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Geometrical Modeling of Concrete Microstructure for the Assessment of ITZ Percolation
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
Percolation is considered to be a critical factor affecting the transport properties of multiphase materials. In the case of concrete, the transport properties are strongly dependent on the interfacial transition zone ...
Physical and Chemical Aspects of the Nucleation of Cement-Based Materials
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
A theoretical model of the nucleation of portlandite is proposed, and the critical size of a portlandite cluster and the energy barrier of nucleation are determined. The steady state nucleation rate and the time lag of the ...
Micromechanical Analysis of Cement Paste with Carbon Nanotubes
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
Carbon nanotubes (CNT) are an attractive reinforcement material for several composites, due to their inherently high strength and high modulus of elasticity. There are controversial results for cement paste with admixed ...
Flexible Multi-Electrode Array for Medical Applications
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
A flexible multi-electrode array (MEA) with an embedded silicon chip for electrical stimulation of neurons or for recording action potentials has been manufactured and characterized. Possible improvements for medical ...
A Network Simulation Tool for Task Scheduling
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
Distributed computing may be looked at from many points of view. Task scheduling is the viewpoint, where a distributed application can be described as a Directed Acyclic Graph and every node of the graph is executed ...
Energetic Approach to Large Strain Gradient Crystal Plasticity
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
We formulate a problem of the evolution of elasto-plastic materials subjected to external loads in the framework of large deformations and multiplicative plasticity. We focus on a spontaneous inhomogenization interpreted ...
Nuclear Fusion Effects Induced in Intense Laser-Generated Plasmas
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
Deutered polyethylene (CD2)n thin and thick targets were irradiated in high vacuum by infrared laser pulses at 1015W/cm2 intensity. The high laser energy transferred to the polymer generates plasma, expanding in vacuum at ...
Ignition Features of Plasma-Beam Discharge in Gas-Discharge Electron Gun Operation
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
The current paper presents the results of experimental researches to determine the mode features of plasma-beam discharge (PBD) generation by an electron beam injected by a low-vacuum gasdischarge electron gun (LGEG) with ...
Fractal Dimension Estimation in Diagnosing Alzheimer’s Disease
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
Estimated entropies from a limited data set are always biased. Consequently, it is not a trivial task to calculate the entropy in real tasks. In this paper, we used a generalized definition of entropy to evaluate the ...
Characterization of Human Gait using Fuzzy Logic
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2013)
In medical practice, there is no appropriate widely-used application of a system based on fuzzy logic for identifying the lower limb movement type or type of walking. The object of our study was to determine characteristics ...