The phrase "a number of absorption" is not correct in written English.
It is likely intended to refer to multiple instances or types of absorption, but the phrasing is awkward and unclear.
Example: "The study examined a number of absorption processes in different materials."
Alternatives: "several instances of absorption" or "various types of absorption".
A number of absorption and desorption cycles at different temperatures and pressures has been carried out in order to see if the results are comparable with laboratory data obtained on small amounts (fractions of grams) of powder samples.
In our observation of the LMXB XB 1323-619 made with XMM-Newton in January 2003, a number of absorption lines were discovered, notably at 6.70 and 6.98 keV which we identify with scattering by high ionization state ions Fe XXV and Fe XXVI.
The Sjp displays a number of absorption peaks, reflecting its complex nature (Fig. 9a).
The spectra display a number of absorption peaks indicating the complex nature of the examined adsorbent.
The FL leaves display a number of absorption peaks, reflecting the complex nature of the FL.
The control sample demonstrated the presence of a number of absorption peaks and reflected the complex nature of the biomass.
Typically, the continuous spectrum is also overlaid with a number of dark absorption lines.
A number of hydrogen absorption and desorption cycles at different temperatures and pressures was carried out to compare the behaviour of the small reactor with the laboratory data obtained on small amounts (fractions of grams) of powdered and pelletized samples.
The mixture is separated in a distillation column and the components are remixed in a number of evaporation-absorption cells, linked in a material cascade.
To confirm the specificity of the immunostaining, and to see whether the antibodies in SNMG, like many in AChR-MG, bound the AChR α-subunit, we performed a limited number of absorption studies, using purified recombinant proteins representing the extracellular domains of the AChR α- and δ-subunits and MuSK as a control.
Srikhirin et al. (2001) described a number of research options of absorption refrigeration technology and provided a comparison of the various types of absorption refrigeration systems.
