Sharif Digital Repository

Surface and interface effects on torsion of eccentrically two-phase fcc circular nanorods: Determination of the surface/interface elastic properties via an atomistic approach

Author

Pahlevani, L.

Pub. Year

2011

Subjects

As interfaces. / Atomistic approach. / Classical theory. / Elastic properties. / Interatomic potential function. / Laurent series expansion. / Nano electromechanical systems. / Nano-sized. / Non-coherent. / Numerical results. / Potential function. / Rigorous solution. / Saint-Venant torsion. / Stress distribution. / Structural elements. / Surface and interface properties. / Surface and interfaces. / Surface elastic constants. / Surface energies. / Surface stress. / Torsional rigidity. / Conformal mapping. / Elasticity. / Electromechanical devices. / Interfacial energy. / Molecular dynamics. / Nanorods. / Phase interfaces. / Stress concentration. / Surface chemistry. / Torsional stress. / Surface properties.

Torsion of an eccentrically two-phase circular nanobar

Author

Pahlevani, L.

Pub. Year

2010

Subjects

Classical theory. / Laurent series expansion. / Micro/nano devices. / Nano scale. / Nano-sized. / Numerical results. / Rigorous solution. / Saint-Venant torsion. / Scanning probe microscope. / Structural elements. / Surface and interfaces. / Surface elasticities. / Torsional rigidity. / Conformal mapping. / Elasticity. / Nanotubes. / Nanowires. / Probes. / Torsional stress. / Phase interfaces.

Elastic fields of interacting point defects within an ultra-thin fcc film bonded to a rigid substrate

Author

Shodja, H. M.

Pub. Year

2013

Subjects

Interacting point defects. / Lattice statics method. / Ultra-thin fcc film.

Rheological properties and the micromodel investigation of nanosilica gel-reinforced preformed particle gels developed for improved oil recovery

Author

Aqcheli, F.

Publisher

Elsevier B.V,

Pub. Year

2020

Subjects

Glass micromodel. / Nanosilica gel. / Oil recovery. / Preformed particle gel. / Rheological properties. / Amides. / Floods. / Free radical polymerization. / Free radicals. / Gels. / Oil fields. / Oil well flooding. / Petroleum industry. / Petroleum reservoir engineering. / Petroleum reservoirs. / Reinforcement. / Secondary recovery. / Stability. / X ray powder diffraction. / Acrylamide copolymers. / Improved oil recovery. / Mature oil reservoirs. / Nanosilica particles. / Rheological property. / Stability properties. / Swelling properties. / Visco-elastic behaviors. / Polypropylene oxides. / Enhanced oil recovery. / Gas field. / Gel. / Oil field. / PH. / Polymerization. / Rheology. / Salinity. / Viscoelasticity. / Well technology.

Synthesis of a custom-made suspension of preformed particle gel with improved strength properties and its application in the enhancement of oil recovery in a micromodel scale

Author

Aqcheli, F.

Publisher

Elsevier B.V,

Pub. Year

2021

Subjects

Acrylic monomers. / Amides. / Fourier transform infrared spectroscopy. / Fourier transforms. / Morphology. / Particle size analysis. / Scanning electron microscopy. / Shear flow. / Shear thinning. / Suspensions (fluids) / Thermogravimetric analysis. / Viscoelasticity. / 2-acrylamido-2-methylpropanesulfonic acid. / Acrylamides. / Cohesive energy density. / Micro-modeling. / Oil recoveries. / Particle gels. / Preformed particle gel. / Preformed particle gel suspension. / Sweep tests. / Thermal. / Thermodynamic stability. / Concentration (composition) / Enhanced oil recovery. / Experimental study. / Fluid injection. / FTIR spectroscopy. / Gel. / Microstructure. / Particle size. / Performance assessment. / Strength. / Swelling. / Thermogravimetry. / Varanidae.

Fabrication of a hydrogel reinforced with titanium nanoparticles to reduce fine migration and remediation of formation damage during low-salinity waterflooding

Author

Saghandali, F.

Pub. Year

2024

Subjects

Sand control. / Turbidity. / Water and alkaline flooding. / Alkalinity. / Chemical stability. / Contact angle. / Floods. / Hydrogels. / Nanocomposites. / Reinforcement. / Shear thinning. / Titanium. / Alkaline flooding. / Fine migration. / Formation damage. / Hydrogel nanocomposites. / Low salinity. / Property. / Synthesised. / Titania. / Damage. / Flooding. / Nanoparticle. / Polymer. / Remediation. / Salinity.

Profile control and oil displacement in high temperature and salinity reservoirs: Evaluation of deformable microgel system

Author

Pahlevani, H.

Pub. Year

2024

Subjects

Deformable microspheres microgel. / Suspension. / Acrylic monomers. / Amides. / Ductile fracture. / Elastic moduli. / Elasticity. / Emulsification. / Emulsions. / Enhanced recovery. / Floods. / Gels. / Microspheres. / Oil well flooding. / Petroleum reservoir engineering. / Petroleum reservoirs. / Rheology. / Shear flow. / Shear thinning. / Suspensions (fluids) / Swelling. / Viscoelasticity. / Deformable microsphere microgel. / High temperature and salinity reservoirs. / Microgel. / Microgel suspensions. / Oil displacement. / Particles sizes. / Performance. / Profile control. / Viscoelastic properties. / Viscoelastics. / Particle size.

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.