Search results for "Curve"
showing 10 items of 1693 documents
The Effect of Damage Functions on Urban Flood Damage Appraisal
2014
Flooding damage appraisal can been obtained by interpolating real damage data caused by historical flooding events or accounting the effects of a flood in terms of the depreciation of assets. Most often, the expected damage is evaluated by means of damage functions describing the relationship occurring between the damage and hydraulic characteristics of flood. The present paper aims to evaluate the uncertainty linked to the choice of the depth-damage function adopted in the flood damage analysis. Several possible depth-damage function formulations were selected in literature and applied to historical flooding events monitored in the "Centro Storico" catchment in Palermo (Italy). (C) 2013 Th…
Comparativa entre lentes intraoculares multifocales: TECNIS Symphony vs AcrySof PanOptix
2016
PROPOSITO: Evaluar el rendimiento visual de la LIOM TECNIS® Symfony y compararla con la LIOM AcrySof® IQ PanOptix™. MÉTODO: Treinta y ocho pacientes (68 ojos) se dividieron en dos grupos: dieciocho pacientes fueron asignados al grupo de Symfony y veinte pacientes al grupo de PanOptix. Los parámetros analizados fueron UDVA, UIVA, UNVA, CDVA, CDIVA, CDNVA, la SC y las curvas de desenfoque monocular ambas en condiciones fotópicas y en un rango de +3 a -5 D en pasos de 0.5 D junto con un cuestionario de calidad de vida. RESULTADOS: Las diferencias de UDVA, CDVA, UIVA, CDIVA no fueron estadísticamente significativas (test Mann-Whitney; p-valor>0.31). Sin embargo, la PanOptix obtuvo mejores resul…
Synthesis and self-assembly of a PEGylated-graphene aerogel
2016
Abstract In the frame of this work, we present, for the first time, the synthesis and self-assembly of an aerogel built by graphene oxide-polyethylene glycol. The synthetic route involves at first the coupling of GO with an amino-terminated polyethylene glycol sample by carbodiimide in aqueous environment, and the subsequent conversion of the hydrogel achieved into an aerogel via freeze-drying. The 3D PEGylated graphene-based aerogel, characterized by spectroscopic, morphological, structural and mechanical analyses, displays an ultralight and highly porous (99.7%) network and possesses high mechanical properties together with a good biocompatibility.
Prove Sperimentali di Push-Out su Travi Reticolari Miste
2009
Nel presente lavoro sono descritte le prove di push-out realizzate sino ad oggi in tre diverse sedi Universitarie (Università del Salento, Università di Palermo, Università di Ferrara), operanti nel Gruppo di Ricerca finalizzato allo studio delle travi Prefabbricate Reticolari Miste, in collaborazione con le aziende di ASSOPREM. Dette prove hanno l’obiettivo di analizzare il comportamento all’interfaccia fra gli elementi resistenti nelle travi suddette, realizzate con traliccio prefabbricato e getto in opera di calcestruzzo. L’indagine condotta, sebbene ancora insufficiente a condurre a risultati di validità generale, evidenzia come al variare di alcuni parametri significativi si rilevi un …
Development of accelerometer-based light to vigorous physical activity in fitness profiles of school-aged children.
2021
This study examined the developmental trajectories of light (LPA) and moderate-to-vigorous physical activity (MVPA) in fitness profiles derived from motor competence, perceived motor competence, health-related fitness, and MVPA behaviour. Locomotor, stability, and object-control skills, muscular and cardiovascular fitness, and physical activity were assessed in 510 (girls 285, boys 225) Finnish school-aged children (Mage = 11.26 ± .33 years) over three years. Physical activity was measured using hip-mounted accelerometers. Fitness profiles were identified using latent profile analysis and the development of physical activity levels across four assessments was analysed with latent growth cur…
Learning Curve in Surgical Treatment of Odontoid Fixation for a Series of Type II C2 Fractures
2019
The craniovertebral junction (CVJ) is a complex anatomical area upon which most of the motion of the upper cervical spine depends [1]. Because of its unique range of motion, the CVJ is subject to several types of traumatic injury; it has been shown that odontoid fractures are the most common ones in the general population and are the most common isolated spinal fractures [2]. Accounting for up to 18% of all cervical fractures, odontoid fractures are the most common ones in elderly patients [3], in whom they account for up to 60% of spinal cord injuries [4].
Generalized curved beam on elastic foundation solved by Transfer Matrix Method
2011
A solution of space curved bars with generalized Winkler soil found by means of Transfer Matrix Method is presented. Distributed, concentrated loads and imposed strains are applied to the beam as well as rigid or elastic boundaries are considered at the ends. The proposed approach gives the analytical and numerical exact solution for circular beams and rings, loaded in the plane or perpendicular to it. A well-approximated solution can be found for general space curved bars with complex geometry. Elastic foundation is characterized by six parameters of stiffness in different directions: three for rectilinear springs and three for rotational springs. The beam has axial, shear, bending and tor…
Iespēju vienlīdzība un ekonomikas izaugsme: gadījumu izpēte Eiropā
2021
Attīstoties filozofijai, sociālo zinātņu teorijai un ekonomikai, rezultātu vienlīdzību nomainīja iespēju vienlīdzība uzmanības centrā. Kaut arī Kuzņeca līkne nav dzelzs likums, nav pintes, lai to pārbaudītu, tā tomēr mums dod zināmu informāciju, kura atspoguļo to, cik " veselīga " ir mūsu attīstība. Šī maģistra darba mērķis ir izpētīt ekonomiskās izaugsmes ietekmi no iespēju egalitārisma viedokļa. Šī darba galvenā hipotēze ir sekojoša: “Ekonomiskā izaugsme nelabvēlīgi ietekmē iespēju vienlīdzību attīstītajās valstīs noteiktā periodā.” Runājot par iespēju vienlīdzības novērtējumu, šajā rakstā ir izmantots Iespēju indeksa modelis. IKP uz vienu iedzīvotāju tiek uzskatīts par mainīgo, lai ats…
The Euler characteristics of $mathcal H_g,n$
2007
In this short note, we compute the orbifold and the ordinary Euler characteristic of Hg,n, the moduli space of pointed hyper- elliptic curves. As a by-product, we obtain an identity involving hypergeometric functions.
Euler Characteristics of Moduli Spaces of Curves
2005
Let ${mathcal M}_g^n$ be the moduli space of n-pointed Riemann surfaces of genus g. Denote by ${\bar {\mathcal M}}_g^n$ the Deligne-Mumford compactification of ${mathcal M}_g^n$. In the present paper, we calculate the orbifold and the ordinary Euler characteristic of ${\bar {\mathcal M}}_g^n$ for any g and n such that n>2-2g.