The phrase "achieve a reference" is correct and usable in written English.
It can be used in contexts where one is discussing obtaining or reaching a certain standard, citation, or benchmark.
Example: "In order to complete the project successfully, we need to achieve a reference that meets industry standards."
Alternatives: "obtain a reference" or "attain a reference."
For this reason it is important to achieve a reference segmentation of the three main brain tissues in the target study, before starting the subcortical segmentation.
The percentage of patients in the intensive phase group that did not reach a reference value at 2 h after drug intake of at least 2 mg/liter (i.e., very low levels) was 34%; 33.3% of patients taking isoniazid biweekly did not achieve a reference value of 7 mg/liter at 2 h.
Given their complexity, in particular that of the hexaploid wheat genome, physical maps must be established as a scaffold for sequence assembly as it is simply not possible to achieve a reference genome sequence using whole genome shotgun approaches (Feuillet et al. 2011; Ariyadasa and Stein 2012).
Before the estimation of phase-synchronization, to achieve a reference-free evaluation, the current source density (CSD) at each electrode position was obtained by applying the spherical Laplace operator to the voltage distribution on the surface of the scalp [64].
Then a non-linear stochastic robust matching design methodology is introduced to withstand the intrinsic parameter fluctuations and to attenuate the extrinsic disturbances in order to achieve a desired reference matching purpose.
A common set of 15 stations was included in each subnetwork to achieve a stable reference frame for the entire time span.
The occlusal surfaces of the crowns were then flattened to achieve a standardized reference point to determine the working length.
‡ Yes if the comparison group in a specific study was changed by the authors in order to achieve a common reference group between studies.
Therefore, in order to achieve an adequate reference group, we decided to also include fire-fighters who joined this fire department after the disaster took place.
In order to face the need of archiving, correlating and analysing a large amount of data, a 3D GIS (Geographical Information System) was used to better manage the model and to achieve a useful methodological reference that would be available for the planning and construction of future underground works.
The results showed that while the integration of WGP sequence tags improves low quality assemblies, it does not reduce significantly the level of sequencing coverage (and cost) necessary to achieve a high quality reference sequence because of the inherent complexity of the wheat genome and the limited number of deconvoluted tags per BAC with the current approach.
