Search results for "Arbres"
showing 9 items of 19 documents
IL COSTUME E LA LINGUA, Progetto di un alfabetario
2010
Come si vede già dalle prime foto documentali, si è trattato - in primis - di un momento pedagogico, molto empatico e simpatetico come deve essere la scuola quando è un buona scuola. Quelli che hanno partecipato - lo si legge nei loro sguardi - si ricorderanno dell’esperienza. E poi la formula didattica, che traspare chiaramente da tutta la documentazione delle belle immagini, era precisa e opportunamente finalizzata: si capisce che il brief era ben definito e realistico. Ma non rigidamente prescrittivo: c’era tutto lo spazio necessario per l’innovazione e la ricerca, come si conviene a un lavoro universitario. E il problema progettuale era stato formulato o meglio “settato” in modo tanto “…
A tractor mounted scanning LIDAR for the non-destructive measurement of vegetative volume and surface area of tree-row plantations: A comparison with…
2009
The use of a low-cost tractor-mounted scanning Light Detection and Ranging (LIDAR) system for capable of making non-destructive recordings of tree-row structure in orchards and vineyards is described. Field tests consisted of several LIDAR measurements on both sides of the crop row, before and after defoliation of selected trees. Summary parameters describing the tree-row volume and the total crop surface area viewed by the LIDAR (expressed as a ratio with ground surface area) were derived using a suitable numerical algorithm. The results for apple and pear orchards and a wine producing vineyard were shown to be in reasonable agreement with the results derived from a destructive leaf sampli…
Arbres couvrants presque disjoints
2015
International audience; Dans un réseau, la recherche de plusieurs arbres couvrants avec des propriétés intéressantes a amené à l'introduc-tion de plusieurs notions : les arbres couvrants arête-disjoints, les arbres indépendants enracinés en un sommet et les arbres complètement indépendants. Afin de généraliser ces notions, nous introduisons la notion d'arbres couvrants (i, j)-disjoints, où i et j sont respectivement le nombre maximum de noeuds internes et d'arêtes communs aux arbres couvrants. Nous montrons que déterminer s'il existe deux arbres couvrants (i, j)-disjoints dans un graphe G est un problème NP-complet pour i et j quelconques, et nous déterminons les valeurs minimales de i et j…
Les accessoires « naturels » de l'immeuble rural
2018
Titre originel : Les accessoires « naturels » des fonds ruraux – Le statut des éléments naturels présents sur les fonds est un enjeu majeur du droit écologique en cours de construction. Le propriétaire foncier devient-il automatiquement maître et possesseur de cette nature ? Les règles d'usage des infrastructures écologiques suivent-elles, en tant qu'accessoires, celles de l'immeuble principal, ou assiste-ton à la naissance de nouveaux biens, dont les fonctions collectives justifient un régime propre ?
Evaluation ex ante des conséquences de l’adoption de la production intégrée à l’échelle de la Bourgogne
2014
Apport de l’analyse d’un espace transfrontalier à travers la modélisation et la simulation du développement urbain. Le cas Strasbourg – Kehl
2017
National audience; Étudier et comprendre les processus de changement d’occupation du sol en général, quel qu’en soit le contexte présente une base nécessaire à l’appréhension des divers champs de recherche (changement climatique, imperméabilisation des sols, préservation des écosystèmes, aménagement urbain,mobilité résidentielle et quotidienne, qualité du cadre vie, etc). Le développement urbain est un point particulier qui attire l’attention par les enjeux qu’il représente(socio-économiques, politiques, etc.).
A New Species ofTelenomusHaliday (Hymenoptera: Scelionidae) Associated with Egg Batches of the Pine Processionary Moth,Thaumetopoea pityocampa(Dennis…
2009
Telenomus thaumetopoeae Buhl sp. n. is described from northeastern València (Peninsular Spain) taking as starting point females parasitizing the egg-batches of the Pine Processionary Moth, Thaumetopoea pityocampa (Dennis et Schiffermüller, 1775). Its morphological affinities with the most closely related species and parasitism data are offered.
Possible involvement of gibberellins on leaf expansion and carbohydrate accumulation in Citrus
1989
During the spring flush of growth both vegetative shoots and inflorescences are formed in Citrus. Some of these inflorescences bear both flowers and leaves (GOLDSCHMIDT and MONSELISE 1972). The leaves from leafy inflorescences are smaller in size (GUARDIOLA et al. 1984) and differ in composition, both organic (SANZ et al. 1987b) and mineral (EMBLETON et al. 1973) as compared to leaves from vegetative sprouts. Some of these differences are related to the competition of nearby developing flowers and fruitlets, but a different type of regulation may also be involved. Early removal of developing reproductive organs had no effect on leaf growth (SANZ et al. 1987a). Further, inflorescence leaves …
Recursion at the crossroads of sequence modeling, random trees, stochastic algorithms and martingales
2013
This monograph synthesizes several studies spanning from dynamical systems in the statistical analysis of sequences, to analysis of algorithms in random trees and discrete stochastic processes. These works find applications in various fields ranging from biological sequences to linear regression models, branching processes, through functional statistics and estimates of risk indicators for insurances. All the established results use, in one way or another, the recursive property of the structure under study, by highlighting invariants such as martingales, which are at the heart of this monograph, as tools as well as objects of study.