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Journal of food engineering, ISSN 0260-8774, 03/2021, Volume 292, p. 110284
... including bubble size distribution, dissolved oxygen concentration and viscosity were investigated... 
Freezing efficiency elevation | Immersion freezing | Nano-bubbles | Bubble size stability | Ultrasound-assisted freezing | Variable-frequency
Journal Article
Mechanical systems and signal processing, ISSN 0888-3270, 02/2021, Volume 148, p. 107136
[Display omitted] •A new time–frequency representation is proposed for multivariate signals.•Instantaneous modal identification is achieved for linear... 
Non-stationary signal | Time–frequency representation | Modal identification | Structural health monitoring | Modal assurance | Multivariate signal
Journal Article
Mechanical systems and signal processing, ISSN 0888-3270, 02/2021, Volume 149, p. 107222
•Velocity distribution model of flexible thin-wall ellipse bearing (FTEB) is proposed.•Find that FTEB has radial velocity, which is not possessed by ordinary bearings... 
Fluctuant feature frequency | Flexible thin-wall ellipse bearing | Radial velocity | Time-varying | Kinematic characteristics | Velocity model
Journal Article
International journal of electrical power & energy systems, ISSN 0142-0615, 02/2021, Volume 125, p. 106440
•Parallel PV/BSSs are integrated with the grid using a VSG control.•The VSG control is utilizing an ADC for the system frequency regulation.•GA optimization is... 
Virtual synchronous generator | Multiple VSGs coordination | PV grid integration | Genetic algorithm optimization | Frequency regulation
Journal Article
Applied acoustics, ISSN 0003-682X, 01/2021, Volume 172, p. 107609
.... The distribution of the FRAZ spectra of linear array received signal are derived in this paper to set the parameters of Hidden Markov Models (HMM... 
Track-before-detect | HMM | Viterbi algorithm | Space-frequency joint method | FRAZ spectra | Line-spectrum detection and tracking
Journal Article
IEEE transactions on power electronics, ISSN 0885-8993, 01/2021, Volume 36, Issue 1, pp. 991 - 1003
Journal Article
IEEE transactions on power electronics, ISSN 0885-8993, 01/2021, Volume 36, Issue 1, pp. 1184 - 1192
Journal Article
Journal of petroleum science & engineering, ISSN 0920-4105, 01/2021, Volume 196, p. 107399
... of a series of photographs of the free-flow field structure and the measurement of the pressure distribution... 
Nozzle pressure ratio | Air jet | Pulsation frequency | Surface treatment | Hole drilling
Journal Article
Applied acoustics, ISSN 0003-682X, 01/2021, Volume 171, p. 107569
•This paper proposes a new data-driven model based on neural network, aiming at the high cost of locating target location estimation of ultra-low frequency... 
Location estimation | Shallow sea | Vector hydrophone | Low frequency
Journal Article
Mechanical systems and signal processing, ISSN 0888-3270, 01/2021, Volume 146, p. 107006
•The formula of window bandwidth in determining non-stationarity factor is derived.•Convert mode superposition method into time domain to solve non-stationary... 
Window width | Non-stationary | Dynamic stress | Vibration fatigue | Convolution integral | CYCLE DISTRIBUTION | SHAPES | MODAL-ANALYSIS | DAMAGE | ENGINEERING, MECHANICAL | PREDICTION | FREQUENCY | CRITERION | LIFE ESTIMATION | NON-STATIONARITY
Journal Article
Electric power systems research, ISSN 0378-7796, 01/2021, Volume 190, p. 106836
Increasing penetration of power electronics interfaced generation decreases the stability of the system, due to the absence of the rotational inertia in their... 
Smart transformer | Frequency support | Voltage support | Inertia emulation | High wind penetration
Journal Article
Measurement : journal of the International Measurement Confederation, ISSN 0263-2241, 01/2021, Volume 168, p. 108322
•Proposing a new method for detecting fault occurrence and fault severity by combining different numerical indices.•Introducing a new method for detecting the... 
Measurement | Numerical indices | Transformer | Frequency Response Analysis (FRA) | Fault detection
Journal Article
IEEE transactions on power electronics, ISSN 0885-8993, 01/2021, Volume 36, Issue 1, pp. 815 - 828
In high-frequency inductors, ac winding losses are affected by skin and proximity effects, including uneven current distribution due to fringing magnetic fields around air gaps... 
fringing effects | Magnetic cores | Air gaps | Windings | Inductors | Standards | inductor ac loss minimization | Resistance | Analytical models | high-frequency inductors | distributed air gaps | AC inductor losses | planar inductors
Journal Article
IEEE transactions on power electronics, ISSN 0885-8993, 01/2021, Volume 36, Issue 1, pp. 607 - 616
... the magnetic components. The turns-ratio design of the two transformers is analyzed by the current stress and power distribution of both transformers with two different cases... 
Integrated circuits | pulsewidth modulation (PWM) | transformers | Resonant frequency | Resonant converters | DC-DC power converters | zero voltage switching (ZVS) | Topology | Voltage control | Frequency control
Journal Article
IEEE transactions on information forensics and security, ISSN 1556-6013, 2021, Volume 16, pp. 236 - 248
Recently, it has been discovered that the electric network frequency (ENF) could be captured by digital audio, video, or even image files, and could further be... 
signal detection | Forensics | Gaussian noise | electric network frequency | Digital forensics | Detectors | Interference | GLRT detector | Audio recording | Passband | Time-domain analysis | ENF detection | SIGNAL | MAXIMUM-LIKELIHOOD | ALGORITHM | IDENTIFICATION | ENGINEERING, ELECTRICAL & ELECTRONIC | TIMESTAMP | COMPUTER SCIENCE, THEORY & METHODS
Journal Article
Electric power systems research, ISSN 0378-7796, 01/2021, Volume 190, p. 106667
•Develop deterministic models for EV flexibility based on FCR technical requirements.•Stochastic analysis of EV charging stations (EVCS) behaviour.•Estimate... 
Ancillary service | Electrical vehicle charging stations | Frequency containment reserves markets
Journal Article
Agricultural water management, ISSN 0378-3774, 01/2021, Volume 243, p. 106458
•Design a new type of aeration impact sprinkler (two-phase flow).•Compare the drop size distribution of single-phase flow and two-phase flow Impact sprinkler at different low pressure... 
Drop size distribution | Droplet velocity | Frequency distribution | Kinetic energy | Aeration nozzle | Impact sprinkler
Journal Article
Electric power systems research, ISSN 0378-7796, 01/2021, Volume 190, p. 106643
•Optimal BESS control for concurrent primary frequency and local voltage regulation.•Real-time BESS control considering variable capability curves.•BESS... 
Battery energy storage system | Voltage regulation | Primary frequency control
Journal Article
Experimental thermal and fluid science, ISSN 0894-1777, 01/2021, Volume 120, p. 110222
.... A dual-sensor electrical probe measurement system was used to obtain the distributions of multiple two-phase flow parameters... 
Bubble frequency | Void fraction | Gas injection | Slot nozzle | Interfacial area density | Two-phase flow
Journal Article
Italian Journal of Animal Science, ISSN 1594-4077, 12/2020, Volume 19, Issue 1, pp. 887 - 895
The objective of our study was to compare animal performance of a simplified feeding system, named easy feeding (EF), with animal performance of a total mixed... 
feeding behaviour | corn silage | Milk production | farmer adoption | AGRICULTURE, DAIRY & ANIMAL SCIENCE | FORAGE | PERFORMANCE | BEHAVIOR | LEVEL | FOOD PREFERENCE | CONCENTRATE | PERSPECTIVES | FREQUENCY | VETERINARY SCIENCES | DIETS
Journal Article
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