Volume 14 Number 2 June 2024

    
Spectrum Analysis and Data Processing with Automated Multiple-channel Measurements

Plamen Balzhiev, Wojtek Bock, Tinko Eftimov, Rumen Arnaudov

https://doi.org/10.6025/jes/2024/14/2/37-45

Abstract In this paper, we present techniques for analyzing spectrum and processing data. We introduce a system for automated measurement of multiple channels, featuring controlled fibre-optic signal switching and analysis of spectra using a linear CCD photodiode array, diffraction grating, and an accurate stepper motor. This system requires sophisticated techniques for measurement and data processing. The work outlines the techniques used... Read More


A Study Of Dynamic Height of the Mass Center with Stability Curves

Mariya Eremieva, Viktoriya Sabeva, Mariya Nikolova, Emiliya Koleva

https://doi.org/10.6025/jes/2024/14/2/46-50

Abstract We are determining the steadiness of a ship at both small and large tipping angles through the creation of Static Stability Curves. This approach introduces the concept of Dynamic Height of the Mass Centre (DHMC)... Read More


Capacitive Sensors for Minimizing the Effects of Temperature and Supply Voltage

Teodora Trifonova, Valentina Markova, Valentin Todorov and Ventseslav Draganov

https://doi.org/10.6025/jes/2024/14/2/51-60

Abstract A new capacitive sensor with high sensitivity, designed to minimize the effects of temperature and supply voltage, has been developed. This study also examines how the frequencies of the generators might affect the capacitance readings. The stability and sensitivity of various stabilized quartz generators are explored in depth, providing a comprehensive understanding of their performance. From these thorough findings, a... Read More


Digital Media Industry Development Planning and Realistic Teaching

Yonghong Wang, Liping Wang

https://doi.org/10.6025/jes/2024/14/2/61-69

Abstract This article explores the relationship between the development planning of the digital media industry and real-life teaching. With the continuous development of digital technology, the media industry is also undergoing unprecedented changes. Therefore, how to adapt to this trend, formulate reasonable development plans, and combine them with real-life teaching to improve teaching quality and effectiveness has become a topic of... Read More