Regionální prvky v díle Egona Hostovského

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Underground wireless transmission

katedra: MTI; rozsah: 88s. (14197 znaků)Bakalářská práce se zabývá tématikou bezdrátového přenosu dat jako alternativou běţného pevného přenosu dat. V první části práce je uveden výčet nejběţnějších bezdrátových technologií, jejich stručná charakteristika a následné porovnání. Druhá část práce popisuje zp?soby a výsledky konkrétních měření v podzemí a pro srovnání i na povrchu. Na základě konečného zhodnocení jednotlivých výsledk? je vybrána taková bezdrátová technologie přenosu dat, která svými funkčními parametry vyhovuje nejlépe danému prostředí.The subject matter of this bachelor´s discourse is the wireless data transmission being an option (alternative) to the current solid data transmission. First half of this discourse includes number of the most common wireless technologies, with the brief description (characteristics) and their subsequent comparison. Second part describes the methods and results of the individual concrete measurements done underground comparing the measurements made above ground. Based on the final data evaluation of the individual results there is chosen such a wireless technology of data transmission having the functional parameters complying fully with the existing conditions

Remote Control of Device for Door Opening via Bluetooth

katedra radioelektronik

Streamlining production technology for specified pinion housing

Cílem práce je navržení nové technologie výroby zadaného pouzdra pastorku a následné porovnání s technologií stávající. V úvodu práce jsou popsány základní vlastnosti pouzder a použití dílce pouzdra pastorku, vyráběného společností Wikov MGI. V další části práce je pozornost věnována současné technologii výroby a její zhodnocení. Praktická část obsahuje volbu stroje, upínacího mechanismu a nástrojů nezbytných pro zhotovení součásti. V poslední kapitole práce jsou srovnány tři varianty technologického postupu, z hlediska časové náročnosti operací a hlediska ekonomické výhodnosti pro společnost Wikov MGI.The aim of the thesis is to propose a new technology for the production of the specified pinion case and to compare it with the existing technology. At the beginning of the thesis are described the basic characteristics of the bushings and the use of the worm housing part produced by Wikov MGI. In the next part, attention is paid to the current technology of production and its evaluation. The practical part includes the choice of the machine, the clamping mechanism and the tools necessary for making the part. The last chapter of the thesis compares three variants of the technological process, in terms of time-consuming operations and economical advantage for Wikov MGI.

The racionalization of machining of gearboxes

Obsahem práce je navržení technologie obrábění s použitím obráběcích center, využívající pět řízených os. Změna plynoucí ze zavedení této technologie je zkoumána na skříni jednostupňové převodovky, která je součástí výrobků vyráběných ve společnosti. V první části práce jsou rozebrány obecné vlastnosti převodovek a jejich skříní, dále pak postup současného procesu obrábění představitele. V praktické části práce je navrženo vhodné nástrojové vybavení a přípravkové vybavení, potřebné pro zhotovení součásti jako celku. Dále jsou analyzovány a doplněny časové studie, poskytnuté výrobci obráběcích center a na základě těchto výsledů jsou určeny celkové časy obrábění a z nich odvíjející se celkové operační náklady pro zhotovení jednoho kusu, vstupující do ekonomického zhodnocení. V části technicko-ekonomického zhodnocení je vypočtena návratnost počáteční investice, zahrnující náklady na pořízení obráběcího centra a nástrojového vybavení. Dále je zhodnocen celkový přínos nové technologie vzhledem k potřebám ve společnosti, vyrábějící zkoumaný obrobek.Content of the thesis is the proposal of new technology using machining centres, including five controlled axis. Benefit of implementation the new nechnology is investigated at machining example, which is the gear housing of a single stage gearbox, manufactured in the company. In the first part of the thesis, the general properties of gearboxes and their housings are analyzed, as well as the procedure of the current proces of the machining representative. In practical part of the thesis is proposed necessary tool equipment and jig equipment, needed for machining of the part. After that are analyzed and filled in time studies, provided by manufacturers of machining centres. On the bases of these studies, were calculated operating times and operating costs per one piece of the housing. In the part of technical and economical evaluation is calculated the return of initial investment, including costs for byuing new machining cente and cutting tools equipment. Finaly are evaluated the overal benefits of the new technology, given the needs of the company.

Legal regime of municipal waste management

Právní režim nakládání s komunálním odpadem V úvodu této práce o právním režimu nakládání s komunálním odpadem seznamuji pro lepší představu čtenáře s věcnými aspekty komunálního odpadu, zejména jeho produkovaném množství a způsoby, kterými se s ním nakládá, včetně limitů, kterých se má u jednotlivých způsobů nakládání s komunálním odpadem dosáhnout. Tomu, jakým způsobem by se dalo dosažení limitů zajistit, se věnuji v kapitole o nakládání s vybranými složkami komunálního odpadu. Porovnávám zejména odpady z obalů, s nimiž nakládáme vzorově, a biologicky rozložitelný komunální odpad, množstevně významnou složku komunálního odpadu, kde to tak dobře nejde. I proto, že o odpady z plastů a dalších obalů je mnohem větší zájem, jelikož se dají znovu použít ve výrobním procesu. Další část práce je zaměřena na právní úpravu odpadového hospodářství. Začíná unijní úpravou, výchozí pro členské státy. Česká právní úprava je s unijní v souladu, zákon o odpadech byl i tak připravován. Rozpor najdeme u pojmu komunální odpad v zákoně o odpadech. Zatímco Katalog odpadů má komunální odpad definován stejně jako je tomu v unijní úpravě, zákonná definice je trošku odlišná. Právě pojmům odpad a komunální odpad se věnuje další kapitola. Čtvrtá kapitola je věnována obci jako původci komunálního odpadu. Již předešlé zákony...Legal regime of municipal waste management This work about legal regime of municipal waste management in the Czech Republic begins with a chapter about some aspects of the municipal waste, especially the quantity in which the CR and the EU produces municipal waste, ways in which municipal waste is disposed and percentage limits which should be achieved in municipal waste management. Next part is started with a short flashback into the history of legislation of waste (and municipal waste as well) in the Czech Republic in the last 20 years - follows independence of the Czech Republic. Conception of municipal waste did not get throught a big changes during that decades, so didn't the system of municipal waste management. In the recent years there have been serious discussions about the new "waste" law and after the new Goverment was elected they started again, also we will see if the new law will see the lights of the world. The work then gives an explanation of basic terms - waste and municipal waste - in the Czech law and also in the European law. Because of being the member of European Union, the Czech Republic has quite similar definitions of these terms - new laws were prepared to be conformable with European law. Also the waste hierarchy, important for the approach to waste management, is the...Department of Environmental LawKatedra práva životního prostředíFaculty of LawPrávnická fakult

Warrs Wage Wars – vhled do lexikonu českých hráčů počítačových her využívajících adaptovaná anglická substantiva

Computer game players often express the need to convert the existing English expression occurring in the game to their native language system. The aim of this article is to explore the way the original English nouns are converted to Czech grammatical system. In the theoretical part, the position of English language in the world, the philosophy of the grammatical-lexical adaptation in general and the game itself are suggested. Furthermore, the principle of the existing computer game slang of the Czech players is introduced. Subsequently, in the research part, the nouns are analysed in regard to their word-forming process, semantic motivation and wider situational context. The analysed nouns are provided with a typical example of their common usage in the game. The research outcomes are verified within the analysis of the research part

Dark side of the fence: ornamental plants as a source of wild-growing flora in the Czech Republic

Ornamental plants constitute an important source of alien, and potentially invasive species, but also include a substantial part of native flora and consist of taxa that occur both in the wild and in cultivation; yet garden floras are largely ignored in ecological studies.We studied ornamental plants in the Czech Republic in order to provide detailed information, based on field sampling, on the diversity of taxa grown in cultivation in private gardens. Sampling was done in accessible public areas, private gardens and private areas in villages, town- and city neighbourhoods, garden allotments, cemeteries, areas of dispersed farmhouse settlements not accessible to the public, and in new urban sprawl. The data can be used to estimate the propagule pressure of individual taxa, measured in terms of the frequency with which they are planted in the gardens. To make the data comparable across sites, we adopted a two-level approach that resulted in producing a detailed list (including all the taxa recorded) and an aggregated list (merging closely related and similar taxa, which was necessary in order to assess the frequency of planting across sites). Each species on the detailed list was assigned an origin, status, life history and cultivation requirements. Comparing the field records with national checklists of both native and alien vascular plants we quantified particular components of the ornamental flora. The floristic inventories for 174 sites yielded 1842 taxa on the detailed list, consisting of 1642 species (standard binomials), 9 cultivars assigned to genera, 147 hybrids and hybridogenous taxa, and 44 taxa identified at higher than species level. Of these taxa 1417 (76.9%) were alien and 420 (22.8%) native. The ornamental flora consisted of not-escaping aliens, escaping aliens and cultivated natives. Of the recorded taxa, 841 (45.6%) occur both in cultivation and the wild. The aggregated list comprised 1514 taxa and resulted from merging 533 taxa from the detailed list into 205 taxa. Most alien ornamentals are native to Asia and Americas. The proportion of escaped and not-escaping aliens significantly differed from wild aliens in the spontaneous flora with underrepresentation of escaped, which originated from Australia, Africa and the Mediterranean area. Taxa from Africa and anecophytes were overrepresented and those from Australia, the Mediterranean and other parts of Europe underrepresented among not escaping aliens. The assessment of planting frequency revealed that 270 taxa were found at more than 25% of the sites, while 584 (40%) occurred at only one or two sites.Winter annuals and shrubs are most represented among the commonly planted aliens; the only native species with comparably high planting frequencies among the aliens, are Vinca minor, Hedera helix and Aquilegia vulgaris. Related to the invasion potential of ornamental garden flora we analysed the recorded taxa with respect to the transient/persistent character of their occurrence. The core (persistent) part of the flora comprised 599 taxa (32% of the total number of taxa) and the transient 240 (13%) taxa. The “grey zone” between the two included 1003 taxa (55%). The results reported here provide quantitative insights into the role of horticulture as a major pathway of plant invasions

Impacts of native and alien plant dominants at different spatial scales

Plant invasion science has made a substantial progress in documenting the impacts of aliens, but comparisons with the impacts of native dominants are still rare. Further, the impacts on larger spatial scales remain poorly understood. We recorded the impacts of 10 native and nine invasive dominant plants in the Czech Republic on species richness and Shannon diversity by comparing communities with high vs. low cover of the dominant species. To estimate the impacts at the (i) population level and (ii) between-population level, we compared the Jaccard dissimilarity, nestedness and turnover of high- and low-dominance plots. Further, we calculated the Jaccard dissimilarity, nestedness and turnover between the high- and low-dominance plots within each population to express the impacts on species composition. We tested whether (i) native and invasive dominants affect the population- and between population levels of diversity by making the vegetation more homogenous; (ii) whether these effects differ between the native and alien dominants; and (iii) whether the impacts at different spatial levels are related. At the population level, high-dominance plots (with both native and alien dominants) showed higher nestedness and lower turnover compared to the low-dominance plots. Further, all plots with native dominants, both with high- and low dominance, showed higher similarity but lower nestedness than plots with alien dominants. Most importantly, high-dominance plots with native dominants were more similar to each other but showed marginally significantly lower nestedness compared to high-dominance plots with alien dominants. At the between-population level, high-dominance plots with native dominants showed a marginally significantly lower turnover compared to high-dominance plots with alien dominants. The differences in Jaccard dissimilarity, nestedness and turnover between the low- and high-dominance plots at the population level showed strong positive relations to low- and high-dominance differences at the between-populations level. Further, compositional impacts, expressed as the dissimilarity between high- vs. low-dominance plots, positively related to the plot-level impacts on Shannon diversity. Our results show that (i) both native and invasive dominants tend to reduce the diversity over larger areas and that the effect of native dominants may be even stronger, and (ii) the effects on plot-level richness and diversity cannot be easily extrapolated to larger scales but the impacts at the population- and between-populations levels are positively related