Results 201 to 210 of about 116,729 (347)

Sound insulation issues

open access: yes, 2004
This paper gives an overview of three topics related to sound insulation in buildings. The first project included laboratory and field measurements of sound insulation against aircraft noise. As well as various technical papers, the project produced software to help in the design of adequate sound insulation.
openaire   +1 more source

Estimating red deer Cervus elaphus population density using drones in a steep and rugged terrain

open access: yesWildlife Biology, EarlyView.
Precise and accurate information about population density, crucial for wildlife management, is difficult to obtain for elusive species living in dense forests or steep and inaccessible terrain. Using unmanned aerial vehicles (UAVs), we developed a method for obtaining absolute population estimates of ungulates living in steep, rugged, and partly ...
Julie Bommerlund   +3 more
wiley   +1 more source

Thermal and Sound Insulation Properties of Organic Biocomposite Mixtures. [PDF]

open access: yesPolymers (Basel)
Pop MA   +5 more
europepmc   +1 more source

A Dual‐Frequency Sensitivity Model for Optical Fibre Ultrasonic Sensors in Power Transformer Partial Discharge Detection

open access: yesHigh Voltage, EarlyView.
ABSTRACT The detection of partial discharges (PD) on the power transformer tank demands higher sensitivity in ultrasonic detection. To target the detection frequency band for sensor optimisation and enhance sensitivity, this paper presents a dual‐frequency sensitivity model for optical fibre ultrasonic sensors.
Sihan Wang   +4 more
wiley   +1 more source

Sound insulation auralization filters design for outdoor moving sources

open access: green, 2019
Muhammad Imran   +2 more
openalex   +1 more source

Sound Insulation of Porous Plates [PDF]

open access: bronze, 2004
Anke Busse, Martin Schanz
openalex   +1 more source

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