scholarly journals Analysis of synchronous magnetotelluric and magnetovariational regime observations for the Kentor mini test polygon

2021 ◽  
Vol 929 (1) ◽  
pp. 012023
Author(s):  
V E Matiukov ◽  
E A Bataleva
Keyword(s):  
Noise Reduction ◽  
Cross Section ◽  
Noise Detection ◽  
Electromagnetic Signals ◽  
Robust Processing

Abstract The paper discusses various approaches for processing and analysis of synchronous magnetotelluric and magnetovariational data obtained at the Kentor mini test polygon, which is located in the Baytic basin of the Chui region of Kyrgyzstan. The versions of noise reduction of received electromagnetic signals at the stage of robust processing are considered. The materials were processed using a remote reference technique for possible noise detection and calculate the additional components, such as a horizontal magnetic tensor for further interpretation of the obtained data. The dynamics of changes in the geoelectric cross-section for 2 sessions of researches by the tested profiles is considered.

scholarly journals Composite cylinder cross section tailoring for radiated noise reduction

1993 ◽  
Vol 94 (3) ◽  
pp. 1839-1839
Author(s):  
Colin P. Ratcliffe ◽  
Roger M. Crane ◽  
Armando L. Santiago
Keyword(s):  
Noise Reduction ◽  
Cross Section ◽  
Composite Cylinder ◽  
Radiated Noise

scholarly journals Biomimetic optimization research on wind noise reduction of an asymmetric cross-section bar

SpringerPlus ◽  
2016 ◽  
Vol 5 (1) ◽  
Author(s):  
Yingchao Zhang ◽  
Weijiang Meng ◽  
Bing Fan ◽  
Wenhui Tang
Keyword(s):  
Noise Reduction ◽  
Cross Section ◽  
Wind Noise ◽  
Wind Noise Reduction

scholarly journals Complexity Simulation on Application of Asymmetric Bionic Cross-Section Rod in Pantographs of High-Speed Trains

Complexity ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Yan Cao ◽  
Yu Bai ◽  
Qiangfeng Wang
Keyword(s):  
Noise Reduction ◽  
Porous Materials ◽  
Cross Section ◽  
High Speed ◽  
Aerodynamic Resistance ◽  
Aerodynamic Noise ◽  
Practical Application ◽  
Bionic Design ◽  
High Speed Trains ◽  
Bionic Structure

Ground transportation means and aircrafts with high-speed running are composed of many rod components. Aerodynamic noise generated therefrom is very outstanding. Reduction of the aerodynamic noise of rods becomes a hot topic in recent years. Most reported studies are tentative researches on aerodynamic noise of a pantograph or involve noise reduction of the pantograph with using porous materials or reshaping rod surfaces. Through using porous materials and reshaping rod surface, the aerodynamic noise of pantograph can be reduced to a certain extent, but the aerodynamic resistance will be increased and it is not convenient for practical application in engineering. Regarding this situation, the paper explores noise reduction performance of a feather on the back of a carrier pigeon and conducts the bionic design on rod surface. Through numerical simulation, the paper researches noise reduction performance of the bionic structure on the rod surface, reveals the mechanism of bionic noise reduction, and explores noise reduction effects of bionic structural rods on pantographs of the high-speed trains.

scholarly journals VLSI Implementation of LFA based Median Filter with Noise Detection Architecture for EMG Denoising

2020 ◽  
Vol 13 (6) ◽  
pp. 156-167
Author(s):  
Sharanabasappa Sharanabasappa ◽  
◽  
Pallikonda Babu ◽  
Keyword(s):  
Power Consumption ◽  
Noise Reduction ◽  
Flicker Noise ◽  
Median Filter ◽  
Evaluation Process ◽  
Computational Time ◽  
Noise Detection ◽  
Emg Signal ◽  
Noise Evaluation ◽  
Sample Width

Noise Reduction with less computational time and resources of the signal is a major requirement in signal processing. In the real-world scenario, Electromyography (EMG) signals often affect by various noises. The EMG signal requires noise reduction to obtain an accurate diagnosis process. In this study, Ladner-Fischer Adder (LFA) based Median Filter (MF) architecture is used to remove the noise from the EMG signal. The noise evaluation process is included in this proposed method to eliminate the flicker noise from the signal. The proposed LFA-MF method is simulated in the Cadence RTL compiler and Xilinx tool to evaluate the performance in terms of power, delay and Look Up Table (LUT). The objective of this work is to design the noise detection structure to avoid the denoising process for all the samples. This helps to reduce the hardware resources of the entire median filter architecture. The simulation result of LFA-MF architecture showed that it has lower power consumption and delay in noise reduction. The LFA-MF architecture has a power consumption of 1006548 nW in 16-bit sample width, while the existing method has 1537940 nW power consumption.

XUV Absorption Spectra of Carbon Ions

1988 ◽  
Vol 102 ◽  
pp. 71-73
Author(s):  
E. Jannitti ◽  
P. Nicolosi ◽  
G. Tondello
Keyword(s):  
Absorption Spectra ◽  
Cross Section ◽  
Theoretical Calculations ◽  
Photoionization Cross Section ◽  
Carbon Ions

AbstractThe photoabsorption spectra of the carbon ions have been obtained by using two laser-produced plasmas. The photoionization cross-section of the CV has been absolutely measured and the value at threshold, σ=(4.7±0.5) × 10−19cm2, as well as its behaviour at higher energies agrees quite well with the theoretical calculations.

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