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Memoria Investigaciones en Ingeniería, Iss 30 (2026)
ISSN 2301-1092 · Universidad de Montevideo · 307 artikel di indeks
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Comparative Evaluation of Chemically and Green-Synthesized Silica-Modified CeO₂ Nanostructures for Time-Dependent Room-Temperature Ammonia Sensing
Silica nanoparticles were synthesized via two distinct routes – a conventional chemical process and a sustainable green approach using sugarcane bagasse – and incorporated into cerium oxide (CeO₂) nanostructures for comparative evaluation as room-temperature ammonia (NH₃) gas sensors. The chemical…
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System-Level Design and Outdoor Validation of a Solar-Powered Mobile Robot for Autonomous Environmental Monitoring
The need to explore and use mobile robots outside is rising, mainly in terms of monitoring the environment and conducting inspections outside grid resources, where energy autonomy, terrain variability, and communication are essential. The purpose of this paper is to propose an innovative…
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Effect of Hardfacing on the Damping Characteristics of ASTM A516 G70 Steel
This work systematically evaluates the influence of hardfacing on the damping behavior of ASTM A516 Grade 70 steel using AWS EF15, EFeCr-A1, and EFeMn-A electrodes, revealing a clear correlation between microstructural evolution and vibration damping performance. Elemental migration during…
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Modeling of 4G coverage using Matlab and validation with real measurements obtained through G-NetTrack
The purpose of this work is to model and validate 4G LTE coverage in "Las Villas," a residential area of Babahoyo, to determine the actual quality of service compared to theoretical propagation models. The method used was descriptive-comparative, non-experimental, and quantitative. It was based on…
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Low-cost embedded architecture for repeatable time control in electronic test stations
Automation of electronic test stations is often constrained by manual timing control, which introduces operator-dependent variability, extended cycle durations, and increased rework. This study presents a low-cost embedded system for automated and repeatable time control in electronic test…
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Simulation of fully developed laminar free convection flow between vertical parallel flat plates
This study presents a numerical investigation of laminar free convection between vertical parallel plates with asymmetric uniform wall temperatures. The right wall is maintained at a higher temperature than the left. Fluid enters the channel at a temperature less than or equal to the cooler wall…
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A Hybrid Thermodynamic–Machine Learning Approach for Flash Point Prediction of Binary Organic Mixtures
Flash point is a critical safety parameter indicating the lowest temperature at which a flammable liquid mixture can ignite. Accurate flash point estimation is essential for hazard prevention in chemical processing and fuel handling, yet experimental determination is time-consuming, costly, and…
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Additive Manufacturing of Cupric Oxide via Direct Ink Writing
The DIW approach offers numerous benefits, including expedited prototyping, cost-effectiveness, reduced waste in manufacturing, and enhanced design flexibility. It's currently a popular production method for building materials and has great potential for porous and electronic materials. In this…
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Ubicación Óptima de la Soldadura para Mayor Integridad en la Fabricación de Tubos Perfilados
La producción de tubos de gran diámetro con perfiles complejos, como estrellas de múltiples puntas, a menudo depende de tubos soldados debido a la escasez y alto costo de tubos sin costura. Sin embargo, la soldadura presenta una ductilidad entre un 5-10% menor que el metal base, aumentando el…
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Estudio termomecánico mediante el método de elementos finitos de los efectos de los parámetros de la soldadura SMAW en uniones de aceros disímiles S355J2+N / ASTM A572 Gr.50
Shielded Metal Arc Welding (SMAW) is widely employed in structural steel fabrication; however, the thermo-mechanical response of dissimilar structural steel joints remains insufficiently explored through numerical modeling. In this study, a three-dimensional transient thermo-mechanical finite…
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The Emergence of Trust as a Technical and Legal Concept
This paper traces the historical transformation of trust from a social and moral virtue into a technical and legal construct. Drawing on historical epistemology, it reconstructs how computer science in the late twentieth century redefined trust as a property of systems, protocols, and credentials…
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Optimization of the distribution of a hydrogen refueling network in Uruguay
In the context of the global commitment to mitigate climate change, as reflected in the Paris Agreement, and amid a growing trend towards more sustainable transportation systems, the development of infrastructure for hydrogen production and distribution emerges as a crucial component of the energy…
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Comparative Mechanical Characterization of Recycled PVC and Wood–Plastic Composites
Recycled polymers offer opportunities for circular material use, yet their mechanical performance is often limited by feedstock variability. This study provides a controlled comparison of neat recycled PVC and WPC (PVC + 20 wt.% wood flour) processed under identical extrusion and…
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Determining the correlation between line balancing and productivity: a proposal for process improvement
Line balancing (LB) is a key tool in lean manufacturing that optimizes task allocation, reduces downtime, and increases operational efficiency. This study was conducted in a manufacturing company in the industrial sector, evaluating four of its 19 assembly lines (21%) that presented low…
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Evaluación del Desempeño Sísmico de un Edificio Multifamiliar Ubicado en el Distrito de Surco, Lima; ante Diferentes Niveles de Amenaza, aplicando la Norma ATC – 40
El estudio evaluó el desempeño sísmico de un edificio multifamiliar en Surco, Lima, bajo diferentes niveles de amenaza sísmica, utilizando la norma ATC-40. Se empleó un enfoque cuantitativo, descriptivo y explicativo, modelando la estructura en software especializado y aplicando análisis estático…
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Mitigating Climate Change
Carbon capture and separation techniques (CCST) play a pivotal role in addressing the pressing challenge of reducing CO2 emissions and mitigating climate change impacts. This review paper provides a detailed examination of various CCST methodologies, focusing on their mechanisms, applications, and…
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Parametric Optimization of EN-31 Steel Using Electric Discharge Machining
This investigative study was conducted for the parametric optimization of EN-31 material by using a non-conventional machining known as Electric discharge machining (EDM). EN-31 is a steel alloy that is generally used in aerospace industry, automotive parts manufacturing, die making etc. because it…
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Design and Development of IoT-based Harvesting Robo-Vec
This article presents "Harvesting Robo-Vec" an IoT-based autonomous harvesting robot designed to enhance agricultural efficiency and precision. Integrating IoT technology with traditional methods, the robot automates tasks and offers real-time monitoring and control. It navigates crop fields…
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Artikel Jurnal
Enhanced Mobility Aid for the Visually Impaired
This study introduces a smart walking stick for the blind and visually impaired that uses ultrasonic sensors with Arduino and Raspberry Pi. The World Health Organization estimates that 37 million people worldwide are blind. People who are blind or visually impaired frequently rely on assistance…