Partial Pressure Curve

Relating oxygen partial pressure, saturation and content: the haemoglobin–oxygen dissociation curve

The delivery of oxygen by arterial blood to the tissues of the body has a number of critical determinants including blood oxygen concentration (content), saturation (S O2 ) and partial pressure, haemoglobin concentration and cardiac output, including its distribution. The haemoglobin-oxygen dissociation curve, a graphical representation of the relationship between oxygen satur-ation and oxygen ...

Partial Curve Matching under the Fréchet Distance∗

Curve matching is a fundamental problem which occurs in many applications. In this paper, we extend the Fréchet distance to measure partial curve similarity, study its properties, and develop efficient algorithms to compute it. In particular, under the L1 or L∞ metrics, we present an algorithm to compute, in O(m2) time, the partial Fréchet distance between a segment and a polygonal curve of siz...

Partial Pressure Measurement

The quadrupole mass spectrometer is now well established as the instrument used almost universally for partial pressure measurement. This spectrometer can be considered as a hot-cathode extractor ionisation gauge with the addition of an electrostatic mass filter between the ion source and the ion collector. This filter consists of a square array of circular rods approximately 6 mm diameter and ...

Ventricular pressure-volume curve indices with end-diastolic pressure.

Ventricular pressure-volume curve indices change with end-diastolic pressure.

Many indices have been proposed to describee the diastolic pressure-volume curve mathematically and permit quantification of the elastic properties of the myocardium itself in hopes that changes in the muscle caused by disease would b.e reflected in the diastolic pressure-volume curve. To date, none of the proposed indices has been shown convincingly to discriminate one group of patients from a...