Search results for " scienza"
showing 10 items of 1301 documents
An elastic-damage nonlocal interface model
2005
A nonlocal elastic damage interface model is proposed
Using Taguchi method for the optimization of processing variables to prepare porous scaffolds by combined melt mixing/particulate leaching
2017
Synthetic biopolymers have made significant inroads into the development of devices for tissue regeneration. In this context, a challenge is the achievement of appropriate properties mimicking the natural extracellular matrix by fabricating scaffolds presenting mechanical properties, specific surface, porosity and pore interconnection adequate for the final application. This study involved a systematic procedure based on Taguchi method for parameters optimization of melt mixing/particulate leaching combined processes aiming to enhance the performance of the scaffolds. In particular, it was evaluated the effect of time and temperature of melt mixing of the poly(lactic acid) matrix with two w…
One Belt One Road: Understanding China’s activism in contemporary world. Does the flap of a butterfly’s wings in China set off a tornado in Europe (U…
2018
The project of economic integration of the Countries of Eurasia, so called One Belt One Road (OBOR) or “the new silk belt road” initiative, on which President Xi Jinping is focusing to realize the great "Chinese Dream" of a strong and prosperous China, until now and notwithstanding a strong and widespread mediatic impact, is no more than a declared foreign policy strategy pursued by the Chinese Government to achieve two different sets of results. The first, and most important (as well as undervalued) is to close China’s internal development gap between coastal and inland regions, through the creation of a widely interconnected national logistic and industrial infrastructure which will serve…
L'APPORTO DELLA COMPARAZIONE NEL RAPPORTO TRA SCIENZA GIURIDICA ED ELABORAZIONE GIURISPRUDENZIALE
2011
The essay is aimed at demonstrating the extent to which comparative law, and the adoption of a comparative method, can play a clarifying role in the relationship between law as a science and law in action. The starting point is that any legal system should be appreciated as a whole without giving in to the temptation of describing it only by way of giving prevalence to one of its formants (legal doctrine, judicial decisions, legislation). These are only stand-points from which to observe the entire legal phenomenon. This method is here applied. In the first part of this paper the English common law is scrutinized with reference to the values and the defects inherent in its formation through…
Coalition building in the UN Security Council
2014
Political coalitions in the international system are still understudied in International Relations theory. This article claims that the formation of and variations in coalitions in the international system are affected by changes in their bargaining power and bargaining environment related to the global leadership cycle and by long-term organisational changes of the international political system. Identifying the Security Council as the institution in which states are more likely to keep their systemic preferences at the institutional level, the article studies the presence, formation and change of coalitions in the international system by testing variations in the behaviour of the Securit…
Complex analysis for the solution of torsion problems: a comparison among three methods
2009
An Innovative Ambient Identification Method
2020
Ambient modal identification, also known as Operational Modal Analysis (OMA), aims to identify the modal properties of a structure based on vibration data collected when the structure is under its operating conditions, i.e., no initial excitation or known artificial excitation. This procedure for testing and/or monitoring historic buildings, is particularly attractive for civil engineers concerned with the safety of complex historic structures. However, since the external force is not recorded, the identification methods have to be more sophisticated and based on stochastic mechanics. In this context, this contribution will introduce an innovative ambient identification method based on appl…
Numerical and Experimental Analysis of the Frictional Effects on 4ENF Delamination Tests Performed on Unidirectional CFRP
2015
Abstract Progressive delamination in composite materials under static or fatigue loading condition are, in many structures, one of the predominant cause of failure. In the paper, an accurate study of quasi-static delamination growth under mode II loading condition is conducted. Several experimental tests are performed on composite laminates consisting of unidirectional carbon/epoxy layers. Four-point end-notched flexure (4ENF) test is employed in order to characterize the mode II interlaminar fracture toughness. The R-curve is obtained by means of optical and numerical determination of crack tip position. The energy release rate and the crack length are calculated through experimental deter…
Microwave response properties of epoxy resin composites filled with graphitic fillers
2014
Composite materials based on epoxy resin filled with various kinds of graphite particles: exfoliated graphite (EG), natural graphite, and coarse, medium and fine artificial graphites have been prepared. The dielectric permittivity strongly increases with graphite particle size. This effect is related to the distance of the investigated filler concentrations to the composites' percolation threshold. Microwave experiments show that exfoliated graphite is, out of investigated graphite particles, the only one being a really effective additive for producing electromagnetic (EM) interference (EMI) shielding: 2 wt.% epoxy/EG is absolutely opaque to electromagnetic radiation at 30 GHz.