Sentences with phrase «used measurement instruments»

Secondly, it was important the evaluator used measurement instruments that schools respected and understood.

He used a measurement instrument with two tubes: one with air and one with CO2, and measured the differerence in absorption.

Not exact matches

The WMO said that direct measurements from the past 800,000 years had been taken using both Antarctic ice cores and «modern instruments.»

His technology is described as «different from most social research measurement instruments» in that it is not solely based on self - reported data — with the follow - on claim being made that: «Using observed data from Facebook users» profiles makes GS» measurements genuinely behavioral.»

Using average daily yields for these instruments by calendar month (a smoothed measurement) and contemporaneous monthly closes of the S&P 500 Index for April 1953 through March 2016 (756 months), we find that: Keep Reading

The BICEP2 instrument can not distinguish the cosmic contribution from other sources directly, so, measurements of galactic dust collected by other sources, such as the Planck satellites were used.

We'll use our onboard instruments to provide the critical field context that future scientists would need to understand the measurements made back on Earth.»

New research shows this using measurements from the Swedish particle instrument ASPERA - 3 on the Mars Express spacecraft.

NASA began taking passive - microwave measurements of sea ice in 1972, using an instrument aboard its Nimbus - 5 satellite.

«The various groups took a lot of different measurements using state - of - the - art instruments we each had developed.»

«Different alternatives need to be evaluated side by side under the same conditions using objective measurement instruments.

Climate researchers of Karlsruhe Institute of Technology (KIT) gather the data required by in - situ measurements as well as by using remote sounding instruments, e.g. on board of satellites.

From the leading scientists at Bologna, Cassini learned the importance of using high - quality instruments to make the most precise measurements possible.

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.

In addition to the observations with the SINFONI instrument the team has also made a long series of measurements of the polarisation of the light coming from the supermassive black hole region using the NACO instrument on the VLT.

Using all the measurements from Cassini's dust - counting instrument since the spacecraft arrived at Saturn in 2004, Kempf and colleagues showed that the still - bright rings collect too much dust pollution to have maintained their youthful shine for billions of years.

The extremely small size of the spectrometer, 30 x 1.5 x 1.5 millimeters, means that measurements can be taken using an instrument the size of a matchbox.

Further measurements of the Crab Nebula were made using Herschel's SPIRE instrument.

They used a satellite instrument — the European Space Agency's SCIAMACHY — to get regional methane measurements over the entire United States.

Researchers are currently making these measurements using the Limb Profiler instrument, part of Ozone Mapping Profiler Suite (OMPS) instrument, currently flying on the joint NASA / National Oceanic and Atmospheric Administration (NOAA)-RRB- / Department of Defense Suomi National Polar - orbiting Partnership (Suomi NPP) satellite, launched in October 2011.

The measurement was made using Cassini's Ion and Neutral Mass Spectrometer (INMS) instrument, which sniffs gases to determine their composition.

Researchers used a combination of specialised instruments including those deployed from the ship as well as instruments moored to the seafloor and measurements made by Boaty.

For example, several studies use innovative aerial measurements taken by specially instrumented aircraft equipped with methane sensors.

By 1752, French astronomer Nicolas Louis de Lacaille made astrometric positional measurements using state - of - the - art instruments of that time.

We demonstrate use of a matched filter algorithm for the processing of elongated laser guide star (LGS) Shack - Hartmann images, using the CANARY adaptive optics instrument on the 4.2 m William Herschel Telescope and the European Souther... ▽ More The performance of adaptive optics systems is partially dependant on the algorithms used within the real - time control system to compute wavefront slope measurements.

Our barycentric radial velocities, derived from observations taken at the KPNO 2.1 meter telescope, differ from... ▽ More We demonstrate the ability to measure precise stellar barycentric radial velocities with the dispersed fixed - delay interferometer technique using the Exoplanet Tracker (ET), an instrument primarily designed for precision differential Doppler velocity measurements using this technique.

But ICARUS is ARM's first foray into routine UAS and TBS operations, using ARM instruments and measurement platforms as well as ARM measurement processing conventions.

Looking beyond the current commercial state of the art, the CNST's NanoLab offers opportunities for researchers to collaborate on creating and using the next generation of nanoscale measurement instruments and methods.

The SOHO space observatory has been orbiting the sun for more than 20 years, using its GOLF instrument to conduct solar oscillation measurements once every 10 seconds.

Original measure development, which occurred at the University of Michigan during the period 2002 - 2010, had several goals: to identify the knowledge useful to teachers» work with students and to explore the possibility that this knowledge is unique to teaching; to provide a set of measurement instruments that could be used in research on teachers» knowledge; and to provide evaluators with an easy - to - use online administration and scoring system.

Which is measured by anomalies from previous measurements using the same instruments, or (as in ship intakes and buoys) as anomalies from cross-calibrated instruments.

That's what the instruments are used for — the accuracy is an outcome of the large number of measurements taken, and of quality control checks on the data.

Then, instead of throwing out the data as hopelessly compromised and starting the experiment over with these factors corrected, you (a) do a study estimating how miscalibrated, how defective and how improperly located your instruments were and apply adjustments to all past data to «correct» the improper reading, (b) you do a study to estimate the effect of the external factors at the time you discover the problem and apply adjustments to all past data to «correct» the effects of the external factors even though you have no idea what the effect of the external factor actually was for a given instrument at the time the data was recorded, because you only measured the effect years later and then at only some locations, (c) you «fill in» any missing data using data from other instruments and / or from other measurements by the same instrument, (d) you do another study to determine how best to deal with measurements from different instruments over different time periods and at different locations and apply adjustments to all past data to «correct» for differences between readings from different instruments over different time periods at different locations.

In addition, the Swiss meteorological agency replaced the instruments used for weather measurements in the late 1970s to automated instruments, so that manual observations were no longer needed — see Begert et al., 2005 (Open access).

Estimates of 17th century climate based on say direct CET measurements can only use (a) temperatures measured in Central England (b) made with 17th century instruments (c) that can not be repeated, and (d) can not be verified independently beyond what if anything was done about verification in the 17th century..

Measurement accuracy is not simply the calibration accuracy of the instrument used.

Researchers at the University of Alaska Fairbanks have been taking airborne measurements of glacier surface height using a laser altimeter, an instrument that bounces a laser off of the ice surface and measures how long it takes to return.

He decided to use the direct measurements of temperature change from thermometers and instruments rather than indirect data from the tree rings, to cover the period from 1960.

These methane measurements come from Hiaper Pole - to - Pole Observations, which uses aircraft loaded with scientific instruments flying long distances at varying altitudes.

However, the precise design of their instruments differed, as did the mathematical analyses used to calculate salinity from microwave measurements.

This method uses consistency between direct normal and diffuse horizontal measurements together with a special regression technique for retrieval of daily time series of column mean aerosol particle size, aerosol optical depth, NO2, ozone and water vapor column amounts together with the instrument's calibration constants.

«You will hear some skeptics say that the satellite - based temperature records don't support these findings, but we also used ground - based instruments like thermometers and rain gauges to validate these measurements,» said Shepherd.

Failure to use ARGO data to «correct» lesser instruments including ship engine intake temperature and bucket measurements makes Karl 2015 into an obvious attempt to deceive the public in my view.

[1] Measurements from several different satellite instruments are used to estimate effects of energetic particle precipitation (EPP) on NOx (NO + NO2) in the Southern Hemisphere stratosphere from 1992 to 2005.

Prior to 1979 when satellites began to measure lower troposphere temperature all over the globe we had no measure of global average temperature (GAT) only guesstimates based on fewer and fewer measurements using instruments not designed to measure decadal trends so small as a few milliKelvins per decade.

NRF is influenced by seasonal variations related to the tilt of the Earth's axis and degree of cloud cover as well as Earth's surface features... (View More) Using measurements taken by the CERES instrument, students will observe and analyze NRF patterns.

Using measurements taken by the CERES instrument, students will observe and analyze NRF patterns.

Both of the Nature Climate Change studies used a combination of direct measurements of temperature at various depths, a measurement of the altitude of the top of the ocean (sea level) from highly accurate satellite instruments, and measures of the mass of the water in the ocean, from the GRAIL gravity research project.

Acting as a research site in the sky, the ARM Aerial Facility uses aircraft outfitted with cutting - edge instruments to obtain data for validating, testing, and complementing ground - based measurements.

You will hear some skeptics say that the satellite - based temperature records don't support these findings, but we also used ground - based instruments like thermometers and rain gauges to validate these measurements.»