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Influence of cellulose nanofibrils on soft and hard segments of polyurethane/cellulose nanocomposites and effect of humidity on their mechanical properties
(Elsevier B.V., 2014-12-01)
Cellulose nanofibrils (CNFs) were prepared by sulfuric acid hydrolysis from cotton microfibers, and used to prepare polyurethane (PU) nanocomposites by mixing CNFs and PU water suspensions. CNFs as nanofillers improved the ...
Imagens aéreas multiespectrais na identificação de zonas de manejo em áreas de algodão para aplicação localizada de insumos
(2011)
Crop yield is influenced by several factors with variability in time and space that are associated with the variations in the plant vigor. This variability allows the identification of management zones and site-specific ...
Ergonomic Analysis of Visual and Tactile Information of Materials Used in the Manufacture of Toys
(2015-01-01)
Products intended specifically for children began to be developed in the second half of the seventeenth century, driven by a change in the adult's view of the role of children in society. Over time it was noted that children ...
Higher spin analogs of linearized topologically massive gravity and linearized new massive gravity
(2021-10-15)
We suggest a new spin-4 self-dual model (parity singlet) and a new spin-4 parity doublet in D=2+1. They are of higher order in derivatives and are described by a totally symmetric rank-4 tensor without extra auxiliary ...
A comparative study between visible-light-activated and autopolymerizing sealants in relation to retention.
(1991-01-01)
This investigation was conducted with the object of comparing the retention capacity of two visible-light-activated sealants (Concise-3M and Sealite-Kerr) with the more commonly used autopolymerizing sealant (Delton-Johnson ...
Trade and maritime transport between Africa and South America
(CEPAL, 2001-03)
Summary Trade between Africa and South America is of relatively minor importance for each region. The main purpose of this report is to determine if a scarcity of maritime transport services could explain this comparative ...
AFLP analysis of the fruit fly Ceratitis capitata
(Life Technologies, Inc, 1999)
Amplified Fragment Length Polymorphism (AFLP) analysis is an efficient ADN finger printing method based on selective amplification using PCR of restriction fragments from a total digest of genomic DNA. The AFLP technique ...
Hilo de algodón
(Göteborgs Museum, Etnografiska Avdelningen, 1914)
Skein of white cotton thread.
Mochila de algodón en colores (lineas un solo sentido)
(Göteborgs Museum, Etnografiska Avdelningen, 1914)
Cotton backpack decorated with brown and orange lines, going in the same direction, on a white background.