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NATM TUNNELS – CONSIDERATION OF THE PARTLY DAMAGED PRIMARY LINING IMPACT FOR THE SECONDARY LINING EVALUATION
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
Tunnels excavated by the New Austrian Tunnelling Method (NATM) are traditionally supported by a double-shell lining. The primary lining is generated from reinforced sprayed concrete with rockbolts, the secondary lining is ...
BETA CANTOR SERIES EXPANSION AND ADMISSIBLE SEQUENCES
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
We introduce a numeration system, called the beta Cantor series expansion, that generalizes the classical positive and negative beta expansions by allowing non-integer bases in the Q-Cantor series expansion. In particular, ...
OPTIMIZING EFFICIENCY OF THE COMBINED SEWER OVERFLOW CHAMBER HOBAS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
The paper deals with the design of swinging self-clean screen bars and the assessment of pressure losses in the combined sewer overflow chamber (HOBAS CSO Chamber), sold by the company HOBAS. The HOBAS CSO Chamber ensures ...
TESTING OF GLUED JOINTS ON PLASTIC PARTS MANUFACTURED USING FFF TECHNOLOGY
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
The article focuses on the testing of glued joints of plastic parts manufactured by 3D rapid prototyping, using the Fused Filament Fabrication technology. The first part of the article describes the suitability of using a ...
A combined strain element to functionally graded structures in thermal environment
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
Functionally graded materials are commonly used in a thermal environment to change the properties of constituent materials. They inherently withstand high temperature gradients due to a low thermal conductivity, core ...
VERSATILE CHIRP SINE GENERATOR ON FIXED-POINT FPGA
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
This paper deals with a logarithmic and a linear chirp sine generation on a fixed-point FPGA mainly for vibration testing, nevertheless, the generator can also be used in other areas. A basic overview of the logarithmic ...
A NEW FASTENER TO ENSURE THE RELIABILITY OF A PASSENGER CAR BODY ON A TRAIN FERRY
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
To ensure the strength of the passenger car bodies during transportation on train ferries, it is proposed to mount fastening elements of chain binders on the body bolster beams. The principle of such an element is based ...
HOMOGENIZATION OF TRANSPORT PROCESSES AND HYDRATION PHENOMENA IN FRESH CONCRETE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
The problem of hydration and transport processes in fresh concrete is strongly coupled and non- inear, and therefore, very difficult for a numerical modelling. Physically accurate results can be obtained using fine-scale ...
PERFORMANCE ANALYSIS OF QUADRATURE CHAOS SHIFT
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
One of the most famous techniques of non-coherent differential chaos shift keying (DCSK) is Quadrature chaos shift keying (QCSK) system, this system suffered from lowering the data rate and increasing the bit energy during ...
SUITABLE PRODUCTION TOOLS SELECTION WITH THE USE OF EVOLUTIONARY ALGORITHMS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2020)
This paper deals with the use of a production equipment simulation in the design of production systems, more specifically the welding equipment in the automotive industry. Based on the simulation results, a matrix, which ...