ACUTE CHEST PAIN - A PROSPECTIVE POPULATION BASED STUDY OF CONTACTS TO NORWEGIAN EMERGENCY MEDICAL COMMUNICATION CENTRES

Abstract Background Acute chest pain is a frequently occurring symptom in patients with medical emergencies and imposes potentially life threatening situations Salts outside hospitals.Little is known about the epidemiology of patients with acute chest pain in a primary care setting in Norway, and we aimed to obtain more representative data on such

When rotating machinery fails, the consequent vibration signal contains rich fault feature information.However, the vibration signal bears the characteristics of nonlinearity and nonstationarity, and is easily disturbed by noise, thus it Cordless Blowers may be difficult to accurately extract hidden fault features.To extract effective fault feature