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Virtualized automated warehouse with RFID technologies and managed from ERP
Full text link[SPA] Este Trabajo Fin de Máster aborda el diseño y desarrollo de un almacén automatizado virtualizado, integrado con una etapa de producción y concebido dentro de una arquitectura propia de la Industria 4.0. El proyecto parte del estudio de los almacenes automatizados vinculados a procesos productivos, así como del análisis del uso de sistemas ERP y tecnologías de trazabilidad como RFID para la gestión logística y empresarial en entornos industriales avanzados. La solución se implementa en un entorno virtual mediante la herramienta Factory I/O, donde se diseña un sistema capaz de gestionar un mínimo de 54 referencias de producto, abastecidas por una etapa de producción que incluye centros de mecanizado y un sistema de paletización. El sistema incorpora una línea de entrada de productos procedentes de la producción y una línea de salida destinada a la expedición de pedidos a clientes, reproduciendo el flujo físico de materiales propio de un entorno industrial real. El control del sistema se realiza mediante un autómata programable industrial, integrando la lógica de control con una plataforma MES basada en Ignition para la supervisión y gestión de la producción. Asimismo, se define una arquitectura de integración con un sistema ERP para la gestión de clientes y pedidos, permitiendo simular el flujo completo de información desde la generación de órdenes hasta la expedición de productos desde el almacén. La trazabilidad de las referencias se gestiona mediante información lógica del sistema, planteándose el uso de tecnologías RFID como una extensión natural del modelo desarrollado. El trabajo realizado demuestra la viabilidad de diseñar una fábrica digital completa en un entorno virtual, integrando producción, almacenamiento y gestión empresarial dentro de una arquitectura coherente y alineada con los principios de la Industria 4.0.
[ENG] This Master’s Final Project focuses on the design and development of a virtualized automated warehouse integrated with a production stage and conceived within an Industry 4.0 architecture. The project is based on the study of automated warehouses linked to manufacturing processes, as well as the analysis of Enterprise Resource Planning (ERP) systems and traceability technologies such as RFID for logistics and business management in advanced industrial environments. The proposed solution is implemented in a virtual environment using the Factory I/O software, where a system capable of managing at least 54 product references is designed. The warehouse is supplied by a production stage that includes machining centers and a palletizing system. The system incorporates an inbound line from production and an outbound line for customer order dispatch, reproducing the physical material flow of a real industrial environment. The system is controlled by an industrial programmable logic controller (PLC), whose control logic is integrated with a Manufacturing Execution System (MES) based on the Ignition platform for production supervision and management. In addition, an integration architecture with an ERP system is defined for customer and order management, enabling the simulation of a complete information flow from order generation to product dispatch from the warehouse. Product traceability is handled through logical reference management, while the use of RFID technology is proposed as a natural extension of the developed model. The developed project demonstrates the feasibility of designing a complete digital factory in a virtual environment, integrating production, automated storage and business management within a coherent architecture aligned with the principles of Industry 4.0.Escuela Técnica Superior de Ingeniería IndustrialUniversidad Politécnica de Cartagen
The history of electrical and electronic engineering
No full textThis resource introduces the history of electrical and electronic engineering, from early foundations and laws (Ohm, Faraday, Maxwell) to key innovations such as the telegraph, telephone, incandescent lamp, AC/DC power systems, vacuum tubes, radio, radar, and early computing. It includes reading comprehension, vocabulary with pronunciation, cloze exercises, speaking prompts, videos with quizzes, grammar practice on the passive voice, and a structured debate to consolidate understanding and skills
Application of the mass diagram in construction
No full textEducational resource in English about the application of mass diagrams in construction. It explains what a mass diagram is, its key features (cut/fill indications, peaks, valleys, balance lines), and how it informs haul length/direction, average haul, borrow and waste. The unit includes reading comprehension with MCQs, pronunciation of keywords with audio, gap-fill practice, speaking prompts, a related video activity, grammar focus on countable/uncountable nouns, and a Kahoot review, aimed at understanding terminology and practical use in project planning
Global patterns of current and future road infrastructure
No full textThis resource explores global patterns of current and future road infrastructure, summarizing the Global Roads Inventory Project, which integrated ~60 datasets to produce a worldwide roads dataset covering 222 countries and over 21 million km. It relates road length to area, population density, GDP, and OECD membership, yielding a regression model (adjusted R2=0.90). Projections using SSP scenarios estimate 3.0–4.7 million km additional road length by 2050, with major increases in developing wilderness regions, emphasizing the need for accurate spatial road datasets
Biorobotics
No full textThis English-language learning resource introduces biorobotics through reading comprehension, vocabulary pronunciation with audio, gap-fill practice, speaking prompts, and multimedia watching activities. It explains biologically inspired robots, tactile sensing and haptics, medical applications such as prosthetics and surgical tools, and interdisciplinary contributions from biomedical and neural engineering. Learners engage with questions, videos, and grammar tasks on countable/uncountable nouns to reinforce understanding and language skills around biorobotics concepts
Lean 4.0 transformation: continuous improvement practices for smart manufacturing
Full text link[SPA] La mejora constante en la industria, por lo general ligada a modos fijos, obtiene nuevas formas a través del uso de hábitos Lean.͏͏͏ Este trabajo, hecho͏͏ dentro del espacio de unas prácticas en Airbus, en el sector de Su͏ply Chain Opera͏tions, busca usar técnicas y rutinas Le͏an enfocadas en mejorar procesos͏͏ de logística, reducir desperdicios, así como hacer más fuerte la cadena͏͏ de suministro y mejorar la digitalización. Con este fin, se implementan herramientas como las 5S, Kaizen y VSM de manera cotidiana. Se analiza su impacto en la eficiencia operativa y la reducción de costes, con el objetivo de establecer una cultura de mejora continua sostenible a largo plazo. Los datos que se sacan muestran que si se usan bien estas herramientas no solo hace más eficiente la productividad, sino que también ayuda a que equipos trabajen juntos y aporta más confianza en el manejo de objetos y flujos logísticos. También, se notan los desafíos que existen con la aceptación cultural del método Lean en un medio͏ muy͏ exigente como el del sector aeroespacial. Se presentan formas para pasar por alto las resistencias y hacer más fuerte la modificación de la͏ organización. Desde este punto de mira, el análisis muestra de qué manera el sistema Lean pueden ser un impulsor͏͏ principal͏ del cambio en el manejo de la cadena de suministro, llevando a compañías mundiales como Airbus hacia modelos más rápidos competitivos y duraderos.
[ENG] Lean routines and continuous improvement, often linked to rigid industrial methodologies, are gaining renewed relevance through their application in modern supply chain management. This project, developed during an internship at Airbus within the Supply Chain Operations department, focuses on the implementation of Lean practices to optimize logistics processes, reduce waste, and enhance overall efficiency while at the same time improving the digitalization. The work evaluates key routines such as 5S, daily Kaizen, and process standardization, analyzing their impact on productivity, cost reduction, and the creation of a sustainable culture of improvement. Results show that the systematic application of these practices not only improves operational performance and material flow reliability but also fosters collaboration across teams. At the same time, challenges related to cultural adoption in a highly complex aerospace environment are identified, with strategies proposed to overcome resistance and support long-term transformation. From this perspective, Lean routines emerge as a key driver of continuous improvement, guiding organizations like Airbus toward more agile, competitive, and sustainable supply chain models.Escuela Técnica Superior de Ingeniería IndustrialUniversidad Politécnica de Cartagen
Europass CV for Biomedical Engineering
No full textThis resource guides learners through creating a Europass CV, including a video tutorial and multiple-choice questions that check understanding of account setup, key profile sections, formatting choices, and recommended file export. It also provides a detailed, editable Europass CV template tailored to biomedical and bioprocess roles, highlighting sections for work experience, education, language proficiency, digital competence, and additional information such as certifications and conferences
Bode plots on an oscilloscope: The old way vs. the new way
No full textThis resource introduces Bode plots as tools to assess stability via frequency response, explaining magnitude (gain in dB) and phase (degrees), gain margin and phase margin, crossover and corner frequencies, and factor contributions to slope and phase. It includes reading comprehension questions, pronunciation practice with audio terms, gap-fill exercises, discussion prompts, a video-based activity comparing traditional vs. automated oscilloscope Bode plotting, grammar tasks on conditionals, and a Kahoot review
Measurement dataset and Matlab codes for comparison of radio propagation channels in the W and D Bands for indoor environments [Dataset]
No full textThe files named medidas4_4_4__2025-02-12-xxxxxx contains the channel frequency response, with dimensions of 4×4×4×9285×14 for the D-band and 4×4×4×8092×14 for the W-band. The first dimension corresponds to the receiver uniform linear array (ULA). The second and third dimensions (4×4) represent the transmitter uniform rectangular array (URA). The fourth dimension contains the frequency samples measured by the VNA (9285 for the D-band and 8092 for the W-band). The fifth dimension (14) corresponds to the different positions at which the transmitting URA was placed.
D band
For the D-band, the relationship between the measurement files and the transmitter positions is defined as follows:
medidas4_4_4__2025-02-12-191858 Tx position 1
medidas4_4_4__2025-02-15-175116 Tx position 2
medidas4_4_4__2025-02-05-190501 Tx position 3
medidas4_4_4__2025-02-06-230621 Tx position 4 medidas4_4_4__2025-02-08-170519 Tx position 5
medidas4_4_4__2025-01-30-131834 Tx position 6
medidas4_4_4__2025-01-31-193904 Tx position 7
medidas4_4_4__2025-02-04-145441 Tx position 8 medidas4_4_4__2025-01-22-184320 Tx position 9
medidas4_4_4__2025-01-24-132048 Tx position 10
medidas4_4_4_16384_2025-01-28-143716 Tx position p11
medidas4_4_4__2025-01-25-185634 Tx position p12
medidas4_4_4__2025-01-18-152908 Tx position p13
medidas4_4_4__2025-01-21-142107 Tx position p14
The MATLAB script D_band_full computes the K-factor, coherence bandwidth, frequency-response magnitude, RMS delay spread, and the parameters of the FI and CI models.
The MATLAB script D_band_models estimates the parameters of the FI, CI, CIF, and ABG path-loss models.
W band
For the W-band the relationship between the measurement file and the transmitter positions is defined as follows:
medidas4_4_4_8092_2025-07-03-190657 Tx position 1
medidas4_4_4_8092_2025-07-03-170215 Tx position 2
medidas4_4_4_8092_2025-07-03-144335 Tx position 3
medidas4_4_4_8092_2025-07-03-122031 Tx position 4
medidas4_4_4_8092_2025-07-02-181219 Tx position 5
medidas4_4_4_8092_2025-07-01-123100 Tx position 6
medidas4_4_4_8092_2025-07-01-152250 TX position 7
medidas4_4_4_8092_2025-07-02-154639 TX position 8
medidas4_4_4_8092_2025-06-30-183855 TX position 9
medidas4_4_4_8092_2025-06-30-160643 TX position 10
medidas4_4_4_8092_2025-06-30-205212 TX position 11
medidas4_4_4_8192_2025-06-26-204518 TX position 12
medidas4_4_4_8192_2025-06-27-133916 TX position 13
medidas4_4_4_8092_2025-06-30-113953 TX position 14
The MATLAB script W_band_full computes the K-factor, coherence bandwidth, frequency-response magnitude, RMS delay spread, and the parameters of the FI and CI models.
The MATLAB script W_band_models estimates the parameters of the FI, CI, CIF, and ABG path-loss models.
The MATLAB script D_W_full computes the K-factor CDF and the power delay profile (PDP) for both frequency bands.
The function calcula_RMS computes the RMS DS
The function coherence_bandwidth_frequency computes the coherence bandwithThis dataset is composed of a set of measurements and the code to analyze the measurements. The files named medidas4_4_4__2025-02-12-xxxxxx contain the channel frequency response, with dimensions of 4×4×4×9285×14 for the D-band and 4×4×4×8092×14 for the W-band. The first dimension corresponds to the receiver uniform linear array (ULA). The second and third dimensions (4×4) represent the transmitter uniform rectangular array (URA). The fourth dimension contains the frequency samples measured by the VNA (9285 for the D-band and 8092 for the W-band). The fifth dimension (14) corresponds to the different positions at which the transmitting URA was placed.Grant PID2022-136869NB-C32 funded by MCIN/AEI/10.13039/501100011033 and by “ERDF/EU.
Performance of MPTCP over emulated LEO satellite networks with ECMP routing
Full text linkLow Earth Orbit (LEO) satellite networks are gaining prominence in 6G and large-scale IoT infrastructures, where traffic patterns range from low-rate telemetry to bandwidth-intensive applications such as high-resolution sensing, edge-assisted computation, and real-time vehicular services. Next-generation LEO constellations are designed to support high-capacity connectivity and heterogeneous IoT/6G services, some of which demand sustained high throughput and strict reliability guarantees. Multipath TCP (MPTCP) offers a transport-layer solution by enabling simultaneous use of multiple paths through concurrent subflows. This paper evaluates MPTCP version 1 in a LEO environment using bLEO, a new emulation tool for LEO networks specifically developed by the authors for this work. bLEO is an eBPF-based emulator capable of handling heavily loaded, large-scale constellations while providing efficient real-time control of link delay and state dynamics. We demonstrate MPTCP integration in Linux, including default scheduler behavior and subflow configuration. Additionally, we leverage Equal-Cost Multi-Path (ECMP) routing via OSPF using FRRouting to distribute MPTCP subflows across multiple network paths. The experimental results reveal a fundamental trade-off between robustness and scalability in the Linux MPTCP scheduler: although it maintains session continuity under handovers and failures, it underutilizes available paths unless load conditions force progressive subflow activation, reflecting a conservative design that prioritizes reordering avoidance and performance stability over full multipath utilization. The proposed platform serves as a flexible foundation for evaluating transport-layer protocols in dynamic satellite scenarios.This publication is part of the project PID2023-148214OB-C21, funded by MICIU/AEI/10.13039/501100011033 and by ERDF/EU