Hledat
Zobrazují se záznamy 781-790 z 955
Improvement of spectrum sensing performance in cognitive radio using modified hybrid sensing method
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
Cognitive radio (CR) is a wireless technology for increasing the bandwidth usage. Spectrum sensing (SS) is the first step in CR. There are three basic techniques in SS, energy detection (ED), matched filter (MF), and ...
Load carrying capacity of masonry arch railway bridges at the serviceability limit state
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
This article focuses on masonry arch railway bridges. The main topic is the algorithm, which was developed for the purpose of a non-linear arch bridge analysis. The sensitivity analysis of the input parameters of the ...
Analysis of factors affecting the efficiency of Jatropha curcas oil as an asphaltene stabiliser
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
The effect of temperature and applied dose on the efficiency of Jatropha curcas seed oil as an asphaltene stabiliser was studied. Two crude oil samples (light and medium) were used. J. curcas oil was subjected to heating ...
Determination of loads on the body of a boxcar with elastic elements in the center sill
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
The authors suggest elastic elements in the body of a centre sill being the basic carrying element of the frame to decrease the dynamic loads. This solution can transform the dynamic loads on the body into the work of the ...
A mindlin shell finite element for stone masonry bridges with backfill
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
Stone masonry bridges are difficult to analyse with commercial finite element (FE) packages for their specific heterogeneous composition. The stone arch is best modelled as a thick shell where there are predestined directions ...
Measurement of a quantum particle position at two distant locations: a model
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
A simplified one-dimensional model of measurement of the position of a quantum particle by two distant detectors is considered. Detectors are modelled by quantum particles bounded in potential wells with just two bound ...
Experimental verification of the impact of the air staging on the NOx production and on the temperature profile in a BFB
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
The results of an experimental research on air staging in a bubbling fluidized bed (BFB) combustor are presented within this paper. Air staging is known as an effective primary measure to reduce NOX formation. However, in ...
Experimental verification of the efficiency of selective non-catalytic reduction in a bubbling fluidized bed combustor
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
Controlling nitrogen oxide (NOX) emissions is still a challenge as increasingly stringent emission limits are introduced. Strict regulations will lead to the need to introduce secondary measures even for boilers with ...
Theoretical and experimental study of water vapour condensation with high content of non-condensable gas in a vertical tube
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
This article deals with the possibility of separating water vapour from flue gases after oxyfuel combustion using condensation processes. Those processes can generally be described as condensation of water vapour in the ...
Concrete lintels reinforced with steel fibres oriented by a magnetic field
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
This paper explores the possibility of applying the technique of magnetic orientation of steel fibres for manufacturing a concrete structural element of realistic dimensions, compared to small laboratory specimens. This ...