US, Chinese researchers develop energy-efficient plastic-manufacwhat do wrist sweatbands doturing material

Liu chenyang2019-11-26 15:22:19245Views
South By Southwest (Sxsw) Music Festival Austin, Texas One part grimy dive bar and one part hip live music venue, Off Broadway walks a thin line. The St. Louis venue isn"t so ghetto and grungy that it scares off well known out-of-town groups, and it"s not so pristine and sterile that it seems awkward to watch a local garage band play there on a Wednesday. For those who live in or near St. Louis and have developed a taste for punk, indie rock and Stag, Off Broadway may be the best music venue around. JON AUER: I spent a couple of weeks in Minneapolis making a record with a band called The Melismatics who I think are fantastic. Beyond the music, they also inspired me with their work ethic with was superlative. I also just played with a band while I was recently in Singapore called Typewriter who I had a great time with. We played together, some of my songs, some of theirs, kind of a musical cultural exchange at a big festival wristbands there. Of course, there are goals that have to do with physical measurements (weight, body fat percentage, size), and other goals that might have to do with your performance, like running a certain time or distance. Another type of goal might be to get yourself geared up for a future event or challenge, like a 10k run, or a full or 1/2 marathon, or a triathlon, or a "Tough Mudder" event wristbands, or a long distance cycling event, or a 3-day walk, and so on. You could even schedule a vacation where you"ll be active, like climbing, or surfing, or skiing, or white water rafting, or hiking. You get the point. Saturday"s festival is geared toward the whole family, and admission is free for all. "Celebrate Downtown, C"Mon" will be held at 5th & Maine in downtown Tulsa. Musical talent will include Mary Cogan, Rochelle Chambers, David Skinner Band, WallStreet, Eldredge Jackson, and Jeff Shadley Group. Hosted on Woolaroc Ranch"s historic grounds, the KidsFest features live entertainment, events, games, wagon rides, and crafts. Visitors are welcome to enjoy the parochial grounds and the beauty of the Osage Hills. The Woolaroc Museum has several historical art pieces and memorabilia. The Ranch also sport wristbands a Wildlife Preserve. Fishing is another popular pastime in Lorne. Beach fishing can be good but most anglers seem to prefer the Lorne pier where you can catch just about anything. Whiting and Flathead are a common catch and in winter you can get on to a school of Snapper. Squid can also be caught by jigging at the end of the pier. If you don"t have any luck there is no need to worry because the local fishing co-op is right near the pier and they do very good fish and chips. AB: The music industry is changing every day. There are a lot of reasons we do it. One reason is obvious: publicity. Being active on social media gets our name out there, which gets us more fans. We use it as a promotional tool. But first and foremost, the internet makes bands more accessible to music fans. I wish we were young at this time so that we can connect to the artists we follow. We just feel like it"s the least we can do for our fans that support us. We try to reply to every single fan. It is very rare that we don"t answer a fan.

American and Chinese researchers have developed an innovative filtering material that can separate purified ethylene out of a mixture with ethane, potentially reducing the environmental cost of manufacturing plastic.

The study published on Thursday in the journal Science described the metal-organic framework (MOF), a class of substances that can separate individual hydrocarbons from the soup of organic molecules produced by oil refining processes.

Polyethylene, the most common type of plastic, is built from ethylene, one of the many hydrocarbon molecules found in crude oil refining.

The ethylene must be highly purified for the manufacturing process to work, but the current industrial technology for separating ethylene from all the other hydrocarbons is high-energy process that cools down the crude to more than 100 degrees below zero Celsius, according to the researchers.

Ethylene and ethane constitute the bulk of the hydrocarbons in the mixture, and separating these two is by far the most energy-intensive step.

Therefore, finding an alternative method of separation would reduce the energy needed to make the 170 million tons of ethylene manufactured worldwide each year.

MOFs look a bit like a half-built skyscraper of girders and no walls on a microscopic level. The girders have surfaces that certain hydrocarbon molecules will stick to firmly, so pouring a mixture of two hydrocarbons through the right MOF can pull one kind of molecule out of the mix, letting the other hydrocarbon emerge in pure form.

The researchers identified a particular framework called MOF-74 and modified it to contain a structure to make it able to attract ethane from their mixture, while consuming far less energy than usual.

They also used a technique called neutron diffraction to determine what part of the MOF"s surface attracts ethane, which explained why their innovation succeeded where other efforts have fallen short.

"Without the fundamental understanding of the mechanism, no one would believe our results," said Chen Banglin, a professor in the University of Texas at San Antonio, who led the team.

"We also think that we can try to add other small groups to the surface, maybe do other things. It"s a whole new research direction and we"re very excited," said Chen.

Chen and scientists at the National Institute of Standards and Technology and China"s Taiyuan University of Technology collaborated to make the innovation.

custom wristbands australia
personalized family tree bracelet
rainbow silicone wristbands
custom moon phase bracelet
fundraising rubber wristbands

Top Article

Random Articles