Results 101 to 110 of about 1,729 (201)

SURFACE MODIFICATION OF SUGARCANE BAGASSE CELLULOSE AND ITS EFFECT ON MECHANICAL AND WATER ABSORPTION PROPERTIES OF SUGARCANE BAGASSE CELLULOSE/ HDPE COMPOSITES [PDF]

open access: yes, 2010
Cellulose fibres from sugarcane bagasse were bleached and modified by zirconium oxychloride in order to improve the mechanical properties of composites with high density polyethylene (HDPE).
Daniella Regina Mulinari   +4 more
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Biocomposites based on poly(butylene succinate) and curaua: Mechanical and morphological properties [PDF]

open access: yes, 2015
Biocomposites based on poly(butylene succinate) (PBS) and curaua fibers have been produced by compression molding, and investigated as a function of fiber length and amount.
Annamaria Celli   +4 more
core   +1 more source

Físicos, cirurgiões e boticários nas naus dos descobrimentos [PDF]

open access: yes, 2000
[...] Uma conclusão parece desde logo legítima e segura: até finais do século XV, seriam muito poucas as armadas que levavam médicos ou oficiais de saúde nas suas guarnições.
Castro, Aníbal de
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A Study on Mechanical Behavior of Surface Modified Natural Fiber Based Polymer Composites [PDF]

open access: yes, 2011
In recent years, natural fiber reinforced polymer composites have received much attention because of their many advantages such as lightweight, nonabrasive, nontoxic, low cost and biodegradable properties.
Sethy, Soumya Ranjan
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VALIAÇÃO DE PLANTIOS DE PARICÁ (Schizolobium parahyba var. amazonicum (Huber ex Ducke) Barneby DE DIFERENTES IDADES E SISTEMAS DE CULTIVO NO MUNICÍPIO DE AURORA DO PARÁ - PA (BRASIL)

open access: yesCiência Florestal, 2015
This work aimed to study the behavior of the species Schizolobium parahyba var. amazonicum ( Huber ex Ducke ) Barneby (In the Portuguese language ‘Paricá’) at different ages and cultivation systems in Aurora do Pará (Pará state, Brazil).
Iracema Maria Castro Coimbra Cordeiro   +3 more
doaj  

Efeito de 2,4-D e glutamina na embriogênese somática e regeneração de plantas de Caroá. [PDF]

open access: yes, 2012
Caroá é uma bromeliaceae endêmica da Caatinga que tem relevada importância econômica e social no Semiárido Brasileiro, porém essa espécie está em condição de ameaçada em algumas regiões nordestinas devido à coleta extrativista.
LINO, L. S.   +3 more
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Effects of alkali treatments on the tensile properties of pineapple leaf fibre reinforced high impact polystyrene composites [PDF]

open access: yes, 2012
A study on the effects of alkali treatment and compatibilising agent on the tensile properties of pineapple leaf fibre (PALF) reinforced high impact polystyrene (HIPS) composite is presented in this paper.
Ab Rahman, Mohamad Zaki   +3 more
core  

A study on mechanical behavior of bamboo fiber based polymer composites [PDF]

open access: yes, 2014
The modern dynamic world can’t imagine its development without bringing the concept of advancement in material composite. Various researches are going on in this field to achieve the desired standard. Natural fiber reinforced polymer composite has a huge
Gupta, S K
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