Comunidades no DSpace
Selecione uma comunidade para navegar por suas coleções
- Campus Samambaia, Campus Colemar Natal e Silva, Campus Aparecida de Goiânia.
Submissões Recentes
Item type: Item , Formulação por balanço de correntes de barra para a solução do problema do fluxo de carga de redes de distribuição(Universidade Federal de Goiás, 2025-12-03) Martins, Thácio Breno Silva; Brigatto, Gelson Antônio Andrêa; Brigatto, Gelson Antônio Andrêa; Garcés Negrete, Lina Paola; Kopcak, IgorThe classic formulation of the Load Flow Problem is based on calculating the power balance of buses in the electrical system under study and relies on obtaining the roots of residual power equations, whose solution needs to be obtained by iterative methods due to the non-linear nature of the equations. This Final Course Project aims to develop an alternative formulation for solving the Load Flow Problem of distribution networks, based on calculating the bus current balance and its solution by the Newton-Raphson Method based on obtaining the roots of residual current equations. The number of iterations and processing times are adopted as computational performance criteria for evaluating the developed formulation and comparing it with the classic Newton-Raphson method by power balance and the Sum of Currents, Sum of Powers, and Direct Load Flow methods. Distribution networks known from the literature are employed as test systems for evaluating and comparing performance based on normal operation and the limiting situation of system stability loss.Item type: Item , Morfogênese computacional aplicada à arquitetura: ensaios projetuais biomiméticos para um pavilhão na Praça do João Francisco na Cidade de Goiás(Universidade Federal de Goiás, 2025-12-09) Ribeiro, João Pedro Silva; Góes, Thiago Montenegro; Góes, Thiago Montenegro; Moreira, Fernanda; Lopes, Adriano Felipe OliveiraThis work explores the potential of computational morphogenesis applied to architecture, with an emphasis on biomimetic design tests aimed at the development of a pavilion for João Francisco Square, in the city of Goiás. The main objective was to investigate how contemporary digital tools can improve the creation of adaptive forms, integrating environmental, structural and contextual parameters, going beyond traditional design methods. The methodological approach is based on the Performance-Based Design strategy, enhanced by detailed morphological analysis and the application of adaptive and generative algorithms. The choice of the theme is justified by the fact that it is a design method still little explored in architecture and design, where the form is not pre- conceived, but generated or found with the help of computation, enabling an adaptive study closer to the field of biology, specifically through biomimetics, which integrates graphic representation and criteria of occurrences external to the building, in addition to its automation, configuring morphogenesis as a performance algorithm. Initially, an extensive theoretical foundation was carried out, covering the historical evolution of digital design in architecture, from manual representation to current computational modeling. The research critically addressed the relationship between architecture and nature, highlighting the concepts of biomimicry and bioinspiration, which offer evolutionary principles applicable to the development of sustainable, regenerative and resilient solutions. Then, repertoire studies extracted from the Institute of Advanced Architecture of Catalonia (IAAC) were analyzed, emphasizing processes and methodologies used to achieve tests. Subsequently, design tests began, which involved the use of advanced parametric modeling techniques and evolutionary algorithms, particularly with the help of Rhinoceros® and Grasshopper® software, integrated with the Ladybug plug-in for environmental simulations. Responsive digital prototypes were developed, whose shape and performance were directly influenced by variables such as sunlight, ventilation and local constraints specific to the ecological area. The results obtained indicated significant improvements in the environmental and structural performance of the generated proposals, validating the effectiveness of the tools and methods applied. However, the research includes challenges and contradictions in the use of digital tools, highlighting the underutilization of their potential when disconnected from specific scientific criteria and critical design awareness. It also pointed out the need for greater social responsibility in the adoption of these technologies, avoiding purely formal or decontextualized approaches. Finally, the work concluded that computational morphogenesis offers extraordinary opportunities for architectural practice, as long as it is integrated with a conscious and socially committed methodology. The relevance of deepening the interdisciplinary dialogue between architecture, biology and computing is highlighted, ensuring more efficient, sustainable and socially accessible design solutions. innovative, responsive and effective results in different environmental and social contexts. These studies provided an essential critical and practical framework to support the subsequent designedItem type: Item , Acolher: Centro de Produção e Apoio aos Pequenos Produtores Rurais(Universidade Federal de Goiás, 2025-12-10) Nascimento, Camila Cardoso; Ramos, Gabriel Teixeira; Ramos, Gabriel Teixeira; Huguenin, João Paulo Oliveira; Melo, Júlia França deThis work proposes the development of a preliminary design for a Production and Support Center for Small Rural Producers in Itaberaí-GO. The objective is to foster the exchange of knowledge, improve the marketing conditions of local products, and strengthen sustainable agricultural practices, contributing to the social and economic development of the region. The choice of the theme is justified by the importance of family farming as an economic, social, and cultural base, especially in small and medium-sized cities. The proposal starts from a historical review of production models, highlighting the need for facilities that connect the urban and rural areas. In this way, the support center emerges as a strategic instrument to boost production, guarantee rights, encourage farmers to remain in the countryside in a dignified and sustainable manner, and preserve and value local culture. The result serves as a basis for the development of the architectural project, consolidating a space focused on training, marketing, and valuing local culture, in a harmonious and integrated way with the landscape and identity of the region.Item type: Item , The burden of pancreatic cancer in Latin America and the Caribbean: trends in incidence, mortality and DALYs from 1990 to 2019(2025) Silva, Diego Rodrigues Mendonça e; Oliveira, Max Moura de; Fernandes, Gisele Aparecida; Curado, Maria Paulamortality and disability-adjusted life years (DALYs), as well as the proportion of pancreatic cancer deaths attributable to behavioural and metabolic risk factors in Latin America and the Caribbean (LAC) countries. Methods: This study focuses on pancreatic cancer using the Global Burden of Disease 2019 study database. Results were described for 23 LAC countries for 1990–2019, evaluating their age-standardised incidence rates, mortality rates, DALYs, average annual percent change and the fraction of deaths attributable to behavioural and metabolic risk factors. Results: We observed that in LAC, pancreatic cancer incidence rates ranged from 1.2 in Haiti to 15.8/100,000 in Uruguay among men. The highest increase in incidence rate was observed in Trinidad and Tobago: 7.7% per year. The mortality rate was higher in Uruguay and lower in Haiti, for both sexes. The highest rise in the numbers of DALYs in 2019 was observed in Brazil and Mexico. The proportion of pancreatic cancer deaths attributable to smoking was reduced between 1990 and 2019 for both sexes in LAC countries; however, it increased for metabolic risk factors. Conclusion: The increasing trend in pancreatic cancer observed in LAC may be associated with a rise in risk factors such as high fasting plasma glucose and high body mass index in both sexes. This trend will likely have a substantial impact on the healthcare system in the coming decades.Item type: Item , The relationship between child overweight/ obesity and respiratory muscle strength and lung function considering sex, age, and maturity offset status(2025) Mello, Júlio Brugnara; Mello, Marcos Filipe da Silva; Silva, Iransé Oliveira; Mourão, Vitória Milhomem; Vieira, Lorena Alves; Silva, Maria Sebastiana; Silva, Pedro Henrique de Almeida; Soares, VivianeBackground Rates of overweight and obesity in children are increasing progressively worldwide, which can negatively impact chest mechanics and lung function. However, children at different stages of growth may be impacted differently by obesity, highlighting the need to assess maturation status related to body growth, as the maturity offset. Objective To investigate the effect of body mass index (BMI) on respiratory muscle strength (RMS) and lung function in children, considering maturity offset status as a covariate. Methods This cross-sectional analytical study included 90 children aged 5–14 from two Brazilian public schools. BMI was calculated and converted into percentiles for age and sex to classify children as overweight/obese. RMS, including maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP), was measured through a digital manometer, and spirometry was used to assess lung function. The age-to-peak height velocity (APHV) formula was used to determine the maturity offset status. Data were compared between groups, and linear regression was used to examine the effect of BMI on RMS and spirometric variables, adjusted for sex, age, and maturity offset status. Results MIP (Δ= +14.12 cmH2O, p = 0.015) was higher in overweight/obese children. Regression models indicated a relationship between %MEP (β: 0.142; CI 95%: -1.163; 1.453) and BMI, considering age, sex, and maturity offset status as covariates. Conclusion Overweight/obesity was associated with higher inspiratory muscle strength and related to %MEP. This relationship was influenced by the covariates of age, sex, and maturity compensation status, indicating that anthropometric variables need to be considered in future studies.