Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Hong-Qiang Yan"'
Autor:
Ishfaq Ahmad, Pu Guo, Mei-Xia Zhao, Yu Zhong, Xiao-Yun Zheng, Shu-Qi Zhang, Jian-Wen Qiu, Qi Shi, Hong-Qiang Yan, Shi-Chen Tao, Li-Jia Xu
Publikováno v:
Frontiers in Marine Science, Vol 11 (2024)
The coral reefs along Pakistan’s coastline are of ecological and economic significance. However, they are increasingly threatened by anthropogenic threats and climate change. These vulnerable ecosystems are declining due to various factors such as
Externí odkaz:
https://doaj.org/article/3f8cb11369314b2f9f73c64eac9c6c8e
Autor:
Xi-Yang Zhang, Yue Li, Fu-Lin Sun, Fei Tan, Qi Shi, Hong-Qiang Yan, Guan Wang, Hong-Qiang Yang
Publikováno v:
Palaeogeography, Palaeoclimatology, Palaeoecology. 592:110904
Publikováno v:
Chinese Journal of Polymer Science. 32:305-314
A novel intumescent flame retardant coating, consisting of poly(vinylphosphonic acid) (PVPA) as the acid source and branched polyethylenimine (BPEI) as the blowing agent, was constructed on the surface of ramie fabrics by alternate assembly to remark
Publikováno v:
Advanced Materials Research. :1636-1641
To obtain attractive properties, such as increased resistance to moisture absorption, low dielectric constant and low dielectric loss, the novel bismaleimide, viz. 2,7-bis(4-maleimidophenoxy) naphthalene (BMPN), and dicyanate ester, viz. 2,7-dihydrox
Publikováno v:
World Journal of Microbiology and Biotechnology. 24:2783-2787
A novel biopolyester, Medium-Chain-Length Polyhydroxyalkanoates (MCL-PHAs), was made from the corn oil hydrolysate, an inexpensive and renewable carbon source, by a fed-batch culture of Pseudomonas putida with a phosphate limitation. The cell growth,
Publikováno v:
Journal of Polymer Science Part A: Polymer Chemistry. 42:5284-5291
Double metal cyanide complexes based on Zn3[Co(CN)6]2 were prepared in the presence of different complexing agents and used in the copolymerization of carbon dioxide and cyclohexene oxide. The FTIR and 1H NMR spectra of the products verified the form
Publikováno v:
Journal of Applied Polymer Science. 91:3927-3939
The cure behavior of 2,7-dihydroxynaphthalene dicyanate (DNCY) was studied by means of nonisothermal DSC, isothermal DSC, and FTIR. In nonisothermal DSC, the cure kinetics parameters of DNCY were calculated by the Coats–Redfern method and compared
Publikováno v:
Polymer. 44:7861-7867
The novel dicyanate ester resin containing the naphthalene ring (DNCY) was synthesized from 2,7-dihydroxynaphthalene and cyanogen bromide by two-step method. The monomer of DNCY was characterized by FT-IR, 1H NMR, 13C NMR and elemental analyses (EA).
Publikováno v:
Journal of Palaeogeography, Vol 10, Iss 1, Pp 1-12 (2021)
Abstract A comprehensive study on the accretion and diagenesis of the Permian–Triassic boundary microbialites is conducive to a better understanding of the ecological community after the end-Permian mass extinction. Here we studied the special micr
Externí odkaz:
https://doaj.org/article/bff06cfeb08a43e0ba0ba14a7482ea58
Publikováno v:
Ambio. 41(5)
The northern reef of Yongxing Island, the largest reef island of the Xisha Islands in the South China Sea, was in good condition with significant cover of scleractinian corals until 2002. Surveys in 2008 and 2010, however, found that coral coverage h