Other Physical Sciences and Mathematics Commons^™

The Coronary Distribution Zone : Mathematical Modelling Of The Left Ventricular Epicardial Surface For Area Calculation, Three-Dimensional Rotaton And Display, S. Matts E. Sjölander

Loma Linda University Electronic Theses, Dissertations & Projects

A computer model of the left ventricular (LV) epicardial surface was developed from Jang’s truncated ellipsoidal model, which has a minor to major axis ratio of 6:10. The model was applied in calculating the area of a segment of the myocardium, jeopardized by an impending occlusion of its associated artery. The endangered segment of the LV muscle was also visualized in different projections by rotations in three space and graphical displays simulating the three dimensions.

The area formula for the surface of the ideal model , a truncated prolate spheroid, was derived and used in producing maps for manual calculations …

On The Mechanical Properties Of A1.20% Si Splat Cooled Alloy, Ahmed Wahid Tewfik

Archived Theses and Dissertations

No abstract provided.

Energry Loss Through Storage, Richard C. Heyser

Unpublished Writings

Richard C. Heyser prepared this article for submission in Science magazine. The process of storing energy under equilibrium conditions loses work that could have been obtained directly from the source of energy. This is independent of the form of the energy and can be extended to the analysis of situations otherwise difficult to formulate in a common description, such as multiple energy conversions involving solar, electrical, chemicl, and mechanical storage.