acoustic barrier
1Acoustic quieting — This article primarily discusses mechanical and acoustic noise. See Noise reduction for electronic noise. : For noise masking by saturation, see Sound masking or pink noise.Acoustic quieting is the process of making machinery quieter by damping… …
2Noise barrier — The sound tube in Melbourne, Australia, designed to reduce roadway noise without detracting from the area s aesthetics. A noise barrier (also called a soundwall, sound berm, sound barrier, or acoustical barrier) is an exterior structure designed… …
3Kas Oosterhuis — Este artículo está huérfano, pues pocos o ningún artículo enlazan aquí. Por favor, introduce enlaces hacia esta página desde otros artículos relacionados …
4Kas Oosterhuis — prof. Kas Oosterhuis Birth name Kas Oosterhuis Born 1951 Amersfoort, Netherlands Nationality Dutch Field …
5Medical ultrasonography — This article is about using ultrasound to image the human body. For imaging of animals in research, see Preclinical imaging. Sonography redirects here. For the tactile alphabet called sonography , see Night writing. Medical ultrasonography… …
6Magnetotellurics — Magnetotelluric station Magnetotellurics (MT) is an electromagnetic geophysical method of imaging the earth s subsurface by measuring natural variations of electrical and magnetic fields at the Earth s surface. Investigation depth ranges from… …
7Fontanelle — A fontanelle (or fontanel) is an anatomical feature on an infant s skull. Fontanelles are soft spots on a baby s head which, during birth, enable the bony plates of the skull to flex, allowing the child s head to pass through the birth canal. The …
8NuvoSonic — It has swimmer detection, underwater hailing by voice, and non lethal deterrent. It uses a sonar system called Parametric Port Security Sonar System (P2S3), which uses a narrow beam sound technology called Parametric Array Sonic Echo Ranging… …
9Operation Igloo White — Part of the Vietnam War Date 1968–1973 Location Southern Laos Result …
10microscope — /muy kreuh skohp /, n. 1. an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye. 2. (cap.) Astron. the… …
