segregation

It is shown that the ash content of coal is unevenly distributed by size classes. The 25-50 mm class has the highest average ash content (13.1% wt.), but exhibits significant variability (6.8-32.1% wt.). Smaller classes (<0.5 mm) have a higher ash content (up to 15.1% wt.) compared to the average sizes (10.9% wt. on average). The stability of the technological properties of the coal charge during injection was confirmed, however, there are discrepancies in particle size, volatile matter yield and ash content, which increased from the center of the tower to its outer rows.

Depicted in the Article are two stages of technological construction processes for asphalt concrete courses, namely: loading and transportation of asphalt concrete mix. As regards the loading, presented in the Article are two versions of discharging directly into dump body of dump truck or into storage hopper. Mentioned are the advantages of storage hopper usage, as well as the variety of such facilities and the storage time for asphalt concrete mix inside them. Described is the preparation procedure for a dump body of dump truck prior to loading (cleaning, lubrication).

У статті робиться спроба окреслити явище просторової сегрегації у Львові, виділити історичні аспекти цього явища та їх вплив на сучасний стан. Наводиться власна класифікація соціальних груп, які склалися на цей момент у місті, а також окреслюється ступінь їх взаємної ізольованості.