Results 31 to 40 of about 72,876 (262)
Prediction of Blade Tip Timing Sensor Waveforms Based on Radial Basis Function Neural Network
Applied Sciences, 2023 As the existing Blade Tip Timing (BTT) vibration measurement methods have serious under-sampling problems, where the blade resonance frequency is usually higher than the sampling frequency of the data acquisition system of the BTT method, resulting in ...
Liang Zhang +4 more
doaj +1 more source
Blade Crack Diagnosis Based on Blade Tip Timing and Convolution Neural Networks
Applied Sciences, 2023 The diagnosis of blade crack faults is critical to ensuring the safety of turbomachinery. Blade tip timing (BTT) is a non-contact vibration displacement measurement technique, which has been extensively studied for blade vibration condition monitoring ...
Guangya Zhu +5 more
doaj +1 more source
The Measurement of Turbomachinery Blade Vibration Through Tip Timing With Capacitance Tip Clearance Probes [PDF]
, 2020 Turbomachinery blade vibrations can cause High Cycle Fatigue, which reduces blade life. In order to observe this vibration a non-intrusive monitoring system is sought.
Paul C Ivey +2 more
core
Positive Feedback Defines the Timing, Magnitude, and Robustness of Angiogenesis
Cell Reports, 2019 Summary: Angiogenesis is driven by the coordinated collective branching of specialized leading “tip” and trailing “stalk” endothelial cells (ECs). While Notch-regulated negative feedback suppresses excessive tip selection, roles for positive feedback in ...
Donna J. Page +5 more
doaj +1 more source
, 2005 Turbomachinery blade vibrations can cause High Cycle Fatigue, which reduces blade life. In order to observe this vibration a nonintrusive monitoring system is sought. The vibration can be detected by measuring blade tip timing since in the presence of
Lawson, Craig P., Ivey, Paul C.
core +1 more source
Calpain small subunit homodimerization is robust and calcium‐independent
FEBS Letters, EarlyView.Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
wiley +1 more source
A Study on the High Load Operation of a Natural Gas-Diesel Dual-Fuel Engine
Frontiers in Mechanical Engineering, 2020 Diesel fueled compression ignition engines are widely used in power generation and freight transport owing to their high fuel conversion efficiency and ability to operate reliably for long periods of time at high loads.
Shouvik Dev, Hongsheng Guo, Brian Liko
doaj +1 more source
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Analysis and Calibration of Blade Tip-Timing Vibration Measurement Under Variable Rotating Speeds
IEEE Access, 2021 Blade tip timing (BTT) vibration measurement is a promising on-line blade monitoring method, but various uncertainties bring great challenge in engineering applications. Most existing works are based on the assumption of constant rotating speeds. However,
Zhongsheng Chen +3 more
doaj +1 more source
FEBS Letters, EarlyView.Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil +4 more
wiley +1 more source