This paper addresses the design of an observer-based fault diagnosis scheme, which is applied to some of the sensors and actuators of a wind turbine benchmark model. The methodology is based on a modified sliding mode observer (SMO) that allows accurate reconstruction of multiple sensor or actuator faults occurring simultaneously. The faults are reconstructed using the equivalent output err...

This paper aims to show how mutual information can help provide a semantic interpretation of anomalies in data, characterize the anomalies, and how mutual information can help measure the information that object item X shares with another object item Y. Whilst most link mining approaches focus on predicting link type, link based object classification or object identification, this research focu...

Fractures of multi-scales and multi-origins are primary storage space effective seepage channels for metamorphic buried-hill reservoirs. They not only allow communication between various pores to enhance capacity, but also essential high yields. Fracture development controlling factors at reservoirs Bozhong 19-6 Gas Field were investigated based on imaging log, core data, experiments, e.g., thi...

this paper addresses the design of an observer-based fault diagnosis scheme, which is applied to some of the sensors and actuators of a wind turbine benchmark model. the methodology is based on a modified sliding mode observer (smo) that allows accurate reconstruction of multiple sensor or actuator faults occurring simultaneously. the faults are reconstructed using the equivalent output error i...

Anomalies in cyber-physical systems may arise due to malicious cyber attacks or operational faults in the physical devices. Accurately detecting the anomalies and isolating their root-causes is important for identifying appropriate reactive and preventive measures and building resilient cyber-physical systems. Anomaly detection and isolation in cyber-physical systems is challenging, because the...

The travertine deposit springs are located on the southeast of the Damavand Volcano, 85 km northeast of Tehran Province. The deposits of these springs mainly outcropped with cascade, hill, conical, layered, calcareous Tufa and Fissure-Ridges morphologies. Travertine studies have usually been conducted based on field observations, geochemistry and hydrology. The tectonic activity of the region, ...