Results 61 to 70 of about 21,592,139 (246)
Strain hardenability of a gradient metallic alloy under high-strain-rate compressive loading
Materials & Design, 2019 Subjected to an impact loading, metallic alloys usually display strain softening due to the highly localized shear deformation accompanied by temperature rise, which causes the decrease of resistance to an applied loading and even catastrophic failure ...
Jitang Fan, Minqiang Jiang
doaj +1 more source
The microbiome in human skin aging
FEBS Letters, EarlyView.Age‐related skin changes encompass the well‐known visible phenotypic alterations, together with microbiome dysbiosis and a series of molecular aging hallmarks. These hallmarks characterize not only a fully stablished aged phenotype but also the skin aging process itself.
Manuel Huerta Arana +3 more
wiley +1 more source
Characterisation of the high strain rate behaviour of tubular materials
EPJ Web of Conferences, 2018 Airbag gas generators used in the automotive industry are often fabricated from tubular materials. The present work deals with the development of split Hopkinson tensile bar (SHTB) tests for tubular samples. Tubular specimens were machined from the tubes.
Caisso Camille +4 more
doaj +1 more source
FEBS 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
Towards high velocity deformation characterisation of metals and composites using Digital Image Correlation [PDF]
, 2010 Characterisation of materials subject to high velocity deformation is necessary as many materials behave differently under such conditions. It is particularly important for accurate numerical simulation of high strain rate events.
R. Eriksen +14 more
core +1 more source
Structural and biochemical analysis of a B12 superbinder
FEBS 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
High-strain-rate superplasticity in oxide ceramics
Science and Technology of Advanced Materials, 2007 Factors limiting the strain rate of superplastic deformation in ceramic materials are discussed on the basis of existing models and experimental results concerning high-temperature plastic deformation, intergranular cavitation and dynamic grain growth ...
Keijiro Hiraga, Byung-Nam Kim, Koji Morita, Hidehiro Yoshida, Tohru S. Suzuki and Yoshio Sakka
doaj
High Strain Rate Compaction of Porous Materials – Experiments and Modelling
EPJ Web of Conferences, 2018 Porosity can be found in many forms in common materials, either naturally occurring such as wood, or introduced by a manufacturing process. Applications for such materials include impact protection and energy absorption, which require a good ...
Cotton Matthew, Maw John
doaj +1 more source
FEBS 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
Constitutive Equations at High Strain Rates
4968In this review is presented which forms of semiempirical or physically-based constitutive equations are useful for high strain rate applications, how they match the real behavior, and where are the ...
Meyer, Lothar W.
core +1 more source