Valuable conclusions on the effect of. loads and heating on concrete explosive spalling are shown in the paper. Keywrds: High-strength concrete, fire, explosive spalling, columns, heating rate, axial loads. INTRODUCTION. Concrete spalling under high temperatures is a major factor of reducing itâs fire resistance.
Abnormal heart rhythms are called arrhythmias. There are two kinds of cardioversion. Your doctor may give you one or more medicines to bring back your regular heartbeat. This is called pharmacologic (chemical) cardioversion. Doctors also restore regular rhythms by sending an electrical shock to the heart. This is called electrical cardioversion.
The idea of cardiac stress tests is putting the heart under stress and seeing what happens. If the heart tolerates the stress, one can feel confident there isnât significant heart disease, which most often comes in the form of blockages in the arteries that supply blood to the heartâthe coronary arteries. A stress test is usually done with a treadmill or bike.