Sentences with phrase «measurement uncertainty in»

Measurement Uncertainty in Racial and Ethnic Identification Among Adolescents of Mixed Ancestry: A Latent Variable Approach (2010)

«Climate skeptics»» web sites even claim that the measurement uncertainty in the average of 3000 Argo probes is the same as -LSB-...]

«Climate skeptics»» web sites even claim that the measurement uncertainty in the average of 3000 Argo probes is the same as that -LSB-...]

If you read the references and sources I've cited as well as the review cited by Pat Cassen, I think it will be clear that for the almost exclusively human contribution to be refuted would require more than measurement uncertainties in C12 / C13 ratios (although Pat Cassen's reference addresses the methodology quite well).

Not exact matches

The degree of auditor judgment related to areas in the financial statements that involved the application of significant judgment or estimation by management, including estimates with significant measurement uncertainty;

The uncertainties in measurement are simply too huge

They also re-discovered Uranus» long - lost magnetic poles, which were lost shortly after their discovery by Voyager 2 in 1986 due to uncertainties in measurements and the featureless planet surface.

Further complicating the picture is the possibility that the five youngish stars could be red giants after all, thanks to uncertainties in the measurements of their sizes, says astronomer Evan Kirby of Caltech.

Although the calculated mass for that pulsar, called J1614 - 2230, is lower than that of the black widow pulsar, the uncertainty in the measurement is smaller: + / - 0.04 solar masses vs 0.12 solar masses for the black widow pulsar.

Uncertainties in the measurement of mass make it hard to classify borderline objects this way.

«Which means that if you want to protect your biological specimen on a trip to Mars to a set conservative limit, you will probably be carrying six times too much shielding, just because the uncertainty is a factor of six — a 600 percent uncertainty in the measurement.»

The researchers do, however, acknowledge that there is some uncertainty in their measurement.

The measured uncertainty in location capability was 16 meters, much higher than the target of 3 meters, but this metric can be improved through future noise suppression techniques, increased sensor bandwidth, and improved digital algorithms that can accurately extract distance measurements, Howe explained.

The new measurement is 1.380 651 56 (98) × 10 − 23 J K − 1, where the (98) shows the uncertainty in the last two digits, which amounts to an uncertainty of 0.7 parts per million — almost half the previous lowest uncertainty.

However, because each of these measurements must be calibrated to account for natural variation in the environment over time, individual dates have large amounts of error and uncertainty, making them difficult to aggregate or interpret in groups.

Like earlier efforts, the scheme, designed by Paul Townsend of the British Telephone Laboratories in Ipswich, U.K., relies on Heisenberg's uncertainty principle — the German physicist's famous insistence that any measurement of a system changes its state.

The uncertainty in the latest measurement is 150 parts per million, or 0.015 % — only slightly larger than that of the conventional method of determining G, which is to quantify the mutual pull of two macroscopic masses.

A separate experiment measuring the atoms in a silicon sphere has calculated Planck's constant down to an uncertainty of 20 parts per billion, while the best watt measurement has achieved an uncertainty of just 19 parts per billion.

Second, such measurements are limited in precision by the Heisenberg uncertainty prinCiple.

Because weather station locations and measurements change over time, there is some uncertainty in the individual values in the GISTEMP index.

Already the uncertainties in measurements using the best of these clocks are smaller than those in measurements using the very best cesium standards.

Measurements by Leo Hollberg's group at NIST, as well as by other groups elsewhere, suggest that the intrinsic limit of the optical comb is still a couple of orders of magnitude better than the uncertainty in current optical frequency mMeasurements by Leo Hollberg's group at NIST, as well as by other groups elsewhere, suggest that the intrinsic limit of the optical comb is still a couple of orders of magnitude better than the uncertainty in current optical frequency measurementsmeasurements.

The simplicity of optical combs has not only increased how often scientists around the world make these extremely precise frequency measurements but also greatly decreased the uncertainty in those measurements.

This allows high - precision measurements in a short time and considerably facilitates the future reduction of the total measurement uncertainty down to a few parts in 1018.

The team's new measurement is 13 times more precise than previous efforts, with an uncertainty of just 0.03 parts per billion, the researchers report online today in Nature.

She says uncertainty in these new measurements means the orbits of these dwarf galaxies may not be as nicely aligned as they seem.

In all, Endres and Wingreen's strategy halves the uncertainty in the concentration measurements and therefore allows cells to make measurements of a given certainty more quicklIn all, Endres and Wingreen's strategy halves the uncertainty in the concentration measurements and therefore allows cells to make measurements of a given certainty more quicklin the concentration measurements and therefore allows cells to make measurements of a given certainty more quickly.

«The tide gauge measurements are essential for determining the uncertainty in the GMSL (global mean sea level) acceleration estimate,» said co-author Gary Mitchum, USF College of Marine Science.

The agreement between the two aluminum clocks is more than 10 times closer than any previous two - clock comparison, with the lowest measurement uncertainty ever achieved in such an evaluation, according to the paper.

The interval doesn't reflect an uncertainty in measurement precision but rather a real variation of atomic weight from substance to substance.

Thus, the spin component with reduced uncertainty becomes more precise in delivering its measurement - as the two are inversely correlated.

As our measurements become more and more precise in this field, we are finding that most of our uncertainty comes from our lack of understanding of the stars that the planets orbit.

Over the instrumental period, fractional uncertainty in the latter is very much larger than fractional uncertainty in temperature change measurements, and is approximately normally distributed.

Rose, D., S.S. Gunthe, E. Mikhailov, G.P. Frank, U. Dusek, M.O. Andreae and U. Pöschl, Calibration and measurement uncertainties of a continuous - flow cloud condensation nuclei counter (DMTCCNC): CCN activation of ammonium sulfate and sodium chloride aerosol particles in theory and experiment, Atmospheric Chemistry and Physics, 8, 1153 - 1179, 2008.

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.

I can certainly tell you that it would not be acceptable to report such a narrow combined uncertainty in a physics measurement (where uncertainties are much more under control) if the result of two measurements showed such discrepancies.

And as expected, in the cited test, going up from 195 / 65/15 to 235 / 35/19 changes the maximum side acceleration from 0.83 to 0.88 (and let's be honest, there are huge uncertainties in those measurements).

In metrology, measuring sticks must be traceably calibrated against standard tools of measurement, which must further be traced to primary standards based on physical constants, such as units of wavelength of light that have low measures of uncertainty.

I can determine the standard uncertainty for all the measured variables from statistics It is falsifiable — i can move a body at a certain velocity for a certain time and measure the traveled distance If the traveled distance does not fit with calculated distance within the uncertainty calculated by using the international standard Guide to the expression of Uncertainty in Measurement the model mighuncertainty for all the measured variables from statistics It is falsifiable — i can move a body at a certain velocity for a certain time and measure the traveled distance If the traveled distance does not fit with calculated distance within the uncertainty calculated by using the international standard Guide to the expression of Uncertainty in Measurement the model mighuncertainty calculated by using the international standard Guide to the expression of Uncertainty in Measurement the model mighUncertainty in Measurement the model might be wrong.

And since we don't have good ocean heat content data, nor any satellite observations, or any measurements of stratospheric temperatures to help distinguish potential errors in the forcing from internal variability, it is inevitable that there will be more uncertainty in the attribution for that period than for more recently.

They also completely miss out any of the interesting uncertainty discussed here about the measurements and multi-decadal oscillations in the Ocean.

- > [# 3] Comparing two measurements with a possible uncertainty of + / - 6Sv each should result in a total uncertainty of + / -12 Sv (ossibly more considering less sophisticated equipment in 1957).

I mean, one could easily write a 20 page paper on the uncertainties in ocean heat and momentum measurements — it is a huge issue.

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.

There are uncertainties in parts of the general circulation models used to forecast future climate, but thousands of scientists have made meticulous efforts to make sure that the processes are based on observations of basic physics, laboratory measurements, and sound theoretical calculations.

The surface waters have only warmed about 0.2 C, so while your statement about wider regions and lasting longer could be true, it is lost in measurement uncertainty.

These measurements become sparser as we go further back in time, hence trend estimates become more uncertain; of course we fully accounted for this uncertainty in our analysis.

Sensor measurement uncertainty has never been fully considered in prior appraisals of global average surface air temperature.

we use global - scale atmospheric CO2 measurements, CO2 emission inventories and their full range of uncertainties to calculate changes in global CO2 sources and sinks during the past 50 years.

This work is partly needed because of people like you, who will never acknowledge the truth of measurement and data, or that uncertainty is a given in life and we still put one foot in front of another.