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Experimental study on transfer learning in denoising autoencoders for speech enhancement
(2020)
The quality of speech signals is affected by a combination of background noise, reverberation, and other distortions in real-life environments. The processing of such signals presents important challenges for tasks such ...
Selecting a suitable battery technology for the photovoltaic battery integrated module
(2019-10-31)
The use of batteries is indispensable in stand-alone photovoltaic (PV) systems, and the physical integration of a battery pack and a PV panel in one device enables this concept while easing the installation and system ...
Quantifying the benefits of a solar home system-based DC microgrid for rural electrification
(2019)
Off-grid solar home systems (SHSs) currently constitute a major source of providing basic electricity needs in un(der)-electrified regions of the world, with around 73 million households having benefited from off-grid solar ...
Robustness of LSTM neural networks for the enhancement of spectral parameters in noisy speech signals
(2019)
In this paper, we carry out a comparative performance analysis of Long Short-term Memory (LSTM) Neural Networks for the task of noise reduction. Recent work in this area has shown the advantages of this kind of network for ...
Factores determinantes en la escogencia de la carrera de Ingeniería Química en la Universidad de Costa Rica
(2021-08)
El lento crecimiento en la matrícula de mujeres en las carreras de ingeniería ha motivado desde Mujer en la Ingeniería a preguntarse ¿por qué pasa esto?, sin embargo, una de las carreras que típicamente tiene paridad de ...
Análisis de estabilidad de un sistema no lineal con controladores PD inmune
(2022-04)
Este trabajo presenta el análisis y deducción de las condiciones que garantizan la estabilidad de un sistema de primer orden implementando un controlador PD en conexión con una no linealidad sectorial general usando el ...
A comparison of bio-inspired optimization methodologies applied to the tuning of industrial controllers
(2016-11-09)
A comparison of different bio-inspired methods is presented for the problem of tuning the
parameters of a PID industrial controller for second order plus time delay plants. The compared algorithms are representative of ...
Exploring the boundaries of Solar Home Systems (SHS) for off-grid electrification: Optimal SHS sizing for the multi-tier framework for household electricity access
(2019-04-15)
With almost 1.1 billion people lacking access to electricity, solar-based off-grid products like Solar Home Systems (SHS) have become a promising solution to provide basic electricity needs in un(der)-electrified regions. ...