Search results for "alma"
showing 10 items of 265 documents
El Yacimiento de Colata (Valencia, España) y los ‘poblados de silos’ en la fachada mediterránea de la Península Ibérica
2004
Recientemente se han abierto nuevas líneas de investigación revisando algunas categorías empleadas en la interpretación funcional de las estructuras, modificando aspectos metodológicos en el análisis de los rellenos y matizando algunas afirmaciones de índole socioeconómico fundamentadas en los cálculos de producción- En este contexto se presentan los resultados del yacimiento de Colata (Valencia, España), con la intención de contribuir a ese panorama de renovación en la interpretación de los yacimientos neolíticos con silos. Recently, new lines of research have been opened by reviewing some categories used in the functional interpretation of structures, modifying methodological aspects in t…
Los orígenes del Museo Provincial de Bellas Artes de Palma (Mallorca) y sus inventarios iniciales: 1820-1850
2012
Una de las consecuencias de la desamortización de Mendizabal fue la creación de la red estatal de Museos Provinciales. Aquí se considera el origen del Museo de Bellas Artes de Palma en sus dos etapas iniciales: la primera es la que se vincula con la Sociedad Económica de Amigos del País, la cual realizó la primera recopilación de los fondos; la segunda, entre 1844 y 1850, discurre bajo el signo de la Comisión provincial de monumentos. Estos períodos llevan a cabo la selección de las obras, la instalación provisional del Museo y elaboraron una serie de inventarios de los bienes museísticos, de los cuales presentamos los realizados durante los años cuarenta. One of the consequences of the Spa…
La escalera de caracol "de Mallorca" y la torre del homenaje del castillo de Almansa: ¿una obra desconocida de Pere Compte?
2014
Why Do French Universities Perform so Poorly in International League Tables ?
2004
International audience
Restorānu nozares tirgus analīze Almati pilsētā
2020
Gaukhar Zakirova. Bakalaura darbs “Tirgus analīze par restorānu nozari Almati pilsētā”. Šajā darbā tika veikta Almati restorānu nozares analīze. Mērķis ir noteikt galvenās stratēģijas, kas uzlabo sniegumu restorānu nozarē Almati tirgū. Galvenais uzdevums ir, sasaistot teoriju un praktiskos tirgus analīzes piemērus dažādu valstu restorānu nozarē, sasniegt šī darba mērķi. Rezultāti parāda restorānu nozares mūsdienu situāciju Almati tirgū, tā stiprās un vājās puses. Bakalaura darbā ir 16 attēli, 35 tabulas, 4 pielikumi un 121 lappuses. Pētniecības periods aptver 2019 – 2020.
A Kalman filter single point positioning for maritime applications using a smartphone
2020
Different positioning techniques have been largely adopted for maritime applications that require high accuracy kinematic positioning. The main objective of the paper is the performance assessment of a Single Point Positioning algorithm (SPP), with a Kalman filter (KF) estimator, adapted for maritime applications. The KF has been chosen as estimation technique due to the ability to consider both the state vector dynamic and the measurements. Particularly, in order to compute an accurate vertical component of the position, suitable for maritime applications, the KF settings have been modified by tuning the covariance matrix of the process noise. The algorithm is developed in Matlab environme…
Mundus et: Idea. Homo. Communitas. Sciens : zinātnisko rakstu krājums
2021
LU Studentu zinātnisko rakstu krājums “Mundus et” ir Latvijas Universitātes Studentu padomes organizētās LU Studentu zinātniskās konferences “Mundus et” jauno pētnieku darbu apkopojums.
La placa grabada de Balma Guilanyà (Prepirineo de Lleida) y las manifestaciones artísticas del Mesolítico de la Península Ibérica
2011
A carved rock with geometric and/or abstract signs discovered at the Balma Guilanyà site has made possible the analysis of the artistic patterns developed after the end of the Upper Palaeolithic in the Iberian Mediterranean region. Archaeo-stratigraphic, chronometric and chrono-cultural attributes link this finding to the Mesolithic, probably during the tenth millennium cal BP. Graphic analysis and the comparison with different kinds of representations from this same area allows the evaluation of the problematic that surrounds the characterization of West Mediterranean Mesolithic art.
Diagnostics of stator winding failures in wind turbine pitch motors using Vold-Kalman filter
2019
Pitch systems are among the most failure-prone components in wind turbines. Winding failures in pitch motors are common due to high start-up loads and poor ventilation. This article presents a diagnostics scheme that can detect the stator winding failures in the pitch motors under time-varying speed and load conditions. The proposed approach based on three-phase motor currents can be directly integrated into the motor drive and can be used for induction as well as permanent magnet synchronous machines. The extended Park's vector calculated on the motor currents is order tracked based on the supply frequency from the drive using Vold-Kalman filter. The approach is shown to be robust under ar…
Wind Shear On-Line Identification for Unmanned Aerial Systems
2014
An algorithm to perform the on line identification of the wind shear components suitable for the UAS characteristics has been implemented. The mathematical model of aircraft and wind shear in the augmented state space has been built without any restrictive assumption on the dynamic of wind shear. Due to the severe accelerations on the aircraft induced by the strong velocity variation typical of wind shear, the wind shear effects have been modeled as external forces and moments applied on the aircraft. The identification problem addressed in this work has been solved by using the Filter error method approach. An Extended Kalman Filter has been developed to propagate state. It has been tuned …