The merits of using solvent in EM heating include diluting heavy oil and thereby increasing its mobility, serving as a heat carrier by reinforcing heat convection in porous media and facilitating gravity drainage by forming a vapor chamber.
For example, cytoskeletal elements translocate chloroplasts under high light conditions [ 15], facilitate gravity sensing [ 16], and direct cellular response to wounding [ 17, 18].
In fact, muscles like masseters have to regulate precisely their force during mastication, depending on the hardness of the food or on the need to manage an object kept between teeth, while suprahyoid muscles mainly intervene to accelerate the mouth opening, facilitated by gravity and by diminishing of the jaw closer muscle tone.
In the presence of heat losses, more steam would be consumed, to cover in part the undesired heat losses across the porous medium boundaries, than the volume which is truly needed to facilitate the gravity drainage process.
The net amount of steam needed to facilitate the gravity drainage process was then calculated by subtracting the cumulative volume of steam needed to provide for the heat losses from the total cumulative steam injected.
If this volume of the water condensate is subtracted from the total injected steam, it results in obtaining the volume of steam, in terms of CWE, required to facilitate the gravity-dominated process to the extent of achieving ultimate recovery factor values reported at the end of each particular SAGD trial.
Test tube/syringe stands or decanting stands are available to facilitate this initial gravity separation.
Therefore, gravity facilitates positive phototaxis because it brings the spheroids into the optimal orientation to swim toward the light source.
7. Gravity facilitates positive phototaxis due to the anisotropic mass distribution with the posterior of the spheroid being heavier than the anterior that results in the anterior, which contains the larger eyespots, always facing the top, where the light source normally is located.
