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1
tesis de grado
Publicado 2024
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The clinical analysis laboratory plays a crucial role in the diagnosis and prevention of diseases, consequently, the results of the examinations must be issued under optimal conditions of quality and precision that allow safe medical decisions to be supported. Accreditations such as ISO 15189 are instruments that allow laboratories to ensure, through their criteria and characteristics, results that meet quality standards, ensure traceability and have high reliability, furthermore, the analysis and application of this Standard contribute to the continuous improvement and optimization of resources in clinical laboratories, which generates greater productivity in the processes. In the present investigation, a simulation model of the laboratory service process in a medical center was designed to which proposed improvements were applied considering evaluated criteria of the ISO 15189 Standard...
2
artículo
Publicado 2015
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This paper considers the proposal, development and numerical simulation of a system that models the behavior of the treatment of HIV-1 using antiretrovirals. The system defined for three dependent variables of the variable t, denoted by X(t)=(x1 (t), x2 (t), x3 (t)) represent the amount of T Lymphocytes "Helpers" (CD4), number of Cytotoxic T Lymphocytes (CD8) Viral load and infection process of HIV-1 at any time t, respectively. The assembly consists of a Nonlinear Ordinary Differential Equations system whose existential domain represents time system evaluation process of infection and viral clearance in a patient with HIV-1. This set of states of Nonlinear Dynamic System, associated with the initial value condition is called Cauchy problem. There are few studies related to the solution of this system, found some of the study are reduced to two variables and others without obtaining the ...
3
artículo
Publicado 2015
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This paper considers the proposal, development and numerical simulation of a system that models the behavior of the treatment of HIV-1 using antiretrovirals. The system defined for three dependent variables of the variable t, denoted by X(t)=(x1 (t), x2 (t), x3 (t)) represent the amount of T Lymphocytes "Helpers" (CD4), number of Cytotoxic T Lymphocytes (CD8) Viral load and infection process of HIV-1 at any time t, respectively. The assembly consists of a Nonlinear Ordinary Differential Equations system whose existential domain represents time system evaluation process of infection and viral clearance in a patient with HIV-1. This set of states of Nonlinear Dynamic System, associated with the initial value condition is called Cauchy problem. There are few studies related to the solution of this system, found some of the study are reduced to two variables and others without obtaining the ...
4
artículo
Publicado 2020
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It is important for small growing textile companies to make key decisions based on accurate and reliable information about the present production process and how future changes could affect them. Using traditional mathematical methods it is not possible to accurately and reliably reflect the real stochastic behaviour of processes and activities carried out in this industry. There are, however, information technologies such as the computer simulation technique that allow such information to be obtained taking this behaviour into account.he research carried out a simulation study of the garment making process of a small textile company in order to propose a better distribution of resources by experimenting with a simulation model of the process, In addition, some of the quantitative information obtained with this technique is presented. The results obtained show that making changes in assi...
5
artículo
Publicado 1998
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Thermodynamic simulation models have been developed to observe the behavior of the minor elements Zn, Pb, As, Sb and Bi; as well as the major elements Cu, Fe, Si, 0 and S in the conversion and fusion processes: NORANDA and ISASMELT for the production of copper-rich mattes. The Noranda process shows a steady state model for obtaining a high-grade matte in metallic copper. The lsasmelt process is based on the concept of the two independent reaction sites in the bath (slag-killing interface): rapid oxidation and slow reduction. The heat balance of the process and the distribution thermodynamics of the minor elements are united and expressed in terms of the process variables such as temperature, enriched 02, composition of the charge, degree of matte and content of the magnetite in the Slag and other variables are incorporated into the modeling, which can predict the operating effects of che...
6
artículo
Publicado 1998
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Thermodynamic simulation models have been developed to observe the behavior of the minor elements Zn, Pb, As, Sb and Bi; as well as the major elements Cu, Fe, Si, 0 and S in the conversion and fusion processes: NORANDA and ISASMELT for the production of copper-rich mattes. The Noranda process shows a steady state model for obtaining a high-grade matte in metallic copper. The lsasmelt process is based on the concept of the two independent reaction sites in the bath (slag-killing interface): rapid oxidation and slow reduction. The heat balance of the process and the distribution thermodynamics of the minor elements are united and expressed in terms of the process variables such as temperature, enriched 02, composition of the charge, degree of matte and content of the magnetite in the Slag and other variables are incorporated into the modeling, which can predict the operating effects of che...
7
tesis de grado
Publicado 2023
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Agriculture is one of the most important economic activities in Peru. Furthermore, the Peruvian mango is the most important fruit as an export product on the European market due to its good quality. Three varieties of mango are cultivated in Peru: Haden, Kent and Tommy Atkins, each of them presents different characteristics; however, the production of this fruit is affected because manual processes are still used for its production, which generates a delay in the process due to the inaccuracy of the labour. The present study aims to develop the simulation of an automated grading system for Peruvian mangoes based on computer vision. On the other hand, to establish the process development, the transfer learning principle was analysed and a flow diagram of the system was made. The simulation of the system environment was obtained through the Factory IO software, together with the image proc...
8
tesis de grado
Publicado 2024
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Lemon exports are of great influence in Peru, since there is a great demand from countries such as the USA, Belgium and Holland. For this reason, the agricultural sector is one of the essential factors for the economic development of the country, since it generates S/29,553 million annually throughout the national territory. On the other hand, Peru offers two types of lemons, for example: the Tahitian lemon and the subtle lemon; however, due to its characteristics, the Tahitian lemon is the one that is sent as an export product worldwide. Currently, the selection process of this fruit is done manually, since there are not enough industrial optimizations in its process. Therefore, the present study aims to carry out the simulation of an automated grading system for Tahitian lemon based on computer vision. The selection parameters for the image processing were established as the levels of ...
9
tesis de grado
Publicado 2023
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The purpose of this research is to reduce the duration of processes and waiting times in the customer service modules of an educational institution. For this purpose, the use of the Lean Manufacturing methodology is proposed, following the framework formulated by the DMAIC sequence proposed by Lean Six Sigma, which consists of five consecutive stages: define, measure, analyze, improve and control; In each of them, the description, techniques, instruments, and validation are presented. Through an unstructured interview with customer service personnel and administrative staff, information was gathered to build a simulation model of the initial situation in the Arena 15.1 software. Then, three improvement alternatives were designed, and their results were compared with the original scenario, and it was concluded that the standardization of subprocesses and the hiring of additional personnel...
10
tesis de maestría
Publicado 2016
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The following work focuses on the kinematic and dynamic study of a four-wheeled robot, which is equipped with omnidirectional Mecanum wheels. The main objective of the thesis is to obtain a mathematical model from which both the kinematics and kinetics of the robot can be analyzed. Furthermore, the study presents a methodology to optimize the torques (and subsequent associated voltages) provided by each of the motors on the robot for a given trajectory. A system in which a non-powered trailer pulled by the robot is also analyzed at a kinematic level. In this stage, four different cases are considered. The construction of the trailer is also described on this work. In the first chapter, the global state of the art on analysis and control of omnidirectional robots (with focus on robots with Mecanum wheels) is presented. In the second chapter, the physical considerations for the general mov...
11
tesis de maestría
Publicado 2016
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The following work focuses on the kinematic and dynamic study of a four-wheeled robot, which is equipped with omnidirectional Mecanum wheels. The main objective of the thesis is to obtain a mathematical model from which both the kinematics and kinetics of the robot can be analyzed. Furthermore, the study presents a methodology to optimize the torques (and subsequent associated voltages) provided by each of the motors on the robot for a given trajectory. A system in which a non-powered trailer pulled by the robot is also analyzed at a kinematic level. In this stage, four different cases are considered. The construction of the trailer is also described on this work. In the first chapter, the global state of the art on analysis and control of omnidirectional robots (with focus on robots with Mecanum wheels) is presented. In the second chapter, the physical considerations for the general mov...
12
artículo
Publicado 2022
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This study proposes the simulation of a system for reducing polluting gases produced by a steel foundry by two-stage centrifugation. This simulation seeks to verify the physical principle of centrifugation in two cyclones (Stairmand and Swift types) in serial connection: one with its inlet at the outlet of the other, based on initial gas inlet conditions, as well as the design equations of this equipment. Likewise, it's intended to demonstrate the efficiency of this system by entering the mass composition of the gas, in particulate matter (PM) terms, measuring its new composition at the output, after simulating the gas and particle dynamics. For this, Ansys CFD and Ansys Fluent software are used (with previous data analysis and processing), and Python programming techniques to automate calculations and obtain the optimal design values for the cyclones. This system seeks to be an alternat...
13
artículo
Publicado 2019
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The performance of discrete element method (DEM) simulations is highly dependent on the requirements of the associated algorithms in terms of computer memory usage and CPU time. In particular, computer CPU time heavily depends on the identification of neighbor particles and the computation of particle-particle interactions. Over the years several neighbor particles searching methods have been developed. Accordingly, in this work the performance of two of well-known searching methods, linked cell and Verlet tables algorithms, are assessed in the context of the development of a new DEM-based tool. More specifically, the neighbor searching methods performance and related computational costs are parametrically analyzed and an assessment of their suitability for carrying the intended numerical simulations is provided. The referred numerical simulations are performed accounting for a canonical...
14
artículo
Connectivity pattern analysis for virtual simulation design, based on high-performance game analysis
Publicado 2021
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In the learning and training processes, simulation is taking a lot of strength due to the ease and recurrence that it allows us, managing to perform it repeatedly until reaching the necessary skills. We find simulation in different applications Such as doctors, in engineering, where what is tried is to reproduce the experimentation environment in a similar way, that is why we find today a number of applications, tools, programming languages, dedicated development environments to be able to implement simulation environments. The present work proposes a method to be able to analyze the connectivity patterns to be able to recommend the use and applications of the different types of networks, making an analysis of these connections in the realization of video games, in the study various video games that we can find were evaluated In the market, these video games have a particularity that wit...
15
tesis de maestría
Publicado 2013
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Parallel parking, in general, is a moderate difficulty maneuver. Moreover, for inexperienced drivers, it can be a stressful situation that can lead to errors such as stay far from the sidewalk or damage another vehicle resulting in traffic tickets that range from simple parking violation to crash-related violations. In this work, we propose a computationally effective approach to perform a collisionfree parallel parking. The method will calculate the minimum parking space needed and then the efficient path for the parallel parking. This method is computationally inexpensive in comparison with the current state of the art. Moreover, it could be used by any car because the parameters needed to perform all computations are taken from the specifications of real cars. Preliminary results of this work were summarized in [1] that was presented at the 15th International IEEE Conference on Intell...
16
tesis de maestría
Publicado 2013
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Parallel parking, in general, is a moderate difficulty maneuver. Moreover, for inexperienced drivers, it can be a stressful situation that can lead to errors such as stay far from the sidewalk or damage another vehicle resulting in traffic tickets that range from simple parking violation to crash-related violations. In this work, we propose a computationally effective approach to perform a collisionfree parallel parking. The method will calculate the minimum parking space needed and then the efficient path for the parallel parking. This method is computationally inexpensive in comparison with the current state of the art. Moreover, it could be used by any car because the parameters needed to perform all computations are taken from the specifications of real cars. Preliminary results of this work were summarized in [1] that was presented at the 15th International IEEE Conference on Intell...
17
artículo
Publicado 2025
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This work focused on proposing a plan for improvement and control of the customer service process in a customer service center, based on a waiting line analysis where it describes all the elements that interact in the system and a statistical analysis of processes to define the state in which it operates. Subsequently, the simulation of processes is applied to represent the system studied, and with it, to be able to evaluate different strategies for improvement and increase in productivity. The following strategies were evaluated: correction of the instability of customer service processes
18
objeto de conferencia
We present the simulation of the application of the Model-based Predictive Control (MPC) of the drum level in a Combined Cycle Plant in order to minimize the time for reaching the highest capacity of plant, around 225 MW. In contrast to others control techniques, our simulation yields that the MPC has shown capabilities as to reach its expected power in about 40 minutes before than PID, time which normally takes the whole industrial process under this control. In the present study, we have tested up to three different reference functions in order to compare performance during the drum level control. According to the simulations, the MPC working together with these reference functions is seen to be promising in the sense of providing efficiency to the plant from the startup until the time when system is reaching 225 MW. We have also calculated a minor discrepancy of order of lees than 5%.
19
artículo
Publicado 2025
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Information and communication technologies are helping to improve experiences in many areas, such as engineering, simulation, education. It is in the area of education, that thanks to the help of hardware and software, are allowing to improve the educational experiences, in the present work, we resort to the use of the Virtual Reality glasses of the Oculus Gest 2 model, with the Spatial application, applied to the learning of music. We present the architecture of the solution so that it can be replicated and scaled to other courses and subjects of study, we present how to configure each of the tools as well as the alternatives that can be worked in order to optimize resources, as a result we present the advantages and disadvantages of using Virtual Reality technology and recommendations to optimize its application so that it can be replicated and scaled to other applications.
20
artículo
Publicado 2018
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Filiación institucional de autor: Alejo Cochachín Rapre / Autoridad Nacional del Agua - Unidad de Glaciología y Recursos Hídricos (ANA-UGRH), Huaraz, Peru