Hydrogen could decrease the ignition temperature and burn off temperature of methane evidently for a wide concentration range. The T10 and T90 decreased continuous with the increase of hydrogen. For 1 vol.% methane combustion, the T10 and T90 could decrease 45 Â°C and 42 Â°C when the H2/CH4 was equal to 0.05.
What is it? An electrocardiogram â abbreviated as EKG or ECG â is a test that measures the electrical activity of the heartbeat. With each beat, an electrical impulse (or âwaveâ) travels through the heart. This wave causes the muscle to squeeze and pump blood from the heart.
An electrocardiogram (EKG or ECG) is a test that checks for problems with the electrical activity of your heart. An EKG shows the heart's electrical activity as line tracings on paper. The spikes and dips in the line tracings are called waves.