Search results for "Pollution"
showing 10 items of 2765 documents
Diffuse and concentrated pollution control at watershed-scale: an Italian case study
2008
Point and non-point pollution assessment for a receiving water body quality management
2008
La denitrificazione biologica delle acque di falda: studio di tre differenti substrati organici
2015
L’uso massiccio di fertilizzanti contenenti azoto è causa dei fenomeni di inquinamento diffuso delle acque di falda. In tale ottica, notevole interesse hanno recentemente riscosso i trattamenti biologici in situ, in grado di promuovere la denitrificazione delle acque di falda mediante la realizzazione di interventi che coniugano efficacia di rimozione e costi relativamente contenuti. Nella nota si riportano i risultati di una ricerca sul processo di denitrificazione eterotrofa, condotta utilizzando come fonte di carbonio tre materiali convenzionalmente considerati di scarto: corteccia di pino, sughero e sansa di olive. Lo studio è stato suddiviso in due fasi: la prima condotta in modalità b…
Predicting Real-Time Roadside CO and NO2 Concentrations using Neural Networks
2008
An analysis System based on Morphological Fuzzy Filters: Application to the study of Marine Pollution Due to Hydrocarbons
2010
Further Experimental Investigation of Motored Engine Friction Using Shunt Pipe Method
2019
Mechanical friction is a significant power dissipater in the internal combustion engine. In the effort of designing more efficient and less pollutant engines, friction reduction is certainly on the agenda to be investigated. Such investigation cannot be possible without an accurate measurement of the same quantity. This publication regards a continued study on the mechanical friction determination in an internal combustion engine using the Pressurised Motoring Method. In this work, the friction mean effective pressure of a four-cylinder compression ignition engine was investigated with varying engine speed and manifold pressurisation, using a dedicated high precision sensor for the correct …
Assessment of indoor illuminance and study on best photosensors' position for design and commissioning of Daylight Linked Control Systems. A new meth…
2018
Abstract Artificial lighting systems have to ensure appropriate illuminance with high energy efficiency according to best design practice and technical standards. These aims can be tackled, by incorporating a Daylight linked control system. However, the system behaviour is strongly influenced by several factors and, in particular, by the sensors' position. Indeed, very often the illuminance on work-plane is not fully correlated with illuminance measured by the photo-sensor used to control the luminaires. This fact leads to wrong information for the Daylight linked control systems affecting its efficacy. The artificial intelligence of Neural Networks can be exploited to provide a method for …
A simplified method for the indirect evaluation of the “embodied pollution” of natural stones (marble) working chain to be applied for achieving the …
2022
The constant push toward higher energy and environmental quality buildings makes the acquisition of excellence marks for products and materials, of which the building envelope is constituted, increasingly urgent. The recent European (EU) Commission Decision 2021/476 is applicable to marble used in construction. It sets out criteria that companies producing marble have to accomplish to obtain the EU Ecolabel brand. Unfortunately, some criteria such as, for example, those that refer to the application of the Environmental Management System, ISO 14001 and EMAS certifications, or those that concern the ISO 14067 as well as the Product Environment Footprint procedure, are difficult to apply for …
Forecasting noise levels by means of neural networks for assessing urban traffic policies
2005
Within the assessment of the sustainability of plans and actions concerning the built environment, the transportation sector plays an increasing role, due to its importance in the economic and social life of countries. As that, the analysis of the sustainability concerning the transportation sector is now often embodied into the so called Strategic Environmental Analyses (SEA), that should provide local administrators with easy criteria for ranking the environmental suitability of designing policies, and that would seem to encounter the needed features for a correct evaluation of the urban masterplan. The urban noise forecast is very useful for local administrations, which have presently to…
The recent change in the Italian policies for photovoltaics: Effects on the payback period and levelized cost of electricity of grid-connected photov…
2015
Abstract This paper provides an economic analysis of the investment in grid-connected PV (photovoltaic) systems installed on the rooftops of buildings located in densely urbanised contexts. The analysis was applied to some case studies that were selected as representative of the latitudes of the southern, central and northern Italy. The returns of the investment in PV systems were investigated with the aim of comparing the impact of the current PV policy, based on the tax credit scheme, with the FIT (feed-in tariff) scheme, in force until July 2013. The cash flows related to the disbursements and benefits during the lifetime of the investment were computed for each combination of orientatio…