The phrase "a simple variation of" is correct and usable in written English.
It can be used when describing a minor change or difference in something, often in comparison to an original version.
Example: "This design is a simple variation of the original concept, making it more user-friendly."
Alternatives: "a slight modification of" or "a minor adjustment of".
We show that a simple variation of a discrete Dutch auction can extract almost all surplus.
It is a simple variation of the grabbing game found in amusement arcades for decades: successfully secure a toy from a pile and you win.
Not only sub-cycle temporal gating but also transverse streaking of free electrons is possible by a simple variation of the presented set-up (Fig. 4a), providing for deflection-based applications and an improvement in temporal resolution.
The spatial finding problem is a simple variation of the problem first proposed in [17].
The results showed that the ZnO nanowires could be tailored to the desired sizes with a simple variation of the growth parameters.
It is shown that the nanowires can be tailored to the desired sizes with a simple variation of the growth parameters.
16– 20 The properties of these gels can be adjusted over a large range by simple variation of the organic-inorganic content allowing their use in applications as diverse as catalysis, 21– 23 switchable electronics, 24, 25 tissue engineering, 26, 27 drug delivery, 28– 31 wastewater treatment, 32– 34 hyperthermia cancer therapy 35, 36 and soft actuators.
In addition, UCNPs are considered to be ideal building blocks for development of multimodal probes for cells and whole body imaging, exploiting simple variation of host matrix, dopant ions, and surface chemistry.
The cultures could be maintained for prolonged periods and intact cell sheets could be harvested by simple variation of temperature.
Fine control over the size of the PLGA "warheads" (and therefore of encapsulated drug cargos) was readily achieved through simple variation of the mass of PLGA microparticles added to the mold.
