The phrase "a varying background" is correct and usable in written English.
It can be used to describe a situation, context, or individual that has diverse or changing experiences, influences, or environments.
Example: "Her artistic style is influenced by a varying background that includes different cultures and artistic movements."
Alternatives: "a diverse background" or "a fluctuating background".
A metal oxide semiconductor gas sensor in temperature cycled operation is used to detect formaldehyde, benzene and naphthalene in ppb and sub-ppb concentrations with a varying background of ethanol with concentrations of up to 2 ppm.
Fig. 3 MJO propagation in a varying background SST (°C) simulated in the trio-interaction model with B-M scheme.
Work by Law et al. have shown that both Cerenkov and fluorescent light generated in an optical fibre contribute a varying background signal that depends on the length of fibre exposed to radiation.
The program rho fits a recombination hotspot process on top of a varying background recombination rate while the recombination hotspot process is not implemented in inter [30].
The same effects were found in the brief pretest session with a varying background contrast (hit rates: F1,15 = 11.91, P = 0.004; mean RT: F1,15 = 9.96, P = 0.007).
Because of variations in the PM2.5 mixture, the risk associated with a particular component is assessed against a continually varying background of other pollutants.
As the slow and fast modes get multiplied, they together can account for the major visibility peaks on a slowly varying background, which in turn determines an athlete's overall fame.
The bulk bands contribute to a gradually varying background in this spectrum.
We propose the use of ℓ1 regularization in a wavelet basis for the solution of linearized seismic tomography problems Am = d, allowing for the possibility of sharp discontinuities superimposed on a smoothly varying background.
In the case of a rapidly varying background rate function, as demonstrated in the following section, this adaptive procedure provides estimates of background rate that are much better than those obtained using a global smoothness parameter.
The stripe with negative pixel values along x direction at position z = 7.5 mm also results from a time varying background that could not be removed by the subtraction method.
