Prohlížení Acta Polytechnica. 2012, vol. 52 dle názvu
Zobrazují se záznamy 27-46 z 100
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Design Process of Energy Effective Shredding Machines for Biomass Treatment
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)The shredding process has not been sufficiently investigated for the design of better, energy and material saving shredding machines. In connection with present-day concern about the environment, ecology, energy saving, ... -
Determination of Uncertainties for Correlated Input Quantities by the Monte Carlo Method
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)This paper presents the calculation of the uncertainty for distribution propagation by the Monte Carlo method for a measurement model with one output quantity. The procedure is shown on the basis of an example of the ... -
Development of an Ultralight with a Ducted Fan
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)This paper introduces the UL-39 project, an ultralight aircraft with a ducted fan, and some of the problems that have arisen in the course of its development. Several problems with the design of a non-traditional aircraft ... -
Diamond Films for Implantable Electrodes
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)Diamond is a promising material for implantable electrodes due to its unique properties. The aim of this work is to investigate the growth of boron-doped nanocrystalline diamond (B-NCD) films by plasma-enhanced microwave ... -
Effect of Gas Mixture Composition on the Parameters of an Internal Combustion Engine
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)This paper deals with the use of the internal combustion piston engine, which is a drive unit for micro-cogeneration units. The introduction is a brief statement of the nature of gas mixture compositions that are useful ... -
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 ... -
Energy Accumulation by Hydrogen Technologies
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)Photovoltaic power plants as a renewable energy source have been receiving rapidly growing attention in the Czech Republic and in the other EU countries. This rapid development of photovoltaic sources is having a negative ... -
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 ...