Title: Reconstrucció virtual del patrimoni arqueològic industrial de Vilanova i la Geltrú: activitat pesquera de la costa marítima de Vilanova i la Geltrú a finals del segle XIX Authors: Talavera Carrasco, Isidro Abstract: Aquest projecte consisteix en la reconstrucció virtual del far antic de Vilanova i la Geltrú construït l’any 1866, el far actual, un mecanisme d’extracció de barques de bou situat en la platja de Ribes Roges i el seu entorn. L’objectiu principal d’aquest projecte final de carrera és el disseny i modelat 3D de les parts anteriorment nombrades, amb un procés anomenat enginyeria inversa. Per a poder assolir-ho, s’ha realitzat un estudi dels fars, el mecanisme anomenat “maquinilla” i el seu entorn, prenent mesures i recreant-les virtualment mitjançant 3ds Max. Posteriorment, s’ha procedit a la recerca d’informació bibliogràfica sobre el far antic, l’actual i la “maquinilla” estudiats. S’ha realitzat una entrevista amb el president del Museu del Mar de Vilanova per a poder entendre el funcionament del far i en quines condicions treballaven antigament. Per últim, s’han efectuat una sèrie de simulacions per mostrar com era el moviment de la “maquinilla” quan estava en funcionament i el moviment que feien les llums dels fars de Vilanova.

Title: Gestió i cronometratge per a competicions esportives Authors: Pujadas Morilla, Albert; Gambin Canela, Sergi Abstract: El projecte de “Gestió i cronometratge per a competicions esportives” és una iniciativa pròpia de l’Ajuntament de Canyelles. El projecte sorgeix per la necessitat d’automatitzar els sistemes de gestió d’inscripcions i els sistemes de competicions en format cursa que, a dia d’avui, es realitzen de forma manual. L’aplicació RunR desenvolupada en aquest projecte pretén automatitzar totes les tasques que es fan manualment d’una manera més dinàmica, atractiva i fàcil de realitzar, mitjançant una plataforma senzilla per a l’usuari que englobi la gestió i control de curses, així com la consulta de classificacions i la generació dels documents necessaris per a la presentació dels resultats de les competicions. Per tal de realitzar el projecte s’ha fet un estudi de tecnologies entre les quals les més importants han estat els sistemes GPS, els sistemes Bluetooth i els sistemes de Radioidentificació (RFID). S’ha escollit d’entre elles la tecnologia RFID per adaptar-se millor a les necessitats tècniques i econòmiques de les que es disposava per a desenvolupar el projecte. El sistema consta d’un sistema de lectura RFID, que captura la senyal de les etiquetes d’identificació per radiofreqüència. S’ha creat un programa escrit en C# anomenat RunR, que és capaç de comunicar-se amb aquest hardware mitjançant connexió usb. Aquest sistema consta també d’una base de dades MySQL on s’enregistren les inscripcions i altres dades de les curses, com els registres que fan els corredors en aquestes competicions. RunR no està pensat com un sistema final sinó que és la primera versió d’una aplicació en constant desenvolupament, doncs la versió obtinguda a la primera fase del projecte ja és una aplicació funcional que compleix amb els requisits indispensables i les necessitats de l’Ajuntament de Canyelles.

Title: Weak measurements with orbital-angular-momentum pointer states Authors: Puentes, G.; Hermosa, N.; Pérez Torres, Juan Abstract: Weak measurements are a unique tool for accessing information about weakly interacting quantum systems with minimal back action. Joint weak measurements of single-particle operators with pointer states characterized by a two-dimensional Gaussian distribution can provide, in turn, key information about quantum correlations that can be relevant for quantum information applications. Here we demonstrate that by employing two-dimensional pointer states endowed with orbital angular momentum (OAM), it is possible to extract weak values of the higher order moments of single-particle operators, an inaccessible quantity with Gaussian pointer states only. We provide a specific example that illustrates the advantages of our method both in terms of signal enhancement and information retrieval.

Title: PARIS interferometric technique proof of concept: sea surface altimetry measurements Authors: Rius, A.; Fabra Cervellera, Fran; Ribó, S.; Arco Fernandez, Juan Carlos; Oliveras, S.; Cardellach, Estel; Camps Carmona, Adriano José; Nogués Correig, O.; Kainulainen, J.; Rohue, E.; Martín Neira, Manuel Abstract: We report preliminary results of an aircraft experiment aimed to proof the PARIS Interferometric Technique. The experiment was performed in the Gulf of Finland during a two hours flight.We installed a PARIS Interferometric Receiver together with a GOLD-RTR instrument to collect reflected C/A, P(Y) and M-code GPS signals. The collected data has been analyzed to produce altimetric observables with both techniques.

Title: Impact of the observation geometry on the GNSS-R direct descriptors used for sea state monitoring Authors: Valencia Domenech, Enric; Camps Carmona, Adriano José; Hyuk, Park; Rodriguez Alvarez, N.; Ramos Pérez, Isaac Abstract: In recent years GNSS-R has been proposed for ocean remote sensing, both for altimetry and scatterometry. For the later, two main approaches are available: fitting the measurements with a model, or using some observable from the measurements (either the waveform or the delay-Doppler Map) to be directly linked to ocean surface’s roughness. For groundbased and airborne experiments, several direct observables have been proposed to describe ocean surface’s roughness, and they have been used assuming that the observation geometry had little impact on them. However, it may not be true for a spaceborne scenario, since the dynamics are higher. In this work an extensive simulation study is performed, and the first results on how the observation geometry does impact different GNSS-R direct observables is presented.

Title: Slew-rate and efficiency trade-off in slow envelope tracking power amplifiers Authors: Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Vizarreta Paz, Pedro Pablo Abstract: This paper presents a study on the trade-off between the envelope's slew-rate and the drain efficiency when slower envelopes are considered to dynamically supply the power amplifier (PA). This paper discusses a method to limit the slew-rate (and consequently the bandwidth) of the signal's envelope. Moreover, since the envelope tracking (ET) technique using a slower version of the original envelope introduces nonlinear distortion, slow envelope dependent predistortion has to be also incorporated in the design of ET PAs. Experimental results showed that it is possible to find a compromise between the bandwidth and slew-rate reduction (necessary to cope with the specific envelope amplifier requirements) and the amount of drain efficiency degradation suffered due to the use of a slower version of the original envelope.

Title: Towards a statistical mechanics of cell fate decisions Authors: García Ojalvo, Jordi; Martinez Arias, Alfonso

Title: An integrated fuzzy-based trustworthiness system for P2P communications in JXTA-overlay Authors: Umezaki, K.; Spaho, Evjola; Barolli, Leonard; Xhafa Xhafa, Fatos; Younas, Muhammad; Iwashige, J.

Title: Effects of the addition of simple and double decoys on the purchasing process of airline tickets Authors: González Prieto, David; Sallán Leyes, José María; Simó Guzmán, Pep; Carrion, Raimon Abstract: Air ticket purchases can be considered to be based on sequential decision-making processes with a limited number of alternatives with clearly identified product attributes. With this scenario, decoy contextual effects could potentially be useful in increasing the profitability of each choice set through driving the attention of the users to a particular alternative by changing their perceptions, such as the perceived attractiveness of particular options, to benefit one specific alternative. This study validates the efficiency of the addition of decoy options in increasing the proportion of users who select the target option in a choice set and introduces, theoretically and empirically, the use of double decoys. Three distinct hypothetical choice sets are configured using two different types of decoy.

Title: EMI performance comparison of two-level and three-level inverters in small dc-link capacitors based motor drives Authors: Maheshwari, RamKrishan; Munk-Nielsen, Stig; Busquets Monge, Sergio Abstract: The size of passive components in an adjustable speed drive can be reduced by using small dc-link capacitors. The EMI filter in the drive also consists of passive components. The size of the filter can be reduced by using a three-level inverter, which can have low output voltage distortion. However, the three-level inverter based on small dc-link capacitors requires a PWM strategy to maintain neutral-point voltage balance. In this paper, the common mode voltage, which is the determining factor for the EMI filter size, is analyzed for a virtual-vector-based PWM strategy. The common mode voltage, the shaft voltage, and the conducted emission for the small dc-link capacitor based three-level inverter are compared with that of the two-level inverter operated with space vector PWM strategy. Experimental results for the common mode voltage, the shaft voltage, and the conducted emission are presented. Results show that the conducted emission from the three-level inverter is lower than that of the two-level inverter. Thus, a three-level inverter requires a smaller EMI filter in motor drives with small dc-link capacitors.

Title: La construccio del territori Authors: Pié Ninot, Ricard

Title: El detall estratègic Authors: Tudó Galí, Roger; Ricart Ulldemolins, Josep; Aguiló Aran, Claudi; Claret Martí, Jordi

Title: Notas sobre la marginalidad urbanística Authors: Solà-Morales Rubió, Manuel de; Busquets Grau, Juan; Font Arellano, Antonio; Domingo Clota, Miguel

Title: Curs d'introducció a l'Arquitectura Authors: Salvadó, Ton; Usandizaga Calparsoro, Miguel M.

Title: Non-functional requirements in architectural decision-making Authors: Ameller, David; Ayala Martínez, Claudia Patricia; Cabot, Jordi; Franch Gutiérrez, Javier Abstract: A survey of software architects addressed how they face non-functional requirements from an engineering perspective and how these requirements influence decision making.

Title: The three-layer architectural pattern applied to plug-in-based architectures : the Eclipse case Authors: Ameller, David; Collell, Oriol; Franch Gutiérrez, Javier Abstract: The process of designing a software architecture using different kinds of components is often challenging. Different designs support some quality attributes while damaging others; therefore, trade-off analysis is needed to make informed decisions. Moreover, analysis made in theory needs to be complemented with observations in practice, especially when using a particular set of technologies to implement the system. In this paper, we present a particular instance of this problem. We study how the Three-Layer architectural pattern may be developed using plug-ins. We compare two extreme alternatives according to several representative scenarios and their impact in some quality attributes. Then, we apply this theoretical knowledge to a case study, the implementation of a plug-in-based tool for managing architectural knowledge using Eclipse. We report some unexpected difficulties found that forced us to adapt the theoretical solution into an operative architecture.

Title: Sostenibilitat: experiències del projecte Moràvia Authors: Morató Farreras, Jordi Description: El Projecte Moravia va ser plantejat per donar solució al problema ambiental causat pels efluents contaminats (lixiviats) emesos per les deixalles sòlids urbans que es trobaven en un antic abocador de Medellín, Colòmbia mitjançant la implementació i ús de tecnologies sostenibles per a la gestió de l'aigua: buffer Strips i Aiguamolls Construïts. En aquest projecte es va aconseguir involucrar la població en el procés de transformació, permetent sensibilitzar la població sobre l'estreta relació entre la protecció del medi ambient i el desenvolupament dels pobles. El projecte de restauració socioambiental del Morro de Moràvia ha rebut diferents premis internacionals, i és un exemple sense dubte pel procés de transformació participatiu. El projecte va ser documentat en vídeo, mateix que es va dur a terme entre els mesos d'abril i maig de 2012 (fase final del projecte), realitzant entrevistes a representants de la comunitat del barri de Moravia, d'entitats socioculturals, universitats, organitzacions de cooperació internacional i administracions públiques.

Title: 4a Jornada 25è aniversari d'Enginyeria Tècnica Topogràfica Authors: Jordana Riba, Francisco de Paula; Femenía Ribera, Carmen; Escudero Agustí, Antoni Lluís Abstract: Tot continuant amb la celebració del 25è aniversari de la titulació d'Enginyeria Tècnica Topogràfica a l'EPSEB, et convidem a una nova jornada, en aquest cas a càrrec de Carmen Femenía, Doctor Ingeniero en Geodesia y Cartografía per la UPV, es profesora Titular de la Escuela Técnica Superior de Ingeniería Geodésica, Cartográfica y Topográfica en la Universidad Politécnica de Valencia, especialitat en Cadastre, i de Toni Escudero Ingeniero Técnico en Topografía per la UPM, actualment és el reponsable de la vocalia de Territori i Propietat del COETT a Catalunya.

Title: Analisys and energy saving measures of kastvallen ice hockey rink arena Authors: Igual Bueno, Mario; Bielsa Azcona, José Enrique Abstract: Nowadays efficiency measures are more and more important because the price of the energy is increasing every year. Moreover, saving energy it is also important for decrease the environmental impact. Kastvallen is a hockey arena built in 1997 that cools the hockey rink with electric compressors. The changing rooms are heating by using district heating. Actually the total invoice of electricity is above the 800000 SEK. Meanwhile the district heating invoice reaches the 60000SEK. The aim of this project is reducing the amount of the electricity and heat invoice promoting smart energy improvements. The improvements proposals can be divided in three sections; energy savings of the changing rooms, efficiency increase of the compressors and dehumidifier energy savings. For heat the tap water and the changing room’s ventilation it is suggested to take profit from the heat released at the condenser and so reduce its heat load requirements. For this proposal two different configurations are studied. In order to increase the efficiency of the compressors the possibility of reducing the condenser temperature will be studied. Three proposals will be studied to carry out this commitment; Installing a condensing temperature control, installing a evaporate cooler and having a snow storage. Finally, one of the largest consumers of electricity in Kastvallen ice hockey rink is the dehumidifier. The current dehumidifier works with a desiccant wheel. The desiccant material extract the moisture from the processed air flow, after that the desiccant has to be reactivated with ‘fresh air’. This reactivation air needs to be heated 95ºC, so the waste air released after the reactivation of the desiccant is air at high temperature. The first proposal is preheat the reactivation air with the hot waste air in order to reduce the heating requirements. The second step is studied the possibility of heating the air with district heating, taking into account that district heating is three times cheaper than electricity. The last proposal is to combine preheating and heating with district heating. All the previous energy improvements proposals are studied with empirical and analytical methods and using the knowledge gained during the previous years of studies. The study concludes that the best proposal for the dehumidifier is combine the preheating and heating with district heating. For the refrigeration cycle, the study concludes that installing a controlled temperature control is the best option if the price of that is lower than 334726 SEK. If not the best option is heating the rooms and the ventilation with the condenser of the refrigeration cycle. These measures could reduce between 8% and 20% of the total energy invoice. Evaporative cooling and snow storage would be studying after with the data of the first year of the condensing temperature control; if it is installed.

Title: A suitable criterion for tube sizing in reverse cycle machines Authors: del Rivero Vilà, Oriol Abstract: To find the optimal diameters for the connecting tubes in reverse cycle machines we use in this paper a new criterion that we have recently developed, the Ecological Cost, “EC" (Kheiri et al. 2011) EC includes the environmental cost, in CO2 equivalent, of the exergy destroyed by head losses in the tubes and the refrigerant mass GWP (Global Warming Potential) in the same tubes, which is also provided by CO2 equivalent. Leakage effect can also be included in EC. We develop an expression for the optimal tube diameter on this basis. We consider simple cases with no heat exchange and single-phase fluid flows.