https://repositorio.unifei.edu.br/jspui/handle/123456789/65 2026-10-09T23:41:02Z 2026-10-09T23:41:02Z https://repositorio.unifei.edu.br/jspui/handle/123456789/3173 2024-02-05T10:36:02Z 2022-02-17T00:00:00Z

Aquisição e validação de sinal de ruído eletroquímico Corrosion is a global problem, which implies costs in industrialized countries of up to 4.5% of GDP, with either economic, but also social and environmental impacts. In the case of Brazil, the waste of water supply networks due to leaks loss is quite significant and much of it is caused by network degradation, indicating that corrosion control should be promoted whenever possible. This study proposes a corrosion monitoring system, in system subject to the use of inhibitor, with the approach of passive technique for monitoring corrosion by electrochemical noise (EN), in which the classification of events in a corrosion sensor by EN is part of methodological study for structural integrity (or “health”) monitoring system (SHM). Due to very dynamic and stochastic nature of the signal, this study and analysis of EN measurements (ENM) considers numerical and graphic characteristics of two corrosion systems both in saline aqueous solution: carbon steel and stainless steel. These experiments are repeated for accumulating data, which allow the generation of several graphs in time and frequency domains, from which at least one characteristic is extracted, which has a good correlation with data from corrosion processes. Then, based on a supervised machine learning system, the training data allows the model to be calibrated. From the test data, the correctness rate of the model above 50% is verified. Dissertação

2022-02-17T00:00:00Z https://repositorio.unifei.edu.br/jspui/handle/123456789/4484 2026-10-09T19:13:32Z 2026-07-27T00:00:00Z

Pipeline de prospecção de leads: descoberta do cliente, qualificação com lead scoring (ICP) orientado a customer success com apoio de IA generativa e IAPAAS Client prospecting and lead qualification in website development projects often rely on informal processes, resulting in ambiguities in requirement elicitation, customer understanding, and decision-making. In this context, this research investigates how Generative Artificial Intelligence can support Customer Discovery and lead qualification activities aligned with Customer Success principles. A Design Science Research (DSR) approach combined with a Systematic Literature Review was adopted to support the design and evaluation of a technological artifact. As a result, an AI-supported prospecting pipeline was proposed and implemented, comprising Generative AI conversational agents, iPaaS integrations, and lead qualification mechanisms responsible for lead qualification, needs diagnosis, proposal generation, sales support, and follow-up activities. The pipeline was integrated through iPaaS platforms and evaluated with specialists and graduate students representing potential users. The results indicated positive perceptions regarding the pipeline's ability to support needs identification, structure relevant information for commercial processes, and improve understanding of customer objectives. The findings suggest that the proposed approach has the potential to assist web development professionals and small digital service businesses in conducting more structured customer discovery and lead qualification processes. The main contribution of this research is the demonstration of how Generative AI agents can be applied to early-stage customer interactions by integrating Customer Discovery, Lead Scoring, and Customer Success concepts into a unified prospecting pipeline. Dissertação

2026-07-27T00:00:00Z https://repositorio.unifei.edu.br/jspui/handle/123456789/4483 2026-10-09T18:16:52Z 2026-05-21T00:00:00Z

Uma ferramenta baseada em inteligência de negócios para apoio à gestão acadêmica dos cursos de graduação da Universidade Federal de Itajubá This research investigated the feasibility of developing and implementing a Business Intelligence (BI) solution to support the academic management and control of idle vacancies in undergraduate courses at the Federal University of Itajubá (UNIFEI). To understand the research context, a systematic mapping study was initially conducted, identifying trends and challenges faced by Higher Education Institutions (HEIs) globally. The adopted methodology was Action Research, structured into five phases: planning, data collection, analysis, implementation, and evaluation. The requirements elicitation stage used participant observation and interviews with stakeholders, and the data was processed through qualitative analysis. After data analysis and action planning, the architecture and model of the solution were defined. The tool was developed using Python and other open-source technologies, and was named GABI Uni. In the evaluation, time and operational effort were measured, comparing the manual process to the automated one. A questionnaire based on the Technology Acceptance Model (TAM) was also applied to assess the perceived usefulness and ease of use. The results demonstrated a significant efficiency gain, with an approximately 95% reduction in the time required to identify idle vacancies. The perception of the voluntary participants revealed a high acceptance of the solution. Additionally, the system acted as a diagnostic instrument, highlighting inconsistencies in the primary data input. It is concluded that the tool is feasible and effective, promoting the modernization of managerial processes and equipping the institution for evidence-based management. Dissertação

2026-05-21T00:00:00Z https://repositorio.unifei.edu.br/jspui/handle/123456789/4482 2026-10-09T14:32:27Z 2026-07-10T00:00:00Z

Propostas desenvolvimentistas e proteção ambiental: o caso do Programa Minas Livre para crescer The Minas Livre para Crescer (MLPC) Program, implemented in the state of Minas Gerais, aims to reduce bureaucracy and stimulate economic growth by simplifying and making administrative processes more flexible. Development-oriented proposals such as this program must be viewed with caution, as they may compromise environmental protection and may even be linked to anti-environmental actions. Thus, this study aims to assess the impacts of the MLPC on environmental protection in the state of Minas Gerais. A qualitative, exploratory, documentary, and bibliographic approach was adopted to: map and describe the legal framework surrounding the program, evaluate the regulatory guidelines, and identify potential effects of the program’s implementation on environmental protection, and to critically analyze the regulatory guidelines and the effects of their implementation in light of the foundational principles of environmental law and the debate on sustainable development and anti-environmentalism. The results revealed that the MLPC is embedded in a broad regulatory framework guided by the principles of economic freedom, administrative simplification, and reduced state intervention. Analysis of the guidelines associated with the program highlighted potential benefits related to administrative efficiency and the reduction of bureaucracy, but primarily the risks of weakening mechanisms for environmental control, enforcement, and prevention. In light of the principles of environmental law, sustainable development, and the debate on anti-environmentalism, it was found that these guidelines produce ambivalent effects, revealing tensions between the promotion of economic development and the maintenance of environmental protection safeguards. Based on the findings and the discussion presented, this study demonstrated the importance of improving public policies and legislation to reconcile social and economic development with environmental protection, emphasizing the need to critically analyze the effects of development-oriented actions on the environment. Dissertação

2026-07-10T00:00:00Z