Order strengthening in nickel-based superalloys is associated with the extra stress required for dislocations to bypass $\gamma'$ precipitates distributed $\gamma$ matrix. A rich variety of mechanism has been identified, various shearing and Orowan looping processes giving way climb as operating conditions change from low/intermediate temperatures high regime, temperature low regime. When anti ...

let $g$ be a group. the order graph of $g$ is the (undirected)graph $gamma(g)$,those whose vertices are non-trivial subgroups of $g$ and two distinctvertices $h$ and $k$ are adjacent if and only if either$o(h)|o(k)$ or $o(k)|o(h)$. in this paper, we investigate theinterplay between the group-theoretic properties of $g$ and thegraph-theoretic properties of $gamma(g)$. for a finite group$g$, we s...

This paper defines an isomorphism, an anti-isomorphism and a Jordan isomorphism in a gamma ring and develops some important results relating to these concepts. Using these results we prove Herstein’s theorem of classical rings in case of prime gamma rings by showing that every Jordan isomorphism of a 2-torsion free prime gamma ring is either an isomorphism or an anti-isomorphism. AMS Mathematic...

A search for a massless dark photon $\gamma^{\prime}$ is conducted using 4.5 $\mathrm{fb}^{-1}$ of $e^+e^-$ collision data collected at center-of-mass energies between 4.600 and 4.699 $\mathrm{GeV}$ with the BESIII detector BEPCII. No significant signal observed, upper limit on branching fraction $\mathcal{B}(\Lambda^{+}_{c}\to p \gamma^{\prime})$ determined to be $8.0\times 10^{-5}$ 90% confid...