A5076703526- Microwave Dielectric Ceramics Synthesis
- Advanced Chemical Sensor Technologies
- Microfluidic and Capillary Electrophoresis Applications
- Nuclear materials and radiation effects
- Magnetic Bearings and Levitation Dynamics
- Innovative Microfluidic and Catalytic Techniques Innovation
- Advanced Measurement and Detection Methods
- Spectroscopy and Chemometric Analyses
- Agricultural and Food Sciences
- Tribology and Lubrication Engineering
- Periodontal Regeneration and Treatments
- Magnetic and transport properties of perovskites and related materials
- Science and Education Research
- Transition Metal Oxide Nanomaterials
- Fiber-reinforced polymer composites
- Advanced Condensed Matter Physics
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Additive Manufacturing Materials and Processes
- Electrical and Thermal Properties of Materials
- Transport Systems and Technology
- Logistics and Infrastructure Analysis
- Mechanical Engineering Research and Applications
- Thermal and Kinetic Analysis
- Engineering Technology and Methodologies
- Soil, Finite Element Methods
Universidade Federal de Viçosa
2013-2024
Universidade Federal de Minas Gerais
2012
Universidade Federal de São Carlos
2003-2005
Universidade de São Paulo
2003
Since its inception in the 80's, capillary electrophoresis has matured into a well-established separation technique, actually encompassing family of electrodriven techniques with distinct mechanisms and selectivity, performed single column. In this work, versatility handling materials from diversity chemical classes complex sample matrices is illustrated by representative applications clinical, forensic, cosmetological, environmental, nutritional pharmaceutical areas, grouping together our...
A regeneração tecidual guiada (RTG) utiliza membranas para favorecer a dos tecidos periodontais danificados pela doença periodontal. As usadas ainda apresentam limitações, principalmente quanto à capacidade de manter o espaço do defeito. Dois biomateriais origem brasileira, hidroxiapatita (HAP) e polihidroxibutirato (PHB), foram utilizados fabricar rígidas RTG, contendo 25, 35 ou 50% HAP em matriz PHB pelo método moldagem por injeção. apresentaram alta cristalinidade, sendo que,...
Photoacoustic spectroscopy was used to obtain optical properties of edible soybean, canola and olive oils as well evaluate the oil modifications induced by thermal treatment. The normalized photoacoustic signal intensity its phase were independently measured a function wavelength radiation source. samples heated up smoke point then for additional 30 min in order degrade them. After, cooled down measurements conducted absorption spectra at both degraded non-degraded conditions. Comparisons...
Espectroscopia fotoacústica foi utilizada tanto para obter algumas propriedades ópticas de óleos soja, canola e oliva quanto avaliar as alterações ocorridas devido ao tratamento térmico dos
The study of rotor unbalancing is essential for safety and reliability in the design machinery other mechanical structures with rotating parts. By understanding dynamic behavior effects unbalanced components, engineers can address this issue establish a maintenance program to safeguard systems from excessive vibrations prevent catastrophic failures, primarily due fatigue. Balancing one two planes most common procedure correct masses In work, aim advance mass distribution irregular-section...
In the present era, high technology wireless communication and mobile systems require advanced ceramics as frequency dielectric resonators. work we have produced Ba2MgWO6 (BMW) studied its structural, microstructural mechanical properties. belong to Ba2MgTaO6 (BMT) Ba2ZnTaO6 (BZT) family, which is well known ceramic material for technology. There little information available on materials characteristics of BMW ceramics. Structural were by X-ray diffractometry. Microstructural scanning...
In high technology industries ceramics have several uses, especially at temperature, e.g. inert crucibles, electrodes and catalysts. We are working on production development of new oxide ceramics, based complex cubic perovskite structure, for fabrication crucibles metallurgical applications. the present work, we produced studied sintering behavior a ordered ceramic Ba2HoWO5.5. Microstructural characteristics Ba2HoWO5.5, sintered between 1200 to 1400°C 48h, were by scanning electron...
To cut metals, the oxycut process uses a preheating flame, usually composed of oxygen and combustible gas, in addition to flame-independent jet oxygen. In present work, partially premixed combustion model finite volume-based software was applied analyze flame temperature cutting tip acetylene. At torch inlet boundary, flow rates acetylene were adjusted sweep wide range fuel-oxygen ratio. The results pointed peak surrounding stoichiometric ratio, at 3106 °C for literature 2650.93 numerical...
Neste estudo foi realizada uma análise da caldeira flamotubular horizontal, com ante fornalha e grelha aquatubular, de categoria B, movida a combustível sólido (toras madeira). Essa possui capacidade produção 2500 kgV/hora, Pressão Máxima Trabalho Admissível (PMTA) 833,56 kPa teste Hidrostático (PTH) 1.250,34 está instalada em fábrica laticínios situada na cidade São Geraldo – MG. Esse trabalho teve como objetivo principal eficiência térmica, levando consideração os métodos diretos...
We observe commonly disturbances in rotating machinery elements when driven to rotate. These present themselves as a displacement or trepidation caused by unbalanced masses. The occurrence of balancing depends on eccentricity present, which means that the center mass and element are not coincident. presence these forces - whose magnitude is proportional eccentricity, mass, angular velocity squared results severe vibrations can overload bearings with catastrophic consequences. main origin...
A competição SAE Brasil AeroDesign, é um evento que ocorre desde 1999 na cidade de São José dos Campos, visando através uma avaliar projetos e construção aeronaves por alunos Engenharia universidades Brasileiras do Exterior. As devem apresentar elevada eficiência estrutural carregar a máxima carga possível, obedecendo às restrições projeto da competição. Um componentes estruturais das o Trem Pouso, devendo propriedades como rigidez robustez, mas também boa relação entre peso resistência....