Search results for " Green"

Strategia ochrony dendroflory i zieleni miejskiej miasta Opola

2006

Aree verdi storiche e alberi monumentali: stimolo per un'efficace pianificazione delle infrastrutture verdi

2020

This study is based on the assumption that existing urban green areas can play a significant role in giving a boost to the effective development of linear infrastructures when conceived as green-blue corridors, capable to significantly affect in the production of the ecosystem services within the urban environment. The first phase of analysis, necessary to frame the case study, identified in the city of Palermo (Italy), the research focused on the ecological and social aspects of urban green, investigating its current values and potentials. The existing private and public parks and gardens have been combined with major areas of ecological relevance, whereas the monumental trees connect gree…

Towards a new protocol for field measurements of greenhouse gases from wastewater treatment plant

2016

Emissions into the atmosphere of greenhouse gases (GHGs), i.e., carbon dioxide, methane and nitrous oxide from wastewater treatment plants are of increasing concern in the water industry. In order to produce useful and comparable information for monitoring, assessing and reporting GHG emissions from wastewater treatment plants, there is a crescent need for a general accepted methodology. This paper aims at proposing the first protocol for monitoring and accounting GHG emissions from wastewater treatment plants taking into account both direct and internal indirect emissions focusing on sections known to be major responsible of GHG emissions i.e. oxidation tanks and sludge digestion. The main…

Analytical results for 2-D non-rectilinear waveguides based on a Green's function

2008

We consider the problem of wave propagation for a 2-D rectilinear optical waveguide which presents some perturbation. We construct a mathematical framework to study such a problem and prove the existence of a solution for the case of small imperfections. Our results are based on the knowledge of a Green's function for the rectilinear case.

Plant essential oils in controlling fungal colonization on wooden substrate

2021

In order to control fungal colonization and the related deterioration process of cultural objects, several chemical compounds are actually utilised. These products generally are toxic, not biodegradable and persisting for long time in the environment, also acting on not-targeted biological systems. In this study, specifically to wooden cultural object, Origanum vulgare L. and Thymus vulgaris L. essential oils are proposed as green biocides to contrast the development of Penicillium chrysogenum, Aspergillus flavus and Aspergillus niger fungal species. The aim is replacing toxic products with natural molecules, proposing alternative methodologies supporting the using of non-toxic novel compou…