Search results for temperature and noise

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The Cocktail Party Effect

…Season 5. What cocktail parties teach us Today’s Wall Street Journal has an article on “the cocktail party effect” which talks about the role of background noise on our ability…

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TRB e-circular “Critical Issues in Aviation and the Environment” published

…contributed comments to these sections. Many thanks go to the authors (listed below, by paper): Environmental Impacts of Aviation on Human and Natural Resources Noise: Natalia Sizov (Federal Aviation Administration),…

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ERAU Is Pushing the Envelope Yet Again!

…boundless enthusiasm. And boy did we ever! Here is an article on another example of ERAU pushing for innovation: developing electric propulsion systems to reduce noise and emissions: http://daytonatimes.com/2014/05/15/e-rau-to-develop-an-electric-aircraft/…

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TBT – HMMH’s First Model

…Easy Data Entry. It was used with a digitizer to enter coordinates for roadways, barriers and receivers to be used in the STAMINA highway noise prediction model.    …

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Monitoring System (NOMS) Procurement, Baltimore/Washington Int’l Thurgood Marshall Airport

…HMMH is assisting the Maryland Department of Transportation Maryland Aviation Administration (MDOT MAA) in the replacement of their noise and operations monitoring system (NOMS) at Baltimore/Washington International Thurgood Marshall…

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Sound Insulation Grant Programs, Los Angeles International Airport

…provided acoustical monitoring services in the early 2000s for the City of Inglewood, California Residential Sound Insulation Program. The City manages one of the LAWA programs to mitigate noise generated…

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HMMH Exhibits Wind Energy Services at Community Wind Conference

…sound studies to assess potential noise exposure from a proposed wind turbine on neighbors, which is one of HMMH’s developing areas of specialty. While Portland was seasonally cool and rainy…

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Throwback Thursday – Where Are They Now?

…disclose who comes first, and btw, they are NOT brothers – is currently having the time of his life work with FAA to update the aircraft noise annoyance dose-response curve…

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How did cities used to sound?

…of the internal combustion engine – 1895 – the most notable difference for me was the absence of low frequency noise. But add unmuffled cars and trucks (1935), with back…

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Portland (ME) Airport’s Geothermal Project – Providing the Cooling (and heating) Power of an Iceberg

…cool the water from its base temperature of 55 degrees Fahrenheit before circulating it. The footprint of the entire system occupies a room about the size of an elementary school…

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