Search results for "House"

Phenology and Fruit Growth Dynamics of Mango (Mangifera indica L.) in Greenhouse and Open Air in Mediterranean Climate

2023

AbstractPhenological evolution of shoots and fruit growth of three mango varieties—Keitt, Osteen and Tommy Atkins—were monitored during two reproductive seasons, from full flowering to fruit harvest on trees cultivated in the open air and inside a greenhouse, in the island of Sicily—Italy. The aim of the study was to assess the behavior of mango trees subjected to summer high temperatures under a permanent plastic cover in the Mediterranean climate. Differences between open air and greenhouse emerged in the dates of first record of major phenological stages and in their duration, and in the fruit growth rates. Greenhouse cultivated trees showed a significant anticipation of flowering and ri…

Greenhouse climate control using wireless sensors

2008

First records on Thripobius semiluteus Boocek (Hymenoptera:Eulophida) in Sicily.

2001

SOIL FERTILITY, GREENHOUSE GAS EMISSIONS AND AGRONOMIC PERFORMANCE IN A VINEYARD WITH DIFFERENT SOIL MANAGEMENT IN A SEMIARID MEDITERRANEAN ENVIRONME…

2017

In the semiarid Mediterranean environment, vineyard soils are often characterised by intensive tillage and large supply of inorganic fertilizers. Those practices, coupled with the semiarid Mediterranean climate features (warm to hot, dry summers and mild, wet winters),speed up the mineralisation of soil organic matter (SOM) so that many lands have lost much fertility. To counteract SOM decline, the introduction of cover crops with or without nitrogen (N) fixing forage legumes, has become a management technique widely used. Indeed, cover crops besides increasing SOM and potentially mineralisable N, it can mitigate soil erosion in sloping vineyards. However, the competition risk for soil wate…

Electrophysiological and behavioural responses of the housefly to “sweet” volatiles of the flowers of Caralluma europaea (Guss.) N.E. Br.

2013

In sapromyiophilous plants, up to date, long range attraction of fly pollinators has been thoroughly investigated and attributed to ‘‘fetid’’ floral compounds, while the ‘‘sweet’’ floral scent fraction has not been spe- cifically investigated and its role has received little atten- tion. The aim of the present study was to verify if terpenoids, which are the main compounds of the floral bouquet of Caralluma europaea, play a role in the attrac- tion of its pollinator Musca domestica. Terpinolene, a- terpinene and linalool, described as the three main volatiles of the flowers of C. europaea, were evaluated in electro- physiological investigations and blends of these com- pounds as well as the…

Caves in the Belmonte Mezzagno area (PA).

2009

Greenhouse Gas Emissions from Membrane Bioreactors

2017

Nowadays, it is widely accepted that wastewater treatment plants (WWTPs) are significant sources of greenhouse gas (GHG) emission, contributing to the anthropogenic sources. Among the GHG emitted from WWTPs, nitrous oxide (N2O) has been identified of having the major interest/concern, since its high global warming potential (GWP), is 298 times higher than that of CO2 and also to its capability to react with stratospheric ozone causing the layer depletion. Up to now, most of the experimental investigations have been carried out on conventional activated sludge (CAS) processes. The knowledge of N2O emission from advanced technologies such membrane bioreactors (MBRs) is still very limited. The…

Quantifying sensitivity and uncertainty analysis of a new mathematical model for the evaluation of greenhouse gas emissions from membrane bioreactors

2015

Abstract A new mathematical model able to quantify greenhouse gas (GHG) emissions in terms of carbon dioxide (CO 2 ) and nitrous oxide (N 2 O) for a Membrane Bioreactor (MBR) is presented. The proposed mathematical model is of the Activated Sludge Model (ASM) family and takes into account simultaneously both biological and physical processes (e.g., membrane fouling). An analysis of the key factors and sources of uncertainty influencing GHG emissions is also presented. Specifically, the standardized regression coefficient, the Extended-FAST and a Monte Carlo based method are employed for assessing model factors which influence three performance indicators: effluent quality index, operational…

Direct Measurement of Methane Emission Rates: Multiyear Application to a Municipal Landfill in Southern Italy

2012

Municipal Solid Waste (MSW) landfills have been identified as one of the most important sources of methane (CH4) emission. MSW contains a certain amount of biodegradable organic matter which undergoes anaerobic degradation resulting in the production of the landfill gas (LFG), which main component is tipically represented by CH4. In order to minimise its negative effects on the envi-ronment, LFG recovery is a suitable tool to control CH4 emissions from a landfill site and the measurement of CH4 emissions represents a good way to evaluate the effectiveness of LFG recover-ing system in reducing biogas emission to the atmosphere. However, up to now few measurements of landfill CH4 emissions ha…

Estimation of methane emission by a municipal landfill: the case of Palermo

2010

CH4 diffuse emissions from municipal solid waste landfills represent one of the most important anthropogenic source of greenhouse-gas. CH4 is produced by anaerobic biodegradation of organic matter in land-filled MSW and it constitutes the major component of landfill gas. Gas recovery is a suitable tool to effectively control CH4 emissions from landfill sites and the quantification of CH4 emissions represents a good tool to evaluate the effectiveness of biogas recovering system in reducing biogas emission. In particular, LFG emissions can be indirectly evaluated from mass balance equations between formation, recovery and oxidation of biogas in the landfill, as well as on a direct approach ba…