Search results for "impact"
showing 10 items of 1703 documents
LIFE CYCLE ASSESSMENT EXPERIENCES FOR SOLAR HEATING AND COOLING SYSTEMS
2018
Solar heating and cooling systems can significantly contribute to the energy and climate European goals. A complete assessment of this contribution needs the analysis of these systems from a life-cycle perspective, in order to estimate the energy and environmental costs of their manufacturing and end-of-life, and to compare these costs with the benefits obtained during operation. A well-established methodology to fulfil this task is the Life Cycle Assessment (LCA). The paper describes some LCA experiences of solar heating and cooling systems, developed within the Task 53 “New generation solar cooling & heating systems (PV or solar thermally driven systems)” of the International Energy A…
Numerical methods for a nonlinear impact model: A comparative study with closed-form corrections
2011
A physically based impact model-already known and exploited in the field of sound synthesis-is studied using both analytical tools and numerical simulations. It is shown that the Hamiltonian of a physical system composed of a mass impacting on a wall can be expressed analytically as a function of the mass velocity during contact. Moreover, an efficient and accurate approximation for the mass outbound velocity is presented, which allows to estimate the Hamiltonian at the end of the contact. Analytical results are then compared to numerical simulations obtained by discretizing the system with several numerical methods. It is shown that, for some regions of the parameter space, the trajectorie…
Long-term socio-economic impact of COVID-19 on sport sector
2021
The nature of the Covid-19 pandemic’s induced economic crisis is unprecedented: beyond the repeated health and economic shocks, the long-term effects on human capital, productivity and behaviour may also be long-lasting. One of the sectors hit particularly severe by the impacts of Covid-19 is sport. The very existence and work of sport organisations, clubs, professional sport leagues, fitness centres, athletes, coaches, sport staff, sport volunteers and sport-related business, including sport event organisers and sport media, have been battling with staying afloat by cutting all unnecessary expenses and consolidating costs while also trying to maintain the community feel of bringing people …
Euclid preparation: XI. Mean redshift determination from galaxy redshift probabilities for cosmic shear tomography
2021
Ilbert, O., et al. (Euclid Collaboration)
Modelling urban stormwater impact mitigation by using bmps and storage tanks
2005
The continuous growth of urban areas and the increasing public awareness about environmental impact of stormwater raised high interest on quality impact on the receiving water bodies. Indeed, in the last decades, large efforts have been provided for improving urban drainage systems in order to mitigate environmental impacts. In the present paper, a simplified modelling approach has been developed in order to evaluate the mitigation efficiency of different BMP schemes including infiltration and storage facilities and both considering possible distributed controls and centralised structures. The main goals of the research are the simulation of BMP efficiency in different operational condition…
Dynamique fluvial, changement global et pression anthropique dans le bassin, le cours et le delta de l'Ébre
2017
Le fonctionnement des rivières du bassin de l’Èbre a subi d’importants changements depuis 1950. Il s’agit d’un processus rapide et très marqué, de simplification et de stabilisation sur le fleuve principal et sur ses principaux affluents pyrénéens. Ce processus s’est manifesté par des changements dans la morphologie fluviale, le développement de la végétation sur les lits, un rétrécissement de l’espace naturel fluvial et une incision des lits fluviaux. Les facteurs de ce processus sont le changement global dans le bassin, la construction de réservoirs d’eau et d’autres nombreuses pressions humaines directes, notamment d’extractions de graviers et de canalisations. Le delta de l’Èbre, actuel…
Gas geochemistry of shallow submarine vents in the Aegean sea (Greece)
2017
The Aegean area, which is geodynamically very active, is characterised by intense seismic activity, presence of active volcanic systems and anomalous geothermal gradients. Like other regions of intense geodynamic activity it is also characterized by extensive geogenic degassing. Gas manifestations are not only widespread on land but are also very frequent underwater. Many of these, as for example those of Milos and Santorini, are known since long time and have been previously studied although the targets were generally the hot waters or the sediments affected by the emissions (Smith and Cronan 1978, Dando et al. 1995, Price et al. 2013, Megalovassilis 2014).The present study aims at produci…
Performance-related fear experiences, coping and perceived functional impact on highly skilled athletes
2013
ABSTRACT Melina Puolamäki, 2013. Performance-related fear experiences, coping and perceived functional impact on highly skilled athletes. Master’s Thesis in Sport and Exercise Psychology. Department of Sport Science, University of Jyväskylä. 68p. Three types of experiences are distinguished in sport: emotional states (state-like), emotion patterns (trait-like), and meta-experiences or attitudes towards one’s experiences (Hanin, 2004). Most emotion research has traditionally focused on the study of anxiety and its impact on athletic performance. Although unpleasant emotions have been assumed harmful for performance, previous research on anxiety (Hanin, 2000) and anger (Ruiz & Hanin, 2011) ha…
Improving food offer in order to prevent and tackle undernutrition
2021
When a person shows a decline in appetite or loses weight, is essential to adapt his/her diet in order to fulfil the nutritionc needs and prevent undernutrition. Three axes must but considered and combined: enriching diet (increasing the content of essential nutrients in a meal without increasing! the volume to be ingested); adapting food texture to orc capacities (chewing, salivation, swallowing); optimizing food sensory characteristics by taking into account food habit and food preferences.
Economical evaluation of ecological benefits of the demand side management
2014
Environmental pollution and over-exploitation of non-renewable sources to find energy are current topics for the modern world that is now at having to deal with several issues such as the greenhouse effect, acid rain and climate change. In this study, the economical estimate of the savings in carbon dioxide obtained with a careful management of electrical loads is presented. Four particular scenarios are designed as case studies: Italy, France, United Kingdom and Germany. A comparison is presented with a similar study, made in 2007, when green energies were not yet very developed.