Search results for "FORCES"
showing 10 items of 141 documents
Comportamento di una passerella pedonale strallata nei confronti delle azioni del vento
2007
The wind behaviour of a stayed footbridge has been analyzed. In order to avoid aeroelastic phenomena, an experimental campaign on a 1:15 scale model has been realized at the boundary-layer wind-tunnel of the Milan Polytechnic. The aerodynamic characterization of the structure has allowed to direct the project towards the choice of non-solid barriers, but with a medium porosity, by avoiding possible problems that can lead to ultimate limit state condi-tions of the structure (e.g., flutter or vortex shedding). In this way the quantitative effect of barriers has been estimated deducing reliable values not only for the alongwind forces, but also for the crosswind and torsional actions.
Bounds to internal forces for elastic-plastic solids subjected to variable loads
1979
Considering an elastic-plastic workhardening solid with piecewise linear yield surfaces and a piecewise linear workhardening law, we give a method for constructing bounds to the internal forces and to the (hardened) yield stresses produced by the action of variable loads at any point of the body and at any time. The loading history is supposed to be unknown, but the loads range within a given domain.
Les interactiones de Casimir hors d'équilibre : effets dynamiques et thermiques
2016
In this thesis, after an introduction where we briefly present the general context of Casimir physics, we present the results obtained during the PhD. At first, we show our work about the van der Waals/Casimir-Polder interactions between two atoms in an out-of-equilibrium condition due to their uniformly accelerated motion. We study the system of two uniformly accelerated atoms in vacuum space, when they are in their ground-state and when they are in a correlated state (one excited and one ground-state atom). We analyze this system both with an heuristic semiclassical model and with a more rigorous method, based on a separation of radiation reaction and vacuum fluctuations contributions, th…
Towards human exploration of space: the THESEUS review series on cardiovascular, respiratory, and renal research priorities
2016
International audience; The THESEUS project (Towards Human Exploration of Space: aEUropean Strategy) was initiated within the seventh FrameworkProgramme by the European Commission. This project aimed toprovide a cross-cutting, life science-based roadmap for Europe’sstrategy towards human exploration of space, especially for deepspace missions and its relevance to applications on Earth. Toaddress these challenges, relevance of space research on thecardiovascular system, the lungs and kidneys, was discussed in anexpert group and its principal conclusions will be presented in thisarticle.
Les forces de la vie (18e siècle)
1994
International audience
« Lieux communs : gendarmes et policiers dans les villes de la Troisième République (1870-1914) »
2008
International audience
L'application de la loi hors les tribunaux : les gendarmes et les policiers, "leges animatae" de la République (1870-1914) ?
2006
International audience; Les policiers et les gendarmes de la Troisième République sont-ils comme les gardiens qui arrêtent le Joseph K. du Procès et exécutent mécaniquement la sentence de juges incarnant une norme incontestable ? Si les représentations corporatives des forces de l'ordre confortent cette vision kafkaïenne d'une totale application de la loi par les auxiliaires judiciaires, la réalité est d'une diversité plus surprenante ; cette variété pose la question de la mise en œuvre de la loi hors les tribunaux et de son adaptation aux contraintes sociales par les agents chargés de son exécution. La typologie des facteurs favorisant les distorsions entre la lettre de la loi et son appli…
Kilka uwag o alkoholu i tytoniu w życiu żołnierzy polskich w XVII w. i w pierwszej połowie XVIII w
2017
For centuries alcohol had constituted a key component of soldiers’ diet. As early as in ancient times, health benefits of wine and its impact on human body were appreciated, foremostly its germicidal properties. Probably alcohol was popular among soldier of the first Piasts or knight of the time of regional disintegration, time of king Władysław 1 the Elbow-high, Casimir the Great or kings of the Jagiellonian dynasty. It may be presumed that the former only drank beer, however, knights in XIV-XV treated it as a common everyday beverage, relishing wine for special occassions and during feasts. In XVI century the list of alcoholic beverages was enriched by vodka - aqua vitae. In the first hal…
Force probe measurements of antibody-antigen interactions.
2000
The surface force apparatus has been used to quantify directly the forces that govern the interactions between proteins and ligands. In this work, we describe the measured interactions between the antigen fluorescein and the Fab' fragment of the monoclonal 4-4-20 anti-fluorescyl IgG antibody. Here we first describe the use of the surface force apparatus to demonstrate directly the impact of the charge composition in the region of the antibody binding site on the antibody interactions. Several approaches are described for immobilizing antigens, antibodies, and proteins in general for direct force measurements. The measured force profiles presented are accompanied by an extensive discussion o…
DLPNO-CCSD(T) scaled methods for the accurate treatment of large supramolecular complexes
2017
In this work, we present scaled variants of the DLPNO-CCSD(T) method, dubbed as (LS)DLPNO-CCSD(T) and (NS)DLPNO-CCSD(T), to obtain accurate interaction energies in supramolecular complexes governed by noncovalent interactions. The novel scaled schemes are based on the linear combination of the DLPNO-CCSD(T) correlation energies calculated with the standard (LoosePNO and NormalPNO) and modified (Loose2PNO and Normal2PNO) DLPNO-CCSD(T) accuracy levels. The scaled DLPNO-CCSD(T) variants provide nearly TightPNO accuracy, which is essential for the quantification of weak noncovalent interactions, with a noticeable saving in computational cost. Importantly, the accuracy of the proposed schemes is…