Polytechnic University of Turin

About: Polytechnic University of Turin is a education organization based out in Turin, Piemonte, Italy. It is known for research contribution in the topics: Finite element method & Computer science. The organization has 11553 authors who have published 41395 publications receiving 789320 citations. The organization is also known as: POLITO & Politecnico di Torino.

Two-bubblesolutions in the super-critical Bahri-Coron's problem

Abstract: has at least one solution when q < N+2 N−2 for any smooth bounded domain Ω. On the contrary, when q is critical or supercritical the existence of solutions to problem (1.2) depends strongly on the shape of the domainΩ. Indeed, if q ≥ N+2 N−2 Pohozaev’s identity [18] gives that problem (1.2) has no solution ifΩ is star-shaped. On the other hand, if q = N+2 N−2 , problem (1.2) has at least one solution when Ω is a symmetric annulus, see Kazdan-Warner [15], or when Ω has a “small hole”, see Coron [9]. In a remarkable work [3], Bahri and Coron generalize the previous results, by proving that if q = N+2 N−2 and if some homology group of Ω with coefficients in Z2 is nontrivial, then problem (1.2) has a solution.

Effect of Experimental Muscle Pain on Motor Unit Firing Rate and Conduction Velocity

Abstract: The aim of this human study was to investigate the relationship between experimentally induced muscle pain intensity (i.e., amount of nociceptive activity) and motor unit (MU) firing decrease and M...

Strategies to control the particle size distribution of poly-ε-caprolactone nanoparticles for pharmaceutical applications

Abstract: In this work turbulent precipitation through solvent displacement for the production of poly-epsilon-caprolactone (PCL) nanoparticles is investigated; two different PCL molecular weights have been employed, using acetone and water as solvent and anti-solvent, respectively. The main important thermodynamic and kinetic parameters, such as solubility and interfacial tension of PCL in water-acetone mixtures, are determined and the effect of the process operating conditions on the final particle size distribution is also investigated. Particles produced under different conditions into a Confined Impinging Jets Reactor (CIJR) were characterized by Dynamic Light Scattering, Zeta potential measurements and Scanning Electronic Microscopy. Results clearly show the strong effect of mixing on the particle size distribution and how mixing must be controlled in order to obtain a product with particular characteristics. Eventually the measured thermodynamic and kinetic parameters are used to interpret the obtained experimental data.

The Cost of the "S" in HTTPS

Abstract: Increased user concern over security and privacy on the Internet has led to widespread adoption of HTTPS, the secure version of HTTP. HTTPS authenticates the communicating end points and provides confidentiality for the ensuing communication. However, as with any security solution, it does not come for free. HTTPS may introduce overhead in terms of infrastructure costs, communication latency, data usage, and energy consumption. Moreover, given the opaqueness of the encrypted communication, any in-network value added services requiring visibility into application layer content, such as caches and virus scanners, become ineffective. This paper attempts to shed some light on these costs. First, taking advantage of datasets collected from large ISPs, we examine the accelerating adoption of HTTPS over the last three years. Second, we quantify the direct and indirect costs of this evolution. Our results show that, indeed, security does not come for free. This work thus aims to stimulate discussion on technologies that can mitigate the costs of HTTPS while still protecting the user's privacy.