The microstructure, texture, and mechanical properties of the asymmetric welded joint in variable polarity plasma arc (VPPA) welding were studied discussed this paper. was obtained through horizontal welding, where effect gravity caused material flow. results showed that grain size low angle boundary (LAGB) at both sides asymmetric; differed by a factor 1.3. average Base Metal (BM), Lower-weld ...

This article, dedicated with admiration in memory of Jon and Peter Borwein,illustrates by example, the power experimental mathematics, so dear to them both, experimenting so-called Apéry limits WZ pairs. In particular we prove a weaker form an intriguing conjecture Marc Chamberland Armin Straub (in article Borwein), generate lots new limits. We also rediscovered infinite family cubic irrational...

We present the calculation of the next-to-leading order QCD corrections to electroweak pp→ eνe μ μjj and pp→ eν̄e μ μjj production at the CERN LHC in the form of a fully flexible parton-level Monte Carlo program. The QCD corrections to the total cross sections are modest, changing the leading-order results by less than 10%. At the Born level, the shape of kinematic distributions can depend signi...