Search results for "MICI"

Waveforms clustering and single-station location of microearthquake multiplets recorded in the northern Sicilian offshore region

2013

In 2009 December, the OBSLab-INGV (Istituto Nazionale di Geofisica e Vulcanologia) deployed an Ocean Bottom Seismometer with Hydrophone (OBS/H) near the epicentral area of the main shock of the Palermo seismic sequence of 2002. The monitoring activity had a total duration of about 8 months. During this experiment, the OBS/H recorded 247 very local microearthquakes, whose local magnitude is between -0.5 and 2.5 and TS - TP delay time between 0.2 and 5 s, almost all ofwhichwere undetected by the Italian National Seismic Network. This local microseismicity has been analysed using an innovative clustering technique that exploits the similarity between the waveforms generated by different events…

Intrinsic competition between two European egg parasitoids of the brown marmorated stink bug

2020

Following the accidental introduction and spread of the invasive polyphagous agricultural pest Halyomorpha halys (Stål) (Hemiptera: Pentatomidae), the two European egg parasitoids Anastatus bifasciatus (Geoffroy) (Hymenoptera: Eupelmidae) and Ooencyrtus telenomicida (Vassiliev) (Hymenoptera: Encyrtidae) have been investigated for inundative biological control. Since the competititve outcome between the two generalist parasitoids is difficult to predict, intrinsic competition was investigated with a time-course development study. Both species readily oviposited in H. halys eggs containing eggs and early instar larvae of the competitor, but oviposition decreased when eggs contained late insta…

Unveiling community patterns and trophic niches of tropical and temperate ants using an integrative framework of field data, stable isotopes and fatt…

2018

Background: The use and partitioning of trophic resources is a central aspect of community function. On the ground of tropical forests, dozens of ant species may be found together and ecological mechanisms should act to allow such coexistence. One hypothesis states that niche specialization is higher in the tropics, compared to temperate regions. However, trophic niches of most species are virtually unknown. Several techniques might be combined to study trophic niche, such as field observations, fatty acid analysis (FAA) and stable isotope analysis (SIA). In this work, we combine these three techniques to unveil partitioning of trophic resources in a tropical and a temperate community. We d…

Sensitivity analysis and process optimization of a natural gas dehydration unit using triethylene glycol

2019

Abstract Dehydration of natural gas by absorption using triethylene glycol (TEG) is a common industrial offshore procedure to ensure the compliance with the required water dew point specifications for midstream transportation. Two thermodynamic models, the UMR-PRU and the TST/NRTL, are applied for the process simulation while a preliminary economic evaluation has been conducted revealing that both yield overall similar results as for the fixed capital cost which is found to be in good agreement with reported literature values. Moreover, sensitivity analysis of several operational parameters of the process has been performed and optimized values are suggested aiming to reduce its energy requ…

Paths of local development: Two technological districts face-to-face

2009

In this paper we compare the two hi-tech districts of Catania and Genoa, which are within the same national context and economic sector, with the aim of explaining their different choices (the promotion of external investments, in the first case, and fostering of the development of small businesses, in the second case) in the light of the local economic structure and the role played by political, economic, and educational institutions. Local actors have differently influenced the development of a professional community through the interpersonal networks of entrepreneurs and the performance obtained by local small businesses. While Catania has experienced a higher and more rapid growth, deve…

Le economicità d’azienda. Profili storici e considerazioni teoriche intorno alla teoria dell’equilibrio economico di Enrico Cavalieri

2014

Quasi-markets Targets and the Evaluation of Nursing-home Funding in the Valencian Region

2016

EnglishSpanish long term care is in danger, therefore we propose a change in the nursing home funding system. We use as an example the extremely complex nursing home financing system of Valencian Region. In this region, there are many funding mechanisms: two types of public subsidies, two different accessibility plans, a voucher scheme and a cash benefit approach related to residential service. We evaluate these methods through the quasi-market theory. We find that these approaches have negative impact on equity, efficiency and freedom of choice and we propose a new, homogeneous financing method for all nursing homes through voucher. EnglishLong term care, nursing homes, quasi-markets, vouc…

Pedagogia dell'amicizia adolescenziale. Verità e metodologia educativa

2009

Fin dall’età adolescenziale l’amicizia autentica si cela dietro il ventaglio di virtù del cuore e dell’intelligenza del vero amico. Per questo, essa è «immagine esteriore di una realtà interiore»: della coscienza, in cui si costituisce e si mantiene, sulla scorta dei significati delle emozioni, degli affetti e dei sentimenti condivisi, come «distinta essenza etica». L’intenzionalità educativa ha la capacità di orientare le azioni dell’educatore in direzione dell’“amicalità”, che egli deve forgiare nell’educando innanzitutto con il suo esempio di una vita amicale vera e, al contempo, con l’educazione delle sei virtù che costituiscono l’essere amicale autentico. Solo così forse possono nascer…

Fundamentals of photoelectrocatalysis

2022

Photoelectrocatalysis combines heterogeneous photocatalysis and electrocatalysis principles for numerous processes including the degradation of harmful compounds, the generation of H2 and O2 from water splitting, the reduction of CO2 or the photoelectrocatalytic synthesis of valuable organic molecules otherwise difficult to be synthetized with classical approaches. The recent progress of photoelectrocatalysis is heavily related to the development of materials, especially in 2D and nano materials. Highly ordered nanomaterials such as graphene, nanotubes, nanowires, etc. are gaining more attention due to their high surface area and excellent conductivity. Other challenges are the development …

Acid and alkaline production from multi-ionic brines via Electrodialysis with Bipolar Membranes

2022

In recent years, a great attention has grown towards the brine valorization through chemicals production and mineral recovery as an alternative to conventional disposal. Electrodialysis with Bipolar Membranes (EDBM) is an emerging process that can be used for the production of alkaline and acidic solutions from salt solutions. Within the SEArcularMINE project framework, the exploitation of saltworks bitterns (highly concentrated solutions generated during the sea-salt production process) is proposed for minerals recovery and NaOH and HCl solutions production. In this work, an EDBM unit, equipped with commercial ion exchange membranes, was tested for the first time in closed-loop mode with: …