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Relevant bibliographies by topics / Non-stationary COP signal

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Academic literature on the topic 'Non-stationary COP signal'

Author: Grafiati

Published: 14 March 2023

Last updated: 31 July 2025

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Journal articles on the topic "Non-stationary COP signal"

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Michalska, Justyna, Rafał Zając, Krzysztof Szydło, Dagmara Gerasimuk, Kajetan J. Słomka, and Grzegorz Juras. "Biathletes present repeating patterns of postural control to maintain their balance while shooting." PLOS ONE 17, no. 5 (2022): e0267105. http://dx.doi.org/10.1371/journal.pone.0267105.

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Balance can be a main factor contributing to success in many disciplines, and biathlon is a representative example. A more stable posture may be a key factor for shooting scores. The center of foot pressure (COP) is commonly recorded when evaluating postural control. As COP measurements are highly irregular and non-stationary, non-linear deterministic methods, such as entropy, are more appropriate for the analysis of COP displacement. The aim of our study was to investigate whether the longitudinal effects of biathlon training can elicit specific changes in postural control. Eight national-lev

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Sun, Weikang, Yanfei Liu, and Yanfeng Peng. "Generalized Multivariate Symplectic Sparsest United Decomposition for Rolling Bearing Fault Diagnosis." Electronics 14, no. 3 (2025): 592. https://doi.org/10.3390/electronics14030592.

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The non-stationary characteristics of the vibration signals of rolling bearings will be aggravated under variable speed conditions. Meanwhile, multichannel signals can provide a more comprehensive characterization of state information, providing multiple sources of information that facilitate information fusion and enhancement. However, traditional adaptive signal decomposition methods generally assume that the frequency information is constant and stationary, and it is difficult to achieve a unified decomposition when dealing with multichannel time-varying signals. Therefore, the intention of

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CHANG, CHIA-CHI, HUNG-YI HSU, and TZU-CHIEN HSIAO. "QUANTITATIVE NON-STATIONARY ASSESSMENT OF CEREBRAL HEMODYNAMICS BY EMPIRICAL MODE DECOMPOSITION OF CEREBRAL DOPPLER FLOW VELOCITY." Advances in Adaptive Data Analysis 05, no. 01 (2013): 1350002. http://dx.doi.org/10.1142/s1793536913500027.

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Dynamic regulation of cerebral circulation involves complex interaction between cardiovascular, respiratory, and autonomic nervous systems. Evaluating cerebral hemodynamics by using traditional statistic- and linear-based methods would underestimate or miss important information. Complementary ensemble empirical mode decomposition (CEEMD) has great capability of adaptive feature extraction from non-linear and non-stationary data without distortion. This study applied CEEMD for assessment of cerebral hemodynamics in response to physiologic challenges including paced 6-cycle breathing, hypervent

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Grant, Richard H., and Rex A. Omonode. "Estimation of nocturnal CO<sub>2</sub> and N<sub>2</sub>O soil emissions from changes in surface boundary layer mass storage." Atmospheric Measurement Techniques 11, no. 4 (2018): 2119–33. http://dx.doi.org/10.5194/amt-11-2119-2018.

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Abstract. Annual budgets of greenhouse and other trace gases require knowledge of the emissions throughout the year. Unfortunately, emissions into the surface boundary layer during stable, calm nocturnal periods are not measurable using most micrometeorological methods due to non-stationarity and uncoupled flow. However, during nocturnal periods with very light winds, carbon dioxide (CO2) and nitrous oxide (N2O) frequently accumulate near the surface and this mass accumulation can be used to determine emissions. Gas concentrations were measured at four heights (one within and three above canop

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Cao, Haitao, Erdi Apatay, Garvie Crane, Boming Wu, Ke Gao, and Roohollah Askari. "Evaluation of Various Data Acquisition Scenarios for the Retrieval of Seismic Body Waves from Ambient Noise Seismic Interferometry Technique via Numerical Modeling." Geosciences 12, no. 7 (2022): 270. http://dx.doi.org/10.3390/geosciences12070270.

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Seismic interferometry is often proposed as a cost-efficient technique for reservoir monitoring including CO2 sequestration due to its low cost and environmental advantages over active source imaging. Although many studies have demonstrated the ability of seismic interferometry to retrieve surface waves, body wave imaging remains challenging due to their generally lower amplitudes of body waves in seismic interferometry data. An optimum data acquisition strategy can help retrieve low amplitude body waves better, however, rare attempts have been made to evaluate various data acquisition strateg

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Chоvniuk, Yuriy, Petro Cherednichenko, Anna Moskvitina, and Luydmula Zolotar. "INNOVATIVE METHOD FOR STUDYING THE DYNAMICS OF POLLUTION AND HUMIDITY CHANGES IN SPORTS FACILITIES: FITNESS ROOMS AND SWIMMING POOLS." Urban development and spatial planning, no. 83 (April 14, 2023): 374–85. http://dx.doi.org/10.32347/2076-815x.2023.83.374-385.

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It is necessary to take into account the reaction time of the system to changes and provide for changes in parameters when using modern automation systems and indoor microclimate control with a dynamic change in the intake of harmful substances. The change in carbon dioxide (CO2) pollution and air humidity in sports facilities, such as fitness rooms and swimming pools, is a non-stationary random process with a complex type of non-stationarity and can be described by statistical characteristics. Obtaining these statistical characteristics is complicated by the probabilistic nature of the whole

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Scarpioni, Federico, Michael Warnecke, Hermann Pleteit, Sascha Stallmann, and Fabio La Mantia. "Dynamic Electrochemical Impedance Spectroscopy for Characterization of the State of Health of Graphite Electrodes." ECS Meeting Abstracts MA2023-02, no. 2 (2023): 414. http://dx.doi.org/10.1149/ma2023-022414mtgabs.

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Graphitic carbon is the most used material as anode in lithium-ion batteries since the last 30 years. To make batteries cost-effective for mobility or stationary applications the optimization of every aspect is crucial. Advanced techniques can be implied to undercover or demonstrate the main chemical processes at the graphite electrode such as the Electrochemical Impedance Spectroscopy (EIS). EIS is a powerful technique able to reveal and separate resistive and capacitive properties of an interface in a non-destructive way. It has been applied for the characterization of graphite in order to q

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Zong, Xiaofen, Kai Wu, Lei Li, et al. "Striatum-related spontaneous coactivation patterns predict treatment response on positive symptoms of drug-naive first-episode schizophrenia with risperidone monotherapy." Frontiers in Psychiatry 14 (March 15, 2023). http://dx.doi.org/10.3389/fpsyt.2023.1093030.

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BackgroundEvidence from functional magnetic resonance imaging (fMRI) studies of schizophrenia suggests that interindividual variation in the stationary striatal functional circuit may be correlated with antipsychotic treatment response. However, little is known about the role of the dynamic striatum-related network in predicting patients’ clinical improvement. The spontaneous coactivation pattern (CAP) technique has recently been found to be important for elucidating the non-stationary nature of functional brain networks.MethodsForty-two drug-naive first-episode schizophrenia patients underwen

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Conference papers on the topic "Non-stationary COP signal"

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Lobos, T. "Time-frequency analysis of non-stationary signals in power systems." In Eighth IEE International Conference on Developments in Power System Protection. IEE, 2004. http://dx.doi.org/10.1049/cp:20040065.

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Liu, Yuhan, Shuai Yao, and Yuxuan Jiang. "An Adaptive Compact Kernel TFD Analysis Based on Parameters Pre-estimation for the Multi-component Non-stationary LFM Signals." In 2021 OES China Ocean Acoustics (COA). IEEE, 2021. http://dx.doi.org/10.1109/coa50123.2021.9519991.

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Condron, J. "Comparison of time-frequency distribution techniques using multi-component non-stationary test signals." In IEE Irish Signals and Systems Conference 2005. IEE, 2005. http://dx.doi.org/10.1049/cp:20050322.

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Vergura, S., G. Siracusano, M. Carpentieri, and G. Finocchio. "A Nonlinear and Non-Stationary Signal Analysis for Accurate Power Quality Monitoring in Smart Grids." In 3rd Renewable Power Generation Conference (RPG 2014). Institution of Engineering and Technology, 2014. http://dx.doi.org/10.1049/cp.2014.0871.

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Schmalhofer, Christoph A., Peter Griebel, and Manfred Aigner. "Influence of Carrier Air Preheating on Autoignition of Inline-Injected Hydrogen-Nitrogen Mixtures in Vitiated Air of High Temperature." In ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gt2017-63249.

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Gas turbines will play a significant role in future power generation systems because they provide peak capacity due to their fast start-up capability and high operational flexibility. However, in order to meet the COP 21 goals, de-carbonization of as turbine fuels is required. Compared to natural gas operation, autoignition and flashback risks in gas turbines operated on hydrogen-rich fuels are higher which has to be taken into account for a proper gas turbine design. From investigations of these phenomena at relevant operating conditions with appropriate measurement techniques, e.g. high-spee

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