Fiber Bundles
Mostrando 1-12 de 88 artigos, teses e dissertações.
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1. Morpho-anatomy of the inflorescence of Musa × paradisiaca
ABSTRACT Bananas and plantains are herbaceous monocotyledonous plants belonging to the genus Musa, Musaceae, which has a widespread distribution around the world. Various parts of banana plant are commonly used in traditional medicines. Several species of Musa are reported to possess anti-inflammatory, anti-hyperglycemic and antidiabetic properties. This wor
Rev. bras. farmacogn.. Publicado em: 27/05/2019
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2. Potential Slow Release Fertilizers and Acid Soil Conditioners Obtained by One-Pot Mechanochemical Activation of Chrysotile:Cement Roofing Sheets with K2HPO4
Chrysotile:cement roofing sheets were milled with and without K2HPO4. As indicated by X-ray diffraction (XRD), the samples crystallinities were reduced with the increasing milling time. The same tendency was observed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM), with disaggregation of the chrysotile fiber bundles and forma
J. Braz. Chem. Soc.. Publicado em: 2019-02
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3. Influence of tribological test on the global conversion of natural composites
Abstract The vinyl ester resins and natural composites have emerged as a suitable alternative in tribological application due to mechanical behavior, which relates to the conversion of the double bonds. During tribological test the permanent contact between polymeric sample and counterpart can increase the temperature affecting the crosslinking of the sample
Polímeros. Publicado em: 2017-12
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4. Chemical, morphological, and thermogravimetric of Terminalia catappa Linn
The objective of this study is to evaluate the chemical composition, morphology, and the thermogravimetric behavior of the pulp of Terminalia catappa, also known as tropical almond. The analytical results show, based mainly on its lipid content, that this fruit has a considerable energy value. Its fiber content contributes to enhance the functional propertie
Food Sci. Technol. Publicado em: 05/02/2016
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5. Pharmacobotanical study of Baccharis pentaptera
AbstractBaccharis L. sect. Caulopterae, Asteraceae, comprises thirty species in Brazil that show stems represented by cladodes, which are very similar in morphology. These species are popularly known as “carqueja” in Brazil and Argentina and are used in popular medicine as diuretic and stomachic. The aim of this work was to examine the morpho-anatomical
Rev. bras. farmacogn.. Publicado em: 2015-08
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6. On air blowing direction in the blown bubble-spinning
This paper studies the effect of airflow direction on morphology of the nanofibers obtained by the blown bubble-spinning, a kind of Bubbfil spinning processes. Regenerated silk fibroin is used in the experiment, and the results indicate that nanofibers with random array structure can be obtained when the blowing air direction is perpendicular to the directio
Matéria (Rio J.). Publicado em: 2014-12
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7. Gochnatia polymorpha: macro-and microscopic identification of leaf and stem for pharmacognostic quality control
Gochnatia polymorpha (Less.) Cabrera, Asteraceae, is popularly known as cambará and cambara-de-folha-grande in Brazil. It is used in traditional medicine to treat respiratory and gastrointestinal disorders. Pharmacological studies revealed anti-inflammatory, antispasmodic, antibacterial and antiviral activities. The goal of this paper was to carry out morph
Rev. bras. farmacogn.. Publicado em: 09/08/2013
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8. Álgebras de Clifford e a fibração de Hopf / Clifford algebras and the Hopf fibration
Spin groups come in many forms in Mathematics and Mathematical Physics, having great importance in the theory of fiber bundles and differential operators defined on them. The concept of spin structure is derived from them, being the basis of all a theory, known as spin geometry. This thesis introduces the first concepts necessary for the study of such groups
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/02/2012
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9. Uma versão parametrizada do teorema de Borsuk-Ulam / A parametrized version of the Borsuk-Ulam theorem
O teorema clássico de Borsuk-Ulam nos dá informações à respeito de aplicações S POT. nSETAR POT. n, no qual S POT. né um Z IND. 2-espaço livre. O teorema afirma que existe pelo menos uma órbita que é enviada em um único ponto em R POT. n. Dold [9] estendeu este problema para o contexto de fibrados, considerando aplicações f : S (E) SETAE POT. p
Publicado em: 2011
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10. A metallic impregnation technique adapted to study the honeybee Apis mellifera L. brain
In order to visualize the distribution pattern of the neuronal bodies and neurofibrils in the honeybee brain, we adapted a metallic impregnation technique first described for vertebrate nervous system by Ramón y Cajal. The honeybee brain constitution plays a key role in the development of learning and memory capacities. The general characteristics observed
Neotropical Entomology. Publicado em: 2010-10
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11. Expoentes de Lyapunov e de Morse em fibrados flag / Lyapunov and Morse exponents in flag bundles
Nesta tese, estuda-se o crescimento exponencial de cociclos contínuos, a valores vetoriais, sobre o fibrado flag maximal. Tais cociclos estão intimamente ligados com os expoentes de Lyapunov clássicos e, assim, o teorema ergódigo multiplicativo de Oseledets é provado em um contexto de teoria de Lie semi-simples. Com isto, estabelece-se uma conexão entr
Publicado em: 2010
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12. Coincidence of maps on Klein bottle Fiiber bundles over the Ciircle. / Coincidência de aplicações em fibrados com base circulo e fibra garrafa de Klein.
Let K be the Klein bottle and let K M S be a Klein bottle bundle over S 1 . In this work we study the following question: given a pair of fiber preserving maps over S^ , when can it be deformed by a fiberwise homotopy over S into a pair of coincidence free fiber preserving maps over S^, (f^{} , g^{} ) ?
Publicado em: 2009