702 research outputs found

    Innovación tecnológica en la industria de bebidas

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    L’objetiu del treball ha sigut el conèixer i exposar algunes de les tecnologies emergents de la indústria de l’alimentació, i específicament de la indústria de begudes alcohóliques En la primera part s’expliquen els processos d’obtención d’algunes begudes. En la segona part es tracten algunes tecnologies emergents i les seves aplicacions a les begudes alcohóliques, detallant instalacions, tipus de processos i aplicacions La tecnologia d’Altes Pressions (AP) tracta els productes a fi d’inactivar els microorganismes i enzims per l’òptima conservació sense degradar els components organolèptics. La tecnologia de membranes (TM) presenta avantatges amb respecte als mètodes de concentració tradicionals, com treballar a baixes temperatures el que evita pèrdues d’aromes, necesita menys energía, menys costos de funcionament, etc. El gran problema es l’embrutament que limita el rendiment del procés. L’Extracció de Fluids Supercrítics (EFSC) és una tècnica de separació de substàncies dissoltes en una matriu, basada en la capacitat de determinats fluids en estat supercrític de modificar el seu poder dissolvent. Els Polsos Eléctrics d’Alta Intensitat (PEAI) són un mètode emergent de conservació. L’electricitat afecta als microorganismes afectant a la membrana. Es un mètode del que s’esperen obtenir productes d’alta qualitat. Finalment, l’Irradiación d’Aliments (IA) és un tractament ionitzant que té como a fi sanejar i/o allargar la vida de l’aliment aconseguint l’inhibició de la germinació, desinfecció, esterilització, etc

    Estudio de las propiedades de sorción de humendad del bacalao salado y seco

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    Se ha determinado el efecto de la temperatura (a 10, 20 y 30° C) sobre l a~ isotermas de sorci6n del bacalao, comprobándose que tienen poca innucncia sobre el contenido acuoso en equilibrio. Se han obtenido las isotennas de sorción del clomro sódico y de las principales impu· rezas de la sal comercial, observándose que entre las isotermas de las sales puras existen di· ferencias muy marcadas, pero como impurezas en las proporciones normales no inOuycn sobre la sorción de humedad del CINa. Al estudiar el efecto de distintas condiciones de humedad y temperatura sobre el ba· calao en bolsas no se apreciaron cambios de peso en las muestras con bolsas intactas. Se ha visto que la rotura de las bolsas tiene cierta influencia sobre la sorción de humedad. En condiciones experimentales se ha comprobado que para el bacalao plano o desmc· nu1ado existe una relación estrecha entre peso del producto y humedad relativa ambien· tal, no observándose efectos muy marcados en el bacalao en bolsa

    Maximum Entropy Closure of Balance Equations for Miniband Semiconductor Superlattices

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    Charge transport in nanosized electronic systems is described by semiclassical or quantum kinetic equations that are often costly to solve numerically and difficult to reduce systematically to macroscopic balance equations for densities, currents, temperatures and other moments of macroscopic variables. The maximum entropy principle can be used to close the system of equations for the moments but its accuracy or range of validity are not always clear. In this paper, we compare numerical solutions of balance equations for nonlinear electron transport in semiconductor superlattices. The equations have been obtained from Boltzmann-Poisson kinetic equations very far from equilibrium for strong fields, either by the maximum entropy principle or by a systematic Chapman-Enskog perturbation procedure. Both approaches produce the same current-voltage characteristic curve for uniform fields. When the superlattices are DC voltage biased in a region where there are stable time periodic solutions corresponding to recycling and motion of electric field pulses, the differences between the numerical solutions produced by numerically solving both types of balance equations are smaller than the expansion parameter used in the perturbation procedure. These results and possible new research venues are discussed.This work has been supported by the Ministerio de Economía y Competitividad grant MTM2014-56948-C2-2-P

    High-Performance low-vcc in-order core

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    Power density grows in new technology nodes, thus requiring Vcc to scale especially in mobile platforms where energy is critical. This paper presents a novel approach to decrease Vcc while keeping operating frequency high. Our mechanism is referred to as immediate read after write (IRAW) avoidance. We propose an implementation of the mechanism for an Intel® SilverthorneTM in-order core. Furthermore, we show that our mechanism can be adapted dynamically to provide the highest performance and lowest energy-delay product (EDP) at each Vcc level. Results show that IRAW avoidance increases operating frequency by 57% at 500mV and 99% at 400mV with negligible area and power overhead (below 1%), which translates into large speedups (48% at 500mV and 90% at 400mV) and EDP reductions (0.61 EDP at 500mV and 0.33 at 400mV).Peer ReviewedPostprint (published version

    Analysis of the geometric altimetry to support aircraft optimal profiles within future 4D trajectory management

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    The use of barometric altimetry is to some extent a limiting factor on safety, predictability and efficiency of aircraft operations, and reduces the potential of the trajectory based operations capabilities. However, geometric altimetry could be used to improve all of these aspects. Nowadays aircraft altitude is estimated by applying the International Standard Atmosphere which differs from real altitude. At different temperatures for an assigned barometric altitude, aerodynamic forces are different and this has a direct relationship with time, fuel consumption and range of the flight. The study explores the feasibility of using sensors providing geometric reference altitude, in particular, to supply capabilities for the optimization of vertical profiles and also, their impact on the vertical Air Traffic Management separation assurance processes. One of the aims of the thesis is to assess if geometric altitude fulfils the aeronautical requirements through existing sensors. Also the thesis will elaborate on the advantages of geometric altitude over the barometric altitude in terms of efficiency for vertical navigation. The evidence that geometric altitude is the best choice to improve the efficiency in vertical profile and aircraft capacity by reducing vertical uncertainties will also be shown. In this paper, an atmospheric study is presented, as well as the impact of temperature deviation from International Standard Atmosphere model is analyzed in order to obtain relationship between geometric and barometric altitude. Furthermore, an aircraft model to study aircraft vertical profile is provided to analyse trajectories based on geometric altitudes

    Nueva cepa de TRICHODERMA SATURNISPORUM, composiciones y aplicaciones de la misma

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    Número de publicación: 2 411 807 Número de solicitud: 201132042 51 Int. CI.: C12N 1/14 (2006.01) C12P 1/02 (2006.01) C12R 1/885 (2006.01)Nueva cepa de Trichoderma saturnisporum, composiciones y aplicaciones de la misma. La presente invención se refiere a una nueva cepa de Trichoderma saturnisporum con número de depósito CECT nº 20781. Asimismo se refiere a una composición fitosanitaria que comprende dicha cepa y a su empleo para el control biológico de plagas, para potenciar el crecimiento y/o producción de cultivos hortícolas o plantas y para la descomposición de materia orgánica

    Oral squamous cell carcinoma of tongue: Histological risk assessment. A pilot study

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    Background: More than 90% of malignant tumors diagnosed in the oral cavity are Oral Squamous Cell Carcinomas (OSCC) whose preferred location is the tongue. Classically, this disease has affected men preferentially, although recent studies suggest that trends are changing and the proportion of women with OSCC is increasing. In addition, the prevalence of oral cancer is also determined by some risk factors as alcohol consumption and tobacco. Currently, the Tumor, Node, Metastasis (TNM) classification is employed to defined tumor stage and based on this guide specific treatments are established. However, 5-year-survival does not exceed 50% of cases. The objective of this study is to determine whether a histological risk pattern indicative of higher recurrence might be present in T1-T2 tumors located in the anterior two thirds of the tongue. Material and Methods: Samples from 26 patients with OSCC were analyzed and histological risk pattern of recurrent and non-recurrent tumors were compared. We have analyzed histological variables described in Anneroth and Brandwein-Gensler classifications. Additionally, we have also examined both clinical variables such as age, sex or comorbidities, as well as habits such as tobacco or alcohol consumption. Results: We found that sex (male) and keratinization degree (high or moderate) are directly related with OSCC recurrence. In fact, free illness time is lower in men and higher in those cases with minimal or no keratinization. Conclusions: Based on the variables analyzed, it has not been possible to establish a histological risk pattern that, complementary to the TNM classification, could have a predictive role in these early-stage tongue carcinoma

    Ensemble Averages, Soliton Dynamics and Influence of Haptotaxis in a Model of Tumor-Induced Angiogenesis

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    In this work, we present a numerical study of the influence of matrix degrading enzyme (MDE) dynamics and haptotaxis on the development of vessel networks in tumor-induced angiogenesis. Avascular tumors produce growth factors that induce nearby blood vessels to emit sprouts formed by endothelial cells. These capillary sprouts advance toward the tumor by chemotaxis (gradients of growth factor) and haptotaxis (adhesion to the tissue matrix outside blood vessels). The motion of the capillaries in this constrained space is modelled by stochastic processes (Langevin equations, branching and merging of sprouts) coupled to continuum equations for concentrations of involved substances. There is a complementary deterministic description in terms of the density of actively moving tips of vessel sprouts. The latter forms a stable soliton-like wave whose motion is influenced by the different taxis mechanisms. We show the delaying effect of haptotaxis on the advance of the angiogenic vessel network by direct numerical simulations of the stochastic process and by a study of the soliton motion.We thank Vincenzo Capasso, Bjorn Birnir and Boris Malomed for fruitful discussions. This work has been supported by the Ministerio de Economía y Competitividad grant MTM2014-56948-C2-2-P

    A generic I/O architecture for data-intensiveapplications based on in-memorydistributed cache

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    Proceedings of the First PhD Symposium on Sustainable Ultrascale Computing Systems (NESUS PhD 2016) Timisoara, Romania. February 8-11, 2016.The evolution in scientific computing towards data-intensive applications and the increase of heterogeneity in the computing resources, are exposing new challenges in the I/O layer requirements. We propose a generic I/O architecture for data-intensive applications based on in-memory distributed caching. This solution leverages the evolution of network capacities and the price drop in memory to improve I/O performance for I/O-bounded applications adaptable to existing high-performance scenarios. We have showed the potential improvementsEuropean Cooperation in Science and Technology. COSTThis work is partially supported by EU under the COST Program Action IC1305: Network for Sustainable Ultrascale Computing (NESUS). This work is partially supported by the grant TIN2013-41350-P, Scalable Data Management Techniques for High-End Computing Systems from the Spanish Ministry of Economy and Competitiveness
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