Search results for " Air"

Recent progress in metal-organic frameworks (MOFs) for CO2 capture at different pressures

2022

Global climate change ensued by the rise in atmospheric CO2 levels is one of the greatest challenges our planet is facing today. This worldwide distress demands technologies that can contribute to our society toward “negative carbon emissions”. Carbon capture and storage (CCS) technologies are in in important role for capturing CO2 from existing emission sources, such as industrial and energy production point sources, before new more prominent modifications to the energy infrastructure can be implemented. Recently, alongside point source capture, direct air capture (DAC) processes have emerged as highly sought-after technologies that are able to capture CO2 from the ambient air. Alongside t…

Bel-Air, Sénas (Bouches-du-Rhône) : a Late Neolithic open-air settlement site on the eastern foot-slopes of the Massif des Alpilles. Preliminary resu…

2014

This article is the first presentation of the excavation results following the developer-led archaeological project carried out between July and August 2012 at the site of Bel-Air, Sénas, Bouches-du-Rhône. Our current understanding of the diverse archaeological remains show that a densely occupied settlement existed within a relatively short-lived period during the second phase of the Late Neolithic in Provence, between 2880 and 2490 BC. The occupation is characterised by several phases of activity, which are at this stage of research, difficult to refine, but all of them being associated with the Couronnien group.

Spunti critici sull’aggiornamento della normativa europea in tema di qualità dell’aria

2022

This paper aims at presenting an argument in favour of the need for a prompt update of the European legislation on air quality, by taking its cue from the current situation in Italy. The paper starts by providing a definition of outdoor air pollution and by referring to the most influential Italian scientific studies on the main health risks connected. The perspective then shifts to the analysis of the relevant legislation at both European and national level in an attempt to systematically recompose the complex framework of plans and regulations adopted for the containment and prevention of outdoor pollution. In this framework, the analysis of the three infringement procedures opened agains…

Role of volatile and contact pheromones in the mating behaviour of Bagrada hilaris (Heteroptera: Pentatomidae)

2008

Volatiles and contact pheromones involved in the mating behaviour of the Painted bug, Bagrada hilaris Burmeister (Het- eroptera: Pentatomidae), were investigated in behavioural and chemical experiments. Vertical open Y-shaped olfactometer bioassays showed that odour from males attract females but not males, while that from females did not attract either gender. Adult females were also attracted by hexane extracts of volatile compounds collected from males. In open arena bioassays, males displayed the characteristic steps of courtship behaviour in the presence of virgin females. Such courtship behaviour was displayed in the presence of females killed by freezing, but not in the presence of f…

The Hybrid Airline Model. Generating Quality for Passengers

2017

This research aims to investigate the different strategies adopted by the airline companies in adapting to the ongoing changes while developing products and services for passengers in order to increase their yield, load factor and passenger satisfaction. Finding a balance between costs and services quality in the airline industry is a crucial task for every airline wanting to gain a competitive advantage on the market. Also, the rise of the hybrid business operating model has brought up many challenges for airlines as the line between legacy carriers and low-cost carriers is getting thinner in terms of costs and innovative ideas to create a superior product for the passengers.

Sistemas híbridos orgánicos-inorgánicos en films de Langmuir-Blodgett

2002

ÉCe travail porte sur la formation et la caractérisation de nouveaux systèmes organiques-inorganiques par l'utilisation de films de Langmuir et de la technique de Langmuir-Blodgett. Plusieurs voies ont ainsi été explorées afin d'obtenir des films minces hybrides aux propriétés multiples, en particulier magnétiques. L'utilisation de l'interaction entre monocouches cationiques et des anions présents en sous-phase a ainsi permis l'organisation de différents polyanions inorganiques en structure lamellaire. Cette stratégie a ensuite été généralisée au cas de colloïdes de Bleu de Prusse, composés bimétalliques étendus. Une large étude (de la préparation à la caractérisation) a été consacrée à ces…

DESIGN AND DEVELOPMENT OF A PILOT PLANT FOR MICROALGAE CULTIVATION AND POST- TREATMENT IN SUPERCRITICAL WATER

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. …

Relationship between Multimorbidity and Quality of Life in a Primary Care Setting: The Mediating Role of Dyspnea

2022

Multimorbidity is known to impair Quality of Life (QoL) in patients in a primary setting. Poor QoL is associated with higher dyspnea perception. How multimorbidity and dyspnea perception are related to QoL needs clarification. The aim of the present study is to evaluate the mediating role of dyspnea perception in the relationship between multimorbidity and QoL in adults with and without airflow obstruction in a primary care setting. Seventeen general practitioners participated in the study: a total of 912 adult patients attending the practitioner’s surgery for a generic consultation completed a preliminary respiratory screening; 566 of them answered a respiratory questionnaire between…

Cinètiques i mecanismes de la degradació atmosfèrica d'alguns pesticides

2016

Els plaguicides són amplament emprats actualment tant en agricultura com en usos domèstics o en industria. Tot i aportar importants beneficis a la societat actual, tant en temes relacionats amb la salut com amb l’economia, el seu ús també implica un riscos que s’han de conèixer. Un cop s’aplica un plaguicida, aquest es distribuirà entre els distints compartiments mediambientals –sòl, aigua i atmosfera- segons les seues propietats físico-químiques i el mode d’aplicació. L’atmosfera és un important medi de transport i reserva per als plaguicides i els seus productes de degradació. A l’arribar a l’atmosfera, el plaguicida es distribuirà entre les distintes fases aquosa, gasosa o particulada se…