http://hdl.handle.net/2117/3695 Sat, 25 May 2013 18:08:16 GMT 2013-05-25T18:08:16Z webmaster.bupc@upc.edu Universitat Politècnica de Catalunya. Servei de Biblioteques i Documentació no http://hdl.handle.net/2117/18544 Title: Self-video recording for the integration and assessment of generic competencies Authors: Masip Álvarez, Albert; Hervada Sala, Carme; Pàmies Gómez, Teresa; Arias Pujol, Antoni; Jaen Fernandez, Carles; Rodríguez Sorigué, M. Cristina; Romero Durán, David; Nejjari Akhi-Elarab, Fatiha; Álvarez del Castillo, María Dolores; Roca Lefler, Marta; Hernández Farràs, Jorge; Montferrer Liñan, Raul Abstract: This document presents the use of a self-video-recording service for the integration and assessment of certain generic competences (oral and written communication, teamwork and third (English) language) in all degree programs related to the Industrial area at the Terrassa School of Engineering (EET). The resulting service allows to carry out the assessment through active and collaborative learning methodologies using ICT as a support, becoming an educational resource where students are encouraged to evaluate their own activity, individually and in groups (co-evaluation), and with which the faculty can enhance certain sections of the syllabus while also evaluating generic competences. This paper outlines the rationale and design of the system based on self-recording-video that assists work on some generic competences. A preliminary experience has taken place and it has been carried out by volunteer students and some professors from the promoting team. It consisted of following all steps to obtain the video-recording as a result and fulfil the further assessment. Preparing the defence of the final project career, explaining the way a problem is faced are examples of use of the service endowed to assist the assessment of some generic competences. A good number of students and professors have participated in this preliminary experiment carried out on some subjects and in which oral effective communication will be assessed. A specific rubric for the assessment of generic competences has been used both for students and faculty. There is a summary of qualitative feedback from both students and instructors, and where several issues related to improving the self-assessment and self-video-recording system, are discussed. Finally, a survey is proposed, whose results will be helpful for its improvement. Tue, 02 Apr 2013 14:02:57 GMT http://hdl.handle.net/2117/18544 2013-04-02T14:02:57Z Masip Álvarez, Albert; Hervada Sala, Carme; Pàmies Gómez, Teresa; Arias Pujol, Antoni; Jaen Fernandez, Carles; Rodríguez Sorigué, M. Cristina; Romero Durán, David; Nejjari Akhi-Elarab, Fatiha; Álvarez del Castillo, María Dolores; Roca Lefler, Marta; Hernández Farràs, Jorge; Montferrer Liñan, Raul no This document presents the use of a self-video-recording service for the integration and assessment of certain generic competences (oral and written communication, teamwork and third (English) language) in all degree programs related to the Industrial area at the Terrassa School of Engineering (EET). The resulting service allows to carry out the assessment through active and collaborative learning methodologies using ICT as a support, becoming an educational resource where students are encouraged to evaluate their own activity, individually and in groups (co-evaluation), and with which the faculty can enhance certain sections of the syllabus while also evaluating generic competences. This paper outlines the rationale and design of the system based on self-recording-video that assists work on some generic competences. A preliminary experience has taken place and it has been carried out by volunteer students and some professors from the promoting team. It consisted of following all steps to obtain the video-recording as a result and fulfil the further assessment. Preparing the defence of the final project career, explaining the way a problem is faced are examples of use of the service endowed to assist the assessment of some generic competences. A good number of students and professors have participated in this preliminary experiment carried out on some subjects and in which oral effective communication will be assessed. A specific rubric for the assessment of generic competences has been used both for students and faculty. There is a summary of qualitative feedback from both students and instructors, and where several issues related to improving the self-assessment and self-video-recording system, are discussed. Finally, a survey is proposed, whose results will be helpful for its improvement. http://hdl.handle.net/2117/17290 Title: Comparison of the effects of corona and low pressure plasma on the release of caffeine from PA66 filaments Authors: Labay, Cédric Pierre; Canal Arias, José Ma; Navarro Sentanyes, Antonio; Canal Barnils, Cristina Abstract: Technical textiles for medical applications are a research expanding field. One of the added values of these materials can be suitable to contain and release active ingredients in a controlled manner. A possible alternative to obtain fabrics with controlled drug release properties could lie in the modification of fiber-active principle bonds, so that you get a proper release for each particular application. R & D currently developing drug delivery systems aims to achieve a controlled release of an active principle during a predetermined time. This is done in order to avoid the administration of several doses of drugs or cosmetic products and thus make the patient follow the therapy more easily. The influence of surface modification of fibers by low temperature plasma has been studied regarding the modification of the physical, chemical and topographical properties of the textile fibers. First studies evaluated the incorporation and release of anti-inflammatory and cosmetic drugs from different textile materials to evaluate the modulation of the drug release as the result of the surface modifications achieved by plasma treatment. The use of plasma technology to modulate the release of drugs is an original and innovative contribution. By altering the chemical bonds on the surface of textile fibers with plasma, the drug release kinetic profiles may be modified. Mon, 14 Jan 2013 09:53:44 GMT http://hdl.handle.net/2117/17290 2013-01-14T09:53:44Z Labay, Cédric Pierre; Canal Arias, José Ma; Navarro Sentanyes, Antonio; Canal Barnils, Cristina no Technical textiles for medical applications are a research expanding field. One of the added values of these materials can be suitable to contain and release active ingredients in a controlled manner. A possible alternative to obtain fabrics with controlled drug release properties could lie in the modification of fiber-active principle bonds, so that you get a proper release for each particular application. R & D currently developing drug delivery systems aims to achieve a controlled release of an active principle during a predetermined time. This is done in order to avoid the administration of several doses of drugs or cosmetic products and thus make the patient follow the therapy more easily. The influence of surface modification of fibers by low temperature plasma has been studied regarding the modification of the physical, chemical and topographical properties of the textile fibers. First studies evaluated the incorporation and release of anti-inflammatory and cosmetic drugs from different textile materials to evaluate the modulation of the drug release as the result of the surface modifications achieved by plasma treatment. The use of plasma technology to modulate the release of drugs is an original and innovative contribution. By altering the chemical bonds on the surface of textile fibers with plasma, the drug release kinetic profiles may be modified. http://hdl.handle.net/2117/16239 Title: New method for applying microcapsules in the spinning process Authors: Marsal Amenós, Félix Abstract: A new method has ben developed for applying the microcapsules in the spirming process, in aJJ those yaros made in ring spinning machines, wether short fibre or long fibre. The microcapsules were placed in the interstices of the yarn, before being communicated twist. Ihis allows solving the problem of permanencc of the effect provided by the active ingredients contained in the microcapsule, for functionality and use of textile garments, against repeated washing. The method is technical and industrial feasible. This has been demonstrated by the interest shown by an important manufacturer of textil e machinery for spinning. Ihe proposed method is valid fol' all types of fibres that are processed by the systems of carded corton, worsted, semí-worsted and woollen, when obtained in ring spinning machines. Ihe new method of application is suitable for alJ types of microcapsules, wich are curren tIy developed for use on textiles. Thu, 12 Jul 2012 10:16:46 GMT http://hdl.handle.net/2117/16239 2012-07-12T10:16:46Z Marsal Amenós, Félix no A new method has ben developed for applying the microcapsules in the spirming process, in aJJ those yaros made in ring spinning machines, wether short fibre or long fibre. The microcapsules were placed in the interstices of the yarn, before being communicated twist. Ihis allows solving the problem of permanencc of the effect provided by the active ingredients contained in the microcapsule, for functionality and use of textile garments, against repeated washing. The method is technical and industrial feasible. This has been demonstrated by the interest shown by an important manufacturer of textil e machinery for spinning. Ihe proposed method is valid fol' all types of fibres that are processed by the systems of carded corton, worsted, semí-worsted and woollen, when obtained in ring spinning machines. Ihe new method of application is suitable for alJ types of microcapsules, wich are curren tIy developed for use on textiles. http://hdl.handle.net/2117/13985 Title: The New textiles curriculum in accordance with Bologna: the spanish experience Authors: Marsal Amenós, Félix Abstract: This presentation has the aim to explain the way followed doing the new study plan in Engineering, Technology and Textile Design Degree studies, adapted to Bologna criteria, signed by the 29 member education secretaries states European Union. Nowadays they are already 46 countries those that have attached to this Bologna process and have taken the commitment to adapt his study plans to this European common platform. These studies are given at Engineering Terrassa School, from beginnings of the academic course 2009, by a very satisfactory results. Mon, 21 Nov 2011 11:30:41 GMT http://hdl.handle.net/2117/13985 2011-11-21T11:30:41Z Marsal Amenós, Félix no This presentation has the aim to explain the way followed doing the new study plan in Engineering, Technology and Textile Design Degree studies, adapted to Bologna criteria, signed by the 29 member education secretaries states European Union. Nowadays they are already 46 countries those that have attached to this Bologna process and have taken the commitment to adapt his study plans to this European common platform. These studies are given at Engineering Terrassa School, from beginnings of the academic course 2009, by a very satisfactory results. http://hdl.handle.net/2117/9797 Title: Nano-cotton fabrics with UV protection Authors: Paul, Roshan; Botet, José Maria; Casals Mercadal, Eudald; García Fernández, Lorena; Puntes, Víctor; Marsal Amenós, Félix; Palet Alsina, Daniel Abstract: In the present work, we have attempted nano-finishing of bleached as well as reactive dyed cotton fabrics with TiO2 nanoparticles. First of all, the cotton fabrics were pre-treated with a linking agent in the presence of a catalyst. After drying at high temperature, the fabrics were cured. This linking agent with two free carboxylic acid groups is able to bind both the cotton and TiO2. The first carboxylic acid group forms a covalent ester bond with a hydroxyl group of cellulose, while the second one can anchor TiO2 by electrostatic interaction. These pretreated cotton fabrics were further coated with aqueous TiO2 suspension, after sonicating. Both the anatase and rutile phases of TiO2, as well as the 3:1 and 1:3 mixtures were used in the study. After drying, the unbound TiO2 was washed out under sonication. Further, the samples were washed in cold water and air dried. In order to characterize the samples after incorporation of the nanoparticles, Scanning Electron Microscopy (SEM) was used to observe both the morphology and composition of the samples (before and after 10 home launderings). Transmision Electron Microscopy (TEM) was used to study the size, form and distribution of the nanoparticles and Atomic Force Microscopy (AFM) to observe the surface texture of the samples. Energy Dispersive X-ray Microanalysis (EDX) was used for the surface analysis through the interactions between the matter and electromagnetic radiation. It was found that the TiO2 nanoparticles were intact on cotton surface even after the launderings, showing good adhesion of the nanoparticles to the fabric surface. Further, the UPF values of the coated samples were also measured before and after launderings. It was found that even after the launderings, a high UPF value of 50+ was measured for all the samples, but rutile phase was found to be better than anatase phase. In this way, an industrial process is being developed for producing cotton fabrics of high UV protection Tue, 19 Oct 2010 09:58:22 GMT http://hdl.handle.net/2117/9797 2010-10-19T09:58:22Z Paul, Roshan; Botet, José Maria; Casals Mercadal, Eudald; García Fernández, Lorena; Puntes, Víctor; Marsal Amenós, Félix; Palet Alsina, Daniel no In the present work, we have attempted nano-finishing of bleached as well as reactive dyed cotton fabrics with TiO2 nanoparticles. First of all, the cotton fabrics were pre-treated with a linking agent in the presence of a catalyst. After drying at high temperature, the fabrics were cured. This linking agent with two free carboxylic acid groups is able to bind both the cotton and TiO2. The first carboxylic acid group forms a covalent ester bond with a hydroxyl group of cellulose, while the second one can anchor TiO2 by electrostatic interaction. These pretreated cotton fabrics were further coated with aqueous TiO2 suspension, after sonicating. Both the anatase and rutile phases of TiO2, as well as the 3:1 and 1:3 mixtures were used in the study. After drying, the unbound TiO2 was washed out under sonication. Further, the samples were washed in cold water and air dried. In order to characterize the samples after incorporation of the nanoparticles, Scanning Electron Microscopy (SEM) was used to observe both the morphology and composition of the samples (before and after 10 home launderings). Transmision Electron Microscopy (TEM) was used to study the size, form and distribution of the nanoparticles and Atomic Force Microscopy (AFM) to observe the surface texture of the samples. Energy Dispersive X-ray Microanalysis (EDX) was used for the surface analysis through the interactions between the matter and electromagnetic radiation. It was found that the TiO2 nanoparticles were intact on cotton surface even after the launderings, showing good adhesion of the nanoparticles to the fabric surface. Further, the UPF values of the coated samples were also measured before and after launderings. It was found that even after the launderings, a high UPF value of 50+ was measured for all the samples, but rutile phase was found to be better than anatase phase. In this way, an industrial process is being developed for producing cotton fabrics of high UV protection http://hdl.handle.net/2117/9684 Title: New Development in the core yarns manufacture Authors: Marsal Amenós, Félix; Palet Alsina, Daniel; Riera Torres, Miquel Antoni; Serra, A.; Indrie, Liliana; Ratiu, Mariana Abstract: A new mechanism for the regulation of feeding tension of elastic filaments has been developed, in cooperation with a reputable manufacturer of textile machinery, to obtain “core spun” yarns. This device reduces, of a very significant form, the coefficient of variation of the elongation of the yarn and, consequently, the fabrics obtained with this yarns are more regular appearance. This mechanism is fundamental when the new spools of T-400, with diameter and weight superiors to the standard size, are processed. Thu, 14 Oct 2010 09:00:44 GMT http://hdl.handle.net/2117/9684 2010-10-14T09:00:44Z Marsal Amenós, Félix; Palet Alsina, Daniel; Riera Torres, Miquel Antoni; Serra, A.; Indrie, Liliana; Ratiu, Mariana no A new mechanism for the regulation of feeding tension of elastic filaments has been developed, in cooperation with a reputable manufacturer of textile machinery, to obtain “core spun” yarns. This device reduces, of a very significant form, the coefficient of variation of the elongation of the yarn and, consequently, the fabrics obtained with this yarns are more regular appearance. This mechanism is fundamental when the new spools of T-400, with diameter and weight superiors to the standard size, are processed. http://hdl.handle.net/2117/8710 Title: Lag alternance in unidirectional coupled semiconductor lasers Authors: Tiana Alsina, Jordi; García López, J.H.; Torrent Serra, Maria del Carmen; García Ojalvo, Jordi Thu, 02 Sep 2010 07:36:32 GMT http://hdl.handle.net/2117/8710 2010-09-02T07:36:32Z Tiana Alsina, Jordi; García López, J.H.; Torrent Serra, Maria del Carmen; García Ojalvo, Jordi no http://hdl.handle.net/2117/8396 Title: Aspect prediction of the knitted fabrics from the yarn properties Authors: Marsal Amenós, Félix; Palet Alsina, Daniel; Indrie, Liliana; Ratiu, Mariana Abstract: The textile technologist knows that the prediction of the aspect of a finished knitted fabric, by the parameters of yarn evenness, does not agree, often, with the reality. There are fabrics, in the market, with irregular aspect, made with yarns in which we have detected few faults. The conventional criteria that are considered in the evenness measuring equipments for the faults detection in the yarns are very limited.In this paper a new evenness of mass index is proposed, denominated deviation rate DR, that, according to it is demonstrated in the experimental stage, it follows an excellent statistical correlation with the aspect of the knitted fabrics. Mon, 26 Jul 2010 10:37:05 GMT http://hdl.handle.net/2117/8396 2010-07-26T10:37:05Z Marsal Amenós, Félix; Palet Alsina, Daniel; Indrie, Liliana; Ratiu, Mariana no The textile technologist knows that the prediction of the aspect of a finished knitted fabric, by the parameters of yarn evenness, does not agree, often, with the reality. There are fabrics, in the market, with irregular aspect, made with yarns in which we have detected few faults. The conventional criteria that are considered in the evenness measuring equipments for the faults detection in the yarns are very limited.In this paper a new evenness of mass index is proposed, denominated deviation rate DR, that, according to it is demonstrated in the experimental stage, it follows an excellent statistical correlation with the aspect of the knitted fabrics.