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.
Your doctor may suggest you get an electrocardiogram -- also called an EKG or ECG -- to check for signs of heart disease. It's a test that records the electrical activity of your ticker through small electrode patches that a technician attaches to the skin of your chest, arms, and legs. EKGs are quick, safe, and painless.