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1
artículo
Publicado 2014
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In this paper the application of the Analytic Hierarchy Process (AHP) is described, and then the service providers cloud computing is identified. The first activity in multicriteria decision- making is to establish the factors that are important to that decision. This has been determined as criteria in selecting cloud providers: accessibility scalability, performance, security. The SEPROCCAHP v01 model has been applied for three groups of students in the course of business logistics. Two groups of students have selected Google, and a third group at Microsoft. The results differ because it depends on value judgments issued in the peer evaluation criteria and alternatives to select.
2
artículo
Publicado 2014
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In this paper the application of the Analytic Hierarchy Process (AHP) is described, and then the service providers cloud computing is identified. The first activity in multicriteria decision- making is to establish the factors that are important to that decision. This has been determined as criteria in selecting cloud providers: accessibility scalability, performance, security. The SEPROCCAHP v01 model has been applied for three groups of students in the course of business logistics. Two groups of students have selected Google, and a third group at Microsoft. The results differ because it depends on value judgments issued in the peer evaluation criteria and alternatives to select.
3
artículo
Publicado 2007
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La elección óptima de equipo en minería superfi cial es una tarea compleja donde intervienen muchas variables técnicas, geométricas y económicas en un ambiente donde existen muchas marcas, modelos y tamaños que compiten por el usuario. El técnico que efectúa la selección no tiene una herramienta apropiada que le permita evaluarlos y decidir por el mejor. La simulación contribuye a efectuar esta selección. En este estudio se desarrolla los modelos determinístico y probabilístico de simulación aplicados a equipos de minado con datos de dos operaciones superfi ciales. En el caso determinístico se simula la producción proyectada de un año de una cantera y en base a costo unitario mínimo se elige la fl ota de equipos tanto en perforación como en acarreo. En la simulación probabilística se usa el lenguaje GPSS para simular modelos de excavación y acarreo para varias comb...
4
tesis de grado
Publicado 2022
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Universidad Nacional Agraria La Molina. Facultad de Zootecnia. Departamento Académico de Producción Animal
5
tesis de grado
Publicado 2023
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En el ámbito de la construcción en los últimos tiempos se ha visto en la obligación de buscar soluciones eco amigables, a razón de compatibilizar con la sostenibilidad ambiental y disminuir la dependencia del uso de recursos fósiles. Un proceso considerado por muchos como una de las tecnologías facilitadoras de la digitalización en el sector de la construcción, con gran potencial para mejorar la sostenibilidad de los proyectos a lo largo del ciclo de vida del edificio, es el uso de Building Information Modeling (BIM). Es por ello que se buscaba analizar el uso de la metodología BIM aplicado en el análisis energético de edificios. Metodológicamente fue documental y no experimental, se aplicó un diagrama prisma para seleccionar 15 artículos que brindaron información importante del tema. Con ello se llegó a la conclusión de que el uso de la metodología BIM aplicado en el ...
6
artículo
The general objective was to validate a Management Model for research in the Faculty of Chemical Engineering and Food Industry at Pedro Ruiz Gallo National University, through expert judgment. This model seeks to improve the relevance of teachers‟ researching works and the graduates‟ thesis, to raise their applicability. It intends that researches should cover various scientific disciplines and their products should be innovative, that they can impact on the industry and able to be patented. The research was carried out in 2013, in the faculty of Chemical Engineering and Food Industries at Pedro Ruiz Gallo National University, Lambayeque. Prior to evaluate the Management Model for Research, it was essential to select people with experience in Management and Research, in order to confirm the real impact and the usefulness of the suggested model may have. The five selected experts for ...
7
artículo
Publicado 2021
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The use of allometric equations in the estimation of the commercial volume of wood allows to plan the management Forestry In that sense, the objective in this work was to select the best allometric models to estimate the volume of wood in G. crinita trees, for this, trees between 13.09 m high and 10.58 cm DAP were used on average. For the determination of the best model, the highest adjusted coefficient of determination R2 (˃ R2Aj), lower coefficient of variability (˂ CV%) and lower Furnival index (IF) were considered. Of the 17 existing allometric models for forest species, two were suitable, the model: ln (V) = a + b ln (D) (R2 = 0.93, CV = 11.93%, IF = 0.003444) and the model that uses the combined variable Log: ln (V) = a + b ln (D2*H) (R2 = 0.91, CV = 11.93%, IF = 0.003444), likewise, a third model proposed in this study: ln (V) = a + b ln (D2) + c ln (D * H) - d ln (D2*H) (R2 = 0...
8
artículo
Publicado 2021
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The use of allometric equations in the estimation of the commercial volume of wood allows to plan the management Forestry In that sense, the objective in this work was to select the best allometric models to estimate the volume of wood in G. crinita trees, for this, trees between 13.09 m high and 10.58 cm DAP were used on average. For the determination of the best model, the highest adjusted coefficient of determination R2 (˃ R2Aj), lower coefficient of variability (˂ CV%) and lower Furnival index (IF) were considered. Of the 17 existing allometric models for forest species, two were suitable, the model: ln (V) = a + b ln (D) (R2 = 0.93, CV = 11.93%, IF = 0.003444) and the model that uses the combined variable Log: ln (V) = a + b ln (D2*H) (R2 = 0.91, CV = 11.93%, IF = 0.003444), likewise, a third model proposed in this study: ln (V) = a + b ln (D2) + c ln (D * H) - d ln (D2*H) (R2 = 0...
9
artículo
Publicado 2022
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In order to determine the contribution of the sociodemographic, psychosocial and health variables to a prediction model of dementia in the elderly population, a secondary analysis was carried out with the data from the “Health, Well-being and Aging. Bogotá, 2012”, with 2000 men and women over 60 years of age from urban and rural areas of Bogotá. To select the sample, a probabilistic, multistage, conglomerate and stratified sampling was carried out, based on the 2005 National Census. The SABE questionnaire adapted for Colombia was used. According to the level of measurement of each variable and the distribution of the data, univariate and bivariate analyzes were performed, with dementia as a criterion variable and sociodemographic and health variables as predictors; 30 variables were included. It was found that 40.1% of the variance of dementia is explained by age, educational ...
10
tesis doctoral
Publicado 2025
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Maintaining the stability of bipedal walking remains a major challenge in humanoid robotics, primarily due to the large number of hyperparameters involved and the need to adapt to dynamic environments and external disturbances. Traditional methods for determining these hyperparameters, such as heuristic approaches, are often time- consuming and potentially suboptimal. In this thesis, we present an integrated approach combining advanced control and reinforcement learning techniques to improve the stability of bipedal walking, particularly in the face of ground disturbances and speed variations. Our main contribution lies in the integration of two complementary approaches: (1) an intrinsically stable model predictive control (IS-MPC) combined with whole-body admittance control, and (2) a reinforcement learning module implemented in the mc_rtc framework. This system allows for continuous mo...
11
artículo
Publicado 2019
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This paper initially describes aspects of the modeling of structures equipped with energy dissipators Shear Link Bozzo (SLB) and develops two iterative design procedures to select these devices. This methodology is applied to a precast 5-story reinforced concrete building. The SLB energy dissipation devices are initially stiff, but ductile with a range of yielding forces from 36 kN to 900 kN characterized by 52 + 52 standard devices. Moreover, these devices can be combined in parallel giving a very wide range of possibilities for selection and corresponding structural response. Therefore, to simplify its automatic selection, this article presents two procedures: (1) direct iteration and (2) inverse or fixed force iteration. Both procedures were implemented in an automatic application or “plugin” for the ETABS program that automates its selection for a specific structural system or ar...
12
tesis de maestría
Publicado 2023
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El concreto armado es el material más popular para edificaciones de altura en países en vías de desarrollo como el Perú. Uno de los insumos principales del concreto armado es el encofrado, cuyo costo representa alrededor de la tercera parte del costo total de la estructura de concreto armado (Johnston, 2014). En la actualidad el uso de encofrados modulares prefabricados es preferido por sobre otras opciones como encofrados de madera habilitados en obra por las ventajas en productividad y economía. Así mismo, los contratistas prefieren alquilar encofrados en lugar de comprarlos para evitar riesgos de inversión, y tener mayor flexibilidad para rentar los encofrados por tiempos y requerimientos específicos de cada proyecto. Seleccionar un proveedor de encofrados para un proyecto de edificaciones implica evaluar las propuestas desde el punto de vista técnico, económico y contractua...
13
artículo
Publicado 2022
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The objective of this article is to develop an ex novo model for selecting public relations and communication agencies, or agencies that provide public relations services, based on perceptions from communication managers who work for companies with the highest turnover in Spain and who belong to the Association of Directors of Communication-Dircom. We were inspired by the matrix model of rubrics for competency assessment (Goodrich, 2005). For this purpose, we sent a questionnaire and carried out a factorial analysis and a content analysis to know and classify the attributes that communication managers used when selecting a public relations and communication agency. Results indicate that communication departments consider criteria in the following order of priority: experience, special...
14
artículo
Publicado 2012
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The productivity of a rock charger operates on a front surface mining is influenced by many variables. We identified those considered most important and for a type charger model number measurements were taken in the field. Using linear regression expressions that allow predicting the dependent variable as a function of the independent variables were deducted. The dependent variables were identified : production tonnage , fill factor , and delay characteristics of the excavation. The independent variables were : bench height , boot size and fragmentation. Least squares system is used to predict the performance and cost given certain values of the remaining variables in the regression equation but there is the problem of selecting the dependent variable. Two or more variables in the system might seem equally dependent , since the process to test significance of the variable can be if...
15
artículo
Publicado 2012
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The productivity of a rock charger operates on a front surface mining is influenced by many variables. We identified those considered most important and for a type charger model number measurements were taken in the field. Using linear regression expressions that allow predicting the dependent variable as a function of the independent variables were deducted. The dependent variables were identified : production tonnage , fill factor , and delay characteristics of the excavation. The independent variables were : bench height , boot size and fragmentation. Least squares system is used to predict the performance and cost given certain values of the remaining variables in the regression equation but there is the problem of selecting the dependent variable. Two or more variables in the system might seem equally dependent , since the process to test significance of the variable can be if...
16
artículo
Publicado 2023
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In the canned fish production program, it is very important to calculate its forecast through statistical models that minimize the error of the projections and that allow estimating the quantities to be produced. The objective of this research work is to select a forecast model for the consumption of canned fish in Peru for an industrial fishing project using time series models. Prediction models such as linear regression, time series decomposition and Winters’ method were used. The input data was the monthly domestic sales of canned fish from the years 2011 to 2014. The prediction error measures such as the mean absolute deviation (MAD) and the mean absolute percentage error (MAPE) of the prediction of a company were compared for a year (2014), two years (2013-2014), three years (2012-2014) and four years (2011-2014) to validate with the prediction for the years 2015-2019. The predict...
17
artículo
Publicado 2021
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The genotype by environment interaction (IGA) is the main limitation to select the best genotypes for different environments. The objective of this study was to use the additive main effects and multiplicative interaction (AMMI) model to evaluate the IGA of 25 varieties of starchy maize. The information was generated in four trials established in contrasting environments in the province of Tayacaja, Peru, in the 2019-2020 crop cycle. The 5x5 alpha lattice design was used, with three replications, where the experimental units consisted of two rows 4 m long, with spatial arrangements of 0.80 m between rows and 0.20 m between planting points. The IGA was measured through the grain yield, adjusted to 15% humidity. Once the importance of the IGA in the experiments was verified, the multivariate analysis was carried out, to obtain the singular values of the AMMI terms that were significa...
18
artículo
Publicado 2025
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For the implementation of the HEARTS Approach Pathway for managing patients with chronic kidney disease (CKD) within the HEARTS initiative, the incorporation of disease control drivers based on the best available evidence is necessary, along with their respective maturity and performance indices. To this end, an interdisciplinary group was established to select the key evidence-based drivers of CKD control and to design a comprehensive scoringmethod tomonitoritsimplementation in primary care centers. Seven drivers were identified and grouped according to the components of disease management: two drivers focused on diagnosis, two on treatment, and one each in the following domains: continuity of care and follow-up, service delivery system, and performance evaluation system. These drivers will guide the quality improvement process with the objective of achieving CKD control targets at the ...
19
artículo
Publicado 2026
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La estimación precisa de la calidad del sitio es esencial para la planificación forestal, ya que permite proyectar el crecimiento, seleccionar áreas prioritarias y optimizar decisiones de manejo. En especies tropicales nativas, la disponibilidad de modelos de índice de sitio sigue siendo limitada, lo que dificulta el desarrollo de plantaciones sostenibles. Este estudio estimó el índice de sitio (IS) para Dipteryx ferrea y Simarouba amara mediante los modelos de Schumacher y Chapman-Richards. Se analizaron 48 árboles de D. ferrea (1 – 13 años) y 113 de S. amara (1 – 12 años) provenientes de plantaciones experimentales. El modelo Chapman-Richards mostró mejor ajuste para D. ferrea (R² = 0,948; RMSE = 1,007), mientras que el modelo Schumacher fue superior para S. amara (R² = 0,949; RMSE = 1,626). Se generaron curvas anamórficas con edad base de 10 años para la estimación ...
20
artículo
Publicado 2025
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The aim of this study was to validate the use of mathematical equations to predict the weight and yield of the carcass of guinea pigs based on their morphometric measurements. The following measurements were determined in 60 male and female guinea pigs aging 11 to 12 weeks: head width (AC), head length (LC), thoracic depth (PT, thoracic width (AT), body length (LM) and left leg thickness (EP), in addition to live weight (BW). Carcass weight (PC) and yield (RC) were estimated based on carcasses of animals slaughtered after 12 hours of fasting. A multiple regression model and the Stepwise Regression procedure of the SAS statistical software were used to select and assess the contribution of the biometric attributes in determining the prediction equation with optimal goodness-of-fit characteristics for the variables to be predicted. It was found that PV, AC and AT are the best predictors of...
