Sharif Digital Repository

An experimental investigation of permeability impairment under dynamic flow conditions due to natural depletion in an Iranian oilfield

Author

Khalifeh, M.

Pub. Year

2013

Subjects

Carbonate. / Pore volume. / Deposition mechanism. / Oil viscosity. / Permeability impairment. / Sandstone. / Asphaltene deposition. / Carbonate rock. / Dynamic flow conditions. / Dynamic parameters. / Experimental investigations. / Hydrocarbon gas. / Mass balance. / Natural depletion. / Oil reservoirs. / Outlet pressures. / Permeability reduction. / Porosity reduction. / Primary mechanism. / Production problems. / Reservoir rock. / Reservoir temperatures. / Surface deposition. / Asphaltenes. / Carbonates. / Deposition. / Dynamics. / Experiments. / Hydrocarbons. / Oil fields. / Petroleum reservoirs. / Rocks. / Water injection. / Petroleum reservoir engineering.

Experimental investigation of asphaltene-induced core damage during miscible CO2 injection

Author

Bolouri, H.

Pub. Year

2014

Subjects

Asphaltene. / Asphaltenes. / Carbonation. / Deposition. / Porosity. / Sandstone. / Asphaltene content. / Asphaltene deposition. / Experimental investigations. / IP-143. / Permeability and porosities. / Permeability damage. / Permeability impairments. / Reduction models. / Carbon dioxide.

An experimental and modeling study of asphaltene deposition due to CO 2 miscible injection

Author

Bolouri, H.

Pub. Year

2013

Subjects

Asphaltene deposition. / CO2 injection. / Entrainment mechanism. / Miscible. / Permeability. / Coreflood. / Deposition mechanism. / Injection test. / Modeling studies. / Permeability reduction. / Asphaltenes. / Carbon dioxide. / Mechanical permeability. / Porous materials. / Deposition.

Permeability impairment study due to asphaltene deposition: experimental and modeling approach

Author

Bolouri, S. H.

Pub. Year

2012

Subjects

Asphaltene deposition. / Carbonate cores. / General model. / Initial permeability. / Injection test. / Linear variation. / Mass models. / Mechanical entrapment. / Model validation. / Modeling approach. / Oil flow. / Particulate process. / Pore blocking. / Sandstone cores. / Variation models. / Adsorption. / Asphaltenes. / Carbon dioxide. / Deposition. / Oil bearing formations. / Porous materials. / Mechanical permeability. / Experimental study. / Numerical model. / Permeability. / Porous medium.

A stacked neural network approach for yield prediction of propylene polymerization

Author

Monemian, S. A.

Pub. Year

2010

Subjects

Modeling. / Polyolefins. / Ziegler-Natta polymerization. / Catalyst precursors. / Catalyst system. / Cocatalyst. / Electron donors. / Experimental data. / Industrial processs. / Internal electron donor. / Operational parameters. / Phthalates. / Propylene polymerization. / Reaction yields. / Slurry polymerization. / Stacked neural network. / Stacked neural networks. / Yield prediction. / Ziegler natta polymerization. / Catalysis. / Catalysts. / Esters. / Nonlinear systems. / Polymerization. / Polyolefins. / Propylene. / Neural networks. / Catalyst. / Neural network. / Polymerization. / Polyolefin. / Precursor. / Predictive model.

Magnetic nanocomposites for biomedical applications

Author

Naghdi, M.

Publisher

Elsevier B.V,

Pub. Year

2022

Subjects

Biomaterials. / Cell labeling. / Cytocompatibility. / Scaffolds. / Diagnosis. / Histology. / Magnetism. / Medical applications. / Nanostructures. / Scaffolds (biology) / Tissue. / Tissue regeneration. / Biomedical applications. / Cell labelling. / Disease diagnosis. / Magnetic nanocomposites. / Magnetic nanostructures. / Nanobuilding blocks. / Regenerative medicine. / Stem-cell. / Tissues engineerings. / Biomaterial. / Nanocomposite. / Chemistry. / Tissue engineering. / Biocompatible Materials. / Magnetic Phenomena. / Nanocomposites. / Nanotechnology. / Stem cells.

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.

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.

Size-dependent interaction of an edge dislocation with an elliptical nano-inhomogeneity incorporating interface effects

Author

Shodja, H. M.

Pub. Year

2012

Subjects

Nano scale. / Burgers vector orientation. / Characteristic size. / Classical solutions. / Complex potentials. / Elastic behavior. / Elasticity effect. / Elliptical inhomogeneity. / Image force. / Inhomogeneities. / Interface curvatures. / Interface effect. / Interface stress. / matrix. / Normalized image. / Radius of curvature. / Size effects. / Stable equilibrium. / Stress field. / Elastic moduli. / Elasticity. / Nanotechnology. / Stresses. / Surface tension. / Edge dislocations.

Control of parallel three- phase inverters using optimal control and SVPWM technique

Author

Nazaripouya, H. R.

Pub. Year

2009

Subjects

Circulating current. / Control strategies. / Load change. / Load-sharing scheme. / Optimal control strategy. / Optimal controls. / Stationary frame. / Steady state. / Switching scheme. / Three phase system. / Three-phase inverter. / Cost functions. / Optimal control systems. / Pulse width modulation. / Switching functions. / Industrial electronics.

Identification of an aspidospermine derivative from borage extract as an anti-amyloid compound: A possible link between protein aggregation and antimalarial drugs

Author

Kalhor, H. R.

Publisher

Elsevier Ltd,

Pub. Year

2017

Subjects

Amyloid formation. / Aspidospermine. / Bioactive compound. / Borage officinalis. / Lysozyme. / Antimalarial agent. / Hen egg lysozyme. / Indole alkaloid. / Plant extract. / Quinoline derivative. / Antagonists and inhibitors. / Borago. / Chemistry. / Drug effects. / Isolation and purification. / Molecular docking. / Plant leaf. / Protein aggregation, pathological. / Amyloid. / Antimalarials. / Indole alkaloids. / Molecular docking simulation. / Muramidase. / Plant extracts. / Plant leaves. / Protein folding. / Quinolines.