The phrase "abnormal fluctuation" is correct and usable in written English.
It can be used in contexts where you are discussing irregular or unexpected changes in data, statistics, or conditions.
Example: "The report indicated an abnormal fluctuation in the stock prices over the last quarter, raising concerns among investors."
Alternatives: "irregular variation" or "unusual change".
"We have ways of detecting abnormal fluctuations between players and so on, and if this would happen, we would know about it," Mr. Welter said.
Some abnormal fluctuations appear in the IRM acquisition curves (Fig. 3a), which may be a result from the instrument itself.
Studies of spontaneous EEG and visual or somatosensory evoked high frequency oscillations indicate that the abnormal fluctuations of cortical responsivity over time in relation to the migraine attack could be due to abnormal thalamic control.
Abnormal fluctuations, such as spikes and rectangular steps in raw time series data, were detected by eye through comparing different field components, and spikes were then linearly interpolated and steps were shifted to reduce discontinuity.
One might therefore argue that the abnormal fluctuations of plasma Ca2+ concentration are not the cause but simply a consequence of severe sepsis not directly related to CIPNM.
We found that septic shock and abnormal fluctuations of plasma Ca2+ concentration represent significant risk factors for the development of CIPNM in critically ill patients.
Both the pressure and chemical composition of inner ear fluid must be carefully maintained, and certain disorders such as Ménière's disease are thought to stem from abnormal pressure fluctuations.
When chlorine lines from a new caustic soda plant were added to chlorine lines from an older plant that used the same chlorine compression and liquefaction systems, we encountered abnormal pressure fluctuations on the chlorine side of the new plant.
We also scanned our sequencing data for copy-number variations (CNV) by looking for abnormal coverage fluctuations.
Although the method of Wang et al. uses Pixel-Value Differencing (PVD) and their modulus function provides high capacity and good image quality, the embedding process causes a number of artifacts, such as abnormal increases and fluctuations in the PVD histogram, which may reveal the existence of the hidden message.
