Search results for "COPI"

Modèle global et paramétrable, pour la gestion des foules d'agents en animation comportementale

2011

The realism of crowd behavioral animation is based on one hand on a rendering of graphic scenes generated by the application, and on the other hand on the realism of the behavior. This is last point which is our object of study. The realism of crowds' behavior is essentially global (macroscopic realism). It must respect the required statistical characteristics of the crowd (density, dispersal, speed…) similar to those of a real crowd. The realism is also local (microscopic realism), i.e. agents should ideally behave like humans or human groups taken as reference, at least in the focus of the considered application. The aim of our research is to propose a generic model to perform crowd behav…

Study of acoustic properties and impact behavior of porous materials homogeneous type metal foams and inhomogeneous

2015

This work is concerned with the theoretical and experimental study of the acoustical properties of macroscopically homogenous and inhomogeneous porous media as well as their mechanical response to impacts. The model of Johnson - Champoux - Allard appeared adapted for the acoustical modeling. This model, associated with a recently developed approach involving the concept of parallel transfer matrices has lead to a new approach of macroscopically inhomogeneous porous materials based on “mixtures of materials”. Furthermore, a parametric study of the absorption coefficient as a function of porosity and frequency has been proposed. The maximums of absorption as well as the envelop of the absorpt…

Surface plasmon interference excited by tightly focused laser beams

2007

International audience; We show that interfering surface plasmon polaritons can be excited with a focused laser beam at normal incidence to a plane metal film. No protrusions or holes are needed in this excitation scheme. Depending on the axial position of the focus, the intensity distribution on the metal surface is either dominated by interferences between counterpropagating plasmons or by a two-lobe pattern characteristic of localized surface plasmon excitation. Our experiments can be accurately explained by use of the angular spectrum representation and provide a simple means for locally exciting standing surface plasmon polaritons.

Excitons in few-layer hexagonal boron nitride: Davydov splitting and surface localization

2018

Hexagonal boron nitride (hBN) has been attracting great attention because of its strong excitonic effects. Taking into account few-layer systems, we investigate theoretically the effects of the number of layers on quasiparticle energies, absorption spectra, and excitonic states, placing particular focus on the Davydov splitting of the lowest bound excitons. We describe how the inter-layer interaction as well as the variation in electronic screening as a function of layer number $N$ affects the electronic and optical properties. Using both \textit{ab initio} simulations and a tight-binding model for an effective Hamiltonian describing the excitons, we characterize in detail the symmetry of t…

Caratterizzazione chimico-fisica della denaturazione termica della b-Lattoglobulina, modulata da ioni metallici

2012

Kontrolloitu sopeutuminen : ortodoksinen siirtoväki sotien jälkeisessä Ylä-Savossa (1946-1959)

2010

Disregolazione affettiva, qualità degli stili di attaccamento e malattie somatiche: uno studio su campioni indipendenti,

2005

scopo generale dello studio è l'esplorazione della presenza di tratti alessitimici in tre gruppi indipendenti di pazienti affetti da malattia organica. viene sviluppata l'ipotesi secondo cui l'alessitimia sia correlata ad uno stile di attaccamento di tipo evitante.

Cancro e disregolazione affettiva: uno studio empirico su un gruppo di donne affette da neoplasia mammaria

2005

Scopo dello studio condotto su un gruppo di donne affette da neoplasia mammaria è quello di esplorare la presenza di tratti alessitimici e la relazione tra l'alessitimia, i meccanismi di difesa e le strategie di coping. l'alessitimia si pone come fattore di rischio aspecifico per lo sviluppo di neoplasie e correla positivamente con uno stile difensivo immaturo e stategie di coping disadattive

Positioning the principles of precision medicine in care pathways for allergic rhinitis and chronic rhinosinusitis – A EUFOREA-ARIA-EPOS-AIRWAYS IC…

2017

Precision medicine (PM) is increasingly recognized as the way forward for optimizing patient care. Introduced in the field of oncology, it is now considered of major interest in other medical domains like allergy and chronic airway diseases, which face an urgent need to improve the level of disease control, enhance patient satisfaction and increase effectiveness of preventive interventions. The combination of personalized care, prediction of treatment success, prevention of disease and patient participation in the elaboration of the treatment plan is expected to substantially improve the therapeutic approach for individuals suffering from chronic disabling conditions. Given the emerging dat…

La spettroscopia ad ablazione laser per analisi stratigrafiche: esempi di applicazioni per lo studio dei beni culturali

2011

La spettroscopia ad ablazione laser (LIBS), a differenza di altre tecniche d'indagine, permette di condurre analisi stratigrafiche anche direttamente sul campione tramite impulsi consecutivi sullo stesso punto. Le attività condotte hanno riguardato l'ottimizzazione dei parametri strumentali (laser energy, delay, exposition time) per verificare la possibilità di ottenere profili di profondità degli elementi chimici costituenti materiali di differente tipologia (bronzi archeologici, lapidei, materiali pittorici, etc.), valutando anche l'influenza delle variabili presenti (spessori, composizione, proprietà del plasma). Tale approccio metodologico, seppur micro-distruttivo, evita la necessità d…