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11. Antisaturation Backstepping Control for Quadrotor Slung Load System With Fixed-Time Prescribed Performance

Author

Peng, Xiuhui, Zhang, Zuoming, Zhang, Ancai, and Yuen, Ka-Veng

Abstract

This article addresses the prescribed performance tracking control problem for the quadrotor slung load system under input saturation and partial-state constraints. First, based on the method of barrier Lyapunov function, load position and linear velocity are constrained in the specified regions. Then, the fixed-time prescribed performance control is introduced to the load attitude loop to confine the swing magnitude of the cable and simultaneously pledge the faster convergence speed. In addition, the hyperbolic tangent functions and the auxiliary systems are incorporated to alleviate the saturation nonlinearity effect. In virtue of the Lyapunov stability approach, all signals of the entire system are uniformly ultimately bounded and the constrained states remain within the specific performance boundaries. Finally, numerical simulation results attest to the effectiveness of the proposed backstepping control scheme.

Published
2024
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12. Health State Assessment of Lithium-Ion Batteries Based on Multi-Health Feature Fusion and Improved Informer Modeling.

Author

He, Jun, Liu, Xinyu, Huang, Wentao, Zhang, Bohan, Zhang, Zuoming, Shao, Zirui, and Mao, Zimu

Subjects
LITHIUM-ion batteries, INFORMERS, FEATURE extraction, LITHIUM cells, ROOT-mean-squares, STATISTICAL correlation, ELECTRIC charge
Abstract

Accurately assessing the state of health (SOH) of lithium batteries is of great significance for improving battery safety performance. However, the current assessment for SOH suffers from the difficulty of selecting health features and the lack of uncertainty using data-driven methods. To this end, this paper proposes a health state assessment method for lithium-ion batteries based on health feature extraction and an improved Informer model. First, multiple features that can reflect the SOH of lithium-ion batteries were extracted from the charging and discharging time, the peak value of incremental capacity curve (ICC), and the inflection point value of differential voltage curve, etc., and the correlation between multiple health features and the health state was evaluated by gray correlation analysis. Then, an improved Informer model is proposed to establish a health state estimation method for lithium-ion batteries. Finally, the proposed algorithm is tested and validated using publicly available battery charge/discharge datasets and compared with other algorithms. The results show that the method in this paper can realize high-precision SOH prediction with a root-mean-square error (RMSE) of 0.011, and the model fit reaches more than 98%. [ABSTRACT FROM AUTHOR]

Published
2024
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20. The Temporal Topography of Central Serous Chorioretinopathy in the Chinchilla Rabbits Induced by Intravenous Injection of Adrenaline: An in vivo Study

Author

Yan,Weiming, Long,Pan, Zhang,Lei, Chen,Meizhu, Zhang,Zuoming, Chen,Tao, Yan,Weiming, Long,Pan, Zhang,Lei, Chen,Meizhu, Zhang,Zuoming, and Chen,Tao

Abstract

Weiming Yan1,2 *, Pan Long3 *, Lei Zhang4 *, Meizhu Chen,1 Zuoming Zhang,2 Tao Chen2 1Department of Ophthalmology, The 900th Hospital of Joint Logistic Support Force, PLA (Clinical Medical College of Fujian Medical University, Dongfang Hospital Affiliated to Xiamen University), Fuzhou, People’s Republic of China; 2Department of Clinical Aerospace Medicine, The Air Force Medical University, Xi’an, People’s Republic of China; 3Department of Ophthalmology, The General Hospital of Western Theatre Command, PLA, Chengdu, People’s Republic of China; 4Department of Ophthalmology, The Shaanxi Eye Hospital, Xi’an People’s Hospital (Xi’an Fourth Hospital), Affiliated Guangren Hospital, School of Medicine, Xi’an Jiaotong University, Xi’an, People’s Republic of China*These authors contributed equally to this workCorrespondence: Meizhu Chen, Email jumychen@126.com Tao Chen Email baiidtf0506@126.comPurpose: To explore the temporal topography of the chorioretinopathy in an animal model of central serous chorioretinopathy (CSC) induced by intravenous injection of adrenalin in the Chinchilla rabbits.Methods: Ten Chinchilla rabbits received a daily intravenous injection of adrenaline at 0.04 mg/kg for 8 weeks. Fluorescence fundus angiography (FFA) and electroretinogram (ERG) were performed every week afterwards to see whether there was fluorescence leakage in the fundus and to evaluate the retinal function. Indocyanine green angiography (ICGA) and optical coherence tomography (OCT) were also conducted to detect the change of choroidal vessels. Finally, the eyes of the rabbits were enucleated to make the retinal sections for histological examination with hematoxylin–eosin (HE) staining.Results: Within 8 weeks of the adrenalin administration, 7 out of the 10 rabbits showed different degrees of fluorescence leakage on FFA. The leakage was more obvious during 2– 3 weeks after the adrenalin administration. With the progress of disease

Published
2022

21. Additional file 1 of Transcriptomic comparison sheds new light on regulatory networks for dimorphic flower development in response to photoperiod in Viola prionantha

Author

Li, Qiaoxia, Li, Kunpeng, Zhang, Zhengrong, Li, Jigang, Wang, Bo, Zhang, Zuoming, Zhu, Yuanyuan, Pan, Chaochao, Sun, Kun, and He, Chaoying

Subjects
Data_FILES, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING
Abstract

Additional file 1: Supplementary Figures. (Figures S1–S11 in one PDF file)

Published
2022
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28. Expression of calcitonin gene-related peptide in efferent vestibular system and vestibular nucleus in rats with motion sickness.

Author

Wang Xiaocheng, Shi Zhaohui, Xue Junhui, Zhang Lei, Feng Lining, and Zhang Zuoming

Subjects
Medicine, Science
Abstract

UNLABELLED: Motion sickness presents a challenge due to its high incidence and unknown pathogenesis although it is a known fact that a functioning vestibular system is essential for the perception of motion sickness. Recent studies show that the efferent vestibular neurons contain calcitonin gene-related peptide (CGRP). It is a possibility that the CGRP immunoreactivity (CGRPi) fibers of the efferent vestibular system modulate primary afferent input into the central nervous system; thus, making it likely that CGRP plays a key role in motion sickness. To elucidate the relationship between motion sickness and CGRP, the effects of CGRP on the vestibular efferent nucleus and the vestibular nucleus were investigated in rats with motion sickness. METHODS: An animal model of motion sickness was created by subjecting rats to rotary stimulation for 30 minutes via a trapezoidal stimulation pattern. The number of CGRPi neurons in the vestibular efferent nucleus at the level of the facial nerve genu and the expression level of CGRPi in the vestibular nucleus of rats were measured. Using the ABC method of immunohistochemistry technique, measurements were taken before and after rotary stimulation. The effects of anisodamine on the expression of CGRP in the vestibular efferent nucleus and the vestibular nucleus of rats with motion sickness were also investigated. RESULTS AND DISCUSSION: Both the number of CGRPi neurons in the vestibular efferent nucleus and expression level in the vestibular nucleus increased significantly in rats with motion sickness compared to that of controls. The increase of CGRP expression in rats subjected to rotary stimulation 3 times was greater than those having only one-time stimulation. Administration of anisodamine decreased the expression of CGRP within the vestibular efferent nucleus and the vestibular nucleus in rats subjected to rotary stimulation. In conclusion, CGRP possibly plays a role in motion sickness and its mechanism merits further investigation.

Published
2012
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35. Uncovering the CO2emissions of vehicles: A well-to-wheel approach

Author

Zhang, Zuoming, Su, Hongyang, Yao, Wenbin, Wang, Fujian, Hu, Simon, and Jin, Sheng

Abstract

Carbon dioxide (CO2) from road traffic is a non-negligible part of global greenhouse gas (GHG) emissions, and it is a challenge for the world today to accurately estimate road traffic CO2emissions and formulate effective emission reduction policies. Current emission inventories for vehicles have either low-resolution, or limited coverage, and they have not adequately focused on the CO2emission produced by new energy vehicles (NEV) considering fuel life cycle. To fill the research gap, this paper proposed a framework of a high-resolution well-to-wheel (WTW) CO2emission estimation for a full sample of vehicles and revealed the unique CO2emission characteristics of different categories of vehicles combined with vehicle behavior. Based on this, the spatiotemporal characteristics and influencing factors of CO2emissions were analyzed with the geographical and temporal weighted regression (GTWR) model. Finally, the CO2emissions of vehicles under different scenarios are simulated to support the formulation of emission reduction policies. The results show that the distribution of vehicle CO2emissions shows obvious heterogeneity in time, space, and vehicle category. By simply adjusting the existing NEV promotion policy, the emission reduction effect can be improved by 6.5%–13.5% under the same NEV penetration. If combined with changes in power generation structure, it can further release the emission reduction potential of NEVs, which can reduce the current CO2emissions by 78.1% in the optimal scenario.

Published
2024
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40. Multiple gene-specific DNA methylation in blood leukocytes and colorectal cancer risk: a case-control study in China

Author

Liu, Yupeng, primary, Wang, Yibaina, additional, Hu, Fulan, additional, Sun, Hongru, additional, Zhang, Zuoming, additional, Wang, Xuan, additional, Luo, Xiang, additional, Zhu, Lin, additional, Huang, Rong, additional, Li, Yan, additional, Li, Guangxiao, additional, Li, Xia, additional, Lin, Shangqun, additional, Wang, Fan, additional, Liu, Yanhong, additional, Rong, Jiesheng, additional, Yuan, Huiping, additional, and Zhao, Yashuang, additional

Published
2017
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44. A Natural Occurring Mouse Model with <bold>Adgrv1</bold> Mutation of Usher Syndrome 2C and Characterization of its Recombinant Inbred Strains.

Author

Yan, Weiming, Long, Pan, Chen, Tao, Liu, Wei, Yao, Lu, Ren, Ze, Li, Xiangqian, Wang, Jiancong, Xue, Junhui, Tao, Ye, Zhang, Lei, and Zhang, Zuoming

Subjects
USHER'S syndrome, POLYMERASE chain reaction, LABORATORY mice, RETINITIS pigmentosa, HAIR cells
Abstract

Background/Aims: Our laboratory discovered a Kunming mouse with enormous electroretinogram (ERG) defects. Its auditory brainstem response (ABR) threshold was significantly elevated and closely resembled the features of Usher syndrome (USH). This study sought to cross these USH-like mice (named KMush/ush mice) with CBA/CaJ mice to establish recombinant inbred strains and identify their phenotypes and genotypes. Methods: KMush/ush mice were crossed with CBA/CaJ mice to establish inbred strains by sibling mating. ERG, ABR, ocular fundus morphology, histological examinations of the retina and inner ear, quantitative real-time polymerase chain reaction, western blotting, and exon sequencing were performed to assess the phenotypes and genotypes of the offspring strains. Results: The F1 hybrids from crossing KMush/ush and CBA/CaJ mice had normal ERG and ABR responses. The F2 offspring from intercrossing the F1 mice showed a segregation of the retinitis pigmentosa (RP) and hearing loss phenotypes. The CBA-1ush/ush mice had an RP phenotype that was characterized by a vanished ERG waveform and loss of the outer nuclear layer. Their Pde6b gene had a nonsense mutation that resulted in the failure of protein production in western blotting. However, the ABR threshold of this strain of mice was normal. The CBA-2ush/ush mice had normal retinal function and architecture. Their ABR threshold was increased, with a dramatic degeneration of the stereocilia bundles in the outer hair cells of the inner ear. Whole exome sequencing and exon sequencing revealed a deletion of one base pair in exon 31 of the Adgrv1 gene, which would result in the premature termination of protein encoding. The level of Adgrv1 mRNA was reduced in the CBA-2ush/ush mice. The CBA-3ush/ush mice had phenotypes of RP, elevated ABR threshold, and degeneration of the stereocilia bundles in the outer hair cells. They were closely associated with the nonsense mutations of Pde6b and Adgrv1, respectively. Conclusion: We isolated a mouse strain with hearing loss from inbred mice with retinal degeneration and established it as a recombinant inbred strain with a spontaneous mutation in Adgrv1, the human Usher syndrome 2C gene. The retinal degeneration was cause by a mutation in Pde6b, while the hearing loss was caused by a mutation in Adgrv1. [ABSTRACT FROM AUTHOR]

Published
2018
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