https://ri.ufs.br/jspui/handle/riufs/2547 2026-05-01T03:00:17Z https://ri.ufs.br/jspui/handle/riufs/23576 Título: Desenvolvimento de um sistema integrado de preparação e análise de grãos e sementes via impressão 3d para agricutura familiar Autor(es): Cunha, José Inácio Santos Abstract: The increasing demand for agricultural production in Brazil highlights the need for lowcost alternatives for seed quality analysis, especially for small farmers, justifying the development of this project. The objective was to build a portable device integrating a diaphanoscope and a grain divider using FDM 3D printing technology. The prototype was designed in SolidWorks, printed with PLA and ABS, assembled in the laboratory, and aimed at enabling visual analysis of mechanical seed damage and homogenization of seed samples; parameters such as light uniformity and sample division efficiency were established in the testing protocol. The equipment showed proper assembly, lightness, functionality, and a total cost of around R$ 700.00 — significantly lower than commercial equipment — with potential for identifying cracks and internal seed damage; however, practical performance tests have not yet been conducted. It is concluded that the prototype is ready for practical validation, and further testing with different seeds and environments is recommended. 2025-05-28T00:00:00Z https://ri.ufs.br/jspui/handle/riufs/23527 Título: Planta didática para monitoramento e controle de nível em tanques acoplados com sensores de baixo custo Autor(es): Barros, Adson Andrade Abstract: Liquid level monitoring and control is an important action for automated processes in agricultural systems, such as irrigation and fertigation, avoiding problems such as overflows and unexpected production shutdowns, and ensuring the safe continuity of operations. This work presents the development of a teaching system for level monitoring between two tanks, using digital float switch level sensors, analog ultrasonic level sensors, and three actuators: two 19W, 12V DC pumps and a 12V DC solenoid valve. An Arduino UNO microcontroller was used to manage all communication between the devices, calibrate the instrumentation, and automate level control between the two tanks. A graphical interface was also developed in SCADA software to facilitate automatic visualization and control of the teaching system by a human operator. The main objective of this work was to create a teaching system for communication between two tanks to facilitate the monitoring and control of fluid levels in both tanks, thus preventing liquid overflow and pumps from running dry. The idea is that the teaching system will serve as a bench-scale tool for theoretical and practical observations of fluid dynamics between two tanks of different heights, with the liquid flows generated by pumps. Several tests were performed, and the results showed that the integration of all components and systems worked, enabling practical study of fluid dynamics. The programmed interlocks prevented overflows in both tanks and prevented the pump from running dry—that is, without water in the piping, below the minimum level. The prototype demonstrated its potential and usefulness, paving the way for several future projects, whether in the diversification of automation or in level and/or flow control between the two tanks. It provides a favorable environment for practical testing and for observing theoretical studies, particularly regarding fluid dynamics between two tanks. It is hoped that these studies and implementations will, in the future, contribute to the pursuit of greater water efficiency and safety in liquid management. 2025-08-11T00:00:00Z https://ri.ufs.br/jspui/handle/riufs/22402 Título: Concepção de alinhador e engate rápido para barra de tração do trator Autor(es): Rezende, Milena Luiza Lima de Abstract: Agricultural mechanization has been essential in promoting greater efficiency, safety, and productivity in the field. However, operations such as hitching and unhitching implements to the tractor drawbar are still performed manually on many farms, leading to operational risks and time losses. This work proposes the conceptual development of a quick hitch device with an automated aligner for agricultural tractors, based on a design methodology that allows revisions and iterations with previous stages for corrections and improvements when necessary, in compliance with Regulatory Standard NR 31. Technologies such as directional valves, electro-hydraulic, electropneumatic, and electric actuators were explored with the goal of eliminating the need for manual operator intervention. The results indicate a feasible solution adaptable to different tractor models, which can significantly improve ergonomics, safety, and the standardization of agricultural operations. The study also highlights the importance of innovation in the field through automation and the use of structured product development methodologies. 2025-05-19T00:00:00Z https://ri.ufs.br/jspui/handle/riufs/22401 Título: Influência das fontes hídricas nas características agronômicas e microbiológicas da cultura do repolho roxo (Brassica oleracea var. capitata f. rubra) irrigado com água de abastecimento humano e efluente tratado Autor(es): Santana, Fabiano Santos Abstract: The scarcity of the planet's water has been provoking debates and research in the search for alternatives to face this problem. The use of treated wastewater for irrigation has been shown to be a viable alternative, as it presents significant results in relation to water consumption and in the awakening of the collective consciousness for the responsible treatment of the planet's finite goods. Thus, this work aims to analyze the use of effluents in agronomic characteristics and to verify the microbiological characteristics of cabbage (Brassica oleracea var. Capitata f. rubra) and the viability for human consumption. The research was developed in a protected environment, located at the Federal University of Sergipe. The experimental design was in Entirely Randomized (DIC), consisting of 3 treatments (T1: irrigated 100% with drinking water from the Sanitation Company of Sergipe – DESO; T2: irrigated with 50% of drinking water from the Sergipe Sanitation Company – DESO and 50% with effluent; T3: 100% irrigated with effluent) and 15 replicates of each treatment totaling 45 pots. It was observed that the use of wastewater influenced the agronomic characteristics of the cabbage crop (fresh mass and dry mass), with the exception of the variable head diameter. The results of the microbiological characteristics met the standards with absence for Salmonella and values below for Escherichia coli. 2025-01-01T00:00:00Z