Sharif Digital Repository

An architecture for a context-aware service broker in ubiquitous computing environments

Author

Ganji Saffar, Y.

Publisher

IEEE Computer Society,

Pub. Year

2006

Subjects

Computation theory. / Intelligent agents. / Problem solving. / Telecommunication services. / Context-aware service brokers. / Ubiquitous computing environments. / Computer architecture.

Parallel online ranking of web pages

Author

Ganji Saffar, Y.

Publisher

IEEE Computer Society,

Pub. Year

2006

Subjects

Algorithms. / Computational methods. / Computer graphics. / Indexing (of information) / Query languages. / Search engines. / Websites. / Online ranking. / Ranking algorithms. / Web graphs. / Online searching.

Effect of rubber component on the performance of brake friction materials

Author

Saffar, A.

Pub. Year

2012

Subjects

Polymer-matrix composites. / Wear. / Brake friction materials. / Brake materials. / Entropic contributions. / Friction force. / Frictional behavior. / Higher temperatures. / Organic binders. / Polymeric binder. / Resin-based materials. / Rubber component. / Sliding velocities. / Styrene butadiene rubber. / Viscoelastic response. / Wear rates. / Binders. / Brakes. / Butadiene. / Friction materials. / Mechanical properties. / Phenolic resins. / Phenols. / Polymer matrix composites. / Polymers. / Resins. / Rubber. / Styrene. / Tribology. / Wear of materials. / Friction.

Studies on the friction and wear characteristics of rubber-based friction materials containing carbon and cellulose fibers

Author

Shojaei, A.

Pub. Year

2011

Subjects

Cellulose fiber. / Coefficient of frictions. / Friction and wear characteristics. / Friction test. / High sliding velocities. / Reference material. / Sliding velocities. / Surface microstructures. / Tribological characteristics. / Two-roll mill. / Wear rates. / Brakes. / Cellulose. / Friction. / Friction materials. / Glass transition. / Rubber. / Textile fibers. / Tribology. / Wear of materials. / Wear resistance. / Carbon fibers.

Using sliding mode control to adjust drum level of a boiler unit with time varying parameters

Author

Moradi, H.

Pub. Year

2010

Subjects

Boiler unit. / Boiler units. / Control signal. / Drum Level. / Drum water level. / Economic operations. / Generator systems. / Input variables. / Linear model. / Mass rate. / Model parameters. / Model uncertainties. / Operating condition. / Output variables. / Parameter mismatches. / Sliding mode controller. / Stable control. / Time varying parameter. / Time varying parameters. / Boilers. / Computer simulation. / Controllers. / Sliding mode control. / Steam power plants. / Systems analysis. / Uncertainty analysis. / Water levels. / Boiler control.

Theoretical and experimental analysis of the thermal, fade and wear characteristics of rubber-based composite friction materials

Author

Saffar, A.

Pub. Year

2010

Subjects

Fade. / Viscoelastic. / Wear. / Cellulose fiber. / Coefficient of frictions. / Experimental analysis. / Experimental data. / Fiber reinforcement. / Glassy behavior. / matrix. / Model parameters. / Reinforced fibers. / Rubbery state. / Semiempirical models. / Sliding velocities. / Viscoelastic response. / Wear characteristics. / Wear rates. / Brakes. / Fiber optic sensors. / Fibers. / Friction. / Friction materials. / Glass transition. / Reinforced plastics. / Rubber. / Tribology. / Carbon fibers.

Numerical simulation of ductile crack growth under cyclic and dynamic loading with a damage-viscoplasticity model

Author

Khoei, A. R.

Pub. Year

2013

Subjects

Crack closure effect. / Ductile crack propagation. / Dynamic/cyclic loading. / Rate-dependent visco-plasticity. / Adaptive finite element methods. / Combined hardenings. / Computational algorithm. / Crack closure effects. / Ductile crack growth. / Ductile materials. / Finite element implementation. / Rate independents. / Computer simulation. / Continuum damage mechanics. / Crack propagation. / Cracks. / Ductile fracture. / Dynamic loads. / Finite element method. / Loading.

Biological evaluation of a novel tissue engineering scaffold of Layered Double Hydroxides (LDHs)

Author

Fayyazbakhsh, F.

Pub. Year

2012

Subjects

ALkaline phosphatase. / Aluminum nitrate. / Biological evaluation. / Biological properties. / Bone tissue engineering. / Calcium nitrate. / Cellular response. / Composite scaffolds. / FTIR. / Layered double hydroxides. / Layered morphology. / Membrane lamination. / MTT assays. / Osteoconductivity. / Osteosarcoma cells. / Solvent casting method. / Synthesized powder. / Tissue engineering scaffold. / Toxic response. / Alkalinity. / Bioceramics. / Biocompatibility. / Bone. / Calcium. / Cell culture. / Cells. / Fourier transform infrared spectroscopy. / Phosphatases. / Powders. / Scaffolds. / Scanning electron microscopy. / Tissue. / Tissue engineering. / X ray diffraction. / X ray powder diffraction. / Scaffolds (biology)

The effects of reaction conditions on block copolymerization of chitosan and poly(ethylene glycol)

Author

Ganji, F.

Pub. Year

2010

Subjects

Aqueous solutions. / Block copolymerization. / Block polymerization. / Drug delivery applications. / In-situ-gelling. / Nitrogen atmospheres. / Optimum reaction conditions. / PEG. / Potassium persulfate. / Reaction conditions. / Reaction parameters. / Reaction temperature. / Reaction time. / Thermo sensitive. / Block copolymers. / Chitin. / Chitosan. / Copolymerization. / Drug delivery. / Ethylene. / Ethylene glycol. / Polyethylene oxides. / Potassium. / Polyethylene glycols.

Chitosan-g-PLGA copolymer as a thermosensitive membrane

Author

Ganji, F.

Pub. Year

2010

Subjects

Grafting. / PLGA. / Thermosensitive. / Acryloyl chloride. / Betamethasone. / Chitosan membrane. / Coupling reagents. / Covalent attachment. / Discontinuous functions. / Drug delivery system. / Drug permeation. / FTIR spectroscopy. / Graft copolymerization. / Grafting membranes. / Higher temperatures. / Model drugs. / Permeability coefficients. / Poly-lactide-co-glycolide. / Reversible swelling. / Sodium phosphate. / Swelling behavior. / Swelling ratio. / Thermo sensitive. / Thermosensitive copolymers. / Upper critical solution temperature. / Vancomycin. / Biocompatibility. / Capillarity. / Chitin. / Chitosan. / Chlorine compounds. / Controlled drug delivery. / Copolymerization. / Fourier transform infrared spectroscopy. / Graft copolymers. / Grafting (chemical) / Multilayers. / Plastic products. / Sodium. / Sodium compounds. / Membranes.

Synthesis and characterization of a new thermosensitive chitosan-PEG diblock copolymer

Author

Ganji, F.

Pub. Year

2008

Subjects

Block copolymers. / Chitin. / Chitosan. / Colloids. / Copolymerization. / Ethylene. / Ethylene glycol. / Free radicals. / Gelation. / Glycols. / Hydrogels. / Plastic products. / Polyethylene glycols. / Polymers. / Potassium. / Sulfate minerals. / Block co-polymerization. / Block copolymer. / Body temperatures. / Diblock co-polymer. / Hydrogel. / Low temperature. / Polyethylene glycol. / Synthesis and characterization. / Thermosensitive. / Amines.

Using sliding mode control to adjust drum level of a boiler unit with time varying parameters

Author

Moradi, H.

Pub. Year

2010

Subjects

Boiler unit. / Control signal. / Drum Level. / Drum water level. / Economic operations. / Generator systems. / Input variables. / Linear model. / Mass rate. / Model parameters. / Model uncertainties. / Operating condition. / Output variables. / Parameter mismatches. / Sliding mode controller. / Stable control. / Time varying parameter. / Boilers. / Computer simulation. / Controllers. / Sliding mode control. / Steam power plants. / Systems analysis. / Uncertainty analysis. / Water levels. / Boiler control.

Multivariable control of an industrial boiler-turbine unit with nonlinear model: A comparison between gain scheduling and feedback linearization approaches

Author

Moradi, H.

Publisher

Sharif University of Technology,

Pub. Year

2013

Subjects

Boiler-turbine. / Nonlinear model. / Boilers. / Controllers. / Electric machine control. / Feedback. / Linearization. / MIMO systems. / Multivariable control systems. / Nonlinear feedback. / Nonlinear systems. / Scheduling. / State space methods. / Turbines. / Water levels. / Boiler turbines. / Environmental awareness. / Feedback linearization approaches. / Gain Scheduling. / Multi-input-multi-output models. / Multivariable control. / State space representation. / Feedback linearization. / Comparative study. / Control system. / Nonlinearity. / performance assessment. / power plant. / pressure gradient. / Tracking. / Turbine. / Uncertainty analysis. / Water level.