Results 61 to 70 of about 3,345,371 (299)
A robust fault detection method of rolling bearings using modulation signal bispectrum analysis [PDF]
, 2015 Envelope analysis is a widely used method for bearing fault detection. To obtain high detection accuracy, it is critical to select an optimal narrowband for envelope demodulation.
Gu, Fengshou +4 more
core +2 more sources
A Desk-top tutorial Demonstration of Model-based Fault Detection and Diagnosis [PDF]
, 2007 In this paper, a demonstration on the model-based approach for fault detection has been presented. The aim of this demo is to provide students a desk-top tool to start learning model-based approach.
Gu, Fengshou +3 more
core +3 more sources
International Journal of Electrical Power & Energy SystemsAiming at the problem that the accuracy of fault location in the collection line supported by energy storage for wind power grid connection is easily affected by the number of measurement points and the access of power electronic equipment, a fault ...
Hongchun Shu +3 more
doaj +1 more source
FEBS Letters, EarlyView.We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace +6 more
wiley +1 more source
International Journal of Electrical Power & Energy SystemsThe challenge of extinguishing arc grounding faults persists as cable-based distribution networks become more prevalent. Current single injection arc extinction methods struggle to effectively mitigate arc grounding faults in unbalanced distribution ...
Hongchun Shu +3 more
doaj +1 more source
Fault Indicators of Partial Discharges in Medium-Voltage Systems
Advances in Electrical and Electronic Engineering, 2013 The safety and reliability of the electricity system, these are the two basic keywords present in the energy sector. One of the ways to improve the overall security of the electricity system is to reduce the failure rate of transmission lines.
Stefan Hamacek, Stanislav Misak
doaj +1 more source
FEBS Letters, EarlyView.Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley +1 more source
Numerically reliable methods for optimal design of fault detection filters [PDF]
, 2005 The design problem of fault detection and isolation filters is formulated as a model matching problem and solved using an H2-or H1-norm optimization approach.
Varga, Andreas
core
The fault detection and severity diagnosis of rolling element bearings using modulation signal bispectrum [PDF]
The rolling element bearing is a key part in many mechanical equipment. The accurate and timely diagnosis of its faults is critcal for predictive maintenance. Vibration signals from a defective bearing with a localized fault contain a series of impulsive
Gu, Fengshou +3 more
core +2 more sources
International Journal of Electrical Power & Energy SystemsThe DC circuit breaker (DCCB) is a critical device that ensures the safe and reliable operation of the DC transmission system. As the level of DC voltage and transmission power increases, the flexible DC grid will need more and more opening capacity of ...
Hongchun Shu, Zongxue Shao, Yue Dai
doaj +1 more source