Results 31 to 40 of about 4,551 (259)

Quantitative characterization of mns inclusions in S355 steel regarding to solidification rate [PDF]

open access: yesHemijska Industrija, 2013
A practice of special interest for metallurgical steelmaking is the relationship between redistribution of solute elements and dendrite microsegregation that occurs during solidification.
Mahmutović Aida
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

Assessment and Improvement of Melt Quality of Recycled Secondary A357 Alloy by Application of the High Shear Melt Conditioning (HSMC) Technology

open access: yesCrystals
In addition to impurities in recycled aluminum alloys, non-metallic inclusions are a significant factor that deteriorates the material’s castability and final mechanical properties.
Zhichao Niu   +3 more
doaj   +1 more source

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

Current research and latest developments on refractories used as ladle linings

open access: yes工程科学学报, 2019
Non-metallic inclusions significantly influence the properties of steels. Take heavy rail steel as an example, Al2O3 inclusions can become fatigue source under cyclic stress, resulting in the rupture of the steel.
WANG En-hui, CHEN Jun-hong, HOU Xin-mei
doaj   +1 more source

Non-metallic inclusions and plasticity of steels

open access: yes, 2020
The problems of the influence of non-metallic inclusions in the technological plasticity and mechanical properties of steels are discussed. The results of the study of deformation and destruction of non-metallic inclusions in steel treatment pressure in various conditions were listed.
Gubenko, S., Mamuzić, Ilija
openaire   +3 more sources

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Effect of ladle-lining materials on inclusion evolution in Al-killed steel during LF refining

open access: yesHigh Temperature Materials and Processes
The effect of lining materials (Al2O3 and Al2O3–MgO·Al2O3) of ladle on evolution of non-metallic inclusions in aluminum-killed (Al-killed) steel during ladle furnace refining without Ca treatment was investigated through industrial experiments.
Gao Fu-bin   +4 more
doaj   +1 more source

Research on Rolling Contact Fatigue Mechanism of High Clean Bearing Steel GCr15

open access: yesTeshugang, 2023
Through the standard detection and rating the metallurgical quality of the high clean bearing steel prepared by vacuum degassing process, such as chemical composition, macrostructure, carbide inhomogeneity and non-metallic inclusions, and quantitative ...
Yin Qing   +5 more
doaj  

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