Browsing by Author "Naya, Salvador"
Now showing items 1-20 of 27
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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 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 ... -
Bootstrap-LOCI data mining methodology for anomaly detection in buildings energy efficiency
Tobar, Andrés; Flores, Miguel; Castillo-Páez, Sergio; Naya, Salvador; Zaragoza, Sonia; Tarrío-Saavedra, Javier (Elsevier, 2023-11)[Abtract]: An automated methodology is proposed to identify anomalies in buildings’ HVAC systems, through Local Correlation Integral (LOCI) algorithm, improved by Bootstrap to obtain a rule from its score distribution. ... -
Captación de talento con criterios del hrs4r. El programa Intalent
Naya, Salvador (Asociación Española de Psicología Conductual, 2019) -
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-Míguez, 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 ... -
Control y detección de anomalías de confort térmico y eficiencia energética en edificios a partir de variables autocorreladas
Barbeito, Inés; Zaragoza, Sonia; Tarrío-Saavedra, Javier; Naya, Salvador (Sociedad Española de Estadística e Investigación Operativa, 2023)[Resumen]: En este trabajo se presenta, de una forma intuitiva, paso por paso, la metodología propuesta en el artículo “Assessing thermal comfort and energy efficiency in buildings by statistical quality control for ... -
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 ... -
Functional extensions of Mandel's h and k statistics for outlier detection in interlaboratory studies
Flores, Miguel; Tarrío-Saavedra, Javier; Fernández-Casal, Rubén; Naya, Salvador (Elsevier B.V., 2018-05-15)[Abstract]: Functional data analysis (FDA) alternatives, based on the classical Mandel h and k statistics, are proposed to identify the laboratories that supply inconsistent results in interlaboratory studies (ILS). ILS ... -
IV Iberoamerican Congress of Naval Engineering—Summary
Carral Couce, Luis; Cartelle Barros, Juan José; Lamas, M.I.; Tarrío-Saavedra, Javier; Naya, Salvador (MDPI, 2023-12-12) -
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 ... -
Nuevo paradigma de big data en la era de la industria 4.0
Naya, Salvador (Colegio Oficial de Terapeutas Ocupaciones de Galicia, 2018-05-31)[Resumen]:Entre los cambios de paradigma que está suponiendo la llamada cuarta revolución industrial, también llamada Industria 4.0, se encuentra que los ciudadanos tenemos que convivir en un mundo cada vez más controlado ... -
Predicting lifetime of adhesive bonds for naval steel by time-temperature superposition
Rodríguez-Dopico, Francisco J.; Álvarez García, Ana; Tarrío-Saavedra, Javier; Meneses Freire, Antonio; Naya, Salvador (Elsevier, 2024-12-01)[Abstract] There is a lack of knowledge about the long-term behaviour of adhesive joints in the marine environment, and for hence, its reliability. The life cycle expected for a ship is twenty-five years and conduct duration ... -
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 ...