Abstract High-strength Al–Zn–Mg–Cu alloys such as AA7075 rely on precipitation to obtain their properties, and the evolution of these precipitates can be strongly influenced by deformation. In this study, effect warm stretching in supersaturated was investigated. A dilatometer used enable rapid quenching directly from solution treatment temperature temperature. The monitored using small-angle X...

The Effect of Static Stretching and Order of Warm-Up on the Isokinetic Peak Torque of the Knee Extensors

This study examined lower extremity power performance, using the Margaria-Kalamen Power Test, after a dynamic warm-up with (resisted) and without (nonresisted) a weighted vest. Sixteen (n = 16) high school male football players, ages 14-18 years, participated in 2 randomly ordered testing sessions. One session involved performing the team's standard dynamic warm-up while wearing a vest weighted...

where the first inequality is an application of the triangle inequality, the second follows from (1) and (2), and the third from the choice of m. Therefore, since our choice of > 0 was arbitrary, we conclude that the subsequence (xnm)→ b. A similar argument using the sequence (zm) given by zm = inf{xm, xm+1, . . .} and the version of Lemma 1.3.7 suitable for infima (see Exercise 1.3.2, which yo...

background quince seed mucilage biopolymer (qsmb), famous for ameliorating coughs and controlling asthma symptoms, has not been processed by scientific methods and rules into a local oral tablet. objectives the purpose of this study was to investigate and compare the mechanical properties of qsmb with different size fractions of the mucilage powder, dried by oven or by freeze drying, to achieve...

The aim of this research was to study the effect of warm up with two different type intensity on plasma antioxidant enzymes and damage indices of lipid, protein and DNA after intensive activity in non-athlete males. 12 non athlete students of kharazmi University participated in this study. Firist, subjects VO2peak were measured by Gas analyzer (Meta Max 3B) on the ergometer cycle with increment...

Deep focus earthquakes within the Tonga-Fiji subduction system account for about two-thirds of global total and provide significant constraints on slab deformation. The factors controlling intense deformation remain unclear. Here, we use two-dimensional, time-dependent geodynamic models to study morphology, stress state, thermal structure zone. results, consistent with tomographic images focal ...