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A simple methodology for estimating battery lifetimes in Solar Home System design
(2017)
The proliferation of Solar Home Systems (SHS) in recent times hopes to provide an alleviating solution to the global problem of energy poverty. Battery is usually the most expensive but important part of an SHS; it is also ...
Assessing the Total Cost of Ownership of Electric Vehicles in the Costa Rican Market
(2021)
This article aims to describe how the electric vehicle market operates in Costa Rica. Different government policies have been defined in order to promote the insertion of electric vehicles. With the existing public charging ...
OpenDSS-Based Distribution Network Analyzer in Open Source GIS Environment
(2016-09-21)
The adoption of low carbon technologies (e.g., photovoltaic systems) is expected to increase in the near future given their contribution to reduce greenhouse gas emissions. However, high penetrations of these new technologies ...
Distribution Network Model Builder for OpenDSS in Open Source GIS Software
(2016-09-21)
This paper presents a tool to automatically generate distribution network models for the power engineering software OpenDSS. The tool was developed in a free and open source Geographical Information System (GIS) software ...
A performance evaluation of several artificial neural networks for mapping speech spectrum parameters
(2020)
In this work, we compare different neural network architectures, for the task of mapping spectral coefficients of noisy speech signals with those corresponding to natural speech. In previous works on the subject, fully-connected ...
Decentralised wireless networked model predictive control design for wind turbines
(2020-10-08)
An innovative Decentralised Wireless Networked Model Predictive Control (DWNMPC) is presented to regulate wind turbines speed and compensate the effect of communication constraints such as dropouts. A decentralised control ...
Control over networks: A case study of Wastewater Treatment Plants
(2022-12)
A control over the network for an activated sludge wastewater treatment plant (WWTP) is presented. A predictive PID control algorithm is applied to the dissolved oxygen concentration in the aerated tank and to the nitrate ...
Enhancing speech recorded from a wearable sensor using a collection of autoencoders
(2020)
Assistive Technology (AT) is a concept which includes the use of technological devices to improve the learning process or the general capabilities of people with disabilities. One of the major tasks of the AT is the ...
Identification of Costa Rican speaker’s age group based on acoustic vowel analysis
(2022-04-22)
The identification of the speaker’s age is a fundamental task in human-computer interaction. In particular, the recognition of children has drawn attention from the research community due to the vulnerability of se persons ...
LSTM deep neural networks postfiltering for improving the quality of synthetic voices
(2016)
Recent developments in speech synthesis have produced systems capable of providing intelligible speech, and researchers now strive to create models that more accurately mimic human voices. One such development is the ...