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Nonlinear Dynamics Analysis of the Wind Turbine Gear Transmission System Considering Friction Effect
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Effect of Liuzijue on Pulmonary Function of Patients with Ischemic Stroke and Hemiplegia
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Distribution Characteristics and Environmental Response of Diatoms Deposited in Reservoirs in the Source Region of Le'an River
Published 2024-01-01“…At present, the study of heavy metal pollution in the Le'an River Basin should be explored.To fully elucidate the environmental characteristics and change-driven processes of reservoirs in the source region of the Le'an River, this paper employs Qinghua and Shijing reservoirs with different ecological environments and development backgrounds as research objects.Experimental records of diatom species and physicochemical indicators in sedimentary column cores are conducted, and meanwhile combined with modern monitoring data and multivariate statistical methods, environmental characteristics driving factors affecting changes in sedimentary diatom assemblages and sedimentary environment in reservoirs are analyzed.The results show that nutrient levels in the reservoirs gradually increase with the depth to the surface, and the sediment pollution evaluation also reveals the collection process of nutrients.Universal and cleaning indicator species have been replaced by fouling-tolerant and eutrophication indicator species of sedimentary diatoms, with representative species being Achnanthidium minutissima and Navicula minima.The multivariate statistical analysis results show that TP, TN, TP, and TOC are the main driving factors of diatom community structure distribution in Qinghua and Shijing reservoirs respectively (p<0.05).Box plot analysis results of 18 diatom indices reveal that CEE and LOBO indices are screened and show sound evaluation suitability and correlation.The input of exogenous materials into the reservoirs is affected by different anthropogenic practices to drive the succession of the diatom community, with a trend towards eutrophication in both reservoirs.…”
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Analysis of Correlation Between Diatoms in Surface Sediments and Water Quality of Reservoirs in Source Region of Le'anhe River
Published 2022-01-01“…To explore the trophic level and the response of diatoms in surface sediments of reservoirs in the source region of Le'anhe River to the water environment,this paper conducts research on Duanxin Reservoir,Zhanggongshan Reservoir,Zhonglyu Reservoir,Datangwu Reservoir,and Shijing Reservoir in the source region of Le'anhe River.By the trophic level index (TLI),principal component analysis,and redundancy analysis (RDA),the water quality environment and the diatoms in surface sediments are taken as the research object and the research carrier,respectively,and the trophic state of reservoirs and the relationship between diatoms in surface sediments and water quality are qualitatively analyzed.The research results reveal that ① the water quality of Duanxin Reservoir belongs to Class I,i.e.…”
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The evolution of historical forms of chinese theater and integration of visual arts
Published 2025-01-01“…The integration of canonical texts such as "Shijing" into the cultural practices of that time underscores the significance of this art form in shaping society and its worldview. …”
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Decoding the WHO Global Tuberculosis Report 2024: A Critical Analysis of Global and Chinese Key Data
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Distribution Characteristics and Environmental Responses of Benthic Diatoms in Reservoirs in Headstream Area of Le'an River
Published 2022-01-01“…This study aims to investigate the community distribution characteristics of the benthic diatom species in the reservoirs in the headstream area of the Le'an River and the response relationships of those species with environmental factors.For this purpose,the composition and water physicochemical parameters of benthic diatom communities in Datangwu reservoir,Qinghua reservoir,and Shijing reservoir in Wuyuan County were measured in the winter of 2020.Pearson correlation analysis and redundancy analysis were performed to explore the spatial distribution characteristics of benthic diatoms and the abovementioned response relationships.The results show that a total of 73 species,belonging to 24 genera,of diatoms are detected from 11 sampling sites.Specifically,the abundance of the dominant species Cyclotella stelligera is 21.91%,and the Melosira,Cocconeis,and Achnanthes genera are widely distributed.The following observations can be made from the analysis of the distribution characteristics and environmental responses of the diatoms:The relationship between Melosira varians and water eutrophication level is significant;a marked positive correlation is observed between Cyclotella stelligera and COD<sub>Mn</sub>;Cymbella perpusilla and total phosphorus (TP) are negatively correlated.NH<sup>+</sup><sub>4</sub>-N and NO<sup>-</sup><sub>3</sub>-N are significant factors affecting the differences among diatom genera and species,altogether explaining 43.1% of the diatom information.A preliminary determination is made that the structure of the benthic diatom communities in the reservoirs in the headstream area of the Le'an River responds simultaneously to NH<sup>+</sup><sub>4</sub>-N,NO<sup>-</sup><sub>3</sub>-N,COD<sub>Mn</sub>,TP,and other parameters.…”
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Vincristine Regulates C/EBP-β/TGF-β1 to Promote A1 Astrocyte Polarization and Induce Neuropathic Pain
Published 2025-02-01“…Yunfu Chen,1,* Guangling Tang,1,* Jun Lu,1,* Sijie Tang,1 Xinglong Xiong,1 Chao Chen,1 Lijian Pei,2 Jing Shi1 1Department of Anesthesiology, The Affiliated Hospital of Guizhou Medical University, Guizhou, People’s Republic of China; 2Department of Anesthesiology, Peking Union Medical College Hospital, Beijing, People’s Republic of China*These authors contributed equally to this workCorrespondence: Jing Shi, Department of Anesthesiology, The Affiliated Hospital of Guizhou Medical University, Guiyang, People’s Republic of China, Tel +86-18685034016, Email shijing81@gmc.edu.cn Lijian Pei, Department of Anesthesiology, Peking Union Medical College Hospital, Beijing, People’s Republic of China, Email hazelbeijing@vip.163.comBackground: The neuropathic pain side induced by Vincristine severely limit its clinical application. …”
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