The frequency of the electrical pulse can also be controlled. Vibrato is the pulse or wave in a sustained tone. Arteries constantly expand and contract with each heartbeat, i.e., the pulse. An electromagnetic pulse (EMP) is a burst of electromagnetic radiation. Heart rate is measured by finding the pulse of the heart. A sense of heat, headache, delirium, rapid pulse, and intense thirst accompanied the sweat. Eurocopter Tiger helicopter that can withstand an electromagnetic pulse. Aircraft carry transponders that transmit codes on reception of the pulse. Filamentation also refers to the self-focusing of a high power laser pulse. Transferring several bits on each clock pulse improves the card speed. The format of the horizontal sync pulse varies. Musicians use the device to practice playing to a regular pulse. ACP round by lowering the peak force of the recoil pulse. Any elevation of the jugular venous pulse is noted. A distinct thermal pulse was felt on bare skin.