Ifferent cities. Study Zone Beijing Taihu Lanzhou Spring 23 7 2 Summer 13 three 5 Autumn 24 13 23 Winter 35 16 205. Conclusions This study employed two years of EBC concentration measurements at seven wavelengths in an urban region in Xuzhou, China. We discovered that the EBC Abarelix Biological Activity concentrations in Xuzhou Oxyfluorfen Purity throughout the heating season had been considerably larger than these throughout the nonheating season, as well as the brown carbon content material through the heating season was higher than that through the nonheating season. In terms of the source of EBC, our study shows that the source throughout the heating season is primarily coal and biomass applied for heating. The sources of aerosols during the nonheating season mainly consist of petroleum as well as other liquid sources utilised for transportation. Throughout the period of high EBC concentrations, the heating season was primarily concentrated through the Chinese Spring Festival, and the nonheating season was concentrated in the course of periods of low rainfall. Backward trajectory analysis shows that during the heating season, the vast majority of EBC concentrations are derived from northern and northwestern winds. The outcomes show that the provinces for the north will be the most important supply of EBC in Xuzhou. The prospective supply contribution function (PSCF) model obtains equivalent outcomes because the backward trajectory evaluation. The majority of your heating season pollution comes in the north, plus the sources with the nonheating season are evenly distributed from the region surrounding Xuzhou. As a result, these results indicate that EBC emissions through the heating season in northern China, like those of Xuzhou, are higher and that there’s a risk that pollutants will diffuse into low-concentration locations inside the atmosphere. Though controlling EBC emissions and suppressing pollution sources, focus needs to be given towards the diffusion of pollution sources.Author Contributions: Writing, visualization, formal analysis, G.S.; methodology, W.C.; conceptualization, H.Z.; supervision, S.S.; validation, Y.W. All authors have study and agreed towards the published version of your manuscript. Funding: This analysis was funded by the National Organic Science Foundation of China (grant number 41701391) and Crucial Investigation and Improvement Program of Guangxi (AB18050014). Institutional Review Board Statement: Not applicable. Informed Consent Statement: Not applicable. Information Availability Statement: Information sharing just isn’t applicable. Conflicts of Interest: The authors declare no conflict of interest.
atmosphereArticleEffects of Linewidth Broadening Technique on Recoil of Sodium Laser Guide StarXiangyuan Liu 1,2, , Xianmei Qian 3 , Rui He 1 , Dandan Liu 1 , Chaolong Cui three , Chuanyu Fan 1 and Hao YuanSchool of Electrical and PhotoElectronic Engineering, West Anhui University, Lu’an 237012, China; [email protected] (R.H.); [email protected] (D.L.); [email protected] (C.F.); [email protected] (H.Y.) State Key Laboratory of Pulsed Power Laser Technology, School of Electronic Countermeasures, National University of Defense Technologies, Hefei 230031, China Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China; [email protected] (X.Q.); [email protected] (C.C.) Correspondence: [email protected]; Tel.: +86-Citation: Liu, X.; Qian, X.; He, R.; Liu, D.; Cui, C.; Fan, C.; Yuan, H. Effects of Linewidth Broadening System on Recoil of Sodium Laser Guide Star. Atmosphere 2021, 12, 1315. https://doi.org/10.3390/ atmos12101315 Academic Editors: Nataliya V.