Sharif Digital Repository

Entanglement entropy in long-range harmonic oscillators

Author

Ghasemi Nezhadhaghighi, M.

Pub. Year

2012

Discrete scale invariance and stochastic Loewner evolution

Author

Ghasemi Nezhadhaghighi, M.

Pub. Year

2010

Subjects

Brownian motion. / Complex systems. / Contour line. / Diffusion Coefficients. / Discrete scale invariances. / Fractal curves. / Fractal properties. / Large class. / Scale invariance. / Statistical properties. / Stochastic Loewner evolution. / Two-dimension. / Weierstrass-mandelbrot functions. / Brownian movement. / Invariance. / Partial discharges. / Stochastic systems. / Fractal dimension.

Modeling and statistical analysis of non-gaussian random fields with heavy-tailed distributions

Author

Ghasemi Nezhadhaghighi, M.

Pub. Year

2017

Subjects

Distribution functions. / Gaussian noise (electronic) / Probability density function. / Probability distributions. / Alternative solutions. / Analysis and characterization. / Correlation function. / Heavy-tailed distribution. / Non-gaussian randoms. / Random fluctuation. / Scaling properties. / Self similar properties. / Gaussian distribution.

Numerical approach to unbiased and driven generalized elastic model

Author

Ghasemi Nezhadhaghighi, M.

Pub. Year

2014

Subjects

polymer. / Chemical model. / Chemistry. / Computer simulation. / Statistics. / Diffusion. / Models, Chemical. / Polymers. / Stochastic Processes.

Contour lines of the discrete scale-invariant rough surfaces

Author

Nezhadhaghighi, M. G.

Pub. Year

2011

Subjects

Contour line. / Fractal exponents. / Fractal properties. / Numerical calculation. / Rough surfaces. / Scale-invariance property. / Scale-invariant. / Scaling exponent. / Contour measurement. / Fractals. / Two dimensional. / Surface properties.

Quantum entanglement entropy and classical mutual information in long-range harmonic oscillators

Author

Nezhadhaghighi, M. G.

Pub. Year

2013

First-passage-time processes and subordinated Schramm-Loewner evolution

Author

Nezhadhaghighi, M. G.

Pub. Year

2011

Subjects

Anomalous diffusion. / Fractal curves. / Fractional Brownian motion. / Mathematical tools. / Mean first passage time. / Mean-square displacement. / Random Walk. / Scaling properties. / Self-similar. / Two-dimension. / Brownian movement. / Solvents. / Fractals.

Prevention of distribution network overvoltage by adaptive droop-based active and reactive power control of PV systems

Author

Ghasemi, M. A.

Publisher

Elsevier Ltd

Pub. Year

2016

Subjects

Distribution network. / Droop control. / Fair real power curtailment. / Photovoltaic generation. / Reactive power control. / Voltage rise regulation. / Adaptive control systems. / Algorithms. / Decentralized control. / Electric power distribution. / Electrolysis. / Photovoltaic cells. / Reactive power. / Active and Reactive Power. / Active and reactive power controls. / Droop control. / Grid-connected photovoltaic system. / Operating voltage range. / Photovoltaic generation. / Real power. / Voltage rise. / Power control.

Microstructural evolution mechanism during brazing of Hastelloy X superalloy using Ni–Si–B filler metal

Author

Ghasemi, A.

Pub. Year

2017

Subjects

Boride. / Solidification. / Borides. / Brazing. / Filler metals. / Fillers. / Grain growth. / Heat affected zone. / Isotherms. / Nickel. / Nickel compounds. / Precipitation (chemical) / Silicides. / Superalloys. / Diffusion brazing. / Diffusion-affected zone. / Hastelloy X. / In-situ precipitation. / Isothermal solidification. / Nickel base superalloy. / Nickel silicide. / Solid state precipitation.

Thermal processing strategies enabling boride dissolution and gamma prime precipitation in dissimilar nickel-based superalloys transient liquid phase bond

Author

Ghasemi, A.

Publisher

Elsevier Ltd,

Pub. Year

2019

Subjects

Boride. / Gamma prime precipitation. / Nickel-based superalloy. / Bonding. / Dissolution. / Grain growth. / Heat treatment. / Liquids. / Mechanical properties. / Microstructure. / Nickel. / Nickel alloys. / Precipitation (chemical) / Superalloys. / Thermal processing (foods) / Diffusion-affected zone. / Gamma prime. / In-situ precipitation. / Joint shear strengths. / Nickel- based superalloys. / Processing strategies. / Transient liquid phase. / Transient liquid phase bonding. / Borides.

Fast isothermal solidification during transient liquid phase bonding of a nickel alloy using pure copper filler metal: solubility vs diffusivity

Author

Ghasemi, A.

Publisher

Springer Boston,

Pub. Year

2019

Subjects

Copper. / Diffusion in solids. / Filler metals. / Fillers. / Grain boundaries. / Isotherms. / Liquids. / Nickel alloys. / Solubility. / Diffusion-affected zone. / Isothermal solidification. / Kinetic and thermodynamic parameters. / Kinetics and thermodynamics. / Melting point depressant. / Solid-state diffusion. / Thermodynamic driving forces. / Transient liquid phase bonding. / Solidification.

Intermetallic phase formation during brazing of a nickel alloy using a Ni–Cr–Si–Fe–B quinary filler alloy

Author

Ghasemi, A.

Publisher

Taylor and Francis Ltd,

Pub. Year

2019

Subjects

Brazing. / Hastelloy X. / Intermetallic. / Nickel-base superalloy. / Solid-state precipitation. / Borides. / Eutectics. / Fillers. / Intermetallics. / Precipitation (chemical) / Silicides. / Solidification. / Superalloys. / Deleterious effects. / High volume fraction. / Intermetallic formation. / Intermetallic phase. / Intermetallic phasis. / Nickel base superalloy. / Solid state precipitation. / Nickel alloys.

Microstructural evolution mechanism during brazing of Hastelloy X superalloy using Ni–Si–B filler metal

Author

Ghasemi, A.

Publisher

Taylor and Francis Ltd,

Pub. Year

2018

Subjects

Boride. / Brazing. / Nickel base superalloy. / Borides. / Filler metals. / Fillers. / Grain growth. / Heat affected zone. / Isotherms. / Nickel. / Nickel compounds. / Precipitation (chemical) / Silicides. / Superalloys. / Diffusion brazing. / Diffusion-affected zone. / Hastelloy X. / In-situ precipitation. / Isothermal solidification. / Nickel base superalloy. / Nickel silicide. / Solid state precipitation. / Solidification.

Microstructure-performance relationships in gas tungsten arc welded Hastelloy X nickel-based superalloy

Author

Ghasemi, A.

Publisher

Elsevier Ltd,

Pub. Year

2020

Subjects

Fusion welding. / Hastelloy X. / Microstructure. / Post weld heat treatment. / Stress-rupture. / Tensile properties. / Carbides. / Chromium compounds. / Creep. / Gas metal arc welding. / Grain boundaries. / Heat affected zone. / Heat treatment. / Nickel. / Nickel alloys. / Nickel metallurgy. / Superalloys. / Thermal cycling. / Tungsten. / Constitutional liquation. / Equilibrium microstructures. / Micro-structural observations. / Microstructural heterogeneity. / Microstructure performance. / Nickel- based superalloys. / Non-equilibrium microstructure. / Room-temperature ductility. / Gas welding.

Optimal scheduling of multi-carrier energy system based on energy hub concept considering power-to-gas storage

Author

Habibifar, R.

Publisher

Institute of Electrical and Electronics Engineers Inc,

Pub. Year

2020

Subjects

Energy hub. / Multi carrier systems. / Operating costs. / Power to gas technology. / Cost reduction. / Electric power transmission networks. / Gases. / Heat storage. / Integer programming. / Machinery. / Scheduling. / Combined heat and power. / Electrical energy storages. / Energy generations. / Mixed integer linear programming model. / Multi-carrier systems. / Operation cost. / Optimal scheduling. / Sustainable energy. / Smart power grids.

From as-cast to heat treated X-40 superalloy: Effect of cooling rate after partial solution treatment on microstructural evolutions and mechanical properties

Author

Ghasemi, A.

Publisher

Elsevier Ltd,

Pub. Year

2021

Subjects

Carbides. / Chromium compounds. / Creep. / Hardness. / Heat treatment. / High temperature applications. / Microstructural evolution. / Superalloys. / Heat treatment cycle. / High temperature creep. / Industrial components. / Microstructure and mechanical properties. / Minimum requirements. / Partial dissolution. / Solution treatments. / Subsequent cooling. / Cooling.

Equipment failure rate in electric power distribution networks: An overview of concepts, estimation, and modeling methods

Author

Ghasemi, H.

Publisher

Elsevier Ltd,

Pub. Year

2023

Subjects

Asset management. / Degradation. / Equipment. / Failure rate. / Maintenance. / Power distribution network. / Reliability.

Identification of catecholamine neurotransmitters using fluorescence sensor array

Author

Ghasemi, F.

Publisher

Elsevier,

Pub. Year

2016

Subjects

Quantum dots. / Amines. / Cadmium telluride. / Cluster analysis. / Fluorescence. / Hierarchical systems. / Hormones. / Nanocrystals. / Neurophysiology. / Optical properties. / Oxidation. / Principal component analysis. / Semiconductor quantum dots. / Sensor arrays. / Alkaline conditions. / Catecholamine neurotransmitters. / Concentration ranges. / Fluorescence sensor arrays. / Fluorescence spectra. / Hierarchical cluster analysis. / Oxidation products. / Oxidized catecholamines. / Norepinephrine.

Partial shading detection and smooth maximum power point tracking of PV arrays under PSC

Author

Ghasemi, M. A.

Publisher

Institute of Electrical and Electronics Engineers Inc,

Pub. Year

2016

Subjects

DC/DC converter. / Maximum power point tracking (MPPT) / Partial shading condition. / Photovoltaic power generation system. / DC-DC converters. / Matlab. / Photovoltaic cells. / Solar energy. / Environmental conditions. / Maximum Power Point tracking. / Open loop operation. / Partial shading. / Partial shading condition (PSC) / Perturb and observe algorithm. / Photovoltaic power generation systems. / Photovoltaic systems. / Maximum power point trackers.

Identification of catecholamine neurotransmitters using fluorescence sensor array

Author

Ghasemi, F.

Publisher

Elsevier B.V,

Pub. Year

2016

Subjects

Quantum dots. / Sensor array. / Amines. / Cadmium telluride. / Cluster analysis. / Fluorescence. / Hierarchical systems. / Hormones. / Nanocrystals. / Neurophysiology. / Optical properties. / Oxidation. / Principal component analysis. / Semiconductor quantum dots. / Sensor arrays. / Alkaline conditions. / Catecholamine neurotransmitters. / Concentration ranges. / Fluorescence sensor arrays. / Fluorescence spectra. / Hierarchical cluster analysis. / Oxidation products. / Oxidized catecholamines. / Norepinephrine. / Cadmium telluride quantum dot. / Catecholamine transporter. / Levodopa. / Noradrenalin. / Quantum dot. / Unclassified drug. / Absorption. / Controlled study. / Electron transport. / Fluorescence spectroscopy. / Limit of detection. / Limit of recognition. / Measurement accuracy. / Measurement error. / Parameters. / Particle size. / Priority journal. / Protein determination.