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Browsing by Subject "Estimation"

Now showing items 1-20 of 32

Algoritmo para la detección de formas aplicable a la estimación solar

Aguilar-López, J. M.; García, R. A.; Camacho, E. F. (Universitat Politècnica de València, 2021-07-01)

[EN] This paper presents a bio-inspired hybrid algorithm for shape detection applicable to solar estimation in solar power plants. The objective is to locate and characterise the shape of a cloud over a solar power plant ...
An Update on Effort Estimation in Agile Software Development: A Systematic Literature Review

Fernández-Diego, Marta; Méndez, Erwin R.; González-Ladrón-de-Guevara, Fernando; Abrahao Gonzales, Silvia Mara; Insfran, Emilio (Institute of Electrical and Electronics Engineers, 2020)

[EN] Software developers require effective effort estimation models to facilitate project planning. Although Usman et al. systematically reviewed and synthesized the effort estimation models and practices for Agile Software ...
Asymptotic statistical analysis for model-based control design strategies

Esparza Peidro, Alicia; Agüero, Juan C.; Rojas, Cristian R.; Godoy, Boris I. (International Federation of Automatic Control, 2011)

In this paper, we generalize existing fundamental limitations on the accuracy of the estimation of dynamic models. In addition, we study the large sample statistical behavior of different estimation-based controller design ...
Biomass allocation of Norway spruce [Picea abies (L.) Karst] trees in managed and unmanaged mixed stands

Mena Costa, Juan José (Universitat Politècnica de València, 2013-04-11)

This study is aligned with the project presented by Kantor et al (2000) that is based on the monitoring of a series of 11 mixed stands of various species composition. It refers to permanent traditional thinning trial ...
Characterization of Viscoelastic Media Combining Ultrasound and Magnetic-Force Induced Vibrations on an Embedded Soft Magnetic Sphere

Cebrecos, Alejandro; Jimenez, Noe; Tarazona Tárrega, Rafael; Company, Miguel; Benlloch Baviera, Jose María; Camarena Femenia, Francisco (Institute of Electrical and Electronics Engineers, 2021-12)

[EN] We report a method to locally assess the complex shear modulus of a viscoelastic medium. The proposed approach is based on the application of a magnetic force to a millimeter-sized steel sphere embedded in the medium ...
Comparative study of speed estimators with highly noisymeasurement signals for Wind Energy Generation Systems

Carranza Castillo, Oscar; Figueres Amorós, Emilio; Garcerá Sanfeliú, Gabriel; González Morales, Luis Gerardo (Elsevier, 2011-03)

This paper presents a comparative study of several speed estimators to implement a sensorless speed control loop in Wind Energy Generation Systems driven by power factor correction three-phase boost rectifiers. This rectifier ...
Comprehensive Optimization of the Tripolar Concentric Ring Electrode Based on Its Finite Dimensions Model and Confirmed by Finite Element Method Modeling

Makeyev, Oleksandr; Ye Lin, Yiyao; Prats-Boluda, Gema; Garcia-Casado, Javier (MDPI AG, 2021-08-31)

[EN] The optimization performed in this study is based on the finite dimensions model of the concentric ring electrode as opposed to the negligible dimensions model used in the past. This makes the optimization problem ...
Copigmentación de antocianos: estimación e influencia en el color de vinos tintos del cultivar Graciano

Hernández-Hierro, José Miguel; Rivas-Gonzalo, Julián; Heredia, Francisco J.; Escribano-Bailón, Maria Teresa (Universitat Politècnica de València, 2013-07-01)

Una gran parte del color de los vinos tintos viene explicada por el fenómeno de la copigmentación, sobre todo cuando se trata de vinos jóvenes. Para su estimación el método más usado en la actualidad es el propuesto por ...
Detección y Localización de Ruptura Súbita mediante Transformada Wavelet Discreta y Correlación Cruzada

Trutié-Carrero, Eduardo; Valdés-Santiago, Damian; León-Mecías, Ángela; Ramírez-Beltrán, Jorge (Universitat Politècnica de València, 2018-03-05)

[ES] La ruptura súbita en los sistemas de distribución de agua provoca gran pérdida de este recurso natural, interrumpe el abastecimiento, daña las calles y edificaciones y aumenta la transmisión de enfermedades infecciosas. ...
Estimación de la velocidad y aceleración de un servomotor a partir de las medidas de un encoder incremental

Sebastián Narváez, Alejandro (Universitat Politècnica de València, 2019-11-08)

[ES] El uso de encoders en el mundo de la electrónica ha sido frecuente y útil. En este trabajo Fin de Grado hemos analizado la capacidad de dicho dispositivo electrónico para llevar a cabo la estimación de la velocidad y ...
Estimating flash flood discharge in an ungauged mountain catchment with 2D hydraulic models and dendrogeomorphic palaeostage indicators

Ballesteros Canovas, J. A.; Eguíbar Galán, Miguel Ángel; Bodoque del Pozo, José María; Díez-Herrero, A; Stoffel, M; Gutierrez-Pérez, I. (Wiley: 12 months, 2010)

There is still wide uncertainty about past flash-flood processes in mountain regions owing to the lack of systematic databases on former events. This paper presents a methodology to reconstruct peak discharge of flash ...
Estimating the number of segments for improving dialogue act labelling

Tamarit Ballester, Vicent; Martínez-Hinarejos, Carlos-D.; Benedí Ruiz, José Miguel (Cambridge University Press (CUP), 2012-01)

In dialogue systems it is important to label the dialogue turns with dialogue-related meaning. Each turn is usually divided into segments and these segments are labelled with dialogue acts (DAs). A DA is a representation ...
Estimation of a suitable Schmidt number range in diesel sprays at high injection pressure

Salvador Rubio, Francisco Javier; Ruiz Rosales, Santiago; Gimeno, Jaime; De La Morena Borja, Joaquín (Elsevier, 2011-09)

The aim of this paper is to estimate a suitable range for the Schmidt number value in non-evaporative diesel sprays. For this purpose, mass distribution data obtained from X-ray absorption experiments existing in literature ...
Estimation of shrub biomass by airborne LiDAR data in small forest stands

Estornell Cremades, Javier; Ruiz Fernández, Luis Ángel; Velázquez Martí, Borja; Fernández Sarriá, Alfonso (Elsevier, 2011-11-01)

The presence of shrub vegetation is very significant in Mediterranean ecosystems. However, the difficulty involved in shrub management and the lack of information about behavior of this vegetation means that these areas ...
Evaluación de algoritmos para la estimación del Round-Trip Delay Time y una propuesta de mejora

Docmac M., Daniel; Silva, Eduardo I.; González, Agustín J. (Universitat Politècnica de València, 2013-01-13)

[ES] En la literatura se han propuesto diversos algoritmos para la estimación del RTT (por sus siglas en inglés: Round-Trip Delay Time). Éstos buscan obtener un mejor desempeñ o que el del algoritmo de estimación adoptado ...
Evaluation of Bipolar, Tripolar, and Quadripolar Laplacian Estimates of Electrocardiogram via Concentric Ring Electrodes

Garcia-Casado, Javier; Ye Lin, Yiyao; Prats-Boluda, Gema; Makeyev, Oleksandr (MDPI AG, 2019-09-01)

[EN] Surface Laplacian estimates via concentric ring electrodes (CREs) have proven to enhance spatial resolution compared to conventional disc electrodes, which is of great importance for P-wave analysis. In this study, ...
Guest Editorial Special Section on Advanced Signal and Image Processing Techniques for Electric Machines and Drives Fault Diagnosis and Prognosis

Antonino-Daviu, J.; Lee, Sang Bin; Strangas, Elias (Institute of Electrical and Electronics Engineers, 2017)

[EN] With the expansion of the use of electrical drive sys- tems to more critical applications, the issue of reliability and fault mitigation and condition-based maintenance have consequently taken an increasing importance: ...
Improvement of temperature-based ANN models for solar radiation estimation through exogenous data assistance

Martí Pérez, Pau Carles; Gasque Albalate, Maria (Elsevier, 2011-02)

[EN] The development of new and more precise temperature-based models for solar radiation estimation is decisive, given the immediacy and simplicity associated to their input measurements and the ubiquitous problems derived ...
Improvements on automatic speech segmentation at the phonetic level

Gómez Adrian, Jon Ander; Calvo Lance, Marcos (Springer Verlag (Germany), 2011)

In this paper, we present some recent improvements in our automatic speech segmentation system, which only needs the speech signal and the phonetic sequence of each sentence of a corpus to be trained. It estimates a GMM ...
In-cylinder pressure based model for exhaust temperature estimation in internal combustion engines

Guardiola, Carlos; Olmeda, P.; Plá Moreno, Benjamín; Bares-Moreno, Pau (Elsevier, 2017)

[EN] Exhaust temperature is a valuable parameter for engine control. However, measurement conditions at the engine exhaust and the slow dynamic response of temperature sensors difficult the determination of the instantaneous ...