Subjects: Blind source separation (BSS) / Compressive sensing (CS) / Overcomplete signal representation. / Sparse source separation. / Atomic decomposition. / Over-complete. / Source separation. / Sparse component analysis. / Sparse decomposition. / Estimation. / Independent component analysis. / Linear systems. / Separation.

Sparse component analysis in presence of noise using an iterative EM-MAP algorithm

Author: Zayyani, H.

Publisher: Springer Verlag,

Pub. Year: 2007

Subjects: Additive noise. / Blind source separation. / Gaussian noise (electronic) / Iterative methods. / Problem solving. / Signal processing. / Expectation-Maximization of a Maximum A Posteriori estimation of sources (EM-MAP) / Sparse component analysis. / Sparse decomposition. / Steepest descent method. / Independent component analysis.

A fast approach for overcomplete sparse decomposition based on smoothed ℓ0 norm

Author: Mohimani, H.

Pub. Year: 2009

Subjects: Atomic decomposition. / Overcomplete signal representation. / Sparse decomposition. / Sparse source separation. / Algorithms. / Apartment houses. / Atomic physics. / Atoms. / Decoding. / Independent component analysis. / Linearization. / Object recognition. / Separation. / Signal analysis. / Signal reconstruction. / Speech analysis. / Atomic decomposition. / Blind source separation (BSS) / Compressed sensing. / Sparse component analysis (SCA)

Fast sparse representation based on smoothed ℓ0norm

Author: Mohimani, G. H.

Publisher: Springer Verlag,

Pub. Year: 2007

Subjects: Algorithms. / Linear equations. / Linear programming. / Problem solving. / Over complete atomic decomposition. / Sparse component analysis. / Independent component analysis.

Complex-valued sparse representation based on smoothed ℓ0 norm

Author: Mohimani, G. H.

Pub. Year: 2008

Subjects: Acoustics. / Boolean functions. / Signal processing. / Complex-valued sparse component analysis. / Over-complete atomic decomposition. / Sparse representations. / Speech.

Mobility modeling, spatial traffic distribution, and probability of connectivity for sparse and dense vehicular ad hoc networks

Author: Mohimani, G. H.

Pub. Year: 2009

Subjects: Queueing network. / Connectivity. / Mobility model. / Spatial traffic distribution. / VANET. / Vehicular ad hoc network (VANET) / Automobile parts and equipment. / Mobile ad hoc networks. / Mobile telecommunication systems. / Probability distributions. / Queueing networks. / Queueing theory. / Real time systems. / Roads and streets. / Technological forecasting. / Wireless telecommunication systems. / Ad hoc networks.

Estimating the mixing matrix in Sparse Component Analysis (SCA) based on partial k-dimensional subspace clustering

Author: Movahedi Naini, F.

Pub. Year: 2008

Subjects: Algorithms. / Independent component analysis. / Matrix algebra. / Sparse Component Analysis. / Subspace fitting. / Blind source separation. / Algorithm. / Cluster analysis. / Mathematical analysis. / Priority journal. / Simulation. / Statistical model.

Nonlinear interstory drift contours for idealized forward directivity pulses using "modified fish-bone" models

Author: Khalo, A. R.

Publisher: Multi-Science Publishing Co. Ltd,

Pub. Year: 2015

Subjects: Forward directivity pulses. / Modified fish-bone model. / Nonlinear interstory drift. / Simplified MDOF model. / Bone. / Concrete beams and girders. / Tall buildings. / Contour. / Fish bones. / Forward directivity. / Interstory drifts. / Moment frames. / Near-fault earthquake. / Fish.

Analysis of singularities of a 3DOF parallel manipulator based on a novel geometrical method

Author: Pendar, H.

Pub. Year: 2006

Subjects: Constrained plain method (CPM) / Constraint plane (CP) / Infinite constraint plane (ICP) / Parallel manipulator. / Computational geometry. / Constraint theory. / Matrix algebra. / Parallel processing systems. / Theorem proving. / Manipulators.

Melting enthalpy and entropy of freestanding metallic nanoparticles based on cohesive energy and average coordination number

Author: Omid, H.

Pub. Year: 2011

Subjects: Adjustable parameters. / Analytical model. / Average coordination number. / Body-centered cubic. / Body-centered-tetragonal (bct) structure. / Cohesive energies. / Melting enthalpy. / Metallic nanoparticles. / Physical constants. / Variable coordination. / Crystal structure. / Entropy. / Mathematical models. / Molecular dynamics. / Nanoparticles. / Melting.

On the temperature and residual stress field during grinding

Author: H-Gangaraj, S. M.

Pub. Year: 2010

Subjects: Grinding. / Residual stress. / Temperature field. / Dimensional accuracy. / Finite Element. / Grinding parameters. / Heat coefficients. / Mechanical damages. / Parametric study. / Residual stress fields. / Surface finishes. / Surface residual stress. / Tensile residual stress. / Thermo-mechanical. / Work pieces. / Workpiece velocity. / Finite element method. / Grinding (comminution) / Grinding (machining) / Heat convection. / Manufacture. / Stress concentration. / Residual stresses.

A new lattic LP-based post filter for adaptive noise cancellers in mobile and vehicular applications

Author: Khorram, S.

Pub. Year: 2008

Subjects: Adaptive lattice filter. / Adaptive noise cancellation (ANC) / Adaptive noise cancellations. / Adaptive noise canceller. / Background noise reduction. / Diffuse noise. / Diffuse noise field. / Lattice filter. / Linear prediction. / Noise fields. / Noise reduction. / Noise reductions. / Postfilter. / Processing delay. / Quality measures. / Single channels. / Speech enhancement system. / Vehicular applications. / Vehicular environments. / Acoustic noise measurement. / Automobile parts and equipment. / Communication systems. / Microphones. / Signal processing. / Speech enhancement. / Spurious signal noise. / Speech communication.

Advancing Compressive Strength Prediction in Self-Compacting Concrete via Soft Computing: A Robust Modeling Approach

Author: Ghorbani, A.

Pub. Year: 2024

Subjects: Artificial neural network. / Compressive strength prediction. / Robust approach. / Self-compacting concrete. / Sensitivity analysis.

Cost estimation models for seismic retrofit of masonry school buildings

Author: Mirzaei, J.

Pub. Year: 2024

Subjects: Cost estimation. / Lasso regression. / Project management. / Regression. / Ridge regression. / Seismic retrofit.

Finite element analysis of shot-peening effect on fretting fatigue parameters

Author: H-Gangaraj, S. M.

Pub. Year: 2011

Subjects: Finite element. / Fretting fatigue. / Residual stress. / Shot peening. / Bulk stress. / Compressive residual stress. / Controlling parameters. / Critical surfaces. / Finite element simulations. / Fluctuating loads. / Fretting damage. / Fretting fatigue strength. / Fretting fatigues. / Normal stress. / Sliding movements. / Slip amplitude. / Fatigue of materials. / Fretting corrosion. / Residual stresses. / Shear flow. / Shot peening. / Finite element method.

Mechanically activated synthesis of single crystalline MgO nanostructures

Author: Nusheh, M.

Pub. Year: 2010

Subjects: Kinetics. / Mechanical activation. / Mechanically activated mixtures. / Microfibers. / Nano-structured. / Nucleation and growth. / Rectangular cross-sections. / Scanning electrons. / SEM. / Single-crystalline. / Single-crystalline nanorods. / Source material. / TEM. / Transmission electron. / Vapor solid mechanism. / XRD. / Carbothermal reduction. / Crystalline materials. / Electrons. / Mechanical alloying. / Metallurgy. / Morphology. / Nanorods. / Nanostructured materials. / Scanning electron microscopy. / Transmission electron microscopy.

Boundary control design for vibration suppression and attitude control of flexible satellites with multi-section appendages

Author: Ataei, M. M.

Publisher: Elsevier Ltd,

Pub. Year: 2020

Subjects: Attitude control. / Boundary control. / Flexible satellite. / Vibration suppression. / Asymptotic stability. / Flexible structures. / Solar cell arrays. / Solar concentrators. / Vibration control. / Vibrations (mechanical) / Boundary control design. / Boundary controls. / Boundary feedback. / Dynamic equations. / Flexible satellites. / Partial differential. / Stability of vibrations. / Controllers.

Characterization and calcination behavior of a low-grade manganese ore

Author: Cheraghi, A.

Publisher: Elsevier Ltd,

Pub. Year: 2020

Subjects: Calcination. / Characterization. / Manganese ore. / Pyrolusite. / Reactive diffusion. / Roasting. / Calcite. / Calcium oxide. / Decomposition. / Diffusion. / Ferroalloys. / Hematite. / Lime. / Magnetite. / Particle size. / Particle size analysis. / Rietveld analysis. / Thermolysis. / X ray diffraction. / Argon atmospheres. / Calcium ferrite. / Complex phasis. / Dominant mechanism. / Large regions. / Low temperatures. / Low-grade manganese. / Ores.

Minimizing the error of time difference of arrival method in mobile networks

Author: Malekitabar, A.

Pub. Year: 2005

Subjects: Location method. / Mobile networks. / Non-line of sight errors (NLOS) / TDOA. / Computer simulation. / Error analysis. / Network protocols. / Mobile telecommunication systems.

A fast and novel method of pattern synthesis for non-uniform phased array antennas

Author: Tohidi, E.

Publisher: IEEE Computer Society,

Pub. Year: 2015

Subjects: Antenna arrays. / Directional patterns (antenna) / Least squares approximations. / Radar. / Radar antennas. / Synthesis (chemical) / Angular positioning. / High-directivity. / Least square errors. / Low sidelobe level. / Nonuniform arrays. / Pattern nulling. / Pattern synthesis. / Phased array antennas. / Antenna phased arrays.

Total 9944 records