Search results for "Project"

The spatial evaluation of the radiative human body heat exchanges: An effective contribution for limiting energy consumption and achieving better ind…

2018

Abstract Radiative heat exchanges inside buildings remarkably affect the thermal balance of the human body in confined spaces and the related thermal comfort sensations of people. The mean radiant temperature is an important component of this balance. Unfortunately, it is usually computed by means of too simplified relationships, which significantly influence the comfort evaluations. Such simplified approaches are also accountable for a less effective design of HVAC systems which, in turn, could result in high energy consumption in the climatization of buildings. However, an accurate evaluation of the mean radiant temperature, especially when high intensity sources are present in a given in…

Algorithms for the calculation of the projected area factors of seated and standing persons

1991

Moderate thermal environments, other than being affected by the mutual radiative heat exchange at low frequency among the internal surfaces, are often characterized by the presence of high intensity sources, that is, radiant sources showing a small area, a high emission temperature and a strongly directional beam. The sun's direct radiation can be considered to be among these radiant sources. In these cases, the computation of the mean radiant temperature and, consequently, the evaluation of the thermal comfort conditions, require knowledge of the “project area factor”, fp, of the subject. Moreover, the fp parameters are also applicable to derivation of the shape factors between subjects an…

Projectes socials

2021

Els materials han sigut revisats pel Servei de Política Lingüística Els materials recopilen els continguts teòrics de l'assignatura de Projectes socials del Tercer curs del Grau en Treball Social de la Universitat de València

From matrix clause to discourse marker: the grammaticalization of Hauptsache

2021

[EN] This paper has a double purpose. On the one hand, it intends to prove the existence of a discourse marker (DM) Hauptsache. This element preserves the core conceptual meaning of the homonymous noun, but differs from it with regard to its morphosyntactic and semantic features as well as to its discourse-organizing, information structuring, and modal functions. On the other hand, the emergence of Hauptsache as a discourse particle is explained on the grounds of a grammaticalization process similar to the ones described for the prototypical German DMs. Evidence drawn from a corpus of German and Austrian parliamentary protocols will show in which ways the six fundamental processes implied i…

Criteri di discretizzazione e di proiezione nel pensiero post-rinascimentale

2008

I metodi di rappresentazione descrivono le strutture di pensiero. E' ipotizzabile che nuovi sistemi di rappresentazione, quali gli schermi curvi, possano influenzare un nuovo modo di pensare e disegnare lo spazio, superando lo schema rinascimentale, che sottende, ancora oggi gli attuali sistemi di proiezione.

New preparation of ceramic coatings by low-pressure plasma spray

2018

As an advanced thermal spray technology, low-pressure plasma spray (LPPS) allows obtaining high-quality coatings and can bridge the thickness gap between conventional thermal spray technologies and standard thin film processes. Moreover, LPPS permits to build uniform coatings with various microstructures; deposition takes place not only from liquid splats but also from nano-sized clusters as well as from the vapor phase depending on operational conditions. In order to further improve and develop the LPPS process, this research aims to combine it with the emerging suspension plasma spray and reactive plasma spray processes. It was expected to both provide two novel integrated processes and a…

An Efficient Numerical Method for Time Domain Computational Electromagnetic Simulation

2018

In this paper an efficient numerical method in approximating the electric and magnetic fields is provided. The method is based on an implicit leapfrog arrangement in time and without mesh in space. Moreover, a projection scheme is introduced in order to improve the accuracy of the proposed approach and applied into the computational electromagnetic (CEM) framework. The PDEs governing the process are solved and some numerical results are reported to validate the numerical process.

Unirationality of Hurwitz spaces of coverings of degree <= 5

2011

Let $Y$ be a smooth, projective curve of genus $g\geq 1$ over the complex numbers. Let $H^0_{d,A}(Y)$ be the Hurwitz space which parametrizes coverings $p:X \to Y$ of degree $d$, simply branched in $n=2e$ points, with monodromy group equal to $S_d$, and $det(p_{*}O_X/O_Y)$ isomorphic to a fixed line bundle $A^{-1}$ of degree $-e$. We prove that, when $d=3, 4$ or $5$ and $n$ is sufficiently large (precise bounds are given), these Hurwitz spaces are unirational. If in addition $(e,2)=1$ (when $d=3$), $(e,6)=1$ (when $d=4$) and $(e,10)=1$ (when $d=5$), then these Hurwitz spaces are rational.

Correction to ?partial spreads in finite projective spaces and partial designs?

1976

groups acting on the line and the circle with at most N fixed points

2022

A classical theme in dynamical systems is that the first fundamental information comes from the understanding of periodic orbits. When studying group actions, this means that we want to understand the fixed points of elements of the group, and a natural question that emerges from that is: Which groups of homeomorphisms can act on a 1-manifold having all non-trivial elements with at most N fixed points? Our main objective in this work is to approach that question and understand what properties can such dynamical hypothesis induces to the group.For the case N=0, a classical result from O. Hölder implies that such group of homeomorphisms acting on the line is always semi-conjugate to a subgrou…