A semi-empirical model for stress relaxation including primary and secondary creep stages

A mechanical model for creep, recovery a

A mechanical model for creep, recovery and stress relaxation in polymeric materials

✍ Kevin S. Fancey 📂 Article 📅 2005 🏛 Springer 🌐 English ⚖ 886 KB

Modeling of the primary and secondary dr

Modeling of the primary and secondary drying stages of the freeze drying of pharmaceutical products in vials: Numerical results obtained from the solution of a dynamic and spatially multi-dimensional lyophilization model for different operational policies

✍ P. Sheehan; A. I. Liapis 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 510 KB

A rigorous unsteady state and spatially multidimensional model is presented and solved to describe the dynamic behavior of the primary and secondary drying stages of the lyophilization of a pharmaceutical product in vials for different operational policies. The results in this work strongly motivate