9 documents found, page 1 of 1

Data transformation in biological assays

The analysis of variance is the statistical test most used for comparison of three or more means simultaneously. Its application requires, however, the compliance to some assumptions, with main emphasis on normality of the data and homoscedasticity of variances. When such requirements are not met, one of the alternatives is the data transformation to enable the continuity of the experimental evaluation. With th...

Simultaneous estimation as an alternative to young eucalyptus aboveground bioma...

Accurate forest biomass estimates require the selection of appropriate models of individual trees. Thus, two properties are required in tree biomass modeling: (1) additivity of biomass components and (2) estimator efficiency. This study aimed to develop a system of equations to estimate young eucalyptus aboveground biomass and guarantee additivity and estimator efficiency. Aboveground eucalyptus biomass models ...

Initial growth of four tree species at different spacings

The objective of this paper was to evaluate the initial increase of the height and diameter of the collum of the species Acacia mearnsii De Willd, Eucalyptus grandis Hill, Mimosa scabrella Benth and Ateleia glazioviana Baill in the spacings 2 x 1m; 2 x 1.5m; 3 x 1m and 3 x 1.5m, with views to the production of wood for energy in cultures of short rotation. An experimental design of randomized blocks was used in...

Reconhecimento de emoções em vídeo utilizando redes neurais artificiais

TCC(graduação) - Universidade Federal de Santa Catarina. Centro Tecnológico. Ciências da Computação.; O reconhecimento de emoções em faces humanas apresenta uma série de utilizações no campo de saúde, para análise comportamental, por exemplo. É uma tarefa altamente desafiadora pois necessita ter um bom desempenho, em questão de tempo e de assertividade, mas sem necessitar de grandes clusters de computação, dest...

Dynamics of solar radiation and soybean yield in agroforestry systems

Modelagem da biomassa de árvores para assegurar aditividade dos seus componentes

Orientador : Prof. Dr. Sylvio Péllico Netto; Coorientador : Prof. Ph.D. Carlos Roberto Sanquetta; Coorientador : Profª. Dª. Ana Paula Dalla Corte; Tese (doutorado) - Universidade Federal do Paraná, Setor de Ciências Agrárias, Programa de Pós-Graduação em Engenharia Florestal. Defesa: Curitiba, 12/09/2016; Inclui referências : f. 92-114; Área de concentração : Manejo florestal; Resumo: Neste trabalho é discutido...

Properties of Eucalyptus benthamii wood for energy production

The objective of this study was to evaluate the energy potential of Eucalyptus benthamii Maiden et Cambage wood. The samples were collected in the municipality of Cerro Negro, Santa Catarina State, Brazil. Samples were collected from 5 trees at 0%, 25%, 50%, 75% and 100% of commercial height. It was determined basic density, high calorific value, elemental composition, immediate chemical analysis, lower calorif...

Organic carbon contents of three tree species in different spacing

This study aimed to evaluate the content of organic carbon in plant parts (leaves, wood, twigs and bark) of forest species Acacia mearnsii De Wild, Eucalyptus grandis Hill and Mimosa scabrella Benth, under different spacing between trees (2.0 m x 1.0 m, 2.0 m x 1.5 m, 3.0x1.0 m and 3.0 m x 1.5 m), one year after planting. It was also aimed to verify if the conversion factor of 50% can be applied. To determine t...

Biometry of Arboreal species in forest restoration areas in southern Brazil.

A crescente degradação ambiental tornou necessário aprofundar o conhecimento sobre o comportamento silvicultural de espécies nativas para a restauração florestal. O objetivo deste estudo foi avaliar o desenvolvimento silvicultural de um plantio de 10 espécies, 3 pioneiras, Mimosa bimucronata, Senna multijuga e Schizolobium parahyba, e 7 secundárias iniciais, Myrsine coriacea, Inga edulis, Inga marginata, Inga l...