A STUDY ON THE OPTIMIZATION OF RESIDUAL STRESS DISTRIBUTION IN THE POLYETHYLENE AND POLYKETONE DOUBLE LAYER PIPES

A study on the optimization of residual stress distribution in the polyethylene and polyketone double layer pipes

Pipes are generally used in the variety of industries such as water purification, automobiles and air ventilation and so on which is commonly made from various materials like stainless steel, plastic and iron.Recently, plastic and copper pipes were widely used in the water industries due to their higher corrosive resistivity and durability.However,

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Reliability of different mark-recapture methods for population size estimation tested against reference population sizes constructed from field data.

Reliable estimates of population size are fundamental in many ecological studies and biodiversity conservation.Selecting appropriate methods to estimate abundance is often very difficult, especially if data are scarce.Most studies concerning the reliability of different estimators used simulation data based on assumptions about capture variability

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