A series of cultural, morphological and patogenic characters were evaluated in 8 isolated of Sclerotium rolfsii Sacc. coming from bean and sunflower. Variability exists among them in the Rate of ...Micelial Growth, number and diameter of formed esclerocios, density of micelium, rizomorphes presence, duration of esclerotium formation process and patogenicity on beans and sunflower. These differences, united to the presence of incompatibility and antagonism among the isolated allow us to discern presence of different races of pathogen.
The present work focuses on the genera Bivetiella, Sveltia, Calcarata, Solatia, Trigonostoma and Brocchinia. The genus Bivetiella includes B. similis, herein first recorded from the Pleistocene of ...Italy, and B. cancellata. Sveltia includes S. varicosa and S. lyrata, whereas Calcarata is only represented by C. calcarata. Three species of Solatia are present in the Italian Plio-Pleistocene: S. hirta, S. barjonae and Solatia sp. 1. For Trigonostoma, the occurrence in the Pliocene of Italy is confirmed for T. ampullaceum, T. umbilicare, T. bellardii, T. parvotriangula and T. cassideum. Three species are reported for the genus Brocchinia: B. depressiplicata, Brocchinia subanodosa and Brocchinia crassinodosa. All of the species are illustrated, commented and compared with other species.Original Abstract: Sono esaminate alcune specie di Cancellariidae del Plio-Pleistocene italiano appartenenti ai generi Bivetiella, Sveltia, Calcarata, Solatia, Trigonostoma e Brocchinia. Per il genere Bivetiella viene segnalata per la prima volta la presenza di B. similis per il Pleistocene italiano, oltre a B. cancellata. Per il genere Sveltia e Calcarata vengono esaminate le specie S. varicosa, S. lyrata e C. calcarata. Per il genere Solatia sono considerate come sicuramente presenti 3 specie: S. hirta, S. barjonae e Solatia sp.1. Per il genere Trigonostoma viene confermata la presenza nel Pliocene italiano delle specie T. ampullaceum, T. umbilicare, T. bellardii, T. parvotriangula e T. cassideum, per le quali vengono discussi i rapporti con le specie mioceniche. Per il genere Brocchinia viene considerata valida B. depressiplicata. Per lo stesso genere, nel Pliocene italiano sono inoltre presenti Brocchinia subanodosa e Brocchinia crassinodosa.
Le stockage de l'énergie solaire thermique s'avère aujourd'hui nécessaire si on veut atteindre une meilleure efficacité et une utilisation à grande échelle de cette ressource. Le stockage sous forme ...de potentiel chimique se révèle être adapté au stockage de chaleur sur le long terme (cycles saisonniers ou pluriannuels) parce qu'il présente les moindres pertes thermiques par rapport au stockage sensible ou latent. Malgré les avancées significatives faites ces dernières années dans ce domaine, il n'existe pas aujourd'hui de système achevé dédié à ce type de stockage. Le but du présent travail est de démontrer la faisabilité d'un procédé de stockage de chaleur solaire à long terme par absorption pour le chauffage des bâtiments. La chaleur est stockée en été grâce à la désorption et restituée en hiver à travers l'absorption. Une analyse multicritère portant des couples de sorption possibles a permis d'identifier le couple LiBr−H2O pour la démonstration de faisabilité du concept. Il a été montré que la cristallisation d'une partie de la solution permet de multiplier par trois la densité de stockage énergétique et donc d'améliorer la compétitivité du procédé. Un modèle dynamique a été développé pour dimensionner et simuler les performances du système sous différentes conditions opératoires. De nombreuses simulations paramétriques ont permis de discuter de l'influence de différents paramètres et aspects du contrôle du procédé. Cela a donné lieu à la conception et au dimensionnement d'un prototype de démonstration capable de stocker 8 kWh de chaleur et de produire une puissance moyenne de chauffage de 1 kW. Ce prototype a été construit et expérimenté en fonctionnement statique et dynamique sur un banc d'essai, dans des conditions compatibles avec une installation solaire domestique. La faisabilité de la charge du procédé a ainsi été démontrée. L'absorption durant la phase de décharge est effective bien que des problèmes, dus notamment à une conception inadaptée de l'absorbeur, n'ont pas permis d'assurer la restitution de la chaleur. Différents aspects tels que la stratification et la circulation de la solution dans son réservoir ont également été abordés. La confrontation du modèle et des résultats expérimentaux a ainsi été réalisée et discutée.
Energy storage is a key component to improve the efficiency of energy systems, especially when the energy source is intermittent, such as solar energy. Heat storage systems based on sorption processes are relevant in case of long-term storage (seasonal or pluriannual storage) because of their acceptable heat losses. Even though considerable breakthroughs have been made in the past decades, there is no mature long-term sorption heat storage yet. The aim of this work is to demonstrate the feasibility of a long term solar thermal storage by absorption for building space heating. Solar heat is stored in summer using desorption process and released in winter via absorption. A multicriteria analysis on various possible absorption couples leads to the choice of LiBr−H2O as storage media for the concept feasibility demonstration. It has been shown that crystallisation in the solution storage tank can increase the storage density by three times and therefore, is relevant for the process competiveness. A dynamic model has been developed for the system design and simulations under various operating conditions were performed. A lot of parametric simulations are used to investigate the influence of certain parameters and controls aspects. This helps designing a demonstrative prototype that can store 8 kWh of heat and can produce a heating power of 1 kW. The prototype has been built and tested on a test bed in static and dynamic operating conditions that are compatible with domestic solar thermal plants. The charging process has been proved successful. Absorption during discharging phase is also verified. However, some problems related to the absorber design have not made possible to observe the heat release as expected. Various aspects such as stratification and circulation in the solution storage tank have also been addressed. The model comparison with experimental result is then performed and discussed.
The monument consists of a cap containing a succession of parallelepiped volumes. To the top has a platform where the sides are decorated with swords and cross rifles. In the upper part of the ...platform is a cross on which there is a mourning flag.
Monumentul este alcătuit dintr-un soclu ce conține o succesiune de volume paralelipipedice. Către partea superioară are o platformă unde laturile sunt decorate cu săbii și puști încrucișate. În partea superioară a platformei se află o cruce pe care se află un steag îndoliat.
Monumentul este alcătuit dintr-un soclu ce conține o succesiune de volume paralelipipedice. Către partea superioară are o platformă unde laturile sunt decorate cu săbii și puști încrucișate. În partea superioară a platformei se află o cruce pe care se află un steag îndoliat.
Inscripții pe monument: ”MĂRĂȘEȘTI. RÎUL ALB. RECUNOȘTINȚĂ ȘI VENERAȚIE EROILOR CĂZUȚI ÎN RĂZBOIUL 1916-1918” ”RIDICAT ÎN ANUL 1934”
