|
|
Axles of modern trucks
Vávra, Radek ; Vopařil, Jan (referee) ; Kučera, Pavel (advisor)
The main objective of this work is to present trends of modern axle trucks. There are presented the latest famous brands axle trucks. For each type has its axle design, driving properties and applicability. Furthermore, this paper describes the basic principles and structure axle’s differentials, brakes, gearboxes and wheels in the wheels.
|
|
|
Optimization of Vehicle Semi-Trailing Arm Suspension
Vávra, Radek ; Blaťák, Ondřej (referee) ; Hejtmánek, Petr (advisor)
This thesis is concerned with the design of Škoda 130 RS rear Semi-Trailing Arm Suspension and fixtures on the body. The main requirement of this thesis is to reduce weight of suspension. It is carried out the kinematic analysis and optimization of the kinematic. The construction part of this thesis provides a design of suspension based on the analysis of forces acting on the car wheel. Last part of the thesis includes of new rear suspension stress analysis.
|
|
|
The use of HPLC technique in the analysis of phenolic compounds in plant material of fruit trees
Adamcová, Anežka ; Šatínský, Dalibor (advisor) ; Sklenářová, Hana (referee) ; Vávra, Radek (referee)
Charles University, Faculty of Pharmacy in Hradec Králové Department of Analytical Chemistry Candidate: Mgr. Anežka Adamcová Supervisor: Prof. RNDr. Dalibor Šatínský, Ph.D. Title of the Dissertation Thesis: The use of HPLC technique in the analysis of phenolic compounds in plant material of fruit trees Although fruits are well studied and known for their high content of antioxidants and positive health benefits, the main aim of the presented dissertation thesis consists in the characterization of biological active compounds in individual parts of fruit tree material (leaves, bark, buds, flowers, and wood chips). The theoretical part is focused on fruit trees and the characterization of phenolic compounds. Their properties and the effects based on current scientific studies are shown. A large part of thesis is dealing with the chromatographic methods for the separation of phenolic substances including the current trends. The extraction process is also included. The practical part deals with the validation and development of screening HPLC-DAD method for the analysis of monitored phenolic compounds (phloridzin, phloretin, chlorogenic acid, quercitrin, rutin, arbutin, 1,5-dicafeoylquinic acid, and 3,5-dicafeoylquinic acid) in individual parts of fruit trees. The main objective of this thesis is to...
|
|
|
The use of HPLC technique in the analysis of phenolic compounds in plant material of fruit trees
Adamcová, Anežka ; Šatínský, Dalibor (advisor) ; Sklenářová, Hana (referee) ; Vávra, Radek (referee)
Charles University, Faculty of Pharmacy in Hradec Králové Department of Analytical Chemistry Candidate: Mgr. Anežka Adamcová Supervisor: Prof. RNDr. Dalibor Šatínský, Ph.D. Title of the Dissertation Thesis: The use of HPLC technique in the analysis of phenolic compounds in plant material of fruit trees Although fruits are well studied and known for their high content of antioxidants and positive health benefits, the main aim of the presented dissertation thesis consists in the characterization of biological active compounds in individual parts of fruit tree material (leaves, bark, buds, flowers, and wood chips). The theoretical part is focused on fruit trees and the characterization of phenolic compounds. Their properties and the effects based on current scientific studies are shown. A large part of thesis is dealing with the chromatographic methods for the separation of phenolic substances including the current trends. The extraction process is also included. The practical part deals with the validation and development of screening HPLC-DAD method for the analysis of monitored phenolic compounds (phloridzin, phloretin, chlorogenic acid, quercitrin, rutin, arbutin, 1,5-dicafeoylquinic acid, and 3,5-dicafeoylquinic acid) in individual parts of fruit trees. The main objective of this thesis is to...
|
|
|
The Development of new traffic vehicles in Prague public transport (1918-1939):realised and unrealised projects
Vávra, Radek ; Jakubec, Ivan (advisor) ; Štemberk, Jan (referee)
Main subject of the thesis is the history of public transport in Prague from 1918 to 1939 with focus on new means of public transport, with information divided into realized (buses and trolley buses) and unrealized projects (the underground). The thesis aims to broaden the current knowledge of inception and development of new means of transport and evaluate their measure of success. The introductory chapter summarizes the preceding development in public transport of Prague. The next is concerned with trams, the most common public transport vehicles of the era. The key part of the thesis consists of chapters focused on buses, trolley buses and proposed underground system. Those chapters deal with the circumstances of the conception of the projects, the causes that led to the projects being realized (or not), and subsequent development and success of those projects based among other sources on statistic data. Powered by TCPDF (www.tcpdf.org)
|
|
|
Minimization of risk of pesticide residues in fruit production: certified methodology
Kocourek, František ; Falta, Vladan ; Stará, Jitka ; Holý, Kamil ; Horská, Tereza ; Vávra, Radek
The publication is intended for fruit growers who are included in integrated fruit production systems. The information and the recommendations presented in the matarial can help them to minimize risk of residues of of of pesticides on non-target organisms, mainly natural enemies. In addition, the minimizing of pesticide impact on human health is considered. All recommendations are in the accordance with requirements of legislation which will be in force from 2014 for IPM and also for convention regimes of fruit protection. The spray scheduling is based on the knowledge of pesticide pre-harvest period coupled with the information about their side effects on non-target organisms. Environmental behaviour of pesticide residues from the application to the harvest is desribed for each active ingredient allowed in the Czech Republic in apples and pears. These data enable to assess the action pre-harvest periods for the both low-residual and non-residual fruit production. Information about side effect on natural enemies of pests and other non-target organisms have been worked up for each active substance of pesticides allowed in fruits in the Czech Republic. This knowledge allows us to classify pesticides into three groups marked as a so called green, yellow and red list for IPM growing systems. The possibilites of the use of biological and biotechnological methods are outlined at the end of the publication.
Fulltext:  PDF
|
|
| |
|
|
The Development of new traffic vehicles in Prague public transport (1918-1939):realised and unrealised projects
Vávra, Radek ; Jakubec, Ivan (advisor) ; Štemberk, Jan (referee)
Main subject of the thesis is the history of public transport in Prague from 1918 to 1939 with focus on new means of public transport, with information divided into realized (buses and trolley buses) and unrealized projects (the underground). The thesis aims to broaden the current knowledge of inception and development of new means of transport and evaluate their measure of success. The introductory chapter summarizes the preceding development in public transport of Prague. The next is concerned with trams, the most common public transport vehicles of the era. The key part of the thesis consists of chapters focused on buses, trolley buses and proposed underground system. Those chapters deal with the circumstances of the conception of the projects, the causes that led to the projects being realized (or not), and subsequent development and success of those projects based among other sources on statistic data. Powered by TCPDF (www.tcpdf.org)
|
|
|
History of Prague public transport and the Electric Company from the beginning to year 1939
Vávra, Radek ; Dobeš, Jan (advisor) ; Šouša, Jiří (referee)
Práce se zabývá historií pražské městské hromadné dopravy do roku 1939, s přihlédnutím k prvním formám hromadné dopravy a souvislostem jejího vzniku. Tyto jsou doplněny porovnáváním statistických hodnot a sledováním důležitých vnitroměstských tras a směrů. První část popisuje nejstarší prostředky dopravy cestujících až po první skutečně hromadný dopravní prostředek, omnibus. Zároveň se zabývá souvisejícími technickými a společenskými změnami 19. století. Následuje část, týkající se koněspřežné dráhy, posledního prostředku veřejné dopravy s animálním pohonem. Třetí část se věnuje především prvním elektrickým drahám provozovaným soukromými podnikateli. Čtvrtá část se zaobírá Elektrickými podniky od jejich prvopočátku přes dosažení monopolu až po rozpad Rakouska-Uherska. Předmětem poslední části je vývoj hromadné dopravy města Prahy za Československé republiky.
|
|
|
Optimization of Vehicle Semi-Trailing Arm Suspension
Vávra, Radek ; Blaťák, Ondřej (referee) ; Hejtmánek, Petr (advisor)
This thesis is concerned with the design of Škoda 130 RS rear Semi-Trailing Arm Suspension and fixtures on the body. The main requirement of this thesis is to reduce weight of suspension. It is carried out the kinematic analysis and optimization of the kinematic. The construction part of this thesis provides a design of suspension based on the analysis of forces acting on the car wheel. Last part of the thesis includes of new rear suspension stress analysis.
|
guest ::
