Zobrazeno 1 - 10
of 7 795
pro vyhledávání: '"R. Cai"'
Publikováno v:
Journal of Applied Fluid Mechanics, Vol 17, Iss 12, Pp 2608-2622 (2024)
The motion of bubbles near a solid vertical wall and the resulting induced flow field were experimentally investigated using the shadow method and particle image velocimetry (PIV). The study analyzed how bubble generation frequency and initial distan
Externí odkaz:
https://doaj.org/article/72a8391dd45f4ca8b278963d805be767
Autor:
J. Shen, B. Zhao, S. Wang, A. Ning, Y. Li, R. Cai, D. Gao, B. Chu, Y. Gao, M. Shrivastava, J. Jiang, X. Zhang, H. He
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 10261-10278 (2024)
Clustering of gaseous sulfuric acid (SA) enhanced by dimethylamine (DMA) is a major mechanism for new particle formation (NPF) in polluted atmospheres. However, uncertainty remains regarding the SA–DMA nucleation parameterization that reasonably re
Externí odkaz:
https://doaj.org/article/ac5a653c645d4e6baf731c2f6e6c225f
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 4211-4225 (2024)
Aerosol particles undergo continuous changes in their chemical composition and physical properties throughout their lifecycles, leading to diverse climate and health impacts. In particular, organic nanoparticle’s surface equilibrium vapor pressure
Externí odkaz:
https://doaj.org/article/1c147c7283bb46bda8ea1de6911fa436
Autor:
M. Kulmala, D. Aliaga, S. Tuovinen, R. Cai, H. Junninen, C. Yan, F. Bianchi, Y. Cheng, A. Ding, D. R. Worsnop, T. Petäjä, K. Lehtipalo, P. Paasonen, V.-M. Kerminen
Publikováno v:
Aerosol Research, Vol 2, Pp 49-58 (2024)
Atmospheric new particle formation (NPF) and associated production of secondary particulate matter dominate aerosol particle number concentrations and submicron particle mass loadings in many environments globally. Our recent investigations show that
Externí odkaz:
https://doaj.org/article/7882fe12d25043a98cfd28db5ac1779e
Autor:
J. Cai, J. Sulo, Y. Gu, S. Holm, R. Cai, S. Thomas, A. Neuberger, F. Mattsson, M. Paglione, S. Decesari, M. Rinaldi, R. Yin, D. Aliaga, W. Huang, Y. Li, Y. Gramlich, G. Ciarelli, L. Quéléver, N. Sarnela, K. Lehtipalo, N. Zannoni, C. Wu, W. Nie, J. Kangasluoma, C. Mohr, M. Kulmala, Q. Zha, D. Stolzenburg, F. Bianchi
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 2423-2441 (2024)
New particle formation (NPF) is a major source of aerosol particles and cloud condensation nuclei in the troposphere, playing an important role in both air quality and climate. Frequent NPF events have been observed in heavily polluted urban environm
Externí odkaz:
https://doaj.org/article/791010ab1c1c4bdeb2b75b8443370472
Autor:
Y. Zhang, D. Li, X.-C. He, W. Nie, C. Deng, R. Cai, Y. Liu, Y. Guo, C. Liu, Y. Li, L. Chen, C. Hua, T. Liu, Z. Wang, J. Xie, L. Wang, T. Petäjä, F. Bianchi, X. Qi, X. Chi, P. Paasonen, C. Yan, J. Jiang, A. Ding, M. Kulmala
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 1873-1893 (2024)
New particle formation contributes significantly to the number concentration of ultrafine particles (UFPs, d ≤ 100 nm) and has a great impact on human health and global climate. Iodine oxoacids (HIOx, including iodic acid, HIO3, and iodous acid, HI
Externí odkaz:
https://doaj.org/article/ab843652b2d54a518cf0b0324134bf24
Autor:
X. Li, Y. Chen, Y. Li, R. Cai, C. Deng, J. Wu, C. Yan, H. Cheng, Y. Liu, M. Kulmala, J. Hao, J. N. Smith, J. Jiang
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 14801-14812 (2023)
Understanding the composition and sources of atmospheric ultrafine particles (UFPs) is essential in evaluating their exposure risks. It requires long-term measurements with high time resolution, which are scarce to date. We performed near-continuous
Externí odkaz:
https://doaj.org/article/ce7277ead2094e6682c1d080e82a46df
Autor:
Y. Li, J. Shen, B. Zhao, R. Cai, S. Wang, Y. Gao, M. Shrivastava, D. Gao, J. Zheng, M. Kulmala, J. Jiang
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 8789-8804 (2023)
Sulfuric acid (SA) is a governing gaseous precursor for atmospheric new particle formation (NPF), a major source of global ultrafine particles, in environments studied around the world. In polluted urban atmospheres with high condensation sinks (CSs)
Externí odkaz:
https://doaj.org/article/1eafce0682e64dda8a1d65f954141fb9
Autor:
C. Li, Y. Li, X. Li, R. Cai, Y. Fan, X. Qiao, R. Yin, C. Yan, Y. Guo, Y. Liu, J. Zheng, V.-M. Kerminen, M. Kulmala, H. Xiao, J. Jiang
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 6879-6896 (2023)
New particle formation (NPF) and growth are a major source of atmospheric fine particles. In polluted urban environments, NPF events are frequently observed with characteristics distinct from those in clean environments. Here we simulate NPF events i
Externí odkaz:
https://doaj.org/article/ba6bc400ccab4a2baa0cef1c1fc3c76c
Autor:
J. Hong, M. Tang, Q. Wang, N. Ma, S. Zhu, S. Zhang, X. Pan, L. Xie, G. Li, U. Kuhn, C. Yan, J. Tao, Y. Kuang, Y. He, W. Xu, R. Cai, Y. Zhou, Z. Wang, G. Zhou, B. Yuan, Y. Cheng, H. Su
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 5699-5713 (2023)
The high concentration of fine particles and gaseous pollutants makes polluted areas, such as the urban setting of North China Plain (NCP) of China, a different environment for new particle formation (NPF) compared to many clean regions. Such conditi
Externí odkaz:
https://doaj.org/article/8ba60cc9e38f4f5cbe31fcd4a245101a