The phrase "a reflection is observed" is correct and usable in written English.
It can be used in contexts where you are discussing the act of noticing or perceiving a reflection, such as in scientific observations or artistic descriptions.
Example: "As the sun set, a reflection is observed on the surface of the water, creating a stunning visual effect."
Alternatives: "a reflection can be seen" or "a reflection is noted."
For 6,6′ -BZ, a weak reflection is observed at q of 1.8 Å–1 in its GIXD image, also suggesting the presence of π π interactions.
After that milling time, a new wide reflection is observed at approximately 0.356 nm.
A clear décollement reflection is observed at least 25 km landward from the FT. This profile reveals a landward-dipping thrust fault which branches upward from the plate-boundary interface at ∼70 km landward from the FT and produces the fault scarp at the seafloor.
The selective reflection is observed in the spectral range Δ λ = (n e – n o) P0 determined by the pitch and the ordinary n o and extraordinary n e refractive indices.
But in this case the d010 lattice spacing was found to be similar or lower than that of the δ form of sPS/chloroform complex and a new reflection was observed 2θ = 6.6°, indicating the formation of the ɛ form.
Also, a sharp, meridional reflection was observed in SAF as received and in DT after stretching at 100°C.
Of particular interest, a 29 Å reflection was observed to have meridional alignment indicating that the structural periodicity it arises from is aligned perpendicular to the film plane and thus perpendicular to the αSβ1 tape long axis.
Owl's eye morphological features, defined as large HCECs in which the nuclei have an area of high reflection surrounded by a halo of low reflection, were observed by in vivo laser confocal microscopy in patients with HCMV corneal endotheliitis.
As shown in Figure 1c, an obvious rainbow-colored reflection was observed from the same viewing angle.
A number of Bragg's reflection was observed in the X ray diffraction pattern of the AgNPs, showing 2Ɵ values of 38.67°, 44.95°, 65.45°, and 78.63° which corresponds to (111), (200), (220), and (311) sets of plane lattice, respectively.
