While methods of code abstraction and reuse are widespread and well researched, methods of proof abstraction and reuse are still emerging. We consider the use of dependent types for this purpose, introducing a completely mechanical approach to proof composition. We show that common techniques for abstracting algorithms over data structures naturally translate to abstractions over proofs. We fir...

The problem considered in this paper is the single server bulk service queuing system characterized by (i) Hyper-Poisson arrival time distribution with k branches, the mean arrival rates depending upon the state of the system; (ii) first come, first served queue discipline; (iii) exponential service time distribution, the mean service rate depending upon the state of the system; and (iv) finite...

Because of their simplicity, risk measures are often employed in financial risk evaluations and related decisions. In fact, the risk measure ρ(X) of a random variable X is a real number customarily determining the amount of money needed to face the potential losses X might cause. At a sort of second-order level, the adequacy of ρ(X) may be investigated considering the part of the losses it does...

Non-volatile Particulate Matter (nvPM) from aircraft gas turbine engines are harmful to both human health and the environment, but can be significantly reduced by using low aromatic Sustainable Aviation Fuel (SAF). As part of Horizon 2020 funded JETSCREEN (JET fuel SCREENing optimisation platform for alternative fuels) project, nvPM gaseous emissions were characterised regulatory compliant samp...

The aim of this research was to translate a reading growth model pigs the modelling humans. individuals in studied species is both species-specific and phenotype-dependant process. process known as ontogenesis has been considered dynamic system. method used study mathematical modelling. A hybrid animal's applied experimental evidence produce dynamic. In study, an earlier formulated anal...

Ethnographic studies of the home revealed the fundamental roles that physical locations and context play in how household members understand and manage conventional information. Yet we also know that digital information is becoming increasing important to households. The problem is that this digital information is almost always tied to traditional computer displays, which inhibits its incorpora...