The phrase "directions to which" is correct and usable in written English.
You can use this phrase when referring to an action or decision that has been pre-determined or pre-ordained. For example, "We must abide by the directions to which our lawyer has assigned us."
By an accurate evaluation of the status of research, the review delineates the most promising directions to which research should address for consistent progress in the field of peripheral nerve repair.
Their findings on the elucidation of relaxation dynamics and the synthetic strategies towards high-performance Ln-SMMs provide valuable insights required to optimize the contribution of an Ising type spin to a molecular magnet and indicate the directions to which further synthetic efforts should be focused.
In DTI, for each voxel, the diffusion-weighted signal is evaluated in several directions to which a diffusion tensor is fitted.
On the telephone, I tried to suggest to Gleason that the vector of my assignment was aimed in that direction, to which he said, "So long, pal".
Population gradually shifted in the direction to which the capital was shifting; this led to neglect of the interconnected systems of water storage.
Aspect generally refers to the direction to which a mountain slope faces.
The aspect of a terrain is the direction to which it faces.
The results observed with the USEI also point to some new research direction to which the USEI maybe useful.
In the next two theorems we determine the λ-direction to which the continua from Theorem 1.1 bifurcate.
A model has been developed, which takes into account leakage of the microstrip line in the reverse direction to which we excite the traveling wave.
The only direction to which I can avert my eyes is up toward a row of televisions.
