Year 2021

• Application of Artificial Neural Networks to Predict Insulation Properties of Lightweight Concrete

  Publication

  • M. Kurpińska
  • L. Kułak
  • T. Miruszewski
  • M. Byczuk

  - Applied Sciences-Basel - Year 2021

  Predicting the properties of concrete before its design and application process allows for refining and optimizing its composition. However, the properties of lightweight concrete are much harder to predict than those of normal weight concrete, especially if the forecast concerns the insulating properties of concrete with artificial lightweight aggregate (LWA). It is possible to use porous aggregates and precisely modify the composition...

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• Isolation Number versus Domination Number of Trees

  Publication

  • M. Lemańska
  • M. J. Souto-Salorio
  • A. Dapena
  • F. Vazquez-Araujo

  - Mathematics - Year 2021

  If G=(VG,EG) is a graph of order n, we call S⊆VG an isolating set if the graph induced by VG−NG[S] contains no edges. The minimum cardinality of an isolating set of G is called the isolation number of G, and it is denoted by ι(G). It is known that ι(G)≤n3 and the bound is sharp. A subset S⊆VG is called dominating in G if NG[S]=VG. The minimum cardinality of a dominating set of G is the domination number, and it is denoted by γ(G)....

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