Sharif Digital Repository

Low complexity resource allocation in the relay channels with energy harvesting transmitters

Author

Mohassel Feghhi, M.

Publisher

Elsevier B.V,

Pub. Year

2018

Subjects

Convex optimization. / Relay channel. / Resource allocation. / Communication channels (information theory) / Complex networks. / Constrained optimization. / Cooperative communication. / Electric relays. / Random processes. / Sensor networks. / Sensor nodes. / Stochastic models. / Stochastic systems. / Wireless ad hoc networks. / Wireless telecommunication systems. / Convex optimization problems. / Discrete convexity. / Green communications. / Min-max optimization. / Novel techniques. / Relay channels. / Wireless ad hoc and sensor networks. / Wireless communication network. / Energy harvesting.

Power allocation in the energy harvesting full-duplex Gaussian relay channels

Author

Feghhi, M. M.

Publisher

John Wiley and Sons Ltd,

Pub. Year

2017

Subjects

Full duplex. / Gaussian relay channel. / Power allocation. / Algorithms. / Electric relays. / Energy harvesting. / Energy transfer. / Gaussian distribution. / Stochastic systems. / Algorithmic solutions. / Decode - and - forwards. / Full-duplex. / Gaussian relays. / Optimal power allocation. / Optimization solution. / Power allocations. / Sub-optimal algorithms. / Convex optimization.

Radiation properties enhancement of a GSM/WLAN microstrip antenna using a dual band circularly symmetric EBG substrate

Author

Salarrahimi, M.

Pub. Year

2012

Subjects

Circularly symmetric EBG. / Microstrip antennas. / Surface waves. / 1.8 GHz. / Antenna gains. / Circular patch antenna. / Cross-polarization level. / Design frequencies. / Front to back ratio. / Measurement results. / Radiation properties. / Dual Band. / Radiation properties. / Antenna radiation. / Frequency bands.

Miniaturized patch antenna using a circular spiral-based metamaterial

Author

Kavousi, H.

Pub. Year

2017

Subjects

Metamaterial. / Directional patterns (antenna) / Metamaterial antennas. / Metamaterials. / Miniature instruments. / Slot antennas. / Spiral antennas. / Antenna substrates. / Circular spiral. / Miniaturization. / Radiation properties. / Microstrip antennas.

The formation and dissociation energy of vacancies in cementite: A first-principles study

Author

Mehrdad Zamzamian, S.

Publisher

Elsevier B.V,

Pub. Year

2021

Subjects

Dissociation. / Iron. / Vacancies. / Carbon vacancy. / Crystalline structure. / Dissociation energies. / First principle method. / First principles. / First-principle study. / Formation energies. / Interstitial positions. / Mirror plane. / Single vacancies. / Carbides.

Mechanical and metallurgical properties of wide-gap aluminothermic rail welds

Author

Mohassel, A.

Pub. Year

2011

Subjects

Aluminothermic weld. / Fracture toughness. / Microstructure. / Wide-gap weld.

Sidelobe level optimization using modified genetic algorithm

Author

Varahram, A. A.

Pub. Year

2002

Subjects

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

An investigation on the improvement of neutron radiography system of the tehran research reactor by using MCNPX simulations

Author

Amini, M.

Publisher

Korean Nuclear Society,

Pub. Year

2021

Subjects

Neutron radiography system. / Beam tube. / Collimator. / Tehran research reactor.

Atomistic simulation of the effect of carbon content and carbon-rich region on irradiation response of α-Fe on picosecond timescale

Author

Zamzamian, S. M.

Publisher

Elsevier B.V,

Pub. Year

2019

Subjects

C-rich region. / Frenkel pairs. / Molecular dynamic. / Pseudo-precipitation. / Q-Fe low carbon steel. / Atoms. / Cluster analysis. / Irradiation. / Mechanical properties. / Molecular dynamics. / Nuclear fuels. / Nuclear power plants. / Pressure vessels. / Radiation damage. / Atomistic simulations. / LAMMPS. / Molecular dynamics simulations. / Number of carbon atoms. / Primary knock-on atoms. / Reactor Pressure Vessel. / Self-interstitial atoms. / Low carbon steel.

Optimization of array factor in linear arrays using modified genetic algorithm

Author

Varahram, A.

Publisher

Materials and Energy Research Center,

Pub. Year

2004

Subjects

Array factor (AF) / Linear arrays. / Optimization. / Sidelobe level (SLL) genetic algorithm (GA)

Microwave engineering in Iran's academia [around the globe]

Author

Abdipour, A.

Publisher

Institute of Electrical and Electronics Engineers Inc,

Pub. Year

2018

Subjects

Radiation. / Microwave engineering. / Microwave integrated circuits.

Determining of the optimized dimensions of the Marinelli beaker containing source with inhomogeneous emission rate by using genetic algorithm coupled with MCNP and determining distribution type by neural networks

Author

Zamzamian, S. M.

Publisher

Elsevier Ltd,

Pub. Year

2020

Subjects

Genetic algorithm. / HPGe detector. / Marinelli beaker. / MCNPX2.6. / Genetic algorithms. / Germanium compounds. / Neural networks. / Detection efficiency. / Emission probabilities. / Energy resolutions. / HPGe detectors. / Marinelli beakers. / Optimum dimensions. / Radiation interactions. / Particulate emissions. / Cesium 137. / Cobalt 60. / Artificial neural network. / Calibration. / Chemical parameters. / Computer simulation. / Controlled study. / Gamma radiation. / Gamma spectrometry. / Inhomogeneous emission rate. / Mathematical model. / Measurement accuracy. / Molecular dynamics. / Monte Carlo method. / Multilayer perceptron. / Priority journal. / Probability. / Process optimization. / Radiation absorption. / Radiation detection. / Radiation dose distribution. / Radiation scattering. / Radioactivity. / Validation process.

Bandgap tailoring and enhancing the aromatization in cysteine-based carbon dots

Author

Feghhi, F.

Publisher

Academic Press Inc,

Pub. Year

2023

Subjects

Bandgap tailoring. / Carbon dots. / Cysteine. / Luminescence mechanism. / Structural analysis.