A5021459487- Adsorption and biosorption for pollutant removal
- Multimedia Communication and Technology
- Forest Biomass Utilization and Management
- Lignin and Wood Chemistry
- Image and Video Quality Assessment
- Linguistics and Language Studies
- Dyeing and Modifying Textile Fibers
- Pigment Synthesis and Properties
- Linguistics and Education Research
- Recycling and utilization of industrial and municipal waste in materials production
- Thermochemical Biomass Conversion Processes
- Video Coding and Compression Technologies
- Iron oxide chemistry and applications
- Clay minerals and soil interactions
- Municipal Solid Waste Management
- Professional Masters Programs Analysis
- Materials Engineering and Processing
- Network Traffic and Congestion Control
- Enzyme-mediated dye degradation
- Intelligent Tutoring Systems and Adaptive Learning
Universidade de Caxias do Sul
2004-2020
A lignin sample was extracted from Eucalyptus grandis sawdust, by the Klason method, and used as adsorbent for removal of methylene blue (MB) aqueous solutions. By using a set complementary analytical tools, appeared to be constituted oxygenated functional groups aromatic moieties, while showing specific surface area 20 m2 g−1 polydisperse particles. Different experimental conditions with various solid liquid ratio, pH, well other external parameters were investigated MB sample. The...
A magnetic adsorbent was prepared through chemical precipitation using a solution of iron salts and halloysite clay. The obtained material then characterized subsequently applied in the removal malachite green (MG) dye. pseudo-second-order model found to explain adsorption kinetics most effectively, while equilibrium well fitted with Freundlich isotherm model. data also suggest that MG dye spontaneous exothermic, involving physisorption. Moreover, can be easily separated from aqueous medium...
Sistemas Tutores Inteligentes (STI) constituem-se, atualmente, em uma área interdisciplinar que investiga como representar modelos de conteúdo instrucional baseado decisões pedagógicas consideram as interações dos estudantes. Normalmente, estas são estruturadas a partir da modelagem do estudante, regras representam o conhecimento domínio, um especialista e estratégias ensino. Entretanto, maioria STIs preconiza inferência nível necessidade estudante através feedback exercícios atividades...
In this paper, we describe an approach for quantify video quality to be used by QoS adaptation mechanisms. The is quantified according users' perspective subjective measures. We also propose alternative reducing the measures cost.
Este artigo apresenta uma abordagem baseada em Deep Learning para mapear automaticamente problemas trigonométricos modelos de equações, como parte um projeto maior Sistema Tutor Inteligente na área da Trigonometria. Esta traduz diretamente matemáticos equações usando modelo Rede Neural Recorrente (RNR), combinando baseado conhecimento linguístico tratar o contexto trigonométrico. Foram conduzidos experimentos Chatbot a interação com os alunos.
In this paper, we describe a framework to construct function used in multimedia distribution tool with user-driven QoS control. The stream throughput control is based on whose parameters are bit rate, level and quality. Our results show that (1) actual quality measures needed order confirm or deny assumptions about video quality; (2) some application have much greater influence as whole than others; (3) not proportional rate; (4) different levels can provide the same rate.