Search results for "Miss"

Inter-crystal scatter in positron emission tomography: Identification techniques and effects on reconstructed images for AX-PET demonstrator

2012

La PET es una técnica de imagen en medicina nuclear que permite la visualización in-vivo y en 3D de procesos funcionales en seres vivos. Un escáner PET mide los rayos gamma producidos al aniquilarse un positrón, el cual es emitido por un radioisótopo inyectado al paciente. La eficiencia del sistema es una característica crucial de los escáneres PET de alta resolución dedicados a la imagen del cerebro o de animales pequeños con el fin de obtener una imagen más fiel o de reducir la actividad del radiotrazador, y por consiguiente, la dosis inyectada al paciente. El objetivo de este trabajo de investigación es mejorar la eficiencia y calidad de imagen de un prototipo de escáner PET axial (AX-PE…

Akillesjännekipupotilaiden pohjelihasharjoituksen aikainen aivoaktivaatio ja kuntoutusjakson vaikutus aktivaatioon

2011

Flink, Riina 2011. Akillesjännekipupotilaiden pohjelihasharjoituksen aikainen aivoakti-vaatio ja kuntoutusjakson vaikutus aktivaatioon. Liikuntabiologian laitos. Jyväskylän Yliopisto. Biomekaniikan Pro Gradu – tutkielma, 88s. Nivelien, alaselän ja akillesjänteiden kiputilat ovat nykyään hyvin yleisiä. Kuitenkaan kroonisen kivun hoitokeinot eivät ole yhtä kehittyneitä kuin akuutin kivun hoitokeinot. Tähän osasyynä on tietämättömyys kroonisen kivun vaikutuksista elimistöön. Etenkin kroonisen kivun vaikutukses-ta tahdonalaiseen liikkeeseen on hyvin vähän tietoa. Tämän tutkimuksen tarkoituksena olikin vertailla kroonisesta akillesjännekiputilasta kärsivien ja kontrollihenkilöiden aivoaktivaatio…

An Innovative Coupling Solution for Power Line Communication in MV Electrical Networks

2019

One of the main problems in the diffusion of power line communication (PLC) in medium voltage (MV) networks is the need of a dedicated PLC coupler to be installed all over the network. To avoid this problem, the authors have studied, prototyped and patented an innovative PLC coupling solution which uses electrical elements embedded in most of the switchgears already installed in MV networks, i.e. the capacitive dividers of the voltage detecting systems (VDS). The new solution prototype is described in this paper, highlighting the advantages in terms of a significant reduction of both direct costs of equipment and infrastructures and indirect costs of installation and service interruption. T…

Power Line Communication in Medium Voltage Systems: Characterization of MV Cables

2008

The aim of this paper is to illustrate the development of a theoretical and experimental study on the characterization of medium voltage (MV) cables in the frequency range 25-200 kHz. Two transmission line configurations, line-ground and line-line, were considered in order to evaluate the main parameters, such as the characteristic impedance and the attenuation constant alpha. A simplified model of the line-ground configuration is proposed which allows one to evaluate the characteristic impedance and the attenuation constant by means of geometrical dimensions. The model was verified by experimental measurements on commonly used MV cables, RG7H1R, with an aluminium core of different sections…

Consequential life cycle assessment of the Italian power system

2022

Energy production and consumption contribute to 76% of the European greenhouse gas (GHG) emissions in 2018, and 90% of global GHG emissions with land use, land use change and forestation (LULUCF) in the same year. By applying energy efficiency (EE) and renewable energy (RE) technologies, the GHG emission intensity of the energy sector reduced by 1.3% in 2018 compared to the previous year. The current climate change policy aims at decarbonization, sustainable environment, economic prosperity and social equity. It requires the deep decarbonisation of the economies, meaning that the energy and power systems as well as other emission intensive sectors need to transform into zero-emission ones. …

Design of a Hybrid Electric Power-Split Transmission for Braking Energy Recovery in a Drilling Rig

2022

Despite the promising potential of the hybrid electric power-split layout, its broader market penetration is prevented by the large number of feasible solutions and the constructive complexity, which overcomplicate the design process. Moreover, due to the lack of relevant literature references, the power-split transmissions design is even more difficult if concerning applications outside the automotive and agricultural sectors. In this paper, a general parametric model already available in the literature to design a single-mode power-split transmission with up to two planetary gear sets and six ordinary gear sets was applied to hybridize an oil drilling rig to recover energy braking during …

La médiatisation du culinaire

2010

coordination du dossier : Jean-Jacques Boutaud et Véronique Madelon; International audience; Ce dossier se penche sur la rencontre entre l'univers des médias et celui du culinaire. Qu'est-ce qui justifie cette rencontre ? Le culinaire est à prendre dans le sens généralisant de ce qui a trait à la cuisine. Terme polysémique, la cuisine est tout à la fois rabattue sur un lieu, des pratiques, des aliments, des styles et des cultures. De sorte que si le goût, comme sensation à la fois élémentaire et complexe, relève de l'indicible et contrarie la communication, l'univers culinaire se prête à la multiplication des angles, des éclairages. Mais comment expliquer, alors que la littérature culinaire…

Attività extralavorativa durante la malattia: obblighi del lavoratore e contestazione disciplinare

2021

Il contributo analizza una recente pronuncia della Suprema Corte. La sentenza in esame affronta la questione dello svolgimento di attività lavorativa presso terzi da parte del dipendente assente per malattia e si allinea al consolidato orientamento secondo il quale, pur non sussistendo un divieto assoluto di effettuare altra attività durante il periodo di sospensione del rapporto di lavoro, è legittimo il recesso del datore di lavoro quando questa configuri la violazione degli specifici obblighi contrattuali di diligenza e fedeltà, nonché dei doveri generali di correttezza e buona fede. The note analyses a recent judgment of the Supreme Court of Cassation. The decision deals with the work d…

Sosiaalityön neljäs käänne : asiantuntijuuden mahdollisuudet vahvan hyvinvointivaltion jälkeen

1998

Modal Consequence Relations Extending S4.3: An Application of Projective Unification

2016

We characterize all finitary consequence relations over $\mathbf{S4.3}$ , both syntactically, by exhibiting so-called (admissible) passive rules that extend the given logic, and semantically, by providing suitable strongly adequate classes of algebras. This is achieved by applying an earlier result stating that a modal logic $L$ extending $\mathbf{S4}$ has projective unification if and only if $L$ contains $\mathbf{S4.3}$ . In particular, we show that these consequence relations enjoy the strong finite model property, and are finitely based. In this way, we extend the known results by Bull and Fine, from logics, to consequence relations. We also show that the lattice of consequence relation…