Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Evgeniya Gospodinova"'
Autor:
Penio Lebamovski, Evgeniya Gospodinova
Publikováno v:
Technologies, Vol 12, Iss 9, p 159 (2024)
This article presents a new 3D extreme game for virtual reality (VR), which is used to evaluate the impact of generated mental stress on the cardiological state of the playing individuals. The game was developed using Java 3D and Blender. Generated s
Externí odkaz:
https://doaj.org/article/f6e80f32fa0d43baab206580df6295c4
Publikováno v:
Diagnostics, Vol 14, Iss 9, p 926 (2024)
The paper presents a system for analyzing cardiac activity with the possibility of continuous and remote monitoring. The created sensor mobile device monitors heart activity by means of the convenient and imperceptible registration of cardiac signals
Externí odkaz:
https://doaj.org/article/99811879cea7477e869ce2f781879a1e
Publikováno v:
Diagnostics, Vol 13, Iss 15, p 2549 (2023)
This article presents the results of a study of the cardiac activity of patients diagnosed with arrhythmia and ischemic heart disease. The obtained results were compared with the results obtained from a healthy control group. The studies were conduct
Externí odkaz:
https://doaj.org/article/11f89a7ef830413d8a1c18bb6f786701
Publikováno v:
Fractal and Fractional, Vol 7, Iss 5, p 388 (2023)
The dynamics of cardiac signals can be studied using methods for nonlinear analysis of heart rate variability (HRV). The methods that are used in the article to investigate the fractal, multifractal and informational characteristics of the intervals
Externí odkaz:
https://doaj.org/article/cac74cf4422042b8953fb50c33936d25
Autor:
Evgeniya Gospodinova, Penio Lebamovski, Galya Georgieva-Tsaneva, Galina Bogdanova, Diana Dimitrova
Publikováno v:
Mathematics, Vol 10, Iss 19, p 3427 (2022)
In the article, a comparative analysis is performed regarding the accuracy parameter in determining the degree of self-similarity of fractal processes between the following methods: Variance-Time plot, Rescaled Range (R/S), Wavelet-based, Detrended F
Externí odkaz:
https://doaj.org/article/b69804c9e7a44029a4c3ca924e3168c3
Publikováno v:
Diagnostics, Vol 12, Iss 2, p 412 (2022)
The article presents a methodology to support the process of correct cardiodiagnostics based on cardio signals recorded with modern optical photoplethysmographic (PPG) sensor devices. An algorithm for preprocessing registered PPG signals and the form
Externí odkaz:
https://doaj.org/article/fe7cb3750ede4a2b904ddedd8022f97e
Publikováno v:
Mathematics, Vol 10, Iss 3, p 390 (2022)
This paper describes the application of cryptography and steganography in the protection of cardiac databases. The original cardiac data studied were transformed using a Daubechies wavelet transform. The next step is to conduct Energy Packing Efficie
Externí odkaz:
https://doaj.org/article/87554021fe2849b490e130f4d1973f3d
Autor:
Anilesh Dey, D. K. Bhattacha, D.N. Tibarewala, Nilanjan Dey, Amira Ashour, Dac-Nhuong Le, Evgeniya Gospodinova, Mitko Gospodinov
Publikováno v:
International Journal of Interactive Multimedia and Artificial Intelligence, Vol 3, Iss 7, Pp 87-95 (2016)
Cardiac disease is one of the major causes for death all over the world. Heart rate variability (HRV) is a significant parameter that used in assessing Autonomous Nervous System (ANS) activity. Generally, the 2D Poincare′ plot and 3D Poincaré plot
Externí odkaz:
https://doaj.org/article/2809395056fa4572a62263ead4d17500
Publikováno v:
Diagnostics, Vol 10, Iss 5, p 322 (2020)
The mathematical analysis and the assessment of heart rate variability (HRV) based on computer systems can assist the diagnostic process with determining the cardiac status of patients. The new cardio-diagnostic assisting computer system created uses
Externí odkaz:
https://doaj.org/article/8daa3094026a4197833a6b285ef8faf2
Publikováno v:
Applied Sciences, Vol 10, Iss 3, p 1051 (2020)
This article introduces an integrated photoplethysmographic (PPG) based cardiovascular monitoring system that consists of an individually portable PPG device for recording photoplethysmographic signals and a software system with a serverless architec
Externí odkaz:
https://doaj.org/article/8fe49edbf1224f4997e4d99a2dacac99