Publications by authors named "Hua-Jia Chen"
Article Synopsis
- - This study investigates how information geometry can analyze EEG signals simulated by complex models to differentiate between healthy individuals and Alzheimer's patients, focusing on conditions with eyes closed and open.
- - The researchers use information rates to measure the evolution of EEG signal probabilities and causal information rates to assess how one signal influences another, revealing notable differences in neural processing between the two groups.
- - The findings suggest that these new measures outperform traditional information-theoretic methods and could be crucial for understanding brain function and diagnosing neurological disorders like Alzheimer's.
[Association of YKL-40 in bronchoalveolar lavage fluid with airway damage in children with Mycoplasma pneumoniae pneumonia].
Zhongguo Dang Dai Er Ke Za Zhi
December 2019
Article Synopsis
- The study aimed to examine the relationship between YKL-40 levels in bronchoalveolar lavage fluid (BALF) and airway damage in children with Mycoplasma pneumoniae pneumonia (MPP).
- A total of 60 children with MPP were compared to 12 control children, and the MPP group was categorized based on imaging and bronchoscopic findings, observing various symptoms and laboratory results.
- Results indicated that higher levels of YKL-40 in BALF correlate with greater airway damage, particularly in subgroups showing pulmonary consolidation and plastic bronchitis, highlighting its potential role as a biomarker for assessing airway injury in MPP.
Deconvolution of reacting-flow dynamics using proper orthogonal and dynamic mode decompositions.
Phys Rev E Stat Nonlin Soft Matter Phys
January 2015
Analytical and computational studies of reacting flows are extremely challenging due in part to nonlinearities of the underlying system of equations and long-range coupling mediated by heat and pressure fluctuations. However, many dynamical features of the flow can be inferred through low-order models if the flow constituents (e.g.
View Article and Find Full Text PDFDynamical-systems analysis and unstable periodic orbits in reacting flows behind symmetric bluff bodies.
Phys Rev E Stat Nonlin Soft Matter Phys
September 2013
Dynamical systems analysis is performed for reacting flows stabilized behind four symmetric bluff bodies to determine the effects of shape on the nature of flame stability, acoustic coupling, and vortex shedding. The task requires separation of regular, repeatable aspects of the flow from experimental noise and highly irregular, nonrepeatable small-scale structures caused primarily by viscous-mediated energy cascading. The experimental systems are invariant under a reflection, and symmetric vortex shedding is observed throughout the parameter range.
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