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noise measurements

Fast and accurate shot noise measurements on atomic-size junctions in the MHz regime

Fast and accurate shot noise measurements on atomic-size junctions in the MHz regime

... current noise and voltage noise, cross talk of the amplifiers, uncertainty in the resistance R 1 and its noise temperature, and uncertainties in the junction ...the noise signal due to the ...

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Considering uncertainty when performing environmental noise measurements

Considering uncertainty when performing environmental noise measurements

... environmental noise measurements meteorological data are obtained from sources such as (1) on-site upper air data from radiosonde profiles; (2) meteorological mesoscale model data, forecast hourly, specific ...

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Current Mode Neutron Noise Measurements in the Zero Power Reactor CROCUS

Current Mode Neutron Noise Measurements in the Zero Power Reactor CROCUS

... 2). Measurements at higher power or with more sensitive detectors could not be performed with the developed measurement station based on pulse spectrometry electronics due to pile-up in the detector and dead time ...

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Microphone handling noise : measurements of perceptual threshold and effects on audio quality

Microphone handling noise : measurements of perceptual threshold and effects on audio quality

... Three exemplar devices were chosen to create the samples for the perceptual tests: a popular dynamic microphone (Shure SM58), a mobile phone (iPhone 4) and a lapel microphone (Audio Technica AT803b). Handling noises can ...

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Microphone handling noise : measurements of perceptual threshold and effects on audio quality

Microphone handling noise : measurements of perceptual threshold and effects on audio quality

... Three exemplar devices were chosen to create the samples for the perceptual tests: a popular dynamic microphone (Shure SM58), a mobile phone (iPhone 4) and a lapel microphone (Audio Technica AT803b). Handling noises can ...

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Dispersive detection of radio frequency dressed states

Dispersive detection of radio frequency dressed states

... low-noise measurements of atom numbers due to modulation of the atomic response at ...fringence measurements of driven Rabi-cycles between atomic clock states show technical noise on the ...

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Anomalous non-linear shot noise at high voltage bias

Anomalous non-linear shot noise at high voltage bias

... shot noise, i.e., a decrease of shot noise with bias. Here the noise is measured up to 800 mV which is much higher than any previous shot-noise measurement done 14,15 over metallic point ...

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Vol 60, No 4 (2017)

Vol 60, No 4 (2017)

... Noise measurements were performed with a sound-level meter in real-time, instantaneous measurements, and to see the evolution of noise over time, from the beginning of the end of its injection ...

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Assessment of Indoor and Outdoor Noise Pollution at a University Hospital Based on Acoustic Measurements and Noise Mapping

Assessment of Indoor and Outdoor Noise Pollution at a University Hospital Based on Acoustic Measurements and Noise Mapping

... These measurements were distributed at 10 meter intervals, making a total of 30 measured points, as shown in Figure ...these measurements, vehicle counts were made (light vehicles, motor- cycles, heavy ...

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Image Quality and Radiation Dose of Dual Energy CT of the Head and Neck Compared with a Standard 120 kVp Acquisition

Image Quality and Radiation Dose of Dual Energy CT of the Head and Neck Compared with a Standard 120 kVp Acquisition

... Objective noise was similar with DE and SECT protocols at the 5 anatomic ...pected, noise was highest at the aortic arch and thyroid levels and lowest at the arytenoid level with both ...tive noise ...

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Environmental noise mapping using measurements in transit

Environmental noise mapping using measurements in transit

... of noise attenuation over propagation from the ...taking noise measurements in transit which could then form the basis of the source model in the development of a strategic noise ...

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NORMATIVE MEASUREMENTS OF NOISE AT CNC MACHINES WORK STATIONS

NORMATIVE MEASUREMENTS OF NOISE AT CNC MACHINES WORK STATIONS

... of noise at a workstation is among fundamental tasks for maintaining safety at work, both in terms of health (the auditory system in particular) as well as work ...monitor noise levels by carrying out ...

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Human response to vibration in residential environments (NANR209), technical report 4: calculation of noise exposure

Human response to vibration in residential environments (NANR209), technical report 4: calculation of noise exposure

... All measurements of noise from railway traffic were conducted according to the procedure described in Appendix ...all noise measurements were carried for as long as vibration ...

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Low frequency flicker noise in a MSM device made with single Si nanowire (diameter ≈ 50 nm)

Low frequency flicker noise in a MSM device made with single Si nanowire (diameter ≈ 50 nm)

... flicker noise in a metal-semiconductor-metal (MSM) device made from a single strand of a Si ...flicker noise can come from the junction region where the metals make contacts with the semiconductor (MS ...

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Characterizing a Resonator Bolometer Array

Characterizing a Resonator Bolometer Array

... accurate measurements of both the response and the noise are necessary to estimate the ...electronic noise; for this reason, we focus on the response and noise measurements in the ...

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Synthetic Stimuli for the Steady-State Verification of Modulation-Based Noise Reduction Systems

Synthetic Stimuli for the Steady-State Verification of Modulation-Based Noise Reduction Systems

... For each measurement, the test stimulus was presented during 15 seconds in order to allow the system under test to reach steady state. Bin-by-bin division of FFT absolute values from the second measurement by ...

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An investigation of the imaging performance of new digital x-ray detectors

An investigation of the imaging performance of new digital x-ray detectors

... 1991). Measurements done by Francis et al (1992) indicate that in a 100 pm Epi device with only 10 pm depletion depth the charge can spread as much as 17 pixels for a 60 keV ...

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Sideband Noise Mitigation in a Co-Located Network Involving CDMA2000 and WCDMA System

Sideband Noise Mitigation in a Co-Located Network Involving CDMA2000 and WCDMA System

... interfering noise power on the receiver sensitivity, noise floor level and the carrier to interference ratio were clearly ...the measurements conducted, the interfering power was evaluated as ...

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An investigation into inconsistencies between theoretical predictions and microphone array measurements of railway rolling noise

An investigation into inconsistencies between theoretical predictions and microphone array measurements of railway rolling noise

... In [41], a planar array is used with omni-directional microphones arranged in a square pattern. The output signal of this planar array was the simple average of the microphone signals (no weighting). As no time delay was ...

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Evaluation of noise pollution in Parks of Sanandaj City and zoning with Geographic Information System

Evaluation of noise pollution in Parks of Sanandaj City and zoning with Geographic Information System

... evaluate noise pollution in the parks, “A” frequency weighting network and the “Fast” response mode were selected as a measure of the noise ...that noise pollution has continuous/non-continuous ...

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