News tagged with ammonia

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Planet's nitrogen cycle overturned by 'tiny ammonia eater of the seas'

Biology / Cell & Microbiology

created Sep 30, 2009 | popularity 5 / 5 (12) | comments 0

(PhysOrg.com) -- It's not every day you find clues to the planet's inner workings in aquarium scum. But that's what happened a few years ago when University of Washington researchers cultured a tiny organism from the bottom ...


Image from NASA video shows the International Space Station above the South Pacific

Discovery astronauts ready for final spacewalk

Space & Earth / Space Exploration

created Sep 05, 2009 | popularity 5 / 5 (1) | comments 0

Astronauts of the US space shuttle Discovery will venture again into outer space Saturday on a third and final spacewalk of their mission designed to help complete the International Space Station.


What's Smelly But Can Fuel a Car?

What's Smelly But Can Fuel a Car?

Technology / Energy

created Sep 02, 2009 | popularity 4.6 / 5 (18) | comments 16

Driving home from a seminar on fuel cell technology, Gerardine Botte was struck with a notion. Her idea was based on water electrolysis, a process used to produce hydrogen energy from water. Botte, an associate ...


Hydrogen Storage Gets New Hope

Hydrogen Storage Gets New Hope from Rechargeable 'Chemical Fuel Tank'

Chemistry / Materials Science

created Sep 01, 2009 | popularity 3.9 / 5 (18) | comments 19

(PhysOrg.com) -- A new method for "recycling" hydrogen-containing fuel materials could open the door to economically viable hydrogen-based vehicles.


Scientists Use Squid Ink to Draw its Jurassic Period Owner

Scientists Use Squid Ink to Draw its Jurassic Period Owner

Other Sciences / Archaeology & Fossils

created Aug 28, 2009 | popularity 4.3 / 5 (8) | comments 0

(PhysOrg.com) -- Scientists digging in Trowbridge, Wiltshire in England have uncovered the fossilized remains of a prehistoric squid-like creature that lived in the Jurassic period around 150 million years ...


New clues about a hydrogen fuel catalyst

New clues about a hydrogen fuel catalyst

Chemistry / Materials Science

created Aug 05, 2009 | popularity 4 / 5 (6) | comments 4

(PhysOrg.com) -- To use hydrogen as a clean energy source, some engineers want to pack hydrogen into a larger molecule, rather than compressing the gas into a tank. A gas flows easily out of a tank, but getting ...


New NASA Images Indicate Object Hits Jupiter

New Images Indicate Object Hits Jupiter

Space & Earth / Space Exploration

created Jul 21, 2009 | popularity 4.9 / 5 (22) | comments 11

(PhysOrg.com) -- Scientists have found evidence that another object has bombarded Jupiter, exactly 15 years after the first impacts by the comet Shoemaker-Levy 9.


Hepatic encephalopathy and prehepatic portal hypertension rat model

Medicine & Health / Research

created Jun 29, 2009 | popularity not rated yet | comments 0

Portal hypertension is responsible for severe and often lethal complications of cirrhosis. Another important syndrome is hepatic encephalopathy as a consequence of acute and chronic liver failure, which is characterized by ...


The first global map of ammonia emissions measured from space

The first global map of ammonia emissions measured from space

Space & Earth / Earth Sciences

created Jun 24, 2009 | popularity 4.5 / 5 (4) | comments 0

(PhysOrg.com) -- The first complete map of global ammonia emissions has recently been achieved using to satellite data. It reveals an underestimation of some of the ammonia concentrations detected by current ...


Fertilizer industry finds its alternative energy: corncobs

Space & Earth / Environment

created Jun 18, 2009 | popularity 3.7 / 5 (3) | comments 0

American agriculture has become increasingly dependent on foreign sources of natural gas, a key ingredient in the nitrogen fertilizer that farmers use to get high yields of crops such as corn and wheat.


High-pressure compound could be key to hydrogen-powered vehicles

Physics / Condensed Matter

created May 11, 2009 | popularity 2.7 / 5 (15) | comments 11

A hydrogen-rich compound discovered by Stanford researchers is packed with promise of helping overcome one of the biggest hurdles to using hydrogen for fuel--namely, how do you stuff enough hydrogen into a volume that is ...


New method monitors critical bacteria in wastewater treatment

New method monitors critical bacteria in wastewater treatment

Biology /

created Feb 04, 2009 | popularity 4 / 5 (1) | comments 0

(PhysOrg.com) -- Researchers have developed a new technique using sensors to constantly monitor the health of bacteria critical to wastewater treatment facilities and have verified a theory that copper is ...


Wasabi receptor can sense ammonia that causes pain

Medicine & Health / Research

created Nov 13, 2008 | popularity 5 / 5 (2) | comments 0

Japanese research group, led by Prof Makoto Tominaga of National Institute for Physiological Sciences in Japan, found that the receptor for hot taste of WASABI, Japanese horseradish usually eaten with Sushi, can sense alkaline ...


Seabird ammonia emissions contribute to atmospheric acidity

Space & Earth / Environment

created Sep 23, 2008 | popularity 1.5 / 5 (11) | comments 19

Ammonia emissions from seabirds have been shown to be a significant source of nitrogen in remote coastal ecosystems, contributing to nutrient enrichment (eutrophication) and acidification in ecosystems. While most ammonia ...