6 documents found, page 1 of 1
Material de Construção do Ninho da Vespa Asiática - Um contributo
Sedira, Naim; Gomes, Ana; Nepomuceno, Miguel; Paiva, Anabela; Bentes, I.; Pinto, Jorge Tiago Queirós da Silva; Pereira, SandraMuitos trabalhos de investigação têm vindo a ser desenvolvidos no sentido de encontrar novas soluções para os diversos contextos da ciência através da bio-inspiração. Este trabalho está centrado no estudo do ninho da vespa asiática e, em particular, no estudo do seu material de construção. Esta construção natural é complexa em todas a vertentes. A sua complexidade arquitetónica, estrutural, material, funcional,...
Microstructural properties of Asian hornet nest paper-like materials: Prelimina...
Sedira, Naim; Pinto, Jorge; Gomes, Ana; Nepomuceno, Miguel; Pereira, SandraThis paper presents a comprehensive examination of the microstructure and mineralogy of the paper-like material found in Asian hornet nests (referred to as AHN P-LM) and the nearby tree leaves, utilising scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS) and X-ray diffraction (XRD). The analysis conducted through SEM-EDS demonstrates that AHN P-LM is primarily composed of plant fragments...
Caracterização mecânica do material do ninho da vespa asiática
Sedira, Naim; Santos, Moisés; Pereira, Fábio; Santos, Cristóvão; Pereira, Sandra; Nepomuceno, Miguel; Bentes, I.; Pinto, JorgeO ninho da vespa asiática (NVA) tem despertado o interesse de vários investigadores de diversas áreas do conhecimento. Na perspetiva da construção, este ninho revela uma complexidade funcional, arquitetónica, construtiva, estrutural e material deveras interessante. Alguns trabalhos de investigação foram publicados recentemente sobre o estudo desta construção animal. De uma maneira geral, estes trabalhos debruça...
Investigating the Architecture and Characteristics of Asian Hornet Nests: A Bio...
Sedira, Naim; Pinto, Jorge; Ginja, Mário; Gomes, Ana; Nepomuceno, Miguel C. S.; Pereira, SandraThis study investigates the internal architecture of Asian hornet nests (AHNs) using advanced imaging techniques, such as CT scanning and X-ray radiography, to understand their construction and function. The primary objective and significance of this study centre on drawing inspiration from the creative way Asian hornets construct their nests, with a particular focus on the architecture, design, functionality, ...
Novel waste-based alkali-activated binders by combining mining and other minera...
Sedira, NaimAlkali-activated binders (AABs) are a new kind of binders. AABs can be produced from various industrial waste sources, many of which have remained largely unexplored. Several studies have shown the potential of reusing and valorising mining wastes into alkali-activated binders in the last few years. In this research, studies on reusing tungsten mining waste mud (TMWM) as a precursor for AABs are carried out. Th...
Alkali-activation of tungsten mining waste mud blended with waste glass: reacti...
Gomes, João Castro; Magrinho, Manuel; Sedira, Naim; Beghoura, Imed; Humbert, Pedro; Manso, Maria; Fernandes, Ana; Silva, RafaelMines and quarries waste accounts for about 29% of the total generated waste from industrial processes and households in Europe. The reuse of mud tailings as precursor materials for alkali-activated binders and applications are very promising from a technical and environmental point of view. The aim of the present study was to develop added-value solutions to reutilize tungsten mine mud tailings in alkali activ...