Biomedical subjects

Jinghua Xiao

Publications and source records attributed to Jinghua Xiao.

6 recordsLinked to original sources

PubMed2006

Self-organization of chaos synchronization and pattern formation in coupled chaotic oscillators.

Pattern formation in spatiotemporal chaotic systems is investigated. Temporally chaotic and spatially ordered patterns are observed by varying the coupling strength. Spatial orderings emerge spontaneously due to self-organization of partial and nonlocal chaos synchronization, governed by various types of spatial symmetries. The first and secondary bifurcations from spatially disordered chaos to chaos with different levels of spatial orderings are observed and the scaling behaviors associated with these bifurcations are statistically analyzed.

Journal Article↗

PubMed2006

Antiphase synchronization in coupled chaotic oscillators.

Anti-phase synchronization (AS) in coupled chaotic oscillators is investigated. The necessary condition for AS is given and the stability of AS is studied. Results are demonstrated with numerical simulations and electronic circuits.

Journal Article↗

PubMed2006

Expanded thermodynamic model for microbial true yield prediction.

Thermodynamic methods to predict true yield and stoichiometry of bacterial reactions have been widely used in biotechnology and environmental engineering. However, yield predictions are often inaccurate for certain simple organic compounds. This work evaluates an existing method and identifies the cause of prediction errors for compounds with low degree of reductance of carbon. For these compounds, carbon, not energy or reducing equivalents, constrains growth. Existing thermodynamically-based models do not account for the potential of carbon-limited growth. The improved method described here consists of four balances: carbon balance, nitrogen balance, electron balance, and energy balance. Two efficiency terms, K1 and K2 are defined and estimated from a priori analysis. The results show that K1 and K2 are nearly the same in value so that only one coefficient, K = 0.41 is used in the modified model. Comparisons with observed yields show that use of the new model and parameters results in significantly improved yield estimation based on inclusion of the carbon balance. The average estimation error is less than 6% for the data set presented.

Bacteria↗

PubMed2005

Partial amplitude death in coupled chaotic oscillators.

We have investigated the dynamics of the coupled Lorenz oscillators numerically and theoretically. We find the partial amplitude death when the interaction is strong enough. The linear stability analysis of the partial amplitude death is proposed.

Journal Article↗

PubMed2004

Synchronization in coupled chaotic oscillators with a no-flux boundary condition.

We investigate the synchronization of coupled chaotic oscillators with a no-flux boundary condition. We find that the spectrum of the coupling matrix is divided into two parts, the isolated part with a zero eigenvalue and the continuous one with the other N-1 eigenvalues falling onto a line. Based on the eigenvalue analysis, the stability of the synchronization in a coupled Lorenz system is explored thoroughly in the parameter space of the size of the system, the diffusion, and gradient coupling constants.

Journal Article↗

PubMed2003

[Experimental study on the treatment of organic wastewater containing chlorobenzene by using an EGSB reactor].

In this paper, the study on the inhibition and recovery of the methanogenic activity of the granular sludge which uncontacted and contacted with chlorobenzene caused by chlorobenzene, and the study of the treatment of organic wastewater containing chlorobenzene by using an EGSB reactor were conducted. The results showed that the activity of the granular sludge which had not contacted with chlorobenzene would be inhibited by different concentrations chlorobenzene; but for the granular sludge which had contacted with chlorobenzene, its activity would be inhibited only by higher concentration (100 mg/L) chlorobenzene. Using EGSB reactor to treat organic wastewater containing chlorobenzene, when the influent chlorobenzene concentration was about 10-50 mg/L, the effluent concentration was lower than 7 mg/L before 65 days, but after the 66th day, the effluent concentration suddenly reached above 25 mg/L, and after stopping adding chlorobenzene, the effluent chlorobenzene concentration was between 3.4-38.32 mg/L, this showed that the high chlorobenzene removal efficiency was mainly due to the strong adsorption by granular sludge, and the biological degradation of chlorobenzene was not obvious.

Biodegradation, Environmental↗