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1/f frequency noise

1/f noise in the half metallic oxides CrO2, Fe3O4, and La2/3Sr1/3MnO3

1/f noise in the half metallic oxides CrO2, Fe3O4, and La2/3Sr1/3MnO3

... of 1/f resistance fluctuations, 16–19 sev- eral orders of magnitude larger than the electrical noise typi- cally observed in metallic ...intrinsic 1/f noise could limit the ...

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The Application of a Sound-Intensity Analysis and an Experimental Modal Analysis for Determining the Noise Emissions of a Diesel Engine

The Application of a Sound-Intensity Analysis and an Experimental Modal Analysis for Determining the Noise Emissions of a Diesel Engine

... o f the spectrum in Figure 2 consist of the engine parts' natural ...o f the crankshaft, the flywheel, the connecting rods, the oil pumps and other parts were also ...o f the parts directly involved ...

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Fractional noises: diffusive model for CCD imager band-pass acquisition chain

Fractional noises: diffusive model for CCD imager band-pass acquisition chain

... the frequency domain may be employed and the optimal solution, with respect to the signal to noise ratio, depends on the matching between the acquisition chain transfer function and the noise power ...

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Thermodynamical Phase Noise in Oscillators Based on L C Resonators

Thermodynamical Phase Noise in Oscillators Based on L C Resonators

... of frequency f   2π whose real part is Conductance G(jω) and whose imaginary part is Susceptance B(jω): Y   j   G   j   jB   j  , where the imaginary unit j means that currents through G(jω) ...

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Dealing with front-end white noise on differentiated measurements such as frequency and ROCOF in power systems

Dealing with front-end white noise on differentiated measurements such as frequency and ROCOF in power systems

... image frequency, and linear phase response can be ...Fig. 1 becoming a conventional rectangular-windowed ...while frequency varies from ...of f T to the measured value of f C in Fig. ...

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Low Frequency Noise in Graphene Tunnel Junctions

Low Frequency Noise in Graphene Tunnel Junctions

... The noise spectra for the single-trap models (Ia and IIa) have a Lorentzian frequency dependence and as more environmental fluctuators are activated in the models Ib and IIb, a 1/f ...

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Design of an Optimal High Pass Filter in Frequency   Wave Number (F K) Space for Suppressing Dispersive Ground Roll Noise from Onshore Seismic Data

Design of an Optimal High Pass Filter in Frequency Wave Number (F K) Space for Suppressing Dispersive Ground Roll Noise from Onshore Seismic Data

... first F-K filter was designed to mute (cut off) horizontally from the frequency – wave number spectrum frequencies below ...off frequency in the designed f-k filter was informed by the known ...

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1 / f α noise and generalized diffusion in random Heisenberg spin systems

1 / f α noise and generalized diffusion in random Heisenberg spin systems

... the noise generated by these random-bond Heisenberg spin chains with a 1/ | J | distri- bution captures some interesting facets (as seen in ...tioned F/AF system, see also Appendix D) of exper- ...

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Very low 1/f barrier noise in sputtered MgO magnetic tunnel junctions with high tunneling magnetoresistance

Very low 1/f barrier noise in sputtered MgO magnetic tunnel junctions with high tunneling magnetoresistance

... low frequency barrier noise in MTJs with sputtered MgO, chang- ing the growth ...barrier noise as low as ...recorded noise parameter in the P state at 300 K is comparable with that in MTJs ...

5

Yoke shaped MgO barrier magnetic tunnel junction sensors

Yoke shaped MgO barrier magnetic tunnel junction sensors

... (Received 5 September 2012; accepted 10 December 2012; published online 26 December 2012) Yoke-shaped sensors based on MgO-barrier magnetic tunnel junctions have been designed, fabricated, and studied; they show a good ...

5

Using F-transform to remove image noise

Using F-transform to remove image noise

... The algorithm in table (1) is implemented as a user subroutine in the mathematical code MATLAB [8]. Fig. (1) shows the original cameraman image, figures (2), (4), and (6) show cameraman image after adding ...

9

Low frequency active noise control of an underwater large scale structure with distributed giant magnetostrictive actuators

Low frequency active noise control of an underwater large scale structure with distributed giant magnetostrictive actuators

... Active noise control techniques, however, offer an effective means to achieve low frequency noise ...active noise control is hardly used in underwater acoustics due to its harsh application ...

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Estimation of Spectral Exponent Parameter of Process in Additive White Background Noise

Estimation of Spectral Exponent Parameter of Process in Additive White Background Noise

... white noise compo- nent than at the lower ...Figure 1 where simulation results are given for flicker noise (γ = 1) and additive white noise (γ = ...Figures 1(a), 1(b), and ...

7

Removing noise from electroencephalogram signals for
BIS based depth of anaesthesia monitors

Removing noise from electroencephalogram signals for BIS based depth of anaesthesia monitors

... Noises in EEG signals could affect the accuracy of DoA monitor. The noises in EEG signal are from the muscle, eye movement and blinking, power line, and interference with other device. Those noises are overlapped each ...

12

Design An Application Of Microperforated Noise Silencer

Design An Application Of Microperforated Noise Silencer

... Low frequency of noise as shown Figure ...the frequency band from 8 until 100 Hz. Noise in this it is typical for a ships, power plants, in trains, and huge diesel engines also for ...

24

InGaP (GaInP) mesa p-i-n photodiodes for X-ray photon counting spectroscopy

InGaP (GaInP) mesa p-i-n photodiodes for X-ray photon counting spectroscopy

... electronic noise associated with the preamplifiers used (particularly due to the direct connection of the detectors to the preamplifer input transistors, compared with the use of a discrete wire-ended packaged ...

8

An experimental 2D-Var retrieval using AMSR2

An experimental 2D-Var retrieval using AMSR2

... even if NEDT were the only observation error source. Comparison of retrieved fields with the a priori fields from ERA5 is shown in Fig. 7, with ERA5 on the left and the 2D- Var on the right. Due to the uncalibrated ...

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Informative Signal Analysis: Metrology of the Underwater Geomagnetic Singularities in Low Density Ionic Solution (Sea Water)

Informative Signal Analysis: Metrology of the Underwater Geomagnetic Singularities in Low Density Ionic Solution (Sea Water)

... a noise signal (A) whit the same wavelength order as the target signal (B): A and B signals are not classifiable in the spectral ...recurring noise (more or less a square windows) makes unstable the ...

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Vocalisations of the bigeye Pempheris adspersa: characteristics, source level and active space

Vocalisations of the bigeye Pempheris adspersa: characteristics, source level and active space

... and noise at the threshold sound level where signal can be ...re. 1 μ Pa) and related sonar equation parameters were for a specified frequency band (octave bands) and were thus root mean square band ...

9

Car Roof Rack Cavity Noise

Car Roof Rack Cavity Noise

... The cavity is termed shallow if the length to depth ratio (L/D, see Fig 2.3) is significantly large (typically > 1) to allow longitudinal (stream wise) waves to exist (Fig 2.1b). Oscillations in shallow ...

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