4,295 research outputs found
Petr Simon (1944-2018)
No full textThis article is a reflection on the mathematical legacy of Professor Petr Simon.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Analysi
Centralization of treasury management 2010
No full textThe book consists of five parts: 1. Treasury management and its responsibilities (Chapter 1‐4); 2. Decentralized treasury (Chapter 5); 3. Different phases of the centralization (Chapter 6‐9); 4. Outsourcing (Chapter 10) 5. Regional treasury centres (Chapter 11); 6. Best practices in a bank (Chapter 12); In the first part, the author describes the treasury management focusing on its three core responsibilities, such as assets and liabilities management, cash management, and financial risk management. The second part zooms in on decentralized treasury and decisions about the appropriate degree of centralization/decentralization of the treasury activities. Then we focus on the different phases of the process of centralization, from central interest rate and foreign exchange management through centralization of cash and liquidity management, then transaction processing up to fully centralized treasury. In part four we continue by discussing outsourcing as the next stage following centralization to achieve additional economic benefits. The fifth part contains especially a number of the location criteria, both tax and non‐tax, that must be evaluated during consideration where to establish the regional treasury centre. The last part deals with banking best practices in cash pooling from the point of view of the author that works in one of the top banks in Central and Eastern Europe region
Cyclometalation of phenylpyridines with a ferrocenyl group
No full textNázev práce: Cyklometalace fenylpyridinů s ferrocenylovým substituentem Autor: Bc. Petr Harmach Katedra: Katedra anorganické chemie Vedoucí diplomové práce: prof. RNDr. Petr Štěpnička, Ph.D., DSc. Abstrakt: Cílem této práce byla příprava cyklometalovaných komplexů fenylpyridinů s ferrocenylovým substituentem. Cyklometalované komplexy mají široké spektrum využití, kdy jedním z nejvýznamnějších je použití v katalýze. Připraveny byly iridité a rhodité cyklometalované komplexy s elektrondonorními nebo elektronakceptorními skupinami na pyridinovém kruhu. Všechny tyto látky byly charakterizovány 1 H a 13 C{1 H} NMR spektroskopií, hmotnostní spektrometrií, elementární analýzou a cyklickou voltametrií. U dvou připravených látek byly jejich struktury potvrzeny pomocí metody difrakce rentgenového záření na monokrystalech. Klíčová slova: cyklometalace, pyridin, C-H aktivace, ferrocenTitle: Cyclometalation of phenylpyridines with a ferrocenyl group Author: Bc. Petr Harmach Department: Katedra anorganické chemie Supervisor: prof. RNDr. Petr Štěpnička, Ph.D., DSc. Abstract: The objective of this thesis was the synthesis of cyclometalated complexes of phenylpyridine with a ferrocenyl group. Cyclometalated complexes have a wide range of application, where one of the most important is the use in catalysis. Iridium(III) and rhodium(III) cyclometalated complexes were prepared containing electron-donating or electron-accepting groups on the pyridine ring. All newly prepared complexes were characterized by 1 H a 13 C{1 H} NMR spectroscopy, mass spectrometry, elemetal analysis and cyclic voltammetry. The structures of two complexes were determined by single-crystal X-ray diffraction analysis. Key words: cyclometalation, pyridine, C-H activation, ferroceneDepartment of Inorganic ChemistryKatedra anorganické chemiePřírodovědecká fakultaFaculty of Scienc
Adaptivní volba parametrů stabilizačních metod pro rovnice konvekce-difúze
No full textTitle: Adaptive choice of parameters in stabilization methods for convection- diffusion equations Author: Bc. Petr Lukáš (e-mail: [email protected]) Department: Department of Numerical Mathematics Supervisor: Doc. Mgr. Petr Knobloch, Dr. (e-mail: [email protected]) Abstract: The aim of the work is to propose suitable approaches for adap- tive choice of parameters in stabilization methods for convection-difusion equations discretized by the finite element method. We introduce the L-SR1 method, compare it with other nonlinear methods of minimizing functions with large number of variables, and introduce and compare the adaptive methods based on minimizing of the error indicator. Keywords: Adaptive choice of parameters, finite element method, stabiliza- tion methods, convection-diffusion equation, L-SR1 method, error indicato
Cyclometalation of phenylpyridines with a ferrocenyl group
No full textTitle: Cyclometalation of phenylpyridines with a ferrocenyl group Author: Bc. Petr Harmach Department: Katedra anorganické chemie Supervisor: prof. RNDr. Petr Štěpnička, Ph.D., DSc. Abstract: The objective of this thesis was the synthesis of cyclometalated complexes of phenylpyridine with a ferrocenyl group. Cyclometalated complexes have a wide range of application, where one of the most important is the use in catalysis. Iridium(III) and rhodium(III) cyclometalated complexes were prepared containing electron-donating or electron-accepting groups on the pyridine ring. All newly prepared complexes were characterized by 1 H a 13 C{1 H} NMR spectroscopy, mass spectrometry, elemetal analysis and cyclic voltammetry. The structures of two complexes were determined by single-crystal X-ray diffraction analysis. Key words: cyclometalation, pyridine, C-H activation, ferrocen
Synthesis of gold(I) carbene complexes from isocyanoferrocene
No full textTitle: Synthesis of gold(I) carbene complexes from isocyanoferrocene Author: Petr Harmach Department: Katedra anorganické chemie Supervisor: prof. RNDr. Petr Štěpnička, Ph.D., DSc. Abstract: The objective of this bachelor thesis was the synthesis of gold(I) carbene complexes. These complexes were synthetised from a newly prepared gold(I)-isocyanoferrocene complex and also directly from isocyanoferrocene. Carbene complexes were obtained from primary and secondary amines, and therefore complexes contain disubstituted or trisubstituted diaminocarbene moieties. All newly prepared complexes were characterized by NMR spectroscopy, mass spectrometry, elemental analysis and infrared spectroscopy. The structures of the majority of the prepared complexes were confirmed by single-crystal X-ray diffraction analysis. Key words: isocyanides, ferrocene, carbenes, gold(I) complexe
Homologous ferrocene phosphines
No full textTitle: Homologous ferrocene phosphines Author: Bc. Petr Vosáhlo Department: Department of Inorganic Chemistry Supervisor: prof. RNDr. Petr Štěpnička, Ph.D., DSc. Abstract: This thesis describes the synthesis and coordination behaviour of ferrocene diphosphines derived from 1,1'-bis(diphenylphosphino)ferrocene (dppf). Dppf is one of the most succesful ferrocene ligands, which can be used in various metal-catalyzed reactions. This study aimed to prepare analogous ligands with one dialkylphosphino substituent and one (diphenylphosphino)methyl group. These ligands were oxidized by KSeCN to afford the corresponding phosphinoselenides. The phosphinoselenides were used to assess sigma-donor abilities by measuring the coupling constant 1 JSeP via 31 P NMR spectroscopy. Lastly, the coordination behaviour of these ligands in palladium complexes was studied. The homologous ligands usually formed a mixtures containing a chelate complex and dimeric species with trans- coordinated ligands. Key words: ferrocene, phosphines, homologous ligands, palladium(II) complexes, structure elucidation
School information systems at secondary schools in Liberec region
No full textTITLE: School information systems at secondary schools in Liberec region AUTHOR: Ing. Petr Hujer DEPARTMENT: The Center of School management SUPERVISOR: Ing. Petr Svoboda Ph.D. ABSTRACT: The bachelor thesis deals with mapping and comparison of information systems at secondary schools in the Liberec Region. In the first part the author tries to compare 5 strongest products among school information systems on the Czech market. In the second, research part there is mapped how many schools use these products and whether they are satisfied with the products. The thesis is based on data about the systems which is available on the companies' websites, in promotion materials or demo versions of the programs. The research part processes the results of a survey. The main benefits of the thesis for the school management include: comparison of the products and their features purchase prices and yearly fees switch from one product to a competing one quality of an information system and consecutive system of education of the school staff KEYWORDS: information system, system, data, school, database
Rozhovor Britských listů 233. Petr Pithart: Proč byli politikové Pražského jara tak zbabělí? [Britské listy Interview 233. Petr Pithart: Why were the Prague Spring politcians such cowards?]
No full text(This interview is in Czech with English subtitles)
On the occasion of the thirty years' anniversary of the fall of communism, we broadcast three exclusive interviews with Petr Pithart, the first Prime Minister of the post-communist Czech Republic and a close collaborator of Czechoslovak President Václav Havel. In this, second, interview, Petr Pithart is - rightly - highly critical of the cowardice of Alexander Dubček and the other leaders of the Czechoslovak CP during and after the 1968 Prague Spring. Pithart testifies to the remarkable perspicacity of Zdeněk Mlynář, the main strategist of the Prague Spring and the author of the 1968 Czechoslovak CP Action Programme. Within 20 minutes of Dubček being appointed leader of the CzCP on 5th January 1968, Mlynář predicted the Soviet invasion of Czechoslovakia. Fifty years ago this month, in August 1969, Dubček brutally betrayed Czechoslovak citizens who protested against the Soviet invasion, chanting his name. He sent the army and the police to suppress them. The interview is being broadcast by the Czech cable TV station Regionalnitelevize.cz from Friday 16th August, 2019
Utilization of Radar Echo Extrapolation for Quantitative Precipitation Forecast
No full textTitle: Utilization of radar echo extrapolation for quantitative precipitation forecast Author: Petr Frolík Department: Department of Meteorology and Enviroment Protection Supervisor: RNDr. Petr Novák, PhD., ČHMÚ Supervisor's e-mail address: [email protected] Abstract: At present time weather radar data are essential for national meteorological services. Utilization of this data for quantitative precipitation forecast and severe weather prediction for short period (nowcasting) becomes more and more common. Increasing interest for quantitative precipitation forecasts can be noticed in hydrological applications, where it can give early warning on flash floods and can improve large scale precipitation forecasts. This paper verifies usability of COTREC nowcasting method based on extrapolation of radar echo for quantitative precipitation forecast. Quality of COTREC forecast up to 3 hours was investigated on data from 1.4.2006 to 30.9.2006. Comparison of COTREC method with Aladin NWP model forecasts was also made. Hourly mean precipitation estimates on catchments were chosen for comparison because of verification focused mainly on utilization of the forecasts in hydrological applications. Forecasted precipitation estimates were compared with optimal operationally available precipitation estimate - adjusted radar..
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