995 resultados para Art objects, Classical.
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Comprend : [Bandeau folio Aij : allégorie de la Justice. Homme écrivant, singe. Ornements à la Bérin.] [Cote : Res Atlas V 117/Microfilm R 101257] ; [Pl.1 : de la mécanique à carder le coton. Vues et développements de la machine à carder le coton.] L'art du fabricant de velours de coton. [Cote : Res Atlas V 117/Microfilm R 101257] ; [Pl.2 : de la mécanique à carder le coton. Machine à carder le coton.] L'art du fabricant de velours de coton. [Cote : Res Atlas V 117/Microfilm R 101257] ; [Pl.3 : de la mécanique à carder le coton. Machine à carder le coton. Fig.4 : petits cadres en fer, implantés sur la charpente de la mécanique, sur lesquels s'appuie et tourne l'axe des cylindres.] L'art du fabricant de velours de coton. [Cote : Res Atlas V 117/Microfilm R 101257] ; [Pl.4 : de la mécanique à filer le coton et de la manière de s'en servir.] L'art du fabricant de velours de coton. [Cote : Res Atlas V 117/Microfilm R 101257] ; [Pl.5 : de la mécanique à filer le coton et de la manière de s'en servir.] L'art du fabricant de velours de coton. [Cote : Res Atlas V 117/Microfilm R 101257] ; [Pl.6 : fabrication du velours. Fig.1 : moulins à retordre les fils de coton, doublés pour la châine des velours] L'art du fabricant de velours de coton. [Cote : Res Atlas V 117/Microfilm R 101257] ; [Pl.7 : fabrication du velours. Fig.1 : vue perspective du métier monté et en travail.] L'art du fabricant de velours de coton. [Cote : Res Atlas V 117/Microfilm R 101257] ; [Pl.8 : fabrication du velours. Armure de piqué pour un carreau quatre points simple ou double, velours velvet-ret, croisé, piqué ou cannelé. Fig.8 : fabrication d'une toile sans lisière.] L'art du fabricant de velours de coton. [Cote : Res Atlas V 117/Microfilm R 101257] ; [Pl.9 : fabrication du velours. Le fourneau à brûler, griller ou raser les velours de coton et de la manière de faire cette opération.] L'art du fabricant de velours de coton. [Cote : Res Atlas V 117/Microfilm R 101257] ; [Pl.10 avec 3 vignettes : vignette 1, fabrication du velours. Des couleurs en bon teint. Atelier de teinture pour les coulers ordinaires, les garançages etc. Vignette 2 : atelier de teinture pour les cuves de bleu. Vignette 3 : atelier de teinture pour les tones de noir.] L'art du fabricant de velours de coton. [Cote : Res Atlas V 117/Microfilm R 101257] ; [Pl.11 : fabrication du velours. Des couleurs en bon teint. De la cuve du bleu à chaud. Mécanique à imprimer au cylindre les toiles, croisés, satinettes, velours de coton etc. Mécanique à découper les velours cannelés et le velvet-ret avec l'ouvrier vu en travail. ] L'art du fabricant de velours de coton. [Cote : Res Atlas V 117/Microfilm R 101257]
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A systematic time-dependent perturbation scheme for classical canonical systems is developed based on a Wick's theorem for thermal averages of time-ordered products. The occurrence of the derivatives with respect to the canonical variables noted by Martin, Siggia, and Rose implies that two types of Green's functions have to be considered, the propagator and the response function. The diagrams resulting from Wick's theorem are "double graphs" analogous to those introduced by Dyson and also by Kawasaki, in which the response-function lines form a "tree structure" completed by propagator lines. The implication of a fluctuation-dissipation theorem on the self-energies is analyzed and compared with recent results by Deker and Haake.
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In the simplest model of open inflation there are two inflaton fields decoupled from each other. One of them, the tunneling field, produces a first stage of inflation which prepares the ground for the nucleation of a highly symmetric bubble. The other, a free field, drives a second period of slow-roll inflation inside the bubble. However, the second field also evolves during the first stage of inflation, which to some extent breaks the needed symmetry. We show that this generates large supercurvature anisotropies which, together with the results of Tanaka and Sasaki, rule out this class of simple models (unless, of course, Omega0 is sufficiently close to 1). The problem does not arise in modified models where the second field does not evolve in the first stage of inflation.
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The Lorentz-Dirac equation is not an unavoidable consequence of solely linear and angular momenta conservation for a point charge. It also requires an additional assumption concerning the elementary character of the charge. We here use a less restrictive elementarity assumption for a spinless charge and derive a system of conservation equations that are not properly the equation of motion because, as it contains an extra scalar variable, the future evolution of the charge is not determined. We show that a supplementary constitutive relation can be added so that the motion is determined and free from the troubles that are customary in the Lorentz-Dirac equation, i.e., preacceleration and runaways.
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We propose a definition of classical differential cross sections for particles with essentially nonplanar orbits, such as spinning ones. We give also a method for its computation. The calculations are carried out explicitly for electromagnetic, gravitational, and short-range scalar interactions up to the linear terms in the slow-motion approximation. The contribution of the spin-spin terms is found to be at best 10-6 times the post-Newtonian ones for the gravitational interaction.
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Because of the increase in workplace automation and the diversification of industrial processes, workplaces have become more and more complex. The classical approaches used to address workplace hazard concerns, such as checklists or sequence models, are, therefore, of limited use in such complex systems. Moreover, because of the multifaceted nature of workplaces, the use of single-oriented methods, such as AEA (man oriented), FMEA (system oriented), or HAZOP (process oriented), is not satisfactory. The use of a dynamic modeling approach in order to allow multiple-oriented analyses may constitute an alternative to overcome this limitation. The qualitative modeling aspects of the MORM (man-machine occupational risk modeling) model are discussed in this article. The model, realized on an object-oriented Petri net tool (CO-OPN), has been developed to simulate and analyze industrial processes in an OH&S perspective. The industrial process is modeled as a set of interconnected subnets (state spaces), which describe its constitutive machines. Process-related factors are introduced, in an explicit way, through machine interconnections and flow properties. While man-machine interactions are modeled as triggering events for the state spaces of the machines, the CREAM cognitive behavior model is used in order to establish the relevant triggering events. In the CO-OPN formalism, the model is expressed as a set of interconnected CO-OPN objects defined over data types expressing the measure attached to the flow of entities transiting through the machines. Constraints on the measures assigned to these entities are used to determine the state changes in each machine. Interconnecting machines implies the composition of such flow and consequently the interconnection of the measure constraints. This is reflected by the construction of constraint enrichment hierarchies, which can be used for simulation and analysis optimization in a clear mathematical framework. The use of Petri nets to perform multiple-oriented analysis opens perspectives in the field of industrial risk management. It may significantly reduce the duration of the assessment process. But, most of all, it opens perspectives in the field of risk comparisons and integrated risk management. Moreover, because of the generic nature of the model and tool used, the same concepts and patterns may be used to model a wide range of systems and application fields.
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Outgoing radiation is introduced in the framework of the classical predictive electrodynamics using LorentzDiracs equation as a subsidiary condition. In a perturbative scheme in the charges the first radiative self-terms of the accelerations, momentum and angular momentum of a two charge system without external field are calculated.
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We deal with a classical predictive mechanical system of two spinless charges where radiation is considered and there are no external fields. The terms (2,2)Paa of the expansion in the charges of the HamiltonJacobi momenta are calculated. Using these, together with known previous results, we can obtain the paa up to the fourth order. Then we have calculated the radiated energy and the 3-momentum in a scattering process as functions of the impact parameter and the incident energy for the former and 3-momentum for the latter. Scattering cross-sections are also calculated. Good agreement with well known results, including those of quantum electrodynamics, has been found.
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Background Medication adherence is a complex, dynamic and changing behaviour that is affected by a variety of factors, including the patient's beliefs and life circumstances. Studies have highlighted barriers to medication adherence (e.g., unmanaged side effects or a lack of social support), as well as facilitators of medication adherence (e.g., technical simplicity of treatment and psychological acceptance of the disease). Since August 2004, in Lausanne (Switzerland), physicians have referred patients who are either experiencing or are at risk of experiencing problems with their HIV antiretroviral treatment (ART) to a routine interdisciplinary ART adherence programme. This programme consists of multifactorial intervention including electronic drug monitoring (MEMS(TM)). Objective This study's objective was to identify the barriers and facilitators encountered by HIV patients with suboptimal medication adherence (≤90 % adherence over the study period). Setting The community pharmacy of the Department of Ambulatory Care and Community Medicine in Lausanne (Switzerland). Method The study consisted of a retrospective, qualitative, thematic content analysis of pharmacists' notes that were taken during semi-structured interviews with patients and conducted as part of the ART adherence programme between August 2004 and May 2008. Main outcome measure Barriers and facilitators encountered by HIV patients. Results Barriers to and facilitators of adherence were identified for the 17 included patients. These factors fell into three main categories: (1) cognitive, emotional and motivational; (2) environmental, organisational and social; and (3) treatment and disease. Conclusion The pharmacists' notes revealed that diverse barriers and facilitators were discussed during medication adherence interviews. Indeed, the results showed that the 17 non-adherent patients encountered barriers and benefited from facilitators. Therefore, pharmacists should inquire about all factors, regardless of whether they have a negative or a positive impact on medication adherence, and should consider all dimensions of patient adherence. The simultaneous strengthening of facilitators and better management of barriers may allow healthcare providers to tailor care to a patient's specific needs and support each individual patient in improving his medication-related behaviour.
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Abstract