This work introduces an efficient procedure for measuring reactive power in single-phase systems in the presence of harmonic distortion. The measurement of reactive power is based on the application of the ADALINE network to estimate the voltage harmonics and, subsequently, to define a certain single-phase magnitude whose average value provides the reactive measurement. Two definitions of the reactive power have been considered: the reactive power of the fundamental harmonic Q1 and the well-known Budeanu reactive power QB, which is physically meaningless according to many studies. In addition, the proposed neural procedure of calculating the two reactive powers has been compared with other traditional methodologies for calculating Q, specifically, the application of FFT to voltage and current and the 90° voltage delay method. The new methodology has been applied to two laboratory case s...

Wetlands are important ecosystems found in the high Andean regions. Climate change and anthropic and anthropogenic activities have caused accelerated losses of this ecosystem. Through the opening of infiltration channels, the formation of artificial wetlands or the increase in the area of ​​natural wetlands has been promoted. This research analyzes the percentage of moisture, organic matter and soil porosity of two wetlands, one managed or artificial and other natural. The samples were collected in the acrotelm at different depths. According to the analysis, the natural wetland, Huachipampa, presents a porosity ranging from low to excellent, while the managed wetland, Tambo Real, presented a porosity ranging from very low to excessive. In relation to the analysis of organic matter, the soil of the Huachipampa wetland has a higher content of organic matter than the Tambo Real wetland....