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.
A stress test can determine if you have heart disease. A doctor or trained technician performs the test. Heâll learn how much your heart can manage before an abnormal rhythm starts or blood flow to your heart muscle drops. There are different types of these. The exercise stress test -- also known as an exercise electrocardiogram, treadmill test, graded exercise test, or stress EKG -- is used most often. It lets your doctor know how your heart responds to being pushed. Youâll walk on a treadmill or pedal a stationary bike. Itâll get more difficult as you go.