Sharif Digital Repository

Synthesis and application of silica aerogel-MWCNT nanocomposites for adsorption of organic pollutants

Author

Bargozin, H.

Pub. Year

2010

Subjects

Adsorption. / Isotherm. / MWCNT. / Nanocomposite. / Adsorption capacities. / Adsorption properties. / Ambient pressure drying. / Composite weight. / Freundlich isotherm equations. / FTIR. / Multi-wall carbon nanotubes. / N-hexane. / Pollutant adsorption. / Pure silica. / Reinforced composites. / SEM. / Silica aerogel. / Silica aerogels. / Surface area. / TEM. / Adsorption isotherms. / Benzene. / Carbon nanotubes. / Contact angle. / Hexane. / Mechanical properties. / Multiwalled carbon nanotubes (MWCN) / Nanocomposites. / Organic pollutants. / Silica. / Silica gel. / Toluene. / Aerogels. / Composite. / Organic pollutant. / Scanning electron microscopy. / Transmission electron microscopy.

Fundamental study of spray and partially premixed combustion of methane/air mixture

Author

Askari, O.

Pub. Year

2012

Subjects

Spray development. / Direct injection. / Partially premixed combustion. / Spray development. / Stratified mixture. / Complementary metal oxide semiconductors. / Compressed natural gasses (CNG) / Constant volume combustion chambers. / Fuel-air equivalence ratio. / Homogeneous mixture combustion. / Partially premixed combustion. / Methane. / Stratified mixtures. / Air. / Combustion chambers. / Electric sparks. / Fuels. / Internal combustion engines. / Methane. / Mixtures. / Turbulence. / Direct injection.

Flower-like boehmite nanostructure formation in two-steps

Author

Zanganeh, N.

Pub. Year

2014

Subjects

Hydrothermal. / Nanostructures. / Self-assembly.

Gapless chiral excitons in thin films of topological insulators

Author

Jafari, S. A.

Pub. Year

2014

Collective excitations and the nature of Mott transition in undoped gapped graphene

Author

Jafari, S. A.

Pub. Year

2012

Subjects

Collective excitations. / Composite bosons. / Critical points. / Critical value. / Dirac fermions. / Dynamical mean-field theory. / Energy scale. / Gap parameter. / Hubbard interaction. / Low energies. / Luttinger liquids. / Mott insulators. / Mott transitions. / Short range interactions. / Spin-charge separation. / Undoped systems. / Graphene. / Mean field theory. / Velocity.

Nonlinear optical response in gapped graphene

Author

Jafari, S. A.

Pub. Year

2012

Subjects

Closed-form formulae. / Covariant. / Dirac theory. / Functional dependence. / Logarithmic singularity. / Low energies. / Non-linear optical. / Nonlinear optical response. / Optical nonlinearity. / Response functions. / Single particle spectrum. / Graphene. / Nonlinear optics.

Exact phase boundaries and topological phase transitions of the XYZ spin chain

Author

Jafari, S. A.

Pub. Year

2017

Subjects

Chains. / Charge density. / Charge density waves. / Phase boundaries. / Phase space methods. / Spin dynamics. / Statistical mechanics. / Winding. / Co-ordinate system. / Geometric progressions. / Identified parameter. / Order parameter. / Parameter spaces. / Renormalization group. / Simple derivations. / Topological phase. / Topology.

Electric field assisted amplification of magnetic fields in tilted Dirac cone systems

Author

Jafari, S. A.

Publisher

American Physical Society,

Pub. Year

2019

Subjects

Electric fields. / Landforms. / Electric and magnetic fields. / Geometric description. / Layered organic conductors. / Lorentz transformations. / Magnetic and electric fields. / Minkowski space-time. / Perpendicular magnetic fields. / Quantum oscillations. / Magnetic fields.

Tilted-Lorentz symmetry

Author

Jafari, S. A.

Publisher

Isfahan University of Technology,

Pub. Year

2020

Subjects

Spacetime in solid state physics. / Tilted Lorentz group. / Dirac cone.

Analysis and simulation of ring resonator silicon electro-optic modulators based on PN junction in reverse bias

Author

Jafari, O.

Pub. Year

2014

Subjects

Coupled resonators. / Guided waves. / Micro-optical devices. / Modulators. / Optoelectronics. / PN junction. / Ring resonator. / Conformal mapping. / Guided electromagnetic wave propagation. / Linear transformations. / Optical resonators. / Optoelectronic devices. / Resonators. / Silicon. / Spectrum analysis. / Waveguides. / Conformal transformation. / Coupled resonator. / Electro-optic modulators. / Frequency spectrum analysis. / Microoptical devices. / P-n junction. / Planar optical waveguides. / Light modulators.

Neural network-based brain tissue segmentation in MR images using extracted features from intraframe coding in H.264

Author

Jafari, M.

Pub. Year

2012

Subjects

Artificial neural network classifier. / Artificial Neural Network. / Back-propagation neural networks. / Brain tissue. / Brain tissue segmentation. / Classification accuracy. / Coding standards. / Gray matter. / H.264/AVC. / Intraframe coding. / Medical images. / MR images. / Network-based. / Tumor tissues. / White matter. / Brain. / Cerebrospinal fluid. / Codes (symbols) / Compression ratio (machinery) / Computational complexity. / Feature extraction. / Image coding. / Image segmentation. / Motion Picture Experts Group standards. / Neural networks. / Tissue. / Computer vision.

Automatic brain tissue detection in MRI images using seeded region growing segmentation and neural network classification

Author

Jafari, M.

Pub. Year

2011

Subjects

Artificial neural network. / Brain tumor detection. / Classification. / Connected component labeling. / Feature extraction and selection. / Seeded region growing segmentation.

Microstructure generation of severely deformed materials using Voronoi diagram in Laguerre geometry: Full algorithm

Author

Jafari, R.

Pub. Year

2011

Subjects

Applied strain. / Deformation strain. / Deformed samples. / Edge number distribution. / Gamma distribution. / Gamma distribution function. / Inhomogeneities. / Laguerre geometry. / Low strains. / Simulated microstructures. / Uniform structure. / Voronoi cell. / Voronoi diagrams. / Computational geometry. / Distribution functions. / Grain refinement. / Graphic methods. / Microstructure. / Strain. / Poisson distribution.

Three-qubits ground state and thermal entanglement of anisotropic Heisenberg (XXZ) and Ising models with Dzyaloshinskii-Moriya interaction

Author

Jafari, R.

Pub. Year

2011

Subjects

DM interaction. / Quantum information. / Thermal entanglement. / Three qubit.