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https://purl.org/pe-repo/ocde/ford#5.02.04
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https://purl.org/pe-repo/ocde/ford#2.00.00
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https://purl.org/pe-repo/ocde/ford#2.02.04
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Control de inventarios
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1
artículo
This article is studied the optimal control of distributed parameter systems applied to an environmental pollution problem. The model consists of a differential equation partial parabolic modeling of a pollutant transport in a fluid. The model is considered the speed with which the pollutant spreads in the environment and degradation that suffers the contaminant by the presence of a factor biological inhibitor, which breaks the contaminant at a rate that is not dependent on space and time.Using the method of Lagrange multipliers is possible to prove the existence solving the problem of control and obtaining optimality conditions for optimal control.
2
artículo
This article is studied the optimal control of distributed parameter systems applied to an environmental pollution problem. The model consists of a differential equation partial parabolic modeling of a pollutant transport in a fluid. The model is considered the speed with which the pollutant spreads in the environment and degradation that suffers the contaminant by the presence of a factor biological inhibitor, which breaks the contaminant at a rate that is not dependent on space and time.Using the method of Lagrange multipliers is possible to prove the existence solving the problem of control and obtaining optimality conditions for optimal control.
3
tesis de maestría
Publicado 2024
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En esta tesis de maestría, se aborda el problema de identificar los parámetros de ponderación en las funciones de coste definidas por un problema de control óptimo. Debido a la naturaleza del problema, abordado como un problema inverso, el enfoque de este trabajo es asegurar el buen planteamiento de los problemas de control óptimo inverso, un aspecto crucial que garantiza la viabilidad, unicidad y estabilidad de las funciones de coste estimadas. El estudio emplea la metodología del regulador cuadrático lineal (LQR) dentro de un sistema lineal. Un aspecto central de esta investigación es la determinación de los parámetros Q y R en el enfoque LQR, que desempeñan un papel fundamental en la definición de la eficiencia y la eficacia del sistema de control. La tesis examina cómo pueden elegirse óptimamente estos parámetros y el impacto que tienen en el rendimiento del sistema. A...
4
tesis de maestría
Publicado 2024
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En esta tesis de maestría, se aborda el problema de identificar los parámetros de ponderación en las funciones de coste definidas por un problema de control óptimo. Debido a la naturaleza del problema, abordado como un problema inverso, el enfoque de este trabajo es asegurar el buen planteamiento de los problemas de control óptimo inverso, un aspecto crucial que garantiza la viabilidad, unicidad y estabilidad de las funciones de coste estimadas. El estudio emplea la metodología del regulador cuadrático lineal (LQR) dentro de un sistema lineal. Un aspecto central de esta investigación es la determinación de los parámetros Q y R en el enfoque LQR, que desempeñan un papel fundamental en la definición de la eficiencia y la eficacia del sistema de control. La tesis examina cómo pueden elegirse óptimamente estos parámetros y el impacto que tienen en el rendimiento del sistema. A...
5
artículo
This paper presents an optimal control strategy for the Zika virus disease with sexual transmission. A mathematical model for the transmission of the Zika virus is considered with three preventive measures as control, namely: the prevention of the sexual contagion with the use of condoms and the orientation in the transmission of Zika in the homosexual and heterosexual relations, the campaigns against vectors and the protection of the society regarding the contagion by mosquito bites. We examine the implementation of various combinations of the control strategies in order to determine the most cost-effective one. The necessary conditions for the optimal controls are determined using Pontryaguin’s maximum principle and the optimality problem is solved using Runge-Kutta fourth order scheme. Based on the computational results, we conclude that the most efficient control strategy is when i...
6
artículo
This paper presents an optimal control strategy for the Zika virus disease with sexual transmission. A mathematical model for the transmission of the Zika virus is considered with three preventive measures as control, namely: the prevention of the sexual contagion with the use of condoms and the orientation in the transmission of Zika in the homosexual and heterosexual relations, the campaigns against vectors and the protection of the society regarding the contagion by mosquito bites. We examine the implementation of various combinations of the control strategies in order to determine the most cost-effective one. The necessary conditions for the optimal controls are determined using Pontryaguin’s maximum principle and the optimality problem is solved using Runge-Kutta fourth order scheme. Based on the computational results, we conclude that the most efficient control strategy is when i...
7
artículo
Publicado 2019
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Objective. To implement a Computer System to optimize the attendance control process of students of School of Systems and Computer Engineering from the Department of Engineering of Universidad de Huanuco, 2018. Methods. The research had an application level, of a technological type because information and communication technology were used for the development and application of this research. A pre-experimental design was used and it was applied in the same group with a pre-test and post-test. Population comprised of 12 students and 245 teachers from the Department of Engineering. The sample was determined in a non-probabilistic way, based on the number of users of the system of the School of Systems and Computer Engineering. Results. The optimization of the attendance control process of students of the School of Systems and Computer Engineering was demonstrated. In a pre-test, only 2.4 ...
8
tesis de grado
Publicado 2025
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Las máquinas de extrusión requieren un control preciso de la temperatura para maximizar el ahorro energético durante los procesos de fabricación y garantizar la calidad del producto. Este artículo presenta una nueva estrategia basada en aprendizaje automático (AA) para optimizar la regulación de la temperatura en tiempo real. El método sugerido aprende los patrones de comportamiento de las máquinas de extrusión en diversas condiciones de funcionamiento y ajusta dinámicamente los parámetros de tensión y temperatura para lograr una gestión más rápida y precisa. Los modelos y experimentos demuestran una reducción notable de las fluctuaciones de temperatura y una mejora notable del consumo energético en comparación con los métodos de control tradicionales. Además, mediante el aprendizaje automático, se puede anticipar cualquier irregularidad en el proceso, mejorando la ...
9
artículo
Publicado 2008
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The predictive control (MPC) is an advanced control strategy widely used in industrial processes. MPC is also one of the most active areas of research in the theory of control. Subjects such as optimality, stability and robustness are well known, especially for linear systems. However, despite this large adoption, both in the media industry and academics, little has been written about how these drivers are implemented in practice. This article tries to fill this gap, introducing the development of systems optimization and MPC, and discussing their integration into a hierarchical control structure. The proposed integrated control scheme is applied to the Tennessee Eastman plant, and the results show the effectiveness of the proposed strategy for optimal control of processes.
10
artículo
Publicado 2008
Enlace
Enlace
The predictive control (MPC) is an advanced control strategy widely used in industrial processes. MPC is also one of the most active areas of research in the theory of control. Subjects such as optimality, stability and robustness are well known, especially for linear systems. However, despite this large adoption, both in the media industry and academics, little has been written about how these drivers are implemented in practice. This article tries to fill this gap, introducing the development of systems optimization and MPC, and discussing their integration into a hierarchical control structure. The proposed integrated control scheme is applied to the Tennessee Eastman plant, and the results show the effectiveness of the proposed strategy for optimal control of processes.
11
tesis de grado
Publicado 2024
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The experimental research will be carried out in a consumption company in Perú. The main problem is the lack of traceability and pallet management in their distribution centers, which leads to an annual loss of 175 thousand dollars. The methodology used was the SLP, particularly the matrix of quantity, distance and effort with the objective of carrying out an adequate layout design and the implementation of a barcode for a correct management and tracking of the pallets. The research will be carried out in distribution center D, reducing the percentage of lost pallets by 18% and showing a savings of 32% in the supply of indirect materials at least annually.
12
tesis de grado
Publicado 2025
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Este articulo analiza como integrar la tecnología IoT en rectificadores industriales para optimizar el proceso de cromado, decapado de manera más productiva, eficiente y precisa para mejorar el tiempo de producción por manipulación humana y reemplazar el trabajo diurno por el monitoreo remoto y automatizado; obtener precisión en cuanto a calibración de parámetros y funciones en cromado y decapado de componentes hidráulicos mediante el sistema de agitación neumática, utilizando rectificadores DC y válvulas neumáticas, ya que estos regulan la corriente continua necesaria para realizar dicho proceso electroquímico. La implementación permite la monitorización vía servidor web utilizando un servidor HTTP independiente para cada componente; permitiendo la visualización de parámetros en tiempo real como voltaje, corriente, fallos de rectificador y temperatura, mientras un cont...
13
artículo
Publicado 2017
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The degree of spatial correlation between the regions shows that there is a contagion effect at the crime level, especially in the peripheral regions of Lima. A positive relationship has been found that progresses from region to region, from district to district, with positive trends and clear dependencies with income levels and population density, especially in the districts located in the cones, confirming that the model can contrast reality and predict future scenarios in terms of crime levels. Although the technology related to information storage is limited, we present an alternative for data collection and some codes for storing large volumes of data, especially those related to the georeferenced positions of high crime areas, which have served to find patterns of regional expansion of criminal acts, monitor them and propose alternatives for improvement.
14
artículo
Publicado 2021
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In the present work, necessary and sufficient optimality conditions are presented for the solution to a mínimum time problem. These conditions are established by the principle of the Pontryagin maximum, as a necessary and sufficient condition. In addition, the principle of the Pontryagin maximum is used in the search for the solution to an optimal control problem of mechanical origin.
15
tesis de grado
Publicado 2025
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In recent decades, Peru has experienced a 2.8% GDP growth, thanks to the gastronomic sector. Engaging in the food business has thus become a robust source of income for the country. Despite this, certain companies face internal issues related to the stocks managed by restaurants, as their staff lacks the necessary knowledge to handle inventory. This results in a 9.7% loss of sales within the sector, while the analyzed company incurs a 17% loss. For this reason, this article has developed a solution to this problem in a rotisserie chicken company, which lacks an inventory management system. Studies pinpoint the cause of stockouts to a poor estimation of consumer demand. However, this study consolidated, in addition to consumer behavior, other factors such as the proper planning of raw material purchases, their quality, the level of service provided by the restaurant, and supplier complian...
16
tesis de grado
Publicado 2024
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La robótica teleoperada en los últimos años ha demostrado ser un valioso apoyo en tareas de EOD; una mejora notable en los sistemas que controlan estos robots han sido las Interfaces Naturales de Usuario (NUI); sin embargo, la investigación que implementa este tipo de sistemas no se centra en la estabilidad de los movimientos del brazo robótico, necesaria para este tipo de aplicaciones debido al peligro que supone trabajar con explosivos. En este trabajo, proponemos la implementación de un Procesamiento Óptimo de Señales para una interfaz NUI basada en el controlador Leap Motion (LM). El objetivo principal de esta investigación es identificar correctamente los movimientos intencionados del operador, conseguir una alta estabilidad de la pinza robótica y suprimir los temblores fisiológicos de la mano del operador, considerando no aumentar la carga de trabajo mental y no disminui...
17
artículo
Publicado 2025
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The population dynamics of organisms are strongly influenced by life-history strategies that result from the optimal allocation of energy to vital functions such as growth, reproduction, and survival. These strategies, characterized by phenotypic traits, emerge as evolutionary adaptations to specific ecological conditions and define functional trade-offs relevant facing biotic and abiotic pressures. The aim of this study is to examine the link between life history and population dynamics from a bioenergetic perspective, articulating individual and population-level processes through mathematical models that capture adaptive decisions in simulated environments described in terms of constant, decreasing, and periodic resource availability over time. Using a discrete-time mathematical model with two state variables, internal energy and survival probability, energy allocation toward reproduct...
18
artículo
Publicado 2022
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The research project consists of the design and construction of a prototype of a two-axis solar tracking system, which is based on automation using Arduino IDE programming software with photoresistors for positioning the photovoltaic module, in order to optimize the capture of solar radiation. The result of the development of the experimental test has allowed concluding that the greatest power generation has been achieved by using an ACS712 sensor, achieving measurements of greater solar radiation between 10:00 a. m. and 5:00 p. m. of the day. Likewise, between 11:45 a. m. and 1:00 p. m. a current is produced that oscillates between 0,60 A and 0,62 A, achieving optimal performance and with the fixed position system 0,60 A is reached at 10:45 a. m. and it remains constant between 0,60 A and 0,62 A until 1:45 p. m. The average power obtained for the panel in a fixed position is 5,37 watts ...
19
artículo
Publicado 2022
Enlace
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The research project consists of the design and construction of a prototype of a two-axis solar tracking system, which is based on automation using Arduino IDE programming software with photoresistors for positioning the photovoltaic module, in order to optimize the capture of solar radiation. The result of the development of the experimental test has allowed concluding that the greatest power generation has been achieved by using an ACS712 sensor, achieving measurements of greater solar radiation between 10:00 a. m. and 5:00 p. m. of the day. Likewise, between 11:45 a. m. and 1:00 p. m. a current is produced that oscillates between 0,60 A and 0,62 A, achieving optimal performance and with the fixed position system 0,60 A is reached at 10:45 a. m. and it remains constant between 0,60 A and 0,62 A until 1:45 p. m. The average power obtained for the panel in a fixed position is 5,37 watts ...
20
artículo
Publicado 2023
Enlace
Enlace
Objective: To optimize the internal quality control of real-time RT-PCR for the qualitative detection of SARS-CoV-2, using the Cq values of negative and positive controls. Material and method: Prospective-longitudinal study. The sample consisted of 143 Cq values for the negative aliquot and extraction controls, as well as for the positive control. The normal distribution of Cq values was analyzed using the Anderson-Darling (AD) test and randomness tests were applied. Control limits were calculated from 51 Cq values, and then, using control charts, to monitor 92 Cq values obtained from November 2020 to March 2021. Lot acceptance and Cpk indices were evaluated as optimization indicators. The calculations were made with the Minitab program. Results: The batches of Cq values were accepted and Cpk indices higher than 1.33 were obtained for the three types of cont...
