Ifferent cities. Study Zone Beijing Taihu Lanzhou Spring 23 7 two Summer 13 three 5 Autumn 24 13 23 Winter 35 16 205. Conclusions This study applied two years of EBC concentration measurements at seven wavelengths in an urban area in Xuzhou, China. We discovered that the EBC concentrations in Xuzhou through the heating season had been considerably higher than these throughout the nonheating season, and the brown carbon content material through the heating season was higher than that through the nonheating season. In terms of the supply of EBC, our study shows that the supply through the heating season is mainly coal and biomass utilized for heating. The sources of Pentoxyverine manufacturer aerosols throughout the nonheating season mainly consist of petroleum and also other liquid sources used for transportation. Through the period of higher EBC concentrations, the heating season was mainly concentrated throughout the Chinese Spring Festival, and also the nonheating season was concentrated through periods of low rainfall. Backward trajectory evaluation shows that through 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 would be the principal supply of EBC in Xuzhou. The potential supply contribution function (PSCF) model obtains comparable final results because the backward trajectory evaluation. The majority on the heating season pollution comes from the north, along with the sources from the nonheating season are evenly distributed in the location surrounding Xuzhou. For that Methyl nicotinate medchemexpress reason, these results indicate that EBC emissions through the heating season in northern China, which includes these of Xuzhou, are high and that there’s a threat that pollutants will diffuse into low-concentration places within the atmosphere. When controlling EBC emissions and suppressing pollution sources, attention needs to be provided towards the diffusion of pollution sources.Author Contributions: Writing, visualization, formal evaluation, G.S.; methodology, W.C.; conceptualization, H.Z.; supervision, S.S.; validation, Y.W. All authors have read and agreed towards the published version of the manuscript. Funding: This investigation was funded by the National Organic Science Foundation of China (grant quantity 41701391) and Essential Investigation and Development System of Guangxi (AB18050014). Institutional Evaluation Board Statement: Not applicable. Informed Consent Statement: Not applicable. Data Availability Statement: Data sharing just isn’t applicable. Conflicts of Interest: The authors declare no conflict of interest.
atmosphereArticleEffects of Linewidth Broadening Strategy on Recoil of Sodium Laser Guide StarXiangyuan Liu 1,two, , Xianmei Qian 3 , Rui He 1 , Dandan Liu 1 , Chaolong Cui 3 , 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 Crucial Laboratory of Pulsed Energy Laser Technologies, School of Electronic Countermeasures, National University of Defense Technology, 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.
