Ponències/Comunicacions de congressos
http://hdl.handle.net/2117/5865
2024-03-28T21:55:39Z
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Strategies for high fill factor and open-circuit voltage in low-doped c-Ge TPV cells with partially contacted surfaces using 3D simulations
http://hdl.handle.net/2117/405037
Strategies for high fill factor and open-circuit voltage in low-doped c-Ge TPV cells with partially contacted surfaces using 3D simulations
Gamel, Mansur Mohammed Ali; Shojaei, David; López Rodríguez, Gema; Garin Escriva, Moises; Martín García, Isidro
Dielectric passivated surfaces provide excellent surface recombination properties while point-like contacts are defined to locally extract the current. In this solution, the distance between contacts, or pitch, is critical because it reveals the trade-off between the series resistance and the surface passivation, i.e., between fill factor (FF) and open circuit voltage (Voc). A priori, this trade-off is of paramount importance for low-doped substrates especially under thermophotovoltaic (TPV) conditions, where current densities in the range of 1 A/cm2 can be obtained. In this study, we investigate strategies to simultaneously achieve high FF and Voc in low-doped c-Ge TPV devices whose rear surface is partially contacted. We use 3D device simulations (Silvaco Atlas) to accurately study the effect of rear pitch under TPV illumination conditions where the photovoltaic device is placed close to a 1473 K thermal emitter. Firstly, we develop a model to introduce surface recombination in the 3D simulations which consists of defining a narrow (1-10 nm) region in bulk close to the surface with an equivalent lifetime. Next, the 1.2 ohms·cm c-Ge TPV device model with a rear partially contacted surface is investigated. Preliminary results show that optimum pitch can be extended from 75 to 125 µm by improving the saturation current density of the electron selective contact on the front surface. By doing so, apart from the obvious improvement in Voc, substrate resistivity is reduced due to the increase in excess carrier density at the maximum power point. As a consequence, the trade-off between FF and Voc is relaxed permitting high values for both.
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2024-03-20T15:08:14Z
Gamel, Mansur Mohammed Ali
Shojaei, David
López Rodríguez, Gema
Garin Escriva, Moises
Martín García, Isidro
Dielectric passivated surfaces provide excellent surface recombination properties while point-like contacts are defined to locally extract the current. In this solution, the distance between contacts, or pitch, is critical because it reveals the trade-off between the series resistance and the surface passivation, i.e., between fill factor (FF) and open circuit voltage (Voc). A priori, this trade-off is of paramount importance for low-doped substrates especially under thermophotovoltaic (TPV) conditions, where current densities in the range of 1 A/cm2 can be obtained. In this study, we investigate strategies to simultaneously achieve high FF and Voc in low-doped c-Ge TPV devices whose rear surface is partially contacted. We use 3D device simulations (Silvaco Atlas) to accurately study the effect of rear pitch under TPV illumination conditions where the photovoltaic device is placed close to a 1473 K thermal emitter. Firstly, we develop a model to introduce surface recombination in the 3D simulations which consists of defining a narrow (1-10 nm) region in bulk close to the surface with an equivalent lifetime. Next, the 1.2 ohms·cm c-Ge TPV device model with a rear partially contacted surface is investigated. Preliminary results show that optimum pitch can be extended from 75 to 125 µm by improving the saturation current density of the electron selective contact on the front surface. By doing so, apart from the obvious improvement in Voc, substrate resistivity is reduced due to the increase in excess carrier density at the maximum power point. As a consequence, the trade-off between FF and Voc is relaxed permitting high values for both.
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An analysis of academic outcomes in graphic expression subjects in engineering by considering students’ admission profiles
http://hdl.handle.net/2117/404016
An analysis of academic outcomes in graphic expression subjects in engineering by considering students’ admission profiles
Puig Poch, Mireia; Quintana, Elisabet; Voltas Aguilar, Jordi
Decree 171/2022 that regulates compulsory post-High School in Catalonia, establishes that Technical Drawing I and II are modality courses, which means that they are not compulsory. So students can choose other modality courses, such as Biology, Physics, Geology and Environmental Sciences, Chemistry or Technology and Engineering. Therefore, not all the students who take High School in Science and Technology will take Technical Drawing courses, although all the study programs of Industrial and Aerospace Engineering Degrees include a core course of Graphic Expression in the first academic year and admission programs strongly recommend having studied Technical Drawing. According to these circumstances, universities offer introductory level courses to prepare students, but these courses are not required for admission. It is ultimately the student’s decision. Therefore, students with different learning backgrounds normally co-exist in the same course, and these different backgrounds may affect the final course grade. This situation is observed in the Graphic Expression subject in the Engineering course of the Bachelor’s Degree in Industrial Engineering at Escola Superior d’Enginyeries Industrial, Aeroespacial i Audiovisual de Terrassa (ESEIAAT) at Universitat Politècnica de Catalunya (UPC). To understand the effect of students’ profiles on final course grades, a linear regression analysis is conducted. Studying the relation among the different variables (admission grade, technical drawing background, introductory course) can provide information to understand how the collected data behave and to potentially predict future outcomes. This model is also expected to help to introduce new strategies to improve the course’s pass rate
2024-03-08T14:35:44Z
Puig Poch, Mireia
Quintana, Elisabet
Voltas Aguilar, Jordi
Decree 171/2022 that regulates compulsory post-High School in Catalonia, establishes that Technical Drawing I and II are modality courses, which means that they are not compulsory. So students can choose other modality courses, such as Biology, Physics, Geology and Environmental Sciences, Chemistry or Technology and Engineering. Therefore, not all the students who take High School in Science and Technology will take Technical Drawing courses, although all the study programs of Industrial and Aerospace Engineering Degrees include a core course of Graphic Expression in the first academic year and admission programs strongly recommend having studied Technical Drawing. According to these circumstances, universities offer introductory level courses to prepare students, but these courses are not required for admission. It is ultimately the student’s decision. Therefore, students with different learning backgrounds normally co-exist in the same course, and these different backgrounds may affect the final course grade. This situation is observed in the Graphic Expression subject in the Engineering course of the Bachelor’s Degree in Industrial Engineering at Escola Superior d’Enginyeries Industrial, Aeroespacial i Audiovisual de Terrassa (ESEIAAT) at Universitat Politècnica de Catalunya (UPC). To understand the effect of students’ profiles on final course grades, a linear regression analysis is conducted. Studying the relation among the different variables (admission grade, technical drawing background, introductory course) can provide information to understand how the collected data behave and to potentially predict future outcomes. This model is also expected to help to introduce new strategies to improve the course’s pass rate
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Should teaching guides be used as indicators of gender dimension in a university degree?
http://hdl.handle.net/2117/397509
Should teaching guides be used as indicators of gender dimension in a university degree?
Mas de les Valls Ortiz, Elisabet; Peña Carrera, Marta; Olmedo Torre, Noelia; Lusa García, Amaia
In order to achieve a truly equality society, universities are making significant efforts towards gender mainstreaming. One of the main pillars of this approach is the implementation of a gender dimension in teaching. To assess the degree of progress towards this goal, suitable indicators, both qualitative and quantitative, are desirable. Surveys could be used to gather students’ perceptions or educators’ efforts as indicators, but an underutilised source of information is available in the teaching guides. Teaching guides are understood as those open-access documents where the public can find a subject’s description, goals, and contents, among other universityspecific features.The aim of the study is to analyse whether the teaching guides can become viable tools to assess the degree of implementation of gender perspective in university teaching. In the present study, 16 teaching guides and their evolution over a five-week-long gender-in-teaching training program have been analysed using a combination of quantitative and qualitative methodologies. The former is based on participants’ and the trainer’s perceptions, while the latter is based on the appearance of gender-related terms within the teaching guide. The results show how the teaching guide can provide evidence of the existence of a gender dimension within a subject, but also highlight the urgent need to train educators on how to include this dimension. Additionally, a systematic quantitative analysis of the teaching guides is proposed to assess the degree of gender dimension within a Bachelor’s or Master’s degree. The present study might help academic gender policy design bodies to define strategies towards monitoring and promoting gender dimension in teaching. Furthermore, it provides university educators with indications of how to transform their teaching guides according to a feminist point of view.
2023-12-01T09:01:43Z
Mas de les Valls Ortiz, Elisabet
Peña Carrera, Marta
Olmedo Torre, Noelia
Lusa García, Amaia
In order to achieve a truly equality society, universities are making significant efforts towards gender mainstreaming. One of the main pillars of this approach is the implementation of a gender dimension in teaching. To assess the degree of progress towards this goal, suitable indicators, both qualitative and quantitative, are desirable. Surveys could be used to gather students’ perceptions or educators’ efforts as indicators, but an underutilised source of information is available in the teaching guides. Teaching guides are understood as those open-access documents where the public can find a subject’s description, goals, and contents, among other universityspecific features.The aim of the study is to analyse whether the teaching guides can become viable tools to assess the degree of implementation of gender perspective in university teaching. In the present study, 16 teaching guides and their evolution over a five-week-long gender-in-teaching training program have been analysed using a combination of quantitative and qualitative methodologies. The former is based on participants’ and the trainer’s perceptions, while the latter is based on the appearance of gender-related terms within the teaching guide. The results show how the teaching guide can provide evidence of the existence of a gender dimension within a subject, but also highlight the urgent need to train educators on how to include this dimension. Additionally, a systematic quantitative analysis of the teaching guides is proposed to assess the degree of gender dimension within a Bachelor’s or Master’s degree. The present study might help academic gender policy design bodies to define strategies towards monitoring and promoting gender dimension in teaching. Furthermore, it provides university educators with indications of how to transform their teaching guides according to a feminist point of view.
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Ozone: a promising agent to functionalize cellulose
http://hdl.handle.net/2117/393261
Ozone: a promising agent to functionalize cellulose
Valls Vidal, Cristina; Cusola Aumedes, Oriol; Roncero Vivero, María Blanca
Ozone is a well-known chemical agent used in pulp bleaching, where its role is to remove lignin although carbohydrates are also affected. Toe objective ofthis work was to modify cellulose with ozone in order to create new carbonyl groups that could provide new properties to this biopolymer. Two eucalyptus pulps with different content of hexenuronic acids (HexA) (ECF, TCF), and a high-cellulose content pulp (cotton linters) were ozone-treated. The presence of carbonyl groups was identified by the chain scissions (CSccc()) produced in cellulose during viscosity measurements and also by an increase in the amount of DNPH consumed by pulp fibres and an increase in pulp brightness reversion. At a <lose of 0.5% of ozone carbonyl groups were created in the three kinds of pulp but significantly higher amounts were introduced with two ozone stages at 0.5% (0.5+0.5). Different amounts of carbonyl groups were created depending on both, the HexA and hemicelluloses content. Thus, in the eucalyptus ECF bleached pulp the highest amounts offunctional groups were created
2023-09-08T07:59:55Z
Valls Vidal, Cristina
Cusola Aumedes, Oriol
Roncero Vivero, María Blanca
Ozone is a well-known chemical agent used in pulp bleaching, where its role is to remove lignin although carbohydrates are also affected. Toe objective ofthis work was to modify cellulose with ozone in order to create new carbonyl groups that could provide new properties to this biopolymer. Two eucalyptus pulps with different content of hexenuronic acids (HexA) (ECF, TCF), and a high-cellulose content pulp (cotton linters) were ozone-treated. The presence of carbonyl groups was identified by the chain scissions (CSccc()) produced in cellulose during viscosity measurements and also by an increase in the amount of DNPH consumed by pulp fibres and an increase in pulp brightness reversion. At a <lose of 0.5% of ozone carbonyl groups were created in the three kinds of pulp but significantly higher amounts were introduced with two ozone stages at 0.5% (0.5+0.5). Different amounts of carbonyl groups were created depending on both, the HexA and hemicelluloses content. Thus, in the eucalyptus ECF bleached pulp the highest amounts offunctional groups were created
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Materials based on cellulose for e-commerce packaging
http://hdl.handle.net/2117/393260
Materials based on cellulose for e-commerce packaging
Escursell Martínez, Silvia; Valls Vidal, Cristina; Llorach-Massana, Pere; Roncero Vivero, María Blanca
As a result of the pandemic and the new tax on the use of plastics in the EU, the consumption of cellulose has increased, especially for cardboard boxes as e-commerce packaging. Due to this high demand, the price of cellulose is rising considerably. It is also worth considering that in order to avoid problems with breakage during product mobility, overpackaging and the generation of more waste is a problem to be taken into account. Nature has shown us that it can optimise resources and energy, finding a balance between form, matter and function without generating waste, and building resilient, collaborative, creative and sensory models together. In fact, artists such as Leonardo da Vinci or naturalist as Ernst Haeckel already devoted themselves to observing and studying nature as a turning point in their designs and paintings. Focusing on materials, scientists such as Lynn Margulis, Janine Benyus or Stefano Mancuso have demonstrated the variety and different reproduction processes in natural ecosystems, as well as the interdependent relationship between them. And even new methodologies go beyond sustainability, and there is already talk of regenerative culture and systemic design. In other words, achieving transformative innovation through a more holistic vision and in collaboration with different entities. Following these considerations, our approach is to apply these natural systems to e-commerce packaging, obtaining a greater variety of biomaterials. For this reason we present different proposals for materials based on cellulose, one of the most abundant and renewable biopolymers on earth. We will also analyse the differences between cellulose extracted from vegetable fibre and cellulose generated from bacteria. Their properties provide us with flexibility, strength, toughness, among others, and allow us to rethink the different production processes to adapt them to each type of product and avoid generating overpackaging
2023-09-08T07:41:55Z
Escursell Martínez, Silvia
Valls Vidal, Cristina
Llorach-Massana, Pere
Roncero Vivero, María Blanca
As a result of the pandemic and the new tax on the use of plastics in the EU, the consumption of cellulose has increased, especially for cardboard boxes as e-commerce packaging. Due to this high demand, the price of cellulose is rising considerably. It is also worth considering that in order to avoid problems with breakage during product mobility, overpackaging and the generation of more waste is a problem to be taken into account. Nature has shown us that it can optimise resources and energy, finding a balance between form, matter and function without generating waste, and building resilient, collaborative, creative and sensory models together. In fact, artists such as Leonardo da Vinci or naturalist as Ernst Haeckel already devoted themselves to observing and studying nature as a turning point in their designs and paintings. Focusing on materials, scientists such as Lynn Margulis, Janine Benyus or Stefano Mancuso have demonstrated the variety and different reproduction processes in natural ecosystems, as well as the interdependent relationship between them. And even new methodologies go beyond sustainability, and there is already talk of regenerative culture and systemic design. In other words, achieving transformative innovation through a more holistic vision and in collaboration with different entities. Following these considerations, our approach is to apply these natural systems to e-commerce packaging, obtaining a greater variety of biomaterials. For this reason we present different proposals for materials based on cellulose, one of the most abundant and renewable biopolymers on earth. We will also analyse the differences between cellulose extracted from vegetable fibre and cellulose generated from bacteria. Their properties provide us with flexibility, strength, toughness, among others, and allow us to rethink the different production processes to adapt them to each type of product and avoid generating overpackaging
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Estudio bibliométrico de los Trabajos Fin de Estudio del Departamento de Ingeniería Gráfica y de Diseño en la Escuela de Ingeniería de Barcelona Este. Conocimiento para mejorar la gestión de la dirección de TFE
http://hdl.handle.net/2117/393040
Estudio bibliométrico de los Trabajos Fin de Estudio del Departamento de Ingeniería Gráfica y de Diseño en la Escuela de Ingeniería de Barcelona Este. Conocimiento para mejorar la gestión de la dirección de TFE
Farrerons Vidal, Óscar
Bibliometric study of TFE directed by the section of the DEGD in the EEBE. The percentages of TFE of the section with respect to the total of the department and of the EEBE are highlighted. The main thematic areas in which the TFE have been grouped, the language in which they have been presented, their access condition, and the SDGs they have been assigned are analysed. Conclusions are obtained to improve the overall teaching work of TFE management in the DEGD section.
2023-08-31T12:25:25Z
Farrerons Vidal, Óscar
Bibliometric study of TFE directed by the section of the DEGD in the EEBE. The percentages of TFE of the section with respect to the total of the department and of the EEBE are highlighted. The main thematic areas in which the TFE have been grouped, the language in which they have been presented, their access condition, and the SDGs they have been assigned are analysed. Conclusions are obtained to improve the overall teaching work of TFE management in the DEGD section.
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Estudio de los sistemas fontinales de la Reserva de la Biosfera del Montseny (2016-2023)
http://hdl.handle.net/2117/391881
Estudio de los sistemas fontinales de la Reserva de la Biosfera del Montseny (2016-2023)
Farrerons Vidal, Óscar; Prat Bofill, Fortià
Este artículo muestra los resultados obtenidos durante siete años de investigación del Proyecto “Fonts del Montseny”, destacando que las fuentes son un elemento del patrimonio cultural, histórico, social y natural en el territorio del Montseny, y mostrando la comparativa de los análisis químicos llevados a cabo en 310 fuentes, agrupadas en cinco zonas geográficas del Montseny: norte, oeste, este, sureste y suroeste.
2023-07-20T13:15:04Z
Farrerons Vidal, Óscar
Prat Bofill, Fortià
Este artículo muestra los resultados obtenidos durante siete años de investigación del Proyecto “Fonts del Montseny”, destacando que las fuentes son un elemento del patrimonio cultural, histórico, social y natural en el territorio del Montseny, y mostrando la comparativa de los análisis químicos llevados a cabo en 310 fuentes, agrupadas en cinco zonas geográficas del Montseny: norte, oeste, este, sureste y suroeste.
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Assessment of the hyperbolic paraboloids of the Church of the Holy Trinity, Caracas through architectural visualization
http://hdl.handle.net/2117/391840
Assessment of the hyperbolic paraboloids of the Church of the Holy Trinity, Caracas through architectural visualization
Davila Cordido, Mariolly
The technological advances of the Modern Movement in architecture introduced hyperbolic structures of great architectural simplicity and high structural complexity. The Church of the Holy Trinity in Caracas, built in 1969, is an example of these roofs. Four hyperbolic paraboloids of reinforced concrete of great geometric complexity cover the same 28 x 28 m space.
The objective is to define geometrically and architecturally the church and its paraboloids through an architectural visualization methodology that uses the 3D model and orthogonal projections in the SolidWorks program.
The proposed methodology is carried out in three phases: first with the bibliographic and historical review of the church archives. Secondly, with the construction of the 3D model and its orthogonal projections in the program SolidWorks. Finally, the detailed analysis of the geometrical, architectural and structural content of the church, together with the updated and extended planimetry information.
Finally, the definition of a complex and non-existent analysis through architectural visualization. A methodology with SolidWorks that allows the modeling of geometrically complex curves and their planimetric extension, documentation necessary for their protection and safeguarding
2023-07-20T11:33:59Z
Davila Cordido, Mariolly
The technological advances of the Modern Movement in architecture introduced hyperbolic structures of great architectural simplicity and high structural complexity. The Church of the Holy Trinity in Caracas, built in 1969, is an example of these roofs. Four hyperbolic paraboloids of reinforced concrete of great geometric complexity cover the same 28 x 28 m space.
The objective is to define geometrically and architecturally the church and its paraboloids through an architectural visualization methodology that uses the 3D model and orthogonal projections in the SolidWorks program.
The proposed methodology is carried out in three phases: first with the bibliographic and historical review of the church archives. Secondly, with the construction of the 3D model and its orthogonal projections in the program SolidWorks. Finally, the detailed analysis of the geometrical, architectural and structural content of the church, together with the updated and extended planimetry information.
Finally, the definition of a complex and non-existent analysis through architectural visualization. A methodology with SolidWorks that allows the modeling of geometrically complex curves and their planimetric extension, documentation necessary for their protection and safeguarding
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Valorization of paper waste sludge to produce films for packaging
http://hdl.handle.net/2117/391129
Valorization of paper waste sludge to produce films for packaging
Quintana, Elisabet; Valls Vidal, Cristina; Roncero Vivero, María Blanca
The global production of paper was more than 400 million tons in 2020, and about 40–50 kg of dry sludge/ton paper produced was generated. The management of this huge volume of solid waste material has become a serious problem for paper industry and an environmental challenge. Sustainable practices, alternative to disposal by landfilling, must be developed. The present work studied the potential of reusing sludge waste from paper manufacturer with the purpose to produce cellulose acetate films.
2023-07-17T13:15:51Z
Quintana, Elisabet
Valls Vidal, Cristina
Roncero Vivero, María Blanca
The global production of paper was more than 400 million tons in 2020, and about 40–50 kg of dry sludge/ton paper produced was generated. The management of this huge volume of solid waste material has become a serious problem for paper industry and an environmental challenge. Sustainable practices, alternative to disposal by landfilling, must be developed. The present work studied the potential of reusing sludge waste from paper manufacturer with the purpose to produce cellulose acetate films.
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Análisis de los resultados académico en asignaturas de Expresión Gráfica en la Ingeniería atendiendo a los perfiles de acceso de los estudiantes
http://hdl.handle.net/2117/390641
Análisis de los resultados académico en asignaturas de Expresión Gráfica en la Ingeniería atendiendo a los perfiles de acceso de los estudiantes
Quintana, Elisabet; Puig Poch, Mireia; Voltas Aguilar, Jordi
Tal y como establece el RD 822/2021 [1], los sistemas de calidad en el ámbito universitario analizan las titulaciones universitarias a través de distintos ámbitos denominados Estándares que, a modo de ejes directivos, determinan aquello que un estudio universitario debe tener en cuenta para poder acceder a un sello de calidad. Uno de estos estándares se centra en la calidad de los programas formativos, y tiene en cuenta la estructura de profesorado, los servicios con que cuenta el centro y los resultados académicos. A partir del análisis de un conjunto de indicadores los centros realizan las valoraciones correspondientes y proponen acciones de mejora cuando los resultados no son lo favorables que deberían. Esta comunicación se centra en el proceso de análisis de resultados de asignaturas del ámbito de la Expresión Gráfica para valorar la realización de medidas correctoras. Según el decreto 142/2008 que establece la ordenación de la enseñanza del bachillerato en Catalunya [2], vigente hasta 20 de setiembre de 2022, las asignaturas de dibujo técnico I y II son materias de modalidad lo que significa que no todos los estudiantes que realizan la modalidad de bachillerato de ciencia y tecnología cursaran esta materia. No obstante, la mayoría de los grados en Ingeniería del ámbito industrial, incluyen en su plan de estudio una asignatura del área de la Expresión Gráfica y recomiendan haber cursado dibujo técnico en bachillerato [3]. A esta realidad, algunos centros que imparten estas enseñanzas optan por realizar cursos introductorios, propedéuticos o cursos cero de manera que el estudiante tenga un primer contacto con la materia antes de realizar la asignatura propiamente dicha. Sucede, no obstante, que no formando parte del plan de estudios su realización está sujeta a la voluntad del estudiante. Así, finalmente, en la asignatura pueden convivir estudiantes que hayan realizado dibujo técnico previamente o no y estudiantes que han cursado el curso cero o no. Ante esta realidad vemos indicada la necesidad de un estudio comparativo de los resultados obtenidos en asignaturas de Expresión Gráfica, atendiendo a los distintos perfiles de los estudiantes. Poniendo el foco en las asignaturas de Expresión Gráfica a la Ingeniería impartidas en los diferentes Grados en Ingeniería de la ESEIAAT, en los últimos 6 años el porcentaje de aprobados es diverso en función del grado cursado de los estudiantes, pero oscila entre el 50 y el 70%. En este artículo se revisarán los resultados académicos de los últimos cursos, atendiendo a la particularidad del periodo afectado por la COVID, se identificarán tendencias en base a los distintos perfiles de estudiantes. El objetivo final de este análisis es poder mejorar el planteamiento y diseño de la asignatura, adaptándola a las necesidades del grupo-clase de acuerdo al nivel de conocimiento que tienen de la materia, y consecuentemente mejorar los resultados académicos de los estudiantes, y en especial de los que no han cursado dibujo técnico en Bachillerato [4]. La asignatura objeto de estudio es una asignatura obligatoria, teórico-práctica de 4h semanales, el número de estudiantes por grupo está alrededor de 30, y la asignatura sigue una evaluación continua con un peso del 40%, que se compone de un proyecto en grupo (15%), prácticas semanales (5%), y dos controles que se realizan en clase (10% cada uno); el resto de la ponderación corresponde a los exámenes, primer parcial y segundo parcial, con un 30% de peso cada uno. Las clases están planteadas para que cualquier estudiante, independiente de si presenta competencias previas en dibujo técnico, pueda alcanzar el aprendizaje del temario satisfactoriamente, y en caso de necesitarlo dispone de material complementario tanto teórico como práctico para reforzar aquellos temas en los que tienen más dificultades.
2023-07-12T06:51:19Z
Quintana, Elisabet
Puig Poch, Mireia
Voltas Aguilar, Jordi
Tal y como establece el RD 822/2021 [1], los sistemas de calidad en el ámbito universitario analizan las titulaciones universitarias a través de distintos ámbitos denominados Estándares que, a modo de ejes directivos, determinan aquello que un estudio universitario debe tener en cuenta para poder acceder a un sello de calidad. Uno de estos estándares se centra en la calidad de los programas formativos, y tiene en cuenta la estructura de profesorado, los servicios con que cuenta el centro y los resultados académicos. A partir del análisis de un conjunto de indicadores los centros realizan las valoraciones correspondientes y proponen acciones de mejora cuando los resultados no son lo favorables que deberían. Esta comunicación se centra en el proceso de análisis de resultados de asignaturas del ámbito de la Expresión Gráfica para valorar la realización de medidas correctoras. Según el decreto 142/2008 que establece la ordenación de la enseñanza del bachillerato en Catalunya [2], vigente hasta 20 de setiembre de 2022, las asignaturas de dibujo técnico I y II son materias de modalidad lo que significa que no todos los estudiantes que realizan la modalidad de bachillerato de ciencia y tecnología cursaran esta materia. No obstante, la mayoría de los grados en Ingeniería del ámbito industrial, incluyen en su plan de estudio una asignatura del área de la Expresión Gráfica y recomiendan haber cursado dibujo técnico en bachillerato [3]. A esta realidad, algunos centros que imparten estas enseñanzas optan por realizar cursos introductorios, propedéuticos o cursos cero de manera que el estudiante tenga un primer contacto con la materia antes de realizar la asignatura propiamente dicha. Sucede, no obstante, que no formando parte del plan de estudios su realización está sujeta a la voluntad del estudiante. Así, finalmente, en la asignatura pueden convivir estudiantes que hayan realizado dibujo técnico previamente o no y estudiantes que han cursado el curso cero o no. Ante esta realidad vemos indicada la necesidad de un estudio comparativo de los resultados obtenidos en asignaturas de Expresión Gráfica, atendiendo a los distintos perfiles de los estudiantes. Poniendo el foco en las asignaturas de Expresión Gráfica a la Ingeniería impartidas en los diferentes Grados en Ingeniería de la ESEIAAT, en los últimos 6 años el porcentaje de aprobados es diverso en función del grado cursado de los estudiantes, pero oscila entre el 50 y el 70%. En este artículo se revisarán los resultados académicos de los últimos cursos, atendiendo a la particularidad del periodo afectado por la COVID, se identificarán tendencias en base a los distintos perfiles de estudiantes. El objetivo final de este análisis es poder mejorar el planteamiento y diseño de la asignatura, adaptándola a las necesidades del grupo-clase de acuerdo al nivel de conocimiento que tienen de la materia, y consecuentemente mejorar los resultados académicos de los estudiantes, y en especial de los que no han cursado dibujo técnico en Bachillerato [4]. La asignatura objeto de estudio es una asignatura obligatoria, teórico-práctica de 4h semanales, el número de estudiantes por grupo está alrededor de 30, y la asignatura sigue una evaluación continua con un peso del 40%, que se compone de un proyecto en grupo (15%), prácticas semanales (5%), y dos controles que se realizan en clase (10% cada uno); el resto de la ponderación corresponde a los exámenes, primer parcial y segundo parcial, con un 30% de peso cada uno. Las clases están planteadas para que cualquier estudiante, independiente de si presenta competencias previas en dibujo técnico, pueda alcanzar el aprendizaje del temario satisfactoriamente, y en caso de necesitarlo dispone de material complementario tanto teórico como práctico para reforzar aquellos temas en los que tienen más dificultades.