Search results for "31"
showing 10 items of 4401 documents
Dynamic reconfiguration systems for PV plant: Technical and economic analysis
2020
Solar plants suffer of partial shading and mismatch problems. Without considering the generation of hot spots and the resulting security issues, a monitoring system for the health of a PV plant should be useful to drive a dynamic reconfiguration system (DRS) to solve bottlenecks due to different panels’ shading. Over the years different DRS architectures have been proposed, but no suggestions about costs and benefits have been provided. Starting from technical subjects such as differences of the topologies driving the hardware complexity and number of components, this paper identifies the cost of DRS and its lifetime, and based on these issues it provides an economic analysis for a 6 kWp PV…
Experimental Investigation on the Performances of a Multilevel Inverter Using a Field Programmable Gate Array-Based Control System
2019
The Field Programmable Gate Array (FPGA) represents a valid solution for the design of control systems for inverters adopted in many industry applications, because of both its high flexibility of use and its high-performance with respect to other types of digital controllers. In this context, this paper presents an experimental investigation on the harmonic content of the voltages produced by a three-phase, five level cascaded H-Bridge Multilevel inverter with an FPGA-based control board, aiming also to evaluate the performance of the FPGA through the implementation of the main common modulation techniques and the comparison between simulation and experimental results. The control algorithm…
Onset of Convection in an Inclined Anisotropic Porous Layer with Internal Heat Generation
2019
The onset of convection in an inclined porous layer which is heated internally by a uniform distribution of heat sources is considered. We investigate the combined effects of inclination, anisotropy and internal heat generation on the linear instability of the basic parallel flow. When the Rayleigh number is sufficiently large, instability occurs and a convective motion is set up. It turns out that the preferred motion at convection onset depends quite strongly on the anisotropy ratio, &xi
Health and Social Care Educators’ Competence in Digital Collaborative Learning : A Cross-Sectional Survey
2020
The ongoing change from traditional pedagogy to digital collaborative learning requires a new mode of teaching, learning, and educators’ responsibilities. For competence in digitally mediated teaching, educators need understanding of how to provide appropriate digital environment to learn collectively and individually. The aim of this study was to describe and explore health and social care educators’ perceptions of their current level of competence in digital collaborative learning and identify distinct educators’ profiles. Data were collected via cross-sectional survey from educators in 21 universities of applied science and eight vocational colleges in Finland using an instrument coveri…
How Individual Coping, Mental Health, and Parental Behavior Are Related to Identity Development in Emerging Adults in Seven Countries
2020
So far, there is a dearth of research comparing identity processes across cultures and its contributing factors. In this study, the association of individual and family factors with identity processes was analyzed in 2,113 emerging adults ( M = 22.0 years; 66% female) from France, Germany, Greece, Peru, Pakistan, Poland, and Turkey. Exploration and commitment levels were highest in non-Western countries like Peru, Turkey, and Pakistan, whereas emerging adults in France scored lowest in exploration and commitment and reported highest levels in identity distress, internalizing/externalizing symptoms, and identity diffusion. Identity distress, coping with identity distress, parental behavior,…
European core curriculum in neurorehabilitation.
2017
Item does not contain fulltext To date, medical education lacks Europe-wide standards on neurorehabilitation. To address this, the European Federation of NeuroRehabilitation Societies (EFNR) here proposes a postgraduate neurorehabilitation training scheme. In particular, the European medical core curriculum in neurorehabilitation should include a two-year residency in a neurorehabilitation setting where trainees can gain practical experience. Furthermore, it should comprise six modules of classroom training organized as weekend seminars or summer/winter schools. In conclusion, after defining the European medical core curriculum in neurorehabilitation, the next activities of the EFNR will be…
Seernes opplevelse av nettbaserte gudstjenester
2021
Author's accepted manuscript. When the corona pandemic became a fact, many parishes within the Church of Norway chose to start video streaming of services as a substitute for gatherings in the church. This article is based on a survey done among viewers of these broadcasts and sheds light on how online worship services were received. The findings from the survey show that the viewers value recognizability and authenticity, but at the same time expect the service to be adapted to the medium since the situation of viewing on a screen is quite different from being in a church.
Europe’s War against COVID-19: A Map of Countries’ Disease Vulnerability Using Mortality Indicators
2020
Specific and older age-associated comorbidities increase mortality risk in severe forms of coronavirus disease (COVID-19). We matched COVID-19 comorbidities with causes of death in 28 EU countries for the total population and for the population above 65 years and applied a machine-learning-based tree clustering algorithm on shares of death for COVID-19 comorbidities and for influenza and on their growth rates between 2011 and 2016. We distributed EU countries in clusters and drew a map of the EU populations&rsquo
Raro caso di corpo estraneo tiroideo
2002
Per una critica dell’art. 319-quater c.p. Una terza via tra concussione e corruzione
2013
L’introduzione dell’art. 319-quater mira a risolvere i problemi storicamente po-sti dalla distinzione tra corruzione e concussione. Pur sorretta da uno spunto condivisibile, quella disposizione, per il modo in cui è concretamente concepita, finisce tuttavia per solle-vare un novero di questioni fors’anche superiore rispetto a quelle che contribuisce a risolve-re. Gli stessi problemi si sarebbero potuti assai più agevolmente risolvere, già in vigenza del precedente sistema, sol che si fosse accettato di superare il dogma della mutua esclusività di quelle due fattispecie.