The phrase "are widely explored" is correct and usable in written English.
It can be used when discussing topics, subjects, or areas of research that have been extensively studied or investigated.
Example: "The effects of climate change on biodiversity are widely explored in scientific literature."
Alternatives: "are extensively studied" or "are thoroughly examined".
Therefore, fundamental frequency, formants, energy, Mel Frequency Cepstral Coefficients (MFCC), or Linear Prediction Coefficients (LPC) are widely explored.
The derivatives of imidazo[2,1-b][1,3,4]thiadiazoles are widely explored for their biological potential viz.
Since the first time fluorescent semiconductor nanoparticles (quantum dots) were synthesized, they are widely explored due to their possible applications in many fields, including medicine.
Among these, gradient [10, 30 32] and local binary pattern (LBP) [5, 7, 33] based methods are widely explored and proved to be successful in different applications.
External factors that include economic environment and social networking are widely explored in different studies (Nichter and Goldmark 2005; Papadaki et al. 2002), however, the demand for the products/service of the firms, competition, facilities for training, financial availability are not widely discussed.
Biodegradable nano/microparticles of poly(D,L-lactide-co-glycolide) (PLGA) and PLGA-based polymers are widely explored as carriers for controlled delivery of macromolecular therapeutics such as proteins, peptides, vaccines, genes, antigens and growth factors.
This show conquers that sensation through the virtue of focus; one place, albeit with multiple aspects, is widely explored.
It is being widely explored as a possible treatment for heart disease, shock, cancer, pain and pulmonary hypertension, a potentially fatal condition in premature infants.
These introspective works are remarkable for their extensive use of internal monologue before this technique had been widely explored in other European literatures.
