This study contributes to the reception quality improvement of small satellites' signals. Traditionally, the data from a satellite is downloaded through single radio link to the related steerable ground station. This single communication is problematic as it is highly exposed to outages&...

This work describes the control of the amplitude of the output signal (or amplitude stabilization) in digital sine recursive oscillators. As in the case of analog oscillators, it is also necessary to control the amplitude of digital oscillators with a sine wave. If the amplitu...

Home blood pressure monitors will play increasingly important role in 21st century healthcare. Improvements in their accuracy and reliability will be necessary. In this paper we described their function and suggested several improvements. The improvements include static accuracy check, a public&#...

A conventional ground station can establish a single downlink with only one satellite at a time through steerable high-gain antenna. In addition to the lack of tracking more than one satellite at once, such single radio communication is highly vulnerable to outages when experiencin...

Advanced Electro-Hydraulic Systems (AEHS) are the only way to achieve top-notch parameters for high-end vibration machines. The AEHS is intended to a more complex forming test system developed at University of West Bohemia. The AEHS speeds up the hydraulic by increasing pressure in ...

In this paper the anaerobic threshold measuring and approximation with minimum number of blood samples is described. Anaerobic thresholds are calculated for athletes tested on a bicycle ergometer and treadmill ergometer where the heart rate and pulmonary ventilation parameters, oxygen consumption...

This paper deals with the design of a prototype microstrip filter, which would be suitable for integration into active phased array antennas. This novel compact microstrip lowpass filter is based on funnel shaped resonator and semi elliptical patches. The proposed filter is designed,&#x...

In this article, a new method is presented to calculate dimensions of a hexagonal-shaped antenna based on frequency and rectangular-shaped antenna. The frequency responses of the presented antenna are compared with rectangular shape antenna and both antennas are designed at 2.4 GHz. The...

This paper presents the design and analysis of a traditional printed log-periodic dipole array antenna with two feeding methods: direct feeding and straight coaxial feeding. Ten linear dipoles have been arranged in logarithmic style to cover an operating frequency bandwidth from 0.7 GHz...

This paper deals with the simplified economic evaluation of the peak shaving by a battery-based energy storage system in plants with cyclic load profile (typically steel plants) and its own electrical energy source – typically the steam turbine. There are several poss...

Current state-of-the-art phased antenna arrays used in modern generations of mobile networks and radars in terrestrial applications or as spacecraft antennas in space applications tend to be very complex and expensive devices with many mutually coupled elements and many input&#...

In this paper the anaerobic threshold measuring and approximation with minimum number of blood samples is described. Anaerobic thresholds are calculated for athletes tested on a bicycle ergometer and treadmill ergometer where the heart rate and pulmonary ventilation parameters, ...

This work describes the control of the amplitude of the output signal (or amplitude stabilization) in digital sine recursive oscillators. As in the case of analog oscillators, it is also necessary to control the amplitude of digital oscillators with a sine wave. ...

n this article, a new method is presented to calculate dimensions of a hexagonal-shaped antenna based on frequency and rectangular-shaped antenna. The frequency responses of the presented antenna are compared with rectangular shape antenna and both antennas are designed at ...

Home blood pressure monitors will play increasingly important role in 21st century healthcare. Improvements in their accuracy and reliability will be necessary. In this paper we described their function and suggested several improvements. The improvements include static accuracy&#x...

This paper deals with the design of a prototype microstrip filter, which would be suitable for integration into active phased array antennas. This novel compact microstrip lowpass filter is based on funnel shaped resonator and semi elliptical patches. The proposed filter&#...

A conventional ground station can establish a single downlink with only one satellite at a time through steerable high-gain antenna. In addition to the lack of tracking more than one satellite at once, such single radio communication is highly vulnerable to outages&#x...

In this paper the 2 different approach for anaerobic threshold (AnT) determination and approximation were described. Anaerobic thresholds were calculated for athletes tested on a bicycle ergometer and treadmill ergometer where the heart rate (HR) and pulmonary ventilation parameters (VE), oxygen&...

This paper presents the designing, modeling, and simulation of the spiral circular magnetic field probe for near field measurements. Two configurations of this probe have been investigated using both reference boards – conventional and microstrip. Furthermore, this probe has a compact size&#...

In the framework of the MICADO project we proposed an active long-term nuclear waste monitoring system based on Timepix3 technology. Particle detectors based on Timepix3 are capable of particle type discrimination and provide spectrometric information in combination with precise timing informatio...