Portable Low-Frequency Noise Reduction Device for Both Small Open and Closed Spaces
نویسندگان
چکیده
منابع مشابه
Closed Reduction versus Open Reduction and Pin Fixation in Pediatric Type III Supracondylar Humeral Fractures
Background Supracondylar humeral fractures constitute about 60% and 13% of all pediatric elbow and pediatric skeletal fractures, respectively, with a peak incidence in the 5-7 years age group. The aim of this study was to evaluate and compare closed reduction with open reduction and pin fixation in type III supracondylar humeral fractures in children younger than...
متن کاملAmbient Noise Reduction for Portable PC's and Tablets (White Paper)
Until recently, noise suppression for telecommunications has been associated, almost exclusively, with corded and mobile phones. These small hand-held devices assumed particular use-cases; where voice generally entered from a microphone near the mouth, while an output stream exiting from the other end of the device reached only one ear. Over the years, the need for ambient noise suppression for...
متن کاملAn Experimental Investigation of Enclosure’s Effect on Noise Reduction in Portable Generators (Technical Note)
The portable generators are the main means of compensating the shortage of national electricity power as in Iraq. However, their noise causes a huge disturbance, uncomforting and loss of concentration of the nearby resident. This problem requires a solution because most shops and residential houses use generators. Covering method is a simple and relatively low cost one for reduction of generato...
متن کاملDesign and Fabrication of a Portable 1-DOF Robotic Device for Indentation Tests
There are many tactile devices for indentation examinations to measure mechanical properties of tissue. The purpose of this paper is to develop a portable indentation robotic device to show its usability for measuring the mechanical properties of a healthy abdominal tissue. These measurements will help to develop suitable mathematical models representing abdominal tissue. A 1-DOF portable robot...
متن کاملLow frequency noise and annoyance.
Low frequency noise, the frequency range from about 10 Hz to 200 Hz, has been recognised as a special environmental noise problem, particularly to sensitive people in their homes. Conventional methods of assessing annoyance, typically based on A-weighted equivalent level, are inadequate for low frequency noise and lead to incorrect decisions by regulatory authorities. There have been a large nu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Shock and Vibration
سال: 2016
ISSN: 1070-9622,1875-9203
DOI: 10.1155/2016/6241935