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https://purl.org/pe-repo/ocde/ford#5.02.04
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1
tesis de maestría
This thesis proposes a novel approach for a nonlinear adaptive observer design applied to a reverse osmosis desalination plant. The considered mathematical model of the de- salination system includes nonlinearities of the states and the parameters that cannot be handled with previously published estimation methods which are based on the mod- ulating function technique. Therefore, the proposed real-time capable approach uses a decoupled parameter estimator and state observer. These estimates can be utilized for developing a controller or a fault detection system of the desalination plant with the aim of improving the quality and effort of fresh water production. The parameter estimator is composed of a convolution filter with modulating func- tions and the common Extended Kalman-Bucy Filter in order to estimate nonlinear parameters of a state-linear input/output relation. To receive a reg...
2
tesis de maestría
This thesis proposes a novel approach for a nonlinear adaptive observer design applied to a reverse osmosis desalination plant. The considered mathematical model of the de- salination system includes nonlinearities of the states and the parameters that cannot be handled with previously published estimation methods which are based on the mod- ulating function technique. Therefore, the proposed real-time capable approach uses a decoupled parameter estimator and state observer. These estimates can be utilized for developing a controller or a fault detection system of the desalination plant with the aim of improving the quality and effort of fresh water production. The parameter estimator is composed of a convolution filter with modulating func- tions and the common Extended Kalman-Bucy Filter in order to estimate nonlinear parameters of a state-linear input/output relation. To receive a reg...
3
artículo
Publicado 2016
Enlace
Enlace
There is at present in Peru an important concern in the knowledge society to respond to the demands of the productive sector already that during these last decades the specialties in each college were introduced on the initiative of the teachers, without any study of the labor market or the needs of the different regions, nor of the contributions of the industrial engineers to secondary education directly or indirectly. Currently not enough to have manual skills, but a set of capabilities that graduates will enable them to solve problems and perform in different posts or create their own businesses. The current approach that gives the education for the job is not geared toward this.Throughout the development of the chapters you will find also the references on the requirements of the industry by people trained in certain skills and on the other hand will be able to appreciate the strong ...
4
tesis de maestría
Publicado 2018
Enlace
Enlace
In modern industrial applications, sensors are an expensive part of installed systems. Nevertheless, many system variables cannot be measured sufficiently frequently or accurately. Thus, soft sensors have been developed to estimate those variables without the expense of additional hardware. The use of a soft sensor with a bias update term has shown to perform well for disturbed systems with time delays and multirate sampling times. In industrial application, the time delay and sampling times often vary. Yet, the case of variation of the time delay and sampling time in the bias update term has not been considered in previous publications. This thesis tests a soft sensor with bias update term in simulation and gives a modification yielding better performance. It is shown that the tested method gives unstable results. Hence, a more general method with a bias update term that considers all p...
5
tesis de maestría
Publicado 2018
Enlace
Enlace
In modern industrial applications, sensors are an expensive part of installed systems. Nevertheless, many system variables cannot be measured sufficiently frequently or accurately. Thus, soft sensors have been developed to estimate those variables without the expense of additional hardware. The use of a soft sensor with a bias update term has shown to perform well for disturbed systems with time delays and multirate sampling times. In industrial application, the time delay and sampling times often vary. Yet, the case of variation of the time delay and sampling time in the bias update term has not been considered in previous publications. This thesis tests a soft sensor with bias update term in simulation and gives a modification yielding better performance. It is shown that the tested method gives unstable results. Hence, a more general method with a bias update term that considers all p...
6
artículo
Publicado 2025
Enlace
Enlace
By fostering critical thinking and reflection regarding the media, educommunication empowers citizens to question media content, make informed decisions, engage in public debates and contribute to the strengthening of democracy. This article aims to present the design of a technopedagogical experience developed to promote critical information management among higher education students in Peru, contextualized within the sociopolitical crisis of 2022-2023. To implement this initiative, a website has been created that hosts four modules, which have been designed following the ADDIE protocol (Analysis, Design, Development, Implementation and Evaluation), an iterative framework of instructional design that allows the structured development of educational content. This experience involved the participation of 52 students from five higher education institutions. The results of the analysis indi...
7
artículo
Publicado 2025
Enlace
Enlace
By fostering critical thinking and reflection regarding the media, educommunication empowers citizens to question media content, make informed decisions, engage in public debates and contribute to the strengthening of democracy. This article aims to present the design of a technopedagogical experience developed to promote critical information management among higher education students in Peru, contextualized within the sociopolitical crisis of 2022-2023. To implement this initiative, a website has been created that hosts four modules, which have been designed following the ADDIE protocol (Analysis, Design, Development, Implementation and Evaluation), an iterative framework of instructional design that allows the structured development of educational content. This experience involved the participation of 52 students from five higher education institutions. The results of the analysis indi...
8
artículo
Publicado 2003
Enlace
Enlace
The systematizing of a design method developed by Relalliok W.B. (1981) is presented, for the calculation of the basic dimennsions of a catalytic incinerator of mixed channel, taking like reference the theorical development and case mentioned by Benitez J. (1993).
9
artículo
Publicado 2003
Enlace
Enlace
The systematizing of a design method developed by Relalliok W.B. (1981) is presented, for the calculation of the basic dimennsions of a catalytic incinerator of mixed channel, taking like reference the theorical development and case mentioned by Benitez J. (1993).
10
artículo
Publicado 2001
Enlace
Enlace
A packed-bed bioreactor was designed with immobilized cells on a ceramic inert support (instalox seats). The design equatlons, considering an ideal plug-flow tubular bloreactor, were solved with appropiate algorithms installed in Mathcad 7P, obtaining a volume of 10L for the appropiate desing restrictions. It was determinad that for small bioreactors it is not necessary to consider the pattern of axial disperslon and that the isothermic operation is possible for the hlgh degree of retromixing of coolant in the jacket.
11
artículo
Publicado 2001
Enlace
Enlace
A packed-bed bioreactor was designed with immobilized cells on a ceramic inert support (instalox seats). The design equatlons, considering an ideal plug-flow tubular bloreactor, were solved with appropiate algorithms installed in Mathcad 7P, obtaining a volume of 10L for the appropiate desing restrictions. It was determinad that for small bioreactors it is not necessary to consider the pattern of axial disperslon and that the isothermic operation is possible for the hlgh degree of retromixing of coolant in the jacket.
12
tesis de grado
Publicado 2025
Enlace
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The development of computational thinking as a cognitive skill is essential in this digital age; however, there is still no standard on how to define computational thinking or how to measure it. Therefore, the aim of the research is to develop an instrument that allows the estimation of the level of computational thinking using an evidence-centered design approach. The proposed approach combines cognitive theory, educational research and psychometric modelling to design a comprehensive and reliable assessment framework. The test includes two scenarios with a total of 59 items divided into 6 questions. It was validated by academics related to the scientific field, obtaining a final score of 0.76 as a content validity index. The test was administered to a sample of 100 students from 3 secondary schools in Lima, Peru, and analyzed using Bayesian confirmatory factor analysis and parametric t...
13
artículo
Publicado 2022
Enlace
Enlace
This article presents different approaches to user interface design through machine learning techniques. It reviews various approaches to interface design, such as combinational optimizers, frameworks, and free-of-text interface design. Moreover, it shows how interface design with machine learning techniques is based on usability and user experience (UX). Likewise, the design process uses interactions stored in persistence systems or databases, which are then analyzed with machine learning techniques. Another design approach uses sketches and graphic layouts and, after evaluating their usability, uses image recognition algorithms to generate the interfaces; these designs are generally for mobile devices. Some techniques also analyze usability but focus more on the user’s bodily functions (movement, biological functions such as blood pressure, heartbeat, etcetera); this data can also be...
14
artículo
Publicado 2022
Enlace
Enlace
This article presents different approaches to user interface design through machine learning techniques. It reviews various approaches to interface design, such as combinational optimizers, frameworks, and free-of-text interface design. Moreover, it shows how interface design with machine learning techniques is based on usability and user experience (UX). Likewise, the design process uses interactions stored in persistence systems or databases, which are then analyzed with machine learning techniques. Another design approach uses sketches and graphic layouts and, after evaluating their usability, uses image recognition algorithms to generate the interfaces; these designs are generally for mobile devices. Some techniques also analyze usability but focus more on the user’s bodily functions (movement, biological functions such as blood pressure, heartbeat, etcetera); this data can also be...
15
artículo
Publicado 2016
Enlace
Enlace
The objective of this work is to explain the design, simulation and implementation of a vibrometer that could measure the oscillatory frequency of a particular structure in a wide range. The possibility of measuring a large frequency range is obtained with a simple change of the model in Simulink. The design of the electronic scheme proposed is implemented using the Arduino platform, planned and simulated with the Simulink tool of MATLAB, with the advantages that this philosophy reports in the design. This results in a low-cost electronic scheme that utilizes a magnetic switch as a very simple and cheap magnetic transducer. Considering that the scheme utilizes a low percentage of the Arduino, this might be used in other acquisitions and processing of a system.
16
artículo
Publicado 2016
Enlace
Enlace
The objective of this work is to explain the design, simulation and implementation of a vibrometer that could measure the oscillatory frequency of a particular structure in a wide range. The possibility of measuring a large frequency range is obtained with a simple change of the model in Simulink. The design of the electronic scheme proposed is implemented using the Arduino platform, planned and simulated with the Simulink tool of MATLAB, with the advantages that this philosophy reports in the design. This results in a low-cost electronic scheme that utilizes a magnetic switch as a very simple and cheap magnetic transducer. Considering that the scheme utilizes a low percentage of the Arduino, this might be used in other acquisitions and processing of a system.
17
tesis de grado
Publicado 2024
Enlace
Enlace
Traditional construction and property companies often find themselves bound by conventional project management and design techniques, which can lead to delays during the design phase. This situation needs to be avoided. This study presents a process optimization for the design stage of multifamily buildings using Virtual Design Construction (VDC) - a collaborative project management approach. Focused on a case study involving two residential buildings developed by the same property company in Lima, Peru, this research commences with a comprehensive analysis of the existing design processes from the projects. By pinpointing key sources of variability and streamlining the design flow, the proposed VDC implementation aims to enhance compliance with project timelines and the approval of design drawings. The optimized process yielded tangible results, significantly reducing design time, compl...
18
artículo
Publicado 2005
Enlace
Enlace
One of the factors that determine the productivity inside a company is the state of the machinery with which is counted for the production. Our objective was to design a system that allows the engineers to supervise and to evaluate the state of the machinery, so that this in sot only repaired when it doesn't work, but rather one has the possibility to take a periodic registration of the operation of the same one. With it, it'll be possible to identify the flaws of the machinery in their diverse evolutionary phases. This will allow to carry out an appropriate correction of the problem diminishing the maintenance cost and, therefore, to stop the machinery for a smaller period of time. The system that we have designed in compound for a card of acquisition that will allow to capture and to transfer the mechanical vibrations of the machinery toward analysis software that allows the engineers ...
19
artículo
Publicado 2021
Enlace
Enlace
Como respuesta a la emergencia sanitaria, las instituciones de educación superior han tenido que migrar forzosamente a la virtualidad. Esto ha impactado en los agentes del entorno educativo, tanto en la enseñanza como en el aprendizaje. Por esta razón, en este artículo se analizarán las características particulares de la educación virtual y los principios de la enseñanza en este contexto. Asimismo, se describirán propuestas para diseñar experiencias educativas virtuales considerando las teorías motivacionales, del aprendizaje, y el diseño instruccional aplicado a la educación virtual. En esta misma línea, se discuten los retos que impone la pandemia para la educación universitaria y se proponen líneas de acción para la creación de experiencias educativas no presenciales. Se concluye que existe una necesidad imperante de capacitar a los profesores de tal manera que pueda...
20
artículo
Publicado 2006
Enlace
Enlace
Our location in the world makes us a country with a high seismic risk. Taking into account that the information produced during a seismic event is of vital importance for the study carried out by seismology, it is necessary to use the appropriate type of instrumentation to record these data. Currently, electronics provides the necessary technology for the study of phenomena of this type. The design and construction of a Digital Accelerograph will allow us to carry out a detailed study of a seismic movement and the effect caused on the structure of buildings. Finally, we can say that the construction of an instrument of this type at a low cost will allow repowering and increasing the CISMID accelerographic network and, in general, improve the knowledge of seismic phenomena at the national level.
