DETECTING OF BARELY VISIBLE IMPACT DAMAGE ON CARBON FIBER REINFORCED POLYMER USING DIFFUSION ULTRASONIC IMPROVED BY TIME-FREQUENCY DOMAIN DISTURBANCE SENSITIVE ZONE

Based on the decorrelation calculation of diffusion ultrasound in time-frequency domain, this paper discusses the repeatability and potential significance of Disturbance Sensitive Zone (DSZ) in time-frequency domain.The experimental study of Barely Visible Impact Damage (BVID) on Carbon Fiber Reinforced Polymer (CFRP) is carried out.The decorrelati

Heart murmurs are abnormal heartbeat patterns that could be indicative of a serious heart condition, which can only be detected by trained specialists with the use of a stethoscope.However, it is occasionally the case that those specialists are not available, resulting NEUROMED KIDS in the need for a machine-automated system for murmur detection.Ma

This study aims to examine the trophic state conditions in the three major urban perennial lakes of the Coimbatore district based Lacrosse - Protective - Shoulder Pads on the physicochemical properties and rotifer community structure.The study was conducted for a period of three months, from January 2023 to March 2023.The water and plankton samples