http://hdl.handle.net/2117/3962 Mon, 20 May 2013 03:51:09 GMT 2013-05-20T03:51:09Z webmaster.bupc@upc.edu Universitat Politècnica de Catalunya. Servei de Biblioteques i Documentació no http://hdl.handle.net/2117/18215 Title: Chicken feathers based composites: a life cycle assessment Authors: Molins Durán, Gemma; Álvarez del Castillo, María Dolores; Garrido Soriano, Núria; Macanàs de Benito, Jorge; Carrillo Navarrete, Fernando Abstract: Chicken feathers (CFs) are a waste material generated from poultry industry in large quantities. A composite material constituted of poly lactide and CFs is proposed in order to prepare a biodegradable composite with low environmental impact. In order to evaluate its environmental impact, a Life Cycle Assessment (LCA) is performed. The results show that, from the environmental point of view, the more chicken feathers in the material, the greater is its impact. This is mainly due to the non - inclusion of the impact data regarding CFs current waste management treatments required in accordance with the European Directive CE 1069/2009 (in study) and to the high energy consumption of the pre - treatment stages (cleaning and sanitizing) required to transform CFs waste into a CFs technical material that can be used for the preparation of CFs/PLA composites material, which needs to be optimized. Tue, 12 Mar 2013 14:31:40 GMT http://hdl.handle.net/2117/18215 2013-03-12T14:31:40Z Molins Durán, Gemma; Álvarez del Castillo, María Dolores; Garrido Soriano, Núria; Macanàs de Benito, Jorge; Carrillo Navarrete, Fernando no Chicken feathers (CFs) are a waste material generated from poultry industry in large quantities. A composite material constituted of poly lactide and CFs is proposed in order to prepare a biodegradable composite with low environmental impact. In order to evaluate its environmental impact, a Life Cycle Assessment (LCA) is performed. The results show that, from the environmental point of view, the more chicken feathers in the material, the greater is its impact. This is mainly due to the non - inclusion of the impact data regarding CFs current waste management treatments required in accordance with the European Directive CE 1069/2009 (in study) and to the high energy consumption of the pre - treatment stages (cleaning and sanitizing) required to transform CFs waste into a CFs technical material that can be used for the preparation of CFs/PLA composites material, which needs to be optimized. http://hdl.handle.net/2117/17794 Title: Instrumento quirúrgico de sutura para anastomosis automática del tubo digestivo Authors: Tornero García, José Antonio; Suárez Feijóo, Raúl; Cano Casas, Francesc; Montaño Sarria, Andrés Felipe; López Cano, Manuel Abstract: En la cirugía digestiva, una anastomosis del intestino consiste en la reconstrucción del tubo digestivo por unión de dos cabos tras la resección de una porción del mismo. Este procedimiento, de común aplicación en diversos tipos de intervención quirúrgica se realiza actualmente mediante la aplicación de grapas metálicas debido a la complejidad inherente de la realización de una sutura manual. La automatización del proceso de sutura mediante un dispositivo diseñado a tal efecto supondría una notable mejora en el procedimiento quirúrgico asociado y posteriormente en la calidad de vida del paciente, ya que las grapas metálicas empleadas actualmente presentan diversos inconvenientes. El diseño de este dispositivo presenta gran complejidad debido al rigor de los requisitos funcionales y a la complejidad del entorno de funcionamiento así como las características de los materiales que intervienen en el proceso.En el presente trabajo se describe el desarrollo de un prototipo de dispositivo para anastomosis automática mediante sutura, evaluando su funcionalidad a nivel de laboratorio, con objeto de probar su validez Fri, 15 Feb 2013 13:50:44 GMT http://hdl.handle.net/2117/17794 2013-02-15T13:50:44Z Tornero García, José Antonio; Suárez Feijóo, Raúl; Cano Casas, Francesc; Montaño Sarria, Andrés Felipe; López Cano, Manuel no En la cirugía digestiva, una anastomosis del intestino consiste en la reconstrucción del tubo digestivo por unión de dos cabos tras la resección de una porción del mismo. Este procedimiento, de común aplicación en diversos tipos de intervención quirúrgica se realiza actualmente mediante la aplicación de grapas metálicas debido a la complejidad inherente de la realización de una sutura manual. La automatización del proceso de sutura mediante un dispositivo diseñado a tal efecto supondría una notable mejora en el procedimiento quirúrgico asociado y posteriormente en la calidad de vida del paciente, ya que las grapas metálicas empleadas actualmente presentan diversos inconvenientes. El diseño de este dispositivo presenta gran complejidad debido al rigor de los requisitos funcionales y a la complejidad del entorno de funcionamiento así como las características de los materiales que intervienen en el proceso.En el presente trabajo se describe el desarrollo de un prototipo de dispositivo para anastomosis automática mediante sutura, evaluando su funcionalidad a nivel de laboratorio, con objeto de probar su validez http://hdl.handle.net/2117/17419 Title: Effect of continuous post-setting on crystallinity and thermomechanical behaviour of False-Twist Textured Polylactide multifilaments Authors: Manich Bou, Albert M.; Carilla Auguet, Josep; López Santana, Daniel; Baena, Barbara; Riba Moliner, Marta; Prieto Fuentes, María Remedios; Montero Palacios, Lucila; Cayuela Marín, Diana Abstract: Polylactide (PLA) multifilaments, false-twist textured at different temperatures (135, 150 and 165ºC) and draw ratios (1.30, 1.35 and 1.40) have been stabilized by a continuous post setting treatment at 50 m/min and 100ºC using a specially designed chamber. The crystallinity of the original textured filaments and those of the stabilized ones has been measured. The effect of post setting on the thermomechanical behaviour according to the texturing conditions has been studied. The relationship between crystallinity and both relaxation shrinkage and maximum phase lag temperature have been pointed out Fri, 18 Jan 2013 11:59:58 GMT http://hdl.handle.net/2117/17419 2013-01-18T11:59:58Z Manich Bou, Albert M.; Carilla Auguet, Josep; López Santana, Daniel; Baena, Barbara; Riba Moliner, Marta; Prieto Fuentes, María Remedios; Montero Palacios, Lucila; Cayuela Marín, Diana no Polylactide (PLA) multifilaments, false-twist textured at different temperatures (135, 150 and 165ºC) and draw ratios (1.30, 1.35 and 1.40) have been stabilized by a continuous post setting treatment at 50 m/min and 100ºC using a specially designed chamber. The crystallinity of the original textured filaments and those of the stabilized ones has been measured. The effect of post setting on the thermomechanical behaviour according to the texturing conditions has been studied. The relationship between crystallinity and both relaxation shrinkage and maximum phase lag temperature have been pointed out http://hdl.handle.net/2117/16357 Title: Composites from keratin biofibers. Study of compatibility using polyolephinic matrices Authors: Carrillo Navarrete, Fernando; Rahalli, A; Cañavate Ávila, Francisco Javier; Colom Fajula, Xavier Abstract: The study deals with the analysis and characterization of chicken feathers (CFs) based thermoplastic composites. The performance of the composite has been characterized in terms of mechanical properties which have been related to the fibre-matrix compatibility of the composite components analyzed by FTIR and SEM. The results have shown that the addition of short CFs as a filler to the PP thermoplastic matrix did not significantly improve the mechanical properties. A slightly increase of the stiffness has been observed when using small quantities of CFs (5-10% v/v) that provides to the composites a more brittle behaviour. Analogous behaviour has been observed for HDPE/CFs composites. FTIR spectroscopy and SEM micrographs analyses show limited compatibility between the composite components (CFs and polyolephinic matrices) Fri, 27 Jul 2012 11:24:04 GMT http://hdl.handle.net/2117/16357 2012-07-27T11:24:04Z Carrillo Navarrete, Fernando; Rahalli, A; Cañavate Ávila, Francisco Javier; Colom Fajula, Xavier no The study deals with the analysis and characterization of chicken feathers (CFs) based thermoplastic composites. The performance of the composite has been characterized in terms of mechanical properties which have been related to the fibre-matrix compatibility of the composite components analyzed by FTIR and SEM. The results have shown that the addition of short CFs as a filler to the PP thermoplastic matrix did not significantly improve the mechanical properties. A slightly increase of the stiffness has been observed when using small quantities of CFs (5-10% v/v) that provides to the composites a more brittle behaviour. Analogous behaviour has been observed for HDPE/CFs composites. FTIR spectroscopy and SEM micrographs analyses show limited compatibility between the composite components (CFs and polyolephinic matrices) http://hdl.handle.net/2117/16355 Title: Use of chicken feathers waste for the fabrication of composite materials Authors: Carrillo Navarrete, Fernando; Macanàs de Benito, Jorge; Colom Fajula, Xavier; Cañavate Ávila, Francisco Javier; Molins Durán, Gemma; Álvarez del Castillo, María Dolores; Garrido Soriano, Núria Abstract: Chicken feathers (CFs), mainly discarded nowadays, are an alternative reinforcement to be applied in the preparation of composite materials (CMs). The effect of different sanitizing methods on the properties of both CFs and the corresponding CMs has been studied. Some characteristic parameters such as density have been found to be dependent on the treatment that CFs endure, whereas the mechanical properties of the CMs made of thermoplastics matrices (e.g. polypropylene and high density polyethylene) were only slightly affected by the treatment. The introduction of CFs decreased the tensile strength of the CMs compared with the neat polymers while other parameters (e.g. Young’s modulus) were essentially unaffected Fri, 27 Jul 2012 09:35:40 GMT http://hdl.handle.net/2117/16355 2012-07-27T09:35:40Z Carrillo Navarrete, Fernando; Macanàs de Benito, Jorge; Colom Fajula, Xavier; Cañavate Ávila, Francisco Javier; Molins Durán, Gemma; Álvarez del Castillo, María Dolores; Garrido Soriano, Núria no Chicken feathers (CFs), mainly discarded nowadays, are an alternative reinforcement to be applied in the preparation of composite materials (CMs). The effect of different sanitizing methods on the properties of both CFs and the corresponding CMs has been studied. Some characteristic parameters such as density have been found to be dependent on the treatment that CFs endure, whereas the mechanical properties of the CMs made of thermoplastics matrices (e.g. polypropylene and high density polyethylene) were only slightly affected by the treatment. The introduction of CFs decreased the tensile strength of the CMs compared with the neat polymers while other parameters (e.g. Young’s modulus) were essentially unaffected http://hdl.handle.net/2117/12819 Title: Elliptical Model for Yarn Cross-Section. Part 4: A Study of the cross-sectional properties of the RS, OE and VS cotton spun yarns Authors: Kasem, Mohamed Hussein; Tornero García, José Antonio; Riva Juan, Ascensión Abstract: Actually the yarn cross-section and the cotton fibre cross-section are neither in the form of a circular nor hexagonal. The yarn cross-section tends to concentrate the structure packed form of irregularly polygonal with elliptical form appearance along the length of the yarn, due to tension, twist and yarn count. In the earlier research works (parts 1, 2 and 3) we approached equations to calculate the mayor and minor yarn diameters (D, d) of the RS, OE, and VS spun yarns as elliptical model. In this research work a study of the yarn cross-sectional properties (minor diameter d, mayor diameter D, Eccentricity e, profile cross-section area Ap, real elliptical area Ar, profile circumference Up, real elliptical circumference Ur, the packing density Pd and spun deformation factor Df) as a Comparison between the Ring Spun yarns RS, Open End yarns and Vortex Spun yarns VS. As results the packing density of the VS spun yarns was higher than the OE cotton yarns and less than the RS cotton yarns, by other mean found that the RS cotton yarns more compacted than the VS (6%) and OE cotton yarns (16%). The minor OE yarn diameters (d) increase 14% and 8% than the RS and VS minor diameters respectively while the mayor diameter (D) increase 8% and 5% only respectively, in the same time the minor (d) and mayor (D) VS yarn diameters increase 6% and 3% only respectively than the RS diameters (d, D). The deformation factor of the open end yarns (Df(OE)) was more than the deformation factor of the ring spun yarns (Df(RS)) and vortex spun yarns (Df(vs)) Thu, 23 Jun 2011 10:28:23 GMT http://hdl.handle.net/2117/12819 2011-06-23T10:28:23Z Kasem, Mohamed Hussein; Tornero García, José Antonio; Riva Juan, Ascensión no Actually the yarn cross-section and the cotton fibre cross-section are neither in the form of a circular nor hexagonal. The yarn cross-section tends to concentrate the structure packed form of irregularly polygonal with elliptical form appearance along the length of the yarn, due to tension, twist and yarn count. In the earlier research works (parts 1, 2 and 3) we approached equations to calculate the mayor and minor yarn diameters (D, d) of the RS, OE, and VS spun yarns as elliptical model. In this research work a study of the yarn cross-sectional properties (minor diameter d, mayor diameter D, Eccentricity e, profile cross-section area Ap, real elliptical area Ar, profile circumference Up, real elliptical circumference Ur, the packing density Pd and spun deformation factor Df) as a Comparison between the Ring Spun yarns RS, Open End yarns and Vortex Spun yarns VS. As results the packing density of the VS spun yarns was higher than the OE cotton yarns and less than the RS cotton yarns, by other mean found that the RS cotton yarns more compacted than the VS (6%) and OE cotton yarns (16%). The minor OE yarn diameters (d) increase 14% and 8% than the RS and VS minor diameters respectively while the mayor diameter (D) increase 8% and 5% only respectively, in the same time the minor (d) and mayor (D) VS yarn diameters increase 6% and 3% only respectively than the RS diameters (d, D). The deformation factor of the open end yarns (Df(OE)) was more than the deformation factor of the ring spun yarns (Df(RS)) and vortex spun yarns (Df(vs)) http://hdl.handle.net/2117/12560 Title: Color measurement and distinction of textile samples using a multispectral imaging system Authors: de Lasarte, Marta; Arjona Carbonell, Mª Montserrat; Vilaseca Ricart, Meritxell; Lis Arias, Manuel José; Navarro Viciana, Juan Antonio; Valldeperas Morell, José; Pujol Ramo, Jaume Fri, 13 May 2011 09:06:49 GMT http://hdl.handle.net/2117/12560 2011-05-13T09:06:49Z de Lasarte, Marta; Arjona Carbonell, Mª Montserrat; Vilaseca Ricart, Meritxell; Lis Arias, Manuel José; Navarro Viciana, Juan Antonio; Valldeperas Morell, José; Pujol Ramo, Jaume no http://hdl.handle.net/2117/10254 Title: Biofunctional textiles: skin assessment after textile application Authors: Martí, Meritxell; Alonso, C.; Rubio, L.; Lis Arias, Manuel José; Valldeperas Morell, José; Coderch, L.; Parra, J.L. Abstract: In recent years, new technologies have enabled the production of biofunctional textiles. There textiles are able to release therapeutic compounds or cosmetics to the skin. In this work, after the foulard application of an encapsulated active principle (the sun filter)onto cotton fabrics a new methodology for assessing the in vivo efficacy of the active principle applied to the textile as well as for the in vitro demonstration of its penetration into the skin has been developed. When the biofunctional textile is placed in close contact with the skin for som time, it is possible to evaluate its skin effectiveness using non-invasive biophysical techniques. Thu, 11 Nov 2010 15:24:44 GMT http://hdl.handle.net/2117/10254 2010-11-11T15:24:44Z Martí, Meritxell; Alonso, C.; Rubio, L.; Lis Arias, Manuel José; Valldeperas Morell, José; Coderch, L.; Parra, J.L. no In recent years, new technologies have enabled the production of biofunctional textiles. There textiles are able to release therapeutic compounds or cosmetics to the skin. In this work, after the foulard application of an encapsulated active principle (the sun filter)onto cotton fabrics a new methodology for assessing the in vivo efficacy of the active principle applied to the textile as well as for the in vitro demonstration of its penetration into the skin has been developed. When the biofunctional textile is placed in close contact with the skin for som time, it is possible to evaluate its skin effectiveness using non-invasive biophysical techniques. http://hdl.handle.net/2117/9982 Title: Caracterización del comportamiento acústico y mecánico de blends de HDPE/EPDM/NFU Authors: Colom Fajula, Xavier; Pola, E.; Casas, P.; Nogués Morell, Francesc; Carrillo Navarrete, Fernando; Cañavate Ávila, Francisco Javier Abstract: En este trabajo se pretende caracterizar el comportamiento acústico y mecánico de mezclas formadas por HDPE/EPDM/NFU. Los Neumáticos Fuera de Uso(NFU) son un gran problema debido al elevado grado de contaminación que generan. Se han analizado HDPE y HDPE/EPDM, para mejorar la compatibilidad entre la matriz y el refuerzo y obtener mejores propiedades mecánicas. Asimismo también se ha caracterizado el comportamiento acústico con el fin de conseguir incrementar el rango de aplicaciones de los mismos. Mon, 25 Oct 2010 16:54:57 GMT http://hdl.handle.net/2117/9982 2010-10-25T16:54:57Z Colom Fajula, Xavier; Pola, E.; Casas, P.; Nogués Morell, Francesc; Carrillo Navarrete, Fernando; Cañavate Ávila, Francisco Javier no En este trabajo se pretende caracterizar el comportamiento acústico y mecánico de mezclas formadas por HDPE/EPDM/NFU. Los Neumáticos Fuera de Uso(NFU) son un gran problema debido al elevado grado de contaminación que generan. Se han analizado HDPE y HDPE/EPDM, para mejorar la compatibilidad entre la matriz y el refuerzo y obtener mejores propiedades mecánicas. Asimismo también se ha caracterizado el comportamiento acústico con el fin de conseguir incrementar el rango de aplicaciones de los mismos. http://hdl.handle.net/2117/9685 Title: MODSIMTex: Project Overview Authors: Tornero García, José Antonio Abstract: The objective of the project is to develop a simulation system (software) for the physical-mechanical properties of the textile structures that enables the rapid manufacturing process configuration. Thu, 14 Oct 2010 09:09:57 GMT http://hdl.handle.net/2117/9685 2010-10-14T09:09:57Z Tornero García, José Antonio no The objective of the project is to develop a simulation system (software) for the physical-mechanical properties of the textile structures that enables the rapid manufacturing process configuration. http://hdl.handle.net/2117/6250 Title: Integració de vídeos docents de baix cost a ATENEA desenvolupats pel Grup d'Innovació Docent de Terrassa (GIDT) Authors: Ardanuy Raso, Mònica; Serrano, Pilar; Rajadell Carreras, Manuel; Suñé Torrents, Albert; Albareda Sambola, Maria; Simó Guzmán, Pep; Salán Ballesteros, Maria Núria; Fernández Alarcón, Vicenç; Algaba Joaquín, Inés María; Enache, Cristina Mihaela; Amante García, Beatriz; García-Almiñana, Daniel; Bravo Ibarra, Edna Rocío Abstract: En aquest treball s’exposen els resultats de la utilització de vídeos docents de baix cost, orientats a complementar la docència presencial i semi-presencial a Enginyeria Industrial, Enginyeria d'Organització Industrial i Enginyeria Aeronàutica a l’ETSEIAT. L’alta velocitat d’accés i la possibilitat de creació de xarxes de coneixement on tots els actors poden participar activament, són avantatges del video stream (Fiil & Ottewill, 2006; Michelinch, 2002) i de la Web 2.0, que s’han aprofitat per desenvolupar metodologies d’ús de vídeos docents que es poguessin inserir a la pròpia plataforma docent ATENEA (Moodle), combinats amb d’altres recursos, com text, imatges i qüestionaris. Wed, 27 Jan 2010 12:50:18 GMT http://hdl.handle.net/2117/6250 2010-01-27T12:50:18Z Ardanuy Raso, Mònica; Serrano, Pilar; Rajadell Carreras, Manuel; Suñé Torrents, Albert; Albareda Sambola, Maria; Simó Guzmán, Pep; Salán Ballesteros, Maria Núria; Fernández Alarcón, Vicenç; Algaba Joaquín, Inés María; Enache, Cristina Mihaela; Amante García, Beatriz; García-Almiñana, Daniel; Bravo Ibarra, Edna Rocío no En aquest treball s’exposen els resultats de la utilització de vídeos docents de baix cost, orientats a complementar la docència presencial i semi-presencial a Enginyeria Industrial, Enginyeria d'Organització Industrial i Enginyeria Aeronàutica a l’ETSEIAT. L’alta velocitat d’accés i la possibilitat de creació de xarxes de coneixement on tots els actors poden participar activament, són avantatges del video stream (Fiil & Ottewill, 2006; Michelinch, 2002) i de la Web 2.0, que s’han aprofitat per desenvolupar metodologies d’ús de vídeos docents que es poguessin inserir a la pròpia plataforma docent ATENEA (Moodle), combinats amb d’altres recursos, com text, imatges i qüestionaris.