Search results for: HIGH STABILITY

• Oxygen concentration regulated the efficient liquefaction of vulcanized natural rubber

  Publication

  • T. Ren
  • X. Yue
  • X. He
  • K. Formela
  • S. Wang

  - POLYMER DEGRADATION AND STABILITY - Year 2024

  Oxidative liquefaction represents a promising avenue for the homogeneous and high-value utilization of waste tire rubber. Given that truck tires predominantly comprise natural rubber (NR), this study investigated the efficient liquefaction of vulcanized NR regulated by oxygen concentration. Remarkably, the liquefaction of vulcanized NR was realized with an oxygen concentration of 75 % at 200 °C within 3 min. FTIR spectroscopy showed...

  Full text to download in external service

• Dataset of phase portraits of the fractional prey-predator model with Holling type-II interaction (without predator harvesting)

  Open Research Data

  open access

  • A. Szafrańska
  • J. Cresson
  • G. Graff

  The need for a fractional generalization of a given classical model is often due to new behaviors which cannot be taken into account by the model. In this situation, it can be useful to look for a fractional deformation of the initial system, trying to fit the fractional exponent of differentiation in order to catch properly the data.

• Ireneusz Kreja dr hab. inż.

  People

  Structural Mechanics Department

  Graduated from the mathematical class at the Nicolaus Copernicus High School in Gdańsk (1974). Master of Sciences in Civil Engineering after studies at Gdansk University of Technology (GUT), Poland (1974-1979). Since 1979 became an employee of the GUT. In 1989 earned a Ph.D. degree in Civil Engineering (with grade "Summa cum Laude") from the GUT. In 2008 obtained a D. Sc. (Habilitation) degree in Civil Engineering (with grade...