1,075 research outputs found

    La musealización del patrimonio natural para su conservación, Museo Luis Mario Schneider, Malinalco, México

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    El presente artículo desarrolla la importancia del patrimonio natural mediante el trabajo realizado por la Universidad Autónoma del Estado de México, la cual comprende que la educación forma parte esencial en la preservación del entorno natural; es por esta razón que contribuye de manera activa en impulsar la responsabilidad social, al promover el cuidado de éste y otros patrimonios mediante la musealización. El texto resalta el trabajo realizado en el Museo Universitario Dr. Luis Mario Schneider, ubicado en Malinalco, Estado de México, en donde se mencionan aspectos importantes como su arquitectura, guión museográfico, museografía, exposiciones temporales y las diversas áreas que conforman un diseño integral, con el objetivo de considerar este museo como un ejemplo en la generación de nuevos espacios culturales que favorezcan el cuidado del medioambiente. Cabe mencionar el esfuerzo realizado en el proceso de diseño, así como la labor que se realiza cada día para transmitir con calidez el mensaje del museo mediante las visitas guiadas. Lo anterior ha dado como resultado una aceptación que se evidencia en los comentarios del cuaderno dispuesto a los visitantes para compartir sus opiniones sobre el museo, así como en la donación de piezas por parte de los pobladores. El libro de Registro ubicado en el acceso del inmueble, indica un promedio de 27 000 visitantes por año

    An innovative cooperative model for the Master Degree Project of Architecture. Overcoming the traditional system.

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    http://dx.doi.org/10.4995/HEAD17.2017.6713Although the Bologna’s process has highlighted the need to develop deep and structural changes in the educational institutions, there is a scarce bibliography on innovation projects in Master Degree Projects, specifically in the field of Architecture. This paper is part of a educational innovative reaserch project that is proposing a cooperative process-and-product model-based for MDP. The model is developed in three stages, from collaborative learning action groups to indivual project. At the end of the process the student has developed three documents: a presentation, a product and a daily-portfolio. Finally, MDP assessment is the sum of three evaluationsUniversidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    Spontaneous formation of vector vortex beams in vertical-cavity surface-emitting lasers with feedback

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    The spontaneous emergence of vector vortex beams with nonuniform polarization distribution is reported in a vertical-cavity surface-emitting laser (VCSEL) with frequency-selective feedback. Antivortices with a hyperbolic polarization structure and radially polarized vortices are demonstrated. They exist close to and partially coexist with vortices with uniform and nonuniform polarization distributions characterized by four domains of pairwise orthogonal polarization. The spontaneous formation of these nontrivial structures in a simple, nearly isotropic VCSEL system is remarkable and the vector vortices are argued to have solitonlike properties

    A Tighter Relaxation for the Relative Pose Problem Between Cameras

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    This paper tackles the resolution of the Relative Pose problem with optimality guarantees by stating it as an optimization problem over the set of essential matrices that minimizes the squared epipolar error. We relax this non-convex problem with its Shor’s relaxation, a convex program that can be solved by off-the-shelf tools. We follow the empirical observation that redundant but independent constraints tighten the relaxation. For that, we leverage equivalent definitions of the set of essential matrices based on the translation vectors between the cameras. Overconstrained characterizations of the set of essential matrices are derived by the combination of these definitions. Through extensive experiments on synthetic and real data, our proposal is empirically proved to remain tight and to require only 7 milliseconds to be solved even for the overconstrained formulations, finding the optimal solution under a wide variety of configurations, including highly noisy data and outliers. The solver cannot certify the solution only in very extreme cases, e.g.noise 100 pix and number of pair-wise correspondences under 15. The proposal is thus faster than other overconstrained formulations while being faster than the minimal ones, making it suitable for real-world applications that require optimality certification.Open Access funded by Universidad de Malaga / CBUA

    A near zero consumption building as an urban acupuncture for a vertical slum. A case study in the city of Malaga, Spain

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    Vertical slum is defined as a particularly vulnerable height building, with serious problems of functionality, safety and habitability. Venezuela’s Tower of David is a famous example. Vertical slums are associated with an important level of physical degradation, coupled with a precarious socioeconomic situation of its occupants. Their inability to create a community for proper and mandatory maintenance increases their physical deterioration. The abandonment of the original owners is replaced by a system of occupation and illegal activities. In many cases, with an interest in maintaining the building in a state of precariousness, which annuls any attempt to rehabilitate it Facing this situation, the intervention is proposed through an urban acupuncture project, understood as a project of expropriation and physical rehabilitation of the building, associated to a project of social rehabilitation in a disadvantaged environment. It is about creating a hybrid building associated with four objectives 1- Create a hybrid building with a mixed offer of social and housing services: sheltered housing for seniors, residence and accommodation for young entrepreneurs. The idea of a social condenser is related to studies of the hybrid building such as the Downtown Athletic Club in New York, or the Rokade Tower and Maartenshof residence (Groningen, The Netherlands). 2- Incorporate the sustainability parameters directed to a building almost zero. 3- Incorporate a model of provision of housing services, managed by the municipality, but with the possibility of incorporating NGOs 4- Design a social rehabilitation project that facilitates the creation of a web of social-based companies or cooperatives that fosters entrepreneurship, and that can actively participate in the rehabilitation and maintenance of the neighborhood itself. This paper applies these principles to a building in Malaga as a case study and 10 strategies are developed and analysed in regards to its physical, social and sustainable transformation.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

    El entorno de la Iglesia-Fortaleza de Nª Sª de la Encarnación de Motril (Granada). Modulación proyectual para su recuperación, puesta en valor y difusión

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    La iglesia fortaleza de Nuestra Señora de la Encarnación fue uno de los principales baluartes defensivos del siglo XVI en la costa granadina, tanto en su escala territorial y urbana como en la constructiva, ya que debía proteger la vega, la costa y el camino de acceso a Granada. La pacificación del territorio y su transformación en Colegiata en el s. XVIII desfigura su configuración inicial por las continuas ampliaciones. Tras la Guerra Civil, la iglesia es restaurada y se eliminan numerosos añadidos barrocos, recuperando su imagen defensiva inicial. El proyecto de rehabilitación del espacio público circundante propone una metodología de trabajo que pretende mostrar la evolución histórica de la iglesia. Para ello establece tres niveles de intervención: el valor simbólico-conceptual de su diseño, la reconstrucción material de elementos defensivos singulares y la difusión del proceso.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

    Packaging Process Optimization in MultiheadWeighers with Double-Layered Upright and Diagonal Systems

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    [EN] In multihead weighers, packaging processes seek to find the best combination of passage hoppers whose product content provides a total package weight as close as possible to its (nominal) label weight. The weighing hoppers arranged in these machines dispense the product quantity that each package contains through computer algorithms designed and executed for this purpose. For its part, in the packaging process for double-layered multihead weighers, all hoppers are arranged in two levels. The first layer comprises a group of weighing hoppers, and the second comprises a set of booster hoppers placed uprightly or diagonally to each weighing hopper based on design of the machine. In both processes, the initial machine configuration is the same; however, the hopper selection algorithm works differently. This paper proposes a new packaging process optimization algorithm for double-layer upright and diagonal machines, wherein the hopper subset combined has previously been defined, and the packaging weight is expressed as actual values. As part of its validation, product filling strategies were implemented for weighing hoppers to assess the algorithm in different scenarios. Results from the process performance metrics prove that the new algorithm improves processes by reducing variability. In addition, results reveal that some machine configurations were also able to improve their operation.We express our gratitude for the support from Universidad Simon Bolivar, and Universitat Politecnica de Valencia.Garcia-Jimenez, R.; García-Díaz, JC.; Pulido-Rojano, ADJ. (2021). Packaging Process Optimization in MultiheadWeighers with Double-Layered Upright and Diagonal Systems. Mathematics. 9(9):1-20. https://doi.org/10.3390/math9091039S1209

    Resilient source seeking with robot swarms

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    We present a solution for locating the source, or maximum, of an unknown scalar field using a swarm of mobile robots. Unlike relying on the traditional gradient information, the swarm determines an ascending direction to approach the source with arbitrary precision. The ascending direction is calculated from measurements of the field strength at the robot locations and their relative positions concerning the centroid. Rather than focusing on individual robots, we focus the analysis on the density of robots per unit area to guarantee a more resilient swarm, i.e., the functionality remains even if individuals go missing or are misplaced during the mission. We reinforce the robustness of the algorithm by providing sufficient conditions for the swarm shape so that the ascending direction is almost parallel to the gradient. The swarm can respond to an unexpected environment by morphing its shape and exploiting the existence of multiple ascending directions. Finally, we validate our approach numerically with hundreds of robots. The fact that a large number of robots always calculate an ascending direction compensates for the loss of individuals and mitigates issues arising from the actuator and sensor noises.Comment: 7 pages, submitted to ICRA 202

    Cycle Time Improvement by a Six Sigma Project for the Increase of New Business Accounts

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    This paper reports the application of a 6σ project about the reduction of the cycle time for acquiring a new credit account in a finance group. The methodology used in this project was the DMAI technique of 6σ. The paper documents the analysis and tasks performed by the management team that reduced cycle time from 49 days to 30 days which resulted in an expected annual savings of $300,000.00. Also an increased customer satisfaction and an increase of sales is expected
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