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Formal Models for Data Languages
Vašák, Jan ; Havlena, Vojtěch (referee) ; Lengál, Ondřej (advisor)
Datová slova jsou běžně používaná pro formální práci se slovy nad nekonečnými abecedami. V praxi může nekonečná abeceda modelovat skutečně nekonečnou množinu, např. celá čísla nebo množinu řeťezců, nebo velkou konečnou množinu, jako např. znaky sady Unicode. Tato práce se nejprve věnuje teoretickým vlastnostem registrově množinových automatů. Registrově množinové automaty jsou modelem nad datovými slovy, který lze použít pro determinizaci velké třídy registrových automatů (toto např. umožňuje deterministickou automatovou reprezentaci třídy regulárních výrazů se zpětnými odkazy). Dále jsme rozšířili streaming data string převaděče, model určený pro modelování třídy programů pro zpracování lineárních seznamů, o množinové registry. Toto rozšíření umožňuje např. modelovat program, který odstraní duplicitní hodnoty z lineárního seznamu, což není možné modelovat základními streaming data string převaděči. Ukážeme, že problém funkční ekvivalence je pro toto rozšíření rozhodnutelný. Také byl naimplementován prototyp regex matcheru založený na registrově množinových automatech. Ukážeme, že prototyp si vede dobře pod ReDoS (regular expression denial of service) útoky, které jsou efektivní vůči regex matcherům používaným v praxi.
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Variant systems growing technology of Winter rapeseed (Brassica napus, L)
Bodnárik, Jakub ; Vašák, Jan (advisor) ; Honsová, Hana (referee)
Winter rape (Brassica napus, L) is annual or biennial crop which is growing for seeds containing rape oil. This is the third world´s most important oil, which is growing. In geographically smaller part of Czech Republic we talk about winter rape as a the most important and most grown oilseed. Winter rape is represented up to 85% harvesting area of all oilseeds which is growing in Czech Republic.
When the exact parcel experiment with four replications, which was conducted in 2014/2015 season at the research station in FAPPZ in Č. Újezd, Prague - West district were monitored production and biological indicators of winter rape in autumn and at the start of spring vegetation. Differences between attempts were preparing the soil, fertilizer under the heel, the method of seeding, fertilization during growth. A comparison of the results of the fall collections of rape, it is clear that most grown plants were grown technologies, no. 2, it´s before sowing plowed land, sowing the seed drill Farmet Falcon 6. During the spring inventory of crops grown technologies, no. 2 - 4 showed comparable biological indicators, the other two stands slightly lagged. After threshing technology as the highest yielding seed technology emerged no. 3 (Farmet intensity). Conclusion of the experiment: there is no need to plow before planting, it is important to choose an appropriate method for establishing a modern stand a significant effect on seed yield should fall fertilization N.
Attempting to penetrometric soil resistance in oilseed rape crops. In season 2015/2016 was the site of the 'Triangle Left ", which manages the company AGROCOM HRUŠOVANY spol. s r.o. divided into two parts. One part was plowed before sowing, the second part being plough before sowing. Next on two parts of the land made the autumn and spring inventorying oilseed rape crop. The findings of the experiment, when the autumn sampling plants are biological indicators of rape on plough section of higher parameters. Spring inventories fell in reverse, higher parameters showed plants on a plowed section. Measurement of penetrometric soil resistivity confirmed that the land was plowed soil of lower resistance.
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Possiblities of winter barley cultivation in CZ
Turnovec, Tomáš ; Křováček, Jan (advisor) ; Vašák, Jan (referee)
Winter barely is after winter wheat and spring barley third most grown cereal in the Czech Republic, grain yield rank id in 2nd place after winter wheat. In the Czech Republic winter barley is mainly used for feed purposes. The forage quality is the varieties with larger grain at the level of feed spring barley varieties. In the winter barley crop rotation allows favorable distribution of labor peaks in both drilling and especially in the harvest, because of the early harvest is best previous crop for rape. Economic benefit earliness of harvest of winter barley is also reducing the cost of holding stocks from the previous harvest, because it provides the first harvest of grain intended for production of animal feed.
The theme of this Bachelor thesis is to verify the suitability of cultivation of hybrid winter barley in the Czech Republic. The aim was to confirm or refute the claim that hybrid barley gives a higher yield in comparison with the line varieties.
In 2014 was founded 15 reference experiments in the Czech Republic. The selected sites were located at different altitudes and different soil conditions. Any attempt from 15 locations was based on an even plot with a total size of at least 4 hectares. 4 were sown winter barley varieties - two hybrid varieties, two line varietes - each variety over one hectare. Individual varieties were clearly separated aisle at least one meter, in order to subsequently ensure accurate income assessment.
As a hybrid winter barley varieties were sown varieties Galation and Wootan. As a comparative linear varieties of winter barley varieties were used designated as L1 and L2.
Results:
Location height above sea level soil type yield at 14% moisture (t/ha)
Wootan Galation Linie1 Linie2
Loštice (Šupmerk) 305 loamy 12,02 11,32 12,28 11,46
Kravaře (Česká Lípa) 300 loamy clay 11,76 11,08 10,50 9,75
Chrášťany (Rakovník) 405 loamy clay 11,57 9,59 10,06 9,71
Hostovice (Pardubice) 250 loamy clay 10,43 10,47 9,13 9,38
Krásné Údolí (K. Vary) 650 loamy sand 9,96 9,52 9,29 8,57
Nová Ves p. Pleší (Příb.) 395 loamy sand 9,87 10,01 7,63 7,39
Zdislavice (Benešov) 485 sandy loam 9,39 10,83 9,11 10,97
Hrotovice (Třebíč) 430 loamy sand 9,06 9,70 8,86 8,11
Jinín (Strakonice) 430 loamy clay 8,99 9,48 7,88 6,77
Záhoří (Benešov) 550 loamy clay 8,49 7,89 7,68 7,75
Trhové Sviny (ČB) 458 sandy loam 7,90 7,73 7,38 7,55
Vstiš (Plzeň jih) 370 loamy sand 7,37 7,16 6,14 5,83
Zbýšov (Kutná Hora) 390 loamy sand 6,75 7,45 6,30 5,48
Břeclav (Břeclav) 158 loamy sand 5,84 5,34 5,96 4,92
Hořice (Jičín) 410 loamy sand 5,83 5,95 4,73 4,57
The highest yield of hybrid winter barley was in the location Loštice with an altitude of 305 metres above sea level and loamy soil. Hybrid varieties are achieved the yield: Wootan - 12.02 t.ha-1, Galation - 11.32 t.ha -1. Along with three other locations, were even here the yield of hybrid varieties overcome by lines, Line 1 achieved the yield 12.28 t.ha-1 and Line 2 surpassed its yield of 11.46 t.ha-1 only hybrid variety Galation. The second highest yield was achieved in the location Kravaře with an altitude of 300 metres above sea level and loamy clay soil. Hybrid varieties in this area witj average yield 11,42 t.ha-1, surpassed the line varieties about 1,295 t.ha-1.
Although the vegetation year 2014/2015 was not in terms of climatic conditions ideal because of the widespread drought that has manifested itself in early 2015, hybrid winter barley amounted to an average 0.92 t.ha-1 a higher yield compared to a line varieties. The main reason, that hybrids are also better in stress conditions in the form of droughts, is their bigger and stronger construction and extensive root system that can draw moisture and nutrients from deeper soil horizon more efficiently than conventional line varieties. With regard to the quality, hybrid varieties in this respect are comparable to the lines.
In our experiments high yields was achieved. Yields exceeding more than 11 and somewhere even 12 tons per hectare can be considered as excellent.
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