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22 results on '"Zhao Yuan"'

3. The study of the separation and deposition of dredging soil slurry under physical disturbance

Author

Yan-zhao Yuan

Subjects
Multidisciplinary
Abstract

Most existing research uses experimental designs for testing, which cannot efficiently analyse the migration and sorting rules of particles in the disturbed slurry. Therefore, based on the fluidized bed flow film theory, a slurry flow film structure system is established according to the disturbance state of the fluid. On this basis, the particle size and distribution law of the disturbing force formed by slurry disturbance are analyzed, and the calculation model of single particle lift in the flowing film is also analyzed. On this basis, using Markov probability model, the probability of particle lifting and sorting between layers is theoretically deduced. Then, according to the particle ratio of the original mud, the settlement gradation of the particles in the disturbance is analyzed. It can also predict the separation degree of particle in natural turbulence, fluidized beds, and sludge mechanical dewatering. Finally, according to the particle flow software PFC (Particle Flow Code), the main influencing parameters (disturbing force and gradation) were verified and analyzed. The results show that the particle flow simulation results are in good agreement with the calculation results. The model of slurry membrane separation proposed in this paper can provide a basis for studying the mechanism of slurry disturbance separation and particle deposition.

Published
2023

5. Hematological and biochemical parameters for Chinese rhesus macaque

Author

Yu, Wenhai, primary, Hao, Xianhui, additional, Yang, Fengmei, additional, Ma, Jin, additional, Zhao, Yuan, additional, Li, Yanyan, additional, Wang, Junbin, additional, Xu, Hongjie, additional, Chen, Lixiong, additional, Liu, Quan, additional, Duan, Suqin, additional, Yang, Yaping, additional, Huang, Fen, additional, and He, Zhanlong, additional

Published
2019
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21. Regulation of Action Potential Waveforms by Axonal GABAA Receptors in Cortical Pyramidal Neurons.

Author

Xia, Yang, Zhao, Yuan, Yang, Mingpo, Zeng, Shaoqun, and Shu, Yousheng

Subjects
*NEURONS, *AXONAL transport, *ION channels, *GABA, *GENE expression, *IONTOPHORESIS
Abstract

GABAA receptors distributed in somatodendritic compartments play critical roles in regulating neuronal activities, including spike timing and firing pattern; however, the properties and functions of GABAA receptors at the axon are still poorly understood. By recording from the cut end (bleb) of the main axon trunk of layer –5 pyramidal neurons in prefrontal cortical slices, we found that currents evoked by GABA iontophoresis could be blocked by picrotoxin, indicating the expression of GABAA receptors in axons. Stationary noise analysis revealed that single-channel properties of axonal GABAA receptors were similar to those of somatic receptors. Perforated patch recording with gramicidin revealed that the reversal potential of the GABA response was more negative than the resting membrane potential at the axon trunk, suggesting that GABA may hyperpolarize the axonal membrane potential. Further experiments demonstrated that the activation of axonal GABAA receptors regulated the amplitude and duration of action potentials (APs) and decreased the AP-induced Ca2+ transients at the axon. Together, our results indicate that the waveform of axonal APs and the downstream Ca2+ signals are modulated by axonal GABAA receptors. [ABSTRACT FROM AUTHOR]

Published
2014
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