Search results for "cienza"

KLUM@GTAP: SPATIALLY EXPLICIT, BIOPHYSICAL LAND USE IN A COMPUTABLE GENERAL EQUILIBRIUM MODEL

2009

BENEFICI CLINICI E IMPATTO SULLA SOPRAVVIVENZA A LUNGO TERMINE DELLA TERAPIA DI RESINCRONIZZAZIONE CARDIACA

2009

Dynamic analysis of prestressed cables with uncertain pretension

2002

This paper deals with finite element dynamic analysis of prestressed cables with uncertain pretension subjected to deterministic excitations. The theoretical model addressed for cable modeling is a two-dimensional finite-strain beam theory, which allows us to eliminate any restriction on the magnitude of displacements and rotations. The dynamic problem is formulated by referring the motion to the inertial frame, which leads to a simple uncoupled quadratic form for the kinetic energy. The effect of the externally applied stochastic pretension is approximately described by means of an uncertain 'axial' component of stress resultant, which is assumed constant along the cable in its dead load c…

Strutture continue a parametri incerti

2005

Obiettivo del presente lavoro è la valutazione della risposta di strutture continue in campo elastico lineare che presentano incertezze nei parametri geometrici e/o meccanici

Efficacy of poly(lactic acid)/carvacrol electrospun membranes against Staphylococcus aureus and Candida albicans in single and mixed cultures

2018

Carvacrol (CAR) is one of the most promising essential oil components with antimicrobial activity. New technologies aimed to incorporate this active molecule into carrier matrix to improve the stability and prolong the biological activity. The goal of this study was to investigate the feasibility of incorporating CAR into electrospun membranes of poly(lactic acid) (PLA) for potential applications as active antimicrobial system. To this end, PLA membranes containing homogeneously dispersed CAR were successfully prepared and a series of systematic tests including morpho-mechanical properties, in vitro release rate, and antimicrobial/antibiofilm activities against Staphylococcus aureus and Can…

Il principio di gerarchia delle resistenze capacity design

2012

The devastating effects generated by earthquakes occurred in different parts of the world have attract at a major interest in Earthquake Engineering. This branch of Structural Engineering studies the response and capacity of structural systems subjected to seismic actions, and develops design and prediction methods aimed at achieving adequate safety standards in presence of seismic events. A strategy used for the seismic prediction of RC structures, based on the capacity design of structural elements is the "hierarchy of strengths" (HS) principle. The paper shows how a proper use of the HS capacity design method can be included within the seismic design of RC structures achieving high level…

Infrastrutture: Efficienza, accessibilità ed attrattività come elementi del capitale territoriale

2013

Per cogliere l’influenza delle infrastrutture sulla competitività di un territorio, esse devono essere esaminate non soltanto rispetto alla componente “fisica” e trasportistica, ma anche rispetto alla componente qualitativa e sociale. Lo scopo del presente lavoro è di analizzare tale componente ed evidenziarne gli elementi che maggiormente influenzano la dotazione di Capitale Territoriale (Camagni, 2008). In particolare riteniamo che effetti di agglomerazione/dispersione e di variazione del capitale territoriale emergono con l’osservazione delle caratteristiche delle infrastrutture che coniugano una dimensione geografica e spaziale negli aspetti della reticolarità, dell’accessibilità e dell…

Instabilities Effects in Thin Film Solar Cells: Reversible Ageing, Performance Recovery and Improvement by Electrical Stresses

Polysaccharide nanocrystals as fillers for PLA based nanocomposites

2016

The development of green nanocomposites based on biopolymers and bio-based nanofillers has attracted over the recent years the attention of academic and industrial research. Indeed, these nanocomposites could replace some oil-derived polymers and thus helping to overcome environmental problems. In this regard, PLA as matrix and polysaccharide nanocrystals as fillers are the most promising components to obtain high-performance green bio-nanocomposites suitable for different applications, particularly for packaging and biomedical applications. Indeed, at present, due to its processability, mechanical and biological properties, as well as its commercial availability, poly(lactic acid) (PLA) po…

Effect of Sheep Wool Fibers on Thermal Insulation and Mechanical Properties of Cement-Based Composites

2019

The use of sheep wool as a filler of cement in order to produce mortar or plaster involves several advantages for environment and energy. Moreover, it is considered as a waste and, therefore, its use is characterized by low cost. The aim of this paper is to evaluate the influence of wool fibers on thermal conductivity and mechanical properties of cement. The samples were prepared using wool fibers, obtained from a breed of Sicilian sheep, with three different lengths (i.e., 1, 6, and 20 mm). Furthermore, in order to evaluate the influence of fiber content, the samples were prepared by varying the fiber weight fraction. The thermal conductivity of the samples was analyzed by using a heat flo…