Results 31 to 40 of about 40,409 (198)

Influence of pre-drilling hole and feed rate on welded surface strength of pine-itauba joints

open access: yesCase Studies in Construction Materials, 2022
Rotary friction welding technique is a promising alternative of joining dowel-laminated timber (DLT) and dowelled cross-laminated timber (DCLT), without any adhesive.
Ana Carolina Costa Viana   +3 more
doaj   +1 more source

Spreading of Antarctic Bottom Water in the Atlantic Ocean [PDF]

open access: yes, 2012
This paper describes the transport of bottom water from its source region in the Weddell Sea through the abyssal channels of the Atlantic Ocean. The research brings together the recent observations and historical data.
Morozov, E.   +2 more
core   +2 more sources

Development of a “pinhão” (brazilian pine nut) peeling machine

open access: yes, 2019
Resumo - A cadeia produtiva do pinhão envolve as etapas de colheita, descasque, industrialização e comercialização. Uma das dificuldades encontradas é a falta de equipamento capaz de descascar o produto, aumentando a capacidade de trabalho da atividade. O descascamento é um processo demorado e difícil, necessitando de intensa mão-de-obra. Este trabalho
Nagaoka, Alberto Kazushi   +4 more
openaire   +2 more sources

Form of Distribution of Dendro/Morphometric Variables for Brazilian Pine in Southern Brazil

open access: yesJournal of Agricultural Science, 2021
The form of distribution found for the dendro/morphometric variables determines the structure, stability, productivity of forest stands, being a tool to propose silvicultural interventions, management, conservation of species, and dynamics of this environment.
André Felipe Hess   +10 more
openaire   +2 more sources

Comparative Clinical Study Testing the Effectiveness of School Based Oral Health Education Using Experiential Learning or Traditional Lecturing in 10 Year-Old Children [PDF]

open access: yes, 2015
Background School based oral health education through traditional lecturing has been found successful only in improving oral health knowledge, while has low effectiveness in oral hygiene and gingival health.
Angelopoulou, Matina V.   +3 more
core   +3 more sources

Comparison of seedling growth among three co-occurring varieties of Araucaria angustifolia (Bertol.) Kuntze under greenhouse conditions

open access: yesActa Botânica Brasílica, 2010
Araucaria angustifolia (Bertol.) Kuntze is a tall, long-lived tree species, which grows as an emergent tree in the araucaria forests of southern Brazil. Four varieties have been described for this species, and three of them were selected for this study: "
André Luiz Coutinho   +1 more
doaj   +1 more source

Ammonia oxidation is not required for growth of Group 1.1c soil Thaumarchaeota [PDF]

open access: yes, 2015
© FEMS 2015. FUNDING EBW is funded by Centre for Genome Enabled Biology and Medicine, University of Aberdeen.Peer reviewedPublisher ...
Gubry-Rangin, Cécile   +3 more
core   +1 more source

Metabolic profile of Brazilian pine embryos and megagametophyte of stored seeds

open access: yesAfrican Journal of Agricultural Research, 2016
Changes in availability of metabolites during seed deterioration might damage processes of synthesis and energy release for embryonic growth. This research aimed to determine which alterations occur in metabolic profile over storage of Araucaria angustifolia seeds and how these alterations are related to viability loss.
Garcia Araldi Cristhyane   +2 more
openaire   +2 more sources

Oxypropylation of Brazilian Pine-Fruit Shell Evaluated by Principal Component Analysis

open access: yesJournal of Renewable Materials, 2018
Pine-fruit shell (PFS) is a lignocellulosic residue derived from the fruit of Araucaria angustifolia, a coniferous tree native of South America, part of a whole vegetation of the Atlantic Forest, found in the South and Southwest of Brazil. In this work PFS will be characterized and used in the production of PFS-based polyols through oxypropylation ...
Stephany C. de Rezende   +3 more
openaire   +1 more source

In vitro induced cold memory fails to enhance embryogenic cultures development in Araucaria angustifolia [PDF]

open access: yesAnais da Academia Brasileira de Ciências
This research aimed to study how exposing somatic embryos of Araucaria angustifolia to cold temperatures in vitro could enhance somatic embryogenesis. The somatic embryos were induced from immature zygotic embryos, grown for 120 days, and then subjected ...
GABRIEL ANTÔNIO P. DE MATOS   +5 more
doaj   +1 more source

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