanical engineering. / Natural frequencies.

Defining microRNA signatures of hair follicular stem and progenitor cells in healthy and androgenic alopecia patients

Author

Mohammadi, P.

Publisher

Elsevier Ireland Ltd,

Pub. Year

2020

Subjects

Androgenic alopecia. / Hair follicular stem cells. / miR-324-3p. / miRNA.

Defining microRNA signatures of hair follicular stem and progenitor cells in healthy and androgenic alopecia patients

Author

Mohammadi, P.

Publisher

Elsevier Ireland Ltd,

Pub. Year

2021

Subjects

MicroRNA. / MicroRNA 324 3p. / Mitogen activated protein kinase. / Unclassified drug. / MIRN324 microRNA, human. / Protein kinase inhibitor. / TGFBR1 protein, human. / Transforming growth factor beta. / Androgenic alopecia. / Cell migration. / Cell selection. / Controlled study. / Enzyme regulation. / Gene control. / Gene expression. / Gene targeting. / Genetic marker. / Hair cell (inner ear) / Hair follicle cell. / Human. / Human cell. / Human cell culture. / Human tissue. / Immunofluorescence assay. / Keratinocyte. / Molecular dynamics. / Organ culture. / Priority journal. / Real time reverse transcription polymerase chain reaction. / RNA analysis. / Stem cell. / TGF beta signaling. / Wound healing assay. / Cell motion. / Cytology. / Drug effect. / Gene expression profiling. / Genetics. / Growth, development and aging. / Hair follicle. / MAPK signaling. / Metabolism. / Middle aged. / Pathology. / Adult. / Alopecia. / Cell Differentiation. / Cell Line. / Cell Movement. / Cell Proliferation. / Humans. / Keratinocytes. / Male. / MAP Kinase Signaling System. / MicroRNAs. / Protein Kinase Inhibitors. / Receptor, Transforming Growth Factor-beta Type I. / Stem Cells.

Unraveling Legal Complexities: Muslim and non-Muslim Estate Administration Process in Malaysia and Brunei

Author

Nasrul, M. A. D.

Pub. Year

2024

Subjects

Administrative bodies. / Beneficiaries. / Inheritance. / Legal system.

Intelligent semi-active vibration control of eleven degrees of freedom suspension system using magnetorheological dampers

Author

Zareh, S. H.

Pub. Year

2012

Subjects

Clipped optimal control algorithm. / MR damper. / Neuro-fuzzy strategy. / Full car model. / Linear quadratic Gaussian. / MR dampers. / Neuro-Fuzzy. / Optimal control algorithm. / Suspension system. / Algorithms. / Automobiles. / Control. / Damping. / Delay control systems. / Fuzzy control. / Fuzzy logic. / Model automobiles. / Neural networks. / Robustness (control systems) / Suspensions (components) / Controllers.

Performance and exhaust emission characteristics of a spark ignition engine operated with gasoline and CNG blend

Author

Dashti, M.

Pub. Year

2012

Subjects

Emission characteristics. / First law of thermodynamics. / Ignition delay time. / Mass and energy conservation. / Performance characteristics. / Quasi-dimensional combustion model. / Spark-ignition engine. / Thermodynamic process. / Blending. / Combustion chambers. / Computer simulation. / Diesel engines. / Engines. / Fuels. / Newton-Raphson method. / Thermodynamic properties. / Gasoline.

A comparative study of the performance of a SI engine fuelled by natural gas as alternative fuel by thermodynamic simulation

Author

Dashti, M.

Publisher

American Society of Mechanical Engineers (ASME),

Pub. Year

2009

Subjects

Alternative fuels. / Combustion equipment. / Data flow analysis. / Engines. / Fossil fuels. / Gas engines. / Gasoline. / Ignition. / Natural gas. / Natural gasoline. / Newton-Raphson method. / Numerical analysis. / Specific heat. / Thermodynamics. / Combustion pro-cess. / Comparative studies. / Compression process. / Computer simulation codes. / Concentration of. / Cost effective. / Design and analysis. / Engine operations. / Exhaust emission. / Expansion process. / Experimental data. / First law of thermodynamics. / Flame front. / Gibbs function. / Hydrogen ratio. / Ignition delay time. / Internal energies. / Mass burning rate. / Numerical solution. / Performance characteristics. / Pollutant emission. / Pressure and temperature. / SI Engines. / Simulated results. / Spark ignition engines. / Specific enthalpy. / Temperature-dependent specific-heat. / Thermal efficiency. / Thermodynamic simulations. / Computer simulation.

Analytical and experimental analyses of nonlinear vibrations in a rotary inverted pendulum

Author

Dolatabad, M.R.

Publisher

Springer Science and Business Media B.V,

Pub. Year

2022

Subjects

Analytical models. / Dynamic stability. / Inverted pendulum. / Nonlinear vibration. / Closed loop systems. / Dynamical systems. / Equations of motion. / Nonlinear equations. / Pendulums. / State feedback. / Vibration analysis. / Analytical analysis. / Dynamics stability. / Experimental analysis. / Gaining insights. / Non-linear vibrations. / Numerical solution. / Rotary inverted pendulums. / Stable equilibrium. / Vibratory response. / 3D modeling.