Sentences with phrase «level of amplitude»

A higher than usual level of amplitude modulation has been reported to occur for brief periods at a small number of wind farm sites in other countries.

Not exact matches

It is the central premise behind inflation targeting, and central bankers — essentially without exception — assert that they have the capacity to affect or even determine inflation in the long term, but that they do not have the capacity to affect the average level of output, much less its growth rate over time, even though they may have the capacity to affect the amplitude of cyclical fluctuations.

By skillfully managing demand, policymakers could aspire to reduce the amplitude of the fluctuations — and although they could determine the average rate of inflation, they could not raise the average level of output.

The reasons behind cycles, as well as their timing, duration, speed, level of violence and amplitude, differ.

«Additionally, our results presented evidence that electrocortical amplitude modulations (relative to average gait cycle) are correlated with the level of difficulty in locomotion tasks.

Users can control the amplitude of the vibrations and check battery levels with a mobile app.

The new study examined variation in the amplitude of fluctuations in what is called the blood - oxygen level dependent (BOLD) signal, which tracks activity levels in the brain.

Once the atoms — a matter copy of the extinguished light pulse — arrived, the coupling laser was turned back on; the atoms, eager to join the second condensate, shifted energy levels, releasing photons with the exact phase and amplitude of those that had entered the first condensate.

When the coupling laser came back on, the incoming jolt of energy caused the altered sodium atoms to shift energy levels, in the process releasing a light pulse of the exact phase and amplitude as the one originally sent in by the probe laser.

In their analysis they also in effect compare the amplitudes of two series which have been band - pass filtered in a similar way, and do not provide convincing evidence that they really are related — there are wiggles of similar frequencies, as expected when they have been band - pass filetered, but they do not exhibit a convincing one - to - one correspondence (in neither phase or amplitude), and the authors do not discuss the level of statistical significance.

Studies exploring these factors have shown that the reduced level of EMG amplitude is probably a function of both fewer motor units recruited to produce the same force, and lower rate coding (Pasquet et al. 2006).

While the load was low and therefore only led to small - to - moderate levels of hamstrings EMG amplitude, the researchers did find that there was a time difference in the hamstrings EMG amplitude in that in the straight - leg lift the peak EMG amplitude occurred early in the lift but in the bent - leg lift the peak occurred later on.

Studies investigating multi joint exercises (such as the bench press) and single joint exercises (such as the dumbbell fly, pec deck machine, and bent - forward cable cross-over) have generally found similar levels of pectoralis major EMG amplitude across all exercises, which suggests that either type of exercise can be used to good effect (Welsch et al. 2005; Rocha - Junior 2007; Shanke 2012).

Overall, research indicates that the free - weight and machine bench press produce very similar levels of pectoralis major EMG amplitude and therefore either will train the muscle effectively.

Indeed, in many cases it is likely that performing the push up without additional external load (such as elastic resistance) is unlikely to produce sufficient levels of pectoralis major EMG amplitude such that the exercise will help develop muscular strength and size.

In practice, large levels of pectoralis major EMG amplitude can be achieved by a number of traditional multi-joint shoulder horizontal adduction and elbow extension exercises.

They found that the Razor curl produced similar levels of hamstring EMG amplitude to the leg curl.

This means that the position used during the MVIC must be the one that involves the highest level of EMG amplitude.

Inter-individual variability is a major problem in many areas of sports science, as it leads to great difficulty in identifying group effects, as might be desirable when comparing the EMG amplitude of a muscle during two exercises to find out which leads to the highest level of muscle activation.

Moreover, Jakobsen et al. (2013) reported that during lunges with both free weights and elastic resistance, EMG amplitude of most of the leg muscles is greatest at the point of peak hip and knee flexion, where ground reaction forces are exerted in order to start the lifting phase but that in the elastic resistance condition, there was a trend towards a more even level of EMG amplitude across joint angles.

They observed that lower levels of gluteus maximus EMG amplitude that predicted reduced knee valgus.

Emami et al. (2014) found significantly greater gluteus maximus and medial hamstring EMG amplitude levels in athletes with a history of hamstring strain injury compared to those without any history of hamstring strain injury.

All 2017 Accord Hybrid models feature further improved Amplitude Reactive Dampers that deliver a superior level of ride comfort together with crisp, precise handling.

Based on volcanology data, the volcano's eruption was quite huge, with an amplitude level of 52 dB and a volcanic ash altitude of more than 2,000 meters above the crater,» said NTB Disaster Mitigation Agency (BPBD) head Muhammad Rum on Tuesday.

He went on to demo how Harmonix» rhythm action title Amplitude lets the players immerse themselves into the fabric of the music, and «experience music on a deeper level, not just as listeners but as active participants.»

Constraints on the amplitude of Mid-Pliocene (3.6 - 2.4 Ma) eustatic sea - level fluctuations from the New Zealand shallow - marine sediment record.

In their analysis they also in effect compare the amplitudes of two series which have been band - pass filtered in a similar way, and do not provide convincing evidence that they really are related — there are wiggles of similar frequencies, as expected when they have been band - pass filetered, but they do not exhibit a convincing one - to - one correspondence (in neither phase or amplitude), and the authors do not discuss the level of statistical significance.

Based upon this synoptic linkage, an empirical relationship between the precipitation diurnal amplitude and low - level circulation fields of the CFSv2 is derived.

Regarding your example of water in a tub, you in fact assume that amplitude of waves is much smaller than the overall water level, so you have a small parameter here, and some sort of perturbation method might be used to derive a reasonable model for the averaged level in the tub.

Altimeters measuring sea level are orbiting in LEO, at about 1340 km altitude (cf. Jason 1 / 2 / 3), while measuring the level of a sea surface that is constantly fluctuating (waves, swell, tides, gravity...) at all scales of time and space, with amplitudes that may reach 20 or even 30 meters.

The «noise level,» that is, the amplitude of internal variability, approximated here by the standard deviation (σ) of the OHC time series after the linear trend is removed, amounts to 0.77 × 1022 J from 2004 to 2015 (Table 1).

We show that the influx of water into the volume created by this subsidence produces a sea - level fall at locations distant from these margins — indeed over the major ocean basins — that is comparable in amplitude to the syphoning mechanism isolated by Mitrovica and Peltier (1991).»

The difference of more than two orders of magnitudes between sea level change on a human time scale and sea level change on a geological time scale is the result of several mechanisms affect sea level at different amplitudes and over different time periods.

Amplitude modulation (which is a variation in the emitted noise level) is a fundamental characteristic of wind turbine noise and is a characteristic which is taken into account in the objective criteria specifically developed for wind farms.

Although all aquatic systems experience natural fluctuations in water level, the amplitude and / or frequency of these fluctuations is likely more pronounced in reservoir ecosystems (Zohary and Ostrovsky 2011).

Large amplitude fluctuations in the frequency and intensity of tropical cyclones greatly complicate both the detection of long - term trends and their attribution to rising levels of atmospheric greenhouse gases.

«The reconstructed amplitude of change over past centuries is greater than hitherto reported, with somewhat greater Mediaeval warmth in the Northern Hemisphere, albeit still not reaching recent levels,» write the researchers in their paper in PNAS.

It might be possible to investigate what the worst - case underlying cycles would do to temperature, and say that providing this regime holds true, with the amplitude and period of the cycles constrained to the 95 % confidence interval of our current observations, we can envisage a scenario where temperature reaches a certain level.

By now it should be obvious that solar cycles are pseudocycles or periodicities that display a relatively high level of period and amplitude variability.

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.

There is an underlying logarithmic warming trend due to increasing levels of CO2 combined with a natural 60 year oscillation of amplitude 0.14 C

Two effects are identified that each contribute to a slower eastward progression of Rossby waves in the upper - level flow: 1) weakened zonal winds, and 2) increased wave amplitude.

The rates of thermosteric sea level changes are closely correlated with those of reconstructed sea level changes with correlation coefficients larger than 0.8, but the former has smaller amplitudes than the latter, indicating contributions to total sea level change from processes other than upper ocean temperature changes examined here.

That temperature and CO2 levels are in close connection can be seen in the seasonal variations: For the NH, we see an average amplitude of about 20 ppmv.

It's the amplitude of the waveform at each sample point (8 - bit has 256 levels for each sample; 16 - bit has up to 65,536 levels).