Listar por autor "Naya, Salvador"
Mostrando ítems 1-19 de 19
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A Logistic Approach for Kinetics of Isothermal Pyrolysis of Cellulose
López-Beceiro, Jorge; Díaz-Díaz, Ana-María; Álvarez García, Ana; Tarrío-Saavedra, Javier; Naya, Salvador; Artiaga, Ramón (MDPI, 2021-03)[Abstract] A kinetic model is proposed to fit isothermal thermogravimetric data obtained from cellulose in an inert atmosphere at different temperatures. The method used here to evaluate the model involves two steps: (1) ... -
An artificial-vision- and statistical-learning-based method for studying the biodegradation of type I collagen scaffolds in bone regeneration systems
Robles-Bykbaev, Yaroslava; Naya, Salvador; Díaz-Prado, Silvia; Calle-López, D.; Robles-Bykbaev, Vladimir; Garzón, Luis; Sanjurjo-Rodríguez, Clara; Tarrío-Saavedra, Javier (PeerJ, 2019-07-05)[Abstract] This work proposes a method based on image analysis and machine and statistical learning to model and estimate osteocyte growth (in type I collagen scaffolds for bone regeneration systems) and the collagen ... -
An educational environment based on digital image processing to support the learning process of biomaterials degradation in stem cells
Robles-Bykbaev, Yaroslava; Naya, Salvador; Tarrío-Saavedra, Javier; Díaz-Prado, Silvia; Sanjurjo-Rodríguez, Clara; Blanco García, Francisco J; Cornejo-Reyes, J.; Garzón, Luis; Calle-López, D. (IEEE, 2018-11-08)[Abstract] The Poly(DL-lactide-co-glycolide) copolymers (PDLGA) have designed and performed as biomaterials, taking into account their biodegradability and biocompatibility properties. These materials have a wide range of ... -
An expert system based on computer vision and statistical modelling to support the analysis of collagen degradation
Robles-Bykbaev, Yaroslava; Naya, Salvador; Díaz-Prado, Silvia; Calle-López, Daniel; Robles-Bykbaev, Vladimir; Garzón-Muñoz, Luis; Sanjurjo-Rodríguez, Clara; Tarrío-Saavedra, Javier (IntechOpen, 2018)[Abstract] The poly(DL-lactide-co-glycolide) (PDLGA) copolymers have been specifically designed and performed as biomaterials, taking into account their biodegradability and biocompatibility properties. One of the ... -
Application of residuals from purification of bivalve molluscs in Galician to facilitate marine ecosystem resiliency through artificial reefs with shells – One generation
Carral Couce, Luis; Lamas, M.I.; Buenhombre, José Luis Mier; Cartelle Barros, Juan José; Naya, Salvador; Tarrío-Saavedra, Javier (Elsevier, 2023-01-15)[Abstract] The seas and oceans of the planet provide a wide range of essential resources. However, marine ecosystems are undergoing severe degradation due to the unsustainable exploitation and consumption patterns of the ... -
Automatic detection of defective crankshafts by image analysis and supervised classification
Remeseiro, Beatriz; Tarrío-Saavedra, Javier; Francisco-Fernández, Mario; Penedo, Manuel; Naya, Salvador; Cao, Ricardo (2019)[Abstract]: A crankshaft is a mechanical component of an engine that performs a conversion of an alternative movement of a piston in a rotational motion of a shaft. It is a critical part and one of the most expensive of ... -
Case Study of Anomaly Detection and Quality Control of Energy Efficiency and Hygrothermal Comfort in Buildings
Eiras-Franco, Carlos; Flores, Miguel; Bolón-Canedo, Verónica; Zaragoza, Sonia; Fernández-Casal, Rubén; Naya, Salvador; Tarrío-Saavedra, Javier (2019)[Abstract] The aim of this work is to propose different statistical and machine learning methodologies for identifying anomalies and control the quality of energy efficiency and hygrothermal comfort in buildings. ... -
Constructing a Control Chart Using Functional Data
Flores, Miguel; Naya, Salvador; Fernández-Casal, Rubén; Zaragoza, Sonia; Raña, Paula; Tarrío-Saavedra, Javier (MDPI AG, 2020-01-02)[Abstract] This study proposes a control chart based on functional data to detect anomalies and estimate the normal output of industrial processes and services such as those related to the energy efficiency domain. Companies ... -
Estudio métrico sobre la actividad investigadora usando el software libre R: el caso del sistema universitario gallego
Tarrío-Saavedra, Javier; Orois, Elena; Naya, Salvador (Universidad Nacional Autónoma de México, 2017)[Resumen] Este trabajo representa una nueva alternativa para el estudio, clasificación y comparación de la producción científica de centros de investigación, utilizando las funciones de tratamiento de datos del paquete ... -
Local Correlation Integral Approach for Anomaly Detection Using Functional Data
Sosa, Jorge; Flores, Miguel; Naya, Salvador; Tarrío-Saavedra, Javier (MDPI, 2023-02-06)[Abstract]: The present work develops a methodology for the detection of outliers in functional data, taking into account both their shape and magnitude. Specifically, the multivariate method of anomaly detection called ... -
Modelling Operative and Routine Learning Curves in Manoeuvres in Locks and in Transit in the Expanded Panama Canal
Carral Couce, Luis; Tarrío-Saavedra, Javier; Vega Sáenz, Adán; Bogle, Johnny; Alemán, Gabriel; Naya, Salvador (Cambridge University Press, 2021-05)[Abstract] Piloting in the Panama Canal is exceptional as, due to its importance, the functions of the captains of vessels are taken over by pilots. Hence, prior to inauguration of the expanded canal, a limited number of ... -
Nonlinear regression model checking via local polynomial smoothing
Cao, Ricardo; Naya, Salvador (2007-05-14)A goodness-of-fitt test statistic for nonlinear regression models based on local polynomial estimation is proposed in this paper. The criterion used to construct the test is the distance between the parametric fitt and the ... -
Nuevas aplicaciones de la estimación paramétrica y no paramétrica de curvas al análisis térmico
Naya, Salvador (2003)[Resumen] Se propone la aplicación de modelos de regresión para la estimación de curvas procedentes del análisis térmico de materiales. Concretamente, se trata el problema de la implementación de estimadores ... -
Predicting rainfall and irrigation requirements of corn in Ecuador
Flores, Miguel; Llambo, Ángel; Loza, Danilo; Naya, Salvador; Tarrío-Saavedra, Javier (Elsevier Ltd, 2023-08)[Abstract]: This work is a case study whose objective is prediction of irrigation needs of corn crops in different regions of Ecuador; being this a fundamental basic food for the country's economy, as in the remaining ... -
Statistical Applications to Thermal Analysis
Cao, Ricardo; Naya, Salvador (Universidade da Coruña, 2005) -
Statistical degradation modelling of Poly(D,L-lactide-co-glycolide) copolymers for bioscaffold applications
Robles-Bykbaev, Yaroslava; Tarrío-Saavedra, Javier; Quintana-Pita, Sara; Díaz-Prado, Silvia; García Sabán, Francisco Javier; Naya, Salvador (PLOS, 2018-10-01)[Abstract] This methodology permits to simulate the performance of different Poly(D,L-lactide-co-glycolide) copolymer formulations (PDLGA) in the human body, to identify the more influencing variables on hydrolytic degradation ... -
Statistical Quality Control with the qcr Package
Flores, Miguel; Fernández-Casal, Rubén; Naya, Salvador; Tarrío-Saavedra, Javier (Technische Universitaet Wien, 2021)[Abstract] The R package qcr for Statistical Quality Control (SQC) is introduced and described. It includes a comprehensive set of univariate and multivariate SQC tools that completes and increases the SQC techniques ... -
The Complexity of Lignin Thermal Degradation in the Isothermal Context
López-Beceiro, Jorge; Díaz-Díaz, Ana-María; Álvarez García, Ana; Tarrío-Saavedra, Javier; Naya, Salvador; Artiaga, Ramón (MDPI, 2021-07)[Abstract] Thermal degradation of lignin in nitrogen atmosphere is evaluated by linear heating and isothermal tests. While linear heating suggests that thermal decomposition in the 200–400 °C range mainly consists of a ... -
TTS package: Computational tools for the application of the Time Temperature Superposition principle
Meneses Freire, Antonio; Naya, Salvador; Francisco-Fernández, Mario; López-Beceiro, Jorge; Gracia-Fernández, Carlos; Tarrío-Saavedra, Javier (Elsevier, 2023)[Abstract]: The TTS package has been developed in R software to predict the mechanical properties of viscoelastic materials, at short and long observation times/frequencies by applying the Time Temperature Superposition ...