Prohlížení Acta Polytechnica. 2012, vol. 52 dle názvu
Zobrazují se záznamy 34-53 z 100
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Energy Estimation of Distributed Phase-shift Beamforming
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)Ad-hoc and sensor networks are composed of small, low-power devices, which can connect between themselves without the help of an infrastructure. Research in this area has been both extensive and intensive and is still very ... -
Energy Recovery from Contaminated Biomass
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)This study focuses on thermal gasification methods of contaminated biomass in an atmospheric fluidized bed, especially biomass contaminated by undesirable substances in its primary use. For the experiments, chipboard waste ... -
ESSO — Electrification of the Central Labe Districts between 1916 and 1950
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)Elektrárenský svaz stredolabských okresu, LLC (in English “The Power Plant Union of the Central Labe (Elbe)” districts, which will be referred to here as “ESSO”), came into existence in 1916 in response to growing interest ... -
Evaluation of Bioelectrical Impedance Spectroscopy for the Assessment of Extracellular Body Water
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)This study evaluates bioelectrical impedance spectroscopy (BIS) measurements to detect body fluid status. The multifrequency impedance measurements were performed in five female pigs. Animals were connected to an extracorporeal ... -
Experimental Investigation of Radial Gas Dispersion Coefficients in a Fluidized Bed
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)In a fluidized bed boiler, the combustion efficiency, the NOX formation rate, flue gas desulphurization and fluidized bed heat transfer are all ruled by the gas distribution. In this investigation, the tracer gas method ... -
Explosion Cladding of Lead on Steel
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)This work deals with explosion cladding of lead on steel. The welded materials and the Semtex S type explosive are characterised. The preparation of the welded materials and the proposed welding assembly are described. The ... -
Femoral Test Bed for Impedance Controlled Surgical Instrumentation
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)The risk for patients during the standard procedure of revision of cemented artificial hip joints is unsatisfactorily highdue to its high level of invasiveness and limited access to the operative field. To reduce this risk ... -
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 ... -
FMEA and FTA Analyses of the Adhesive Joining Process using Electrically Conductive Adhesives
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)This paper introduces a formulation of appropriate risk estimation methods that can be used for improving of processes in the electronics area. Two risk assessment methods have been chosen with regard to the specifics of ... -
Fundamental Research on Hydraulic Systems Driven by Alternating Flow
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)This paper presents a new approach to rotary hydraulic systems, and the functional principles of rotary hydraulic systems that can work using alternating flows. Hydraulic transmissions using alternating flows are based on ... -
Gated Graphene Electrical Transport Characterization
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)Graphene is a very interesting new material, and promises attractive applications in future nanodevices. It is a 2D carbon structure with very interesting physical behavior. Graphene is an almost transparent material that ... -
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 ... -
Global Optima for Size Optimization Benchmarks by Branch and Bound Principles
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)This paper searches for global optima for size optimization benchmarks utilizing a method based on branch and bound principles. The goal is to demonstrate the process for finding these global optima on the basis of two ... -
GRB Duration Distribution Considering the Position of the Fermi
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)The Fermi satellite has a particular motion during its flight which enables it to catch the gamma-ray bursts mostly well. The side-effect of this favourable feature is that the lightcurves of the GBM detectors are stressed ... -
Heat Exchangers for Condensation and Evaporation Applications Operating in a Low Pressure Atmosphere
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)This paper presents a state-of-the-art study of a heat transfer process in liquid spraying heat exchangers placed in a vacuum chamber. The experimental case studied here describes the behavior of a falling film evaporation ... -
Hierarchical Modeling of Mastic Asphalt in Layered Road Structures Based on the Mori-Tanaka Method
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)We present an application of the Mori-Tanaka micromechanical model for a description of the highly nonlinear behavior of asphalt mixtures. This method is expected to replace an expensive finite element-based fully-coupled ... -
Holding Pressure and Its Influence on Quality in PIM Technology
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)The PIM (powder injection molding) process consists of several steps in which faults can occur. The quality of the part that is produced usually cannot be seen until the end of the process. It is therefore necessary to ... -
Hygiena 3, a Forgotten Project for Electrolytic Water Treatment
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)In the interwar period, the city of Prague had to resolve the problem of treating the polluted water produced by its citizens. From 1933 - 1936 an ambitious competition was held. The idea behind the competition was to bring ... -
Hygro-Thermo-Mechanical Analysis of a Reactor Vessel
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)Determining the durability of a reactor vessel requires a hygro-thermo-mechanical analysis of the vessel throughout its service life. Damage, prestress losses, distribution of heat and moisture and some other quantities ... -
Idealized Compression Ratio for a Screw Briquetting Press
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)This paper deals with issues in determining the ideal compression ratio for a screw briquetting press. First, the principles of operation and a basic description of the main parts of a screw briquetting press are introduced. ...