Seated on the University of Leicester’s Space Research Centre rooftop, the novel instrument captures the sun’s rays and uses them to build up a daily picture, in 3-D, of the city’s air pollution. Just the size of a suitcase, the instrument has nine telescopes that protrude out and point in different directions across the city, collecting the sunlight every minute of every day. The trapped sunlight is bounced by mirrors inside the instrument straight into the mouth of a device that measures its properties. These are then used to work out how much light has been absorbed by air pollutants before reaching the instrument.
Crucially for Leicester, the instrument can measure levels of nitrogen-dioxide in the air, a pollutant produced by traffic and one which poses a particular problem for the air quality in the city centre.
Dr Paul Monks, lead scientist on this project said, "90% of the nitrogen dioxide problem in Leicester is attributable to road traffic. Because our instrument looks at the whole city, it can identify when and where the pollution hotspots will occur during a typical day." He added, "The level of detail we have seen is remarkable. For example, one Saturday we could pin-point the cause of air pollution to a football match, owing to the increased volume of traffic. On hot, sunny days when the air is still, such pollution could pose real health problems to residents".
Ather Mirza | alfa
Waste in the water – New purification techniques for healthier aquatic ecosystems
24.07.2018 | Eberhard Karls Universität Tübingen
Plenty of habitat for bears in Europe
24.07.2018 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig
New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference
Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...
Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...
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