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National Repository of Grey Literature 23 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Elimination Voltammetry with Linear Scan: Advantages and Disadvantages
Navrátil, Tomáš ; Trnková, L. ; Hrdlička, Vojtěch ; Li, X.
Elimination voltammetry with linear scan (EVLS) represents an almost traditional\nmathematical method that helps to obtain additional and detailed information about the recorded\nelectrochemical signals and therefore, to better understand the analyzed systems. Although it\nhas been substantially developed and expanded during its existence of more than a quarter of a\ncentury and has found many areas of application, like any other mathematical and experimental\nmethod, it exhibits several advantages and disadvantages. In this contribution, we summarize\nits strengths, weaknesses, opportunities, as well as threats.\n
Hybrid evaluation of the industrial global impact on Mexican aquifers under uncertain criteria evaluations
Flores Casamayor, H. ; Carpitella, Silvia ; Izquierdo, J. ; Mora-Rodríguez, J. ; Delgado-Galván, X.
The present paper proposes an integrated methodological approach to address the problem of managing five aquifers of Guanajuato state, Mexico, according to such relevant criteria as environmental, social, economic and hydrological aspects. The goal of this research consists in formalizing a structured framework to first evaluate the various degrees of importance of criteria and to secondly get a classification of aquifers by minimizing uncertainty of evaluations. To such an aim, the Analytic Hierarchy Process (AHP) is used for calculating the vector of criteria weights, while the Fuzzy Logic (FL) theory supports in deriving quantitative evaluations of aquifers under each selected criterion. The Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) is then proposed to formalize the final ranking of aquifers, something that will be helpful to understand which alternative matches all the differently weighted criteria in the most suitable way at a practical level. In such a way, getting a comprehensive and strategic overview about the problem of interest will be possible.
Monasteries in Danger. Disputes about Liquidation of Czech and Moravian Monasteries of the "Old Orders" in the Period before the Battle of White Mountain
Chládek, Oldřich ; Čechura, Jaroslav (advisor) ; Maur, Eduard (referee) ; x, (referee)
Liquidation of monasteries in the era of Reformations is a phenomenon which has been studied only to a certain level. There were very many cases of abolished or liquidated monasteries. The author concentrates only on two cases (Augustinian canonries in Kłodzko and Olomouc) where efforts to liquidate a monastery were met with resistance from the community or monastic structures. It is a multilayered topic, requiring a thorough analysis. Due to the fact that these disputes were interfered by a number of influential personalities (supreme provincial officials, nuncios, bishops, superiors of monastic orders etc.), it represents an ideal material to study the relationships within the high society in the era before the Battle of White Mountain. Besides the high politics we can also focus on other aspects - such as legal arguments of the conflicting parties or linguistic, art historical or theological layer. After research not only in Czech, but also in foreign archives (e.g. Rome, Kraków, Kłodzko, Wrocław, Vienna), the author refills or corrects older conclusions (Jan Tenora, Aloys Bach etc.). He also tries to verify the theory that within the Catholic Church those monasteries were abolished which were - in the economic and also spiritual layer - in a state of deep crisis.
Astrophysical Reaction Rates Obtained By Indirect Techniques
Tribble, R. E. ; Al-Abdullah, T. ; Alharbi, A. ; Aysto, J. ; Banu, A. ; Burjan, Václav ; Carstoiu, F. ; Chen, X. ; Clark, H. L. ; Davidson, T. ; Fu, C. ; Gagliardi, C. A. ; Hardy, J. C. ; Iacob, V. E. ; Jokinen, J. ; Kroha, Václav ; Lui, Y. W. ; McCleskey, M. ; Mukhamedzhanov, A. ; Nica, N. ; Park, H. ; Roeder, B. T. ; Saastamoinen, A. ; Simmons, E. ; Tabacaru, G. ; Tokimoto, Y. ; Trache, L. ; Woods, P. J. ; Zhai, Y.
ndirect techniques have been used to obtain information about reaction rates for several proton capture reactions that occur on short-lived nuclei. The techniques used to carry out the measurements are reviewed and the results obtained are presented. Also future prospects for further measurements with a new facility, T-REX, are discussed.
Trojan horse method with neutrons induced reactions: The 17O(n,alpha)14C reaction
Guardo, G. L. ; Spitaleri, C. ; Lamia, L. ; Gulino, M. ; Tang, X. ; Bucher, B. ; Burjan, Václav ; Couder, M. ; Davies, P. ; deBoer, R. ; Fang, X. ; Kroha, Václav ; La Cognata, M. ; Ma, C. ; Mrázek, Jaromír ; Mukhamedzhanov, A. ; Notani, M. ; O'Brien, S. ; Pizzone, R. G. ; Rapisarda, G. G. ; Roberson, D. ; Sergi, M. L. ; Tan, W. ; Wiescher, M.
The experimental study of the 17O(n,alpha)14C reaction has been performed in the energy range 0-350 keV. This reaction could play an important role in explaining heavy elements (s-process) nucleosynthesis in various astrophysical scenario. To over-come the practical problems arising from the neutrons production, a new application of the Trojan Horse Method has been recently suggested.
Monasteries in Danger. Disputes about Liquidation of Czech and Moravian Monasteries of the "Old Orders" in the Period before the Battle of White Mountain
Chládek, Oldřich ; Čechura, Jaroslav (advisor) ; Maur, Eduard (referee) ; x, (referee)
Liquidation of monasteries in the era of Reformations is a phenomenon which has been studied only to a certain level. There were very many cases of abolished or liquidated monasteries. The author concentrates only on two cases (Augustinian canonries in Kłodzko and Olomouc) where efforts to liquidate a monastery were met with resistance from the community or monastic structures. It is a multilayered topic, requiring a thorough analysis. Due to the fact that these disputes were interfered by a number of influential personalities (supreme provincial officials, nuncios, bishops, superiors of monastic orders etc.), it represents an ideal material to study the relationships within the high society in the era before the Battle of White Mountain. Besides the high politics we can also focus on other aspects - such as legal arguments of the conflicting parties or linguistic, art historical or theological layer. After research not only in Czech, but also in foreign archives (e.g. Rome, Kraków, Kłodzko, Wrocław, Vienna), the author refills or corrects older conclusions (Jan Tenora, Aloys Bach etc.). He also tries to verify the theory that within the Catholic Church those monasteries were abolished which were - in the economic and also spiritual layer - in a state of deep crisis.
Morpho-Colorimetric and Non-Parametric Analyses in Statistical Classification of Vascular Flora (Classification in Image Analysis)
Frigau, Luca ; Antoch, Jaromír (advisor) ; Dohnal, Gejza (referee) ; Wilhelm, Adalbert F.X. (referee)
Luca Frigau Abstract of PhD thesis This dissertation deals with statistical methodologies to apply to morphological classification of seeds through extracting information directly from their digital images. It concentrates more on the classifi- cation task, trying to enhance the quality of prediction, and on the automatizing of the classification process. These tasks are very important in botany because they avoid human contradictions in seed classification and to save a lot of time to specialized botanists. Firstly we focused on describing all stages necessary to move from a picture containing raw information of scanned objects to a data matrix usable as input for further statistical analyses. We illustrated how to convert an image so as to enhance its inner contrast in order to get easier the image segmentation. It has been introduced an approach that adapts a widely used method for detecting moving objects from video, called background subtraction (foreground detection), to image segmentation framework. It has been shown how it assists segmentation process to get good results, and allows to automate the process when foreground color of images is not constant, as well as speeding it up significantly. Then methods for enhancing quality of objects and removing residual noise have been illustrated. At the end of...
Projections of future water-energy-vegetation regimes at the Lysina catchment, Czech Republic
Lamačová, Anna ; Yu, X. ; Duffy, Ch. ; Krám, Pavel ; Hruška, Jakub ; Farda, Aleš
Hydrologic models represent useful tools for the understanding of forest hydrological functions. At the Lysina Critical Zone Observatory (50°03’ N, 12°40’ E; area 0.293 km2), a forest catchment in the western Czech Republic, a distributed physics-based hydrologic model, the Penn State Integrated Hydrologic Model (PIHM), was used to simulate long-term hydrological change under forest management practices, and to evaluate the comparative scenarios of the hydrological consequences under anticipated climate change. Stand age-adjusted LAI (leaf area index) curves were generated from an empirical relationship to represent changes in seasonal tree growth. By considering the age-adjusted LAI, the spatially distributed model was able to successfully simulate the integrated hydrologic response from snow melt, recharge, evapotranspiration, groundwater levels, soil moisture and streamfl ow, as well as spatial patterns of each hydrologic state and fl ux variables. Corrected climatic data from the ALADIN-Climate/CZ regional climate model with SRES A1B scenario and diff erent forest age categories (Norway spruce monoculture) were used for projection of hydrologic pattern shift at the study site in the future (2025–2050, 2071–2100). Th e model projections suggested that that the decrease in mean annual runoff would be from 422 mm (observed in 1990–2011) to 361 mm (2021–2100) and 345 mm (2071–2100) with notable changes in seasonal patterns represented by a runoff decrease in the spring and summer months.
Trends of PM2.5 and Chemical Composition in at a Regional Backround Site in the Western Mediteranean over the Past Nine Years
Cusack, Michael ; Alastuey, A. ; Perez, N. ; Pey, J. ; Querol, X.
The findings in this article provide good evidence that the implementation of Pollution abatement strategies in Europr is having a direct effect on the level of PM2.5 and its various components. It is also hypothesised that the current economic climate, in reccesion since mid 2008 in Spain and many counties in Europe, is also affecting atmospheric pollutants through a reduction in activities associated with a healthy economy. A reduction in PM2.5 concentrations has been observed in Spain and across Europe, in most cases, this reduction has been gradual and consistent over time, implying the success of cleaner anthropogenic activities. Additional to this progressive trend, in some cases and especially for RB stations in the IP and Ispra in nothern Italy, a marked decrease has been recorded since 2008, coinciding with the begidding of the economic crisis. Finally, large scale meteorology has been shown to be an important influental factor on ambient aerosol concentrations across the Iberian Peninsula, with the North Atlantic Oscillation controlling the frequency of Sahara dust instrusions across the Iberian Peninsula in winter. Specially at MSY, organic matter and secondary inorganic aerosol accounted for the majority of the reduction observed.
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Resonances of Mácha. Fourth Congress of World Czech Literary Studies: Other Czech Literature (?)
Piorecký, Karel ; Křivánek, Vladimír ; Charypar, Michal ; Fořt, Bohumil ; Hrbata, Zdeněk ; Ibrahim, Robert ; Koten, Jiří ; Sládek, Ondřej ; Sgallová, K. ; Šerlaimova, S. ; Berkes, T. ; Budagova, L. ; Čolakova, Ž. ; Galmiche, X. ; Grigorov, D. ; Melnyčenko, I. ; Procházka, M. ; Valcerová, A.
Arranged every five years at the initiative of the Academy of Sciences of the Czech Republic Institute of Czech Literature, the congress brought together some 150 researchers from all over the world this year. Discussions over “otherness” in Czech literature were divided into four subject areas. In view of the anniversary of Karel Hynek Mácha’s birth in 2010, one of the proceedings was called Resonances of Mácha. The studies included in this collection focus primarily on the work of poets and prose writers whose work forms part of Mácha’s legacy and derives inspiration from him. Another way to understand the importance of Mácha’s work is offered by contributions that place it in the context of European and particularly Central European romanticism. The opportunity also presents itself to consider the influence of interpretations of his texts on the formation of Prague literary studies structuralism.

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