Sentences with phrase «measurement uncertainty of»

What is the measurement uncertainty of the temperature data that underlies the heat content calculation?

So, now instead of carbon listed as being 12.0107 atomic mass units with a measurement uncertainty of about 0.0008, it has an official atomic weight of [12.0096; 12.0116], where the brackets and semicolon indicate an interval of atomic weights.

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.

Not exact matches

«Given the uncertainty surrounding the measurement of economic slack, the true amount may be larger than estimated, which could slow down the emergence of price pressures,» Draghi told a regular committee hearing.

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;

Margin of error is a measurement of uncertainty that results from sampling.

The precision of previous measurements based on hydrogen atoms was limited by uncertainties related to the internal structure of the proton inside its nucleus.

Apart from the uncertainty of relying largely on self - reported measurements, she points out, the authors double - dip their data by testing height and weight separately and then again as body mass index, or BMI, which combines height and weight.

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.

Such measurements have a lot of uncertainty, however, as they depend on the inclination of the planet's orbit, which isn't well known.

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.

The adjacent numbers are the dates with the uncertainties of the measurements.

«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 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.

This adds uncertainty to temperature measurements on top of the normal practical difficulties.»

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.

As a result, they were able to obtain an angle - amplitude measurement of unprecedented precision, unbothered by quantum uncertainty.

«The physical reason behind this uncertainty is that measurement, by its very nature, requires using some sort of energy — for example, shining a light on the object to be measured.

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 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 total measurement uncertainty lies at only 4 × 10 - 19, allowing a height difference of 4 mm between clocks to be resolved within 100 seconds of measurement time only.»

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

Among the results he has achieved are demonstrations of the quantum teleportation between material objects, a quantum memory for light, an optical detection of radio waves using a nanomechanical oscillator, a quantum optical interface with a one dimensional atomic crystal, and measurement of motion not restricted by the Heisenberg uncertainty.

«If you really believe our number — and we have shed blood, sweat and tears to get our measurement right and to accurately understand the uncertainties — then it leads to the conclusion that there is a problem with predictions based on measurements of the cosmic microwave background radiation, the leftover glow from the Big Bang,» said Alex Filippenko, a UC Berkeley professor of astronomy and co-author of a paper announcing the discovery.

But the new direct measurements yield a rate of 73.24 (± 1.74) km / sec / Mpc, an uncertainty of only 2.4 percent, and clearly incompatible with the Planck predictions, Filippenko said.

The telescope data give us the redshift due to the Hubble expansion that when coupled with the direct distance measurement from the gravitational wave data gives us a Hubble Constant value of 70 km / sec / Mpc (with an uncertainty of +12 and -8 km / sec / Mpc).

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.

The constraining parameters are shown as pairs of lines, where separations of the lines indicates the measurement uncertainties.

Spectroscopy of the star coupled with asteroseismic modeling of the multiple pulsation modes yield precise measurements of stellar properties, notably Teff = 5793 + / - 74 K, M = 1.079 + / - 0.051 Msun, R = 1.243 + / - 0.019 Rsun, and density 0.7903 + / - 0.0054 (cgs), all measured with fractional uncertainties of only a few percent.

The uncertainty of 120 km on our measurement of the planet's size currently renders it one of the most precisely measured planetary radii outside of the Solar System.

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.

The new measurement reduces the rate of expansion to an uncertainty of only 2.4 percent.

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.

Judith Curry wrote: «He voices concerns about the following threats to scientific integrity (see especially the last page): appealing to emotions; making personal (ad hominem) attacks; deliberately mischaracterizing an inconvenient argument; inappropriate generalization; misuse of facts and uncertainties; false appeal to authority; hidden value judgments; selectively leaving out inconvenient measurement results.»

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).