Results 31 to 40 of about 40,978 (161)
Design and Validation of a Passive Solar Tracking Sensor Based on Gnomon Shadow Analysis
International Journal of Photoenergy, Volume 2026, Issue 1, 2026.Solar tracking is essential for efficiency, yet current market solutions present a trade‐off: Active systems are precise but expensive and computationally demanding, while low‐cost passive systems (e.g., LDRs) often lack accuracy. To address this gap, this work presents the design and validation of a passive solar tracking sensor based on gnomon shadow
Job Ordaz-Castillo +5 more
wiley +1 more source
Propuesta metodológica para la carrera Ingeniería Eléctrica ante los retos del Plan E [PDF]
, 2019 La política principal del plan de estudio E, a partir del documento base emitido por el Ministerio de Educación Superior (MES), plantea la reducción de la duración de las carreras a cuatro años en el curso regular diurno y a cinco años en el curso por ...
Moreno Campdesuñer, Ileana
core
Graphene Oxide as an Auxiliary UV Photoprotector for Polypropylene
Polymer Composites, Volume 46, Issue 16, Page 14986-15000, 10 November 2025.Auxiliary UV Protection. ABSTRACT This work presents the preparation and characterization of polypropylene (PP)/graphene oxide (GO) nanocomposites by adding photostabilizing additives to obtain materials with enhanced resistance to photodegradation. The synthesized GO (modified Hummers' method) was characterized using state‐of‐the‐art techniques.
Nathalia S. S. Amorim +3 more
wiley +1 more source
Ingeniería e Investigación, 1992 A continuación se hace una breve descripción del desarrollo que ha tenido, tanto el Departamento de Ingeniería Eléctrica como la Carrera de Ingeniería Eléctrica en la Universidad Nacional - Sede Bogotá - desde sus orígenes hasta la fecha, señalando en ...
Luis Alberto Olarte
doaj
Revista Científica de Ingeniería Energética, 2023 En la actualidad el empleo de sistemas de generación eléctrica a través de fuentes alternas de energía incrementa continuamente, debido al aumento de la demanda energética, reduciendo las emisiones de CO2.
Francisco Eneldo López Monteagudo +5 more
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Fuzzy Regression VS. Ordinary Least Squares Regression: Case Study
Revista de Matemática: Teoría y Aplicaciones, 2011 The objective of this paper is to disseminate the technique of fuzzy regression and to give a practical example of its use. To this end, classical regression is compared to several fuzzy regression models on a problem concerning the consumer confidence ...
Sergio Gerardo De los Cobos Silva +2 more
doaj +1 more source
A Hardware‐in‐the‐Loop and 3D Simulation Framework for Active Learning in Engineering Education
Computer Applications in Engineering Education, Volume 33, Issue 6, November 2025.ABSTRACT This paper describes the implementation of an industrial control system using the Hardware‐in‐the‐Loop (HIL) technique, integrating a Siemens S7‐1200 PLC with a virtual plant developed in Unity 3D, using the Modbus TCP communication protocol.
Jessica S. Ortiz +3 more
wiley +1 more source
CBIS-DDSM-R: A Curated Radiomic Feature Dataset for Breast Cancer Classification
DataEarly and accurate breast cancer detection is critical for patient outcomes. The Curated Breast Imaging Subset of the Digital Database for Screening Mammography (CBIS-DDSM) has been instrumental for computer-aided diagnosis (CAD) systems.
Erika Sánchez-Femat +8 more
doaj +1 more source
Skeleton‐Based Posture Recognition for Home Care From Virtual Unmanned Aerial Vehicle
Expert Systems, Volume 42, Issue 9, September 2025.ABSTRACT This article presents a novel approach for real‐time posture recognition in monitoring scenarios, utilising a virtual camera simulated on a UAV within virtual environments. Leveraging the MediaPipe Pose library, key points of the body skeleton are extracted, focusing on a subset of 8 key points for computational efficiency.
Andrés Bustamante +4 more
wiley +1 more source
Efectos y remedio de la expansión del hormigón de la presa "Baygorria"
Memoria Investigaciones en Ingeniería, 2008 La presa “Rincón de Baygorria”, situada sobre el río Negro (Uruguay) fue afectada a pocos años de su puesta en servicio por un fenómeno que comprometía seriamente la generación de su Central hidroeléctrica.
Julio Patrone
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