Articles, congressos, llibres: Recent submissions
Now showing items 1861-1880 of 1958
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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 ... -
A recursive approach to Multiscalar Data Interpolation of sparsely sampled sea surface measurements at different spatial resolutions
(2008)Abstract- In many oceanographic studies there is a need to reconstruct a signal from a set of sparse measurements. We propose an algorithm to iteratively approximate the intermediate values between ... -
Educar els fills és molt complicat! Els malestars actuals de la socialització familiar
(2011)En les diferents recerques sobre la socialització familiar són cada vegada més habituals les referències dels progenitors catalans de classes mitjanes i altes a la complexitat, a les dificultats i a ... -
A contour based approach for bilateral mammogram registration using discrete wavelet analysis
(2009)Registration of mammograms is an essential step to increase the effectiveness of all screening programs planned to early detect breast cancer in asymptomatic women. New techniques based on data fusion ... -
Radix-R FFT and IFFT factorizations for parallel implementation
(2009)Two radix-R regular interconnection pattern families of factorizations for both the FFT and the IFFT -also known as parallel or Pease factorizations- are reformulated and presented. Number R is any power ... -
A fast OFDM-CDMA user demultiplexing architecture
(2000)A fast algorithm based on a butterfly structure is presented that demultiplexes the symbols of a particular type of MC-MA (Multi-Carrier Multiple-Access) modulation previously proposed for indoor ... -
Creation and Validation of Chronojump-Boscosystem: A Free Tool to Measure Vertical Jumps
(2012)Measuring the height of the vertical jump is an indicator of the strength and power of the lower body. The technological tools available to measure the vertical jump are black boxes and are not open ... -
Escuelas, famílias y éxito escolar
(2012)Explorar la relación entre escuela y familia, vinculándola al éxito escolar, es el objetivo de la investigaciónacción que miembros del Grup de Recerca Educativa de la Universitat de Vic (GREC) están ... -
Marcas territoriales y desarrollo local en la Cataluña interior. Estudio de caso: Territoris serens (el Lluçanès)
(2012)La denominada «reestructuración rural» pasa ineludiblemente por la transformación de la economía de sector primario que tradicionalmente ha sustentado al campo. En los últimos tiempos, se experimenta ... -
Videojuegos como un entorno de aprendizaje: el caso de "Monturiol el joc"
(Icono 14;2011, Vol. 2, núm. 9, 2011)Video games in a learning environ-ment and their application to the educational world has become a common study between researchers because the use of videogames in the classroom is coherent with a ... -
Creation of video games as a cognitive resource in the framework of Participatory Action Research Case Study: The Videogame Miquel Crusafont
(2012)The case study described below, is an example of the application of the Participatory Action Research in the use of videogames as cognitive resource. The game Miquel Crusafont (part of the Personatges ...