Sharif Digital Repository

Investigation of the impacts of the refill valve diameter on prestrike occurrence in gas circuit breakers

Author

Homaee, O.

Publisher

American Institute of Physics Inc,

Pub. Year

2021

Subjects

Electromagnetic fields. / Equations of state. / Gases. / Maxwell equations. / SF6 insulation. / Sulfur hexafluoride. / Sulfur hexafluoride circuit breakers. / Timing circuits. / Closing operation. / Gas circuit breaker. / Gas state equations. / Gas temperature. / Moving contact. / Multi-physics modeling. / Physical aspects. / Turbulent models. / Navier Stokes equations.

Simulating dynamic plastic continuous neural networks by finite elements

Author

Joghataie, A.

Pub. Year

2014

Subjects

Finite element. / Neural networks. / Numerical modeling. / Wave propagation. / Data processing. / Finite element method. / Numerical models. / Bilinear materials. / Continuous functions. / Continuous materials. / Continuous neural networks. / Dynamic phenomena. / Horizontal displacements. / Input and outputs. / Rectangular plates. / Neurons.

A Deep Learning Approach for Detecting Covid-19 Using the Chest X-Ray Images

Author

Sadeghi, F.

Publisher

Tech Science Press,

Pub. Year

2023

Subjects

Chest X-ray image processing. / Covid-19. / Evolutionary deep learning. / Artificial bee colony (ABC) algorithm. / Polymerase Chain Reaction (PCR) / Deep convolutional neural network (DCNN)

Vertically aligned ZnO@CdS nanorod heterostructures for visible light photoinactivation of bacteria

Author

Zirak, M.

Pub. Year

2014

Subjects

Antibacterial activity. / CdS. / Escherichia coli bacteria. / Hydrothermally synthesized. / Visible light. / Visible-light irradiation. / Water contact angle measurement. / ZnO. / Bacteria. / Heterojunctions. / Loading. / Nanoparticles. / Nanorods. / Photocatalysts. / Photoelectrons. / Synthesis (chemical) / X ray photoelectron spectroscopy. / Zinc oxide. / Cadmium sulfide.

Metallurgical and mechanical properties of underwater friction stir welds of Al7075 aluminum alloy

Author

Rouzbehani, R.

Publisher

Elsevier Ltd,

Pub. Year

2018

Subjects

Mechanical properties. / Microstructure. / Tool rotational speed. / Friction. / Friction stir welding. / Precipitates. / Speed. / Welds. / Average grain size. / Fracture surfaces. / Linear relationships. / Metallurgical and mechanical properties. / Rotational speed. / Travel speed. / Underwater environments. / Underwater friction stir welding. / Aluminum alloys.

Pre-threaded hole friction stir spot welding of AA2219/PP-C30S sheets

Author

Paidar, M.

Publisher

Elsevier Ltd,

Pub. Year

2019

Subjects

Aluminium alloy. / Fracture. / Friction stir spot welding. / Interlocking. / Mechanical properties. / Microstructure. / Polymer. / Adhesives. / Aluminum alloys. / Friction. / Polymers. / Polypropylenes. / Spot welding. / Tensile stress. / Adhesively bonded. / Interfacial cracks. / Mechanical interlocking. / Peak temperatures. / Polymer substrate. / Varying parameters. / Friction stir welding.

Flexible bactericidal graphene oxide–chitosan layers for stem cell proliferation [electronic resource] / M. Mazaheri, O. Akhavan and A. Simchi.

Author

Mazaheri, M.

Subjects

Graphene. / Chitosan. / Antibacterial nanocomposites. / Stem cells.

Superparamagnetic zinc ferrite spinel-graphene nanostructures for fast wastewater purification

Author

Meidanchi, A.

Pub. Year

2014

Subjects

External magnetic field. / Graphene oxides. / Hydrothermal reaction. / Lateral dimension. / Saturated magnetization. / Separation time. / Superparamagnetics. / Wastewater purification. / Azo dyes. / Dyes. / Graphene. / Magnetic fields. / Magnetic separation. / Nanoparticles. / Separation. / Superparamagnetism. / Zinc compounds. / Synthesis (chemical)

Visible light-induced photocatalytic reduction of graphene oxide by tungsten oxide thin films

Author

Choobtashani, M.

Pub. Year

2013

Subjects

Graphene oxide. / WO3 Photocatalyst. / XPS. / Better performance. / Chemical exfoliations. / Graphene oxides. / Photocatalytic reduction. / Reduction level. / Room temperature. / Tungsten oxide films. / Tungsten oxide thin films. / Atomic force microscopy. / Oxides. / Photoelectrons. / Platelets. / Sol-gel process. / Sol-gels. / Stoichiometry. / Thermal evaporation. / Thin films. / Titanium sheet. / Tungsten compounds. / X ray photoelectron spectroscopy. / Oxide films.

Ethylbenzene dehydrogenation to styrene over fresh and used commercial catalysts

Author

Baghalha, M.

Pub. Year

2011

Subjects

Conversion. / Potassium-promoted iron oxide catalyst. / Selectivity. / Used catalyst. / Coke deposition. / Commercial catalyst. / Constant temperature. / Ethylbenzene dehydrogenation. / Experimental conditions. / Fixed bed reactor. / Fresh catalysts. / Initial activity. / Iron oxide catalyst. / Pseudo-steady-state conditions. / Styrene plants. / Transient effect. / Yield of styrene. / Atmospheric pressure. / Catalyst deactivation. / Chemical reactors. / Dehydrogenation. / Ethylbenzene. / Iron oxides. / Potassium. / Reaction rates. / Ship conversion. / Styrene. / Catalyst selectivity.

Improving the photocatalytic activity of graphene oxide/ZnO nanorod films by UV irradiation

Author

Rokhsat, E.

Publisher

Elsevier,

Pub. Year

2016

Subjects

Graphene oxide. / Thin films. / ZnO nanostructures. / Aromatic compounds. / Degradation. / Graphene. / Irradiation. / Nanocomposite films. / Nanorods. / Nanostructures. / Photocatalysts. / Photodegradation. / Zinc oxide. / Graphene oxides. / Hybrid thin film. / Hydrothermally synthesized. / Low concentrations. / Photocatalytic activities. / Photocatalytic reduction. / Photoexcited electron-hole pairs.

Roles of surface coverage increase and re-peening on properties of AISI 1045 carbon steel in conventional and severe shot peening processes

Author

Maleki, E.

Publisher

Elsevier B.V,

Pub. Year

2018

Subjects

Almen intensity. / Coverage. / Mechanical properties. / Microstructure. / Shot peening. / Surface engineering.

Ultrahigh permeable C2N-inspired graphene nanomesh membranes versus highly strained c2n for reverse osmosis desalination

Author

Fakhraee, M.

Publisher

American Chemical Society,

Pub. Year

2019

Subjects

Carbon nitride. / Desalination. / Graphene. / Hydrogen bonds. / Molecular dynamics. / Molecules. / Quantum chemistry. / Reverse osmosis. / Tensile strain. / Barrier energy. / Electrostatic potential maps. / Highly strained. / Molecular dynamics simulations. / Orders of magnitude. / Reverse osmosis desalination. / Salt rejections. / Water molecule. / Osmosis membranes.

Laminar forced convection simulation at different boundary conditions with averaging scheme (numerical and theoretical research)

Author

Adibi, T.

Publisher

International Information and Engineering Technology Association,

Pub. Year

2019

Subjects

Cavity flow. / Complex boundary condition. / Forced convection. / Nusselt number. / Reynolds number.

On the way of policy making to reduce the reliance of fossil fuels: Case study of Iran

Author

Aien, M.

Publisher

MDPI AG,

Pub. Year

2020

Subjects

Energy challenge. / Energy planning. / Energy policy. / Renewable energy potential.

Optimization of shot peening effective parameters on surface hardness improvement

Author

Maleki, E.

Publisher

Korean Institute of Metals and Materials,

Pub. Year

2020

Subjects

Artificial neural network. / Hardness. / Modeling. / Shot peening. / Surface treatments. / Mechanical properties. / Surface hardness. / Different carbon steels.

Fatigue limit prediction and analysis of nano-structured AISI 304 steel by severe shot peening via ANN

Author

Maleki, E.

Publisher

Springer,

Pub. Year

2020

Subjects

Artificial neural networks. / Fatigue limit. / Optimization. / Shot peening. / Corrosion resistance. / Fatigue of materials. / Neural networks. / Steel corrosion. / Topography. / AISI-304 stainless steel. / Experimental investigations. / Fatigue limit prediction. / Metallic material. / Nano-structured. / Parametric -analysis. / Austenitic stainless steel.

Laminar forced convection simulation at different boundary conditions with averaging scheme (numerical and theoretical research)

Author

Adibi, T.

Publisher

International Information and Engineering Technology Association,

Pub. Year

2019

Subjects

Cavity flow. / Complex boundary condition. / Forced convection. / Nusselt number. / Reynolds number.

Structural changes and surface activities of ethylbenzene dehydrogenation catalysts during deactivation

Author

Baghalha, M.

Pub. Year

2007

Subjects

Characterization. / Dehydrogenation. / Ethylbenzene. / Scanning electron microscopy. / Styrene. / X ray diffraction analysis. / Deactivation. / Industrial reactors. / Porosimetry. / Catalysts.