Results 31 to 40 of about 829,330 (310)

Formation of Structure and Properties in Casting Processes on the Example of AZ91 Magnesium Alloy

open access: yesArchives of Foundry Engineering, 2014
Contemporary materials engineering requires the use of materials characterised by high mechanical properties, as these precisely properties determine the choice of material for parts of machinery and equipment. Owing to these properties it is possible to
Augustyn B.   +4 more
doaj   +1 more source

Metal–metal bonds in biology [PDF]

open access: yesJournal of Inorganic Biochemistry, 2012
Nickel-containing carbon monoxide dehydrogenases, acetyl-CoA synthases, nickel-iron hydrogenases, and diron hydrogenases are distinct metalloenzymes yet they share a number of important characteristics. All are O(2)-sensitive, with active-sites composed of iron and/or nickel ions coordinated primarily by sulfur ligands.
openaire   +2 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Crystallographic Orientation, Recrystallization, and Texture Development in AZ91 Magnesium Alloy Rods Fabricated by Continuous Rotary Extrusion (CRE) [PDF]

open access: yesArchives of Metallurgy and Materials
The magnesium alloy AZ91 is widely used in the aviation and automotive industries, where high mechanical properties combined with low density are required. Searching for new, advanced deformation methods in these industries is also essential.
M. Mitka   +5 more
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

The Effect of Dispersion Phases of SiC and Al2O3 on the Properties of Galvanic Nickel Coatings

open access: yesArchives of Metallurgy and Materials, 2016
In this study, Ni, Ni-SiC and Ni-Al2O3 coatings were electroplated on the 2xxx series aluminium alloy. The following parameters of the electroplating process were applied: current density - 4A/dm2, time - 60 minutes, and temperature - 60°C.
Kozik A.   +4 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Hot compressive deformation behavior and microstructure characteristics of new ultra strength Al-Zn-Mg-Cu alloy

open access: yesCailiao gongcheng, 2019
The hot compression test of the new ultra strength Al-Zn-Mg-Cu-Zr-Sc alloy at high temperature was carried out by using the Gleeble-1500 thermal simulator.
WANG Yu   +6 more
doaj   +1 more source

Oak Ridge Metals and Ceramics Division Annual Progress Report [PDF]

open access: yes, 1962
Report documenting research and developments made by the Metals and Ceramic Division of the Oak Ridge National ...
Oak Ridge National Laboratory. Metals and Ceramics Division.
core  

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

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