Results 81 to 90 of about 138,786 (284)

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

Localised low velocity impact performance of short glass fibre reinforced polyamide 66 oil pans [PDF]

open access: yes, 2012
This thesis focuses on the mechanical properties of short glass fibre reinforced polyamide 66 material used in automotive composite structures, and its impact resistance under localised low velocity impact.
Mouti, Zakaria
core   +4 more sources

Microstructure and Mechanical Properties of Diamond–Ceramic Composites Fabricated via Reactive Spark Plasma Sintering

open access: yesCeramics
In order to prepare diamond composites with excellent mechanical properties under non-extreme conditions, in this study, a diamond–ceramic composite was successfully prepared via reactive spark plasma sintering using a diamond–Ti–Si powder mixture as the
Yunwei Shi   +5 more
doaj   +1 more source

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices   +3 more
wiley   +1 more source

Impact of Mixture Ratio on Bio-Composite Material from Bamboo and Recycled Polyethylene Terephthalate (PET)

open access: yesABUAD Journal of Engineering Research and Development
The study investigated the impact of mixture ratio on various physico-chemical and mechanical properties of a bio-composite material made from bamboo and recycled polyethylene terephthalate (PET).
Abiodun Ayodeji Ojetoye   +5 more
doaj   +1 more source

Mechanical properties of Bombyx mori silkworm silk fibre and its corresponding silk fibroin filament: A comparative study

open access: yesMaterials & Design, 2019
Bombyx mori silkworm silk fibre is recognized as a kind of natural biological composite materials. From the view of composite materials science, we carried out systematic tensile tests to study mechanical properties and their variations along the length ...
Shaoyong Chen   +4 more
doaj   +1 more source

Effect of Binary and Ternary Filler Mixtures on the Mechanical Properties of Composite Resins.

open access: yesDental Materials Journal, 2000
The mechanical strength of experimental light cure composites containing binary filler mixtures with various combinations of irregular and spherical macrofillers in various mixes, and the microfilled ternary system fillers were measured. The compressive strength of the binary mixtures between different shaped fillers was not related to mixing ratios ...
MIYASAKA, Taira, YOSHIDA, Takaichi
openaire   +3 more sources

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

Bakery properties of composite mixtures of wheat and spelt flour

open access: yesНовые технологии, 2018
Baking properties of the composite mixtures of flour (wheatand spelt) have been assessed. It ‘s shown that the introduction of spelt flour into the mixture leads to an increase in the activity of amylolytic enzymes. A decrease in the mass fraction of raw gluten in all samples of dough with the introduction of selt flour is observed.
N. S. Sanzharovskaya   +4 more
openaire   +1 more source

A generalized mixture rule for estimating the viscosity of solid-liquid suspensions and mechanical properties of polyphase rocks and composite materials

open access: yes, 2004
A simple phenomenological formula is proposed to predict the mechanical properties of isotropic multiphase materials in terms of component properties, volume fractions, and microstructures.
Ji, SC   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy