Displaying articles by keyword Helicity

Criteria of identification of individual heart cycle phases according to an ECG curve are described in this paper.

Diagnostic parameter “arterial pressure” known in medical practice from the earliest times is now widely used for assessment of body…

Leonardo da Vinci perhaps was the first who paid attention to the energetic efficiency of existence of vortices emerging near…

A review and a critical analysis of the specialized literature on justification for the measurement equation and an estimation of…

Leonardo da Vinci perhaps was the first who paid attention to the energetic efficiency of existence of vortices emerging near sines of Valsalva and defining normal functioning (opening) of aortal valve. However up to now a fundamental problem of defining of mechanisms of mysterious energetic efficiency of functioning of cardio-vascular system (CVS) of blood feeding of the organism is still remaining significantly not solved and this is, for example, one of the main restriction for the creation of artificial heart and corresponding valve systems.

This paper deals with solving of a century-old paradox of linear stability for the Hagen-Poiseuille flow. A new mechanism of dissipative hydrodynamic instability has been established herein, and a basis for the forming of helical structural organization of bloodstream and respective energy effectiveness of the cardiovascular system functioning has been defined by the authors.

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