Modeling cycle-to-cycle variations in spark ignited combustion engines by scale-resolving simulations for different engine speeds
Sign Up to like & getrecommendations! Published in 2019 at "Applied Energy"
DOI: 10.1016/j.apenergy.2019.03.198
Abstract: Abstract Here, internal combustion engine operating speed effects on combustion cycle-to-cycle variations (CCV) are numerically investigated. The recent study by Ghaderi Masouleh et al. (2018) is extended to higher engine speeds including 560, 800 and… read more here.
Keywords: cycle; rpm; time; cycle cycle ... See more keywords
The extremal α-index of graphs with no 4-cycle and 5-cycle
Sign Up to like & getrecommendations! Published in 2021 at "Linear Algebra and its Applications"
DOI: 10.1016/j.laa.2021.02.022
Abstract: Abstract Given any real α ∈ [ 0 , 1 ] , the α-index of a graph G is the largest eigenvalue λ α ( G ) of the matrix A α ( G )… read more here.
Keywords: cycle; graphs cycle; cycle cycle; extremal index ... See more keywords
Phase-averaged and cycle-to-cycle analysis of jet dynamics in a scaled up vocal-fold model
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2021.365
Abstract: Abstract Phase-averaged and cycle-to-cycle analysis of key contributors to sound production in phonation is examined in a scaled-up vocal-fold model. Simultaneous temporally and spatially resolved pressure and velocity measurements permitted examination of each term in… read more here.
Keywords: cycle; model; cycle cycle; vocal fold ... See more keywords
Revisiting the Kepler non-Blazhko RR Lyrae sample: cycle-to-cyle variations and additional modes
Sign Up to like & getrecommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stz833
Abstract: We analyzed the long and short cadence light curves of the Kepler non-Blazhko RRab stars. We prepared the Fourier spectra, the Fourier amplitude and phase variation functions, time-frequency representation, the O-C diagrams and their Fourier… read more here.
Keywords: non blazhko; cycle; additional modes; kepler non ... See more keywords
Large-Signal Stability Guarantees for Cycle-by-Cycle Controlled DC–DC Converters
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Control Systems Letters"
DOI: 10.1109/lcsys.2022.3225586
Abstract: Stability guarantees are critical for cycle-by-cycle controlled dc-dc converters in high performance applications including microprocessors and LiDAR. Traditional stability analysis on cycle-by-cycle dc-dc converters is incomplete because the inductor current ramps are considered fixed; however,… read more here.
Keywords: cycle; stability guarantees; cycle controlled; cycle cycle ... See more keywords
A Cycle by Cycle FSK Demodulator With High Sensitivity of 1% Frequency Modulation Index for Implantable Medical Devices
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Circuits and Systems I: Regular Papers"
DOI: 10.1109/tcsi.2022.3195306
Abstract: This paper presents a cycle by cycle Frequency Shift Keying (FSK) demodulator, able to demodulate a FSK signal with 1% frequency modulation index (MI), in a single cycle. Based on the proposed demodulation scheme, a… read more here.
Keywords: cycle; fsk demodulator; frequency; cycle cycle ... See more keywords
Next-Cycle Optimal Dilute Combustion Control via Online Learning of Cycle-to-Cycle Variability Using Kernel Density Estimators
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Control Systems Technology"
DOI: 10.1109/tcst.2022.3149423
Abstract: Dilute combustion using exhaust gas recirculation (EGR) presents a cost-effective method for increasing the efficiency of spark-ignition (SI) engines. However, the maximum amount of EGR that can be used at a given condition is limited… read more here.
Keywords: cycle; online learning; cycle variability; combustion ... See more keywords
Adaptive Equivalent Consumption Minimization Strategy for Off-Road Hydraulic Hybrid Vehicles: A Cycle-to-Cycle Optimization Approach
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2021.3136658
Abstract: The energy management strategy is the key factor for hybrid vehicles since it determines how efficiently the engine power is transferred to the wheels. As a local-optimal and implementable strategy, the equivalent consumption minimization strategy… read more here.
Keywords: equivalent consumption; cycle; strategy; consumption minimization ... See more keywords
A hybrid method of tests coupled with simulations used to detect the working processes of an automotive engine from cycle to cycle in transient conditions
Sign Up to like & getrecommendations! Published in 2017 at "Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering"
DOI: 10.1177/0954407016685627
Abstract: To improve the actual performance of an automotive engine, an approach consisting of dynamic signal measurements coupled with gas dynamics–thermodynamics process simulations is proposed; this is used to detect the working processes of an automotive… read more here.
Keywords: used detect; engine; transient conditions; cycle ... See more keywords
The influence of hydrous ethanol gasoline on cycle-to-cycle variation of a spark ignition engine
Sign Up to like & getrecommendations! Published in 2018 at "Thermal Science"
DOI: 10.2298/tsci171221095w
Abstract: This paper aims to investigate the effects of HE20 hydrous ethanol gasoline (20% hydrous ethanol v/v) on the cycle-to-cycle variation in a spark ignition engine. Comparative experiments were carried out on a port fuel injection… read more here.
Keywords: variation; engine; cycle variation; cycle ... See more keywords
Online Lifetime Prediction for Lithium-Ion Batteries with Cycle-by-Cycle Updates, Variance Reduction, and Model Ensembling
Sign Up to like & getrecommendations! Published in 2023 at "Energies"
DOI: 10.3390/en16073273
Abstract: Lithium-ion batteries have found applications in many parts of our daily lives. Predicting their remaining useful life (RUL) is thus essential for management and prognostics. Most approaches look at early life prediction of RUL in… read more here.
Keywords: cycle; ion batteries; cycle cycle; lithium ion ... See more keywords