Low-frequency noise, reliability, and quality of high-speed avalanche breakdown detectors

2004 ◽  
Author(s):  
Saulius Smetona ◽  
Jonas Matukas ◽  
Vilius Palenskis ◽  
M. Olechnovicius ◽  
Kazys A. Kaminskas ◽  
...  
Keyword(s):  
High Speed ◽  
Low Frequency ◽  
Avalanche Breakdown ◽  
Frequency Noise ◽  
Low Frequency Noise

Estimating the Quality of Thermionic Cathodes for Microwave Vacuum Tubes Using the Low-Frequency Noise Parameters

Vestnik MEI ◽  
2018 ◽  
Vol 5 (5) ◽  
pp. 120-127
Author(s):  
Mikhail D. Vorobyev ◽  
◽  
Dmitriy N. Yudaev ◽  
Andrey Yu. Zorin ◽  
◽  
...  
Keyword(s):  
Low Frequency ◽  
Frequency Noise ◽  
Low Frequency Noise ◽  
Noise Parameters ◽  
Thermionic Cathodes ◽  
Vacuum Tubes

Active Attenuation of Low Frequency Noise Radiated from Tunnel Exit of High Speed Train

1994 ◽  
Vol 13 (2) ◽  
pp. 39-47
Author(s):  
Min Liang ◽  
Toshiya Kitamura ◽  
Katsushi Matsubayashi ◽  
Toshifumi Kosaka ◽  
Tatsuo Maeda ◽  
...  
Keyword(s):  
Pressure Gradient ◽  
Pressure Wave ◽  
High Speed ◽  
Outer Space ◽  
Low Frequency ◽  
Close Relation ◽  
Frequency Noise ◽  
High Speed Train ◽  
Low Frequency Noise ◽  
Active Cancellation

A pressure wave occurs at the instant when a high speed train enters into a long tunnel. The wave propagates downstream to the tunnel exit and low frequency noise is radiated from the exit to outer space. The low frequency noise causes a lot of problems1 to the residents living near the exit and has a close relation with the pressure gradient of the pressure wave. To attenuate the low frequency noise, an active cancellation system rather than a passive one is developed. This research uses a model tunnel to examine the characteristic of the pressure wave and investigates the possibility to reduce the low frequency noise by reducing the pressure wave gradient with active cancellation.

Study of Low Frequency Noise Occurred from Tunnel Entrance of High Speed Train

2001 ◽  
Vol 2001.11 (0) ◽  
pp. 120-122
Author(s):  
Toshiya KITAMURA ◽  
Yasuhiko OKAWA ◽  
Toshikazu KATO ◽  
Shinji YAMADA
Keyword(s):  
High Speed ◽  
Low Frequency ◽  
Frequency Noise ◽  
High Speed Train ◽  
Low Frequency Noise ◽  
Tunnel Entrance

scholarly journals A Review of the Potential Impacts of Wind Turbine Noise in the Australian Context

2020 ◽  
Vol 48 (2) ◽  
pp. 181-197
Author(s):  
John Laurence Davy ◽  
Kym Burgemeister ◽  
David Hillman ◽  
Simon Carlile
Keyword(s):  
Wind Turbine ◽  
Wind Turbines ◽  
Management Strategies ◽  
Low Frequency ◽  
Frequency Noise ◽  
Low Frequency Noise ◽  
Sleep Health ◽  
Wind Turbine Noise ◽  
Objective Basis

Abstract This manuscript describes a range of technical deliberations undertaken by the authors during their work as members of the Australian Government’s Independent Scientific Committee on Wind Turbines. Central to these deliberations was the requirement upon the committee to improve understanding and monitoring of the potential impacts of sound from wind turbines (including low frequency and infrasound) on health and the environment. The paper examines existing wind turbine sound limits, possible perceptual and physiological effects of wind turbine noise, aspects of the effects of wind turbine sound on sleep health and quality of life, low-frequency noise limits, the concept of annoyance including alternative causes of it and the potential for it to be affected by low-frequency noise, the influence of amplitude modulation and tonality, sound measurement and analysis and management strategies. In so doing it provides an objective basis for harmonisation across Australia of provisions for siting and monitoring of wind turbines, which currently vary from state to state, contributing to contention and potential inequities between Australians, depending on their place of residence.

Low Frequency Noise in High Speed SiGe:C HBTs after Forward and Mixed-Mode Stress

2009 ◽  
Author(s):  
Malick Diop ◽  
Cedric Leyris ◽  
Nathalie Revil ◽  
Mathieu Marin ◽  
Gérard Ghibaudo ◽  
...  
Keyword(s):  
Mixed Mode ◽  
High Speed ◽  
Low Frequency ◽  
Frequency Noise ◽  
Low Frequency Noise ◽  
Mode Stress

scholarly journals Low-Frequency Noise Radiated from a High-Speed Train Passing an Open Section

2007 ◽  
Vol 73 (735) ◽  
pp. 2275-2282 ◽  
Author(s):  
Hajime TAKAMI ◽  
Katsuhiro KIKUCHI ◽  
Hiroshi MAEKAWA ◽  
Takeshi KURITA ◽  
Yusuke WAKABAYASHI
Keyword(s):  
High Speed ◽  
Low Frequency ◽  
Frequency Noise ◽  
High Speed Train ◽  
Low Frequency Noise ◽  
Open Section

Low frequency noise analysis as a diagnostic tool to assess the quality of 0.25μm Ti-silicided poly lines

1998 ◽  
Vol 38 (6-8) ◽  
pp. 925-929 ◽  
Author(s):  
E.P. Vandamme ◽  
I. De Wolf ◽  
A. Lauwers ◽  
L.K.J. Vandamme
Keyword(s):  
Diagnostic Tool ◽  
Noise Analysis ◽  
Low Frequency ◽  
Frequency Noise ◽  
Low Frequency Noise
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