Browsing by Author "Zhang, Renyi"
Now showing items 41-60 of 72
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Lee, Yong Seob (Texas A&M University, 2006-08-16)This dissertation describes the use of measured aerosol size distributions and size-resolved hygroscopic growth to examine the physical and chemical properties of several particle classes. The primary objective of this ...
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Gramann, Jonathan (2014-09-02)This project hypothesizes that changes in climate resulting from urbanization can serve as a proxy for the changes expected from climate change, and therefore, future climate change effects on the biosphere can be estimated ...
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Zhang, Renyi (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2008-05-20)A method and apparatus for conducting mass spectrometry. The mass spectrometry may be accomplished by ion drift-chemical ionization mass spectrometry. One embodiment includes a chemical ionization mass spectrometer comprising ...
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Zhang, Dan (Texas A&M University, 2006-08-16)Soot particles released from fossil fuel combustion and biomass burning have a large impact on the regional/global climate by altering the atmospheric radiative properties and by serving as cloud condensation nuclei (CCN). ...
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Peng, Jianfei; Hu, Min; Guo, Song; Du, Zhuofei; Zheng, Jing; Shang, Dongjie; Levy Zamora, Misti; Zeng, Limin; Shao, Min; Wu, Yu-Sheng; Zheng, Jun; Wang, Yuan; Glen, Crystal R.; Collins, Donald R.; Molina, Mario J.; Zhang, Renyi (Proceedings of the National Academy of Sciences of the United States of America, 2016)
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Kota, Sri Harsha (2010-10-12)Near-road air quality studies have indicated the presence of high levels of pollutants. In this study, a three dimensional Eulerian model is developed which can be used to study the air quality near freeways. A vehicle-induced ...
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Modeling Polycyclic Aromatic Hydrocarbons Emissions and Ambient Concentrations in the United States Zhang, Jie (2015-12-01)PAHs (polycyclic aromatic hydrocarbons) in the environment are of significant concern due to their high toxicity. Although PAHs are monitored in the United States (US) at the air toxics monitoring network stations, ...
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Li, Jingyi (2014-08-01)In this study, the Master Chemical Mechanism (MCM), a near-explicit photochemical mechanism, is, for the first time, implemented into the Community Air Quality Model (CMAQ) model (referred to as CMAQ-MCM hereafter), a 3D ...
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Wu, Li (2015-05-05)Quantitative information on sources and source region contributions to particulate matter (PM) concentration in China is currently poorly understood but is urgently needed to make emission control strategies. In this study, ...
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Lee, Keun-Hee (2012-02-14)The direct and indirect effects of aerosols on the hurricane ‘Katrina’ have been investigated using the WRF model with a two-moment bulk microphysical scheme and modified Goddard shortwave radiation scheme. Simulations of ...
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Gómez Hernández, Mario Estuardo (2015-11-10)This dissertation is aimed at understanding the molecular composition and physical chemistry of secondary organic aerosols (SOA) and, in particular, the processes that lead to their formation and growth. Several analytical ...
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Perkins, Katie C. (2010-10-12)Development of effective pollution control strategies for urban areas requires accurate predictive models. The ability of models to correctly characterize the atmospheric chemistry, meteorology, and deposition rely on ...
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Liu, Mengxiao (2019-05-16)As an analytical technique for structure determination and quantitative analysis, nuclear magnetic resonance (NMR) spectroscopy is widely used to characterize reactions or interactions. However, NMR is not readily applicable ...
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Xu, Wen (2014-04-14)Atmospheric aerosols are fine liquid droplets or solid particles of various chemical compositions suspended in the air. They influence the Earth radiation budget, impact cloud formation, cause or enhance diseases on humans, ...
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Zamora, Misti E Levy (2015-12-08)Atmospheric aerosols are a key contributor to pollution, adversely affect human health, and can alter global climate. Several questions concerning atmospheric aerosols persist, including: ‘Which atmospheric species are ...
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Glen, Crystal (2012-02-14)Secondary organic aerosols (SOA) comprise a substantial fraction of the total global aerosol budget. While laboratory studies involving smog chambers have advanced our understanding of the formation mechanisms responsible ...
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Wang, Gehui; Zhang, Renyi; Gomez, Mario; Yang, Lingxiao; Misti Levy Zamora; Hu, Min; Lin, Yun; Peng, Jianfei; Guo, Song; Meng, Jingjing; Li, Jianjun; Cheng, Chunlei; Hu, Tafeng; Ren, Yanqin; Wang, Yuesi; Gao, Jian; Cao, Junji; An, Zhisheng; Zhou, Weijian; Li, Guohui; Wang, Jiayuan; Tian, Pengfei; Marrero-Ortiz, Wilmarie; Secrest, Jeremiah; Du, Zhuofei; Zheng, Jing; Shang, Dongjie; Zeng, Limin; Shao, Min; Wang, Weigang; Huang, Yao; Wang, Yuan; Zhu, Yujiao; Li, Yixin; Hu, Jiaxi; Pan, Bowen; Cai, Li; Cheng, Yuting; Ji, Yuemeng; Zhang, Fang; Rosenfeld, Daniel; Liss, Peter; Duce, Robert; Kolb, Charles; Molina, Mario (Proceedings of the National Academy of Sciences of the United States of America, 2016)
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Suh, Inseon (Texas A&M University, 2006-08-16)Aromatic hydrocarbons constitute an important fraction (~20%) of total volatile organic compounds (VOCs) in the urban atmosphere. A better understanding of the aromatic oxidation and its association in urban and regional ...
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Hu, Jiaxi (2018-07-06)Hypotheses have been proposed for decades about cloud condensation nuclei (CCN) aerosol effect on delaying the warm rain process, invigorating deep convective cloud vertical development, and enhancing mixed-phase process. ...
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Shi, Yang (2022-07-20)Mineral dust plays an important role in the primary formation of ice crystals in mixed-phase clouds by acting as ice nucleating particles (INPs). It can influence the cloud phase transition and radiative forcing of mixed-phase ...