Sentences with phrase «noise measurements for»

(Typically 99.7 % of all noise measurements for a given street will fall below the average plus three sigma decibels.

The measure being used is the count of noise readings higher than 99.7 % of typical noise measurements for a given street.)

Not exact matches

The ability to control quantum noise could one day be used to improve the precision of very sensitive measurements, such as those obtained by LIGO, the Laser Interferometry Gravitational - wave Observatory, a Caltech - and - MIT - led project searching for signs of gravitational waves, ripples in the fabric of space - time.

This version of FOXSI will use new hardware to eliminate much of the background noise that the instrument sees, allowing for even more precise measurements.

Kensuke Kobayashi (Professor, Graduate School of Science, Osaka University) and Sadashige Matsuo (Assistant Professor, Graduate School of Engineering, The University of Tokyo), in cooperation with research groups led by Teruo Ono (Professor, Institute for Chemical Research, Kyoto University) and Kazuhito Tsukagoshi (Research Fellow, International Center for Materials Nanoarchitectonics, National Institute for Materials Science), produced graphene samples capable of forming p - n junctions by combining gate electrodes and performed precise measurements of current - fluctuation («shot noise») in the graphene p - n junction in the QH regime in the strong magnetic fields and at low temperatures.

«For example, the measurements showed that a SMA8 surface that was tested in Norway in the period 2012 - 2015, and which is known to provide minor levels of noise reduction, exhibits a difference in rolling resistance of 23 per cent when comparing an EV tire manufactured by Continental (standard on electric VW Golfs) with a popular brand manufactured by Michelin,» says Berge.

When I visit Lincoln Center, I find noise up to 80 dB on the street corner outside, but after I step into the empty Tully Hall and close the door behind me, my meter bottoms out at its lower limit of 50 dB for the first time; Holden tells me his firm's measurements show that the sound level in the space is actually less than 25 dB.

«We provide tools for people to work with when their measurements have noise and they're interested in correlations and quantitative relationships,» he said.

His main fields of research are quantum information and quantum optics where he has authored and co-authored papers on a broad range of topics, including work on noise reduction and microscopic lasers, quantum repeaters for long - distance quantum communication, quantum entanglement and cluster states, and measurement - based quantum computers.

Prior to normalization, quality confidence measurements (spot diameter, spot area, array footprint, spot circularity, signal to noise ratio, spot uniformity, background uniformity, and replicate uniformity) were determined for each scanned array on a spot - by - spot basis to assess quality.

Park NX - HDM, together with its industry's lowest noise floor, and its unique True Non-Contact ™ technology, it is the most accurate AFM for surface roughness measurement in the market.

Group 1: Materials, Resonators, & Resonator Circuits A. Fundamental Properties of Materials B. Micro - and Macro-Fabrication Technology for Resonators and Filters C. Theory, Design, and Performance of Resonators and Filters, including BAW, FBAR, MEMS, NEMS, SAW, and others D. Reconfigurable Frequency Control Circuits, e.g., Arrays, Channelizers Group 2: Oscillators, Synthesizers, Noise, & Circuit Techniques A. Oscillators — BAW, MEMS, and SAW B. Oscillators - Microwave to Optical C. Heterogeneously Integrated Miniature Oscillators, e.g., Single - Chip D. Synthesizers, Multi-Resonator Oscillators, and Other Circuitry E. Noise Phenomena and Aging F. Measurements and Specifications G. Timing Error in Digital Systems and Applications Group 3: Microwave Frequency Standards A. Microwave Atomic Frequency Standards B. Atomic Clocks for Space Applications C. Miniature and Chip Scale Atomic Clocks and other instrumentation D. Fundamental Physics, Fundamental Constants, & Other Applications Group 4: Sensors & Transducers A. Resonant Chemical Sensors B. Resonant Physical Sensors C. Vibratory and Atomic Gyroscopes & Magnetometers D. BAW, SAW, FBAR, and MEMS Sensors E. Transducers F. Sensor Instrumentation Group 5: Timekeeping, Time and Frequency Transfer, GNSS Applications A. TAI and Time Scales, Time and Frequency Transfer, and Algorithms B. Satellite Navigation (Galileo, GPS,...) C.Telecommunications Network Synchronization, RF Fiber Frequency Distribution D. All - optical fiber frequency transfer E. Optical free - space frequency transfer F. Frequency and Time Distribution and Calibration Services Group 6: Optical Frequency Standards and Applications A. Optical Ion and Neutral Atom Clocks B. Optical Frequency Combs and Frequency Measurements C. Ultrastable Laser Sources and Optical Frequency Distribution D. Ultrastable Optical to Microwave Conversion E. Fundamental Physics, Fundamental Constants, and Other Applications

Taking models of galaxies from the Hubble Space Telescope Ultra Deep Field (HUDF) and applying a correction for the HUDF point spread function we generate lensed simulations of deep, opti... ▽ More We present a simulation analysis of weak gravitational lensing flexion and shear measurement using shapelet decomposition, and identify differences between flexion and shear measurement noise in deep survey data.

These involved calculating weights for the velocity time series from the measurement uncertainties and adjusting them in order to minimize the noise level of the combined data.

Optical fiber modal noise in the 0.8 to 1.5 micron region and implications for near infrared precision radial velocity measurements

Such an instrument performance budget is a necessity for both identifying the variety of noise sources currently limiting Doppler measurements, and estimating the achievable performance of next generation exoplanet hunting Doppler spectrometers.

Thats true there is no measurement for noise during an MOT, my mini was FAR to loud (for me) on its last mot but passed.

The 4.7 - litre engine features BlueDIRECT direct fuel injection technology and will launch past 62mph in 4.9 s, which outputs a 435bhp twin turbo V8 to get from A to B. Black 20inch AMG double spoke Alloy wheels, AMG Sports Package, Bi-xenon headlights with LED technology, Electric Glass Sunroof, Hard Disk Drive (HDD) Navigation with 3D Map Display and TMC, Start / Stop System, Advanced Parking Guidance - Parking Space Measurement, Visual and Audible Steering Guidance, Front Seats - Heated, Linguatronic Voice Control for Navigation, Luxury Automatic Climate Control - Two Zone, with Digital Display, Speedtronic Cruise Control, Alarm System, Bluetooth Interface for Hands - Free Telephony, Drivers and Front Passenger Seats - Electrically Adjustable with Memory, Electric Windows (4), Hill Start Assist, Metallic Paint, Radio / CD / DVD Changer (6 - Disc, Region 2 DVD Only) / MP3 Compatibility / SD Card Slot / 8in Colour Display / Media Interface, Rain Sensing Wipers - Two - Stage, Tinted, Laminated, Noise - Insulating, Infrared - Reflective Glass All Round, Tyre Pressure Loss Warning.

The IPCC claims the models» global (wide) mean annual temperatures is highly correlated (0.98) with measured actual (ignoring for now the question of the validity and reliability (noise) of the measurements themselves).

Of course, on a timescale of one decade the noise in the temperature signal from internal variability and measurement uncertainty is quite large, so this might be hard to determine, though tamino showed that five year means show a monotonic increase over recent decades, and one might not unreasonably expect this to cease for a decade in a grand solar minimum scenario.

The advantage of the ocean heat content changes for detecting climate changes is that there is less noise than in the surface temperature record due to the weather that affects the atmospheric measurements, but that has much less impact below the ocean mixed layer.

You will still SEE an increase in temperatures, but because of the poor localisation the variability is much higher and the effect of small - scale (compared to global) forcings that affect only the region you have measurements for mean that to get the signal from the noise requires more time.

[Response: True, but as long as the errors themselves are iid, then you are still testing for a signal if you have many parallel series (the noise cancels in a similar way to taking the mean over many measurements).

The measurement environment is hardly static, yet we are looking for small variations in the climate in the midst of all this noise and uncertainty.

In a dramatic win for residents» groups who have raised widespread concerns about the impact of wind farms on rural communities, the committee recommended that noise measurements be expanded to include low - frequency noise, or infrasound.

Using data without a safety margin, such as mean values for a given turbine model, measurements from a single turbine, or «best guess» for future turbines gives in principle a probability of 50 per cent that the actual erected turbines will emit more noise than assumed and that noise limits will be exceeded.»

Tricks were used in the measurements of low - frequency noise and infrasound, as denounced by Professor Henrik Moeller, a renowned acoustician from the University of Aalborg [click here for English translation].

However, these differences do not significantly affect the derivation methodology and their main effect is on the level of the counting noise that only restricts the altitude range of the measurement or the integration time for a given accuracy.

Confounding influences are accounted for in measurements and while they leave some noise in the record they can not account for the observed upward trend.

Just for fun my estimates of true - variance contributions over the past one million years: galactic / sun 75 percent, geophysical / ocean 20 percent, atmospheric chemistry / volcano 4 percent, remaining 1 percent (true - variance equals total variance minus natural noise / measurement error).

And, if you have applied autocorrelation that is broader than usual are you not masking the possibility for decade scale fluctuations to be detectable in the presence of uncorrelated inter-annual measurement noise?

Indeed this should always be done, because the noise is measurement error, which also biases estimates — unless it is appropriately accounted for, as it can be when retests occur in the survey.

The review includes an up to date review of measurement techniques for assessing noise from wind turbines in accordance with international standards.

Assuming a CR - cloud connection exists, there are various factors which could potentially account for a lack of detection of this relationship over both long and short timescales studies, including: uncertainties, artefacts and measurement limitations of the datasets; high noise levels in the data relative to the (likely low) amplitude of any solar - induced changes; the inability of studies to effectively isolate solar parameters; or the inability to isolate solar - induced changes from natural climate oscillations and periodicities.

I have read with interest the paper by Santer et al indicating that the statistical work by Douglass et al is flawed because they had not allowed for natural random noise in the data set of measurements in upper tropospheric temperatures.

For a while, I have been fascinated with the topic of signal to noise ratio in climate measurement.

There are various excuses used to justify not doing internal home measurements, despite this being recommended for environmental low frequency noise in 2004 by the Qld EPA, for example (see www.wind-watch.org/documents/ecoaccess-guideline-for-the-assessment-of-low-frequency-noise/).

Over the next five the seven days, the count of noise measurements higher than three sigma decibels higher than the average background noise for the street, more than doubles.