Articles, congressos, llibres: Recent submissions
Now showing items 1801-1820 of 1908
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Coding of Biosignals Using the Discrete Wavelet Decomposition
(2010)Abstract. Wavelet derived codification techniques are widespread used in image codifiers. The wavelet based compression methods are adequate for representing transients. In this paper we explore the ... -
Mathematical Morphology Preprocessing to Mitigate AWGN Effects: Improving Pitch Tracking Performance in Hard Noise Conditions
(2010)Abstract. In this paper we show how a nonlinear preprocessing of speech signal -with high noise- based on morphological filters improves the performance of robust algorithms for pitch tracking (RAPT). ... -
Bump time-frequency toolbox: a toolbox for time-frequency oscillatory bursts extraction in electrophysiological signals
(2009)Background: oscillatory activity, which can be separated in background and oscillatory burst pattern activities, is supposed to be representative of local synchronies of neural assemblies. Oscillatory ... -
Reciprocal Translocations in Cattle: frequency estimation
(2010)Chromosomal anomalies, like Robertsonian and reciprocal translocations represent a big problem in cattle breeding as their presence induces, in the carrier subjects, a well documented fertility ... -
Un programa para cooperar y aprender
(2012)Más de 300 centros de Educación Infantil, Primaria y ESO aplican el Programa Cooperar para Aprender/Aprender a Cooperar (CA/AC), que forma y asesora al profesorado para enseñar al alumnado a ... -
El treball assalariat en els masos de la Catalunya interior al segle XIX. L'exemple del mas Santmartí
(1994)Malgrat que el mas es considera una unitat d'explotació de caracter familiar, les múltiples tasques que s'hi havien de fer obligaven sovint els amos a cercar mà d'obra fora de la familia. Aquesta ... -
Dots i llegats dels Baldrich de Valls (1768-1863)
(Reproducció digital del document publicat a: http://www.raco.cat/index.php/ButlletiSCEH/article/view/148920, 2005)Aquest article presenta les dificultats que van haver d’afrontar entre 1768 i 1863 els hereus de la casa Baldrich de Valls per liquidar els dots i les deixes testamentàries. Anton Baldrich Janer va ... -
La Comunitat de Preveres de Sallent durant la segona meitat del segle XVIII
(2002)L’objectiu d’aquest article és presentar dues situacions diferents que es van produir a la Comunitat de Preveres de Sallent durant la segona meitat del segle XVIII i que permeten analitzar alguns ... -
El Sufragi femení a la premsa d' Osona (1931-1936)
(2006)La proclamació de la Segona República va obrir un ampli ventall de possibilitats a les dones catalanes i els va crear noves expectatives. D’entrada, la Constitució de 1931 els va atorgar el dret al ... -
Retos de futuro
(2012)Distintos centros que aplican el Programa CA/AC plantean, en cinco talleres, cuestiones como la implicación de las familias o la participación del alumnado con barreras de aprendizaje. Reflexionan ... -
Evolució dels nitrats analitzats a l'aigua de 87 fonts situades en 28 municipis de la comarca d'Osona
(2011)La comarca d’Osona ha disposat sempre d’aigua abundant i de bona qualitat, però en els darrers anys s’ha observat un increment del contingut de nitrats a les aigües subterrànies. Des de 1988 i fins ... -
Gene Promoter Evolution Targets the Center of the Human Protein Interaction Network
(2010)Assessing the contribution of promoters and coding sequences to gene evolution is an important step toward discovering the major genetic determinants of human evolution. Many specific examples have ... -
A new otolith image contour descriptor based on partial reflection
(2010)In this paper we propose a new contour descriptor for reconstructing fish otolith contours that uses half the number of coefficients needed by the classical elliptical Fourier descriptors (EFDs) for the ... -
Potters and pigments: preliminary technological assessment of pigment recipes of American majolica by synchrotron radiation micro-X-ray diffraction (Sr-mXRD)
(2012)This paper assesses the impact of European ceramics on preexisting American potting technologies. Specifically we investigate the technological features of pigments used for production of colonial American ... -
Otoliths identifiers using image contours EFD
(2010)Abstract. In this paper we analyze the characteristics of an experimental otolith identification system based on image contours described with Elliptical Fourier Descriptors (EFD). Otoliths are found ... -
Composition, nanostructure, and optical properties of silver and silver-copper lusters
(2012)Lusters are composite thin layers of coinage metal nanoparticles in glass displaying peculiar optical properties and obtained by a process involving ionic exchange, diffusion, and crystallization. ... -
Implementation of a Channel Equalizer for OFDM Wireless LANs
(2004)This paper presents an implementation of a channel equalizer for a wireless OFDM according to the IEEE 802.11a and Hiperlan/2 standard. In order to implement the equalizer, algorithms of low computational ... -
IFFTIFFT core architecture with an identical stage structure for wireless LAN communications
(2004)Abstrac(- This paper shows the design of the IFFT module corresponding to the baseband processing of an OFDM transmitter according to the IEEE802.11a-g and Hiperlan/2 standard. This module will be ... -
Image Processing to Detect and Classify Situations and States of Elderly People
(2011)Abstract. Monitoring and tracking of elderly people using vision algorithms is an strategy gaining relevance to detect anomalous and potentially dangerous situations and react immediately. In general ...