Sharif Digital Repository

On optimal replacement-repair policy for multi-state deteriorating products under renewing free replacement warranty

Author

Vahdani, H.

Pub. Year

2011

Subjects

Maintenance. / Adomian decomposition. / Adomian Decomposition Method. / Computational procedures. / Deteriorating products. / Deterioration process. / Multi state. / Numerical example. / Optimal parameter. / Optimal values. / Product warranty. / Renewing free-replacement warranty. / Repair models. / Repair policy. / Repairable products. / Two parameter. / Warranty servicing costs. / Working state. / Deterioration. / Optimal systems. / Optimization. / Repair.

Production-inventory-routing coordination with capacity and time window constraints for perishable products: heuristic and meta-heuristic algorithms

Author

Vahdani, B.

Pub. Year

2017

Subjects

Time window. / Customer satisfaction. / Life cycle. / Materials handling. / Mathematical programming. / Numerical methods. / Problem solving. / Production control. / Routing algorithms. / Scheduling. / Supply chains. / Vehicle routing. / Vehicles. / Heuristic. / Inventory. / Metaheuristic. / Production scheduling. / Time windows. / Heuristic algorithms.

Warranty servicing for discretely degrading items with non-zero repair time under renewing warranty

Author

Vahdani, H.

Pub. Year

2013

Subjects

Adomian decomposition. / Adomian decomposition method. / Analytic approximate solution. / Multi-state system. / Renewing free-replacement warranty. / Simulation. / Simulation-based optimizations. / Warranty servicing costs. / Cost benefit analysis. / Maintenance. / Repair.

Warranty servicing for special class of multi-state deteriorating products under renewing free-replacement warranty

Author

Vahdani, H.

Pub. Year

2010

Subjects

Maintenance. / Multi-state. / Deteriorating products. / Experimental design. / Hazard function. / Minimal repair. / Multi state. / Numerical example. / Product warranty. / Repair models. / Repairable products. / Simulation-based optimizations. / Special class. / Two parameter. / Warranty servicing costs. / Working state. / Deterioration. / Discrete event simulation. / Industrial engineering. / Maintainability. / Manufacture. / Repair. / Soft computing. / Safety engineering. / Renewing free replacement warranty.

Reliable design of a forward/reverse logistics network under uncertainty: A robust-M/M/c queuing model

Author

Vahdani, B.

Pub. Year

2012

Subjects

Closed-loop supply chain (CLSC) / Fuzzy multi-objective programming. / Queuing theory. / Reliability. / Robust optimization. / Fuzzy mathematics. / Network design. / Numerical model. / Reliability analysis. / Theoretical study. / Transportation. / Uncertainty analysis.

A modified two-surface plasticity model for saturated and unsaturated soils

Author

Vahdani, M.

Publisher

Springer,

Pub. Year

2022

Subjects

Bounding surface. / Constitutive modeling. / Critical state. / Constitutive models. / Hardening. / Plasticity. / Soils. / Stress analysis. / Bounding surfaces. / Condition. / Critical-state. / Dilatancy. / Net stress. / Saturated and unsaturated soils. / Two-surface plasticity. / Unsaturated soil. / Volumetrics. / Yield surface. / Critical current density (superconductivity) / Computer simulation. / Constitutive equation. / Numerical model. / Plasticity. / Saturated medium. / Soil mechanics. / Stress-strain relationship. / Suction. / Unsaturated medium.

Microwave-induced Cannizzaro reaction over neutral γ-alumina as a polymeric catalyst [electronic resource] / A. Pourjavadi, B. Soleimanzadeh, G. B. Marandi.

Author

Pourjavadi, A. (Ali).

Subjects

Polymeric catalyst. / γ-Alumina. / Solid support reaction. / Cannizzaro reaction. / Microwave irradiation.

SnCl4/SiO2: an efficient heterogeneous alternative for one-pot synthesis of β-acetamidoketones

Author

Mirjalili, B. B. F.

Pub. Year

2009

Subjects

β-acetamidoketones. / One-pot synthesis. / SnCl4/SiO2. / Tin chloride (SnCl4)

Turbulent flow in converging nozzles, part one: Boundary layer solution

Author

Maddahian, R.

Pub. Year

2011

Subjects

Analytical solution. / Boundary layer integral method. / Swirl intensity decay rate. / Analytical model. / Analytical solutions. / Axial velocity. / Boundary layer growth. / Boundary layer thickness. / Boundary-layer solution. / Conical nozzle. / converging nozzle. / Converging nozzles. / Decay rate. / Developed model. / Different cone angles. / Entrance region. / Experimental data. / Fourth-order. / Free vortices. / Governing equations. / Integral method. / Layer parameters. / Numerical simulation. / Predictor-corrector methods. / Robust procedures. / Shear rates. / Spherical coordinate systems. / Swirl intensity. / Turbulent swirling flows. / Velocity profiles. / Boundary layers. / Computer simulation. / Cooling systems. / Decay (organic) / Differential equations. / Mathematical models. / Nozzles. / Shear deformation. / Swirling flow. / Atmospheric thermodynamics.

Numerical investigation of steady density currents flowing down an incline using v2̄ - F turbulence model

Author

Khakzad, N.

Pub. Year

2007

Subjects

Approximation theory. / Concentration (process) / Flow rate. / Numerical methods. / Reynolds equation. / Strain. / Turbulence models. / Momentum equation. / Numerical modeling. / Transport equation. / Current density.

Numerical simulation of turbid-density current using v2̄ - f turbulence model

Author

Mehdizadeh, A.

Pub. Year

2005

Subjects

Coarse particles. / Density currents. / Reservoir sedimentation. / Turbulence model. / Computer simulation. / Current density. / Damping. / Mathematical models. / Reynolds number. / Turbidity. / Turbulence. / Velocity measurement. / Turbulent flow.

Analytical solution for creeping motion of a viscoelastic drop falling through a Newtonian fluid

Author

Vamerzani, B. Z.

Pub. Year

2014

Subjects

Creeping fluid. / Oldroyd-B model. / Perturbation solution. / Viscoelastic drop.

Theoretical and experimental study on the motion and shape of viscoelastic falling drops through Newtonian media

Author

Vamerzani, B. Z.

Publisher

Springer Verlag

Pub. Year

2016

Subjects

Drop shape and motion. / Experimental. / Theoretical. / Viscoelastic droplet.

Minimizing uplink delay in delay-sensitive 5G CRAN platforms

Author

Ataie, A.

Publisher

Institute of Electrical and Electronics Engineers Inc,

Pub. Year

2019

Subjects

5G Cloud Radio Access Network (CRAN) / Fronthaul capacity. / Markov Decision Process (MDP) / Pareto optimization. / Decision theory. / Economic and social effects. / Markov processes. / Mobile telecommunication systems. / Multiobjective optimization. / Pareto principle. / Perturbation techniques. / Power control. / Radio access networks. / Wireless networks. / G clouds. / Markov Decision Processes. / Perturbation theory. / 5G mobile communication systems.

Microwave-induced Cannizzaro reaction over neutral γ-alumina as a polymeric catalyst

Author

Pourjavadi, A.

Pub. Year

2002

Subjects

Cannizzaro reaction. / Microwave irradiation. / Polymeric catalyst. / Solid support reaction. / γ-Alumina.

Feedback bit reduction for antenna selection methods in wireless systems

Author

Shariatpanahi, P.

Pub. Year

2005

Subjects

Algorithms. / Antenna arrays. / Computer simulation. / Correlation methods. / Vector quantization. / Wireless telecommunication systems. / Antenna selection techniques. / Feedback channels. / MIMO algorithm. / Multiple Input Multiple Output (MIMO) / Feedback control.

A distributed locality-aware neighbor selection algorithm for P2P video streaming over wireless mesh networks

Author

Moayeri, F.

Pub. Year

2012

Subjects

Live video streaming. / Multi-hop wireless mesh networks. / Neighbor selection algorithm. / Overlay construction. / Peer to peer. / Peer-to-peer video streaming. / Prominent features. / Proposed architectures. / Algorithms. / Distributed computer systems. / Peer to peer networks. / Standards. / Video signal processing. / Wireless mesh networks (WMN) / MESH networking.

Weighted sparse signal decomposition

Author

Babaie Zadeh, M.

Publisher

IEEE,

Pub. Year

2012

Subjects

Compressive sampling. / Weighted compressive sampling. / Weighted sparse decomposition. / Prior information. / Sparse decomposition. / Sparse signals. / System of linear equations. / Linear systems. / Signal processing. / Atoms.

Effect of miscible nitrogen injection on instability, particle size distribution, and fractal structure of asphaltene aggregates

Author

Moradi, S.

Pub. Year

2012

Subjects

Fractal dimensions. / High pressure filtration. / High pressure microscopy. / Asphaltene aggregates. / Asphaltene aggregation. / Bimodal histograms. / Bubble point pressure. / Cluster aggregation. / Diffusion limited. / Fractal structures. / Gas injection. / Heavier crude. / High-pressure microscopies. / Natural depletion. / Nitrogen injection. / Aggregates. / Asphaltenes. / Bottom hole pressure. / Fractal dimension. / Nitrogen. / Particle size analysis. / Precipitation (chemical) / Agglomeration.