Iron is the principal catalyst for the ammonia synthesis process and the Fischer-Tropsch process, as well as many other heterogeneously catalyzed reactions. It is thus of fundamental importance to understand the interactions between the iron surface and various reaction intermediates. Here, we present ...
The ferrimagnetic insulator iron garnets, tailored artificially with specific compositions, have been widely utilized in magneto-optical (MO) devices. The adjustment on synthesis always induces structural variation, which is underestimated due to the limited knowledge of the local structures. Here, by ...
magnetization of paramagnetic substancesFigure 15: The approach to saturation in the magnetization of a paramagnetic substance following a Brillouin curve. Curves I, II, and III refer to ions of chromium, potassium alum, iron ammonium alum, and gadolinium sulfate octahydrate for whichg= 2 andj= ...
Without a crystallographic unit cell and no translational symmetry, different power-law relations between volume and length have been proposed with an exponent of around 2.3 to 2.521,22,24. Applying this reduced exponent in the Yavari approach yields a lower CTE that is closer to the ...
The data are interpreted in terms of an atomic place exchange between silver and incident iron atoms at the surface of the growing film.doi:10.1016/0039-6028(95)01086-6M. CanepaE. MagnanoAndrea CamporaP. CantiniM. SalviettiL. Mattera...
The observed CuPc domain fracturing is consistent with a mechanism for the dosimetric sensing of NO2 and other reactive gases by CuPc organic thin film transistors (OTFTs). 展开 关键词: Iron oxide Gold Hybrid nanoparticles Magnetic resonance imaging Computed tomography Nanomedicine ...
From the beginning of using stone tools in the Stone Age to metal shaping using casting and forging in the Bronze and Iron Ages, human beings have manually manufactured tools and various supplies over a fairly long period of time with tool sizes in the millimeter range, visible to the naked...
Each trooper was wearing a powered armor suit making each one the functional equivalent of Iron Man armed with nuclear weapons, so you had quality over quantity (i.e., they were more like space marines than they were like space army)....
The real secret of Iron Man's armor is the tiny Arc Reactor. Synonym: Man Amplifier, Exoframe. Pseudo-gravity A handwaving machine that converts electricity into gravitational attraction. Commonly seen on Star Trek and practically every other SF TV and movie featuring starships, built into the ...
Molecular dynamics (MD) simulations revealed that coalescence of iron nanoclusters occurred at a temperature lower than the melting point of the clusters, and the difference in temperatures between coalescence and melting increased as the decreasing of cluster size12. The collision and coalescence of ...