A5029709354- Academic Research in Diverse Fields
- Agricultural and Food Sciences
- Business and Management Studies
- Environmental Sustainability and Education
- Finance, Taxation, and Governance
- Education and Digital Technologies
- Welding Techniques and Residual Stresses
- Orthopaedic implants and arthroplasty
- Human Rights and Immigration
- Administrative Law and Governance
- Recycling and Waste Management Techniques
- Natural Fiber Reinforced Composites
- Occupational Health and Safety in Workplaces
- Titanium Alloys Microstructure and Properties
- Aluminum Alloy Microstructure Properties
- Logistics and Transportation Systems
- Business, Innovation, and Economy
- Advanced Welding Techniques Analysis
- Education Pedagogy and Practices
- Corporate Taxation and Avoidance
- Quality and Supply Management
- Ergonomics and Musculoskeletal Disorders
- Advanced materials and composites
- Botanical Research and Applications
- Mechanical Failure Analysis and Simulation
Universidade do Estado do Amazonas
2016-2024
Universidade do Porto
2020-2024
American Society For Testing and Materials
2024
Amazon (United States)
2024
Hospital Adventista Silvestre
2022
Brazilian Institute of Environment and Renewable Natural Resources
2022
Universidade Estadual da Região Tocantina do Maranhão
2022
Centro Universitário do Norte
2017
Este artigo foca na adequação ergonômica do mobiliário escolar escola Alpha, analisando como este atende às necessidades antropométricas e posturais dos estudantes. Avalia-se o impacto no conforto processo educativo, alinhando-se normas ABNT para escolar. Utilizou-se uma abordagem quali-quantitativa, aplicada descritiva, com coleta de dados antropométricos alunos através questionário Google Forms®. Analisaram-se as NBR 14006/2022, 16671/2018, 9050/2020, usando software Ergolândia® estimativa...
Os óleos essenciais são compostos voláteis extraídos de diversas partes das plantas e desempenham um papel importante na medicina tradicional indústria, especialmente Amazônia. No Brasil, a exploração desses é historicamente significativa, destacando-se produção andiroba, breu-branco, buriti copaíba. Esses possuem uma ampla gama propriedades terapêuticas, como ação anti-inflamatória, antimicrobiana, antioxidante cicatrizante, além aplicações em cosméticos indústria farmacêutica. A recursos...
Cobalt-chromium-molybdenum (Co-Cr-Mo) alloy is a material recommended for biomedical implants; however, to be suitable this application, it should have good tribological properties, which are related grain size. This paper investigates the behaviour of Co-Cr-Mo produced using investment casting, together with electromagnetic stirring, reduce its The samples were subjected wear and scratch tests in simulated body fluid (Ringer's lactate solution). Since reduction size can influence material,...
This study investigates the tribocorrosion performance of a cast Co-Cr-Mo alloy prepared using casting and electromagnetic stirring (EMS) at specific frequencies. The behaviour was evaluated when exposed to Ringer's lactate solution optimize EMS parameters improve its properties. research focuses on biomedical implant applications explores how affects wear corrosion resistance. As did friction coefficient volume, rate samples produced with frequencies 75 Hz 150 decreased. These improvements...
The development of biomaterials, particularly metallic ones, is one the focuses scientific community, mainly due to an increase average life expectancy and improvement casted materials combined with better mechanical properties defect-free products. use cobalt alloys in applications, such as knee, hip, dental prostheses, result their good ability maintain biocompatibility over long periods use. Numerical methods are becoming more important, they help product a faster economic way. This work...
The natural fiber market has been growing extraordinarily. Hereupon the current work presents of periquiteira tree Cochlospermum orinocense Amazon forest. chemical composition, physical aspects, morphology, thermal and mechanical properties this will be discussed. stability samples was about 200 °C. decomposition cellulose hemicelluloses in fibers occurred at 300 ºC above, while degradation happened above 400 This had good specific strength binding due to their low weight presence high...
Solid residues from agroindustry often accumulate and cause environmental imbalance. An alternative to this is use residue as a reinforcement in polymers. The achievement of work was characterize composite with polystyrene matrix reinforced Brazil nut shells residues. were cleaned ground then produce the samples via injection molding proportions 0%, 2.5% 5% load. specimens characterized using mechanical tensile testing thermogravimetric analysis (TGA). test showed that filler had greater...
Welding is a manufacturing process that aims to create permanent joint between two components using parameters such as heat, pressure, or energy. It currently one of the most widely used processes in industry and there are no concerns about safety products produced. gases responsible for protection weld pool stability electric arc, which directly affects quality final properties weld. The aim this study was evaluate current conditions welding large company Manaus Industrial Pole (PIM),...
Este estudo analisa a adequação ergonômica do mobiliário utilizado por funcionários de uma biblioteca universitária, avaliando seu impacto no conforto, na saúde ocupacional e conformidade com as normas técnicas ergonomia. A coleta dados, realizada pelos autores, incluiu medições antropométricas dos dimensões mobiliário. Os dados foram comparados às especificações das ABNT NBR 13966 13962, que regulamentam o design móveis para escritórios. resultados indicaram inadequações significativas nas...
This work aims to show the ores that are explored in Amazon, history of mining Brazilian its challenges, both technological and logistical, applications industry new perspectives for sustainable exploration such a threatened coveted ecosystem.
The present work aims at the preliminary evaluation of Paspalun repens macrophyte dry biomass adsorbent material zinc (Zn) and copper (Cu) metals from water. diversity Species is due to extensive aquatic environment where it inserted. species comes Buiuçu lake located in region Parintins-Amazonas- Brazil. was dried a mill then digestion through microwaves done before after its exposure solutions containing different concentrations (1.00, 1.50, 2.00, 3.00 mg mL-1 metals) for period 48 hours....
With the growth of fleet vehicles in recent years, it becomes essential to know quality most used automotive lubricating oils on market.The aim this research was analyze performance synthetic and semi-synthetic lubricants Shell brand, oil 5W-40 10W-40, both had same SAE viscosity 40, On packaging.Through experimental observations laboratory tests engine a Gol City type 1.6 2014 Flex-type car that traveled 5,000 km with each oil.The question is relevant since many consumers do not have...
In order for a company to become competitive and stable in the market, it is advisable that has capacity adapt with constant improvements of technological evolution, making them able meet specifications needs market.This case study aims highlight Santa Terezinha Farm egg classification process, using automation as tool, well demonstrate increase productive efficiency previous process.The methodology applied this work was an exploratory descriptive research, which distributes detail process...
first_page settings Order Article Reprints Font Type: Arial Georgia Verdana Size: Aa Line Spacing: Column Width: Background: Open AccessAbstract Development and Characterization of Bulk Epoxy Molding Compounds from Non-Metallic Fractions Recovered Printed Circuit Boards † by Márcia Silva 1, Raimundo 2, Paulo Nóvoa 3, Helena M. V. Soares Margarida S. Bastos 4 António Marques 3,* 1 REQUIMTE/LAQV, Department Chemical Engineering (DEQ), Faculty Engineering, University Porto, Rua Roberto...
In view of the current scenario found in factory as to effective removal printed circuit board from production conveyor and realizes connection HDMI, RCA, power USB connector cables manually perform receiver test, taking into account View time required make cable connections considered high within context.Considering wasted on test receiver, this case study seeks implement a solution more efficiently optimizing process.This research has its aim seek an improvement for digital manufacturing...