Introduction High sensitive troponin T (hsTnT) is a highly specific marker of myocardial injury and one of the keystones in the diagnosis of acute coronary syndrome. Although hsTnT is thought to be released by myocardial cell damage, recent studies reported elevated levels after exercise testing and endurance sports. The exact mechanism of this phenomenon is discussed controversially. CMR stres...

Vibration-based damage detection tools are frequently employed because of their advantages over other non-destructive techniques. This paper presents an improved Frequency Response Function (FRF) indicator for identification in complex structures. To verify the effectiveness indicator, different structures used, namely a 20-Bar Planar Truss (2D), 28-Bar Space (3D), 72-Bar Truss, and 600-bar Tru...

Electrochemical devices have received particular attention due to their rapid detection and great sensitivity for the evaluation of DNA-hazard compounds interaction mechanisms. Several types of bioanalytical method use nucleic acids probes to detect DNA damage. This article reviews current directions and strategies in the development and applications of electrochemical DNA sensors for the detec...

The problem of the underwater structure disease bridge is increasingly obvious, which has seriously affected safe operation structure, so it necessary to detect regularly. There are many kinds diseases. This paper targets structural crack diseases adopts multiple image recognition networks for verification, compares advantages different networks, and takes YOLO-v4 network as main body build a l...

The vibration pattern of a rotor system reflects the mechanical parameter changes in the system. Hence, the use of vibration monitoring is considered as a possible means of detecting the presence and growth of the cracks. In this paper, a pattern search based method for shaft crack detection is proposed and described which formulates the shaft crack detection as an optimization problem by means...

differential transform method has been applied to solve many functional equations so far. in this article, we have used this method to solve wave-like equations. differential transform method is capable of reducing the size of computational work. exact solutions can also be achieved by the known forms of the series solutions. some examples are prepared to show theefficiency and simplicity of th...

dental caries, a progressive bacterial damage to teeth, is one of the most common diseases that affects 95% of the population and is still a major cause of tooth loss. unfortunately, there is currently no highly sensitive and specific clinical means for its detection in its early stages. the accurate detection of early caries in enamel would be of significant clinical value. since, it is possib...

With the unceasing exploitation of gas fields, casing damage is an important element which restrict oil-gas throughput. In this paper we present an distributed optical fiber Bragg grating analysical method in the Real-time Casing Damage Monitoring Work which through the study of the main type and damage of casing damage, analysis and comparison of the casing damage monitoring method, responding...

A damage detection method is presented for the identification and quantification of damage. The proposed method uses finite element method to extract modal parameters of cracked and intact cantilever beam. The damage is simulated by fracture mechanics concept by introducing cracked elements at different locations with predetermined magnitude of depth. The curvature response function, function o...

A damage detection method utilizing Support Vector Machine (SVM) for bending structures is proposed. The SVM was recently proposed as a new technique for pattern recognition. The SVM is a powerful pattern recognition tool applicable to complicated classification problems and is effectively utilized in the method. Based on the modal frequency changes, the damage location and its severity are def...