The dynamics of melt spinning was analyzed by deriving a set of simultaneous partial differential equations.Equation of heat balance:
Equation of force balance:
Equation of material balance:
In the above equations, the distance x from the spinneret and time τ are the independent variables; temperature t, local velocity v, and cross‐sectional area A are the dependent variables. It is assumed that tensile viscosity β is a function of temperature t alone, and the spinning tension F is a pure time function. Steady‐state (∂/∂τ = 0) solutions of the above equations showed a fairly good agreement with the experimentally measured values of temperature t(x) and thickness A(x).
A significant linear radiation dose-response for MDS exists in atomic bomb survivors 40 to 60 years after radiation exposure. Clinicians should perform careful long-term follow-up of irradiated people to detect MDS as early as possible.
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