Добірка наукової літератури з теми "Thermo-Hydric transfers"
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Статті в журналах з теми "Thermo-Hydric transfers":
Samaké, Abdoulaye, Mustapha Taazount, Philippe Audebert, and Patricio Palmili. "Thermo-hydric transfer within timber connections under fire exposure: Experimental and numerical investigations." Applied Thermal Engineering 63, no. 1 (February 2014): 254–65. http://dx.doi.org/10.1016/j.applthermaleng.2013.10.049.
Chauhan, Parul, Elio Moussa, Noémie Prime, Simon Wheeler, and Olivier Plé. "Simulating the drying behavior of rammed earth columns." E3S Web of Conferences 195 (2020): 01025. http://dx.doi.org/10.1051/e3sconf/202019501025.
Hassini, Lamine, Roman Peczalski, Soufien Azzouz, and Ali Belghith. "Hydro-Thermo-Mechanical Model for Highly Deformable Product during Convective Drying." Chemical Product and Process Modeling 4, no. 1 (June 22, 2009). http://dx.doi.org/10.2202/1934-2659.1258.
Дисертації з теми "Thermo-Hydric transfers":
Tlemsani, Fatima Zohra. "Mesure des transferts thermiques et hydriques par intégration des fluxmètres thermiques textiles dans un vêtement pour les enfants en situation de polyhandicap." Electronic Thesis or Diss., Université de Lille (2022-....), 2023. http://www.theses.fr/2023ULILN004.
Children with cerebral palsy experience significant psychological stress during rehabilitation. This is related to many psychological factors such as fear, anxiety and phobias, and physical factors such as the weight of the rehabilitation devices, their friction on the body, and the pain related to motor problems. In the state of art, it has been shown that researchers have followed an approach using physiological parameters as biomarkers of stress. They mainly use biosignals such as skin temperature (ST), electrocardiography (ECG), electrodermal activity (EDA), electromyography (EMG), respiration, pupil diameter, electroencephalography (EEG) for stress assessment. Since thermal and hydric exchanges are a function of temperature evolution, they can also be an indicator of stress, especially since they represent an indicator of thermal discomfort. For this purpose, in this work, a textile heat fluxmeter, which has characteristics of permeability, flexibility and suitability for use on the skin, has been developed, analyzed and characterized. An experimental device was set up in order to establish a calibration system of the fluxmeter. Then the thermo-hydric behavior of the fluxmeters was analyzed under laboratory conditions. The developed textile heat fluxmeter showed similar sensitivities as the gold standard sensor. Moreover, the study of the fluxmeter performance showed a similar behavior to that of the standard sensor. Therefore, stress tests were conducted on 20 healthy adult volunteers of different ages and genders, women and men, and on two children, 7 and 12 years old, also healthy. Three different types of activities were performed to induce stress, namely, mathematical activities, virtual reality games and a sports activity. This was with the objective of stimulating different types of stress, i.e. positive stress (eustress), negative stress and physical stress, respectively. The results of the tests show a similar behavior between the two fluxmeters (textile and standard), and a positive correlation between the behavior of the electrocardiogram and the fluxmeter. A relation was established in the majority of cases between the volunteers' feedback on the stress they felt and their thermo-hydric response measured by the textile heat fluxmeter
Maaroufi, Mohamed-Ali. "Étude du comportement hygrothermique de matériaux céramiques réfractaires à liants alumineux pour le confinement de l'aluminium liquide." Thesis, Université de Lorraine, 2014. http://www.theses.fr/2014LORR0235.
This thesis aims to find solutions to minimize as much as possible the presence of micro-porosities in conventional and new aerospace alloys. These micro-porosities resulting especially from the reaction of the molten aluminum, during the casting phase, with the hydrogen provided by the steam contained in the refractory castables. Most of these castables are composites obtained with hydraulic binders based on aluminous cements. Firstly, a physico-chemical and mineralogical characterization of the basic materials and processed products was performed. Then, the thermo-hydric behavior of different castables and hardened cement pastes (principal source of the physical water and the chemical water) was then studied by moisture pick up tests made in various hygrothermal conditions, including at high temperatures (300 °C). It was shown that the hydric variations amplitudes strongly depend on the binder’s nature, in particular on its alumina content. The phenomena of physisorption and chemisorption are mobilized. Meanwhile, the transient thermal behavior in the time through the thickness of a refractory launder was modeled as a first step to quantify the water vapor transfer in the materials. Continuous measurements of temperature and pressure were obtained on pastes and concretes samples variously packged, placed in contact with a heated metal band maintained at 700 °C. Other measurements were made. They consisted into immersing samples (cement pastes and castables), previously stored in different hygrothermal conditions in liquid aluminum, in order to compare their reactivity in terms of release of hydrogen, oxygen and water vapor
Varnier, Maximin. "Comportement thermo-hygro-mécanique différé des feuillus : des sciences du bois à l'ingénierie." Thesis, Limoges, 2019. http://www.theses.fr/2019LIMO0035/document.
The design and verification of timber structures, for use in Civil Engineering, is governed by the European standard Eurocode 5. It allows to size any structure element according to the load applied to it and assumptions about its environment. Essentially coordinated by the Nordic timber industry, this standard is based on the exclusive use of softwoods. However, French country has the largest hardwood forest in Europe. Today, these species have their place in timber structures by considering, for example, natural durability properties. Unfortunately, these species are not today considered in design rules. The EFEUR5 project, funded by the National Research Agency, aims to respond to this problem by doing work like those already carried out for softwoods. Thus, the work objectives are for understanding and modeling the long-term mechanical behavior of French hardwood species like oak, beech and poplar. In support of these species, Douglas fir is added as the conifer reference.The study starts with the anatomical structure analysis of the of the species studied. The objective of this analysis is to highlight the differences between these four species. Because the long-term mechanical behavior depends on moisture content, we must first determine the evolution of moisture in the section of a structural element. For this, it is presented in this chapter an innovative experimental protocol for determining the diffusion properties of a test tube located outdoors. The identification of the diffusion properties carried out we propose a study of the sensitivity of the water behavior differences on a structural element.The implementation of the evolution of moisture within a structure element, regardless of its geometry and environment, we present the different physical phenomena involved when creeping a structural element and their implementation in a code with finite elements. Next, we describe the completion of two four-point bending benches at the metric scale of hardwood and Douglas-fir beams. The instrumentation allows to analyze their deferred behavior according to their environment. In a second step, these numerical data are used to determine the hydro viscoelastic properties enabled, by inverse analysis. Thus, a comparison of the viscoelastic properties between these four species is presented.We conclude this study with a proposal for a new approach for considering the delayed mechanical behavior of structural elements. The approach consists in the determination of the long-term behavior through a reference behavior. The prediction of long-term deflection is then defined from the average humidity of the study element. This approach makes it possible to report both the geometry of the beam and its initial humidity