A5005581992- Wood Treatment and Properties
- Forest ecology and management
- Spectroscopy and Chemometric Analyses
- Wood and Agarwood Research
- Tree Root and Stability Studies
- Agricultural and Food Sciences
- Thermochemical Biomass Conversion Processes
- Lignin and Wood Chemistry
- Cultural Heritage Materials Analysis
- Natural Fiber Reinforced Composites
- Advanced Cellulose Research Studies
- Forest Biomass Utilization and Management
- Bamboo properties and applications
- Energy and Environment Impacts
- Remote Sensing and LiDAR Applications
- Industrial Vision Systems and Defect Detection
- Material Properties and Processing
- Nanocomposite Films for Food Packaging
- Phytochemicals and Antioxidant Activities
- Plant Pathogens and Fungal Diseases
- Amazonian Archaeology and Ethnohistory
- Essential Oils and Antimicrobial Activity
- Plant Surface Properties and Treatments
- Leaf Properties and Growth Measurement
- Photovoltaic Systems and Sustainability
Universidade Federal de Lavras
2016-2025
Centro Universitário de Lavras
2021
Universidade Federal de Santa Maria
2018
Madeira Tecnopolo
2017
Instituto Federal de Educação, Ciência e Tecnologia de Minas Gerais
2017
Universidad de Flores
2015
Universidade Federal de Minas Gerais
2013
Centre de Coopération Internationale en Recherche Agronomique pour le Développement
2009-2012
Systèmes d’élevage méditerranéens et tropicaux
2009-2011
Universidade do Tocantins
2010
Abstract Many studies have successfully applied near infrared (NIR) spectroscopy to estimate important wood traits. Some of them reported the effects surfaces on NIR spectra information and their influence performance predictive model. However, limited is available concerning effect sample preparation model chemical properties in Eucalyptus wood. Hence, aim this study was investigate milling procedure, particle size, quality solid surface partial least squares regression predict urophylla by...
Scientific contributions have shown good results by using near infrared (NIR) spectroscopy as a rapid and reliable tool for characterising lignocellulosic materials. Many reports evaluated the predictive power robustness of NIR models means methods known to validate them. However, in most these investigations, samples were divided systematically into two non-independent groups: one group was used build other models. This approach does not adequately simulate real situation which properties...
RESUMO Uma forma alternativa para produção de fibrocimento é a extrusão, que permite entre muitas vantagens compósitos cimentícios com geometrias diferenciadas e requer baixo investimento inicial industrial. Nesse contexto,o objetivo desse trabalho foi obter micro/nanofibrilas celulósicas Eucalyptus avaliar o efeito da adição diferentes conteúdos dessas nas propriedades físico-mecânicas fibrocimentos envelhecidos naturalmente em ambiente climatizado. Micro/nanofibrilas produzidas...
Comparison between flexural wood strength values obtained from three-point and four-point bending tests in were only reported few previous works, but remains unclear. Thus, the aim of this study was to determine relationship (MOR) by 4-point 3-point Eucalyptus. Two or three specimens cut same scantling (thus considered as twin) submitted vibration tests. Then 190 tested 138 twin Wood determined test presented significantly higher mean value (76,8 MPa) than that (73 MPa). A linear regression...
Moisture is one of the most important wood properties because its variation directly influences material strength and density. Thus, aim this study was to develop near infrared (NIR) spectroscopic models in order estimate moisture content specimens. Moreover, predictive built from NIR signatures recorded by different acquisition methods on surfaces were compared discussed. Mass spectra measured forty (40) Eucalyptus specimens 10 steps during drying fiber saturated point anhydrous condition....
Abstract Solutions for species discrimination are important monitoring native timber harvesting. Near-infrared (NIR) spectroscopy has shown promise identifying wood in real time. The influence of moisture content on the model’s performance classifying is not well known. objective was to evaluate effect predictive capacity models based NIR spectra using a benchtop and portable spectrometer. First, signatures were collected radial face specimens at equilibrium (EMC) 11 from Amazonia both...
Many traits are known to be important in determining the value of Eucalyptus wood as sawn timber.The commercial importance microfi bril angle (MFA) for quality is well established a range softwoods, but less clear hardwood species.For instance, relationships MFA with stiffness and compressive strength unknown Eucalyptus.Therefore, aim this study was evaluate correlation between modulus elasticity (E c0,m ) compression parallel grain (F c0,k using juvenile grandis from fast-growing...
Aim of study: To verify how well near infrared (NIR) spectroscopy is able to discriminate wood specimens from natural and planted forests. This study was carried out using tropical trees Brazil.Area Wood coming Lavras (21°10′S, 44°54′W), Paraopeba (19°16′S, 44°24′W) Belo Oriente (19°17′S, 42°23′W) cities, Minas Gerais state, southeastern Brazil were insvetigated.Material methods: NIR spectra recorded in the radial surface four native species (Cedrela sp., Apuleia Aspidosperma sp. Jacaranda...
Abstract BACKGROUND The chemical compounds in coffee are important indicators of quality. Its composition varies according to several factors related the planting and processing coffee. Thus, this study proposed use near‐infrared spectroscopy (NIR) associated with partial least squares (PLS) regression estimate quickly some properties (moisture content, soluble solids, total reducing sugars) intact green samples. For this, 250 samples produced Brazil were analyzed laboratory by standard...
Abstract The heartwood formation process is little known in fast growing plantation woods. Therefore, the aims of this study were to determine how planting spacing and tree age affect proportion sapwood, as well density eucalyptus wood. Trees from a clonal ( Eucalyptus grandis × E. urophylla hybrid) cultivated three spacings (3 1, 3 2 m) sampled at 14, 27, 32, 53, 64 76 months age. Heartwood percentage was quantified with Dimethyl yellow indicator, while wood determined by X-ray...