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1
artículo
Publicado 2020
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The electric transmission system is the infrastructure that allows the transfer of energy from the production points to the consumption centers. It has the characteristic of regulated natural monopoly. For efficiency and economic equity in the electricity market, it is necessary that both the electrical losses and the costs incurred in the transmission process be properly distributed among all the agents that make use of this system. That is why around the world a series of methodologies have been developed that allow the regulators of the electrical system to set the transmission rates that assure their owners to recover the costs incurred in the construction, operation and maintenance and allow the efficient development of the Long-term network. In this context, this article reviews the different methodologies for assigning electrical losses and transmission costs at national and inter...
2
artículo
Publicado 2020
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The electric transmission system is the infrastructure that allows the transfer of energy from the production points to the consumption centers. It has the characteristic of regulated natural monopoly. For efficiency and economic equity in the electricity market, it is necessary that both the electrical losses and the costs incurred in the transmission process be properly distributed among all the agents that make use of this system. That is why around the world a series of methodologies have been developed that allow the regulators of the electrical system to set the transmission rates that assure their owners to recover the costs incurred in the construction, operation and maintenance and allow the efficient development of the Long-term network. In this context, this article reviews the different methodologies for assigning electrical losses and transmission costs at national and inter...
3
artículo
Publicado 2019
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In this work three mathematical models of transmission lines are shown, the most used, to simulate electromagnetic transients in power systems. In addition, its main characteristics, advantages and disadvantages are mentioned. Likewise, the algorithms are shown in the form of flow charts for the simulations of the transients. Finally, the results of simulations of maneuvering surges in a single-phase transmission line using the MATLAB software are shown.
4
artículo
Publicado 2019
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In this work three mathematical models of transmission lines are shown, the most used, to simulate electromagnetic transients in power systems. In addition, its main characteristics, advantages and disadvantages are mentioned. Likewise, the algorithms are shown in the form of flow charts for the simulations of the transients. Finally, the results of simulations of maneuvering surges in a single-phase transmission line using the MATLAB software are shown.
5
artículo
Publicado 2025
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The transmission plan includes binding projects approved by the Ministry of Energy and Mines, which must be implemented over a 10-year period to ensure the quality, safety and efficiency of the national electricity system. This planning is carried out within the framework of the state duty to ensure the efficiency and continuity of the electricity supply. This document evaluates the criteria of generality, innovation and consumption to determine whether the transmission plan is a normative or administrative act. The general character of the plan is reviewed in accordance with these criteria, which does not necessarily determine whether it is a rule or an administrative act, since there are acts that have a general character and rules with particular application. The plan is also derived from a law, but requires other acts to be implemented. Finally, the plan is ended by fulfilling its pu...
6
artículo
The Unified power flow controller (UPFC) is the most important contribution of the power electronics in the modern Electrical Power Systems. The UPFC is able to decouple the control of the active and reactive power sent trough the transmission line. This control is performed byinjecting in series with the transmission line a voltage with regulated magnitude and phase, generated by a PWM voltage source inverter (VSI). When the current flow in the line originate in the inverter an active and reactive power. The active part of the power require to be eithersupplied or absorbed by a device, e.g. a second inverter. In this paper, simulation result obtained with a fundamental model of UPFC connected to a simple AC transmission system, and a control system base on "dq" transformation necessary to obtained the P and Q decoupled control ispresented.
7
artículo
Publicado 2016
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The main objective on this research is the development of finding the optimal parameters for a routing algorithm for network routers based on the ant algorithm described as AntNet. The optimum parameters for this type of algorithm improve a more efficient alternative to those given by the RIP, EIGRP and OSPF routing protocols, to be applied in a data network. This shall be tested in two networks and routers defined, taking the same characteristics for the three groups: RIP, OSPF and by the result provided by the genetic algorithm implemented using a static network. The system recognizes the best path between networks of routers, based on the principle of AntNet networks or networks of ants, which are the best way from exploring almost all roads, using estimergia to go there and make optimal. MatLab was used to detect the best way. Later this road was implemented in a real network data, s...
8
artículo
Publicado 2016
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The main objective on this research is the development of finding the optimal parameters for a routing algorithm for network routers based on the ant algorithm described as AntNet. The optimum parameters for this type of algorithm improve a more efficient alternative to those given by the RIP, EIGRP and OSPF routing protocols, to be applied in a data network. This shall be tested in two networks and routers defined, taking the same characteristics for the three groups: RIP, OSPF and by the result provided by the genetic algorithm implemented using a static network. The system recognizes the best path between networks of routers, based on the principle of AntNet networks or networks of ants, which are the best way from exploring almost all roads, using estimergia to go there and make optimal. MatLab was used to detect the best way. Later this road was implemented in a real network data, s...
9
artículo
Publicado 2016
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The main objective on this research is the development of finding the optimal parameters for a routing algorithm for network routers based on the ant algorithm described as AntNet. The optimum parameters for this type of algorithm improve a more efficient alternative to those given by the RIP, EIGRP and OSPF routing protocols, to be applied in a data network. This shall be tested in two networks and routers defined, taking the same characteristics for the three groups: RIP, OSPF and by the result provided by the genetic algorithm implemented using a static network. The system recognizes the best path between networks of routers, based on the principle of AntNet networks or networks of ants, which are the best way from exploring almost all roads, using estimergia to go there and make optimal. MatLab was used to detect the best way. Later this road was implemented in a real network data, s...
10
artículo
Publicado 2016
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The main objective on this research is the development of finding the optimal parameters for a routing algorithm for network routers based on the ant algorithm described as AntNet. The optimum parameters for this type of algorithm improve a more efficient alternative to those given by the RIP, EIGRP and OSPF routing protocols, to be applied in a data network. This shall be tested in two networks and routers defined, taking the same characteristics for the three groups: RIP, OSPF and by the result provided by the genetic algorithm implemented using a static network. The system recognizes the best path between networks of routers, based on the principle of AntNet networks or networks of ants, which are the best way from exploring almost all roads, using estimergia to go there and make optimal. MatLab was used to detect the best way. Later this road was implemented in a real network data, s...
11
artículo
Publicado 2022
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Introduction: The elimination of malaria is the definitive solution to prevent the growing resistance to drugs and insecticides from threatening the progress made since the beginning of the 21st century. Objective: To analyze the spatio-temporal characteristics of malaria transmission in the Loreto region. Methods: We carried out a time series study, and the weekly incidence of malaria in Loreto in the last 20 years (2000-2019) was analyzed using data from the Epidemiological Surveillance System of the Ministry of Health. With this information, we modeled the weekly incidence of malaria across the Loreto surveillance reporting units and determine its spatio-temporal characteristics at the macro and micro-regional levels. Additionally, we characterized the “hot zones” and their stability over time. Results: During the last 20 years, we observed that Loreto has a seasonal malaria trans...
12
artículo
Publicado 2021
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In this research is analyzed COVID-19 transmission by thermodynamic and energy balance between geographic areas and its correlation with possible COVID-19 transmission between 2 persons at least. In order to achieve parameters for medical doctors, as for example the minimal distance among two infected people, who have this virus, there were designed mathematical models that were based in statistical data to get information of COVID-19 propagation as the dependence on temperature of geographic areas, moreover the thermal effect of the minimal distance between two people avoiding COVID-19 infection. With this work, answers are sought to the questions: if it could be possible to find a relation between temperature and virus transmission? Or if it could be possible to get a correlation variable among thermal variables with minimal distance separation (it was described above) for two people? ...
13
artículo
Publicado 2025
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Canine visceral leishmaniasis (CVL), caused by Leishmania infantum (Ross, 1903), is an emerging disease in Uruguay, posing significant public and animal health challenges. This study aimed to evaluate the relationship between clinical signs and hematological, hepatic, and renal alterations in dogs seropositive for L. infantum in Uruguay. Canids were classified according to the absence/presence of clinical signs as asymptomatic (no apparent signs of disease), oligosymptomatic (less than three clinical signs compatible with CVL), polysymptomatic (three to six clinical signs), and hypersymptomatic (with more than six clinical signs). Laboratory analysis revealed significant alterations in hematological, hepatic, and renal parameters as the number of clinical signs increased. Polysymptomatic and hypersymptomatic dogs exhibited significant decreases in erythrocytes, hemoglobin, hematocrit, me...
14
tesis de maestría
Publicado 2016
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Los dispositivos de radio tradicionales tienen una funcionalidad limitada que solo puede modificarse haciendo cambios en el hardware. En este sentido, cualquier mejora en la flexibilidad de un dispositivo de radio tradicional implica un aumento considerable en los costos de producción. Por otro lado, los sistemas de radio definidos por software (SDR) proporcionan una solución relativamente económica y efectiva, permitiendo múltiples funcionalidades que pueden mejorarse simplemente actualizando el software. El presente informe describe la implementación de cuatro sistemas SDR mediante el uso de una computadora portátil con el software GNURadio, una placa transmisora de RF y un dispositivo receptor de RF de bajo costo. Este trabajo se centra en el diseño de transmisores y receptores que pueden realizar técnicas de modulación para señal analógica (FM) y señal digital (QPSK).
15
artículo
Publicado 2021
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In this paper, we consider a modified SIR model, implementing a population of Pathogens interacting with a human population of Susceptibles, with which we will have 4 ordinary differential equations in our system. The objective of this work is to analyze the stability of the disease free point (local and global) and the endemic equilibrium point (local) of this mathematical model. In addition, numerical simulations to the model are presented to contrast the effects of nonlinear transmission rates and other parameters.
16
tesis de grado
Publicado 2025
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La crianza de camarones (Macrobrachium rosenbergii) en piscinas con comederos automáticos ha crecido en el Perú debido a la alta demanda de exportación [1]. Esta compleja actividad requiere el monitoreo constante de las condiciones del agua, distribución de los animales y la alimentación. El Internet de las cosas (IoT) es una red de dispositivos conectados a Internet capaces de comunicarse entre sí. Estos sistemas suelen sensar parámetros de interés mediante nodos de bajo consumo energético [2]. La tecnología LoRa (Long Range) permite una comunicación eficiente y de bajo costo para aplicaciones IoT en ciudades inteligentes, agricultura y automatización industrial [3]. La tecnología ha demostrado ser exitosa en contextos agrícolas por su flexibilidad y escalabilidad [4]. Este trabajo propone desarrollar una red LoRa con salida a Internet para conectar comederos automáticos ...
17
artículo
Aquaponics, a practice that combines aquaculture and hydroponics, offers a sustainable alternative for food production in areas with limited water resources, such as some regions of Peru. However, properly managing water parameters, which are essential to maintain the system's balance, remains a significant challenge. In this context, the study aimed to design and implement a remote monitoring system based on IoT to measure and control critical water parameters in an aquaponic fish farm in Tacna, Peru. The methodology included the development of a hardware infrastructure with pH, turbidity, temperature, and water level sensors, connected to an ESP32 LilyGO microcontroller with MQTT communication and equipped with a GSM/3G modem (SIM7000G). Additionally, software was designed for data collection, transmission, and cloud storage, enabling real-time monitoring and automated actions. The res...
18
artículo
Publicado 2023
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The study proposes the radio link, powered by photovoltaic solar energy, using wireless radios. The system allows the transmission of data for sensors located in high mountains. For the design, the Ubiquiti simulator was used, verifying the coordinates of the radio stations, evaluating the lines of sight between the separate stations. The total distance between Base Station B and Sensor Station S is approximately 23,852 Kilometers, with 04 radio links, in the free 5.8 Ghz band. This system allows a continuous operation of 24 hours with low levels of solar radiation energy, additionally it can support HD, IP video cameras.
19
artículo
Publicado 2011
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Estudiaremos el Comportamiento asintótico para un problema de transmisión nolineal con amortiguamiento localmente distribuido y con memoria en la frontera dado por el sistema siguiente, ...
20
artículo
Publicado 2011
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We will study the asymptotic Behavior for a problem of transmission nonlinear with damping locally distributed and with memory at the chosen to boundary for the system following,
