The nonlinear dynamics of two chaotic systems, namely the optoelectronic feedback (OEFB) and the Lu-Chen electronic chaotic system, are simulated and implemented in this work using the Berkeley Madonna software. Control parameters and initial conditions have been adjusted to demonstrate transitions from one state to another. Upon modifying certain regulating elements, both systems exhibited excessive sensitivity to initial conditions and displayed dynamic nonlinear behavior. The OEFB system reveals a homoclinic condition with a Shilnikov attractor as the feedback intensity increases. In contrast, the Lu-Chen system exhibits sensitivity to parameters a, b, and c, accompanied by multiscroll behavior, as evidenced by time series, the Fast Fourier Transform (FFT), and attractor analysis. These results offer potential applications, including data encoding, secure communications, and image processing. This research studied the properties of two different chaotic dynamical systems. These two chaotic systems are optoelectronic feedback and Chua systems. The results are analyzed, and it is found that the behavior of the Chua system changes in the time series, which in turn causes the attractor to change. The results showed a significant increase in the Chua system's bandwidth. Studying the different characteristics opens a broad scope for many applications, the most important of which is secure communications.
{"title":"Nonlinear Dynamic Behavior of Two Distinct Chaotic Systems","authors":"Hayder A. Naser, Huda Hamdan Ali","doi":"10.52098/acj.2024419","DOIUrl":"https://doi.org/10.52098/acj.2024419","url":null,"abstract":"The nonlinear dynamics of two chaotic systems, namely the optoelectronic feedback (OEFB) and the Lu-Chen electronic chaotic system, are simulated and implemented in this work using the Berkeley Madonna software. Control parameters and initial conditions have been adjusted to demonstrate transitions from one state to another. Upon modifying certain regulating elements, both systems exhibited excessive sensitivity to initial conditions and displayed dynamic nonlinear behavior. The OEFB system reveals a homoclinic condition with a Shilnikov attractor as the feedback intensity increases. In contrast, the Lu-Chen system exhibits sensitivity to parameters a, b, and c, accompanied by multiscroll behavior, as evidenced by time series, the Fast Fourier Transform (FFT), and attractor analysis. These results offer potential applications, including data encoding, secure communications, and image processing. This research studied the properties of two different chaotic dynamical systems. These two chaotic systems are optoelectronic feedback and Chua systems. The results are analyzed, and it is found that the behavior of the Chua system changes in the time series, which in turn causes the attractor to change. The results showed a significant increase in the Chua system's bandwidth. Studying the different characteristics opens a broad scope for many applications, the most important of which is secure communications.","PeriodicalId":497538,"journal":{"name":"Applied computing journal","volume":"123 38","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140378964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this research paper, we applied experiments using virtual reality technology to teach young students with the participation of their teachers and parents. This technology was applied to second-grade students, approximately 39 male and female students, and they were distributed into groups containing a certain number of students studying one common topic among them, using virtual reality glasses to watch a video explaining the required topic. All selected topics were mathematics only to achieve satisfactory results. After that, the teacher distributed activities to the students without any prior explanation of what was seen, and the parents also discussed with the students to determine the amount of comprehension and understanding of what was accomplished using this technology. The results showed correct and rapid responses for most students, up to 89.74%, compared to 10.25% of the students who did not complete their performance. We hope to apply some of the modern technologies to teach students and provide them with the desired experiences for the future of the country.
{"title":"Applying Virtual Reality Experiments on Teaching kids from Teacher and Parent's perspective","authors":"Aaisha S. AlShibli, Arwa K. AlSariri","doi":"10.52098/acj.2023334","DOIUrl":"https://doi.org/10.52098/acj.2023334","url":null,"abstract":"In this research paper, we applied experiments using virtual reality technology to teach young students with the participation of their teachers and parents. This technology was applied to second-grade students, approximately 39 male and female students, and they were distributed into groups containing a certain number of students studying one common topic among them, using virtual reality glasses to watch a video explaining the required topic. All selected topics were mathematics only to achieve satisfactory results. After that, the teacher distributed activities to the students without any prior explanation of what was seen, and the parents also discussed with the students to determine the amount of comprehension and understanding of what was accomplished using this technology. The results showed correct and rapid responses for most students, up to 89.74%, compared to 10.25% of the students who did not complete their performance. We hope to apply some of the modern technologies to teach students and provide them with the desired experiences for the future of the country.","PeriodicalId":497538,"journal":{"name":"Applied computing journal","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134909667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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