Low‐frequency noise in very high mobility modulation‐doped structures

1992 ◽  
Vol 61 (24) ◽  
pp. 2926-2928 ◽  
Author(s):  
J. R. Phillips ◽  
K. Tsubaki ◽  
T. Saku ◽  
S. Tarucha
Keyword(s):  
Low Frequency ◽  
High Mobility ◽  
Frequency Noise ◽  
Low Frequency Noise ◽  
Very High

Attenuation of Earmuffs against Low Frequency Noise

1987 ◽  
Vol 6 (4) ◽  
pp. 167-174 ◽  
Author(s):  
Jukka Starck ◽  
Jussi Pekkarinen ◽  
Seppo Aatola
Keyword(s):  
Low Frequency ◽  
Peak Level ◽  
Standard Test ◽  
Frequency Noise ◽  
Low Frequency Noise ◽  
Low Frequencies ◽  
Hearing Protectors ◽  
Noise Measurements ◽  
Attenuation Values ◽  
Very High

The standard test for hearing protectors cannot be applied to determine the attenuation values for low frequency noise or for noise consisting of high intensity impulses. Moreover, the aging of earmuffs and the use of spectacles may cause leakage which decreases attenuation mainly at low frequencies. To study the real attenuation of earmuffs, noise measurements were taken outside and inside the earmuffs of workers at industrial work places, and of military conscripts when shooting with different firearms. The effect of spectacles on the attenuation was measured under laboratory conditions. In industrial workplaces the average attenuation was 4 dB in the 63 and 125 Hz octave bands. For shooting noise the attenuation was found to be good for small calibre weapons but poor for large calibre weapons, which generate very high peak level impulses at low frequencies. Spectacles decreased earmuff attenuation by 9–11 dB.

Investigation of Low-Frequency Noise Properties in High Mobility ZnON Thin-Film Transistors

2016 ◽  
pp. 1-1
Author(s):  
Chan-Yong Jeong ◽  
Hee-Joong Kim ◽  
Dae-Hwan Kim ◽  
Hyun-Suk Kim ◽  
Eok Kim ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
Low Frequency ◽  
High Mobility ◽  
Frequency Noise ◽  
Low Frequency Noise

Low-Frequency Noise in High-Mobility a-InGaZnO/InSnO Nanowire Composite Thin-Film Transistors

2017 ◽  
Vol 38 (11) ◽  
pp. 1540-1542 ◽  
Author(s):  
Da Wan ◽  
Ablat Abliz ◽  
Meng Su ◽  
Chuangsheng Liu ◽  
Changzhong Jiang ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
Low Frequency ◽  
High Mobility ◽  
Composite Thin Film ◽  
Frequency Noise ◽  
Low Frequency Noise

Insights in low frequency noise of advanced and high-mobility channel transistors

2012 ◽  
Author(s):  
E. Simoen ◽  
T. Romeo ◽  
L. Pantisano ◽  
A. Luque Rodriguez ◽  
J. A. Jimenez Tejada ◽  
...  
Keyword(s):  
Low Frequency ◽  
High Mobility ◽  
Frequency Noise ◽  
Low Frequency Noise ◽  
High Mobility Channel

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

Simulation of Low Frequency Noise in a CCTWT

1999 ◽  
Author(s):  
Charles K. Birdsall ◽  
J. P. Varboncoeur ◽  
P. J. Christensen
Keyword(s):  
Low Frequency ◽  
Frequency Noise ◽  
Low Frequency Noise
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