Study the basic building wooden structures to withstand the effects of weather and destructive biological agents Alborz research center

With full respect for the principles of linking wood and conservation project Eldar pine because having good mechanical properties and availability of a wood structure in the form of pavilions chose alcove to the octagon without internal column with computer software Sketch up of Alborz research center with trees and landscaping of the complex was

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Modeling Flow and Pressure Fields in Porous Media with High Conductivity Flow Channels and Smart Placement of Branch Cuts for Variant and Invariant Complex Potentials

A long overdue distinction between so-called variant and invariant complex potentials is proposed here for the first time.Invariant complex potentials describe physical flows where a switch of the real and imaginary parts of the function will still describe the same type of physical flow (but only rotated by π/2).Such invariants can be formula

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Numerical Simulation of a Slipper Model with Multi-Lands and Grooves for Hydraulic Piston Pumps and Motors in Mixed Lubrication

A theoretical model of a slipper with multi-lands and multi-grooves for swashplate type axial piston pumps and motors was established, including surface interactions.Further, a numerical simulation was conducted under an unsteady state and mixed lubrication conditions.Four model configurations were considered: A slipper with a single main land; a s

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