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  • 1
    Online Resource
    Online Resource
    Využití geomorfologických charakteristik pro odhad celkové retence povodí
    Vyzkumny ustav vodohospodarsky T. G. Masaryka, v. v. i. ; 2016
    In:  Vodohospodářské technicko-ekonomické informace Vol. 58, No. 6 ( 2016-12-06), p. 54-
    Details
    In: Vodohospodářské technicko-ekonomické informace, Vyzkumny ustav vodohospodarsky T. G. Masaryka, v. v. i., Vol. 58, No. 6 ( 2016-12-06), p. 54-
    Type of Medium: Online Resource
    ISSN: 0322-8916
    URL: Article
    DOI: 10.46555/VTEI.2016.09.007
    Language: Unknown
    Publisher: Vyzkumny ustav vodohospodarsky T. G. Masaryka, v. v. i.
    Publication Date: 2016
    detail.hit.zdb_id: 2848137-9
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  • 2
    Online Resource
    Online Resource
    The rainfall erosivity factor in the Czech Republic and its uncertainty
    Copernicus GmbH ; 2016
    In:  Hydrology and Earth System Sciences Vol. 20, No. 10 ( 2016-10-25), p. 4307-4322
    Details
    In: Hydrology and Earth System Sciences, Copernicus GmbH, Vol. 20, No. 10 ( 2016-10-25), p. 4307-4322
    Abstract: Abstract. In the present paper, the rainfall erosivity factor (R factor) for the area of the Czech Republic is assessed. Based on 10 min data for 96 stations and corresponding R factor estimates, a number of spatial interpolation methods are applied and cross-validated. These methods include inverse distance weighting, standard, ordinary, and regression kriging with parameters estimated by the method of moments and restricted maximum likelihood, and a generalized least-squares (GLS) model. For the regression-based methods, various statistics of monthly precipitation as well as geographical indices are considered as covariates. In addition to the uncertainty originating from spatial interpolation, the uncertainty due to estimation of the rainfall kinetic energy (needed for calculation of the R factor) as well as the effect of record length and spatial coverage are also addressed. Finally, the contribution of each source of uncertainty is quantified. The average R factor for the area of the Czech Republic is 640 MJ ha−1 mm h−1, with values for the individual stations ranging between 320 and 1520 MJ ha−1 mm h−1. Among various spatial interpolation methods, the GLS model relating the R factor to the altitude, longitude, mean precipitation, and mean fraction of precipitation above the 95th percentile of monthly precipitation performed best. Application of the GLS model also reduced the uncertainty due to the record length, which is substantial when the R factor is estimated for individual sites. Our results revealed that reasonable estimates of the R factor can be obtained even from relatively short records (15–20 years), provided sufficient spatial coverage and covariates are available.
    Type of Medium: Online Resource
    ISSN: 1607-7938
    URL: Article
    URL: Article
    DOI: 10.5194/hess-20-4307-2016
    DOI: 10.5194/hess-20-4307-2016-supplement
    Language: English
    Publisher: Copernicus GmbH
    Publication Date: 2016
    detail.hit.zdb_id: 2100610-6
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  • 3
    Online Resource
    Online Resource
    Participatory Climate Change Impact Assessment in Three Czech Cities: The Case of Heatwaves
    MDPI AG ; 2018
    In:  Sustainability Vol. 10, No. 6 ( 2018-06-07), p. 1906-
    Details
    In: Sustainability, MDPI AG, Vol. 10, No. 6 ( 2018-06-07), p. 1906-
    Abstract: Cities are complex socioecological systems that are particularly vulnerable to the impacts of climate change and are also exposed to other trends, such as urbanization and population aging. Due to the changing climate, days with extreme temperatures are expected to become more numerous, which is particularly important for urban areas, where the urban heat island phenomenon is observed. This study presents an example of a spatially explicit potential climate change impact assessment of heatwaves integrating both science and stakeholder participation for three large Czech cities (Prague, Brno, and Pilsen). Stakeholder participation exercises were used to prioritize climate change risks, provide impetus and opportunity for knowledge co-production, and support adaptation planning. Potential climate change impacts of heatwaves in the three Czech cities for the current baseline (1981–2010) and for the future (2021–2040) using Representative Concentration Pathways (RCPs)—RCP 4.5 and RCP 8.5, were mapped at two levels describing “in-city” and “inter-city” comparison. When comparing the potential impact of heatwaves across the three cities (“inter-city”), the most affected city is Brno, with 10.5% of its area in the very high impact category for the baseline and both RCPs. The “in-city” comparison shows the differences between the baseline and future scenarios of each city. The assessment of heatwaves’ impacts was further used to support urban adaptation planning.
    Type of Medium: Online Resource
    ISSN: 2071-1050
    URL: Article
    DOI: 10.3390/su10061906
    Language: English
    Publisher: MDPI AG
    Publication Date: 2018
    detail.hit.zdb_id: 2518383-7
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  • 4
    Online Resource
    Online Resource
    The Ring Monstrance from the Loreto treasury in Prague: handheld Raman spectrometer for identification of gemstones
    The Royal Society ; 2016
    In:  Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences Vol. 374, No. 2082 ( 2016-12-13), p. 20160042-
    Details
    In: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, The Royal Society, Vol. 374, No. 2082 ( 2016-12-13), p. 20160042-
    Abstract: A miniature lightweight portable Raman spectrometer and a palm-sized device allow for fast and unambiguous detection of common gemstones mounted in complex jewels. Here, complex religious artefacts and the Ring Monstrance from the Loreto treasury (Prague, Czech Republic; eighteenth century) were investigated. These discriminations are based on the very good correspondence of the wavenumbers of the strongest Raman bands of the minerals. Very short laser illumination times and efficient collection of scattered light were sufficient to obtain strong diagnostic Raman signals. The following minerals were documented: quartz and its varieties, beryl varieties (emerald), corundum varieties (sapphire), garnets (almandine, grossular), diamond as well as aragonite in pearls. Miniature Raman spectrometers can be recommended for common gemmological work as well as for mineralogical investigations of jewels and cultural heritage objects whenever the antiquities cannot be transported to a laboratory. This article is part of the themed issue ‘Raman spectroscopy in art and archaeology’.
    Type of Medium: Online Resource
    ISSN: 1364-503X , 1471-2962
    URL: Article
    DOI: 10.1098/rsta.2016.0042
    RVK:
    AX 30011
    Language: English
    Publisher: The Royal Society
    Publication Date: 2016
    detail.hit.zdb_id: 208381-4
    detail.hit.zdb_id: 1462626-3
    SSG: 11
    SSG: 5,1
    SSG: 5,21
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  • 5
    Online Resource
    Online Resource
    Collaborative scenario building: Engaging stakeholders to unravel opportunities for urban adaptation planning
    Elsevier BV ; 2022
    In:  Urban Climate Vol. 45 ( 2022-09), p. 101277-
    Details
    In: Urban Climate, Elsevier BV, Vol. 45 ( 2022-09), p. 101277-
    Type of Medium: Online Resource
    ISSN: 2212-0955
    URL: Article
    DOI: 10.1016/j.uclim.2022.101277
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2022
    detail.hit.zdb_id: 2683732-8
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  • 6
    Online Resource
    Online Resource
    Modelování efektu přírodě blízkých opatření na hydrologickou bilanci v povodí Trkmanky
    Vyzkumny ustav vodohospodarsky T. G. Masaryka, v. v. i. ; 2017
    In:  Vodohospodářské technicko-ekonomické informace Vol. 60, No. 4 ( 2017-08-10), p. 21-
    Details
    In: Vodohospodářské technicko-ekonomické informace, Vyzkumny ustav vodohospodarsky T. G. Masaryka, v. v. i., Vol. 60, No. 4 ( 2017-08-10), p. 21-
    Type of Medium: Online Resource
    ISSN: 0322-8916
    URL: Article
    DOI: 10.46555/VTEI.2017.05.004
    Language: Unknown
    Publisher: Vyzkumny ustav vodohospodarsky T. G. Masaryka, v. v. i.
    Publication Date: 2017
    detail.hit.zdb_id: 2848137-9
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  • 7
    Online Resource
    Online Resource
    Review of Carnot Battery Technology Commercial Development
    MDPI AG ; 2022
    In:  Energies Vol. 15, No. 2 ( 2022-01-17), p. 647-
    Details
    In: Energies, MDPI AG, Vol. 15, No. 2 ( 2022-01-17), p. 647-
    Abstract: Carnot batteries are a quickly developing group of technologies for medium and long duration electricity storage. It covers a large range of concepts which share processes of a conversion of power to heat, thermal energy storage (i.e., storing thermal exergy) and in times of need conversion of the heat back to (electric) power. Even though these systems were already proposed in the 19th century, it is only in the recent years that this field experiences a rapid development, which is associated mostly with the increasing penetration of intermittent cheap renewables in power grids and the requirement of electricity storage in unprecedented capacities. Compared to the more established storage options, such as pumped hydro and electrochemical batteries, the efficiency is generally much lower, but the low cost of thermal energy storage in large scale and long lifespans comparable with thermal power plants make this technology especially feasible for storing surpluses of cheap renewable electricity over typically dozens of hours and up to days. Within the increasingly extensive scientific research of the Carnot Battery technologies, commercial development plays the major role in technology implementation. This review addresses the gap between academia and industry in the mapping of the technologies under commercial development and puts them in the perspective of related scientific works. Technologies ranging from kW to hundreds of MW scale are at various levels of development. Some are still in the stage of concepts, whilst others are in the experimental and pilot operations, up to a few commercial installations. As a comprehensive technology review, this paper addresses the needs of both academics and industry practitioners.
    Type of Medium: Online Resource
    ISSN: 1996-1073
    URL: Article
    DOI: 10.3390/en15020647
    Language: English
    Publisher: MDPI AG
    Publication Date: 2022
    detail.hit.zdb_id: 2437446-5
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  • 8
    Online Resource
    Online Resource
    The layering of a mountain podzol can strongly affect the distribution of infiltrated water in the soil profile
    Walter de Gruyter GmbH ; 2018
    In:  Journal of Hydrology and Hydromechanics Vol. 66, No. 3 ( 2018-09-01), p. 348-356
    Details
    In: Journal of Hydrology and Hydromechanics, Walter de Gruyter GmbH, Vol. 66, No. 3 ( 2018-09-01), p. 348-356
    Abstract: The layering of the soil profile can influence the accumulation of infiltrated water and the way in which subsurface runoff is formed. This paper examines a mountain podzol characterized by clearly developed soil horizons. After these horizons had been identified, distinct soil layers were defined (the eluvial horizon, the spodic horizon (undifferentiated), and weathered bedrock). Saturated hydraulic conductivity (K s ), particle size distribution and bulk density were measured in these layers. A visualization of the distribution of infiltrated water in the podzolic profile was performed using a dye tracer experiment. The accumulation of dyed water and a distinct lateral flow were detected in the eluvial layer. Only limited entry of water into the spodic layer was observed. These effects were caused by changes in soil hydraulic properties (SHP) among the investigated layers. For the spodic horizons, the measured K s value (crucial SHP) was significantly lower than the Ks values for the other tested horizons. The probable reason for the lower K s was an accumulation of fine particles and various substances in the spodic horizons, and corresponding changes in the porous system. The observed effects of layering indicate that water can be accumulated and subsurface runoff can be formed over the spodic layer during intensive rain or snow melting.
    Type of Medium: Online Resource
    ISSN: 0042-790X
    URL: Article
    DOI: 10.2478/johh-2018-0014
    Language: English
    Publisher: Walter de Gruyter GmbH
    Publication Date: 2018
    detail.hit.zdb_id: 2503779-1
    SSG: 14
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