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Barcelona are quite thin at right back for the remainder of the season.

Barcelona: The team had a quiet transfer window with Memphis Depay departing for Atletico Madrid and Hector Bellerin leaving for Sporting CP. They tried to sign Julian Araujo from the Los Angeles Galaxy as a replacement for Bellerin but the deal was intime to be confirmed by the league. It was one of four prominent deals caught up in paperwork around the world but it could be an important one as  Sevilla: With a busy window, Sevilla have gotten stronger adding Loc Bade, Bryan Gil, and Pape Gueye. Gil's return to Spain will be something to watch as he was struggling for playing time at Tottenham but his skill on the ball suits Spanish soccer well. With a chance to make his season debut for the club this week, he will try to make a difference in this match. Prediction Barcelona won't find much trouble in this match. Sevilla are a plucky side but the attack isn't strong enough to trouble Barcelona's defense. Pick: Barcelona 2, Sevilla 0  

PKU Pioneer distributed its high efficient PSA Oxygen Technology, which could save power consumptio

 PKU Pioneer distributed its high efficient PSA Oxygen Technology, which could save power consumptio   Science & Technology In 2017, many steel company enlarged their oxygen capacity and invest to build large oxygen plants. One of the efficient and popular oxygen generating methods is VPSA oxygen technology. PSA oxygen technology is one of the air separating technology for oxygen booming in recent ten years. Compared with traditional cryogenic technology, PSA oxygen technology is known for its low investment, low consumption, low operation-maintenance fee, mild process conditions, simple process flow, high automation, high operation flexibility, short construction duration, and safe performance. Up to now, PSA oxygen technology can replace cryogenic in many circumstances, and the PSA oxygen technology is more economic than cryogenic in running. The main components of air are nitrogen and oxygen, so oxygen can be generated through a selective adsorbent which can separate ox...