The phrase "a lack of efficient" is not correct in written English.
It should be followed by a noun, such as "a lack of efficient processes" or "a lack of efficient methods."
Example: "The project failed due to a lack of efficient communication among team members."
Alternatives: "a deficiency in efficiency" or "an absence of efficiency."
However, it cannot efficiently use lignocellulosic substrates, due to a lack of efficient cellulase and hemicellulase systems.
A current bottleneck in the practical implementation of singlet fission is a lack of efficient materials.
A separate internal review commissioned by the department and undertaken by Robert Cornall also found there was a lack of efficient management of FoI by the department.
However, there is still a lack of efficient methods for directly observing these cationic species due to their relatively low abundance and extremely short lifetimes.
Renal fibrosis is a common progressive kidney disease, and there is a lack of efficient treatment for the condition.
Besides, there is a lack of efficient feature selection technique for designing the input vector of electricity price forecast.
A lack of an efficient risk assessment method to evaluate the major hazard (procedure) in harbor engineering has become a vital reason for frequent grave accidents in harbor engineering area.
All of these results strongly suggested a lack of an efficient anti-oxidative response in the presence of atrazine.
There is a lack of cost-efficient but precise measurement methods to determine φ of randomly distributed long-carbon-fiber-reinforced materials.
There is a documented lack of efficient technology in EHR systems to establish a legal hold on patients' records and it is costly to put a legal hold on one particular patient in EHR systems [10].
However, most investigators conducting GWAS do not consider gene-environment interactions in their search for new genes due to a current lack of efficient statistical methods for detecting interactions in high-volume genetic data.
