noise absorbing News

  • Urban greening reduces noise pollution

    Green roofs have the potential to significantly reduce road traffic noise in the urban environment, according to a new study. The results suggest that greening of roofs and walls with materials suitable for growing plants softens the urban environment keeping sound levels low, whereas hard, manmade structures tend to amplify traffic noise. The Environmental Noise Directive (2002/49/EC)1 ...

  • `Anti-noise` silences wind turbines

    If wind energy converters are located anywhere near a residential area, they must never become too noisy even in high winds. Most such power units try to go easy on their neighbors' ears, but even the most careful design cannot prevent noise from arising at times: One source is the motion of the rotor blades, another is the cogwheels that produce vibrations in the gearbox. These are relayed to ...

  • How to Prevent Industrial Noise Induced Hearing Loss - Monitoring and Reducing the Risk of Noise in the Workplace

    The risk of noise in the workplace is a very real concern for individuals and companies all over the UK. Noise induced hearing loss (NIHL) has a debilitating effect on employees’ everyday and working lives and puts them at risk of not being able to hear alarms and warnings. NIHL also poses potentially devastating legal and financial threats to your company. This article ...


    By Pulsar Instruments plc

  • Silencing wind turbines - active damping system developed to cut noise

    Wind power is one of the world's fastest growing energy technologies and proponents say the electricity generated by wind turbines is clean and environmentally friendly. But opponents are quick to point out a number of drawbacks including noise pollution. Due to the humming noises they emit, these turbines operate partially to keep residents happy. Partial use, however, cuts power output. A group ...

  • Rising levels of greenhouse gases may aggravate rising tide of noise from ships, oil exploration and military sonar

    The world's oceans and seas are becoming noisier as a result of increases in vessels; a rise in seismic surveys and because of the new generation of military sonars , an alliance of wildlife groups said today. They are concerned that the cacophony of sounds pervading the once seas are intensifying threats to marine mammals who use sound, sometimes over great distances, to communicate, forage for ...

  • Blackfriars Station to be the first SilentTrack® installation in the UK

    The SilentTrack® noise damping system, developed by Tata Steel, has been installed to date on over 120km of railway track worldwide. It will be installed in the UK at Blackfriars station as part of work to ensure that the enhanced Thameslink Route still complies with noise legislation despite the increase in rail traffic. David Benton, Product Manager for Tata Steel explains, "The Thameslink ...


    By Tata Steel

  • Green walls show promise as sound barriers for buildings

    Green walls, designed so they are covered in vegetation, could help cut the amount of noise that enters buildings, a new study has found. In lab. tests, researchers found that a modular green wall system reduced sound levels by 15 decibels (dB). This leads them to believe that it is a promising sound reduction device that could improve quality-of-life for city residents. Green walls and green ...

  • Domestic disturbance: More than a third of Britons disturbed by noisy neighbours, with 17.5 million people affected in the past two years

    D• 1.8 million Britons claim noisy neighbours have made their lives a misery in the last two years and they cannot enjoy their own homes • Stereos and televisions played at unacceptably high volume were cited as the biggest cause of domestic noise pollution • Over 60,000 Britons have been involved in physical fights with neighbours after complaining about noise New research by Rockwool, the ...


  • Announcement: 2nd International FINE!Dust-Free Congress

    2nd International FINE!Dust-Free Congress in Klagenfurt on Lake Wörthersee (A), 1 - 2.10.2009 Early registration discount only till 30.6.2009! The programme will focus on the new EU Air Quality Directive, costs, causes and the health impacts of fine-dust pollution. Douglas Dockery from the Harvard School of Public Health - one of the most renowned fine-dust experts and author of numerous ...


  • Fine dust (or particulate matter): Top speaker from Europe and the USA will take the floor.

    2nd International Congress in Klagenfurt on Lake Wörthersee (A), 1 to 2 October 2009 The programme will focus on the new EU Air Quality Directive, costs, causes and the health impacts of fine-dust pollution. Douglas Dockery from the Harvard School of Public Health - one of the most renowned fine-dust experts and author of numerous publications - will present the latest medical findings on ...


  • Microsoft breaks record for quietest place on earth

    Microsoft® has broken a Guinness World Record to become officially recognised as home to the quietest room on Earth. Staff at the company’s Redmond, Washington campus in the USA, beat the standing record of minus 13 dB(A), earlier this month, after the company’s anechoic chamber proved to have an ambient background noise level as low as minus 20 dB(A). Tests were carried out with ...

  • Announcement: 2nd International FINE!Dust-Free Congress

    2nd International FINE!Dust-Free Congress in Klagenfurt on Lake Wörthersee (A), 1 - 2.10.2009 Early registration discount only till 30.6.2009! The programme will focus on the new EU Air Quality Directive, costs, causes and the health impacts of fine-dust pollution. Douglas Dockery from the Harvard School of Public Health - one of the most renowned fine-dust experts and author of numerous ...


  • Brüel & Kjær sponsors aerospace laboratory at Virginia Tech

    The laboratory is part of Virginia Tech’s new National Institute of Aerospace (NIA) Research and Innovation Laboratories in Hampton, Virginia. It contains state-of-the-art instrumentation and equipment for measuring and analyzing vibration and sound, and is sponsored by Brüel & Kjær. NIA’s labs are directed by Christopher R. Fuller, who is Virginia Tech's Samuel Langley ...

  • TriStar2 S – now with monochromator technology

    With the TriStar² S Berthold Technologies introduces monochromator technology in its basic multi-label microplate reader. The TriStar² S is capable of these reading technologies: ...

  • Plymovent launches the MDB-COMPACT: the new range of compact filter units

    With the MDB-COMPACT Plymovent brings you the proven and unbeaten technology of the MultiDust Bank in a compact and pre-assembled range of models. This range is developed for applications that need a small dedicated filter unit, like: Robotic welding and cutting cells Cutting tables Welding bays and booths with up to 6 extraction arms continuously ...


    By Plymovent Group BV

  • Testing for Styrene is becoming increasingly important in the workplace

    The US Agency for Toxic Substances and Disease Registry (ATSDR) states that human exposure to high levels of styrene may induce adverse nervous system effects.Styrene, also known as vinyl benzene, as well as numerous other names, is an organic compound found in many manufacturing processes. Under normal conditions, this aromatic hydrocarbon is an oily liquid. It evaporates easily and has a sweet ...


  • New Mega Mills for large and heavy parts

    Hellweg Maschinenbau GmbH & Co. KG presented at FAKUMA 2005 the new 600 series granulator ('Mega Mill') for the first time. The new granulators round off the product range at the top end. They are characterised by the extremely high stability of the entire machine housing. The high moment of gyration of the rotor, that is machined out of one ...

  • Agilent Technologies introduces diode array detector for LC, Delivering 30x Wider Linear UV-Range with up to 30x Higher Sensitivity

    Agilent Technologies Inc. (NYSE: A) today introduced the 1200 Infinity Series high dynamic range diode array detector for liquid chromatography. It delivers 30 times wider linear UV-range and up to 30 times higher sensitivity than previous detectors. That makes the 1200 Infinity Series detector ideal for analyzing mixtures that contain widely different ...


    By Agilent Technologies, Inc.

  • Pulsar’s Ultrasonic Success with Super-light Fumed Silica Measurement

    Fumed Silica has a bulk density of around 30g/l, and a surface area of sometimes hundreds of square metres per gram. It is used as a thickening agent in everything from gel batteries to non-drip paint, as a light-scattering agent in cosmetics and a toothpaste abrasive. However, a material as light as this presents significant difficulties in bulk measurement. After a number of failed attempts, ...

  • Air Compliance Testing Now Offers FTIR

    Commonly referred to as FTIR, Fourier Transform Infrared Spectroscopy is the most recent addition to the Air Compliance Testing technological toolbox. FTIR can be used to identify chemicals from paints, polymers, coatings, spills, drugs, and contaminants (qualitative analysis). FTIR is likely the most powerful tool for identifying types of chemical bonds (functional groups). The wavelength of ...

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