A5012459315- Biodiesel Production and Applications
- Spectroscopy and Chemometric Analyses
- Economic and Environmental Valuation
- Atmospheric chemistry and aerosols
- Spectroscopy Techniques in Biomedical and Chemical Research
- Atmospheric and Environmental Gas Dynamics
- Fire effects on ecosystems
- Vehicle emissions and performance
- Air Quality and Health Impacts
- Environmental and biological studies
- Environmental Sustainability and Education
- Forest ecology and management
- Urban and sociocultural dynamics
- Energy, Environment, Economic Growth
- Air Quality Monitoring and Forecasting
- Water Quality Monitoring and Analysis
- Lubricants and Their Additives
- Conservation, Biodiversity, and Resource Management
- Social and Economic Solidarity
- Linguistics and Education Research
- Geography and Environmental Studies
National Institute for Space Research
2022-2023
Universidade do Estado do Rio de Janeiro
2015-2021
Amazon forests are the largest in tropics and play a fundamental role for regional global ecosystem service provision. However, they under threat primarily from deforestation. Amazonia's carbon balance trend reflects condition of its forests. There different approaches to estimate large-scale balances, including top-down (e.g., CO 2 atmospheric measurements combined with transport information) bottom-up land use cover change (LUCC) data based on remote sensing methods). It is important...
Abstract The Amazon Forest is a major locus for carbon and water cycling in the climate system whose function has been degraded recent decades by land use change. Most studies of Amazonia’s balance have limited sparse sampling. We measured 742 atmospheric vertical profiles CO2 CO over four regions Amazonia from 2010 through 2020. estimate that emissions increased 0.24±0.19 PgC y-1 2010-18 to 0.44±0.22 2019 0.52±0.22 During these years, increases were also observed deforestation (79% 74%)...
This study evaluates the impact of biofuels on air quality city Rio de Janeiro using an model based trajectory OZIPR associated with SAPRC chemical model. The results show that increase in biodiesel use reduces ozone levels atmosphere by 10.2 %, Biodiesel Ethanol and Diesel mixture (BE-Diesel), 5.28 B20 only 0.33 % B10. An was observed NOx emissions 5.66 2.83 for BE-Diesel B20, respectively. low are attributed to its consumption NO. CO concentration reductions BE-Diesel, B10 were 13.11, 6.56...
This work aims to develop an auto-machine learning method using Mid-Infrared (MIR) spectroscopy data determine the cold filter plugging point (CFPP) and kinematic viscosity at 40 ºC of biodiesel, diesel, mixtures samples. The biodiesel was obtained by transesterification reaction later purified. first dataset composed 108 blends (biodiesel from different biomass such as soy, corn, sunflower, canola) with binary, ternary quaternary mixtures. second 227 diesel-biodiesel...
As previsões da massa específica e do índice de refração biodiesel podem ser feitas por regressão mínimos quadrados parciais (PLS) usando os espectros infravermelho médio (Mid-IR). Os bancos dados foram obtidos com Mid-IR as medidas de: para amostras canola, girassol, milho soja. Foram utilizados seguintes tipos pré-processamentos: centralização na média, 1ª derivada variação padrão normal. Para a avaliação modelo PLS previsão determinados parâmetros mérito: o coeficiente determinação (R
The Amazon is the largest rainforest on planet and was an important carbon sink. sink declining, mainly due to increase in tree mortality as a result of deforestation, degradation, local, regional global climate change. In addition, deforestation forest degradation reduce ability act CO2 Vertical Profiles (VP) were performed from 2010 2021 (805), using small aircraft at 4 locations: SAN (2.86° S 54.95° W), ALF (8.80° 56.75° RBA (9.38°...