The phrase "axis theory" is correct and usable in written English.
It can be used in contexts related to scientific, mathematical, or philosophical discussions where a specific framework or model is being described.
Example: "In her research, she proposed an innovative axis theory that redefined our understanding of spatial relationships in geometry."
Alternatives: "axis model" or "axis framework".
The formulation is based on an orthotropic principal axis theory recently developed for nonlinear elastic problems.
The neutral axis theory is introduced to analyze the temperature distribution in the cross section of a part, and then predict the warping trend.
This has led to the postulation of the ACh-Ca2+-OFR axis theory [ 15, 16].
Specifically, we tested whether the Immune-Pineal Axis theory can be applied in the brain and whether it confers special protection to areas that can locally produce melatonin following injury.
It has been identified that the increased ACh during myocardial ischemia/reperfusion was one of the major causes of myocardial injury to result in the ACh-Ca2+-OFR axis theory [ 15, 16].
According to the mitochondrial-lysosomal axis theory of ageing, mitochondrial stress and oxidative damage to cytosolic proteins lead to the formation of "biological garbage" - cross-linked proteins and lipids resistant to enzymatic degradation - which are then delivered to lysosomes through the autophagic pathway [ 53, 54].
As pointed out earlier in this review, there is a close relation between lysosomes and mitochondria, which is the basis of the lysosomal mitochondrial axis theories of ageing and apoptosis (Terman et al. 2006).
Finally, in contrast to the well-established mitochondrial-axis theory [ 32], we found that the accumulation of lipid, induced by chloroquine, is not seen with an oxidative stress model, which is possibly only a secondary factor.
Last, the 3-axis milling theory was proposed to manufacture the entity.
The existing torque roll axis decoupling theories for powertrain mounting systems assume a rigid foundation, thus ignoring dynamic interactions between the powertrain and other sub-systems.
If you lumber a plot with repartee about dodgy tree-ring data, Al Gore's Y-axis and the saturation theory of CO2, why not get it right?
