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Keyword: membrane

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  • ORNL-led team demonstrates desalination with nanoporous graphene membrane

    03/25/2015 6:59:31 PM PDT · by ckilmer · 25 replies
    ornl.gov ^ | 2015 | Dawn Levy
    News   Home  |  ORNL  |  News  |  News Releases  |  2015 SHARE   Media Contact: Dawn LevyCommunications865.576.6448   ORNL-led team demonstrates desalination with nanoporous graphene membrane    Researchers created nanopores in graphene (red, and enlarged in the circle to highlight its honeycomb structure) that are stabilized with silicon atoms (yellow) and showed their porous membrane could desalinate seawater. Orange represents a non-graphene residual polymer. Image credit: Oak Ridge National Laboratory, US Dept. of Energy (hi-res image) OAK RIDGE, Tenn., March 25, 2015—Less than 1 percent of Earth’s water is drinkable. Removing salt and other minerals from our biggest available source of water—seawater—may help satisfy a growing...
  • Insane in the membrane

    08/24/2011 9:57:17 PM PDT · by Nachum · 4 replies
    Examiner,com ^ | 8/24/11 | Bill Turner , Boise Conservative Examiner
    Insane In The Membrane: Madness takes its toll in the mob based liberal horror show. No one in the liberal goon squad has the ability to think for themselves. They use the same mindless talking points, attacking in clusters, be it on Face Book, Twitter, or in public. Their mindless pack behavior extends to the vile emails they send to conservative media sources, bloggers and anyone who challenges their delusion with such things as fact and logic. If they spent the same time, energy and effort reading and educating themselves, they would suffer from a breakdown, as their reality would...
  • Invisible membrane sorts molecules

    02/15/2007 9:38:19 PM PST · by LibWhacker · 17 replies · 482+ views
    Cosmos Online ^ | 2/16/07
    NEW YORK: A newly designed porous membrane, so thin that it's invisible edge-on, might revolutionise the way doctors and scientists manipulate objects as small as molecules. The 50-atom thick filter can withstand surprisingly high pressures and may be a key to better separation of blood proteins for dialysis patients, speeding ion exchange in fuel cells and purifying air and water at the nanoscopic level. "It's amazing, we have a material as thin as some of the molecules it's sorting, and riddled with holes - but it can withstand enough pressure to make real-world nano-filtering a practical reality," said Christopher Striemer...
  • Engineers develop revolutionary nanotech water desalination membrane

    11/10/2006 11:58:15 AM PST · by ckilmer · 31 replies · 1,247+ views
    physorg ^ | November 06, 2006
    Engineers develop revolutionary nanotech water desalination membrane UCLA Engineering's Eric Hoek holds nanoparticles and a piece of his new RO water desalination membrane. Credit: UCLA Engineering/Don Liebig Researchers at the UCLA Henry Samueli School of Engineering and Applied Science today announced they have developed a new reverse osmosis (RO) membrane that promises to reduce the cost of seawater desalination and wastewater reclamation. Reverse osmosis desalination uses extremely high pressure to force saline or polluted waters through the pores of a semi-permeable membrane. Water molecules under pressure pass through these pores, but salt ions and other impurities cannot, resulting in...
  • USAF, USN, NASA Photos of the Day: Flare-Dazzle. Falling. Surfacing. Oil. Saving a 4-day-old baby!

    09/19/2006 10:54:54 PM PDT · by EnjoyingLife · 2 replies · 2,402+ views
    United States Air Force (Air Force Link - Photos) ^ | December 5, 2002 | Senior Airman Greg Davis
    Photo #1. Somewhere on planet Earth a USAF C-141B Starlifter Cargo and Troop Transport lights up the sky with a spectacular and awesome flare release. USAF Image ID: 021205-O-9999G-017. PhotographerSenior Airman Greg Davis, United States Air Force Courtesieshttp://www.af.mil/shared/media/photodb/photos/021205-O-9999G-017.jpghttp://ChamorroBible.org/gpw/gpw-20060914.htm (photo as sized above, ALT text, caption info) Photo #2. Italy, August 28, 2006: A Member of Explosive Ordnance Mobile Unit Eight (EODMU-8) practices static line parachute proficiency operations with combat equipment on board Naval Air Station (NAS) Sigonella, Italy. USN Image ID: 060828-N-3572Z-025. PhotographerMass Communication Specialist Seaman Chad Zenthoefer, United States Navy Courtesieshttp://www.news.navy.mil/view_single.asp?id=38550 (caption)http://www.news.navy.mil/management/photodb/photos/060828-N-3572Z-025.jpghttp://ChamorroBible.org/gpw/gpw-20060905.htm (picture as sized above, ALT text)...
  • Powell to Stephie: Your Boss, Not Mine, Let North Korea Have Nukes

    12/30/2002 9:36:17 AM PST · by vannrox · 13 replies · 431+ views
    Newsmax ^ | Sunday, Dec. 29, 2002 10:35 a.m. EST | Editorial Staff
    NewsMax.com   Sunday, Dec. 29, 2002 10:35 a.m. ESTPowell to Stephie: Your Boss, Not Mine, Let North Korea Have Nukes Appearing on ABC's "This Week" Sunday morning, Secretary of State Colin Powell challenged host George Stephanopoulos over the former Clinton aide's contentions that his old boss had managed to keep the North Korean nuclear crisis in check while the Bush administration had bungled the situation. Discussing the standoff over Pyongyang's decision to reopen old nuclear reactors at the rogue state's Yongbyon nuclear facility, the former White House communications director argued that Clinton forced North Korea to back down. The exchange...