Acción interpretativa para la finca pública de son real Mallorca

Cualquier acción dinamizadora que tenga como objetivo la desestacionalización turística basada en la explotación del patrimonio de la finca pública de Son Real, debe sustentarse necesariamente en una política gestora explícita, dotada de contenidos e integral.Pero ante todo debe tener una base de conocimiento, de contextualización del territorio y debe recoger todas las incidencias que afectan al bien para desarrollar estrategias consecuentes destinadas al conocimiento, conservación y difusión de este patrimonio, ligándolo a las demandas y necesidades de la sociedad actual y futura.

Comparação de metodologias para a determinação de umidade em geléia real

The aim of this paper was to compare methods of moisture determination to choose the best one for the determination of this parameter in royal jelly samples. Royal jelly is sensitive to high temperatures becoming dark and loosing volatiles in high temperatures. The methods were: vacuum oven at 60 ºC, 70 ºC, conventional oven at 105 ºC, Karl Fisher, dissecator with sulfuric acid and dryness with infrared light at 105 ºC. Based on the results, the best method was the dissecator with sulfuric acid for moisture determination in royal jelly.

Aplicação da CLAE para determinação do ácido 10-Hidróxi-2-decenóico (10-HDA) em geléia real pura e adicionada a mel brasileiro

The aim of this paper was to determine the 10-HDA in pure royal jelly and products containing royal jelly, using HPLC methodology. 10-HDA is the natural indicator of the presence of royal jelly in products and also gives the authenticity of pure royal jelly. The chromatographic conditions used were: isocratic system, C18-H column, auto sampler, diode array UV-VIS detector (225 nm), mobile phase with methanol/water (45:55), pH= 2.5 and a-naphtol as internal standard. The results obtained using laboratory samples for pure royal jelly were 2.37%, varying from 0.15% for honey with 10% of royal jelly to 2.10% for honey with 90% of royal jelly respectivelly. For commercial products, the 10-HDA content varied from no detectable to 0.026%. The recovery test presented a minumum of 100.44% The detection limit was 45.92 ng/mL and the quantification limit was 76.53 ng/mL.

Another Look at the Null of Stationary Real Exchange Rates: Panel Data with Structural Breaks and Cross-section Dependence

This paper re-examines the null of stationary of real exchange rate for a panel of seventeen OECD developed countries during the post-Bretton Woods era. Our analysis simultaneously considers both the presence of cross-section dependence and multiple structural breaks that have not received much attention in previous panel methods of long-run PPP. Empirical results indicate that there is little evidence in favor of PPP hypothesis when the analysis does not account for structural breaks. This conclusion is reversed when structural breaks are considered in computation of the panel statistics. We also compute point estimates of half-life separately for idiosyncratic and common factor components and find that it is always below one year.

El software libre al servicio de la economía productiva : Caso real de implantación de un ERP en una micro PYME

Este trabajo de fin de grado intenta, mediante el caso real de la implantación de un ERP en una micro PYME, ajustar a la realidad socioeconómica de la gran mayoría de empresas españolas las técnicas de implantación de software y de gestión de proyectos, usando como elemento conductor un ERP de software libre, para conseguir el triple objetivo de mantener los ratios de calidad deseados en cualquier proyecto de ingeniería de software, con unos costes asumibles por una micro PYME y satisfaciendo las necesidades de negocio.

Criterios de selección de proveedores de tecnologías de la información y comunicaciones en el sector financiero : Consecuencias de su aplicación y estudio de un caso real

Peer-reviewed

Estudi d'implantació d'un sistema de videoconferència a la Universitat de Lleida

L'auge vertiginós de les tecnologies de la informació i la comunicació (TIC) durant els darrers anys ha creat empremta en la vida quotidiana de la societat mundial, i cada dia hi han més eines al nostre abast que ens faciliten la vida si en sabem treure profit. En l'àmbit universitari, la docència i la recerca universitàries per la seva naturalesa són sectors on ja fa temps que aprofiten les TIC per millorar-ne l'excel·lència. Per exemple, l'e-learning és un tipus d'ensenyament a través d'Internet on professor i alumne poden estar distants geogràficament. La majoria d'universitats ja implementen aquest tipus d'ensenyament comptant amb algun servei de campus virtual com a eina d'ús àmpliament coneguda i gaudeixen de nombrosos avantatges que beneficien tant a l'estudiantat com al professorat i al personal d'administració i serveis. Els sistemes de videoconferència, juntament amb la millora de les connexions a Internet a les llars, conjuminen un altra vessant de les TIC que tenen un gran impacte potencial per a la societat, i així, el fet de poder comunicar-se a distància amb veu i imatge en temps real comporta un estalvi de temps i diners força considerable. L'aprofitament d'aquestes oportunitats que ofereixen les TIC provocarà una reinvenció dels centres educatius i potenciarà un aprenentatge cada cop més pràctic i agradable. L'objectiu del present projecte es estudiar sistemes de videoconferència que puguin ser utilitzats per ells mateixos o de forma integrada al campus virtual de la Universitat de Lleida. A més, també seran objecte d'avaluació els mecanismes i metodologies estàndards per ajudar a la selecció del producte que més s'escaigui a les necessitats de la UdL. Així doncs, forma part de l’abast d’aquest projecte la definició de les necessitats que pot cobrir una eina de videoconferència integrada al campus virtual i l'estudi de les possibles aplicacions futures que se li pot donar per part de la comunitat universitària. I en funció d’aquesta definició, i dels sistemes TIC actuals amb els quals hi pot haver dependència, es definiran els requeriments que posteriorment caldrà valorar per totes les solucions de sistemes de videoconferència destacables per tal de poder seleccionar la més indicada. Durant la seva durada s’abordaran tot un seguit d'etapes per tal de triar un producte final, iniciant en primer lloc l'anàlisi prèvia de l'escenari plantejat, l'anàlisi de requeriments de la universitat, l'estudi de metodologies de valoració de projectes o eines informàtiques, la recerca de productes de videoconferència destacables i la posterior valoració, l'estudi de costs i retorn de la inversió del projecte, i finalment, la definició d'un escenari de pla pilot dins la pròpia universitat

The effects of real time control of welding parameters on weld quality in plasma arc keyhole welding

Joints intended for welding frequently show variations in geometry and position, for which it is unfortunately not possible to apply a single set of operating parameters to ensure constant quality. The cause of this difficulty lies in a number of factors, including inaccurate joint preparation and joint fit up, tack welds, as well as thermal distortion of the workpiece. In plasma arc keyhole welding of butt joints, deviations in the gap width may cause weld defects such as an incomplete weld bead, excessive penetration and burn through. Manual adjustment of welding parameters to compensate for variations in the gap width is very difficult, and unsatisfactory weld quality is often obtained. In this study a control system for plasma arc keyhole welding has been developed and used to study the effects of the real time control of welding parameters on gap tolerance during welding of austenitic stainless steel AISI 304L. The welding tests demonstrated the beneficial effect of real time control on weld quality. Compared with welding using constant parameters, the maximum tolerable gap width with an acceptable weld quality was 47% higher when using the real time controlled parameters for a plate thickness of 5 mm. In addition, burn through occurred with significantly larger gap widths when parameters were controlled in real time. Increased gap tolerance enables joints to be prepared and fit up less accurately, saving time and preparation costs for welding. In addition to the control system, a novel technique for back face monitoring is described in this study. The test results showed that the technique could be successfully applied for penetration monitoring when welding non magnetic materials. The results also imply that it is possible to measure the dimensions of the plasma efflux or weld root, and use this information in a feedback control system and, thus, maintain the required weld quality.

RTOS Framework for Real-Time Control System

This thesis is done as a complementary part for the active magnet bearing (AMB) control software development project in Lappeenranta University of Technology. The main focus of the thesis is to examine an idea of a real-time operating system (RTOS) framework that operates in a dedicated digital signal processor (DSP) environment. General use real-time operating systems do not necessarily provide sufficient platform for periodic control algorithm utilisation. In addition, application program interfaces found in real-time operating systems are commonly non-existent or provided as chip-support libraries, thus hindering platform independent software development. Hence, two divergent real-time operating systems and additional periodic extension software with the framework design are examined to find solutions for the research problems. The research is discharged by; tracing the selected real-time operating system, formulating requirements for the system, and designing the real-time operating system framework (OSFW). The OSFW is formed by programming the framework and conjoining the outcome with the RTOS and the periodic extension. The system is tested and functionality of the software is evaluated in theoretical context of the Rate Monotonic Scheduling (RMS) theory. The performance of the OSFW and substance of the approach are discussed in contrast to the research theme. The findings of the thesis demonstrates that the forged real-time operating system framework is a viable groundwork solution for periodic control applications.

On the interplay between Q^2 and t dependence in exclusive diffractive production of real photons and vector mesons in ep collisions

We show how the familiar phenomenological way of combining the Q2 (photon virtuality) and t (squared momentum transfer) dependences of the scattering amplitude in Deeply Virtual Compton Scattering (DVCS) [1, 2] and Vector Meson Production (VMP) [2] processes can be understood in an off-mass-shell generalization of dual amplitudes with Mandelstam analyticity [3]. By comparing different approaches, we managed also to constrain the numerical values of the free parameters.

Integration of Real-Time Simulator, Motion Platform and Haptics

This thesis describes the process of the integration of a real-time simulator environment with a motion platform and a haptic device as a part of the Kvalive project. Several programs running on two computers were made to control the different devices of the environment. User tests were made to obtain information of needed improvements to make the simulator more realistic. Also new ideas for improving the simulator and directions of further research were obtained with the help of this research.

Real-Time Simulation of Mobile and Industrial Machines Using the Multibody Simulation Approach

This thesis introduces a real-time simulation environment based on the multibody simulation approach. The environment consists of components that are used in conventional product development, including computer aided drawing, visualization, dynamic simulation and finite element software architecture, data transfer and haptics. These components are combined to perform as a coupled system on one platform. The environment is used to simulate mobile and industrial machines at different stages of a product life time. Consequently, the demands of the simulated scenarios vary. In this thesis, a real-time simulation environment based on the multibody approach is used to study a reel mechanism of a paper machine and a gantry crane. These case systems are used to demonstrate the usability of the real-time simulation environment for fault detection purposes and in the context of a training simulator. In order to describe the dynamical performance of a mobile or industrial machine, the nonlinear equations of motion must be defined. In this thesis, the dynamical behaviour of machines is modelled using the multibody simulation approach. A multibody system may consist of rigid and flexible bodies which are joined using kinematic joint constraints while force components are used to describe the actuators. The strength of multibody dynamics relies upon its ability to describe nonlinearities arising from wearing of the components, friction, large rotations or contact forces in a systematic manner. For this reason, the interfaces between subsystems such as mechanics, hydraulics and control systems of the mechatronic machine can be defined and analyzed in a straightforward manner.

Finite-temperature T matrix in a real-time formalism

A generalized off-shell unitarity relation for the two-body scattering T matrix in a many-body medium at finite temperature is derived, through a consistent real-time perturbation expansion by means of Feynman diagrams. We comment on perturbation schemes at finite temperature in connection with an erroneous formulation of the Dyson equation in a paper recently published.

Geómetras en el paraíso: el levantamiento topográfico del Real Sitio de Riofrío (1868-69)

En agosto de 1868 un equipo de geómetras de la Junta General de Estadística, dirigido por José Giralt Torner, inició los trabajos de campo necesarios para proceder a una representación cartográfica fiable del Real Sitio de Riofrío (Segovia). El levantamiento formaba parte de un proyecto más ambicioso, que tenía por objeto el inventario y deslinde del patrimonio territorial de la Corona. Los planos formados por los geómetras de la Junta de Estadística, que se conservan inéditos en el archivo del Instituto Geográfico Nacional, constituyen un conjunto documental de notable valor geohistório, sin posible parangón entre las fuentes iconográficas del siglo XIX. Este artículo, que se apoya esencialmente en fuentes primarias, da cuenta de la cartografía conservada, describe la técnica de levantamiento, e identifica a los protagonistas de tales trabajos.

Real unit labour costs in Eurozone countries: drivers and clusters

We examine the trajectories of the real unit labour costs (RULCs) in a selection of Eurozone economies. Strong asymmetries in the convergence process of the RULCs and its components —real wages, capital intensity, and technology— are uncovered through decomposition and cluster analyses. In the last three decades, the PIIGS (Portugal, Ireland, Italy, Greece, and Spain) succeeded in reducing their RULCs by more than their northern partners. With the exception of Ireland, however, technological progress was weak; it was through capital intensification that periphery economies gained efficiency and competitiveness. Cluster heterogeneity, and lack of robustness in cluster composition, is a reflection of the difficulties in achieving real convergence and, by extension, nominal convergence. We conclude by outlining technology as the key convergence factor, and call for a renewed attention to real convergence indicators to strengthen the process of European integration.