The purpose of this paper is to study the global wellposedness and large time behavior results strong solutions for compressible Oldroyd-B model derived by Barrett, Lu, Süli (Commun. Math. Sci., 15, 1265–1323, 2017). Exploiting harmonic analysis tools (especially Littlewood-Paley theory), we first well-posedness with small initial data in spaces low regularity. Then, under some suitable conditi...

In this task, some mechanical properties and diffusion kinetics of boronized layers on X65Cr14 martensitic stainless steel were investigated. The boronization treatments carried out at 1123, 1173, 1223 1323 K with 2, 4, 6 8 hours using the packing process. characterized by optical microscopy, X-ray diffraction, micro-Vickers hardness tester. produced exhibited smooth regular morphology. thickne...

Magyarország Kormánya az 1257/2018. (VI. 4.) határozatával a hazafias és honvédelmi nevelésért felel?s kormánybiztost nevezett ki jelen tanulmány szerz?jének személyében. Feladatai között szerepel nevelés kormányzati stratégiájának kidolgozása. A hazafiságra komplex feladatrendszerébe integrálódik. Az alábbiakban közreadott írás hazafiasságra rendszerkörnyezete elemzésének részeként bemutatja k...

We present a new analysis of the dynamics of the planetary system around the pulsar B1257+12. A semi-analytical theory of perturbation between terrestrial-mass planets B and C is developed and applied to improve multi-orbit timing formula for this object. We use numerical simulations of the pulse arrival times for PSR B1257+12 to demonstrate that our new timing model can serve as a toll to dete...