Tesis sobre el tema "Textile Electrode"
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Backe, Carin. "Enhancing textile electrode performance : Regulating moisture management through textile structure". Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-12389.
Texto completoTaji, Bahareh. "Reconstruction of ECG Signals Acquired with Conductive Textile Eletrodes". Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/26303.
Texto completoEuler, Luisa. "Impedance and Stimulation Comfort of Knitted Electrodes for Neuromuscular Electrical Stimulation (NMES) : Influence of electrode construction and pressure application to the electrode". Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-23896.
Texto completoLee, Graham. "An investigation into the feasibility of the integration of microwave circuitry into a woven textile". Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/13560.
Texto completoJafari, Ehsan. "Novel Approaches in Functional Electrical Stimulation for Rehabilitation : Development, Analysis, and Optimization". Electronic Thesis or Diss., Lyon, École normale supérieure, 2024. http://www.theses.fr/2024ENSL0008.
Texto completoThis thesis aims to overcome the limitations of functional electrical stimulation (FES) through a multifaceted novel approach that concentrates on developing transcutaneous electrodes, stimulation strategies, and biomechanical optimization perspectives. The first study investigates the effectiveness of garment-embedded textile electrodes, used with a moisturizing lotion, against conventional self-adhesive hydrogel electrodes. The evaluation encompasses aspects such as stimulation comfort, temporal consistency, efficiency, and electrical impedance behavior under isometric conditions. Participants in the study underwent tests with both electrode types, evaluating parameters like motor threshold intensity, burning sensation intensity, and maximum tolerable intensity. The results indicate that textile electrodes, when supplemented with lotion, perform comparably to hydrogel electrodes in terms of comfort, consistency, and efficiency. The next study investigates the impact of spatially distributed sequential stimulation (SDSS) at high and moderate intensities on reducing fatigue in individuals with spinal cord injury. The study, focusing on the quadriceps muscle group, found that moderate-intensity SDSS is significantly more effective than high-intensity SDSS. Additionally, a case study was conducted to assess the differences in power generation and fatigue levels between FES cycling using SDSS and a single electrode setup. This involved stimulating the paralyzed quadriceps muscles of four participants over multiple days during motor-assisted FES cycling. The results indicated that SDSS not only generated more power compared to the single electrode setup but did so without significantly impacting fatigue levels. The last study focuses on the optimization of the cycling biomechanical properties and stimulation pattern to achieve maximum output power with minimum applied stimulation. In this work, an easy-to-use and precise muscle model in conjunction with Jacobian-based torque transfer functions was adopted to determine the optimal seating position, trunk angle, crank arm length, and stimulation intervals. Furthermore, the impact of muscle force-velocity factor in finding the optimal seating position and stimulation intervals was investigated. The simulation models showed the trivial effect of the force-velocity factor on the resulting optimal seating position of six healthy simulated subjects. We believe that the contributions of this thesis will increase the efficacy of FES as a rehabilitation technique
Ekhagen, Sebastian. "Stability of electron acceptor materials for organic solar cells : a work function study of C60/C70 derivatives and N2200". Thesis, Karlstads universitet, Institutionen för ingenjörsvetenskap och fysik (from 2013), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-72727.
Texto completoMarquez, Juan Carlos. "On the Feasibility of Using Textile Electrodes for Electrical Bioimpedance Measurements". Licentiate thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-3607.
Texto completoThesis Supervisors: Kaj Lindecrantz and Fernando Seoane
Sponsorship:
Mexican CONACYT
Jenkins, L. "Development of environmental scanning electron microscopy for textile hydration studies". Thesis, University of Cambridge, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.605085.
Texto completoAwad, Hernández Fahmi. "Desafíos de la capa física para el monitoreo y control remoto de pacientes". Tesis, Universidad de Chile, 2016. http://repositorio.uchile.cl/handle/2250/142483.
Texto completoEn la actualidad existe una gran necesidad de monitorear pacientes en forma remota dado que hay capacidades limitadas en centros médicos, tanto de profesionales como de instrumental e insumos. Más allá de esto, respecto al electrocardiograma en particular, se utiliza un método en el cual se coloca doce electrodos en el cuerpo del paciente, además de filtrar los datos con máquinas bastante grandes, lo que se traduce en incomodidad para el sujeto y una maquinaria costosa que puede ser reemplazada. Este trabajo se enfoca en el desarrollo de un sistema de amplificación y filtrado simplificado para un electrocardiograma utilizando el método de Einthoven, y en la implementación de electrodos de una composición química diferente, denominados PEDOT:PSS. Se trabaja con éstos como reemplazo de los comúnmente utilizados dado que son hidrofílicos, lavables y no producen irritación, por lo cual son considerados un avance respecto al ámbito invasivo de la detección. La amplificación sin ruido es una parte crítica en el diseño del circuito, por lo tanto es imperativo obtener el filtrado necesario. Se diseñan circuitos para la inversión de voltaje necesaria, el amplificador y los filtros pasa bajos de 150 Hz, pasa altos de 0.1 Hz y notch de 50 Hz a utilizar. Los resultados obtenidos se pueden organizar de la siguiente forma: inicialmente se obtiene una señal alimentando con 3 y 5 V, con y sin filtro notch, en una prueba con sensores comunes, midiendo con osciloscopio Rigol. Luego se analiza el mismo circuito alimentado con baterías y medido con el DSO Nano V3 y finalmente se examina con un electrodo PEDOT:PSS. Se opta por una alimentación independiente ya que se disminuye el ruido y se tiene un sistema aislado de la red. Se describe la construcción de los nuevos electrodos y se presentan los experimentos realizados con éstos. Se concluye por medio de una prueba de concepto que es posible obtener un sistema ECG no invasivo, pero que al tener una fuente dependiente de la red eléctrica existe una alta filtración de ruido de 50 Hz. La señal obtenida con el circuito y el electrodo PEDOT:PSS es satisfactoria y similar a la representación con electrodos convencionales, alimentando con un voltaje independiente de la red. Se indica los trabajos futuros respecto a esta memoria.
ACHILLI, ANDREA. "Conception, development and evaluation of polymer-based screen-printed textile electrodes for biopotential monitoring". Doctoral thesis, Università degli studi di Genova, 2019. http://hdl.handle.net/11567/977988.
Texto completoMarquez, Ruiz Juan Carlos. "Sensor-Based Garments that Enable the Use of Bioimpedance Technology : Towards PersonalizedHealthcare Monitoring". Doctoral thesis, KTH, Medicinska sensorer, signaler och system (MSSS) (Stängd 20130701), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-107493.
Texto completoQC 20121213
Bashir, Tariq. "Conjugated Polymer-based Conductive Fibers for Smart Textile Applications". Doctoral thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-3649.
Texto completoThesis for the Degree of Doctor of Philosophy to be presented on March 08, 2013, 10.00 in KA-salen, Kemigården 4, Chalmers University of Technology, Gothenburg
Nazari, Asl Sara [Verfasser], Meinhard [Akademischer Betreuer] Schilling y Peter [Akademischer Betreuer] Werning. "Development of a non-contact EEG hat using textile capacitive electrodes / Sara Nazari Asl ; Meinhard Schilling, Peter Werning". Braunschweig : Technische Universität Braunschweig, 2020. http://d-nb.info/1206334347/34.
Texto completoGismera, García Isaac. "System implementation of functional characterization of textiles electrodes for ECG measurements Software & Hardware components integration". Thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-20103.
Texto completoBergman, Henrik Dan. "Increasing the Writing Resolution for Electro-hydrodynamic 3D-Printing : by Active Steering of e-jet". Thesis, Uppsala universitet, Mikrosystemteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-393068.
Texto completoChen, Yixin. "Electron diffraction analysis of amorphous Ge2Sb2Te5". Thesis, University of Oxford, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.669987.
Texto completoMORAIS, ALINE V. de. "Avaliação da toxicidade e remoção da cor de um efluente têxtil tratado com feixe de elétrons". reponame:Repositório Institucional do IPEN, 2015. http://repositorio.ipen.br:8080/xmlui/handle/123456789/23903.
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Dissertação (Mestrado em Tecnologia Nuclear)
IPEN/D
Instituto de Pesquisas Energéticas e Nucleares - IPEN-CNEN/SP
Saba, Rita. "Caractérisation et conception de tags RFID-UHF dédiés aux produits textiles". Thesis, Aix-Marseille, 2013. http://www.theses.fr/2013AIXM4783.
Texto completoThis thesis is part of a collaboration between the company Tagsys and IM2NP, under the PACID-TEXTILE project. The aim of the thesis is to create a robust UHF RFID tag antenna that can be easily and discreetly integrated into textile products.The idea is to design two antennas electromagnetically coupled and adapted for selected chips. Both antennas are designed to facilitate the coupling between them. The first antenna is packaged in a robust material in order to protect the chip from laundry cycles. The second antenna is made up by electro-thread. The first part of the work is to characterize the packaged antenna and packaging material. The second part is to measure the conductivity of the used thread, to establish the most accurate model possible. Tests of wire resistance are also made. Toughness of each wire is also tested.The third part deals with the antenna design. The tags are designed to have a minimum range of 4m. They have to resist deformation and stacking. These tags are subjected to various tests to determine their performance. Using resources available in the laboratory IM2NP (RFID platform), a "Benchmarking " is carried on different tags to find the best that meet the requirements of the specifications
Ezzahar, Samira. "Electro-extraction des cations en solution diluée par l'association de membranes et textiles échangeurs d'ions". Montpellier 2, 1996. http://www.theses.fr/1996MON20272.
Texto completoO'Harrow, Amber Joy Wood. "Words for a wordless world". Thesis, University of Iowa, 2010. https://ir.uiowa.edu/etd/867.
Texto completoLuo, Wenchen. "Excitations avec texture de spin et de pseudospin dans le graphène". Thèse, Université de Sherbrooke, 2014. http://hdl.handle.net/11143/5442.
Texto completoKylberg, Gustaf. "Automatic Virus Identification using TEM : Image Segmentation and Texture Analysis". Doctoral thesis, Uppsala universitet, Avdelningen för visuell information och interaktion, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-217328.
Texto completoHammami, Samiha. "Étude de dégradation des colorants de textile par les procédés d'oxydation avancée : application à la dépollution des rejets industriels". Phd thesis, Université de Marne la Vallée, 2008. http://tel.archives-ouvertes.fr/tel-00740155.
Texto completoPinheiro, Alessandro de Sá. "Avaliação da toxicidade e genotoxicidade dos corantes azo reativos Remazol Preto B e Remazol Alaranjado 3R e da eficácia da radiação com feixe de elétrons na redução da cor e efeitos tóxicos". Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-02032012-135231/.
Texto completoThe textile industries play an important role in national and global economy. But, their activities are considered potentially polluting. The use of large volumes of water and the production of colored wastewater with high organic matter are among the main issues raised, especially during the stage of dyeing and washing of the textile process. The reactive azo dyes are the main colors used in the industry for dyeing of cotton in Brazil and worldwide. Because of its low setting and variations in the fiber production process, about 30% of the initial concentration used in the dyeing baths are lost and will compose the final effluent. These compounds have a low biodegradability, are highly soluble in water and therefore are not completely removed by conventional biological processes. In addition, other processes do not promote degradation but the tranference to solid environment. The dyes discarded without treatment in the water body can cause aesthetic modifications, alter photosynthesis and gas solubility, as well as being toxic and genotoxic. The main objectives of this study were to evaluate the toxicity and genotoxicity of two reactive azo dyes (Remazol Black B - RPB and Remazol Orange 3R R3AR) and the percentage of color and toxicity reduction after the use of electron beam radiation. The acute toxicity assays performed with Vibrio fischeri, Daphnia similis and Biomphalaria glabrata showed different response patterns for dyes. The different chemical forms of dyes were slightly toxic to Vibrio fischeri and only the RPB dye (vinylsulphone) was toxic (EC5015min = 6,23 mg L-1). In tests with Daphnia similis, the dye RPB was slightly toxic in its patern form, sulphatoethylsulphone, (CE5048h = 91,25 mg L-1) and showed no toxicity in other chemical forms. However, the RA3R dye was toxic to the dafnids and the vinylsulphone form very toxic (EC5048h = 0,54 mg L-1). No toxicity was observed in Biomphalaria glabrata assays. Chronic toxicity was assessed with the organism Ceriodaphnia dubia and the NOEC and OEC values of RPB dye (sulphatoethylsulphone) were 12.5 and 25 mg L-1, respectively. After hydrolysis of the dye (vinylsulphone and hydroxyethylsulphone) was shown to increase the values obtained from the NOEC ans OEC. There was no chronic effect for the R3AR dye and its chemical forms to C. dubia. The comet assay adapted to hemocytes of Biomphalaria glabrata was used to assess the genotoxicity of the dyes. The RPB dye was genotoxic at highest concentrations (1 and 2 g L-1), with quantitative values of DNA damage equal to 117 and 112 and the R3AR dye was not genotoxic. The use of radiation with electron beams have proven effective in removing the color dyes. With a dose of 10 kGy a reduction of 97.64% and 96.8% for R3AR and RPB, respectively, was achievied. Possibly, the color removal was mainly due to the interaction of reactive species such as hydroxyl radicals generated in the radiolysis of water after the radiation beam of electrons. After radiation of the RPB dye a dose of 10 kGy reduced 59.52 % of the acute toxicity measured with Vibrio fischeri. For the other doses there was no significant reduction, as well as with Daphnia similis, where the values of EC5048h obtained were smaller than the non-irradiated dye. The R3AR dye showed better decreased toxicity after radiation when compared with the RPB, with reductions of 82.95% (V. fischeri) and 71.26% (D. similis) with 10 kGy.
Hamdany, Nowfal al [Verfasser]. "Texture and stress characterization of a Copper Tube by neutron, synchrotron and electron diffraction / Nowfal Al-Hamdany". Clausthal-Zellerfeld : Universitätsbibliothek Clausthal, 2015. http://d-nb.info/1078228248/34.
Texto completoWoerner, Rachel Anna. "Development of cryopreparation methods and improved staining techniques for transmission electron microscopy of wool". Thesis, Queensland University of Technology, 2002.
Buscar texto completoOng, Hannah Chien Leing. "Virus recognition in electron microscope images using higher order spectral features". Thesis, Queensland University of Technology, 2006. https://eprints.qut.edu.au/16186/1/Hannah_Chien_Leing_Ong_Thesis.pdf.
Texto completoOng, Hannah Chien Leing. "Virus recognition in electron microscope images using higher order spectral features". Queensland University of Technology, 2006. http://eprints.qut.edu.au/16186/.
Texto completoLOW, MARJORIE. "Estudo do desenvolvimento da textura durante a recristalização primária de aços ferríticos por difração de raios X e difração de elétrons retroespalhados". reponame:Repositório Institucional do IPEN, 2006. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11449.
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Tese (Doutoramento)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
Lacson, Carmina y Alice Johansson. "Undersökning av lämpligt tryck att tillämpa i medicinska sensoriska plagg : Vilket tryck mot huden krävs för tillförlitliga signaler från textila sensorer". Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-26576.
Texto completoTo relieve and ease a small part of the healthcare from work overload and help patients with allergies to glue used to attach the standard sensors, a sensor-equipped wearable garment could be used. The wearable garment could be used to monitor a patient´s values during the day and should be easy for the patient to use themselves at home and comfortable to use every day, or for a patient who is allergic to the glue usually used to attach the sensors. To make the sensors on the sensor-equipped garment work the sensors must sit with pressure against the body to get readable and useful measurement. The pressure from the sensors around the body can not be too tight if it gets too uncomfortable. Therefore it is important to find what pressure that is comfortable enough for the patient to use everyday but still get good enough readings from the measuring devise to be used to monitor the patient´s values. This study looks into what pressure that the participants perceive as comfortable to use on an everyday basis. In this study the pressure is measured on eleven different participants, the pressure was measured at different times and when the participants performed different movements too document the changes in the pressure at movement to find what pressure the participants perceive as comfortable enough for everyday use. This study shows that the pressure perceived as comfortable varies between participants and that the pressure change during movement. It also shows that static position do not affect the quality of the signals from the heart at the used pressures.
SERNA, MARILENE M. "Estudo comparativo da analise de macrotextura pelas tecnicas de difracao de raios X e difracao de eletrons retroespalhados". reponame:Repositório Institucional do IPEN, 2002. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11013.
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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
Vafaee, Maedeh. "Conception, développement et caractérisation des fibres spécifiques activées (composite nanoweb) pour le traitement des rejets de l'industrie textile". Thesis, Mulhouse, 2019. http://www.theses.fr/2019MULH3062.
Texto completoIn this research, at first, a new catalyst was synthesized by a new combustion method and it was also characterized and applied in a photo-catalytic reactor to degrade the organic compounds. Then, these photocatalysts were immobilized on the surface of nonwovens of polyamide nano fibers obtained by the electro-spinning process using a semi-industrial machine. Then, the mechanical behaviors of polyamide (PA) nano-fiber nonwovens were studied in the short and long term by tensile and creep test. This allowed on the one hand to evaluate finely the properties of nonwovens and on the other hand to model their behavior on average of analog models. The generalized Kelvin-Voigt model has shown its robustness. They were installed on the reactor wall in order to have a stainless steel fixed bed reactor and to avoid the disadvantages of a heterogencous system. The solution analysis results showed us a favorable degradation of organic compounds and intermediate products in a closed circulation system. Pressurizing the reactor confirmed, as shown in the mechanical tests, that the mechanical properties of the doped fibers were sufficient to withstand the mechanical stresses associated with the flow of the Jiquid
Bastos, da Silva Fanta Alice. "Characterization of the microstructure, grain boundaries and texture of nanostructured electrodeposited CoNi by use of electron backscatter diffraction (EBSD)". Göttingen Cuvillier, 2007. http://d-nb.info/991032845/04.
Texto completoBastos, da Silva Fanta Alice. "Characterization of the microstructure, grain boundaries and texture of nanostructured electrodeposited CoNi by use of Electron Backscatter Diffraction (EBSD) /". Göttingen : Cuvillier, 2008. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=017078787&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Texto completoAnnan, Kofi Ahomkah. "Effect of hot working characteristics on the texture development in AISI 430 and 433 ferritic stainless steel". Diss., University of Pretoria, 2012. http://hdl.handle.net/2263/25436.
Texto completoDissertation (MSc)--University of Pretoria, 2012.
Materials Science and Metallurgical Engineering
unrestricted
Shim, Sohie. "Analytical techniques for differentiating huacaya and suri alpaca fibers". Connect to this title online, 2003. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1064202091.
Texto completoDocument formatted into pages; contains x, 108 p. Includes bibliographical references (p. 102-108). Abstract available online via OhioLINK's ETD Center; full text release delayed at author's request until 2006 Sep. 22.
Bouafia-Chergui, S. "Dégradation des colorants textiles par procédés d'oxydation avancée basée sur la réaction de Fenton. Application à la dépollution des rejets industriels". Phd thesis, Université de Marne la Vallée, 2010. http://tel.archives-ouvertes.fr/tel-00740134.
Texto completoFERREIRA, PATRICIA C. "Remoção de corantes de efluente textil por zeólita de cinzas de carvão modificada por surfactante e avaliação dos efeitos tóxicos". reponame:Repositório Institucional do IPEN, 2015. http://repositorio.ipen.br:8080/xmlui/handle/123456789/25302.
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Tese (Doutorado em Tecnologia Nuclear)
IPEN/T
Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
Waters, Brent R. "Mechanical Properties of Inconel 718 Processed Using Electron Beam Free Form Fabrication (EBF3)". BYU ScholarsArchive, 2018. https://scholarsarchive.byu.edu/etd/6717.
Texto completoMarashi, Seyed Pirooz Hoveida. "Transmission electron microscopy study of nanostructured Nd-Fe-B hard magnetic materials". Thesis, University of Sheffield, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366102.
Texto completoLeroy, Joël. "Caractérisation et qualification de cokes industriels : relations entre texture poreuse, microtexture, sites actifs et carboxyréactivité". Vandoeuvre-les-Nancy, INPL, 1991. http://docnum.univ-lorraine.fr/public/INPL_T_1991_LEROY_J.pdf.
Texto completoThis work was intended to connect the carboxyreactivity of 5 cokes samples with their physico-chemical properties. Porous textures, microtextures and active sites were studied with respect to the gasification extent. Analysis of the results leads to concordant and complementary conclusions. The more microporous a sample the more reactive. However mesoporosity gives access to the reactants. The simultaneous presence of micro-and of mesoporosity results in a high reactivity. This agrees with the fact that the most reactive cokes exhibit a wide distribution of the sizes of M. O. Dormains. Variations of reactivity during gasification, whose mode is mainly diffusional, are linked to the alterations of the porosity. It was possible to compute the extent of internal and of external gasification. Microtexture gives informations about the presence of a microporosity and of active sites, mainly non accessible, therefore about “potential reactivity”. However “effective reactivity” depends on surface accessibility. Active sites were studied by TPD of surface oxides. The Active Surface Area (A. S. A. ) determined on raw cokes correlates well with their carboxyreactivity at 900° C. This is interpreted as follows : desorbed oxides from raw cokes originate in complexes formed on accessible sites during quenching, the carboxyreactivity studied at 900°C is related to accessible sites ; these two types of sites are likely to be not too different. So it seems possible to determine on a raw coke a feature relevant of its carboxyreactivity at 900°C
Morais, Aline Viana de. "Avaliação da toxicidade e remoção da cor de um efluente têxtil submetido ao tratamento com feixe de elétrons". Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/85/85131/tde-18052015-144706/.
Texto completoThe textile industry is among the main activities Brazil, being relevant in number of jobs, quantity and diversity of products and mainly by the volume of water used in industrial processes and effluent generation. These effluents are complex mixtures which are characterized by the presence of dyes, surfactants, metal sequestering agents, salts and other potentially toxic chemicals for the aquatic biota. Considering the lack of adequate waste management to these treatments, new technologies are essential in highlighting the advanced oxidation processes such as ionizing radiation electron beam. This study includes the preparation of a standard textile effluent chemical laboratory and its treatment by electron beam from electron accelerator in order to reduce the toxicity and intense staining resulting from CI. Blue 222 dye. The treatment caused a reduction in toxicity to exposed organisms with 34.55% efficiency for the Daphnia similis micro-crustacean and 47.83% for Brachionus plicatilis rotifer at a dose of 2.5 kGy. The Vibrio fischeri bacteria obtained better results after treatment with a dose of 5 kGy showing 57.29% efficiency. Color reduction was greater than 90% at a dose of 2.5 kGy. This experiment has also carried out some preliminary tests on the sensitivity of the D. similis and V. fischeri organisms to exposure of some of the products used in this bleaching and dyeing and two water reuse simulations in new textile processing after the treating the effluent with electron beam.
Jakubíček, Marek. "Nositelná anténa pro komunikaci v blízkosti lidského těla". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221243.
Texto completoBernier, Jeremy Scott. "Evolution and Characterization of Partially Stabilized Zirconia (7wt% Y2O3) Thermal Barrier Coatings Deposited by Electron Beam Physical Vapor Deposition". Digital WPI, 2002. https://digitalcommons.wpi.edu/etd-theses/826.
Texto completoChergui, Souâd. "Dégradation des colorants textiles par procédés d'oxydation avancée basée sur la réaction de Fenton : application à la dépollution des rejets industriels". Phd thesis, Université Paris-Est, 2010. http://tel.archives-ouvertes.fr/tel-00582374.
Texto completoMedy, Jean Rony. "Évaluation des effets de taille et d'architecture sur les propriétés mécaniques et électriques de fils composites métalliques cuivre/niobium fabriqués par déformation plastique sévère". Thesis, Poitiers, 2016. http://www.theses.fr/2016POIT2312/document.
Texto completoHigh strength and high conductivity Cu/Nb composites studied here are very good candidates for the design of magnets generating high pulsed magnetic fields (B ≥ 100T). They are fabricated by Accumulative Drawing and Bundling (ADB) and are constituted with a multi-scale Cu matrix embedding continuous Nb filaments that are distributed in a controlled manner. This study is performed within the framework of the METAFORES project (ANR-12-BS09-0002) aiming at assessing size and architecture effects on properties of these Cu/Nb conductors. The main purpose is therefore to characterize the microstructure and properties of these conductors at different stages of the fabrication process. Mechanical and electrical results show an increase in yield strength while maintaining adequate electrical conductivity. Global texture studies confirm three fiber texture components: two for the Cu matrix (<111> and <100>) and a single component <110 > for Nb. These three texture components are also observed at the local scale analysis (EBSD); however the volume fractions of the Cu components locally depend on the number of ADB cycles.In-situ deformation tests under neutrons reveal elasticplastic and purely elastic behaviors of the {111} Cu and {110} Nb grains family respectively, whatever the samples. However, for the {200} Cu grains family, mechanical behavior strongly depends on the number of ADB cycles. These results will feed the simulations conducted in the METAFORES project (Thesis of Tang Gu, ENSAM-Paris / Mines ParisTech)
Sojiphan, Kittichai. "Effects of Very High Power Ultrasonic Additive Manufacturing Process Parameters on Hardness, Microstructure, and Texture of Aluminum 3003-H18 Alloy". The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1418667794.
Texto completoVitero, Pérez Felipe Nicolás. "Aplicación de métodos de electro-generación de cloro activo y H2O2 al blanqueo de tejidos de algodón". Doctoral thesis, Universitat Politècnica de València, 2019. http://hdl.handle.net/10251/115486.
Texto completoPrevi al ennobliment tèxtil, els teixits de cotó són sotmesos a processos de preparació (desencolat, descruat i blanqueig) que aconsegueixen l'eliminació de les impureses presents a la superfície de la fibra. Aquest treball aborda l'estudi del procés de blanqueig de teixits de cotó cru y descruat, mitjançant tècniques electroquímiques. Per a açò s'han emprat metodologies basades en la electro-oxidació indirecta, concretament la electro-generació de clor actiu (O electrocloració) o de H2O2 (de vegades anomenada electro-peroxidació) en absència o presència de catalitzadors de ferro (procés electro-Fenton). En aquests mètodes, l'agent blanquejant es forma per l'electròlisi de precursors innocus (clorur en el cas de l'electro-cloració i oxigen dissolt en el cas del H2O2), evitant el transport, emmagatzematge i manipulació de substàncies perilloses i inestables, el que contribueix a millorar el control, reproduïbilitat i seguretat del procés. L'objectiu principal d'aquesta Tesi Doctoral és l'estudi de la influència de diferents variables d'electròlisi en l'evolució del grau de blanc, amb el fi de determinar el conjunt de condicions operacionals més adequat per a obtenir un grau de blanc acceptable, considerant-se amés les modificacions de l'estructura i composició química superficial, de la resistència mecànica dels teixits, i del dany químic de les fibres. Aquestes propietats s'han analitzat mitjançant espectroscòpia de fotoelectrons emesos per rajos X (XPS), espectroscòpia infraroja b transformada de Fourier amb accessori de reflectància total atenuada (FTIR-ATR), microscopi electrònic d'escombrat (SEM), assajos de tracció i mesura del grau de polimerització. De la morfologia dels teixits, la microscòpia SEM no revela alteracions significatives després dels tractaments de blanqueig mitjançant electró-generació de clor actiu. Els assajos de XPS revelen que la relació O/C va augmentant amb la durada de l'electròlisi. Aquest fet es deu a la oxidació/eliminació de impureses no cel·lulòsiques i fenòmens d'oxidació superficial, que impliquen un augment de la concentració relativa de grups funcionals del tipus C-O i C-OH. Al tractament 'ex situ', 'l'índex O/C augmenta linealment amb el temps de procés. Al tractament 'in situ' s'observa un augment brusc de la relació O/C a les fases primerenques de l'electròlisi i una evolució lineal posterior similar al tractament 'ex situ'. L'índex O/C es semblant al mesurat a teixits blanquejats químicament amb lleixiu i sensiblement inferior a l'assolit als processos de descruat alcalí o blanqueig químic amb peròxid. El FTIR ATR confirma que el tractament d'electro-cloració implica l'eliminació de constituents de ceres i greixos de la superfície de les fibres de cotó, material proteic i possiblement part de substàncies pèctiques i hemicel·luloses. El quocient entre la intensitat de la banda OH associada al sistema pont d'hidrogen i la intensitat de la banda de tensió C-H experimenta un augment similar a la relació O/C determinada per XPS. No s'ha aconseguit identificar cap pic de fotoemissió o banda vibracional que serveixi com a diagnòstic del contingut de matèria acolorida, ni s'ha aconseguit establir una correlació clara entre l'augment del grau de blanc del teixit i el canvi dels paràmetres quantitatius relatius a la composició superficial dels teixits de cotó.
Prior to the textile finishing, cotton fabrics are subjected to preparation processes (desizing, scouring and bleaching) in order to remove noncellulosic impurities present on the fiber surface. The present work deals with the study of the bleaching process of raw and scoured cotton fabrics by means of electrochemical techniques. To this end, methodologies based on indirect electro-oxidation have been used, namely the electro-generation of active chlorine (or electro-chlorination) or H2O2 (sometimes called electro-peroxidation) in the absence or presence of iron catalysts (electro-Fenton process). In these methods, the bleaching agent is formed by electrolysis of harmless precursors (chloride in the case of electro-chlorination and dissolved oxygen in the case of H2O2), thus avoiding the transport, storage and handling of hazardous and unstable substances, which contributes to improve the control, reproducibility and safety of the process. The main objective of this Doctoral Thesis is the study of the influence of different electrolysis variables on the evolution of the whiteness index, in order to determine the most suitable set of operational conditions to obtain an acceptable whiteness index, considering also the modifications of the structure and chemical composition of the surface, of the mechanical resistance of the cotton fabrics and the chemical damage of the fibers. These properties have been analyzed by X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy with attenuated total reflectance accessory (ATR-FTIR), scanning electron microscope (SEM), tensile tests and degree of polymerization. As to the morphology of the textile cotton fabric, SEM microscopy reveals no significant modifiations after the bleaching treatments by electro-generation of active chlorine. The XPS tests reveal that the O/C ratio increases with the duration of electrolysis. This is attributed to the oxidation/elimination of non-cellulosic impurities and superficial oxidation phenomena, which involve an increase in the relative concentration C-O and C-OH functional groups. In the 'ex situ' treatment, the O/C index increases linearly with the process time. In the 'in situ' treatment an abrupt increase in the O/C ratio in the early stages of electrolysis and a subsequent linear evolution similar to the 'ex situ' treatment are observed. The O/C index is similar to that measured in cotton fabrics treated with bleach, but it is significantly lower than those achieved in alkaline scouring or peroxide chemical bleaching processes. The ATR-FTIR confirms that the electro-chlorination treatment involves the elimination of constituents of waxes and fats from the surface of cotton fibers, together with proteins and possibly part of pectic and hemicellulosic substances. The ratio of the OH stretching intensity associated with the cellulose hydrogen-bonding system to the C-H stretching intensity undergoes an increase similar to the O/C ratio as determined by XPS. We could not find any any photoemission peak or vibrational band as a diagnostic signal of the content of colored matter; nor has it been possible to establish a clear correlation between the increase in the whiteness index of the bleached cotton fabrics and the change in the quantitative parameters relative to their surface composition.
Vitero Pérez, FN. (2018). Aplicación de métodos de electro-generación de cloro activo y H2O2 al blanqueo de tejidos de algodón [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/115486
TESIS
Varanytsia, Andrii. "Augmenting Electro-Optic and Optical Behavior of Cholesteric and Nematic Liquid Crystals". Kent State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=kent1532526040658373.
Texto completoHennequin, Didier. "Composition, structure et texture des fromages à pate molle : une analyse multidimensionnelle pour une approche scientifique de l'innovation". Vandoeuvre-les-Nancy, INPL, 1993. http://www.theses.fr/1993INPL001N.
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