Results 61 to 70 of about 1,672,341 (295)

About solid solutions of alloys

open access: yesЛитьë и металлургия, 2023
It is shown that the open pores of the crystal lattices of iron, manganese, titanium, cobalt cannot contain hydrogen, oxygen, nitrogen and carbon atoms. In solid solutions of alloys, hydrogen and oxygen atoms are present in the adsorbed state.
E. I. Marukovich   +2 more
doaj   +1 more source

Effects of the Electronic Structure, Phase Transition and Localized Dynamics of Atoms in the Formation of Tiny Particles of Gold

open access: yes, 2020
In addition to the self-governing properties, tiny metallic colloids are the building blocks of larger particles. This topic has been a subject of many studies.
Ali, Mubarak, Lin, I-Nan
core  

Quantum Degenerate Mixture of Ytterbium and Lithium Atoms

open access: yes, 2011
We have produced a quantum degenerate mixture of fermionic alkali 6Li and bosonic spin-singlet 174Yb gases. This was achieved using sympathetic cooling of lithium atoms by evaporatively cooled ytterbium atoms in a far-off-resonant optical dipole trap. We
Dowd, William H.   +5 more
core   +1 more source

Efficient magneto-optical trapping of a metastable helium gas [PDF]

open access: yes, 2001
This article presents a new experiment aiming at BEC of metastable helium atoms. It describes the design of a high flux discharge source of atoms and a robust laser system using a DBR diode coupled with a high power Yb doped fiber amplifier for ...
A. Sinatra   +34 more
core   +4 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

Thermodynamic metal crystallization basics

open access: yesЛитьë и металлургия, 2020
On the basis of thermodynamic calculations it is shown that crystallization of metals is a thermodynamic process, which takes place mainly at constant temperature.
E. I. Marukovich, V. Yu. Stetsenko
doaj   +1 more source

The quantum vibes of atoms and ichthyosaurs [PDF]

open access: yesMuzikologija, 2018
The quantum mechanical description of microscopic phenomena treats minuscule particles as waves and explains why atoms and molecules absorb and emit radiation at particular frequencies.
Mølmer Klaus
doaj   +1 more source

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

A Eterna Busca do Indivisível: do Átomo Filosófico aos Quarks e Léptons The eternal search for the indivisible: from philosophical atom to quarks and leptons

open access: yesQuímica Nova, 1997
The fascinating search of the inner boundaries of the Universe, has been entangled, since the birth of greek philosophy 25 centuries ago, with the main epistemological changes in the History of Science.
Francisco Caruso, Vitor Oguri
doaj   +1 more source

An integrated atom-photon junction

open access: yes, 2009
Photonic chips that integrate guides, switches, gratings and other components, process vast amounts of information rapidly on a single device. A new branch of this technology becomes possible if the light is coupled to cold atoms in a junction of small ...
A André   +30 more
core   +2 more sources

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