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Navegação Cerne por autor "Hein, Paulo Ricardo Gherardi"

Navegação Cerne por autor "Hein, Paulo Ricardo Gherardi"

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  • Estimate of the density of Eucalyptus grandis W. Hill ex Maiden using near infrared spectroscopy
    Rosso, Silviana; Muniz, Graciela Ines Bolzon de; Matos, Jorge Luis Monteiro de; Haselein, Clóvis Roberto; Hein, Paulo Ricardo Gherardi; Lopes, Merielen de Carvalho (Universidade Federal de Lavras, 2013-10)
    This study aimed to analyze use of near infrared spectroscopy (NIRS) to estimate wood density of Eucalyptus grandis. For that, 66 27-year-old trees were logged and central planks were removed from each log. Test pieces 2.5 ...
  • Estimation of the dynamic elastic properties of wood from Copaifera langsdorffii Desf using resonance analysis
    Leite, Edson Rubens da Silva; Hein, Paulo Ricardo Gherardi; Souza, Tomé Moreira de; Rabelo, Giovanni Francisco (Universidade Federal de Lavras, 2012-01)
    Analysis of transverse vibrations has been identified as a simple, inexpensive, fast and effective method of characterizing the elastic properties of several materials, including wood. The objective of this study is to ...
  • Micro/nanofibrilas celulósicas de Eucalyptus em fibrocimentos extrudados
    Fonseca, Camila Soares; Silva, Thaís Ferreira da; Silva, Matheus Felipe; Oliveira, Isabela Rodrigues de Campos; Mendes, Rafael Farinassi; Hein, Paulo Ricardo Gherardi; Mendes, Lourival Marin; Tonoli, Gustavo Henrique Denzin (Universidade Federal de Lavras, 2016)
    Uma forma alternativa para produção de fibrocimento é a extrusão, que permite entre muitas vantagens a produção de compósitos cimentícios com geometrias diferenciadas e requer baixo investimento inicial para produção ...
  • Near infrared spectroscopy for estimating wood basic density in Eucalyptus urophylla and Eucalyptus grandis
    Hein, Paulo Ricardo Gherardi; Campos, Ana Carolina Maioli; Trugilho, Paulo Fernando; Lima, José Tarcísio; Chaix, Gilles (Universidade Federal de Lavras, 2009-04)
    Wood basic density is indicative of several other wood properties and is considered as a key feature for many industrial applications. Near infrared spectroscopy (NIRS) is a fast, efficient technique that is capable of ...
  • Predicting the morphological characteristics and basic density of Eucalyptus wood using the NIRS technique
    Viana, Lívia Cássia; Trugilho, Paulo Fernando; Hein, Paulo Ricardo Gherardi; Lima, José Tarcísio; Silva, José Reinaldo Moreira da (Universidade Federal de Lavras, 2009-10)
    This research aimed to apply the near infrared spectroscopy technique (NIRS) for fast prediction of basic density and morphological characteristics of wood fibers in Eucalyptus clones. Six Eucalyptus clones aged three years ...
  • Use of near infrared spectroscopy to distinguish carbonization processes and charcoal sources
    Monteiro, Thiago Campos; Silva, Renato Vieira da; Lima, José Tarcísio; Hein, Paulo Ricardo Gherardi; Napoli, Alfredo (Universidade Federal de Lavras, 2010-07)
    The near infrared spectroscopy (NIRS) has shown a rapid and accurate technique for evaluation of materials of biological origin. The objective of this study was to evaluate the ability of the near infrared (NIR) spectroscopy ...

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