The literature review indicates that while the. effect of orifice geometry on the injector flow and spray processes has been examined to. some extent, its influence on engine combustion and emissions is not well established (Som, 2010b, 2011). To the best of our knowledge, the influence of nozzle geometry on spray and.
Vertigo Symptoms and Signs. Vertigo is a feeling that you are dizzily turning around or that your surroundings are dizzily turning about you. Vertigo is usually due to a problem with the inner ear but can also be caused by vision problems and other conditions.Vertigo is medically distinct from dizziness, lightheadedness, and unsteadiness in that vertigo involves the sensation of movement.ertigo is a feeling that you are dizzily turning around or that your surroundings are dizzily turning about you. Vertigo is usually due to a problem with the inner ear but can also be caused by vision problems and other conditions.
In medical terms, vertigo is a specific kind of dizziness - a sense that you, or your environment, is moving or spinning, even though there is no movement.1,2. In the medical sense, vertigo does not mean a fear of heights. Instead, acrophobia is the diagnostic term used to refer to a fear of heights that is excessive and inappropriate to a situation. Vertigo, then, is a specific symptom unrelated to heights that has various medical causes.