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.
A recording of this electrical activity is called an EKG (electrocardiograph). The terms EKG and ECG mean the same thing. EKG comes from the German language while ECG comes from English. A standard EKG is obtained by placing 12 small electrodes on the patient's body in a specific pattern.