Search results for "Extended time"
showing 2 items of 2 documents
The role of an innovative disinfection system based on silver and hydrogen peroxide in infection prevention
2021
Due to the current pandemic situation caused by SARS-CoV-2 the need of effective precautionary methods is increasing. Besides the transmission of this virus by aerosols induced to air, it is assumed that the transmission route of SARS-CoV-2 is mainly by contaminated surfaces. It has been demonstrated that viruses can contaminate dry surfaces and can be further transmitted to the host even after extended time. The amount of disinfection and hygiene systems has increased drastically over the recent year. Although, the conventional disinfection method via spraying and wiping is labour intensive and efficacy is dependent on the application. Aim of this study was to improve conventional disinfec…
Stress relaxation of a polyisobutylene under large strains
1980
Stress relaxation data after single and double elongational strain “steps” were collected on a commercial polyisobutylene, Oppanol B 50. Analogously to other cases a separability of deformation and time effects was observed over an extended time region for the relaxation after single “steps”. Moreover, by comparing the results after double with those after single steps, it was noted that any rheological equation of integral type having a rigorously constant memory function is not able to describe accurately the full body of results presented here. On the other hand the data were favorably compared with the predictions of a model proposed earlier.