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3222. Estetika a etika v horizonte axiologickeho myslenia Jiřiny Popelovej /
- Creator:
- Sošková, Jana,
- Type:
- text and studie
- Subject:
- Filozofie, Popelová, Jiřina,, filozofové čeští, myšlení filozofické, estetika, etika, axiologie, Československo 1945-1992, and filozofie, filozofové
- Language:
- Slovak
- Rights:
- unknown
3223. Estetika Františka Palackého počas pôsobenia na Slovensku /
- Creator:
- Babiak, Michal,
- Type:
- text and studie
- Subject:
- Dějiny civilizace. Kulturní dějiny, Palacký, František,, historici čeští, vztahy česko-slovenské, estetika, české země 1792-1847, and filozofie, filozofové
- Language:
- Slovak
- Rights:
- unknown
3224. Estetika Josefa Durdíka v reflexii slovenských mysliteľov /
- Creator:
- Sošková, Jana,
- Subject:
- Durdík, Josef,, Vlček, Jaroslav,, Banšell, Koloman,, Škultéty, Jozef,, Vajanský, Svetozár Hurban,, Milkin, Tichomír,, filozofové slovenští, filozofové čeští, vztahy vědecké, estetika, vztahy česko-slovenské, české země 1848-1918, Slovensko 1848-1918, Československo 1918-1945, and filozofie, filozofové
- Language:
- Slovak
- Description:
- Josef Durdík's Aesthetics in the Reflection of Slovak Thinkers.
- Rights:
- unknown
3225. Estimating bed shear from velocity profile
- Creator:
- Ramakrishna Rao, Achanta and Kumar, Bimlesh
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- bed shear, boundary effects, logarithmic profile, parabolic laws, velocity profile, trenie na dne koryta, okrajové efekty, logaritmický profil, parabolické rozdelenie, and profil rýchlosti
- Language:
- Slovak
- Description:
- A graphical method of estimating bed shear from measured velocity profiles is presented as an alternative to logarithmic law approach. In the present approach the entire velocity profile is considered as per binary law of velocity distribution i.e., logarithmic law in the wall region and parabolic law in the outer region. The validity of this method has been demonstrated for a typical velocity profile. An analysis has been also made in case of an erroneous measurement of bed level. and Práca obsahuje grafickú metódu určenia charakteristík trenia na dne koryta z meraných profilov rýchlosti ako alternatívu k používanému prístupu vychádzajúcemu z logaritmického zákona rozdelenia rýchlostí prúdenia. Predložený prístup charakterizuje profil rýchlosti ako binárny, t.j. zložený z logaritmického rozdelenia v oblasti steny a z parabolického rozdelenia mimo túto oblasť. Vhodnosť tohto prístupu bola demonštrovaná pre typický rýchlostný profil. Bola vykonaná analýza aj pre nepresné meranie úrovne dna koryta.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
3226. Estimating flash flood peak discharge in Gidra and Parná basin: case study for the 7-8 june 2011 flood
- Creator:
- Pekárová, Pavla, Svoboda, Aleš, Miklánek, Pavol, Škoda, Peter, Halmová, Dana, and Pekár, Ján
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- flash floods, Gidra and Parná Rivers, post-flood event analysis, runoff modeling, bleskové povodne, rieky Gidra a Parná, analýza povodní, and modelovanie odtoku
- Language:
- Slovak
- Description:
- We analyzed the runoff and its temporal distribution during the catastrophic flood events on river Gidra (32.9 km2 ) and Parná (37.86 km2 ) of the 7th June 2011. The catchments are located in the Small Carpathian Mountains, western Slovakia. Direct measurements and evaluation of the peak discharge values after such extreme events are emphasized in the paper including exceedance probabilities of peak flows and of their causal flash rainfall events. In the second part of the paper, plausible modeling mode is presented, using the NLC (Non Linear Cascade) rainfall-runoff model. Several hypothetical extreme flood events were simulated by the NLC model for both rivers. Also the flood runoff volumes are evaluated as basic information on the natural or artificial catchment storage. and Predložený príspevok analyzuje tvorbu a priebeh odtoku počas katastrofickej povodňovej situácie na Gidre (32,9 km2 ) a na Parnej (37,86 km2 ) dňa 7. 6. 2011. Povodia týchto tokov sa nachádzajú v Malých Karpatoch na západnom Slovensku. V príspevku sa kladie dôraz na priame zameranie a vyhodnotenie kulminačných prietokov po výskyte takýchto povodní. Diskutujú sa problémy vyjadrenia pravdepodobnosti prekročenia kulminačných prietokov a dažďov, ktoré ich spôsobili. V druhej časti príspevku je prezentovaný možný spôsob modelovania povodne jednoduchým zrážkovo-odtokovým modelom NLC. Daným modelom NLC sú následne simulované prietoky Gidry v stanici Píla a Parná v stanici Horné Orešany za extrémnej hypotetickej zrážkovej udalosti. Hodnotené sú objemy odtoku počas povodní, ako základný údaj pre reálny odhad ich prirodzeného alebo umelého zadržania.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
3227. Estimating flow characteristics of different weir types and optimum dimensions of downstream receiving pool
- Creator:
- Emiroglu, M. Emin
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- weir, penetration depth, jet expansion, jet trajectory, bubble, air entrainment, aeration, priepad, hĺbka prieniku vzduchových bublín, rozšírenie prúdu, trajektória prúdu, bublina, and prevzdušňovanie
- Language:
- Slovak
- Description:
- This paper presents the results of a laboratory study on the flow characteristics of sharp-crested weirs, broad-crested weirs, and labyrinth weirs. The variation of the maximum bubble penetration depth for different weir types is investigated depending on overfall jet expansion, discharge, and drop height. Moreover, most efficient depth, length and width of the downstream receiving pool in an open channel system are studied by considering the penetration depth, overfall jet expansion, jet trajectory and the bubble zone. The results show that overfall jet expansion at the labyrinth weirs is significantly wider than the rectangular sharp-crested weirs and the trapezoidal sharp-crested weir. It is demonstrated that the labyrinth weirs have the lowest values of bubble penetration depth among the weirs tested. Furthermore, it is found that the rectangular and the trapezoidal weirs are observed to have the highest bubble penetration depth among all weirs. Consequently, empirical equations are obtained for predicting the maximum penetration depth of bubbles, trajectory of free overfall nappe, jet expansion of free overfall nappe, and the length of the bubble zone. and Príspevok prezentuje výsledky laboratórneho výskumu charakteristík prúdenia cez ostrohranné priepady, cez priepady so širokou hranou a cez labyrintové priepady. Bola študovaná variácia maximálnej hĺbky prieniku vzduchových bublín pre rozdielne typy priepadov v závislosti od rozšírenia prúdu, prietoku a výšky priepadu. Okrem toho bola analyzovaná efektívna hĺbka, šírka a dĺžka vývaru v systéme otvorených kanálov s uvážením rozšírenia prúdu, prietoku a výšky priepadu a oblasti so vzduchovými bublinami. Z výsledkov vyplýva, že rozšírenie prúdu pri labyrintových priepadoch je výrazne väčšie, ako pri pravouhlých a lichobežníkových ostrohranných priepadoch. Bolo ukázané, že labyrintové priepady majú najmenšiu hĺbku prieniku vzduchových bublín spomedzi všetkých testovaných priepadov. Zistilo sa však, že pravouhlé a lichobežníkové priepady majú najväčšie hĺbky prieniku vzduchových bublín spomedzi všetkých testovaných priepadov. Tieto výsledky výskumu viedli k empirickým rovniciam, umožňujúcim výpočet maximálnej hĺbky prieniku vzduchových bublín, trajektórií prepadového lúča, rozšírenia prúdu a dĺžky prevzdušnenej oblasti.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
3228. Estimating high levels exceedance probabilities by point process approach with applications to Northern Moravia precipitation and discharges series
- Creator:
- Jarušková, Daniela
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- precipitation and discharges series, high level exceedance probabilities, modeling tails of multivariate distribution, peaks over threshold method, modeling dependence structure, inverse arguments tail dependence function, srážkové a průtokové řady, pravděpodobnosti překročení vysoké úrovně, modelování chvostů vícerozměrného rozdělení, metoda špiček nad prahem, modelování struktury závislosti, and funkce závislosti chvostů daná v inverzních argumentech
- Language:
- Slovak
- Description:
- The paper by Jarušková and Hanek (2006) advocated application of the peaks over threshold method (POT method) for estimating the probability that a precipitation or discharges series exceeds a chosen high level. If daily precipitation amounts or average discharges are obtained at several stations one might be interested in estimating the probability that in the same time all variables of interest, e.g. precipitation amounts measured at several stations, exceed some chosen high levels. The paper explains how the method based on the point process approach may be used to get good estimates of such probabilities. Moreover, it presents some useful parametric models that were successfully applied by the author to some precipitation and discharges series of northern Moravia. and Článek navazuje na práci Jarušková, Hanek (2006), kde autoři doporučovali používání metody špiček nad prahem k odhadu pravděpodobností, s jakou srážková nebo průtoková řada překročí danou vysokou úroveň. V případě, že se denní srážková či průtoková řada měří ve více stanicích, může nás zajímat, s jakou pravděpodobností současně (to znamená ve stejný den) všechny studované řady, to je například srážkové řady měřené v několika stanicích, překročí nějaké předem stanovené vysoké úrovně. Článek vysvětluje, jak lze k odhadu takových pravděpodobností použít metodu založenou na bodovém procesu. Zároveň uvádí některé parametrické modely, které byly úspěšně použity autorkou článku pro odhady pravděpodobností překročení pro srážkové a průtokové řady na severní Moravě.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
3229. Estimating the rainfall erosivity factor from monthly precipitation data in the Madrid Region (Spain)
- Creator:
- Hernando, David and Romana, Manuel G.
- Format:
- bez média and svazek
- Type:
- model:article and TEXT
- Subject:
- rainfall erosivity, R-factor, Universal Soil Loss Equation, modified Fournier index, and soil erosion
- Language:
- Slovak
- Description:
- The need for continuous recording rain gauges makes it difficult to determine the rainfall erosivity factor (Rfactor) of the Universal Soil Loss Equation in regions without good spatial and temporal data coverage. In particular, the R-factor is only known at 16 rain gauge stations in the Madrid Region (Spain). The objectives of this study were to identify a readily available estimate of the R-factor for the Madrid Region and to evaluate the effect of rainfall record length on estimate precision and accuracy. Five estimators based on monthly precipitation were considered: total annual rainfall (P), Fournier index (F), modified Fournier index (MFI), precipitation concentration index (PCI) and a regression equation provided by the Spanish Nature Conservation Institute (RICONA). Regression results from 8 calibration stations showed that MFI was the best estimator in terms of coefficient of determination and root mean squared error, closely followed by P. Analysis of the effect of record length indicated that little improvement was obtained for MFI and P over 5- year intervals. Finally, validation in 8 additional stations supported that the equation R = 1.05·MFI computed for a record length of 5 years provided a simple, precise and accurate estimate of the R-factor in the Madrid Region.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public
3230. Estimation of hydrodynamic properties of a sandy-loam soil by two analysis methods of single-ring infiltration data
- Creator:
- Bagarello, Vincenzo, Caltabellotta, Gaetano, and Iovino, Massimo
- Format:
- počítač and online zdroj
- Type:
- model:article and TEXT
- Subject:
- soil hydrodynamic properties, beerkan infiltration run, data analysis methods, BEST methodology, and Wu1 method
- Language:
- Slovak
- Description:
- Beerkan infiltration runs could provide an incomplete description of infiltration with reference to either the near steady-state or the transient stages. In particular, the process could still be in the transient stage at the end of the run or some transient infiltration data might be loss. The Wu1 method and the BEST-steady algorithm can be applied to derive soil hydrodynamic parameters even under these circumstances. Therefore, a soil dataset could be developed using two different data analysis methods. The hypothesis that the Wu1 method and BEST-steady yield similar predictions of the soil parameters when they are applied to the same infiltration curve was tested in this investigation. For a sandy-loam soil, BEST-steady yielded higher saturated soil hydraulic conductivity, Ks, microscopic pore radius, λm, and depth of the wetting front at the end of the run, dwf, and lower macroscopic capillary length, λc, as compared with the Wu1 method. Two corresponding means differed by 1.2–1.4 times, depending on the variable, and the differences appeared overall from moderate to relatively appreciable, that is neither too high nor negligible in any circumstance, according to some literature suggestions. Two estimates of Ks were similar (difference by < 25%) when the gravity-driven vertical flow and the lateral capillary components represented the 71–89% of total infiltration. In conclusion, the two methods of data analysis do not generally yield the same predictions of soil hydrodynamic parameters when they are applied to the same infiltration curve. However, it seems possible to establish what are the conditions making the two methods similar.
- Rights:
- http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public