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In the present paper, the analysis of the turning capability of the naval supply vessel presented in Part I
(Broglia et al., 2015) is continued with different stern appendages, namely twin rudder and centreline skeg.
The main purpose of the analysis is to assess the capability of an in-house CFD… |
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An improvement of a mathematical model of the galvanic iron corrosion, previously presented by one of the authors, is here proposed. The iron(III)-hydroxide formation is, now, considered in addition to the redox reaction. The PDE system, assembled on the basis of the fundamental holding electro-… |
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We study the kinetics of domain growth of fluid mixtures quenched from a
disordered to a lamellar phase. At low viscosities, in two dimensions, when hydrodynamic
modes become important, dynamical scaling is verified in the form C(k, t) ~ L
?
f[(k - kM)L],
where C is the structure factor with… |
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We employ Lyapunov functions to study boundedness and stability of dynamic equations
on time scales. Most of our Lyapunov functions involve the term |x| and its ?-derivative.
In particular, we prove general theorems regarding qualitative analysis of solutions of delay
dynamical systems and then use… |
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Numerical optimisation of a ship hull requires, like every shape design optimisation problem, the definition of a parametric expression of the object to be deformed. In this phase, some decisions are taken regarding the shape variability and the portion of the hull to be modified: the… |
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We consider a simplified 1-dimensional PDE-model describing the effect of contact inhibition in
growth processes of normal and abnormal cells.
Varying the value of a significant parameter, numerical tests suggest
two different types of contact inhibition between the cell populations:
the two… |
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In the colourful travelling salesman problem (CTSP), given a graph G with a (not necessarily distinct) label (colour) assigned to each edge, a Hamiltonian tour with the minimum number of different labels is sought. The problem is a variant of the well-known Hamiltonian cycle problem and has… |
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A nullomer is an oligomer that does not occur as a subsequence in a given DNA sequence, i.e. it is an absent word of that sequence. The importance of nullomers in several applications, from drug discovery to forensic practice, is now debated in the literature. Here, we investigated the nature of… |
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A new technique is presented to create nosologic images of the brain based on magnetic resonance imaging (MRI) and magnetic resonance spectroscopic imaging (MRSI). A nosologic image summarizes the presence of different tissues and lesions in a single image by color coding each voxel or pixel… |
