Cold dwell fatigue is a well-known problem in the titanium components of aircraft engines.The high temperature and low dwell stress of in-service conditions have been reported to give rise to dwell fatigue resistance through a thermal-mechanical alleviation process.Here, dwell fatigue tests at room Laptop Accessories temperature and the component o
In this article the author carried out sedimentary and genetic modeling of facies parameters within heterogeneous geological bodies based on the analysis of geological and geophysical materials in the Southern Ukrainian oil and gas region.Special attention was paid to clastic facies and parameters demonstrating the degree of heterogeneity and a wid
DNA sulfur modification is a unique modification occurring in the sugar-phosphate backbone of DNA, with a nonbridging oxygen atom substituted with sulfur in a sequence-specific and Rp stereo-specific manner.Bioinformatics, RNA-seq, and in vitro transcriptional analyses have shown that DNA sulfur modification may be involved in epigenetic regulation
A novel ultrasonic vibration enhanced friction stir welding (UVeFSW) process was employed to join the rolled 2195 aluminium-lithium alloy of 4 mm 1040 thickness.The effects of superimposing ultrasonic on the macro metallograph,microhardness and tensile properties of welded joints were compared and analyzed.The effect of process parameters on the we