Since your arrival in the 80 that sida goes through countless metaphors that legitimize the prejudice facing people affected, becoming a handicap the efforts of prevention and treatment of disease. So, people living with HIV tend to suffer a double victimization: the first, caused by the disease itself with its consequences, and the second with respect to the prejudice experienced, marginalizing them socially. ...
Wireless channel modeling is important to perform evaluations of radiofrequency signal propagation in a certain application; that is the case, for example, concerning the communication behavior between sensor nodes of a Wireless Sensor Network (WSN). Different simulators used signal propagation models to simulate the wireless channel. Considering a comparative study of some tools, in this research it was used t...
One of the main problems of the data acquired by the power utilities is the presence of outliers that affect the database of the measurements throughout the electrical system, damaging the analyzes of the distribution scenario. This work proposes a new module to complement the measurements made by the distributors. A detection technique and three outliers correction techniques were developed, based on fuzzy log...
The National Agency of Electric Energy (ANEEL) defined that the distributors must contract for each point of connection between the distributor system and the transmitter the necessary demand for the use of its electric system, this contracting is known as the amount of use of the transmission system (MUST). From these amounts, the transmission network usage tariffs are defined, thus establishing the transmissi...
Biosolid is a residue that can be used in agriculture for fertilizer purposes. Until 2010, this waste was mainly destined to landfills in Brazil. However, under Brazilian law 12,305 / 2010, which instituted the National Solid Waste Policy, the disposal of biosolids to landfills was prohibited. Biosolid is a residue rich in nutrients and organic matter, and can be used for fertilization in various crops. The pre...
Of the forest resources available in the Brazilian Semi-arid, firewood and coal are the most used. The State of Paraíba points to a reality with a large dependence on firewood and charcoal as an energy matrix, both in the domestic and industrial sectors in its production processes. The Sustainable Forest Management Plans (PMFS) are a way to manage the use of forests in a conscious way, ensuring the sustainabili...
The increased demand for natural resources, especially energy and water, has expanded the pressures on the environment. Several water treatment systems already exist or have been developed in order to reduce degradation of the aquatic ecosystem and facilitate the access to water reserves. There are, however, simple and natural techniques - such as phytoremediation - that use resources from the environment itsel...
The purpose of this work was to understand the dynamics of climate evolution inherent to the Sertão Paraibano mesoregion, in order to verify the effects of its changes on the potential of electricity production by renewable sources, in particular solar photovoltaic and hydraulic, since these depend on natural resources that may be influenced by climatic conditions. The Sertão Paraibano mesoregion has social, ec...
According to the International Energy Agency/USA (IEA): “a smart grid (SG) is an electricity grid that uses digital technology to monitor and manage the transportation of electricity from all sources of generation, finding a variety of demands and users. These networks will be able to coordinate the needs and capabilities of all generators, operators, end-users and stake holders of the electricity market in ord...
Given the current technological growth and the integration of the alternative energy generation, it is observed that the development in the areas of power electronics and control, has been leveraging the electric sector through devices capable of processing high levels of power besides guaranteeing a high level of power quality, with minimum harmonic distortion and high power factor.In this sense,power converte...