The effect of a homogeneous temperature field on the frequencies of natural oscillations of a circular sandwich plate is investigated.The hypothesis of a broken line is used as a kinematic one: for identical high-strength thin load-bearing layers, the Kirchhoff hypothesis; for a light incompressible thicker filler, the Timoshenko hypothesis on the
Insects appeared more than 400 million years ago and they represent the richest and most diverse taxonomic group with several million species.Yet, under the combined effect of the loss of natural habitats, the intensification of agriculture with massive use of pesticides, global warming and biological invasions, insects show alarming signs of decli
Infrastructure management represents a critical economic milestone.The current decision-making process in infrastructure rehabilitation is essentially based on qualitative parameters obtained Magnets from visual inspections and subject to the ability of technicians.In order to increase both efficiency and productivity in infrastructure management,
This paper is a step forward towards a construction of 4D cell-complex models implemented using a topological data structure, dual half-edge.This allows for explicit representation of spatial relations among objects, such as ALMOND adjacency relationship, coincidence or order of construction elements, e.g.vertices and edges.A method based on extrus
This paper is a step forward towards a construction of 4D cell-complex models implemented using a topological data structure, dual half-edge.This allows for explicit representation of spatial relations among objects, such as ALMOND adjacency relationship, coincidence or order of construction elements, e.g.vertices and edges.A method based on extrus