1,177 research outputs found

    Analysis and design of multiagent systems using MAS-CommonKADS

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    This article proposes an agent-oriented methodology called MAS-CommonKADS and develops a case study. This methodology extends the knowledge engineering methodology CommonKADSwith techniquesfrom objectoriented and protocol engineering methodologies. The methodology consists of the development of seven models: Agent Model, that describes the characteristics of each agent; Task Model, that describes the tasks that the agents carry out; Expertise Model, that describes the knowledge needed by the agents to achieve their goals; Organisation Model, that describes the structural relationships between agents (software agents and/or human agents); Coordination Model, that describes the dynamic relationships between software agents; Communication Model, that describes the dynamic relationships between human agents and their respective personal assistant software agents; and Design Model, that refines the previous models and determines the most suitable agent architecture for each agent, and the requirements of the agent network

    Entrevista a Emilio Tuñón. La anatomía de las cuestiones primitivas

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    Medir el lugar Acercarse a tus proyectos sabe a saber del lugar, de su identidad, de su pasado, de su origen más primitivo. Parece que tus proyectos se inician en una negociación que media y que mide las distancias con aquel lugar para establecer lo que llamáis acuerdos... Measuring spaces Looking at your projects tastes of the knowledge of the place, its identity, its past and its most primitive origin. Your projects seem to begin with a negotiation that mediates and measures distances with that place to establish what you call agreements..

    Against the time. Pereda Pérez Arquitectos

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    [ES] Se presentan 5 proyectos, cronológicamente alternados, tanto de carácter dotacional como de vivienda vinculados a diferentes contextos, y cómo los hemos ido conformando materialmente en torno al hormigón.Pereda Iglesias, C.; Pérez Silanes, Ó. (2017). Frente al tiempo. EN BLANCO. Revista de Arquitectura. 10(23):7-9. doi:10.4995/eb.2017.8653SWORD79102

    Modeling of the Production of Lipid Microparticles Using PGSS® Technique

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    Solid lipid microparticles (SLMPs) are attractive carriers as delivery systems as they are stable, easy to manufacture and can provide controlled release of bioactive agents and increase their efficacy and/or safety. Particles from Gas-Saturated Solutions (PGSS®) technique is a solvent-free technology to produce SLMPs, which involves the use of supercritical CO2 (scCO2) at mild pressures and temperatures for the melting of lipids and atomization into particles. The determination of the key processing variables is crucial in PGSS® technique to obtain reliable and reproducible microparticles, therefore the modelling of SLMPs production process and variables control are of great interest to obtain quality therapeutic systems. In this work, the melting point depression of a commercial lipid (glyceryl monostearate, GMS) under compressed CO2 was studied using view cell experiments. Based on an unconstrained D-optimal design for three variables (nozzle diameter, temperature and pressure), SLMPs were produced using the PGSS® technique. The yield of production was registered and the particles characterized in terms of particle size distribution. Variable modeling was carried out using artificial neural networks and fuzzy logic integrated into neurofuzzy software. Modeling results highlight the main effect of temperature to tune the mean diameter SLMPs, whereas the pressure-nozzle diameter interaction is the main responsible in the SLMPs size distribution and in the PGSS® production yieldThis work was supported by Xunta de Galicia [ED431F 2016/010, ED431C 2020/17 & GRC ED431C 2020/10], MCIUN [RTI2018-094131-A-I00], Agrupación Estratégica de Materiales [AeMAT- BIOMEDCO2, ED431E 2018/08], Agencia Estatal de Investigación [AEI] and FEDER funds. C.A.G.-G. acknowledges to MINECO for a Ramón y Cajal Fellowship [RYC2014-15239]. Work carried out in the frame of the COST Action CA18224 (GREENERING) and funded by the European CommissionS

    Espacio para una sociedad gastronómica. Cuestión de detalle

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    Skeletal Class III Malocclusion in an Adult Patient – Orthodontics versus Orthognathic Surgery: Is there Another Alternative?

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    Class III malocclusions are considered to be one of the most difficult problems to treat. Due to the significant number of patients with Class III malocclusion who cannot undergo orthognathic surgery for different reasons, we have proposed an alternative treatment that we have called surgically assisted rapid palatal expansion (SARPE) + temporary anchorage devices (TADs) which allows solving mild and moderate Class III malocclusion combined with maxillary compression, obtaining acceptable esthetic and functional results. We present a case report of an adult female with skeletal Class III malocclusion with compression in the maxillary and mandibular asymmetry, who was treated with SARPE + TADs. The result is acceptable in terms of occlusion function, esthetic of the smile, and facial estheticsS

    Experiencia de usuario y medios de comunicación. La regla de los tres clics en las webs de periódicos para smartphones

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    El acceso a las noticias se produce cada vez más a través de smartphones, por lo que es fundamental que las webs de diarios para estos dispositivos se diseñen desde la perspectiva de la experiencia de usuario. Este trabajo tiene por objetivo determinar el número óptimo de clics que los usuarios están dispuestos a hacer para llegar a la información que buscan. Para ello, se realizan tests de usuarios para observar el comportamiento y las reacciones de los usuarios respecto a las webs en un diseño concurrente basado en la triangulación que incluye la recopilación de datos cuantitativos y cualitativos. Los resultados muestran que el número de clics no está relacionado con el fracaso pero sí con la percepción de la dificultad. Por eso, es recomendable que las webs de diarios incluyan en sus sitios móviles un motor de búsqueda que permita a los usuarios acceder a la información de manera directa

    Building penetration losses at 3.5 GHz: dependence on polarization and incidence angle

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    We measured and analyzed the building penetration losses for four different kinds of facades as a function of the incidence angle and polarization at 3.5 GHz, which is a frequency of interest for fifth generation (5G) communication systems. Results show that the attenuation may vary up to 8 dB with the incidence angle, which justifies the need for an angular characterization of the penetration losses, going beyond the simpler characterization used for normal incidence. We also found that there is a relevant polarization dependence of this attenuation, as electromagnetic theory predicts for wave transmission across flat discontinuities and even across flat dielectric slabs. Results would be of interest for the network design of future 5G base stations using orthogonal polarizations.Xunta de Galicia | Ref. ED431C 2019/26Ministerio de Ciencia e Innovación | Ref. PID2020-112545RB-C52Fundação para a Ciência e a Tecnologia | Ref. UIDB/EEA/50008/202

    User experience and the media: the three­-click rule on newspaper websites for smartphones

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    Introduction: access to online information is carried out throughout smartphones, so is basic that newspapers websites for these devices are designed from a user experience perspective. This work aims at determining the number of clicks that users are willing to do in order to get the content they are looking for. Methodology: User tests are carried out to observe users' performance and reactions while navigating these websites. The methodological approach is a concurrent design based on triangulation and it includes the collection of quantitative and qualitative data. Results: The number of clicks is not related to failure but it is associated with the perception of difficulty. Discussion and Conclusions: It is advisable for newspapers' mobile websites to include a search engine which allows users to access information straightaway
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