Search results for "forest"

SULLA APPLICABILITÀ DELLA USLE-MM PER LA STIMA DISTRIBUITA DELLA PRODUZIONE DI SEDIMENTI

2010

Nella memoria è presentata una nuova versione del modello distribuito SEDD (SEdiment Delivery Distributed model) che accoppia la RUSLE o la USLE-MM con un criterio spazialmente distribuito per la stima dei processi di trasferimento delle particelle erose all’interno di un bacino idrografico. In particolare, viene proposta l’applicazione a scala di bacino di un fattore di erosività, che tiene conto anche del processo di deflusso a scala di versante, e di un fattore di erodibilità del suolo determinati utilizzando le misure parcellari condotte nell’area sperimentale di Sparacia in Sicilia. Il modello è stato calibrato utilizzando le misure dei deflussi liquidi e solidi effettuate nei bacini s…

Utilizzo di modelli bimodali per la descrizione della curva di ritenzione idrica del suolo

2013

L’approfondimento dell’influenza della struttura sulle caratteristiche di ritenzione idrica del suolo può contribuire alla risoluzione dei problemi legati all’eterogeneità del mezzo poroso ed anche alla quantificazione della qualità fisica del suolo. In particolare, nei suoli naturali strutturati, la presenza di un dominio dei pori strutturali (porosità inter-aggregati) e di un dominio dei pori matriciali (porosità intra-aggregati) può essere descritta mediante un’espressione della curva di ritenzione idrica di tipo bi-modale. L’indagine ha riguardato 40 suoli siciliani, per i quali è stato applicato alle misure sperimentali di ritenzione idrica il modello bimodale proposto da Dexter et al.…

Protected forest areas in Europe – analysis and harmonisation: Country Report Italy.

2005

Evaluation of the Effects of the Enriched-Organic Diets Composition on European Sea Bass Welfare through a Multi-Parametric Approach

2020

Three groups of European sea bass (Dicentrarchus labrax) were fed for seven months, with either a conventional diet or two different organic diets, which contain organic vegetables and a natural antioxidant compound. The two organic diets differed themselves in terms of raw proteins, fish oil, and lipid contents. Sea bass welfare condition was assessed in relation to these three diets, using 16 different indicators. These were: swimming activity (recovery test, muscle activity), haematological and serological stress indicators (haematocrit, haemoglobin, red-blood-cell count, cortisol, glucose, lactate), aspecific immunity parameter (lysozyme), indicators of exposure to organic contaminants …

A Constructive Arboricity Approximation Scheme

2020

The arboricity \(\varGamma \) of a graph is the minimum number of forests its edge set can be partitioned into. Previous approximation schemes were nonconstructive, i.e., they approximate the arboricity as a value without computing a corresponding forest partition. This is because they operate on pseudoforest partitions or the dual problem of finding dense subgraphs.

Public provision versus private provision of industrial land: a hedonic approach

2005

Abstract This study examines the factors that explain the differences observed between the industrial land prices offered by the public sector and those offered by the private sector by means of estimating three hedonic pricing models. The results obtained show that location, defined as the distance to a highway, the distance to the city business district and the distance to the capital of the province, have an important impact on industrial land value. However, this impact is greater when private developers provide the land. Other variables considered, such as who is behind the provision of the industrial land, have an important impact on sale prices.

Privacy Preserving Client/Vertical-Servers Classification

2019

We present a novel client/vertical-servers architecture for hybrid multi-party classification problem. The model consists of clients whose attributes are distributed on multiple servers and remain secret during training and testing. Our solution builds privacy-preserving random forests and completes them with a special private set intersection protocol that provides a central commodity server with anonymous conditional statistics. Subsequently, the private set intersection protocol can be used to privately classify the queries of new clients using the commodity server’s statistics. The proviso is that the commodity server must not collude with other parties. In cases where this restriction …

Hieracium elisaeanum Arv.-Touv. ex Willk. (Asteraceae), novedad para la flora de Andalucía Occidental (España)

2020

espanolSe da a conocer por primera vez la presencia en la provincia de Cordoba de Hieracium elisaeanum Arv.-Touv. ex Willk., novedad tambien para la flora de Andalucia Occidental. EnglishThe presence of Hieracium elisaeanum Arv.-Touv. ex Willk. in the province of Cordoba is reported for the first time, and this new record supports its inclusion in the flora of western Andalusia.

La influencia de la distancia al mar en la distribución de la flora de las dunas del Cabo de Gata

1989

Se realiza un estudio de la distribución respecto de la distancia al mar de las especies presentes en una porción de la franja arenosa del Cabo de Gata (Almería, España). La distancia al mar ha resultado ser un factor decisivo cuya influencia sobre otros factores ambientales -microrrelieve- ha sido revelada por la interpretación de la ordenación establecida por el Análisis Factorial de Correspondencias efectuado sobre los datos de los valores de cobertura de Ias especies en los inventarios de los intervalos de distancia considerados. A species distribution study in relation to the sea distance is realized in a portion of the sandy strip from "Cabo de Gata" (Almeria, Spain). The sea distance…

Closure to "Deducing a drain spacing formula by applying dimensional analysis and self-similarity theory" by Vito Ferro

2017

This paper is a closure of the discussions to the paper "Deducing a drain spacing formula by applying dimensional analysis and self-similarity theory"