Home > Consumer > Hydrogen > Basics > Utilization > Internal Combustion Engines. Hydrogen has a high specific energy, high flame speed, wide range of flammability, and clean burning characteristics which suggest a possibility of high performance in internal combustion engines (ICE). These attributes have been realized for more than half a century since the onset of hydrogen engine development.
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on the skin.
ECG, EKG Cardiology A non-invasive test of the electrical activity of heart's conduction system, which is transformed into recordings on graph paperâan electrocardiograph; in an EKG, electrodesâleads are placed on 12 specific sites of the body: standard limb leadsâI, II, III, augmented limb leadsâaV r , aV l, and aV f, and precordial or chest leadsâV 1 to V 6; EKG tracings consist of 3 major components: the P wave, which indicates atrial depolarization, the QRS complex ...