Sentences with phrase «from measurement noise»

«Any experiment suffers from measurement noise which degrades results.

Not exact matches

Some Town Board members found the early language confusing, arguing that the way it was phrased, if someone on Nassau Point in Cutchogue complained about noise coming from Greenport the measurement would be taken on the beach in Cutchogue.

Now, the «smart» bandage developed by the team provides direct, noninvasive measurement of tissue oxygenation by combining three simple, compact and inexpensive components: a bright sensor molecule with a long phosphorescence lifetime and appropriate dynamic range; a bandage material compatible with the sensor molecule that conforms to the skin's surface to form an airtight seal; and an imaging device capable of capturing the oxygen - dependent signals from the bandage with high signal - to - noise ratio.

Any number of background noises can scuttle the delicate measurement — LIGO can also hear ocean waves pounding distant coastlines, airplanes flying overhead and even the seismic hum from washing machines.

This noise results from the state measurement itself, since after excitation, each atom is first in a superposition of the two eigenstates and is randomly projected into one of the two states only when the measurement is performed.

Now a team of physicists including Aranya Bhattacherjee from Jawaharlal Nehru University, New Delhi, India and colleagues are investigating ways of improving the analysis of quantum noise measurement in the case of spectroscopic investigations; their preliminary findings were released in a study in EPJ D.

«I was coming from physics, where people devise clever ways to reduce noise and even more clever ways to utilize noise to make measurements.

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.

If the noise measurement survey shows that the ambient external noise levels on the site are below 45 dB and prediction work shows that they will remain below 45 dB in the future, no special measures are likely to be necessary to protect the buildings or playing fields from external noise.

Classroom noise, illness, confusing instructions by an inexperienced teacher, too much help from the teacher - coach - these and many other elements can confound the measurement.

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.

Note that this sampling noise in the tide gauge data most likely comes from the water sloshing around in the ocean under the influence of winds etc., which looks like sea - level change if you only have a very limited number of measurement points, although this process can not actually change the true global - mean sea level.

My understanding of most of the (lets call it) skeptical positions from people like Roy Spencer is that they essentially claim exactly that: the absence of a large signal compared to noise (or natural variability) and the entire debate is essentially about the question, whether noise is a measurement / statistical problem or the very nature of climate itself?

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.

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.

I don't think those measurements were capable of resolving the background CO2 from the noise of the in situ where it was done.

If there is any Climate Sensitivity to CO2, to date we have been unable to eek out the signal to CO2 induced warming from the noise of natural variation notwithstanding the use of our best and most sophisticated measuring devices and the inherent shortcomings of our measurement systems and error bounds.

This noise is either systemic (caused by measurement errors, etc) or aleatory which is contributions from everything else we don't yet fully comprehend, or can't because of the shear number of other paths.

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.»

What is surprising, and will remain so, is how a series of dubious measurements, either synthesized from out of the noise or barely above the noise, and in no way historically unsurprising, has made the world stand on its head and contemplate the idiocy demanded by Gore & co..

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 sites do not provide even or comprehensive coverage of the Earth's surface, nor are the sites immune to contamination from land - use changes — all of which add noise and uncertainty to the world temperature measurements.

Another factor is that there aren't huge numbers of observations in that region at that time so I would expect a certain amount of noise from measurement errors.

The dichotomy «signal» versus «noise» has been borrowed from electronics, where indeed is meaningful, but lacks meaning in geophysics (unless noise is used to describe errors, either in measurements or in models).

In several records, staff noted that wind turbine noise exceeded regulations: ««Staff have attended at the complainants homes on multiple occasions... noise measurements were obtained... subjective observations were made by Provincial Officers... the conclusion of the POs were that the noise emissions from the wind turbines were causing an adverse effect contrary to S. 14 (1) of the EPA at the complainants locations...»

Later, when the signal is extracted from the random noise, from the measurement error and the deliberate measurement errors, and all of that extracted from the millennium temperature changes, can the «chicken and egg» relationship be considered.

Background noise from natural variability makes measurements less than 12 years unreliable, even with greater accuracy.

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.

If we detrend HadCRUT, analogous to removing the DC leaving only the power supply ripple, and subtract this (ENSO, PDO, AMO, SSN, Pinatubo, etc) «hum» from the signal + noise of UAH temperature measurements, we can also improve our Signal to Noise Rnoise of UAH temperature measurements, we can also improve our Signal to Noise RNoise Ratio.

«Whilst the aerodynamic noise from a rotating turbine blade produces energy in the infrasound range, measurements of infrasound noise emissions from modern upwind turbines indicates that at distances of 200 metres, infrasound is in the order of 25 dB below the recognised perception threshold of 85 dB (G) and other similar recognised perception thresholds (Hayes Mckenzie Partnership Ltd, 2006).

Each of those low temperature data points are the clearest signals (least amount of local noise) of any physical measurement that is possible on earth, or from a satellite in space.