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News articles about "Nitrogen"

How trees play role in smog production

Smog
After years of scientific uncertainty and speculation researchers at the University of North Carolina at Chapel Hill show exactly how trees help create one of society's predominant environmental and health concerns air pollution Share This ... - Read More

Ceramic foam cleans up exhaust gases

Foam
The introduction next year of the Euro 6 exhaust gas standard means that catalytic converters will become more expensive above all for diesel vehicles Empa is working on a catalytic substrate made of ceramic foam ... - Read More

Recipe for low-cost, biomass-derived catalyst for hydrogen production

Catalyst
In a paper to be published in an upcoming issue of Energy & amp Environmental Science researchers at the U S Department of Energy's Brookhaven National Laboratory describe details of a low cost stable effective ... - Read More

Strengthening legumes to tackle fertilizer pollution

Fertilizer
The overuse of nitrogen fertilizers in agriculture can wreak havoc on waterways health and the environment Share This See Also Soil Types Organic Agriculture and Food Geochemistry Air Pollution Acid Rain Legume Sustainable agriculture Fertilizer ... - Read More

Source of organic matter affects Bay water quality

organic matter
Each time it rains runoff carries an earthy tea steeped from leaf litter crop residue soil and other organic materials into the storm drains and streams that feed Chesapeake Bay Share This See Also Sustainability ... - Read More

New research findings open door to zinc-oxide-based UV lasers, LED devices

Researchers from North Carolina State University have solved a long standing materials science problem making it possible to create new semiconductor devices using zinc oxide ZnO including efficient ultraviolet UV lasers and LED devices for ... - Read More

Scientists map all possible drug-like chemical compounds: Library of millions of small, carbon-based molecules chemists might synthesize

molecules, Chemical compounds, Compounds, Synthesize
Drug developers may have a new tool to search for more effective medications and new materials Share This See Also Chemistry Organic Chemistry Computer Programming Communications Chemical compound Molecule Chemical bond Resonance chemistry It's a ... - Read More

Nitrogen has key role in estimating carbon dioxide emissions from land use change

Emissions
A new global scale modeling study that takes into account nitrogen a key nutrient for plants estimates that carbon emissions from human activities on land were 40 percent higher in the 1990s than in studies ... - Read More

Nitrogen has key role in estimating CO2 emissions from land use change

Emissions
A new global scale modeling study that takes into account nitrogen a key nutrient for plants estimates that carbon emissions from human activities on land were 40 percent higher in the 1990s than in studies ... - Read More

Long-term exposure to fine particles of traffic pollution increases risk of heart disease

The association between road traffic and heart disease has been suggested in several studies In 2012 a large prospective cohort study from Denmark showed that traffic noise was significantly associated with risk of heart attack ... - Read More

Pollution plumes in Paris air are richer in gaseous aromatic compounds than in Los Angeles

Aromatic, Compounds
What is the origin of the volatile hydrocarbons other than methane present in city air Mainly gasoline powered vehicles 1 according to a study carried out by a French US team 2 including French researchers ... - Read More

Turning algae into clean energy and fish food; helping Africans to irrigate crops

fish, crops
Could algae that feast on wastewater produce clean bio fuels and a healthful supply of fish food Can impoverished African community gardeners learn to use and maintain a simple centuries old non electric water pump ... - Read More

Research uses mirrors to make solar energy cost competitive

If the current national challenge to make solar energy cost competitive with other forms of energy by the end of this decade is met Ranga Pitchumani the John R Jones III Professor of Mechanical Engineering ... - Read More

Surprising findings on hydrogen production in green algae

New research fuels hope of efficient hydrogen production with green algae being possible in the future despite the prevailing scepticism based on previous research The study changes the view on the potential of green algae ... - Read More

Reaction rates of second key atmospheric component measured

Researchers at Sandia National Laboratories' Combustion Research Facility the University of Manchester Bristol University University of Southampton and Hong Kong Polytechnic have successfully measured reaction rates of a second Criegee intermediate CH3CHOO and proven that ... - Read More

Cost-Saving Measure to Upgrade Ethanol to Butanol -- A Better Alternative to Gasoline

despite several disadvantages Ethanol for instance has a lower energy content per gallon than gasoline which can reduce fuel mileage Ethanol also has a corrosive effect on car engines and can’t easily be used in ... - Read More

Innovative self-cooling, thermoelectric system consumes no electricity

Researchers at the UPNA NUP Public University of Navarre have produced a prototype of a self cooling thermoelectric device that achieves free cooling of over 30ºC in devices that give off heat It is a ... - Read More

Pioneering study calculates Arctic Ocean nutrient budget

Ocean, Ocean
The first study of its kind to calculate the amount of nutrients entering and leaving the Arctic Ocean has been carried out by scientists based at the National Oceanography Centre Southampton Share This See Also ... - Read More

Spring rains bring life to Midwest granaries but foster Gulf of Mexico 'Dead Zone'

Water, Water, Water
algae in the Gulf The algae bloom and eventually die and decay removing oxygen from the water The result is water too oxygen depleted to support life ” An oceanographer and executive director of the ... - Read More

Spring Rains Bring Life to Midwest Granaries but Foster Gulf of Mexico 'Dead Zone'

algae in the Gulf The algae bloom and eventually die and decay removing oxygen from the water The result is water too oxygen depleted to support life ” An oceanographer and executive director of the ... - Read More
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