Results 31 to 40 of about 211,581 (163)

VALORACIÓN DE PROGRAMAS DE IMPLEMENTACIÓN DE GENERACIÓN DISTRIBUIDA EN SISTEMAS DE POTENCIA CONSIDERANDO PERFIL DE TENSIONES Y SEGURIDAD

open access: yesRevista Politécnica, 2019
En este artículo se presenta una metodología para valorar programas de implementación de generación distribuida (GD) en sistemas de potencia. La valoración de los programas se hace a través de diferentes índices que consideran la cargabilidad y el perfil
Carlos Andrés Tamayo   +2 more
doaj   +1 more source

Graphene Oxide as an Auxiliary UV Photoprotector for Polypropylene

open access: yesPolymer 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

A Hardware‐in‐the‐Loop and 3D Simulation Framework for Active Learning in Engineering Education

open access: yesComputer 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

Ingeniería Eléctrica

open access: yesIngeniería e Investigación, 2002
Se presenta el índice de temas publicados en la Revista Ingeniería e Investigación en el área de Ingeniería eléctrica hasta el año 2002.
Revista Ingeniería e Investigación
doaj  

Soiling and other optical losses in solar-tracking PV plants in Navarra [PDF]

open access: yes, 2011
Field data of soiling energy losses on PV plants are scarce. Furthermore, since dirt type and accumulation vary with the location characteristics (climate, surroundings, etc.), the available data on optical losses are, necessarily, site dependent.
Duffie   +6 more
core   +2 more sources

Skeleton‐Based Posture Recognition for Home Care From Virtual Unmanned Aerial Vehicle

open access: yesExpert 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

30 años de realizaciones

open access: yesIngeniería 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  

Fuel cells with lifting converters for alternative energies [PDF]

open access: yesRevista Científica de Ingeniería Energética, 2019
The need for energy in the world has led to the search for new ways of electric power generation, among which is the use of fuel cells as a renewable source that does not contribute to environmental pollution and has high efficiency in ...
Francisco Eneldo López Monteagudo   +7 more
doaj  

Desempeño de inversores multinivel para energías renovables, una alternativa a la generación distribuida en México

open access: yesRevista 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
doaj  

Fuzzy Regression VS. Ordinary Least Squares Regression: Case Study

open access: yesRevista 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

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