https://repositorio.ufu.br/handle/123456789/17890 Wed, 09 Sep 2026 16:00:07 GMT 2026-09-09T16:00:07Z https://repositorio.ufu.br/handle/123456789/50161 Title: Análise bibliométrica do emprego de metodologias ágeis na engenharia eletrônica: o caso do desenvolvimento de softwares Abstract: This paper presents a bibliometric analysis of the use of agile methodologies in Electronic Engineering, focusing on software development, and investigates the influence of artificial intelligence (AI) in this context. The study was conducted based on 173 scientific articles published between 2000 and 2025, extracted from the Web of Science, and analyzed using tools such as VOSviewer and Bibliometrix. The results reveal that Scrum is the most widely used agile framework, standing out for its flexibility in complex projects, such as embedded systems. The integration of AI has shown promise, with tools such as Jira and GitHub Copilot optimizing processes such as test automation and code generation. However, ethical and technical challenges, such as algorithmic bias and the potential erosion of human collaboration, require attention. The adoption of agile methodologies in Electronic Engineering is still in its infancy compared to pure software development, due to barriers such as hardware-software integration and strict compliance requirements. The analysis identified gaps in literature, such as the scarcity of studies on agile in hardware and highly regulated environments, as well as opportunities for future research, such as the combination of agile with DevOps and IoT. This work contributes to the field by mapping the scientific literature on the topic, highlighting emerging trends, and proposing directions for further research. Limitations include the restriction to specific databases and the quantitative nature of the analysis, suggesting the need for complementary qualitative studies. Wed, 08 Apr 2026 00:00:00 GMT https://repositorio.ufu.br/handle/123456789/50161 2026-04-08T00:00:00Z https://repositorio.ufu.br/handle/123456789/49965 Title: O impacto da pandemia COVID-19 no setor de telecomunicações do Brasil: uma análise a partir dos principais serviços: telefonia fixa, telefonia móvel pessoal, TV por assinatura e banda larga fixa Abstract: The COVID-19 pandemic, which began in late 2019 and spread globally in 2020, transformed life as we know it. Containment measures, such as social isolation and the shutdown of non-essential activities, led to significant changes in how we live, work, and communicate. In Brazil, these changes were acutely felt in the Telecommunications sector, which faced unprecedented demand. This study aims to analyze the impact of the COVID-19 pandemic on Brazil's Telecommunications sector, with a particular focus on the main services offered: fixed-line telephony, mobile telephone services, Pay-TV, and fixed-line broadband. Each of these services faced unique challenges and opportunities during the crisis, offering a new view into how the pandemic reshaped the sector. Mobile telephone services, for instance, became a crucial tool for many, enabling continuous communication during a time of physical distancing. Pay-TV saw increased demand as people turned to entertainment at home. Fixed line broadband, in turn, became essential for remote work and online learning. However, the surge in demand also presented significant challenges. Networks were pushed to their limits, leading to issues with service quality and accessibility. Service providers had to adapt quickly to meet this new demand, often investing in infrastructure and innovation. Wed, 04 Jun 2025 00:00:00 GMT https://repositorio.ufu.br/handle/123456789/49965 2025-06-04T00:00:00Z https://repositorio.ufu.br/handle/123456789/49679 Title: Uma Análise Detalhada do Funcionamento de QR Codes Fri, 20 Mar 2026 00:00:00 GMT https://repositorio.ufu.br/handle/123456789/49679 2026-03-20T00:00:00Z https://repositorio.ufu.br/handle/123456789/49651 Title: Análise paramétrica e projeto de superfícies seletivas em frequência para aplicações na banda n78 do 5G Abstract: This work presents a parametric analysis and the design of Frequency Selective Sur- faces (FSS) aimed at operation in the n78 band (3300 to 3800 MHz) of 5G telecom- munications networks. The main objective of this study is to evaluate how variations in the geometric parameters of different metallic scatterers and the properties of dielectric substrates influence the performance and electromagnetic response of these structures. To circumvent the high computational cost of full-wave simulations during the synthesis phase, an iterative analytical simulator named "FSS Explorer"was developed, based on the Equivalent Circuit Model (ECM). Through this software, two distinct topologies of band-stop elements were analyzed and optimized: Square Loop and Jerusalem Cross, aiming to tune the fundamental resonance frequency to 3.55 GHz over various commercial laminates. The design validation was performed through cross-comparison of the analytical data with rigorous simulations in the Ansys HFSS software. The results attest to the excellent predictive accuracy of the analytical equations in determining the center frequency, especially in elementary geometries such as the Square Loop, consolidating the co-simulation methodology and the developed tool as highly efficient instruments for reducing the time and computational effort in the pre-design of spatial filters for 5G. Thu, 30 Jul 2026 00:00:00 GMT https://repositorio.ufu.br/handle/123456789/49651 2026-07-30T00:00:00Z