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Optimalization of experimental method for study on penetration of humic acids into leaves.
Smilková, Marcela ; Pekař, Miloslav (referee) ; Sedláček, Petr (advisor)
This bachelor’s thesis is focused on the study of penetration of humic substances trough the plant cuticle. The main objective of the thesis aimed at a literature search on foliar fertilization and transport of substances in the plant leaves. According to the literature search, experimental technique was suggested and tested in order to study penetration of humic substances through the leaf cuticle. The method consists of observation of diffusion transport of humic acids between two inert agarose gels separated by the plant cuticle. Cuticles were prepared by the means of three different isolation procedures.
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MSCR test in dynamic shear rheometer
Střasáková, Monika ; Coufalík, Pavel (referee) ; Kudrna, Jan (advisor)
The laboratory properties of bituminous binders in relation to permanent deformation are described in this bachelor‘s thesis. The principle and procedure of MSCR test will be explained in the theoretical part. The principle of empirical tests (needle penetration, elastic recovery and softening point) will be also described. The properties of four bituminous binders will be evaluated in practical part. The comparison of binders will be performed based on test results.
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Penetration of Commercial Filter Materials in Detailed Study
Ondráček, Jakub ; Zíková, Naděžda ; Ždímal, Vladimír
Testing of various filter materials proved the functionality, good precision and reproducibility of a home-made filter tester. The measurements of penetration for standard commercial filter materials might be useful for many scientists and other users working with these materials. The comparison of penetration for different types of filtration materials showed wide variety of penetration curves, MPPS and the maximum penetration. This study also confirmed our initial doubts about the standard filter efficiency testing method, regarding the used testing material, setting of MPPS and measuring only the total penetration of a polydisperse aerosol. Therefore, such a study could serve also as a basis for improvements in the filter efficiency standard method, which seems to give insufficient and in some perspectives limited or even misleading information.
Fulltext: content.csg -  PDF
Plný tet: SKMBT_C22012102615351 - PDF
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Global FTTx market
Beníšek, Jan ; Šalamon, Tomáš (advisor) ; Pešek, Martin (referee)
This master thesis focuses on the worldwide optical connection situation.Within the respective regions of Asia-Pacific,the Americas and Europe, it identifies the main countries and focuses on the situation and share of FTTx subscribers in them.It tries to answer the question of what technologies are represented the most on particular markets. Within each country,two service providers are chosen and their offer analyzed.For an overview,the price offer for an Internet connection with the highest transmission rate and the price for VoIP service are provided. The analytical part uses the obtained data from individual countries and regions for a price comparison and market forecast.The price comparison deals with the price level of a standard connection in relation to GDP per capita in PPS.This comparison enables the discovery of how expensive the Internet connection via FTTx is in a particular country.Furthermore, the analytical part, in relevant countries, focuses on the calculation of the ratio of costs for the yearly use of a FTTx subscription in relation to the disposable family income. The highest ratio-8.37%-was recorded in India. The thesis also includes a market forecast in the horizon of the end of 2009 and 2010 for the most important countries.For each country,the main growth factor is identified and subsequently the development for the entire year 2009 and 2010 is forecast.The worldwide forecast is 61.37 million (as of the end of 2009) and 72.67 million (as of the end of 2010) FTTx subscriptions.The contribution of this master thesis is the analysis of in what state of development the market of Internet optical connection is in the most important countries, with price comparisons and a market forecast constituting further contributions.
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