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Quantum gravity phenomenology at the dawn of the multi-messenger era: A review

The exploration of the universe has recently entered a new era thanks to the multi-messenger paradigm, characterized by a continuous increase in the quantity and quality of experimental data that is obtained by the detection of the various cosmic messengers (photons, neutrinos, cosmic rays and gravitational waves) from numerous origins. They give us information about their sources in the universe and the properties of the intergalactic medium. Moreover, multi-messenger astronomy opens up the ...

Thermal management of solar photovoltaic module by using drilled cylindrical rods integrated with phase change materials

Solar photovoltaic panels are designed to generate electrical voltage when exposed to sunlight. The temperature of the photovoltaic cell surface rises as a result of sunlight striking the active portion of the panel. The output voltage of the PV cell decreases as the surface temperature of the PV cell rises, resulting in a drop in the PV module's output power. To reduce the operating temperature of the PV module different types of a heat sink having PCM are used in already published studies. ...

The Italian instructions for the design, execution and control of timber constructions (CNR-DT 206 R1/2018)

In 2007 the Italian National Research Council published the technical document CNR-DT 206/2007 “Instructions for the design, execution and control of timber structures”, with the purpose to provide a technical support to the operators of the sector, in line with the most advanced knowledge at that time. Since then, the world of timber engineering has largely used such document, even though the instructions are not mandatory standard rules, so that they became the most common tool in Italy for...

The effect of particle anisotropy on the modulation of turbulent flows

We investigate the modulation of turbulence caused by the presence of finite-size dispersed particles. Bluff (isotropic) spheres versus slender (anisotropic) fibres are considered to understand the influence of the shape of the objects on altering the carrier flow. While at a fixed mass fraction - but different Stokes number - both objects provide a similar bulk effect characterized by a large-scale energy depletion, a scale-by-scale analysis of the energy transfer reveals that the alteration...

Transport across thin membranes: Effective solute flux jump

A model to describe the transport across membranes of chemical species dissolved in an incompressible flow is developed via homogenization. The asymptotic matching between the microscopic and macroscopic solute concentration fields leads to a solute flux jump across the membrane, quantified through the solution of diffusion problems at the microscale. The predictive model, written in a closed form, covers a wide range of membrane behaviors, in the limit of negligible Reynolds and Peclet numbe...

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