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1782. Finále osudu československého menového zlata :
- Creator:
- Michálek, Slavomír,
- Type:
- text and články
- Subject:
- Dějiny Česka a Slovenska, vztahy Československo-USA, zlato měnové, Československo 1969-1989, zahraniční politika, mezinárodní vztahy, USA, and světové dějiny od r. 1945 do současnosti
- Language:
- Slovak
- Rights:
- unknown
1783. Finančná správa v španielskom miestokráľovstve Peru /
- Creator:
- Puchovský, Ján,
- Type:
- text and studie
- Subject:
- Finance, Španělé, správa finanční, daně, Peru, světové dějiny novověku (1492-1918), and finančnictví
- Language:
- Slovak
- Rights:
- unknown
1784. Finding behavioral parameterization for a 1-D water balance model by multi-criteria evaluation
- Creator:
- Casper, Markus C., Mohajerani, Hadis , Hassler, Sibylle , Herdel, Tobias , and Blume, Theresa
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- forest evapotranspiration, water balance simulation, soil parameterization, and behavioral model
- Language:
- Slovak
- Description:
- Evapotranspiration is often estimated by numerical simulation. However, to produce accurate simulations, these models usually require on-site measurements for parameterization or calibration. We have to make sure that the model realistically reproduces both, the temporal patterns of soil moisture and evapotranspiration. In this study, we combine three sources of information: (i) measurements of sap velocities; (ii) soil moisture; and (iii) expert knowledge on local runoff generation and water balance to define constraints for a “behavioral” forest stand water balance model. Aiming for a behavioral model, we adjusted soil moisture at saturation, bulk resistance parameters and the parameters of the water retention curve (WRC). We found that the shape of the WRC influences substantially the behavior of the simulation model. Here, only one model realization could be referred to as “behavioral”. All other realizations failed for a least one of our evaluation criteria: Not only transpiration and soil moisture are simulated consistently with our observations, but also total water balance and runoff generation processes. The introduction of a multi-criteria evaluation scheme for the detection of unrealistic outputs made it possible to identify a well performing parameter set. Our findings indicate that measurement of different fluxes and state variables instead of just one and expert knowledge concerning runoff generation facilitate the parameterization of a hydrological model.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
1785. Fitchův paradox poznatelnosti a rozvětvená teorie typů
- Creator:
- Raclavský, Jiří
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- Fitch’s knowability paradox, ramified theory of types, typing knowledge, Vicious Circle Principle, Fitchův paradox paradigmatu, rozvětvená teorie typů, znalost psaní, and princip Vicious Circle
- Language:
- Slovak
- Description:
- It is already known that Fitch’s knowability paradox can be solved by typing knowledge within ramified theory of types. One of the aims of this paper is to provide a greater defence of the approach against recently raised criticism. My second goal is to make a sufficient support for an assumption which is needed for this particular application of typing knowledge but which is not inherent to ramified theory of types as such., Je již známo, že Fitchův paradox paradigmatu může být vyřešen typizací znalostí v rámci rozvětvené teorie typů. Jedním z cílů této práce je poskytnout větší ochranu přístupu proti nedávno vznesené kritice. Mým druhým cílem je poskytnout dostatečnou podporu předpokladu, který je pro tuto konkrétní aplikaci typického poznání potřebný, ale který není spojen s rozvětvenou teorií typů jako takovou., and Jiří Raclavský
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
1786. Flattening the curve of moral imagination
- Creator:
- Beran, Ondřej
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- COVID-19 crisis, economic concerns, moral dilemmas, moral luck, and remorse
- Language:
- Slovak
- Description:
- In this paper, I discuss some moral dilemmas related to the COVID-19 crisis and their framing (mainly) in the public debate. The key assumption to engage with is this: that we need primarily to take into account the long-term economic consequences of the proposed safety measures of social distancing. I argue that the long-term economic concerns, though legitimate, cannot suspend the irreducibly moral nature of the demand placed on the decision-makers by those who are vulnerable, at risk, or in need of medical treatment. This is discussed in relation to two points: 1) The political endeavour and rhetoric of “flattening the curve” is not necessarily short-sighted but expresses the acknowledgment of a legitimate expectation placed on elected representatives. 2) Not being able to prevent harm (to those who are in real need, or otherwise vulnerable) may lead to genuine moral distress, even if it is not clear whether it was in one’s, or anybody’s, powers to prevent the situation, or even if the best possible outcome has been otherwise reached. The second point may be understood as a part of the broader context of the established criticisms of utilitarianism.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
1787. Flood regime of rivers in the Danube River basin
- Creator:
- Pekárová, Pavla
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Language:
- Slovak
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
1788. Floods effects on rivers morphological changes application to the Medjerda River in Tunisia
- Creator:
- Gharbi, Mohamed, Soualmia, Amel, Dartus, Denis, and Masbernat, Lucien
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- floods, hydrodynamics, sediment transport, modelling, and river morphology
- Language:
- Slovak
- Description:
- In Tunisia especially in the Medjerda watershed the recurring of floods becoming more remarkable. In order to limit this risk, several studies were performed to examine the Medjerda hydrodynamic. The analysis of results showed that the recurrences of floods at the Medjerda watershed is strongly related to the sediment transport phenomena. Initially, a one dimensional modelling was conducted in order to determine the sediment transport rate, and to visualize the river morphological changes during major floods. In continuity of this work, we will consider a two-dimensional model for predicting the amounts of materials transported by the Medjerda River. The goal is to visualize the Medjerda behaviour during extreme events and morphological changes occurred following the passage of the spectacular flood of January 2003. As a conclusion for this study, a comparative analysis was performed between 1D and 2D models results. The objective of these comparisons is to visualize the benefits and limitations of tested models. The analysis of the results demonstrate that 2D model is able to calculate the flow variation, sediment transport rates, and river morphological changes during extreme events for complicated natural domains with high accuracy comparing with 1D Model.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
1789. Flow behaviour and local concentration of coarse particles-water mixture in inclined pipes
- Creator:
- Vlasák, Pavel, Chára, Zdeněk, and Konfršt, Jiří
- Type:
- article, model:article, and TEXT
- Subject:
- coarse particle mixture, concentration distribution, effect of pipe inclination, gamma-ray radiometry, hydraulic conveying;, and mixture flow behaviour
- Language:
- Slovak
- Description:
- Narrow particle size distribution basalt pebbles of mean particle size 11.5 mm conveyed by water in the pipe sections of different inclination were investigated on an experimental pipe loop, consisting of smooth stainless steel pipes of inner diameter D = 100 mm. Mixture flow-behaviour and particles motion along the pipe invert were studied in a pipe viewing section, the concentration distribution in pipe cross-section was studied with the application of a gamma-ray densitometer. The study refers to the effect of mixture velocity, overall concentration, and angle of pipe inclination on chord-averaged concentration profiles and local concentration maps, and flow behaviour of the coarse particle-water mixtures. The study revealed that the coarse particle-water mixtures in the inclined pipe sections were significantly stratified, the solid particles moved principally close to the pipe invert, and for higher and moderate flow velocities particle saltation becomes the dominant mode of particle conveying.
- Rights:
- http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
1790. Flow characteristics at trapezoidal broad-crested side weir
- Creator:
- Říha, Jaromír and Zachoval, Zbyněk
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- broad-crested side weir, experimental research, flow characteristics, and hydraulics
- Language:
- Slovak
- Description:
- Broad-crested side weirs have been the subject of numerous hydraulic studies; however, the flow field at the weir crest and in front of the weir in the approach channel still has not been fully described. Also, the discharge coefficient of broad–crested side weirs, whether slightly inclined towards the stream or lateral, still has yet to be clearly determined. Experimental research was carried out to describe the flow characteristics at low Froude numbers in the approach flow channel for various combinations of in- and overflow discharges. Three side weir types with different oblique angles were studied. Their flow characteristics and discharge coefficients were analyzed and assessed based on the results obtained from extensive measurements performed on a hydraulic model. The empirical relation between the angle of side weir obliqueness, Froude numbers in the up- and downstream channels, and the coefficient of obliqueness was derived.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public