Zobrazeno 1 - 10
of 629
pro vyhledávání: '"LI Li-jun"'
Publikováno v:
Yankuang ceshi, Vol 41, Iss 1, Pp 22-31 (2022)
BACKGROUND As an important aluminosilicate, trace element contents affect the performance of the product. The kaolin standard substances GBW03121, GBW03122, GBW03122a lack the recommended values of ten elements such as arsenic and antimony. Similar r
Externí odkaz:
https://doaj.org/article/055ae492ac8f42aca170a9fa2f3f23be
Publikováno v:
Yankuang ceshi, Vol 40, Iss 6, Pp 930-943 (2021)
BACKGROUND As important industrial chemicals, intermediates and organic solvents, volatile organic compounds (VOCs) have increased the impact on the environment and human health with the development of human industry and agriculture. As a densely pop
Externí odkaz:
https://doaj.org/article/510dd7ac735e47faab4c8c8bee9a1024
Publikováno v:
Yankuang ceshi, Vol 40, Iss 6, Pp 944-953 (2021)
BACKGROUND At present, the supervision of antibiotic abuse and its research is being strengthened. In recent years, antibiotics have been detected in varying degrees in water in central China. This reinforces the concern of the pollution of antibioti
Externí odkaz:
https://doaj.org/article/8840f41f1c024f6781a563b0795b2d2b
Publikováno v:
Cailiao gongcheng, Vol 49, Iss 9, Pp 158-166 (2021)
A mesoporous material of Fe-Zr(P) was synthesized by modifying the bimetallic material of Fe-Zr with polyether P123. Then, TEPA(n)/Fe-Zr(P) was prepared by modifying Fe-Zr(P) with tetraethylenepentamine (TEPA). X-ray diffraction, infrared spectroscop
Externí odkaz:
https://doaj.org/article/ed0701bdb71742879063b1f3d080c738
Publikováno v:
Cailiao gongcheng, Vol 48, Iss 9, Pp 152-157 (2020)
In order to obtain the curing reaction temperature parameters of E-glass fiber/epoxy resin prepreg, DSC was carried out. Kissinger and Crane equations were used to obtain the phenomenological nth-order reaction curing kinetic parameters of the prepre
Externí odkaz:
https://doaj.org/article/b6f803afb5504e28b682bc268fc4d83c
Publikováno v:
Cailiao gongcheng, Vol 47, Iss 6, Pp 82-87 (2019)
Tin oxide nanowires were successful prepared using thermal evaporation method. The crystal structure and surface morphology of the nanowires were characterized by X-ray diffraction, scanning electron microscope and transmission electron microscope. T
Externí odkaz:
https://doaj.org/article/0258eb23799f4eb985e63b734f9a71c9
Publikováno v:
Yankuang ceshi, Vol 35, Iss 4, Pp 378-383 (2016)
Due to the low concentrations of cadmium and tin in lead alloys and the single element analysis performed by using the national standard method, the analytical protocol is very complex and the detection limit is not ideal. In this paper, a new analyt
Externí odkaz:
https://doaj.org/article/b336f7a211314443940b300ba5ce7a82
Autor:
Li Li-jun, Shi Yi-fei
Publikováno v:
E3S Web of Conferences, Vol 131, p 01087 (2019)
The progress of the Belt and Road Initiative (BRI) has not only created an unprecedented opportunity for the export of China’s agricultural products but also resulted in the opportunity to promote the Global Good Agricultural Practices (GlobalGAP)
Externí odkaz:
https://doaj.org/article/af7bfe523b3d42babf393875a63a58cc
Publikováno v:
In Journal of Magnetism and Magnetic Materials 15 June 2024 600
Autor:
Liang, Zhao-ming, Li, Li-jun
Publikováno v:
In Atmospheric Research 15 June 2024 303