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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Ouyang, J.; Mativenga, P.; Goffin, N.; Liu, W.; +5 Authors

    Selective removal of coatings by lasers can facilitate the reuse of coated tools in a circular economy. In order to optimise and control the process, it is essential to study the impact of process input variables on process performance. In this paper, coating removal from tooling was carried out using a picosecond a pulsed fibre laser, in order to investigate the effects of laser pulse energy, pulse frequency, galvo scanning speed and scanning track stepover. A fractional factorial design of experiments and analysis of variance was used to optimise the process; considering cleaning rate, specific energy consumption and surface integrity as assessed by changes in surface roughness and composition of the tooling after laser cleaning. The results shows synergy between cleaning rate and specific energy with the laser pulse frequency and galvo scanning speed as the two most significant factors, while the laser pulse energy had the greatest contribution to changes in surface composition. Based on extensive experiments, the relationship between processing rate and system specific energy consumption was mathematically modelled. The paper contributes a new specific energy model for laser cleaning and provides a benchmark of the process energy requirements compared to other manufacturing processes. Additionally, the generic scientific learning from this is that the rate of energy input is a key tool for maximising cleaning rate and minimising specific energy requirements, while the intensity of energy applied, is a key metric that influences surface integrity. More complex factors, influence the surface integrity.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao The University of Ma...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    CIRP Journal of Manufacturing Science and Technology
    Article . 2022 . Peer-reviewed
    License: Elsevier TDM
    Data sources: Crossref
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao The University of Ma...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      CIRP Journal of Manufacturing Science and Technology
      Article . 2022 . Peer-reviewed
      License: Elsevier TDM
      Data sources: Crossref
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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Gorria Garde, Kalen;

    En el presente trabajo se ha evaluado el potencial de la tecnología HSI para identificar condiciones de estrés hídrico en el cultivo de patata. Esta tecnología permite conocer propiedades invisibles al ojo humano como puede ser el estado de irrigación de un cultivo en cada momento de su ciclo, evitando así condiciones que afecten a su producción. El material vegetal que se utilizó para este estudio fueron 240 hojas de patata de 6 variedades diferentes procedentes de una finca experimental de Arkaute (Álava) perteneciente al Instituto Vasco de Investigación y Desarrollo Agrario (NEIKER). Las imágenes hiperespectrales se tomaron en el rango 900-1700 nm y tras el procesado de estas se utilizó la herramienta PLS-Toolbox del programa MATLAB con el método supervisado PLS-DA para su análisis estadístico. El 80% del total de las muestras se utilizó para la calibración del modelo y el 20% restante para la validación externa. Los resultados mostraron que el modelo de calibración con mayor porcentaje de muestras correctamente clasificadas en la clase “control” y “estrés hídrico” no coincidía con el de validación externa, lo que significa que le modelo no era capaz de distinguir de forma clara la clase a la que pertenecía cada muestra. A través de la imagen química de las muestras se comprobó que apenas había diferencias entre las hojas de ambas clases, indicando que la diferencia entre tratamientos no es tan perceptible y se deba más a cada variedad, siendo algunas más resistentes que otras a condiciones de estrés hídrico. In the present work, has been evaluated the potential of HSI technology to identify water stress conditions in potato crops. This technology allows knowing properties invisible to the human eye, such as the irrigation status of a crop at each moment of its cycle, avoiding conditions that affect its production. The vegetal material used for this study was 240 potato leaves of 6 different varieties from an experimental farm in Arkaute (Álava) belonging to the Basque Institute for Agricultural Research and Development (NEIKER). The hyperspectral images were taken in the 900-1700 nm range and after processing them, the PLS-Toolbox tool of the MATLAB program was used with the supervised PLSDA method for statistical analysis. 80% of the total samples were used for model calibration and the remaining 20% for external validation. The results showed that the calibration model with the highest percentage of samples correctly classified in the "control" and "water stress" class did not coincide with the external validation model, which means that the model was not capable of clearly distinguishing the class to which each sample belonged. Through the chemical image of the samples, it was found that there were hardly any differences between the leaves of both classes, indicating that the difference between treatments is not so perceptible and is due more to each variety, some being more resistant than others to water stress conditions. Nekazaritza Ingeniaritzako Unibertsitate Masterra Nafarroako Unibertsitate Publikoan Máster Universitario en Ingeniería Agronómica por la Universidad Pública de Navarra

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Recolector de Cienci...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Recolector de Cienci...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Martínez Figueredo, Karla Geraldine;

    Fil: Martínez Figueredo, Karla Geraldine. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina. En este trabajo de Tesis se estudió el desempeño de la conversión de la gamma-valerolactona (GVL) en fase líquida en presencia de pentanol (PeOH) para obtener el intermediario 2-penteneoto de pentilo (PP) sobre diferentes sólidos ácidos. Posteriormente, se enfocó el estudio en la obtención de valerato de pentilo (VP) empleando catalizadores bifuncionales de metales no-nobles (Ni, Co y Cu) y nobles (Ir, Pd, Pt, Rh y Ru). El estudio de los diferentes catalizadores ácidos permitió seleccionar a la SiO2-Al2O3 (SA) como soporte para la preparación por el método de impregnación a humedad incipiente (I) de los diferentes catalizadores bifuncionales. Particularmente, sobre el catalizador de Ni/SA se realizó un estudio exhaustivo de la influencia del método de preparación. Por otra parte, el catalizador de Pd/SA fue el que presentó el mejor desempeño catalítico con una conversión de GVL del 81,1% y una selectividad a VP de 86,4% al cabo de 8 h de reacción. Finalmente, con el catalizador de Pd/SA al igual que con Ni/SA-I se realizaron experiencias adicionales para evaluar los efectos de diversos parámetros operativos mediante la variación de la temperatura (230-270 ⁰C), la presión de H2 (5-15 bar), la concentración inicial de GVL (0,25-0,72 M) y la masa de catalizador (0,15-0,5 g), logrando valores de productividad de VP por gramo de metal entre 7 y 27 veces mayores a los valores informados en la literatura. In this thesis work studied the performance of the conversion of gamma-valerolactone (GVL) in liquid phase in the presence of pentanol (PeOH) to obtain the pentyl 2-pentenoate (PP) intermediate over different solid acids. Subsequently, the study was focused on obtaining pentyl valerate (PV) using bifunctional catalysts of non-noble metals (Ni, Co and Cu) and noble metals (Ir, Pd, Pt, Rh and Ru). The study of the different acid catalysts allowed selecting SiO2-Al2O3 (SA) as a support for the preparation by the incipient wetness impregnation method (I) of the different bifunctional catalysts. Particularly, on the Ni/SA catalyst, an exhaustive study of the influence of the preparation method was carried out. On the other hand, the Pd/SA catalyst was the one that presented the best catalytic performance with a GVL conversion of 81.1% and a PV selectivity of 86.4% after 8 h of reaction. Finally, with the Pd/SA catalyst, as with Ni/SA-I, additional experiments were carried out to evaluate the effects of various operating parameters by means of varying the temperature (230-270 ⁰C), the H2 pressure (5- 15 bar), the initial concentration of GVL (0.25-0.72 M) and the catalyst mass (0.15-0.5 g), achieving PV productivity values per gram of metal between 7 and 27 times higher than the values reported in the literature. Consejo Nacional de Investigaciones Científicas y Técnicas Agencia Nacional de Promoción Científica y Tecnológica Universidad Nacional del Litoral

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Biblioteca Virtual (...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Biblioteca Virtual (...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Lopez-Vidrier, J.; Löper, P.; Schnabel, M.; Hernandez, S.; +4 Authors

    Abstract The optical and photovoltaic properties of Si NCs/SiC multilayers (MLs) are investigated using a membrane-based solar cell structure. By removing the Si substrate in the active cell area, the MLs are studied without any bulk Si substrate contribution. The occurrence is confirmed by scanning electron microscopy and light-beam induced current mapping. Optical characterization combined with simulations allows us to determine the absorption within the ML absorber layer, isolated from the other cell stack layers. The results indicate that the absorption at wavelengths longer than 800 nm is only due to the SiC matrix. The measured short-circuit current is significantly lower than that theoretically obtained from absorption within the ML absorber, which is ascribed to losses that limit carrier extraction. The origin of these losses is discussed in terms of the material regions where recombination takes place. Our results indicate that carrier extraction is most efficient from the Si NCs themselves, whereas recombination is strongest in SiC and residual a-Si domains. Together with the observed onset of the external quantum efficiency at 700–800 nm, this fact is an evidence of quantum confinement in Si NCs embedded in SiC on device level.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao CNR ExploRAarrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    CNR ExploRA
    Article . 2016
    Data sources: CNR ExploRA
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Solar Energy Materials and Solar Cells
    Article . 2016 . Peer-reviewed
    License: Elsevier TDM
    Data sources: Crossref
    Fraunhofer-ePrints
    Article . 2016
    Data sources: Fraunhofer-ePrints
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao CNR ExploRAarrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      CNR ExploRA
      Article . 2016
      Data sources: CNR ExploRA
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      Solar Energy Materials and Solar Cells
      Article . 2016 . Peer-reviewed
      License: Elsevier TDM
      Data sources: Crossref
      Fraunhofer-ePrints
      Article . 2016
      Data sources: Fraunhofer-ePrints
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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Gómez Hernández, Dorian; Domenech Léga, Bruno; Juanpera Gallel, Marc; Ferrer Martí, Laia;

    Plans to extend rural electrification usually face budget constraints, so must prioritize the projects to define the implementation order. The project ranking must be defined with a clear procedure to justify the order among all stakeholders. Moreover, techno-economic and also social criteria must be considered to maximize positive impact and ensure long term sustainability. The current literature in rural electrification still has an economic bias and mainly offers independent designs for each community but no prioritized order to guide the institution promoting the program. This study presents a multicriteria decision-aid procedure to define a hierarchical order of the electrification of the communities throughout a rural region considering technical and social criteria. The proposed procedure starts with an assessment of the region, to determine the socio-economic context of the communities and the local energy resources, Next, the electrification project of each community is designed and assessed considering 7 technical and 7 social criteria. Then, a hierarchical order of electrification of the communities is calculated combining AHP method and discrete compromise programming to find a trade-off ranking involving all criteria. The procedure is applied to 8 communities of the municipality of Cintalapa-Chiapas (Mexico). Ranking results are discussed and complemented with a sensitivity analysis to robustly assist decision-making when implementing the program. The procedure can be adjusted to be used in other contexts. Objectius de Desenvolupament Sostenible::7 - Energia Assequible i No Contaminant::7.2 - Per a 2030, augmentar substancialment el percentatge d’energia renovable en el con­junt de fonts d’energia Objectius de Desenvolupament Sostenible::7 - Energia Assequible i No Contaminant::7.1 - Per a 2030, garantir l’accés universal a serveis d’energia assequibles, confiables i moderns Objectius de Desenvolupament Sostenible::7 - Energia Assequible i No Contaminant::7.3 - Per a 2030, duplicar la taxa mundial de millora de l’eficiència energètica Objectius de Desenvolupament Sostenible::7 - Energia Assequible i No Contaminant Peer Reviewed

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Energy for Sustainab...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Energy for Sustainab...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Strelec, Sandra;

    Cretovi su specifična vlažna staništa koje karakterizira prisutnost mahova tresetara. Cret Trstenik relikt je ledenog doba, a ugrožen je sukcesijskim promjenama u vegetaciji i širenjem trave modre beskoljenke. Okućene amebe su protisti koji u močvarnim staništima postižu veliku brojnost. Ciljevi istraživanja bili su: i) utvrditi postoji li razlika u sastavu zajednice okućenih ameba na različitim staništima unutar creta Trstenik (na tipičnim cretnim staništima i na staništima zahvaćenim sukcesijskim promjenama), ii) utvrditi utjecaj glavnih okolišnih čimbenika na sastav zajednice na tri različita staništa unutar creta Trstenik; te iii) odrediti indikatorske vrste na temelju kojih je moguće procijeniti utjecaj klimatskih promjena na bioraznolikost creta Trstenik. Ukupno je zabilježeno 58 vrsti okućenih ameba, pri čemu je najveća raznolikost utvrđena na tipičnom cretnom staništu, a najmanja na rubu creta. Na prostornu raspodjelu okućenih ameba na različitim staništima creta najviše je utjecala pH vrijednost. Abundancija značajnih indikatorskih vrsta za središte creta značajno pozitivno korelirala s vlažnošću tla i pH, dok abundancija značajnih indikatorskih vrsta za rub creta negativno korelirala sa vlažnošću tla. Indikatorske vrste pronađene na rubu creta karakteristične su za suha staništa. Rezultati ovog istraživanja pokazuju da je cret Trstenik još uvijek ekosustav relativno visoke raznolikosti vrsta okućenih ameba, ali i da su sukcesijske promjene vidljive na pojedinim dijelovima creta i moguće ih je detektirati na mikroskali.tresetišta, Bogs are specific wet habitats where various species of Sphagnum mosses predominate. The Trstenik bog is a relic from the Ice Age, currently threatened by successional changes in vegetation and the spread of purple moor-grass. Testate amoebae are a polyphyletic group of protists particularly numerous and diverse in peat bogs. The objectives of the study were to: i) determine whether there are differences in testate amoeba community composition in different habitats in Trstenik bog; ii) determine the effects of key environmental factors on testate amoeba community composition; and iii) identify potential indicator species. A total of 58 species of testate amoebae were recorded. The highest diversity of species was recorded in the typical bog habitat, while the bog edge had the lowest diversity. pH was the most important environmental factor determining the spatial distribution of species among the three habitats. Abundance of the indicator species identified for the typical bog habitat was positively correlated with soil moisture and pH, while the abundance of those identified for the bog edge was negatively correlated with soil moisture. The results of this study show that the Trstenik bog continues to have high diversity of testate amoebae species, but that successional changes are present and can be successfully detected at the microscale.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repository of the Fa...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Repository of the Fa...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Gomezgil Yaspik, Vianney;

    In recent decades, many societal changes have unfolded, including population ageing, reconfigurations of household structures, labour market transformation, and a secular deceleration of economic growth. These shifts pose considerable challenges to preexisting welfare states, particularly to the efficacy of countries’ pension systems. This dissertation examines the context and trajectory of pension reforms in Mexico, the United Kingdom, and the United States. Its contribution is to ascertain the viability and political feasibility of reforms that enhance the financial sustainability of their pension systems, while maintaining adequate income and coverage levels. The dissertation builds on political economy approaches and on the institutionalist literature, which highlight how the role of interest groups and structure of institutions and political systems shape policy outcomes. The frameworks of blame avoidance and credit-claiming are also considered, to provide a comprehensive analysis of the complex dynamics surrounding pension systems and reform efforts. This dissertation uses a mixed-methods approach – including public opinion surveys of 3,000+ individuals, semi-structured elite interviews, historical document analyses, and specialized fiscal and actuarial projections of selected pension reforms in the three selected countries. It addresses three core research questions: 1) What is the current context for pension reform in Mexico, the United Kingdom, and the United States given their histories? 2) Is the necessary (for achieving specific minimum levels of sustainability, adequacy, and coverage) pension reform politically feasible? 3) How do the characteristics of each reform affect its political feasibility? Corollary: The modification of which channel (benefits, contributions, retirement age) is perceived as more politically feasible for diverse stakeholders? The methodology chosen provides a timely picture of the context surrounding potential pension reforms in the three case studies. In Mexico, credit-claiming and the interests of private stakeholders explain the success of recent pension reforms, and partisan politics are the key determinants for future fiscal changes. For the United Kingdom, the institutionalist literature helps explain the reasons for the relatively easier reform avenues; the most politically feasible reforms are those in the private sector, while the housing market is of key importance for pensions. In the United States, the institutionalist literature and the framework of blame avoidance also help explain the current legislative gridlock and the reasons why no major reform has been enacted for decades. For Mexico and the United Kingdom there exist politically feasible reforms, notably a modification of the retirement age channel, that can increase the system’s sustainability while maintaining income adequacy and coverage; whereas based on the current context of extreme polarisation and legislative gridlock, there do not seem to exist politically feasible pension reforms that preserve the structure of Social Security in the United States. The dissertation brings the lens of political feasibility to bear on a previously technical literature on the structure of the pension systems in the three countries, and thus on the feasibility of reform to deliver financial sustainability, adequacy of retirement incomes, and adequate coverage of the old age population. It identifies the feasible routes for reform in Mexico and the United Kingdom, but concludes that the political economy context the United States has reached rules out feasible reforms of its current pension structures.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Apolloarrow_drop_down
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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Vasudevan, Krishnakumar R.; Ramachandaramurthy, Vigna K.; Venugopal, Gomathi; Guerrero, Josep M.; +1 Authors

    The proliferation of renewable energy sources in autonomous microgrids has led to the deterioration of system inertia. In the past decade, the decrease in system inertia was addressed through numerous virtual synchronous generator (VSG) topologies. Synchronverter is one such control technique exhibiting promising performance as that of synchronous machines (SMs). Recently, myriad other modifications were carried out to enhance the capability of the synchronverter for better dynamic response. However, the limitations of fixed virtual inertia and damping coefficient were left untouched, which can be optimized for better frequency regulation of microgrids. Hence, this paper proposes an adaptive synchronverter (ASV) by optimizing OSV parameters through fuzzy logic. Subsequently, the proposed ASV was employed to control a novel pico hydel and battery hybrid energy storage for frequency regulation of the microgrid. The small-signal model of parallel operating ASVs is presented along with the eigenvalue analysis to prove the system stability under parameter variation. The MATLAB/Simulink simulation results revealed that the proposed ASV exhibited a lower rate of change of frequency and frequency nadir compared to the original synchronverter (OSV) and vector control (VC).

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao VBN; Applied Energy;...arrow_drop_down
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Elettra Agliardi; Thomas Alexopoulos; Kleanthis Karvelas;

    Our research uses the environmental pillar of ESG as a proxy for environmental corporate social responsibility. We examine the performance of environmentally clustered portfolios by using simple quantitative investment strategies with optimum asset rotation. Post-hoc, sample-split analysis with non-parametric tests is performed. The results suggest that both environmental status and dynamic environmental performance are key characteristics of divergent financial behaviors. We show that environmentally low-rated companies present better financial performance, while environmental leaders are less risky and show more resilience. Assets with a dynamic environmental profile outperform on average in terms of returns and risk. Furthermore, supporting evidence of positive spillovers in high-rated environmental clusters is identified after the Paris Agreement. We evaluate the resilience of the environmental clusters during the COVID-19 crisis and the Russia-Ukraine war effect

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Archivio istituziona...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Energy Economics
    Article . 2023 . Peer-reviewed
    License: Elsevier TDM
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    SSRN Electronic Journal
    Article . 2022 . Peer-reviewed
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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: William R, Leonard; Stanley J, Ulijaszek;

    AbstractThe study of energetics is important to human biology because the availability and utilization of food energy influence health, survival, and reproduction. Over the last decade, human biologists, biological anthropologists, and other evolutionary scientists have increasingly come to recognize the importance of energy dynamics in shaping evolutionary processes. Thus far, different lines of energetics research have been conducted largely in isolation from one another. This thematic collection examines topics of evolutionary energetics from several different perspectives, drawing together research from human paleontology, comparative primate and mammalian biology, human population biology, and mathematical modeling. It represents a starting point for further integrative research on human evolutionary energetics. Am. J. Hum. Biol. 14: 547–550, 2002. © 2002 Wiley‐Liss, Inc.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Oxford University Re...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    American Journal of Human Biology
    Article . 2002 . Peer-reviewed
    License: Wiley Online Library User Agreement
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Oxford University Re...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      American Journal of Human Biology
      Article . 2002 . Peer-reviewed
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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Ouyang, J.; Mativenga, P.; Goffin, N.; Liu, W.; +5 Authors

    Selective removal of coatings by lasers can facilitate the reuse of coated tools in a circular economy. In order to optimise and control the process, it is essential to study the impact of process input variables on process performance. In this paper, coating removal from tooling was carried out using a picosecond a pulsed fibre laser, in order to investigate the effects of laser pulse energy, pulse frequency, galvo scanning speed and scanning track stepover. A fractional factorial design of experiments and analysis of variance was used to optimise the process; considering cleaning rate, specific energy consumption and surface integrity as assessed by changes in surface roughness and composition of the tooling after laser cleaning. The results shows synergy between cleaning rate and specific energy with the laser pulse frequency and galvo scanning speed as the two most significant factors, while the laser pulse energy had the greatest contribution to changes in surface composition. Based on extensive experiments, the relationship between processing rate and system specific energy consumption was mathematically modelled. The paper contributes a new specific energy model for laser cleaning and provides a benchmark of the process energy requirements compared to other manufacturing processes. Additionally, the generic scientific learning from this is that the rate of energy input is a key tool for maximising cleaning rate and minimising specific energy requirements, while the intensity of energy applied, is a key metric that influences surface integrity. More complex factors, influence the surface integrity.

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao The University of Ma...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    CIRP Journal of Manufacturing Science and Technology
    Article . 2022 . Peer-reviewed
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao The University of Ma...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
      CIRP Journal of Manufacturing Science and Technology
      Article . 2022 . Peer-reviewed
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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Gorria Garde, Kalen;

    En el presente trabajo se ha evaluado el potencial de la tecnología HSI para identificar condiciones de estrés hídrico en el cultivo de patata. Esta tecnología permite conocer propiedades invisibles al ojo humano como puede ser el estado de irrigación de un cultivo en cada momento de su ciclo, evitando así condiciones que afecten a su producción. El material vegetal que se utilizó para este estudio fueron 240 hojas de patata de 6 variedades diferentes procedentes de una finca experimental de Arkaute (Álava) perteneciente al Instituto Vasco de Investigación y Desarrollo Agrario (NEIKER). Las imágenes hiperespectrales se tomaron en el rango 900-1700 nm y tras el procesado de estas se utilizó la herramienta PLS-Toolbox del programa MATLAB con el método supervisado PLS-DA para su análisis estadístico. El 80% del total de las muestras se utilizó para la calibración del modelo y el 20% restante para la validación externa. Los resultados mostraron que el modelo de calibración con mayor porcentaje de muestras correctamente clasificadas en la clase “control” y “estrés hídrico” no coincidía con el de validación externa, lo que significa que le modelo no era capaz de distinguir de forma clara la clase a la que pertenecía cada muestra. A través de la imagen química de las muestras se comprobó que apenas había diferencias entre las hojas de ambas clases, indicando que la diferencia entre tratamientos no es tan perceptible y se deba más a cada variedad, siendo algunas más resistentes que otras a condiciones de estrés hídrico. In the present work, has been evaluated the potential of HSI technology to identify water stress conditions in potato crops. This technology allows knowing properties invisible to the human eye, such as the irrigation status of a crop at each moment of its cycle, avoiding conditions that affect its production. The vegetal material used for this study was 240 potato leaves of 6 different varieties from an experimental farm in Arkaute (Álava) belonging to the Basque Institute for Agricultural Research and Development (NEIKER). The hyperspectral images were taken in the 900-1700 nm range and after processing them, the PLS-Toolbox tool of the MATLAB program was used with the supervised PLSDA method for statistical analysis. 80% of the total samples were used for model calibration and the remaining 20% for external validation. The results showed that the calibration model with the highest percentage of samples correctly classified in the "control" and "water stress" class did not coincide with the external validation model, which means that the model was not capable of clearly distinguishing the class to which each sample belonged. Through the chemical image of the samples, it was found that there were hardly any differences between the leaves of both classes, indicating that the difference between treatments is not so perceptible and is due more to each variety, some being more resistant than others to water stress conditions. Nekazaritza Ingeniaritzako Unibertsitate Masterra Nafarroako Unibertsitate Publikoan Máster Universitario en Ingeniería Agronómica por la Universidad Pública de Navarra

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Recolector de Cienci...arrow_drop_down
    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Recolector de Cienci...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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  • image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
    Authors: Martínez Figueredo, Karla Geraldine;

    Fil: Martínez Figueredo, Karla Geraldine. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina. En este trabajo de Tesis se estudió el desempeño de la conversión de la gamma-valerolactona (GVL) en fase líquida en presencia de pentanol (PeOH) para obtener el intermediario 2-penteneoto de pentilo (PP) sobre diferentes sólidos ácidos. Posteriormente, se enfocó el estudio en la obtención de valerato de pentilo (VP) empleando catalizadores bifuncionales de metales no-nobles (Ni, Co y Cu) y nobles (Ir, Pd, Pt, Rh y Ru). El estudio de los diferentes catalizadores ácidos permitió seleccionar a la SiO2-Al2O3 (SA) como soporte para la preparación por el método de impregnación a humedad incipiente (I) de los diferentes catalizadores bifuncionales. Particularmente, sobre el catalizador de Ni/SA se realizó un estudio exhaustivo de la influencia del método de preparación. Por otra parte, el catalizador de Pd/SA fue el que presentó el mejor desempeño catalítico con una conversión de GVL del 81,1% y una selectividad a VP de 86,4% al cabo de 8 h de reacción. Finalmente, con el catalizador de Pd/SA al igual que con Ni/SA-I se realizaron experiencias adicionales para evaluar los efectos de diversos parámetros operativos mediante la variación de la temperatura (230-270 ⁰C), la presión de H2 (5-15 bar), la concentración inicial de GVL (0,25-0,72 M) y la masa de catalizador (0,15-0,5 g), logrando valores de productividad de VP por gramo de metal entre 7 y 27 veces mayores a los valores informados en la literatura. In this thesis work studied the performance of the conversion of gamma-valerolactone (GVL) in liquid phase in the presence of pentanol (PeOH) to obtain the pentyl 2-pentenoate (PP) intermediate over different solid acids. Subsequently, the study was focused on obtaining pentyl valerate (PV) using bifunctional catalysts of non-noble metals (Ni, Co and Cu) and noble metals (Ir, Pd, Pt, Rh and Ru). The study of the different acid catalysts allowed selecting SiO2-Al2O3 (SA) as a support for the preparation by the incipient wetness impregnation method (I) of the different bifunctional catalysts. Particularly, on the Ni/SA catalyst, an exhaustive study of the influence of the preparation method was carried out. On the other hand, the Pd/SA catalyst was the one that presented the best catalytic performance with a GVL conversion of 81.1% and a PV selectivity of 86.4% after 8 h of reaction. Finally, with the Pd/SA catalyst, as with Ni/SA-I, additional experiments were carried out to evaluate the effects of various operating parameters by means of varying the temperature (230-270 ⁰C), the H2 pressure (5- 15 bar), the initial concentration of GVL (0.25-0.72 M) and the catalyst mass (0.15-0.5 g), achieving PV productivity values per gram of metal between 7 and 27 times higher than the values reported in the literature. Consejo Nacional de Investigaciones Científicas y Técnicas Agencia Nacional de Promoción Científica y Tecnológica Universidad Nacional del Litoral

    image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Biblioteca Virtual (...arrow_drop_down
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      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Biblioteca Virtual (...arrow_drop_down
      image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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