Laproscopy was used in 400 ewes from 3 commercial flocks to study the difference in fertility of ewes mated in the first vs. second 2 weeks of the joining period. Examination of the ovaries of the ewes at joining and 14 days after joining revealed that 23% of the ewes did not experience a 'quiet ovulation' at the beginning of their breeding season but ovulated and displayed oestrus simultaneous...

Welding and joining of titanium aluminides is the key to making them more attractive in industrial fields. The purpose of this review is to provide a comprehensive overview of recent progress in welding and joining of titanium aluminides, as well as to introduce current research and application. The possible methods available for titanium aluminides involve brazing, diffusion bonding, fusion we...