Mathematical model of erythrocytes as point-like sources

Mathematical model of erythrocytes as point-like sources.

A new approach to investigate the effect of pericapillary gradients, caused by the particulate nature of blood, on oxygen partial pressure (pO2) in tissue is presented. The blood erythrocytes are modeled as point-like sources, which makes the system independent of the geometry of the erythrocytes. This model is semi-analytical and is developed to estimate the pO2 far from the erythrocytes. It d...

Mathematical model of multiflute drill point

Multiflute drilling is an efficient means of making high accuracy holes without reaming. Because of the current lack of a comprehensive mathematical model for this kind of drilling, this paper presents a complete and simple method for designing multiflute drills. There are three special features of the proposed model. The first is that rotational axial-type cutting tools and disk-type abrasive ...

Mathematical Model of Stagnation Point Flames

Noncommutative gravity in three dimensions coupled to point-like sources

Noncommutative gravity in three dimensions with no cosmological constant is reviewed. We find a solution which describes the presence of a torsional source. 1 What does ‘noncommutative’ mean? Please see [1] for a review of noncommutative field theory, if you want to study more. Consider noncommutative coordinates, for example [x, y ] = i θ , (1) where θ is a real constant. Then the ‘uncertainty...

Detection of point sources

Photometry of individual sources requires an initial phase of detection. The detection process can be separated into two phases: (1) preprocessing of the image, and (2) actual detection, yielding a list of discrete sources. Given a distribution of background intensities, the probabilityof intensitydeviations for light sources as a result of the background can be calculated. Setting a maximum ac...