Results 31 to 40 of about 16,035 (297)

A Review of the Changes Produced by Extrusion Cooking on the Bioactive Compounds from Vegetal Sources

open access: yesAntioxidants, 2023
The demand for healthy ready-to-eat foods like snacks is increasing. Physical modification of vegetal food matrices through extrusion generates significant changes in the chemical composition of the final product.
Silvia Mironeasa   +3 more
doaj   +1 more source

Alx1, a member of the Cart1/Alx3/Alx4 subfamily of Paired-class homeodomain proteins, is an essential component of the gene network controlling skeletogenic fate specification in the sea urchin embryo [PDF]

open access: yes, 2003
In the sea urchin embryo, the large micromeres and their progeny function as a critical signaling center and execute a complex morphogenetic program.
De Jong, Deborah L.   +3 more
core   +1 more source

Biosynthesis and recent advances in production of bacterial cellulose

open access: yesEclética Química, 2018
The present paper discusses the recent advances about the biosynthesis and production of bacterial cellulose (BC), from gram-negative, aerobic and acetic acid Gluconcetobacter xylinus (Gx).
Ígor Augusto Negri Donini   +7 more
doaj   +1 more source

Optical structure and function of the white filamentary hair covering the edelweiss bracts

open access: yes, 2007
The optical properties of the inflorescence of the high-altitude ''Leontopodium nivale'' subsp. ''alpinum'' (edelweiss) is investigated, in relation with its submicrometer structure, as determined by scanning electron microscopy.
C. Starr   +15 more
core   +1 more source

Estrutura anatômica da madeira e qualidade do carvão de Mimosa tenuiflora (Willd.) Poir Anatonical structure and charcoal quality of Mimosa tenuiflora (Willd.) Poir. Wood

open access: yesRevista Árvore, 2006
Este trabalho objetivou determinar algumas características anatômicas e dimensões de fibras, elementos dos vasos, células do parênquima e dos raios da madeira da Mimosa tenuiflora (Willd.) Poir.
Elisabeth de Oliveira   +5 more
doaj   +1 more source

Vegetable fibers as multifunctional materials [PDF]

open access: yesMatéria (Rio de Janeiro), 2010
Concerns related to the ever-growing use of raw-materials from non-renewable sources by modern society is driving the interest of the academic and scientific sectors for a new concept of material, which takes into account not only mechanical performance, cost and availability, but also environmentally-related issues, such as biodegradability ...
openaire   +4 more sources

Presence of iron in polymers extruded with corrosive contaminants or abrasive fillers

open access: yesPolímeros
Off-site measurements of the dimensions of extruder screws are used to monitor their wear. This wear causes the presence of metals in the processed polymer.
Marcos Fernado Franco   +2 more
doaj   +1 more source

Development of flax/basalt/PA11 bio-composites: optimal formulation and modelling of the quasi-static behaviour

open access: yesFrontiers in Materials, 2023
Environmental impact is becoming increasingly important in the automotive industry, with car manufacturers looking to reduce CO2 emissions through cleaner engines and structural weight reduction.
Wassim Guerfala   +3 more
doaj   +1 more source

Intensified processes for FAME production from waste cooking oil: a technological review [PDF]

open access: yes, 2013
This article reviews the intensification of fatty acid methyl esters (FAME) production from waste cooking oil (WCO) using innovative process equipment. In particular, it addresses the intensification of WCO feedstock transformation by transesterification,
Aubin, Joelle   +2 more
core   +3 more sources

Natural-Fibrous Lime-Based Mortar for the Rapid Retrofitting of Heritage Masonry Buildings

open access: yesFibers, 2021
The present work aims to define the mechanical behavior of a new composite material for the preservation and enhancement of the vast historical and architectural heritage particularly vulnerable to environmental and seismic actions.
Marco Vailati   +3 more
doaj   +1 more source

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