Kazimierz Wielki University in Bydgoszcz

About: Kazimierz Wielki University in Bydgoszcz is a education organization based out in Bydgoszcz, Poland. It is known for research contribution in the topics: Luminescence & Population. The organization has 1109 authors who have published 2923 publications receiving 19548 citations. The organization is also known as: Casimir the Great University & Uniwersytet Kazimierza Wielkiego w Bydgoszczy.

Rigid polyurethane–polyisocyanurate foams modified with grain fraction of fly ashes:

Abstract: This article describes the results of multidirectional research on producing new polyurethane materials modified with grain fraction of fly ashes. As a result of the conducted research, new polyure...

Comparative analysis of routing protocols for wireless mesh networks

Abstract: The article considers the efficiency of routing protocols for wireless mesh networks. Routing protocols are crucial element for performance of mesh networks, they ensure even flow of data packets and reduce negative influence of interferences. The article contains an overview of routing protocols used in the network mesh. As part of the research includes a comparative analysis of representative routing protocols carried out in the OMNeT++ environment. Results of simulation has been presented and compared.

‘We refugees’: (Un)othering in visual narratives on displacement

Abstract: This article focuses on four contemporary visual narratives which deal with the theme of (literal or metaphorical) refuge, and its difficult circumstances and consequences. The books under discussion have been chosen for their specific visual poetics, which acquires a significant narrative function in each story. The narratives’ portrayals of displacement are evocative for at least two reasons. First, they make metaphorical links between the past and the present, appealing to cultural memory and reworking it in various ways. Second, they communicate their ethical message relying on the affective potential of the material qualities of the medium—the book, and on the emotional impact of embodied memory evoked by visual means.

Studies on Manufacturing, Mechanical Properties and Structure of Poly(butylene adipate- co -terephthalate)-based Green Composites Modified by Coconut Fibers

Abstract: Proper design and manufacturing of biodegradable composites containing natural fibers is highly demanded to improve its functional properties and reduce effects of the mechanical-thermal degradation at the same time. Therefore investigation of poly(butylene adipate-co-terephthalate) (PBAT) modified with coconut fiber (CF) was performed to analyze changes in selected properties of the modified polymer, occurring upon various amounts of CF and different conditions of processing of blends composed of PBAT and CF. Changes in basic parameters of the extrusion process occurring upon two different plasticizing systems, as well as in mass flow rate, mechanical properties, and structure of PBAT/CF composites were examined. It was found that the design of a plasticizing system essentially influenced energy consumption and stability of the processing procedure as well as properties of manufactured materials. Increase in the weight fraction of CF introduced into the polymer matrix caused increase in rigidity and hardness of the composite and reduction in its strength and ability to deform. No effect of the processing conditions on adhesion at the phase boundary was found. All the prepared composites showed strong adhesion between components. Moreover, based on MFR results it was found occurrence of the mechanical-thermal degradation of both phases, especially the dispersed phase.