National Repository of Grey Literature 1,041 records found  beginprevious21 - 30nextend  jump to record: Search took 0.13 seconds. 

Simulations of brittle-ductile behavior of crucks in alfha iron
Rosecký, Zdeněk ; Machová, Anna
Atomistic simulations in bcc iron under plane strain show that cracks with orientation (-110) [110] emitt dislocations which causes crack blunting and crack stability near the critical Griffith stress.

Effect of modulation of ionic channel conductivities on restitution processes in cardiac cells (Computer modelling)
Pásek, Michal ; Šlichta, J.
The restitution properties of cardiac action potential were shown to be important determinants of stability of reentrant arrhythmias. The restitution hypothesis states that steeply sloped restitution curves (relations between action potential duration and preceding diastolic interval) induce unstable wave propagation that results in wave break, the event that leads to fibrillation. In this contribution we try to explore the effect of modulation of membrane channel conductuvities on electrical restitu**n curves by means of computer modelling.

The position of the EU in the world economy: comparison with USA and Japan
Fečová, Zuzana ; Cihelková, Eva (advisor) ; Kačírková, Eliška (referee)
The main purpose of this bachelor's thesis is to evaluate the current status of the European Union as one of the most influential players in the global economy. The analysis uses comparison with the other two major world powers -- USA and Japan. The first part is focused on the performance of the economies in terms of absolute production (GDP) and economic growth. The chapter then identifies the impact of growth on employment, price stability and public finances and defines the major economic and social problems. The second chapter assesses the EU's external relations based on the trade performance and capital flows. It also analyzes the participation in the international transfer of science and technology and labour migration. The aim of the last chapter is to assess the current position of the EU in the world by comparison with the world indicators. Considering this comparison, the chapter defines the main EU problems as particularly decreasing competitiveness in the context of crisis and rapid onset of developing countries. In this chapter are then reported and presented ways how to overcome these problems.

he influence of the debt crisis on the monetary integration in Europe
Šrytrová, Ladislava ; Čajka, Radek (advisor) ; Bolotov, Ilya (referee)
The aim of this theses is to describe the range of influence of the debt crisis and after that evaluate the influence on the monetary integration in Europe. In this connection I name steps that were or are going to be done for sustainability and stability of the monetary union. This theses deal with history of integration and theoretical basis of the monetary union. It also includes crisis development, rescue and stabilization mechanisms and current trends in the integration.


Stability solution of framed structures
Baxant, Radek ; Brdečko, Luděk (referee) ; Zídek, Rostislav (advisor)
This diploma thesis deals with the subject of slenderness bars’ stability assessment, especially in the steel structures. Before the assessment of bars in the frame constructions, we search for the influence of the computational model’s settings on the final result. The initial geometrical imperfections are examined on the model of Euler’s bar. The influence of the rigidity of girders on the poles’ buckling length is examined on the basic frame construction. The buckling lengths are assessed in the comparison with the figures we got from the statistical tables and the computational software. The influence of construction’s initial tilt and its replacement by the system of outer forces is examined on the frame structure. Three-hinged frame structure with variable cross-section member is designed then and the influence of non-linear calculations on the inner forces is studied. In the complex frame assessment, the influence of the number of parts of variable cross-section member on the bars’ buckling length is examined.

Functional disorders of lower extremities, possible influencing by physiotherapy and its influence on the posture
Hellebrandová, Lenka ; Šafářová, Marcela (advisor) ; Frei, Robert (referee)
Functional disorders of lower extremities, possible influencing by physiotherapy and its influence on the posture Powered by TCPDF (www.tcpdf.org)

Aeroelastic instability of a system with nonconservativeand gyroscopic forces
Náprstek, Jiří ; Pospíšil, Stanislav
Mathematical model of stability loss due to flutter effect.The origin of instability consists of nonconservative andgyroscopic forces.

Assesment of assistant systems influence to the process vehicle drive stability in terms of project E_VECTOORC
Machan, J. ; Nedoma, P. ; Plíhal, Jiří
The paper introduces the current state of research project related to yaw moment control, anti-lock braking and traction control through the employment of effective torque vectoring strategies for fully electric vehicles. In particular, the adoption of individually controlled electric powertrains with the aim of tuning the vehicle dynamic characteristics in steady-state and transient conditions is discussed.

Development of stability indicating method for chosen preparation
Chmurová, Klára ; Kastner, Petr (advisor) ; Mokrý, Milan (referee)
1 Abstrakt Development of stability indicating method for chosen preparation(HPLC determination of benzyl alcohol in vaginal cream) Graduation thesis Klára Chmurová Charles University in Prague, Pharmaceutical Faculty in Hradec Králové, Department of Pharmaceutical Chemistry and Drug Control The task was to find out a method of simultaneous determination of benzylkalcohol and imidazol (decomposition product of main substance of cream - clotrimazole). This thesis is intent on determination of benzylalcohol. We were looking for proper modification of the pharmaceutical preparation (vaginal cream), then optimisation of chromatographic conditions and validation of this HPLC method also. The best results were obtained with LiChrosphere RP 18,5 µm column (125 mm x 4,6 mm, SUPELCO, ), methanol : buffer (solution of 250 ml water, 1,05 ml triethylamine and 0,333g natrium hexasulphonate, pH = 7, set up by 85% H3PO4) 30 : 70 (v/v) was used as the mobile phase, flow rate was 1 ml/min. Detection was realised by UV detector with wave length set up on 223 nm. Time of analysis was shorter than 10 min.