Results 41 to 50 of about 181,516 (292)

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Methods for reducing nonmetallic inclusions in coatings applied by laser surfacing

open access: yesRUDN Journal of Engineering Research, 2023
The results of experimental studies based on the analysis of deposited coatings and processing methods aimed at reducing the number of non-metallic inclusions in the process of laser powder cladding are presented.
Alexey V. Zavitkov   +3 more
doaj   +1 more source

The Corrosion Resistance of Iron-Tin Compacts as Produced by Powder Metallurgy [PDF]

open access: yes, 1947
The art of Powder Metallurgy deals with the preparation of metal powders and their utilization. As a more pertinent definition, the following has been suggest­ed: Powder Metallurgy is the art of producing metal powders and shaped objects from individual,
Gambill, Robert W.
core   +1 more source

Nonequilibrium electron charging in carbon-nanotube-based molecular bridges

open access: yes, 2007
We evidence the importance of electron charging under nonequilibrium conditions for carbon-nanotube-based molecular bridges, using a self-consistent Green's function method with an extended Huckel Hamiltonian and a three-dimensional Poisson solver.
Deretzis, Ioannis, La Magna, Antonino
core   +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

Study on Control Technology of Non-metallic Inclusions in 25MnBM Steel for Track Plate

open access: yesTeshugang, 2020
The 25MnBM track plate steel is produced by 50 ton EAF short process. The control technology of TiN inclusions and the effect of RE on non-metallic inclusions in 25MnBM of steel are studied.
卢乃双, 梁娜, 黄涛
doaj  

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

Modification of Non-Metallic Inclusions in Stainless Steel by Addition of CaSi

open access: yesMetals, 2019
The focus of this study involved comparative investigations of non-metallic inclusions in 316L stainless steel bars without and with Ca treatments. The inclusions were extracted by using electrolytic extraction (EE).
Hongying Du   +3 more
doaj   +1 more source

New insights of heterogeneous nucleation and anisotropic growth of acicular ferrite on non-metallic inclusion

open access: yesMaterials & Design, 2022
This work studies the acicular ferrite (AF) nucleation and growth from a classical defect, i.e. non-metallic inclusion surface. The heterogeneous AF-nucleation probability on NMI is predicted by a mathematical model following the classical nucleation ...
Changji Xuan, Wangzhong Mu
doaj   +1 more source

Optomagnetic composite medium with conducting nanoelements

open access: yes, 2002
A new type of metal-dielectric composites has been proposed that is characterised by a resonance-like behaviour of the effective permeability in the infrared and visible spectral ranges. This material can be referred to as optomagnetic medium.
A. Fert   +31 more
core   +1 more source

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