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Zobrazují se záznamy 811-820 z 955
Self-interference cancellation in underwater acoustic communications systems using orthogonal pilots in IBFD
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
This paper proposes a Self-interference (SI) cancellation system model of Underwater acoustic (UWA) communication for in-band full-duplex (IBFD) technology. The SI channel is separated from the Far channel by exploiting a ...
A COMPARISON OF THE TENSILE STRENGTH OF PLASTIC PARTS PRODUCED BY A FUSED DEPOSITION MODELING DEVICE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
Rapid Prototyping systems are nowadays increasingly used in many areas of industry, not only for producing design models but also for producing parts for final use. We need to know the properties of these parts. When we ...
Heat transfer characteristics of double pipe heat exchanger having externally enhanced inner pipe
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
An investigation on enhancement of heat transfer is carried out for a double pipe heat exchanger in which the outer wall of the inner pipe is provided with circumferential labyrinth passages. Rectangular and triangular ...
Induction motor mechanical defect diagnosis using DWT under different loading levels
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
The information extraction capability of the widely used signal processing tool, FFT for diagnosing induction machines, is commonly used at a constant load or at different levels. The loading level is a major influencing ...
Comparative study of state space averaging and PWM with extra element theorem techniques for complex cascaded DC-DC Buck converter
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
Until now, most commonly used state space averaging and PWM techniques have been applied to different converter topologies and their advantages and disadvantages were stated. However, the superiority of an analytical ...
ON THE SPEED OF SOUND IN STEAM
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2015)
A study of the speed of sound in a pure water substance is presented here. The IAPWS data on the state of water and steam are applied only for investigating the speed of sound for a one-phase medium. A special numerical ...
Linearisation of a second-order nonlinear ordinary differential equation
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2023)
We analyse nonlinear second-order differential equations in terms of algebraic properties by reducing a nonlinear partial differential equation to a nonlinear second-order ordinary differential equation via the point ...
DETERMINING THE ROLE OF INDIVIDUAL FLY ASH PARTICLES IN INFLUENCING THE VARIATION IN THE OVERALL PHYSICAL, MORPHOLOGICAL, AND CHEMICAL PROPERTIES OF FLY ASH
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
The properties of fly ashes vary because of the differences in the properties of their individual particles, and the determination of variation in these properties is of interest to the industries which use pulverized raw ...
CZECH WW2 CONCRETE FORTIFICATIONS: CORROSION PROCESSES AND REMEDIATION METHOD BASED ON CRYSTALLIZING COATING
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2019)
Concrete is a relatively new structural material, hence the remediation of concrete structures is very rare. There are a lot of concrete fortifications in the Czech Republic, which were built just before WW2. These bunkers ...
SYSTEM FOR MEASURING KINEMATICS OF VESTIBULAR SYSTEM MOVEMENTS IN NEUROLOGICAL PRACTICE
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2016)
The article deals with the design of a system for studying kinematics of movement of the vestibular system. Up to now there has not existed a system which would enable to measure the kinematic quantities of movement of the ...