Search results for "Solid"
showing 10 items of 3575 documents
L'ACTION DE L'UNION EUROPÉENNE DANS LA CRISE SANITAIRE : QUELLE(S) SOLIDARITÉ(S) INTERNATIONALE(S) ?
2023
Ce chapitre analyse la manière dont l'Union européenne a mobilisé des actions de solidarité à l'occasion de la pandémie de Covid-19. Pour traiter ce sujet, l’une des possibilités consiste à le traiter de manière chronologique, c’est-à-dire d’évoquer l’action de l’Ue au début de la crise naissante pour lui faire face, puis dans la crise et enfin après la crise. Il est ensuite possible de le traiter de manière thématique, en interrogeant les domaines d’action de l’Ue, étant entendu que ses compétences, en tant qu’organisation internationale, ne sont pas toujours évidentes en matière de santé publique. Ce papier explore une troisième voie consistant à examiner les deux niveaux de diplomatie in…
Equilibres divariants entre la vapeur d'eau et les hydrates solides : Caractérisation de la nature de la solution solide, limites du domaine de divar…
1972
National audience; Nous avons récemment proposé (1, 2) deux modèles thermodynamiques pour les équilibres divariants entre la vapeur d'eau et les hydrates salins solides. Le premier postule l'existence d'une solution solide d'insertion d'eau dans le sel, le second postule l'existence d'une solution solide de substitution entre deux hydrates du sel. Le but de ce travail est d'établir un nouveau critère permettant de distinguer les deux modèles à partir de l'expérience et de délimiter le domaine divariant dans chacun des deux cas. Nous supposerons, sauf mention contraire, que la solution d'insertion obéit à la loi de Henry par rapport à l'eau et que la solution de substitution est idéale. Nous…
Rupture du Pacs : observations sous CA Paris, 9 novembre 2006
2007
International audience
The ALICE experiment at the CERN LHC
2008
Journal of Instrumentation 3(08), S08002 (2008). doi:10.1088/1748-0221/3/08/S08002
Kolāžu izmantošana vārdu krājuma nostiprināšanai angļu valodas stundās 3. klasē
2015
Diplomdarba mērķis bija atrast veidu, kā nostiprināt vārdu krājumu svešvalodā 3. klasē, pārvēršot to par aktīvu vārdu krājumu, izmantojot kolāžas. Darba tēma tika izvēlēta, jo autore tic, ka vārdu krājums ir pamats svešvalodu apgūšanā. Skolotāja uzdevums ir palīdzēt skolēniem apgūt vārdu krājumu, izmantojot vizuālos materiālus mācību procesā pēc iespējas vairāk. Izvēlētā pētījuma metode bija atsevišķa gadījuma pētījums, kas tika veikts Rīgas 32. vidusskolā 3. klasē. Datu vākšanas metodes bija 2 testi skolēniem, intervija ar vietējo angļu valodas skolotāju un skolēnu anketa. Pētījums pierādīja to, ka skolēni izbaudīja laiku veidojot kolāžas, turklāt skolēni nostiprināja vārdu krājumu angļu v…
Visual working memory resource allocation mechanism in consolidation and maintenance phase
2018
Visual working memory (VWM) is a system for actively maintaining visual information to meet the needs of an ongoing task. It allows individuals to store visual input information from a complex outside environment and provides storage space as an information buffer platform to help integrate information into a continuous visual experience. This research examined the consolidation and maintenance phase of the VWM resource allocation mechanism. Four aspects of this issue were investigated. First, resource allocation in VWM consolidation was investigated for different materials, and it was determined whether VWM resources were allocated in a serial manner for orientation materials but in a limi…
Negative emotional state modulates visual working memory in the late consolidation phase
2020
Although a considerable literature has grown up around the interactions between emotional state and visual working memory (VWM) performance, the mechanism underlying the impact of the negative emotional state on VWM remains unclear. The present study aimed to test whether the influence of emotional state is related to the early phase or late phase of VWM consolidation process. Across three experiments, we found that the negative emotional state did not affect VWM performance when the presentation time of stimuli was short. However, when the presentation time was long, the negative emotional state increased the VWM precision and reduced the VWM number. According to the two-phase model propos…
Spatially resolved SO2 flux emissions from Mt Etna
2016
Abstract We report on a systematic record of SO2 flux emissions from individual vents of Etna volcano (Sicily), which we obtained using a permanent UV camera network. Observations were carried out in summer 2014, a period encompassing two eruptive episodes of the New South East Crater (NSEC) and a fissure‐fed eruption in the upper Valle del Bove. We demonstrate that our vent‐resolved SO2 flux time series allow capturing shifts in activity from one vent to another and contribute to our understanding of Etna's shallow plumbing system structure. We find that the fissure eruption contributed ~50,000 t of SO2 or ~30% of the SO2 emitted by the volcano during the 5 July to 10 August eruptive inter…
Consolidation tests on the graffiti of the Steri’s prison with nanotechnological Ca(OH)2 dispersed in iso-propanol
2009
The combination of weathering and human activities often induce pyhisicochemical alteration on the surface of wall paintings. One of the most still largely used restoration techniques for these works of art, is based on the application of organic polymers. Due to their ability to stick detached and powdered pigments,these products provide an immediate consolidating effects. Unfortunately, both their aging and their pyhisicochemical incompatibility with the inorganic support can have serious consequences also causing further damage to the work of art. In this paper a new technological approach is presented based on the use of Ca(OH)2 nanoparticles dispersed in isopropanol. Some applicative t…
Effect of temperature on anaerobic treatment of black water in UASB-septic tank systems
2007
The effect of northern European seasonal temperature changes and low temperature on the performance of upflow anaerobic sludge blanket (UASB)-septic tanks treating black water was studied. Three UASB-septic tanks were monitored with different operational parameters and at different temperatures. The results indicated the feasibility of the UASB-septic tank for (pre)treatment of black water at low temperatures with respect to removal of suspended solids and dissolved organic material. Inoculum sludge had little effect on COD(ss) removal, though in the start-up phase some poorly adapted inoculum disintegrated and washed out, thus requiring consideration when designing the process. Removal of …