Sharif Digital Repository

Dielectric properties of nematic liquid crystal doped with Fe3O4 nanoparticles

Author

Maleki, A.

Publisher

Taylor and Francis Ltd

Pub. Year

2016

Subjects

Dielectric properties. / Magnetic nanoparticles. / Nematic liquid crystals. / Dielectric properties of liquids. / Field emission microscopes. / Liquid crystals. / Liquids. / Nanomagnetics. / Nanoparticles. / Permittivity. / Scanning electron microscopy. / X- ray diffraction. / Dielectric anisotropies. / Dielectric permittivities. / Field emission scanning electron microscopy. / Liquid crystal molecules. / Magnetic nano-particles. / Structural characterization. / Superparamagnetic particles. / Temperature intervals. / Nematic liquid crystals.

Dielectric properties of nematic liquid crystal doped with Fe3O4 nanoparticles

Author

Maleki, A.

Publisher

Taylor and Francis Ltd,

Pub. Year

2017

Subjects

Magnetic nanoparticles. / Nematic liquid crystals. / Dielectric properties. / Dielectric properties of liquids. / Field emission microscopes. / Liquid crystals. / Liquids. / Nanomagnetics. / Nanoparticles. / Permittivity. / Scanning electron microscopy. / X ray diffraction. / Dielectric anisotropies. / Dielectric permittivities. / Field emission scanning electron microscopy. / Liquid crystal molecules. / Magnetic nano-particles. / Structural characterization. / Superparamagnetic particles. / Temperature intervals.

Robustness enhancement of content-based watermarks using entropy masking effect

Author

Sadr, A. H.

Pub. Year

2005

Subjects

Adaptive systems. / Imaging systems. / Opacity. / Robustness (control systems) / Speech intelligibility. / Contrast masking. / Entropy masking. / Host image. / Watermark power enhancement. / Digital watermarking.

Introducing an effective method for extending the high harmonic spectrum plateau from gas targets

Author

Khodabandeh, Z.

Publisher

IOP Publishing Ltd,

Pub. Year

2021

Subjects

Atom lasers. / Atoms. / Color. / Density functional theory. / Fluorine. / Harmonic analysis. / Hydrogen. / Molecules. / Specifications. / Classical methods. / High order harmonic generation. / High-harmonic spectrum. / Hydrogen atoms. / Single attosecond pulse. / Three dimensional space. / Three-color lasers. / Time dependent density functional theory. / Cutoff frequency.

Experimental and analytical approaches toward controlling viscous fingering at the interface of two immiscible fluids using the optimal constant piecewise injection rate

Author

Sadr, S.

Publisher

Elsevier Ltd,

Pub. Year

2023

Subjects

Linear injection rate. / Optimal constant piecewise injection rate. / Saffman-Taylor instability. / Tip-splitting. / Viscous fingering.

Leukocyte's nucleus segmentation using active contour in YCbCr colour space

Author

Sadr, A.

Pub. Year

2010

Subjects

Active Contour. / Image segmentation. / White blood cell nucleus. / YCbCr colour space. / Active contour method. / Active contours. / Automatic segmentations. / Blood cells. / Cell counting. / Cell nucleus. / Colour spaces. / Laboratory procedures. / Nucleus segmentation. / Subimages. / White blood cells. / Whole body. / Ycbcr color spaces. / Biomedical engineering. / Blood. / Color. / Cytology. / Image enhancement. / Cells.

Efficient positioning in MIMO radars with widely separated antennas

Author

Amiri, R.

Publisher

Institute of Electrical and Electronics Engineers Inc,

Pub. Year

2017

Subjects

Doppler shift (DS) / Multiple-input multiple-output (MIMO) radar. / Target localization. / Time delay (TD) / Antennas. / Codes (symbols) / Cramer-Rao bounds. / Feedback control. / MIMO systems. / Numerical methods. / Radar. / Radar antennas. / Radar systems. / Telecommunication repeaters. / Time delay. / Closed form solutions. / Cramer Rao lower bound. / Moving targets. / Multiple input multiple output (MIMO) radars. / Theoretical study. / Weighted-least-squares algorithm. / MIMO radar.

Real-Time cooperative adaptive robust relay beamforming based on kalman filtering channel estimation

Author

Maleki Sadr, M.A.

Publisher

Institute of Electrical and Electronics Engineers Inc,

Pub. Year

2019

Subjects

Extended Kalman filter. / Non-linear programming. / UKF. / Beamforming. / Extended Kalman filters. / Markov processes. / Nonlinear programming. / Signal receivers. / Signal to noise ratio. / Adaptive channel estimation. / Channel uncertainty modeling. / Imperfect CSI. / Non-linear optimization. / Robust optimization. / Signal-to-interference and noise ratios. / Simultaneous estimation. / Unscented Kalman Filter. / Channel estimation.

Positioning in MIMO radars based on constrained least squares estimation

Author

Amiri, R.

Pub. Year

2017

Subjects

Doppler shift (DS) / Semidefinite relaxation (SDR) / Time delay (TD) / Convex optimization. / Least squares approximations. / MIMO systems. / Numerical methods. / Optimization. / Radar. / Radar systems. / Constrained least squares. / Least squares criterion. / Moving target localization. / Multiple input multiple output (MIMO) radars. / Nonconvex optimization. / Semidefinite relaxation. / State-of-the-art methods. / Target localization. / MIMO radar.

Exact solution for elliptic localization in distributed MIMO radar systems

Author

Amiri, R.

Publisher

Institute of Electrical and Electronics Engineers Inc,

Pub. Year

2018

Subjects

Bistatic range (BR) / Maximum likelihood (ML) estimation. / Multiple-input multiple-output (MIMO) radar. / Antennas. / Distributed computer systems. / Maximum likelihood. / MIMO radar. / MIMO systems. / Numerical methods. / Radar. / Radar antennas. / Radar measurement. / Radar systems. / Radar target recognition. / Solution mining. / Transmitters. / Bistatic range. / Multiple input multiple output (MIMO) radars. / Noise levels. / Noise measurements. / Target localization. / Maximum likelihood estimation.