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Auswahl der wissenschaftlichen Literatur zum Thema „Confort textile“
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Zeitschriftenartikel zum Thema "Confort textile"
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Bouzgarrou, Lamia, Amira Omrane, Kaouther Belkiria, Asma Dimassi, Chaima Harrathy, Imen Kallala und Adel Gualich. „Ambiance lumineuse et confort visuel en milieu industriel : cas des ateliers de confection-textile“. Archives des Maladies Professionnelles et de l'Environnement 81, Nr. 5 (Oktober 2020): 640. http://dx.doi.org/10.1016/j.admp.2020.03.565.
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Pinares, Rubén, Franklin Lozano und Virgilio Machaca. „Textile characteristics and fibre length at dehairing on vicuña fleece“. Revista de Investigaciones Veterinarias del Perú 35, Nr. 1 (29.02.2024): e27377. http://dx.doi.org/10.15381/rivep.v35i1.27377.
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El objetivo de la investigación fue determinar la variación de las características textiles y longitud de fibra al descerdado manual del vellón de vicuña, así como evaluar la influencia del sexo, edad, sitio de muestreo del vellón, y lugar de procedencia de la vicuña sobre las características de calidad de la fibra. El descerdado manual se realizó en 77 muestras de vicuñas provenientes de tres provincias del departamento de Apurímac, Perú. Las características textiles de la fibra antes y después del descerdado fueron evaluadas usando el equipo OFDA 2000 y mediante el análisis de varianza, prueba de t y Tukey (α=0.05). La calidad de fibras descerdada es superior a la fibra no descerdada, debido a la reducción del diámetro medio de fibra (DMF) (-1.68 μm), desviación estándar de DMF (DE) (-0.73) y finura al hilado (FH) (-1.27 μm) y al incremento del porcentaje de fibras <30 µm (FC) (1.12%) y de la curvatura media (CU) (6.75°/mm). En fibra descerdada los juveniles tienen un DMF más fino (12.24 μm) que las adultas (13.01 μm), el DMF del costillar medio es más fino (12.39 μm) respecto a paleta (12.81 μm) y grupa (12.77 μm). Asimismo, se encontró variación de las características textiles (DE, CV, FC, y CU) y longitud de fibra entre los vellones de las tres provincias de Apurímac. En conclusión, el descerdado manual reduce el diámetro medio de fibra y su desviación estándar, y aumenta la curvatura media y el confort de la fibra, mejorando las propiedades de calidad y uniformidad del hilo.
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Wang, Yan Li, Jing Li, Mei Hua Zhou, Li Xia Ma und Yan Chao Zhao. „The Ecological Design and Developmental Ways of Ecological Textile“. Advanced Materials Research 347-353 (Oktober 2011): 2938–42. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.2938.
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At first, the paper introduces the international development trends of textiles, and indicates that we must conform to the ecological textile to resolve the green barriers. Then the paper introduces the concept and the essence of this ecological design, and raises the ways that achieves ecological textile from ecological evolving, ecological running, ecological designing, etc. At last, the paper introduces the ways of realizing ecological textile from four factors which are using regeneration material, reducing material consumption, elevating textile life and reusing the castoff textile.
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Cai, Yong Dong, und Shun Bin Ma. „Progress in the Study of Antistatic Fibers“. Advanced Materials Research 821-822 (September 2013): 99–102. http://dx.doi.org/10.4028/www.scientific.net/amr.821-822.99.
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Functional textiles are the fashionable concept,not only conform to the present society fashionable tide but also promote environmental development and it has very wide development space. Antistatic fibers play a vital role in ensuring the safety of people. The paper discusses the electrostatic hazards of textile materials and antistatic principle of textiles.
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Haseeb, Muhammad, Sebastian Kot, Hafezali Iqbal Hussain, Leonardus WW Mihardjo und Piotr Saługa. „Modelling the Non-Linear Energy Intensity Effect Based on a Quantile-on-Quantile Approach: The Case of Textiles Manufacturing in Asian Countries“. Energies 13, Nr. 9 (03.05.2020): 2229. http://dx.doi.org/10.3390/en13092229.
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The objective of the current examination is to identify the dynamic relationship between the textile industry and energy intensity. The study evaluates the asymmetric impact of textile manufacturing on energy intensity in leading Asian economies based on textile dominance. China, Indonesia, India, Pakistan, Bangladesh, Malaysia, South Korea, Thailand, Japan and Vietnam are dominant in textile manufacturing. In the present study we used yearly textiles and clothing data from top ten selected Asian textile manufacturing countries from 1990 to 2018. The results of quantile-on-quantile regression (QQ) confirmed that textiles and clothing (T&C) production have a positive and significant impact on energy intensity in all countries. The results further suggested that a low level of T&C production increases the level of energy intensity in all selected countries. On the other hand, the results of Granger causality in quantiles confirm a bidirectional causal relationship between T&C production and energy intensity in all selected countries except Thailand and Japan, where a uni-directional causal connection between textile and clothing manufacturing and energy intensity can also be found. This study recommends that governments and investors need to invest more in green and advanced technologies to reduce the energy intensity in Asian economies.
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Javaid, Sana, Azhar Mahmood, Habib Nasir, Mudassir Iqbal, Naveed Ahmed und Nasir M. Ahmad. „Layer-By-Layer Self-Assembled Dip Coating for Antifouling Functionalized Finishing of Cotton Textile“. Polymers 14, Nr. 13 (22.06.2022): 2540. http://dx.doi.org/10.3390/polym14132540.
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The fouling of surfaces such as textiles is a major health challenge, and there is a continuous effort to develop materials and processes to overcome it. In consideration of this, this study regards the development of antifouling functional nanoencapsulated finishing for the cotton textile fabric by employing a layer-by-layer dip coating technique. Antifouling textile finishing was formulated by inducing the nanoencapsulation of the antifouling functional group inside the hydrophobic polymeric shell. Cotton fabric was taken as a substrate to incorporate antibacterial functionality by alternatively fabricating multilayers of antifouling polymeric formulation (APF) and polyelectrolyte solution. The surface morphology of nanoencapsulated finished textile fabric was characterized through scanning electron microscopy to confirm the uniform distribution of nanoparticles on the cotton textile fabric. Optical profilometry and atomic force microscopy studies indicated increased surface roughness in the coated textile substrate as compared to the uncoated textile. The surface thickness of the fabricated textile increased with the number of deposited bilayers on the textile substrate. Surface hydrophobicity increased with number of coating bilayers with θ values of x for single layer, up to y for 20 bilayers. The antibacterial activity of the uncoated and layer-by-layer coated finished textile was also evaluated. It was significant and exhibited a significant zone of inhibition against microbial strains Gram-positive S. aureus and Gram-negative E. coli. The bilayer coating exhibited water repellency, hydrophobicity, and antibacterial activity. Thus, the fabricated textile could be highly useful for many industrial and biomedical applications.
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Schöfer, S., M. Schmitz, T. Prof Gries, C. Mack und A. Basler. „Prozesskette zur Herstellung textiler 3D-Preforms/Multi-step production of textile 3D preforms - Use of tufting and particle foam technology for draping textile semi-finished parts“. wt Werkstattstechnik online 107, Nr. 06 (2017): 392–98. http://dx.doi.org/10.37544/1436-4980-2017-06-8.
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Die Umsetzung von Prozessketten zur automatisierten Fertigung von 3D-Preforms im industriell etablierten Stempelumformverfahren ist aufgrund hoher Investitionskosten für kleine und mittlere Unternehmen bisher nicht wirtschaftlich tragbar. Die neuentwickelte Prozesskette wirkt dem entgegen und verspricht, komplexe 3D-Preforms bei geringer Prozesszeit sowohl textil- als auch lastgerecht herzustellen und dabei Ausschussquoten aufgrund von Drapierfehlern sowie den Verschnitt zu senken. Implementing process chains for the automated manufacturing of 3D textile preforms based on the established industrial stamp forming technology is not economical for small- and medium-sized enterprises due to high investment costs for small batch sizes and variable geometries. The new process chain counteracts by manufacturing complex 3D preforms at low processing times, both textile- and load-conform, while reducing scrap rates from draping errors and offcut.
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Carneiro, J. O., A. P. Samantilleke, P. Parpot, F. Fernandes, M. Pastor, A. Correia, E. A. Luís, A. A. Chivanga Barros und V. Teixeira. „Visible Light Induced Enhanced Photocatalytic Degradation of Industrial Effluents (Rhodamine B) in Aqueous Media Using TiO2Nanoparticles“. Journal of Nanomaterials 2016 (2016): 1–13. http://dx.doi.org/10.1155/2016/4396175.
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In recent years, new textile materials have been developed through the use of nanotechnology-based tools. The development of textile surfaces with self-cleaning properties has a large combined potential to reduce the environmental impact related to pollution. In this research work, three types of textiles substrates (cotton, Entretela, and polylactic acid (PLA)) were functionalized with titanium dioxide nanoparticles (TiO2) using chemical and mechanical processes (padding). During the functionalization process, two different methods were used, both of which allowed a good fixation of nanoparticles of TiO2on textile substrates. The samples were examined for morphology and for photocatalytic properties under visible light irradiation. A study aimed at evaluating the effect of pH of the aqueous solution of TiO2nanoparticles was performed in order to promote interaction between TiO2and the dye solution rhodamine B (Rh-B). The TiO2nanoparticles were characterized by X-ray diffraction (XRD). The measurement of the zeta potential of the TiO2nanoparticle solution proved to be always positive and have low colloidal stability. Chromatography (HPLC and GC-MS) analyses confirm that oxalic acid is the intermediate compound formed during the photodegradation process.
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Trumsina, Eva, Zane Zelca und Silvija Kukle. „POLY(VINYL ALCOHOL) AND POLY(VINYL ALCOHOL) /ZINC OXIDE COMPOSITE NANOFIBRE WEBS: QUALITY CONTROL WITH CONDUCTOMETER“. Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference 3 (15.06.2017): 316. http://dx.doi.org/10.17770/etr2017vol3.2597.
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In the market a wide variety of products are find that contains/releases metal nanoparticles, therefore topical become researches on it impacts on the environment and human health. In the textile industry important step is the development of testing methodology to monitor the quantity of nanoparticles that get into the environment from nanoparticles containing textile materials. In the study analyzed the method based on the use of conductometer for textiles testing with nano-size metal oxides content to determine the persistence of nanoparticles/ions in the water after textile soaking/washing. Compared results acquired in the experiments with nanofibre webs manufactured by electrospinning from pure polyvinyl alcohol (PVA) and PVA/ZnO composite. The nanofibre webs were soaked in distilled water and obtained samples of water tested with conductometer. The results of the experiments confirm that measurements taken with the conductometer are fairly stable and repeatable; the equipment is suitable for measurements in distilled water for nanoparticles/ions detection. The measurements of the solution’s specific electric conductance allows to pinpoint the nanoparticles/ions concentration, but for this purpose, must be created the database that contains the resources needed for the calculations and methodology for sample preparation.
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Peng, Huisheng. „(Invited) High-Performing Fibre Batteries at a Scalable Production“. ECS Meeting Abstracts MA2022-02, Nr. 5 (09.10.2022): 574. http://dx.doi.org/10.1149/ma2022-025574mtgabs.
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Fibre batteries are pioneering as flexible power solutions because they can be woven into textiles. Textile batteries offer a convenient and seamless way to power future wearable electronics. However, current fibre batteries are only centimetres long because longer fibre batteries are difficult to produce and they are thought to have significantly higher internal resistances that compromise electrochemical performance. Here, we show our discovery that internal resistance of fibre battery has a hyperbolic cotangent function relationship with fibre length, where it firstly decreases before leveling off as length increases. Systematic studies confirm this is true for different fibre batteries. We thus produce metres of high-performing fibre lithium-ion batteries via an optimised industrial process. Our mass-produced fibre batteries had high certified energy density based on the total weight of a lithium-cobalt-oxide/graphite full battery including packaging. Over 80% capacity can be maintained after bending for 100,000 cycles, indicating high flexibility. We show fibre batteries woven into safe and washable textile by industrial rapier loom can wirelessly charge a cellphone or power a health management jacket integrated with fibre sensors and textile display.
Dissertationen zum Thema "Confort textile"
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Kaleem, ullah Hafiz Muhammad. „Développement de fibres bicomposantes innovantes pour le textile de confort thermique“. Electronic Thesis or Diss., Centrale Lille Institut, 2022. http://www.theses.fr/2022CLIL0034.
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Cette étude s'inscrit dans le cadre du projet européen Interreg entre la Haute de France et la Belgique. Le projet s'appelle Photonitex.L'objectif de ce projet est de développer un textile intelligent de régulation thermique personnelle qui contrôle dynamiquement la température de la peau. Ce travail a été réalisé en collaboration entre le Centre Européen des Textiles Innovants (CETI) et l'Ecole Nationale Supérieure des Arts et Industries Textiles (ENSAIT).L'objectif de cette thèse est de développer une fibre bi-composant pour un textile de confort thermique. La revue de la littérature a été faite pour sélectionner les matériaux polymères les plus appropriés qui sont couramment utilisés dans l'industrie textile. De plus, sur la base de la revue de la littérature, la conception des fibres trilobées bicomposantes a été finalisée pour réaliser le textile de confort thermique dynamique. De plus, les matériaux polymères utilisés doivent présenter une différence hydrophile pour obtenir les propriétés thermiques dynamiques des tissus. Le matériau intérieur de cette fibre trilobée bicomposant doit être plus hydrophile que le matériau extérieur. PA6 et PA6-6 ont été sélectionnés comme noyau hydrophile et matériau extérieur hydrophobe en PET pour les filaments bicomposants trilobés. Cependant, PA6 et PA6-6 sont incompatibles et non miscibles au PET. L'enjeu majeur pour obtenir les fibres bicomposants recherchées est d'acquérir une adhérence suffisante à l'interface pour éviter le pré-clivage ou la séparation entre ces deux matériaux polymères. Afin d'améliorer leur miscibilité à l'interface, PA12 a été ajouté dans PA6 et PA6-6 à 5, 10, 15 % en poids via un procédé de mélange de polymères. les matériaux polymères jouent un rôle important. Afin de sélectionner les matériaux les plus appropriés pour la fibre bicomposant trilobée, des études rhéologiques ont été menées sur des mélanges purs et polymères à l'aide d'un rhéomètre capillaire. De plus, les propriétés hydrophiles de chaque polymère et de leurs mélanges ont également été testées sur des tissus tricotés avec des mesures d'angle de contact et de mèche. Pour évaluer l'effet du PA12 sur l'adhérence interfaciale du PET et du PA6, des fibres bicomposants PET/PA6 gaine/cœur ont été produites via un procédé de filage à l'état fondu et l'adhérence interfaciale a été étudiée par des techniques (test de traction, analyse thermique mécanique dynamique (DMTA), diffraction des rayons X à grand angle (WAXD), calorimétrie différentielle à balayage (DSC) et microscope électronique à balayage (SEM)). Sur la base des résultats obtenus à partir des techniques mentionnées ci-dessus, la composition la plus appropriée a été produite en fibres bicomposantes trilobées pour les tissus de confort thermique. Des études de simulation ont également été réalisées à l'aide du logiciel Compuplast 3D FEM pour optimiser les paramètres du processus de filage à l'état fondu et produire des fibres bicomposantes trilobées.Le textile fabriqué à partir de ces fibres bicomposantes innovantes montrera un phénomène d'auto-actionnement autonome, auto-responsabilisé et adaptatif à l'environnement. Cela contribuera à atténuer les consommations d'énergie plus élevées des systèmes de chauffage, de refroidissement et de ventilation intérieurs conventionnels et, à terme, à minimiser les consommations d'énergie globales et les problèmes climatiquesThis study is part of Interreg European Project between Haute de France and Belgium. The project is called Photonitex. The aim of this project is to develop a personal thermal regulation intelligent textile that dynamically controls skin temperature. This work was done in collaboration between Centre Européen des Textiles Innovants (CETI) and School National Superior of Textile Arts and Industries (ENSAIT).The objective of this thesis is to develop a bicomponent fibers for thermal comfort textile. The literature review was done to select the most suitable polymer materials that are commonly used in textile industry. In addition, based on the literature review, the design of the trilobal bicomponent fibers was finalized to realize the dynamic thermal comfort textile. Moreover, used polymer materials must exhibit hydrophilic difference to achieve the dynamic thermal properties in fabrics. The inner material of this bicomponent trilobal fiber must be more hydrophilic than the outer material. PA6 and PA6-6 were selected as hydrophilic core and PET hydrophobic outer material for trilobal bicomponent filaments. However, PA6 and PA6-6 are incompatible and immiscible to PET. The major challenge to achieve the desired bicomponent fibers is to acquire a sufficient adhesion at the interface to avoid the pre-splitting or separation between these two polymer materials. In order to improve their miscibility at the interface PA12 was added in PA6 and PA6-6 at 5, 10, 15% wt % via polymer compounding process. In order to produce trilobal bicomponent filament via coextrusion melt spinning process, rheological behavior of the used polymer materials play an important role. To select the most suitable materials for trilobal bicomponent fiber, rheological studies were conducted on pure and polymer blends using capillary rheometer. In addition, hydrophilic properties of each polymer and their blends were also tested on knitted fabrics with contact angle and wicking measurements. To evaluate the effect of PA12 on PET and PA6 interfacial adhesion, bicomponent PET/PA6 sheath/core fibers were produced via melt spinning process and interfacial adhesion was investigated through techniques (tensile test, dynamic mechanical thermal analysis (DMTA), Wide Angle Xray Diffraction (WAXD), Differential scanning calorimetry (DSC), and Scanning Electron Microscope (SEM)). Based on the obtained results from the above mentioned techniques, the most suitable composition was produced in trilobal bicomponent fibers for thermal comfort fabrics. Simulation studies were also performed using Compuplast 3D FEM software to optimize the melt spinning process settings and produce trilobal bicomponent fibers.The textile made out of such innovative bicomponent fibers will show a self-actuation phenomenon are autonomous, self-empowered, and adaptive to the environment. This will help to mitigate the higher energy consumptions by conventional indoor heating, cooling, and ventilation systems and eventually minimizes the global energy consumptions and climate issues
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Bedek, Gauthier. „Elaboration et conception d’une structure textile auto-rafraichissante“. Thesis, Lille 1, 2010. http://www.theses.fr/2010LIL10191/document.
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L’objectif de cette étude est de concevoir une structure textile auto-rafraîchissante. Le premier objectif consiste à définir le cahier des charges du produit. Après un état de l’art sur l’ensemble des technologies existantes, il a été mis en évidence qu’aucune ne correspond à la définition de textile intelligent auto-rafraichissant. Après une réflexion sur la cette notion, il a été proposé de développer une étoffe absorbant l’énergie du corps lors de l’apparition des phénomènes évaporatoires cutanés.Après une étude sur l’ensemble des matériaux à stockage d’énergie, il a été étudié les propriétés physico-chimiques des matériaux absorbant l’énergie par dissolution avec l’eau. Parmi ceux-ci les polyols, et en particulier le xylitol a été retenu pour être intégré au sein d’une matrice textile. A partir des propriétés particulières du xylitol, il a été mis au point une méthode d’encapsulation par polymérisation interfaciale visant à la formation d’un réseau de poly(urée-uréthane). Ainsi, il est proposé de protéger le xylitol par une membrane microporeuse assurant les transferts d’humidité et bloquant l’actif. L’étude de l’influence des paramètres de synthèse montre qu’il est possible de modifier à la fois la morphologie, la structure chimique, et le taux d’actif encapsulé. Il a été retenu une synthèse de microcapsules possédant une enthalpie de dissolution à 35°C de 124,5 J.g-1.A partir du mode de transfert particulier des microparticules vis-à-vis de leur environnement, celles-ci sont greffées sur différentes matrices textiles. La mesure de l’enthalpie de dissolution par calorimétrie de mélange a mis en évidence l’action de l’actif lors de la présence d’eau. De plus, la modélisation physiologique a permis d’apporter des données plus précises sur le comportement de l’étoffe vis-à-vis des réactions thermophysiologiques engagées. L’ensemble de ces résultats visent à prouver l’efficacité du refroidissement sur la sensation thermique en environnement chaud ou lors d’une activité intenseThe objective of this study is to design a self-refreshing textile structure. The first objective is to define the specifications of the product. After a state of the art on all existing technologies, it was revealed that none can correspond to the definition of a self-refreshing smart textile. It is proposed to develop an energy-absorbing material of the body at the onset of cutaneous evaporative phenomena.After a study of all materials which can store energy, it is studied the physico-chemical properties of materials absorbing the energy by dissolution with water. Among these polyols, especially xylitol is selected to be integrated within a fabric. From the properties of xylitol, it is developed a process of encapsulation by interfacial polymerization to form a network of poly (urea-urethane). Thus, it is proposed to protect xylitol by a microporous shell that ensures the transfer of moisture. The influence of synthesis parameters shows that it is possible to alter both the morphology, chemical structure, and the rate of encapsulated xylitol. He is chosen a synthesis of microcapsules having an enthalpy of dissolution at 35 ° C of 124.5 J.g-1. From the mode of transfer of particular microparticles against their environment, the microparticles are grafted onto different knitting fabrics. The measurement of the enthalpy of mixing with water revealed the action of dissolution. Furthermore, physiological modelling has led to give us precise data on the behaviour of the material against thermophysioloy reactions. All these results are intended to demonstrate the effectiveness of cooling on thermal sensation in hot environment or during intensive activity
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Marolleau, Adeline. „Étude des mécanismes d’interaction sous-vêtement/peau pour concevoir des textiles innovants en optimisant le confort au porté“. Thesis, Lille 1, 2019. http://www.theses.fr/2019LIL1I004.
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L'objectif de cette étude est de comprendre, analyser et documenter les mécanismes hydriques d’interaction sous-vêtement/ peau en régime transitoire. Aucun appareil ne permet d'étudier les transferts hydriques en dynamique à travers les textiles en prenant en compte l'effet du microclimat; lame d'air présente entre la peau et le textile. Un banc de mesure est réalisé afin de répondre à ce problème. Ce dispositif permet de discriminer les échantillons textiles en fonction de la nature chimique des fibres. La vitesse de transfert des molécules de vapeur d'eau lors de la désorption et le temps précis où débute ce phénomène apportent des informations sur la gestion hydrique des textiles. En parallèle, une étude à l'échelle de la fibre, par l'utilisation du DVS (Dynamic Vapor Sorption), mesure la quantité d'eau emmagasinée et relarguée par les textiles. Les résultats modélisés permettent de connaître, à un taux d'humidité donné, les mécanismes d'intéraction eau-fibres mis en jeu. L'ensemble des méthodes développées dans cette étude apporte des éléments pour comprendre les résultats obtenus lors des tests au porté; et plus précisément sur la capacité des étoffes à assécher ou à maintenir une certaine humidité à la surface cutanéeThe objective of this study is to understand, analyze and document the hydric mechanisms of undergarment/skin interaction in a transient regime. No apparatus makes it possible to study dynamic water transfers through textiles taking into account the effect of the microclimate; the air gap between the skin and the textile. A measuring bench is being built to solve this problem. Thanks to this device, it is possible to discriminate textile samples according to the chemical nature of the fibres. The transfer rate of water vapour molecules during desorption and the precise time at which this phenomenon begins provide information on the water management of textiles. In parallel, a fibre-scale study, using DVS (Dynamic Vapor Sorption) test, measures the amount of water stored and released by textiles. The modelled results allow us to know, at a given humidity level, the water-fibre interaction mechanisms involved. All the methods developed in this study provide elements to understand the results obtained during wear tests; and more precisely on the ability of fabrics to dry out or maintain a certain humidity on the skin surface
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Bahrar, Myriam. „Contribution au développement et à l’analyse d’une enveloppe de bâtiment multifonctionnelle dans le cadre de l’optimisation du confort dans l’habitat“. Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEE001/document.
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Le secteur du bâtiment recèle un fort potentiel d’amélioration de l'efficacité énergétique et de réduction de l’empreinte écologique. Dans cette optique, l’enveloppe du bâtiment joue un rôle important pour relever le défi de la transition énergétique. En effet, une bonne conception de l’enveloppe contribue efficacement à réduire la consommation d’énergie tout en réduisant les émissions de CO2 associés. Cela s’accompagne notamment d’une démarche de développement de nouveaux matériaux et principes constructifs. Ce projet de thèse s’inscrit dans ce cadre en proposant un nouveau matériau composite, qui porte sur l’association de deux matériaux innovant : composite textile mortier (TRC) et matériaux à changement de phase (MCPs). L’objectif de cette combinaison est de contribuer au développement d’éléments de façades multifonctionnelles permettant d’allier performances énergétiques, mécaniques et environnementales. Le but de notre étude est de caractériser en premier lieu, les propriétés mécaniques et thermiques de ces composites puis, d’évaluer l’impact des MCPs sur le confort thermique intérieur pour différentes configurations. Pour atteindre ces objectifs, nous avons adopté une démarche expérimentale et numérique multi échelle. Une campagne expérimentale à l’échelle du laboratoire et in-situ a été menée. En parallèle, nous avons développé un modèle numérique de paroi multicouche, couplé à un modèle de bâtiment. Enfin, nous avons exploité ce couplage pour réaliser une optimisation multicritère à base d’algorithmes génétiquesThe building sector has a great potential to improve energy efficiency and reduce the greenhouse gas emissions. Improvements to the building envelope and Innovations in building materials have the potential to achieve sustainability within the built environment. This PhD thesis focuses on the development of multifunctional façade elements in order to optimize the building energy consumption while maintaining an optimal indoor human thermal comfort. The proposed solution consist of using passive storage by means of phase change materials associated with alternative construction materials such as textile reinforced concrete (TRC). The aim of the study is to characterize mechanical and thermal properties of TRC composites and to evaluate the effect of PCMs on indoor thermal comfort. To meet these objectives, experimental devices have been set up for the characterization (at the component scale and in situ) of the mechanical and thermal behaviour of different TRC panels. In parallel, we have developed a numerical model for the prediction of wall temperature profiles. Finally, a multi-objective optimization of the façade elements is carried out using genetic algorithms to determine the better combinations able to combine the energy performance with the mechanical performance
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Morel, Aude. „Gestion des transferts thermiques et hydriques au sein d’une structure multicouche textile : développement d’une membrane pour application EPI“. Thesis, Lille 1, 2014. http://www.theses.fr/2014LIL10124/document.
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L'objectif de cette étude est d'élaborer une membrane thermosensible permettant une perméabilité à la vapeur d'eau contrôlée pour améliorer le confort et la sécurité des sapeurs-pompiers. Plusieurs membranes à base de polyuréthane segmenté ont été synthétisées. L'influence du type de polyol utilisé et sa longueur, et de la quantité de segments rigides a été étudiée. Deux types de mécanisme apparaissent selon la structure chimique du polymère, i.e. une modification en masse et une modification de surface. Celles-ci changent les propriétés de diffusion de l'humidité à travers la membrane. Ces membranes ont ensuite été complexées sur un textile pour renforcer la tenue mécanique, en vue de la confection de la couche entre le sous-vêtement et la veste des sapeurs-pompiers. Ce procédé modifie peu les propriétés des membranes et les produits obtenus semblent présenter une perméabilité à la vapeur d'eau contrôlée en fonction de la températureThis study aims at developing a thermosensitive membrane allowing the water vapor to cross with a function of the temperature to enhance the comfort and the safety of firefighters. Membranes with different chemical structure were synthesized from segmented polyurethane. The influence of the polyol type and its length, and the hard segment content was studied. Two kinds of mechanisms were identified depending on the chemical structure as a bulk modification and a surface modification, that change moisture management properties. Afterwards, membranes were pressed on a textile for higher mechanical properties. The purpose of the final product is to be made inside the firefighter’s personal protective equipment, between the underwear and the jacket. The systems membrane-textile keep the properties of the membrane and present controlled water vapor permeability with the function of the temperature
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Fabris, Jonas Pedro. „Conforto térmico na indústria têxtil“. Florianópolis, SC, 2003. http://repositorio.ufsc.br/xmlui/handle/123456789/85041.
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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Civil.Made available in DSpace on 2012-10-20T14:48:39Z (GMT). No. of bitstreams: 1 207175.pdf: 1853926 bytes, checksum: fab97abed24e40330a331a9b029bcc7f (MD5)
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Koehl, Ludovic Zeng Xianyi. „Optimisation de la qualité et du confort des produits textiles par exploitation de données physiques et de la connaissance humaine“. Villeneuve d'Ascq : Université des sciences et technologies de Lille, 2007. https://iris.univ-lille1.fr/dspace/handle/1908/1014.
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Reproduction de : Habilitation à diriger des recherches : Sciences physiques. Automatique et informatique industrielle : Lille 1 : 2006.N° d'ordre (Lille 1) : 545. Titre provenant de la page de titre du document numérisé. Bibliogr. p. 82-85. Liste des publications et communications.
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Armand, Anne. „Le texte du conflit dans le théâtre de Marguerite de Navarre“. Paris 10, 1985. http://www.theses.fr/1985PA100053.
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Armand, Anne. „Le Texte du conflit dans le théatre de Marguerite de Navarre“. Lille 3 : ANRT, 1985. http://catalogue.bnf.fr/ark:/12148/cb37594462p.
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Viallon, Maud. „Réalisation et caractérisation de membranes polymères microstructurées capables de moduler leurs propriétés de réflexion dans le domaine du moyen infrarouge : application aux textiles pour le confort thermique“. Thesis, Lille 1, 2017. http://www.theses.fr/2017LIL10105.
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L’objectif de cette thèse est la fabrication de membranes polymères pouvant être complexées à un textile pour améliorer le confort thermique ressenti. Celles-ci doivent être capables de moduler dynamiquement leurs propriétés optiques dans le moyen infrarouge (MIR) en fonction de leur environnement.La première partie de ce travail présente les notions théoriques liées au confort thermique et mécanismes physiques de transferts hydrique et thermique à travers les membranes textiles. Un état de l’art permet d’identifier les technologies existantes. Il introduit le concept des cristaux photoniques et leur application dans le MIR. Un cahier des charges pour la conception d’une membrane polymère structurée utilisant le principe des cristaux photoniques pour moduler l’interaction du rayonnement thermique humain est établi.La seconde partie de ce travail décrit la méthode de simulation FDTD utilisée pour prédire les propriétés optiques de membranes micro-structurées en fonction de leur géométrie. Une première réalisation en silicium polycristallin a permis de valider le calibrage du modèle numérique et le protocole de caractérisation infrarouge. Le procédé de fabrication utilise les technologies de salle blanche issues de la microélectronique et des microsystèmes.La dernière partie de ce travail est consacrée à l’étude FDTD de membranes polymères microstructurées à partir du modèle ‘in-silico’ calibré. Elle permet de définir des paramètres géométriques permettant de moduler la réflexion des infrarouges ayant une longueur d’onde entre 5 et 15 microns. Un procédé de fabrication est développé qui permet de réaliser des membranes structurées autosupportées aux dimensions appropriéesThe goal of this thesis is the manufacturing of polymer membranes that can be complexed to a textile to improve the thermal comfort felt. They must be able to dynamically modulate their optical properties in the mid-infrared (MIR) according to the environmental conditions.The first part of this work presents the theoretical notions related to thermal comfort and both physical mechanisms hydric and thermal transfers through the textile membranes. A state of the art makes it possible to identify the existing technologies. The concept of photonic crystals and their application in the field of infrared medium are presented. This part ends with the establishment of specifications for the design of a structured polymer membrane using the principle of photonic crystals to modulate the interaction of human thermal radiation.The second part of this work describes the method of finite differences in time domain simulation (FDTD) used to predict the optical properties of micro-structured membranes as function of their geometric characteristics. A first realization in polycrystalline silicon authorizes the validation of the numerical model calibration as well as the protocol of the infrared characterization. The manufacturing process uses cleanroom technologies from microelectronics and microsystems.The last part of this work is devoted to the study by FDTD of microstructured polymer membranes from the previously calibrated 'in-silico' model. This study makes it possible to define geometrical parameters able to modulate the reflection of the infrared having a wavelength between 5 and 15 microns. A manufacturing process is developed which makes it possible to realize self-supporting structured membranes to the appropriate dimensions
Bücher zum Thema "Confort textile"
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Expert, Group Meeting on the Impact of the Peace Process on Selected Sectors (1997 Amman Jordan). Proceedings of the Expert Group Meeting on the Impact of the Peace Process on Selected Sectors, Amman, 23-25 June 1997. [Amman: ESCWA, 1998.
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Pricope, Mihaela. Start LR. Manual de limba romana pentru cetatenii straini. Editura Universitara, 2020. http://dx.doi.org/10.5682/9786062811471.
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Manualul START LR se adreseaza cetatenilor straini care studiaza limba romana si este conceput pentru nivelul A1 conform Cadrului European Comun de Referinta pentru Limbi Straine. Cartea contine 10 unitati tematice care ajuta la fixarea cunostintelor de baza de gramatica cat si la insusirea unui vocabular util in situatii reale de viata cum ar fi: la secretariat, in taxi, la doctor, la cumparaturi, etc. Manualul de fata vizeaza dobandirea competentelor de comunicare orala si scrisa in contexte variate si contine texte scrise si audio pentru practicarea intelegerii unui fragment. El poate fi utilizat de catre profesorii de limba romana ca limba straina sau pentru studiu individual.
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Triandafyllidou, Anna, Hrsg. Global Governance from Regional Perspectives. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198793342.003.0001.
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The aim of this book is to investigate and confront the cultural and geopolitical understandings of global governance in different regions of the world. The main research questions addressed in this book are: How is global governance understood in different regions of the world? What normative and political challenges does the concept of global governance and the emerging regimes of global governance institutions raise in different parts of the world? Is there something like a regional texture of global governance that builds upon regional cultural, social, historical, political, and/or institutional features and characteristics? Chapter 1 places the book in its historical context of the early twenty-first century, provides working definitions, and discusses the contested nature of global governance, thus clarifying the analytical framework. Lastly, it offers an example of how cultural perspectives and their power connotations can be disguised and become ‘invisible’ in the theory and practice of global governance.
Buchteile zum Thema "Confort textile"
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Le Magueresse, Romain, Frédéric Giraud, Fabrice Casset, Anis Kaci, Brigitte Desloges und Mikael Colin. „Preliminary Design of a Flexible Haptic Surface“. In Haptics: Science, Technology, Applications, 207–15. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-06249-0_24.
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AbstractThis paper presents the preliminary development of a flexible haptic surface in order to produce texture rendering on a large conformable area. For this purpose, Haptic Pixels vibrating at ultrasonic frequencies are actuated by piezoelectric elements and implanted on a flexible matrix. The design leads to square glass plates of 10 $$\times $$ × 10 mm$$^2$$ 2 with a thickness of 500 $$\upmu $$ μ m, actuated by PZT ceramics with a thickness of 200 $$\upmu $$ μ m and a radius of 2.5 mm bonded on a 100 $$\upmu $$ μ m thick PEEK film. Electromechanical characterizations validate the design. The PEEK film between two pixels is exploited to separate them, to obtain the flexibility of the surface and to create an area of friction reduction with a stationary wave. Haptic evaluations are carried out to confirm the performances of the approach on a Haptic Pixel.
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Decourt, Pierre. „Discussion du texte de Emmanuelle Chervet“. In Le conflit psychique, 79. Presses Universitaires de France, 2005. http://dx.doi.org/10.3917/puf.dano.2005.01.0079.
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Ribas, Denys. „À propos du texte de Marie-France Dispaux“. In Le conflit psychique, 157. Presses Universitaires de France, 2005. http://dx.doi.org/10.3917/puf.dano.2005.01.0157.
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Dreyfus, Sylvie. „Le conflit psychique. Discussion du texte de J.-F. Daumark“. In Le conflit psychique, 123. Presses Universitaires de France, 2005. http://dx.doi.org/10.3917/puf.dano.2005.01.0123.
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Edwards, Laura F. „Polly’s Yarn“. In Only the Clothes on Her Back, 21–38. Oxford University Press, 2022. http://dx.doi.org/10.1093/oso/9780197568576.003.0002.
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Americans conducted their lives with the presumption that everyone could make legal claims to textiles. This chapter explains that situation, exploring the customary practices that, by the time of the American Revolution, had cohered into legal principles, which allowed people without rights—even enslaved people and married women—to make claims to textiles in law, something they could not do with other forms of property. Those principles persisted in the new republic, adding value to textiles by turning them into a secure form of property for those whose legal status made such claims tenuous. Claims to textiles did not involve rights or confer rights. Yet, when draped in textiles, even those without rights assumed distinct legal forms that officials found impossible to ignore: textiles conferred legal power.
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Thouard, Denis. „Les conceptions du texte : un conflit d’interprétation“. In Sens et interprétation, 99–130. Presses universitaires du Septentrion, 2008. http://dx.doi.org/10.4000/books.septentrion.75193.
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Dobrescu, Radu, und Dan Popescu. „Image Processing Applications Based on Texture and Fractal Analysis“. In Applied Signal and Image Processing, 226–50. IGI Global, 2011. http://dx.doi.org/10.4018/978-1-60960-477-6.ch014.
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Texture analysis research attempts to solve two important kinds of problems: texture segmentation and texture classification. In some applications, textured image segmentation can be solved by classification of small regions obtained from image partition. Two classes of features are proposed in the decision theoretic recognition problem for textured image classification. The first class derives from the mean co-occurrence matrices: contrast, energy, entropy, homogeneity, and variance. The second class is based on fractal dimension and is derived from a box-counting algorithm. For the purpose of increasing texture classification performance, the notions “mean co-occurrence matrix” and “effective fractal dimension” are introduced and utilized. Some applications of the texture and fractal analyses are presented: road analysis for moving objective, defect detection in textured surfaces, malignant tumour detection, remote land classification, and content based image retrieval. The results confirm the efficiency of the proposed methods and algorithms.
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Roland, Fabien. „Chapitre 11 : Des textiles pour sportifs. Apport de la chimie pour améliorer confort et performances“. In La chimie et le sport, 239–54. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-0940-0-014.
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Roland, Fabien. „Chapitre 11 : Des textiles pour sportifs. Apport de la chimie pour améliorer confort et performances“. In La chimie et le sport, 239–54. EDP Sciences, 2020. http://dx.doi.org/10.1051/978-2-7598-0940-0.c014.
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Yao, Yousheng, Yuan Xie, Fangtian Ying, Haoran Wang, Zhihao Huang und Junpeng Zheng. „Digital-Bracers: A Design Process for an Interactive Monitoring Generative System That Helps People with Hand Movements“. In Frontiers in Artificial Intelligence and Applications. IOS Press, 2024. http://dx.doi.org/10.3233/faia240051.
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In the post-New Crown epidemic era, people need to face a period of physical recovery after being infected with New Crown, especially when there are frequent cases of deaths due to over-aggressive or excessive physical exercise after healing, or due to people’s concerns about safety hazards, or loss of interest and adherence to fitness due to exercising alone, among other problems. In this paper, we design a complete interactive monitoring generation system for wrist brace components, Digital-Bracers, which consists of both hardware and software. The hardware has integrated textile heart rate monitoring and integrated sensors in a three-lead configuration for a textile-based digital wrist brace that conforms to human comfort. The software is a visualized app with pulse rate, speed, and frequency, oscillation rhythm, content generation social connectivity, etc. The software and hardware are connected via WI-FI or Bluetooth. Through exploration of materials, ergonomics, and textile wrist guard construction, we designed an experimental process and tested Digital-Bracers to determine the system’s performance through peak heart rate detection and noise interference. The contribution of the Digital-Bracers Interactive Monitoring and Generation System is the ability to monitor one’s own health in real-time during hand exercise to avoid potential risks, while at the same time, The Digital-Bracers Interactive Monitoring System contributes to the real-time monitoring of one’s health during hand movements to avoid potential risks, and to the generation of a variety of different sounds to bring a sense of fulfillment and enjoyment to the hand movements.
Konferenzberichte zum Thema "Confort textile"
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„Efectos de las tramas textiles sobre la resistencia a la tracción y confort textil en tejidos estructurados impresos en 3D“. In XV Congreso Iberoamericano de Ingeniería Mecánica. Universidad Nacional de Educación a Distancia (España), 2022. http://dx.doi.org/10.5944/bicim2022.146.
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Sarbu, Teodor. „Smart Textiles Based on Conductive Woven Structures“. In The 9th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2022. http://dx.doi.org/10.24264/icams-2022.i.7.
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We live in a knowledge-based society, which is facing an increasing impact of science and technology on all aspects of life through products, services and consumer needs. The field of functional textiles is an interdisciplinary field that incorporates science, technology and design, and its future lies in the potential to combine different technologies. Functional textiles will serve to improve the quality of life by increasing the well-being of society and could lead to significant savings for health and budget. The uniqueness and challenge of technical textiles lies in the need to understand and apply the principles of textiles science and engineering to provide the right solutions for the growing and varied demands of their applications in areas such as protective clothing, automotive textiles, geotextiles, agricultural textiles, medical textiles, textiles used for construction, specialized textiles for defense and military applications, etc. Woven fabrics of copper and stainless steel wires, because of their structural order and ability to bend and conform to the most desirable forms, offers a great opportunity to develop a new generation of multifunctional and interactive textiles. The term “Smart Textiles” refers to a wide range of studies and products that extend the functionality and usefulness of common fabrics.
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Popovschi, Liliana. „Posibilităţi de abordare a textelor dialectale din perspectiva teoriei coşeriene a variaţiei limbii“. In Filologia modernă: realizări şi perspective în context european. “Bogdan Petriceicu-Hasdeu” Institute of Romanian Philology, Republic of Moldova, 2021. http://dx.doi.org/10.52505/filomod.2021.15.35.
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Textele dialectale reprezintă surse valoroase pentru diverse cercetări privind limba română. Ele sunt deosebit de utile pentru studierea fenomenului variaţiei limbii, fiind ilustrative pentru cele trei mari tipuri de varietate care există în sincronie, conform teoriei coşeriene: varietatea diatopică, varietatea diastratică, varietatea diafazică. Deşi au fost utilizate, mai cu seamă, pentru relevarea diferenţelor teritoriale ale limbii, ele furnizează date importante şi pentru cercetările de sociolingvistică şi de stilistică a limbii. În realizarea concretă a limbii, surprinsă de textele dialectale, sincronia interferează cu diacronia, care este un alt tip de varietate glotică.
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Shah, Hamil, Abdullahi Inshaar, Chengzhe Zou, Shreyas Chaudhari, Saad Alharbi, Asimina Kiourti und Ryan L. Harne. „Multiphysics Modeling and Experimental Validation of Reconfigurable, E-Textile Origami Antennas“. In ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/detc2018-85603.
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Physical deformation mechanisms are emerging as compelling and simple ways to adapt radio frequency (RF) characteristics of antennas in contrast to digital steering approaches acting on topologically fixed antennas. Concepts of physical reconfigurability also enable exceptional capabilities such as deployable and morphing antenna arrays that serve multiple functions and permit compact transport with ease. Yet, the emergent concepts lack broad understanding of effective approaches to integrate conformal, electrically conductive architectures with high-compliance foldable frameworks. To explore this essential interface where electrical demands and mechanical requirements may conflict, this research introduces a new class of origami-based tessellated antennas whose RF characteristics are self-tuned by physical reconfiguration of the antenna shape. E-textile materials are used to permit large antenna shape change while maintaining electrical conductivity. Dipole and patch antennas are considered as conventional antenna platforms upon which to innovate with the e-textile origami concept. Multiphysics modeling efforts establish the efficacy of foldable antenna geometries for broad tailoring of the RF characteristics. Experiments with proof-of-concept antennas confirm the large adaptability of wave radiation properties enabled by the reconfiguration of the e-textile origami surfaces. The results suggest that e-textile antennas can be integrated into clothing and mechanical structures, providing a non-invasive way of quantifying deformation for a wide range of applications.
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Cristian, Irina, und Cristina Piroi. „CAD APPLICATIONS FOR COMPOUND WOVEN FABRICS“. In eLSE 2015. Carol I National Defence University Publishing House, 2015. http://dx.doi.org/10.12753/2066-026x-15-264.
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Woven fabrics consist of at least two sets of yarns (warp and weft) that are interlaced at right angles to each other. The woven structures that only contain two systems of yarns are called simple woven fabrics, while those that include at least 3 systems are considered compound structures. There are many structural variants of compound woven fabrics (double/triple/multiple compact structures, spacer fabrics etc.). The structural characteristics of each structure induce specific properties that enable them to be used in art and design applications, but also in industries such as engineering, aerospace, automotive, biomedical, leisure etc. Compound woven fabrics (principally produced by the multiple-warp weaving method) have long been used for the manufacturing of double and triple cloths for bags, webbings and carpets. Nowadays, due to superior mechanical properties, the use of compound woven fabrics as technical textiles and especially as a reinforcing medium for composites is becoming a popular choice. As a result, some of the CAD producers which were, until recently, mainly oriented towards developing software applications for simple woven fabric design, started to pay more attention to this subject offering performing software solutions for the design of compound woven structure. This paper presents the main CAD solutions available on the market in this field (TexGen, WiseTex, ScotWeave, 3D Weave) and focuses on the TexM software, a learning-oriented solution for compound woven fabrics design, created by researchers from Faculty of Textile-Leather and Industrial Management of Iasi, Romania. In comparison to the other aforementioned software, TexM makes use of a sectioning method to obtain a graphic representation of the weave structure in each layer. TexM is now used for some time and the excellent results of the students confirm the usefulness of this kind of educational software in understanding the structure of compound woven fabric.
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Tate, Jitendra S., Ajit D. Kelkar und Gary Beall. „Viscoelastic Effects on Fatigue Behavior of Braided Composites“. In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14091.
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Textile composites include woven, braided, and knitted fabrics. Textile composites are considered when out-of-plane properties are also important. Textile composites generally have better dimensional stability, out-of-plane properties, and impact and delamination resistance. The natural conformability of biaxial braids makes them more cost competitive than woven fabric. These material systems are gaining popularity, in particular for the small business jets, where FAA requires take off weights of 5670 kgf or less. The vacuum assisted resin transfer molding (VARTM) process has proven to be low in cost compared to resin transfer molding (RTM). Thus, the combination of biaxial braids and the VARTM process is likely to considerably reduce overall costs. Before the braids can be confidently used in the primary structures, it is necessary to understand the performance of biaxial braided composites under various loading conditions and especially under fatigue. This will reduce uncertainty and hence reduce the factor of safety in the design This research addresses viscoelastic effects on fatigue behavior of carbon/epoxy braided composites. It is observed that braided composites exhibit creep and stress relaxation. Further it is observed that frequency in axial fatigue loading plays dominant role in fatigue life, but very little role in fatigue failure mechanisms. Rate of stiffness degradation is greatly affected by frequency. These entire phenomena such as creep, stress relaxation, frequency effect, and dependency of stiffness on rate of loading indicate the viscoelastic behavior of braided composites. In this research different tests were performed to confirm viscoelastic behavior of braided composites. Axial tension-tension fatigue tests were conducted at different frequencies and stiffness degradation was studied.
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Caleyo, F., V. Venegas, J. M. Hallen, J. E. Araujo und T. Baudin. „On the Influence of Crystallographic Texture on HIC“. In 2006 International Pipeline Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/ipc2006-10530.
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This work presents the results of ongoing investigations aimed at determining the influence of crystallographic texture, microtexture and mesotexture on hydrogen induced cracking (HIC) in low carbon pipeline steels. HIC samples of two steels were investigated using X-ray diffraction texture measurement and Orientation Imaging Microscopy (OIM™). The first steel is a low strength API 5L X46 retired from service and the second is a low sulfur ASTM A106 steel. The results of this work confirm the feasibility of improving the HIC resistance of pipeline steels through crystallographic texture control and grain boundary engineering. Controlled rolling schedules can be proposed in order to induce a crystallographic texture dominated by the {112}//ND, {111}//ND and {011}//ND fibres. Such a texture is expected to decrease significantly the steel susceptibility to HIC by: (i) reducing the number of available transgranular and intergranular low resistance cleavage paths provided by the {001}//ND oriented grains, (ii) reducing the probability of crack coalescence and stepwise HIC propagation and (iii) increasing the number of high resistance intergranular crack paths provided by coincidence site lattice (CSL) and low angle boundaries with the lowest possible energy.
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De la Trinidad, C. A. „Exploring the effects of repetitive corrugation and strengthening on alloy A5083 using X-ray diffraction techniques“. In Superplasticity in Advanced Materials. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/97816449025615-42.
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Abstract. Aluminum alloys are highly versatile materials and their behavior can be improved by severe plastic deformation. X-Ray Diffraction (XRD) is a key tool for studying the microstructural changes and the evolution of the crystalline structure during this process. This combination of processing techniques helped the development of high-performance aluminum alloys for various industrial applications. The objective was to determine a heat treatment to promote a new crystallographic texture of AA5083 under a severe plastic deformation process. The determination of this thermal ratio, as well as the crystallographic characterization of the material, were studied through XRD, thermo-diffraction, Rietveld analysis, and pole figures (PF). The results showed that using a partial recrystallization heat treatment combined with the RCS process favors obtaining a characteristic recrystallization and deformation texture (cube and brass component). Furthermore, the evolution of diffraction peaks intensities at different temperatures confirm that recrystallization takes place during the process. Finally, the phases present in the A5083 alloy were determined by XRD.
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Vanhuysse, Sarah J. M., Eleonora P. Westebring-van der Putten, Wouter M. Bergmann Tiest und Imre Horva´th. „The Tactile Window: A Haptic Tool for Material Selection“. In ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/detc2010-28443.
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In this article a haptic tool for industrial designers is presented. The tool should aid them in material selection for product experience and fit in an advanced design studio: the Tangible Virtual Reality environment. A study of related work suggests that six touch sensations are essential in this context. A solution idea for multi-sensation feedback was developed and its intended behavior and functionalities defined. A first concept combines two of the relevant sensations: texture and warmth, the former displayed by a piezo-driven pin array and the latter by a peltier element acting as a heat pump. A simple experiment — matching displayed stimuli to real materials — was conducted to prove the feasibility of the concept. Experimental results confirm that the prototype gives the impression of a certain surface, but the absence of four relevant sensations limits the experience’s realism. However promising, these results confirm the desirability of further integration of touch sensations in one device.
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Dos Reis, Jorge. „Computer mimetics in visible performance: the late work of the Portuguese experimental poet Ernesto Melo e Castro“. In AHFE 2023 Hawaii Edition. AHFE International, 2023. http://dx.doi.org/10.54941/ahfe1004219.
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Ernesto Melo e Castro, Covilhã 1932–202, is a textile engineer and Portuguese artist, trained in Bradford. He dedicated is life to textile design and to the technical direction of textile engineering companies. At the same time, he developed research in the field of Brazilian concrete poetry and Portuguese experimental poetry; being a fundamental and very innovative author that used the computer in the last phase of its journey as an artist.His work is based on an ideographic structure where the visual composition, which uses exclusively typography, is based on the principle of the ideogram, where the general graphics of the piece provide the idea for the visual piece. Melo e Castro makes use of lyrics, lines, arrows and various symbols that depart from the conventional music agenda, approaching the notation practices of the authors of American experimental music.His later works, particularly ‘Interactive Sound Poetry’ makes use of a typeface not printed but drawn. Melo e Castro elaborates a capital letter register that mimics the homogeneity of typography. The gestural character of the lyrics shows a phonetic intensity that can be inferred from the writing itself, fixed in the score, where the rapidity of the gesture and the erasure are dominant characteristics. This score is based on a computer interactive creation around phonetics and sound, making use of a computer, keyboard and synthesizer with words amplified and where the user performs poetic sequences randomly as he presses the keys. The observer is faced with a set of words: 'freedom', 'love', 'action', 'chance' and 'peace', within a circle, functioning as reading pivots, providing combinations of graphically noted words.The user makes associations and sequences, learns as a musician learns a piece of computer music, producing conceptual chains of words and the associations will not necessarily be logical or grammatical, and can be casual and therefore produce new and unexpected meanings in the sound and conceptual plane. This piece, being neither singing nor speaking, fits within a mediation between singing and speaking, a technique systematized by Arnold Schoenberg, which constitutes one of the most important criteria in the sound character of the work, starting from a study of the basic phonetics of Portuguese.To confirm this research we are now carrying out an observation around the work ‘Negative Music’ that is not developed as in the works of John Cage in an appreciation of musical silence, although this fact seems at first sight evident. It is a piece for the eyes and not for the ears. The computer game of silence represents first of all a response to the paternal authority of Melo e Castro and a metaphor against the Salazar dictatorship in Portugal. With this in mind, it is first of all a semiotic poem of conceptual visuality; In a second analysis this poem becomes a performative interpretation. In addition to its functional aspect, Melo e Castro’s notation presents a strong graphic and typographic bent, with a notorious concern to produce an object of visual characteristics where there is a balance between its constituents.
Berichte der Organisationen zum Thema "Confort textile"
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Crisosto, Carlos, Susan Lurie, Haya Friedman, Ebenezer Ogundiwin, Cameron Peace und George Manganaris. Biological Systems Approach to Developing Mealiness-free Peach and Nectarine Fruit. United States Department of Agriculture, 2007. http://dx.doi.org/10.32747/2007.7592650.bard.
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Peach and nectarine production worldwide is increasing; however consumption is flat or declining because of the inconsistent eating quality experienced by consumers. The main factor for this inconsistent quality is mealiness or woolliness, a form of chilling injury that develops following shipping periods in the global fruit market today. Our research groups have devised various postharvest methods to prolong storage life, including controlled atmosphere and delayed storage; however, these treatments only delay mealiness. Mealiness texture results from disruption of the normal ripening process involving disassembly of cell wall material, and creates a soft fruit texture that is dry and grainy instead of juicy and smooth. Solving this problem is a prerequisite for increasing the demand for fresh peach and nectarine. Two approaches were used to reveal genes and their associated biochemical processes that can confer resistance to mealiness or wooliness. At the Volcani Center, Israel, a nectarine cultivar and the peach cultivar (isogenetic materials) from which the nectarine cultivar spontaneously arose, and at the Kearney Agricultural Center of UC Davis, USA, a peach population that segregates for quantitative resistance to mealiness was used for dissecting the genetic components of mealiness development. During our project we have conducted research integrating the information from phenotypic, biochemical and gene expression studies, proposed possible candidate genes and SNPs-QTLs mapping that are involved in reducing peach mealiness susceptibility. Numerous genes related to ethylene biosynthesis and its signal transduction, cell wall structure and metabolism, stress response, different transcription factor families were detected as being differentially accumulated in the cold-treated samples of these sensitive and less sensitive genotypes. The ability to produce ethylene and keep active genes involved in ethylene signaling, GTP-binding protein, EIN-3 binding protein and an ethylene receptor and activation of ethyleneresponsive fruit ripening genes during cold storage provided greater resistance to CI. Interestingly, in the functional category of genes differentially expressed at harvest, less chilling sensitive cultivar had more genes in categories related to antioxidant and heat sock proteins/chaperones that may help fruit to adapt to low temperature stress. The specific objectives of the proposed research were to: characterize the phenotypes and cell wall components of the two resistant systems in response to mealiness- inducing conditions; identify commonalities and specific differences in cell wall proteins and the transcriptome that are associated with low mealiness incidence; integrate the information from phenotypic, biochemical, and gene expression studies to identify candidate genes that are involved in reducing mealiness susceptibility; locate these genes in the Prunus genome; and associate the genes with genomic regions conferring quantitative genetic variation for mealiness resistance. By doing this we will locate genetic markers for mealiness development, essential tools for selection of mealiness resistant peach lines with improved fruit storability and quality. In our research, QTLs have been located in our peach SNPs map, and proposed candidate genes obtained from the integrated result of phenotypic, biochemical and gene expression analysis are being identified in our QTLs as an approach searching for consistent assistant markers for peach breeding programs.
2
Neyedley, K., J. J. Hanley, P. Mercier-Langevin und M. Fayek. Ore mineralogy, pyrite chemistry, and S isotope systematics of magmatic-hydrothermal Au mineralization associated with the Mooshla Intrusive Complex (MIC), Doyon-Bousquet-LaRonde mining camp, Abitibi greenstone belt, Québec. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/328985.
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The Mooshla Intrusive Complex (MIC) is an Archean polyphase magmatic body located in the Doyon-Bousquet-LaRonde (DBL) mining camp of the Abitibi greenstone belt, Québec. The MIC is spatially associated with numerous gold (Au)-rich VMS, epizonal 'intrusion-related' Au-Cu vein systems, and shear zone-hosted (orogenic?) Au deposits. To elucidate genetic links between deposits and the MIC, mineralized samples from two of the epizonal 'intrusion-related' Au-Cu vein systems (Doyon and Grand Duc Au-Cu) have been characterized using a variety of analytical techniques. Preliminary results indicate gold (as electrum) from both deposits occurs relatively late in the systems as it is primarily observed along fractures in pyrite and gangue minerals. At Grand Duc gold appears to have formed syn- to post-crystallization relative to base metal sulphides (e.g. chalcopyrite, sphalerite, pyrrhotite), whereas base metal sulphides at Doyon are relatively rare. The accessory ore mineral assemblage at Doyon is relatively simple compared to Grand Duc, consisting of petzite (Ag3AuTe2), calaverite (AuTe2), and hessite (Ag2Te), while accessory ore minerals at Grand Duc are comprised of tellurobismuthite (Bi2Te3), volynskite (AgBiTe2), native Te, tsumoite (BiTe) or tetradymite (Bi2Te2S), altaite (PbTe), petzite, calaverite, and hessite. Pyrite trace element distribution maps from representative pyrite grains from Doyon and Grand Duc were collected and confirm petrographic observations that Au occurs relatively late. Pyrite from Doyon appears to have been initially trace-element poor, then became enriched in As, followed by the ore metal stage consisting of Au-Ag-Te-Bi-Pb-Cu enrichment and lastly a Co-Ni-Se(?) stage enrichment. Grand Duc pyrite is more complex with initial enrichments in Co-Se-As (Stage 1) followed by an increase in As-Co(?) concentrations (Stage 2). The ore metal stage (Stage 3) is indicated by another increase in As coupled with Au-Ag-Bi-Te-Sb-Pb-Ni-Cu-Zn-Sn-Cd-In enrichment. The final stage of pyrite growth (Stage 4) is represented by the same element assemblage as Stage 3 but at lower concentrations. Preliminary sulphur isotope data from Grand Duc indicates pyrite, pyrrhotite, and chalcopyrite all have similar delta-34S values (~1.5 � 1 permille) with no core-to-rim variations. Pyrite from Doyon has slightly higher delta-34S values (~2.5 � 1 permille) compared to Grand Duc but similarly does not show much core-to-rim variation. At Grand Duc, the occurrence of Au concentrating along the rim of pyrite grains and associated with an enrichment in As and other metals (Sb-Ag-Bi-Te) shares similarities with porphyry and epithermal deposits, and the overall metal association of Au with Te and Bi is a hallmark of other intrusion-related gold systems. The occurrence of the ore metal-rich rims on pyrite from Grand Duc could be related to fluid boiling which results in the destabilization of gold-bearing aqueous complexes. Pyrite from Doyon does not show this inferred boiling texture but shares characteristics of dissolution-reprecipitation processes, where metals in the pyrite lattice are dissolved and then reconcentrated into discrete mineral phases that commonly precipitate in voids and fractures created during pyrite dissolution.