Results 51 to 60 of about 8,661,004 (259)
Damage and strain rate optical characterisation of standard and tufted non crimp fabric carbon composites for Meso-scale impact models [PDF]
, 2009 As global warming is a prime concern to the wellbeing of the planet, lighter planes are a requirement to reduce CO2 emissions. Light structures made of carbon epoxy composite materials are of particular interest but are sensitive to impacts such as
Colin de Verdiere, Mathieu
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Effects of the Strain Rate Sensitivity and Strain Hardening on the Saturated Impulse of Plates
Latin American Journal of Solids and StructuresThis paper studies the stiffening effects of the material strain rate sensitivity and strain hardening on the saturated impulse of elastic, perfectly plastic plates.
Ling Zhu, Xu He, F. L. Chen, Xueyu Bai
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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
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Correlation between strain rate sensitivity and a relaxation of metallic glasses
, 2016 An inherent correlation between the strain rate sensitivity and a relaxation of metallic glasses (MGs) is observed. This correlation can be attributed to the secondary term which incorporates the nonaffine displacements of atoms in the analytical ...
Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. +6 more
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Dynamic Strain Aging, Negative Strain-Rate Sensitivity and Related Instabilities [PDF]
, 2019 We give in this paper a possible mechanical interpretation to the development of L¨uders front and Portevin-Le-Chatelier effect based on a band analysis for an elastic- viscoplastic material with negative strain-rate sensitivity.
Benallal, A. +3 more
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Room temperature strain rate sensitivity in precursor derived HfO2/Si-C-N(O) ceramic nanocomposites
AIP Advances, 2014 Investigation on the room temperature strain rate sensitivity using depth sensing nanoindentation is carried out on precursor derived HfO2/Si-C-N(O) ceramic nanocomposite sintered using pulsed electric current sintering.
Ravindran Sujith, Ravi Kumar
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FORMABILITY OF AUSTENITIC STAINLESS STEEL 316 SHEET IN DYNAMIC STRAIN AGING REGIME
Acta Metallurgica Slovaca, 2014 Dynamic strain aging region for austenitic stainless steel 316 was investigated from room temperature to 650°C at constant strain rates of 1x10-2, 1x10-3 and 1x10-4 sec-1.
Syed Mujahed Hussaini +2 more
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Effect of Annealing on Strain Rate Sensitivity of Metallic Glass under Nanoindentation
Metals, 2020 The influence of isothermal annealing on the strain rate sensitivity (SRS) of a Zr-based bulk metallic glass (BMG) was investigated by nanoindentation. A more positive SRS is observed with a decrease in the content of the free volume (FV) of the sample ...
Mingcan Li
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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
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FEBS Letters, EarlyView.Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil +3 more
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