Colas, the leading road construction and maintenance group, and its subsidiary, Somaro, a specialist in safety equipment and road signs and signals, in partnership with the Ecole Polytechnique, have developed a new type of noise barrier for roads with an unequalled level of sound absorption. Depending on the configuration, the barrier’s performance is 30% to 50% greater than that of the most effective sound panels currently available on the market.
This innovative product, for which a patent application has been filed and which has earned the Siemens Prize for Applied Research 2003 for the Ecole Polytechnique (the reputed French school of engineering), is based on a number of theoretical and experimental studies on the properties of irregularly shaped objects. It has been proved that the geometry of objects is of great importance in the deadening of noise. Resonators with a jagged or ragged geometrical shape can therefore deliver better sound deadening than ordinary geometrically smooth systems.
Considering these properties, and bearing in mind, moreover, that it is very difficult to manufacture irregularly shaped objects using inexpensive industrial processes (such as moulding, for instance), the challenge for the team consisted in developing the morphology of an acoustically absorbent material that would be appropriate for moulding.
New players, standardization and digitalization for more rail freight transport
16.07.2018 | Fraunhofer-Institut für System- und Innovationsforschung (ISI)
A helping (Sens)Hand
11.04.2018 | Fraunhofer-Institut für Arbeitswirtschaft und Organisation IAO
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...
17.08.2018 | Event News
08.08.2018 | Event News
27.07.2018 | Event News
17.08.2018 | Life Sciences
17.08.2018 | Event News
17.08.2018 | Materials Sciences