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Zobrazují se záznamy 331-340 z 955
PROPERTIES AND MICROSTRUCTURE OF CEMENT PASTE INCLUDING RECYCLED CONCRETE POWDER
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
The disposal and further recycling of concrete is being investigated worldwide, because the issue of complete recycling has not yet been fully resolved. A fundamental difficulty faced by researchers is the reuse of the ...
AN AIRPLANE WITH UNCONVENTIONALLY PLACED PROPELLER POWER UNIT
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
The significance of the influence of operating propellers on the aircraft aerodynamic characteristics is well-known. Wind tunnel testing of an airplane model with operating propellers is a complex task regarding the required ...
OPTIMIZATION METHOD AND SOFTWARE FOR FUEL COST REDUCTION IN CASE OF ROAD TRANSPORT ACTIVITY
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
The transport activity is one of the most expensive processes in the supply chain and the fuel cost is the highest cost among the cost components of transportation. The goal of the research is to optimize the transport ...
CHARACTERIZATION OF SELECTED PROPERTIES OF COMPOSITES OF WASTE PAPER WITH UNTREATED BAMBOO STEM FIBRE AND RICE HUSK
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
Composite technology is an excellent approach to utilizing natural fibres and agricultural wastes, which constitute an environmental nuisance. Efforts are being made to characterize the properties of composites produced ...
IMPROVEMENT OF ENERGY CONSUMPTION IN SPECTRUM SENSING COGNITIVE RADIO NETWORKS USING AN EFFICIENT TWO STAGE SENSING METHOD
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
Cognitive radio (CR) is a wireless technology developed to improve the usage in the spectrum frequency. Energy consumption is considered as a big problem in this technology, especially during a spectrum sensing. In this ...
CYCLIC TEMPERATURE LOADING RESIDUAL FLEXURAL STRENGHT OF REFRACTORY SLABS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
This paper describes the effect of cyclic elevated temperature loading on refractory slabs made from high performance, fibre reinforced cement composite. Slabs were produced from aluminous cement-based composites, reinforced ...
MODIFICATION OF POWDER MATERIAL BY COMPACTION PROCESSING
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
There are different criteria for assessing the appropriateness of an agglomeration technology in the deployment processing of dry, fine and dirty dust burdening in the communal and working environment. Besides the benefit ...
THE IMPACT OF SELECTED PROCESSES AND TECHNOLOGICAL PARAMETERS ON THE GEOMETRY OF THE WELD POOL WHEN WELDING IN SHIELS GAS ATMOSPHERE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
This paper is focused on welding with a consumable electrode in a gas shield atmosphere and its main aim is to show the influence of selected processes and technological parameters on the geometry of the weld pool in terms ...
FICTITIOUS DOMAIN METHOD FOR NUMERICAL SIMULATION OF INCOMPRESSIBLE VISCOUS FLOW AROUND RIGID BODIES
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
This article describes the method of efficient simulation of the flow around potentially many rigid obstacles. The finite element implementation is based on the incompressible Navier-Stokes equations using structured, ...
AERODYNAMIC LOAD OF AN AIRCRAFT WITH A HIGHLY ELASTIC WING
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
In this article, a method for calculation of air loads of an aircraft with an elastic wing is presented. The method can predict a redistribution of air loads when the elastic wing deforms. Unlike the traditional Euler or ...