Sharif Digital Repository

A novel double-talk detector based on adaptive estimation of near-end power

Author

Haghshenas, H.

Pub. Year

2007

Subjects

Adaptive filters. / Chlorine compounds. / Electric filters. / Telecommunication systems. / Adaptive estimations. / Adaptive filter. / Double-talk. / Double-talk detector. / DouoietalK detection. / Echo cancellers. / Giegel Algorithm. / In-line. / International conferences. / Malaysia. / Simulation results. / Echo suppression.

Experimental and numerical investigation of fire effect on GFRP sheets used in strengthening RC structures considering anisotropic properties of composite materials

Author

Goodarzvand Chegini, A.

Pub. Year

2008

Subjects

Anisotropic properties. / Buckling and bending. / Composite laminates. / Energy equations. / Experimental models. / Fire effects. / Mechanical models. / Numerical investigations. / Rc structures. / Residual strengths. / Civil engineering. / Composite micromechanics. / Heat flux. / Innovation. / Materials properties. / Laminates.

The square chromatic number of the torus

Author

Goodarzvand Chegini, A.

Publisher

Elsevier

Pub. Year

2016

Subjects

2-distance colouring. / Cartesian product. / Torus.

Enhancement of PMS activation in an UV/ozone process for cyanide degradation: a comprehensive study

Author

Goodarzvand Chegini, Z.

Publisher

Emerald Group Publishing Ltd,

Pub. Year

2020

Subjects

Cyanide. / Hydroxyl radical. / Ozone. / Persulfate. / UV radiation. / Chemical activation. / Chlorine compounds. / Degradation. / Detoxification. / Ethanol. / Positive ions. / Reaction intermediates. / Salicylic acid. / Sodium Azide. / Sulfur compounds. / Wastewater treatment. / Water pollution. / Degradation efficiency. / Design/methodology/approach. / Effect of parameters. / Industrial processs. / Intermediate product. / Optimized conditions. / Ozone concentration. / Photo catalytic degradation. / Cyanides.

Performance improvement of level-crossing A/D converters

Author

Malmir Chegini, M.

Pub. Year

2007

Subjects

Competition. / Modulators. / Telecommunication systems. / A/d converters. / Adaptive level-crossing. / Analog-to-digital converters. / Asynchronous A/D. / Conventional schemes. / International conferences. / Iterative algorithm. / Level-crossing. / Malaysia. / Multi-level. / Non-uniform sampling. / Performance improvements. / Sigma-delta modulators. / Iterative methods.

Comparing the efficacy of catalytic ozonation and photocatalytical degradation of cyanide in industrial wastewater using ACF-TiO2: catalyst characterisation, degradation kinetics, and degradation mechanism

Author

Goodarzvand Chegini, Z.

Publisher

Taylor and Francis Ltd,

Pub. Year

2020

Subjects

ACF. / Cyanide. / Hydroxyl radical. / Ammonia. / Cyanides. / Degradation. / Detoxification. / Ozone. / Ozone water treatment. / Ozonization. / Rate constants. / Salicylic acid. / Titanium dioxide. / Catalyst concentration. / Degradation kinetics. / Degradation mechanism. / Hydroxyl radical generation. / Industrial wastewaters. / Operational parameters. / Ozone concentration. / Pseudo-first order kinetics. / Catalysts.

Comparing the efficacy of catalytic ozonation and photocatalytical degradation of cyanide in industrial wastewater using ACF-TiO2: catalyst characterisation, degradation kinetics, and degradation mechanism

Author

Goodarzvand Chegini, Z.

Publisher

Taylor and Francis Ltd,

Pub. Year

2022

Subjects

Cyanide. / Hydroxyl radical. / Ammonia. / Degradation. / Detoxification. / Ozone. / Ozonization. / Rate constants. / Salicylic acid. / Titanium dioxide. / ACF. / Catalyst characterization. / Catalytic ozonation. / Degradation kinetics. / Degradation mechanism. / Hydroxyl radicals. / Industrial wastewaters. / Kinetics mechanism. / Operation time. / ]+ catalyst. / Catalysts.

Analytical and numerical study of chaos in spatial attitude dynamics of a satellite in an elliptic orbit

Author

Chegini, M.

Publisher

SAGE Publications Ltd,

Pub. Year

2018

Subjects

Lyapunov exponents. / Melnikov–Wiggins method. / Poincare Map. / Spatial attitude dynamics. / Triaxial rigid satellite. / Width of chaotic layers. / Degrees of freedom (mechanics) / Differential equations. / Dynamics. / Lyapunov functions. / Lyapunov methods. / Numerical methods. / Orbits. / Satellites. / Attitude dynamics. / Chaotic layer. / Elliptic orbit. / Four degree of freedom. / Lyapunov exponent. / Quasi-periodic perturbation. / Second-order differential equation. / Six degrees of freedom. / Hamiltonians.

Analytical and numerical study of chaos in spatial attitude dynamics of a satellite in an elliptic orbit

Author

Chegini, M.

Publisher

SAGE Publications Ltd,

Pub. Year

2019

Subjects

Lyapunov exponents. / Melnikov–Wiggins’ method. / Poincaré Map. / Spatial attitude dynamics. / Triaxial rigid satellite. / Width of chaotic layers. / Degrees of freedom (mechanics) / Differential equations. / Dynamics. / Lyapunov functions. / Lyapunov methods. / Numerical methods. / Orbits. / Satellites. / Attitude dynamics. / Chaotic layer. / Elliptic orbit. / Four degree of freedom. / Lyapunov exponent. / Quasi-periodic perturbation. / Second-order differential equation. / Six degrees of freedom. / Hamiltonians.

Chaos analysis in attitude dynamics of a flexible satellite

Author

Chegini, M.

Publisher

Springer Netherlands,

Pub. Year

2018

Subjects

Attitude dynamics. / Chaos. / Flexible satellite. / Melnikov–Wiggins’ method. / Serret–Andoyer transformation. / Width of chaotic layers. / Chaos theory. / Degrees of freedom (mechanics) / Differential equations. / Dynamics. / Flexible structures. / Hamiltonians. / Satellites. / Canonical transformation. / Chaotic layer. / Flexible satellites. / Quasi-periodic perturbation. / Satellite attitude dynamics. / Second-order differential equation. / Three degrees of freedom. / Orbits.

A novel iterative Digital Down Converter

Author

Malmir Chegini, M.

Pub. Year

2007

Subjects

Analog to digital conversion. / Digital arithmetic. / Iterative methods. / Radio receivers. / Telecommunication systems. / Analog-to-digital converters. / Base band signals. / Data streaming. / Digital down converter. / Down converters. / Frequency shifting. / Intermediate frequency band. / International conferences. / Iterative algorithm. / Iterative algorithms. / Malaysia. / Multi channel receiver. / Signal-of-interest. / Digital radio.

Computational simulation of non-Newtonian blood flow in carotid bifurcation for investigation the various rheological blood models

Author

Jahanyfard, E.

Publisher

American Society of Mechanical Engineers (ASME),

Pub. Year

2007

Subjects

Blood vessels. / Diseases. / Fluid dynamics. / Hemodynamics. / Newtonian flow. / Reynolds number. / Shear flow. / Shear stress. / Shear thinning. / Steady flow. / Bifurcation (mathematics) / Computer simulation. / Mathematical models. / Rheology. / Tumors. / Blood flow simulations. / Carotid bifurcation. / Carreau models. / Casson model. / Computational simulation. / Rheological models. / Shear-thinning behavior. / Blood flow simulation. / Casson models. / Non-newtonian models. / Non Newtonian flow. / Blood.

Forecasting influenza hemagglutinin mutations through the lens of anomaly detection

Author

Garjani, A.

Publisher

Nature Research,

Pub. Year

2023

Subjects

Machine Learning (ML) / Anomaly detection (AD) / Forecasting influenza. / Hemagglutinin mutations. / SARS-CoV-2. / Predictive models.

An effective image based surface roughness estimation approach using neural network

Author

Akbari, A. A.

Publisher

IEEE Computer Society,

Pub. Year

2006

Subjects

Approximation theory. / Image analysis. / Image reconstruction. / Neural networks. / Parameter estimation. / Nondestructive surface roughness measurement. / Surface damage. / Surface roughness.

Probability of missed detection as a criterion for receiver placement in MIMO PCL

Author

Majd, M. N.

Publisher

IEEE,

Pub. Year

2012

Subjects

Missed detections. / Multiple antenna. / Multiple receivers. / Passive radars. / Radar performance. / Receive antenna. / Receiving antennas. / MIMO radar.

An efficient method for the ring opening of epoxides with aromatic amines by Sb(III) chloride under microwave irradiation

Author

Ghazanfari, D.

Pub. Year

2008

Subjects

Epoxides. / β-amino alcohols. / Aromatic amines. / SbCl3.

Resource allocation for uav-enabled integrated sensing and communication (isac) via multi-objective optimization

Author

Rezaei, O.

Publisher

Institute of Electrical and Electronics Engineers Inc,

Pub. Year

2023

Subjects

Integrated sensing and communication (ISAC) / Unmanned aerial vehicle (UAV) / Waveform design. / Wireless power transfer (WPT)

MIMO radar signal design to improve the MIMO ambiguity function via maximizing its peak

Author

Chitgarha, M. M.

Publisher

Elsevier,

Pub. Year

2016

Subjects

Ambiguity function. / Multiple-Input Multiple-Output radar. / Power allocation. / Waterfilling. / Waveform design. / Codes (symbols) / Design. / Feedback control. / MIMO systems. / Radar. / Radar signal processing. / Radar systems. / Telecommunication repeaters. / Multiple input multiple output (MIMO) radars. / Power allocations. / MIMO radar.