Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Chengnan Ma"'
Autor:
Yonghong Zheng, Zhiguo Zhang, Yongchun Chen, Shikai An, Lei Zhang, Fangling Chen, Chengnan Ma, Weiqing CAi
Publikováno v:
International Journal of Coal Science & Technology, Vol 9, Iss 1, Pp 1-11 (2022)
Abstract Exogenous humus can change the content and migration activity of cadmium (Cd) in soil. Humic acid (HA) is an important soluble humus component in soil. In order to explore the relationship between cadmium pollution mechanism and ecological e
Externí odkaz:
https://doaj.org/article/4876b74abf424a2bb64e77124f3ab353
Autor:
Zhiguo Zhang, Weiqing Cai, Youbiao Hu, Ke Yang, Yonghong Zheng, Chao Fang, Chengnan Ma, Yuning Tan
Publikováno v:
Frontiers in Chemistry, Vol 10 (2022)
In order to promote and broaden the utilization of fly ash as a resource, the fly ash from a 2,660-MW coal-fired power plant in Huainan (China) was investigated. The physical and chemical properties of fly ash were characterized by scanning electron
Externí odkaz:
https://doaj.org/article/37e633fd1b464eef888f2009918656a2
Autor:
Yonghong Zheng, Yating Li, Zhiguo Zhang, Yuning Tan, Weiqing Cai, Chengnan Ma, Fangling Chen, Jiangwei Lu
Publikováno v:
Frontiers in Chemistry, Vol 10 (2022)
The effect of low-molecular-weight organic acids (citric acid and malic acid) on the migration characteristics of Pb in contaminated soils was explored in this study. Reclaimed soil was collected from the coal gangue hill area of the Panyi mine in Hu
Externí odkaz:
https://doaj.org/article/e02aa3f195a048428b7bf74aec68c76b
Autor:
Yonghong Zheng, Jiangwei Lu, Zhiguo Zhang, Yating Li, Yuning Tan, Weiqing Cai, Chengnan Ma, Fangling Chen
Publikováno v:
Toxics, Vol 10, Iss 12, p 798 (2022)
This study investigated the effects of low molecular weight organic acids (citric acid and malic acid) on the migration properties of nickel in soil. A reclaimed soil sample was obtained from the Panyi Mine in Huainan City, China. The effects of addi
Externí odkaz:
https://doaj.org/article/ae184f191fda4a0c8210fb7923304c95
Publikováno v:
Materials, Vol 12, Iss 18, p 2988 (2019)
Copper-based friction material (CFM) and paper-based friction material (PFM) are the two most commonly used clutch friction materials. The friction and wear characteristics of these two kinds of friction materials under dry conditions were investigat
Externí odkaz:
https://doaj.org/article/dec46048be1a4a689a077f0a13e38d27
Autor:
Zhiguo Zhang1, Chengnan Ma1, Youbiao Hu1, Yonghong Zheng1,2,3 zyhaust@aust.edu.cn, Fangling Chen1, Weiqing Cai1, Yongqiang Deng1, Chao Fang1, Zhilin Zhang1
Publikováno v:
Polish Journal of Environmental Studies. 2022, Vol. 31 Issue 2, p1441-1449. 9p.
Autor:
Yonghong Zheng, Zhiguo Zhang, Yongchun Chen, Shikai An, Lei Zhang, Fangling Chen, Chengnan Ma, Weiqing Cai
Publikováno v:
Nature Environment and Pollution Technology. 21:405-412
Organic acids are widespread in the environment and play an important role in the adsorption, desorption, and migration of soil cadmium (Cd). Under the effect of humic acid (HA) and citric acid, the properties and mechanism of Cd adsorption and desor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d896673a101383b7ba8bf026cf7a5a2e
https://doi.org/10.46488/nept.2022.v21i01.048
https://doi.org/10.46488/nept.2022.v21i01.048
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology. 235:544-550
Studies have shown that reinforced paper-based friction material with 600 µm carbon fiber length possesses a high dynamic friction coefficient but is subjected to abrasive wear during sliding contact. This work is devoted to further investigate the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e372dafc91a804d4f43e5b32c9d38d42
https://doi.org/10.1177/1350650120972292
https://doi.org/10.1177/1350650120972292
Publikováno v:
Industrial Lubrication and Tribology. 71:1206-1212
Purpose The purpose of this paper is to study friction and wear properties of three types of steels against paper-based friction disc, including 65Mn, 20#steel and 30CrAl, so as to obtain the appropriate working conditions for different friction mate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b1878deb2c0d4a25d88d1c98043402b
https://doi.org/10.1108/ilt-01-2019-0023
https://doi.org/10.1108/ilt-01-2019-0023
Autor:
Yongchun Chen, Zhang Lei, Chengnan Ma, Zhiguo Zhang, Weiqing Cai, Shikai An, Yonghong Zheng, Chen Fangling
Organic acids are widespread in the environment, where they play an important role in the adsorption, desorption, and migration of Cd in soil. This study evaluated the characteristics and mechanisms of Cd adsorption and desorption in reclaimed soil f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a89a82f4b64147b03cef454fb8f425c9
https://doi.org/10.21203/rs.3.rs-607235/v1
https://doi.org/10.21203/rs.3.rs-607235/v1
