Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Wei-Wei Ling"'
Antiseptic Activity and Phenolic Constituents of the Aerial Parts of Vitex negundo var. cannabifolia
Autor:
Zheng-Zhu Zhang, Xian-Feng Du, Tao Xia, Xiao-Chun Wan, Tie-Jun Ling, Wei-Wei Ling, Yuan-Jun Chen
Publikováno v:
Molecules, Vol 15, Iss 11, Pp 8469-8477 (2010)
Four phenolics, salviaplebeiaside (1), γ-tocopherol (2), chrysosplenol-D (4), and isovitexin (5), along with α-tocoquinone (3) and β-sitosterol (6) were isolated from the aerial parts of Vitex negundo var. cannabifolia. The isolation was performed
Externí odkaz:
https://doaj.org/article/bff8ae27ea884dadaca2591f9eee0c32
Autor:
Wei-Wei LING1, Pin-Xia WU2 pinxiawu@csu.edu.cn
Publikováno v:
Thermal Science. 2021, Vol. 25 Issue 2B, p1249-1254. 6p.
Autor:
Wei-Wei Ling, Pin-Xia Wu
Publikováno v:
Thermal Science, Vol 25, Iss 3 Part B, Pp 2051-2056 (2021)
The Broer-Kaup equation is one of many equations describing some phenomena of shallow water wave. There are many errors in scientific research because of the existence of the non-smooth boundaries. In this paper, we generalize the Broer-Kaup equation
Autor:
Wei-Wei Ling, Pin-Xia Wu
Publikováno v:
Thermal Science, Vol 25, Iss 3 Part B, Pp 2043-2049 (2021)
In this paper, the (2+1)-dimensional asymmetrical Nizhnik-Novikov-Veselov equation is investigated to acquire the complexiton solutions by the Hirota direct method. It is essential to transform the equation into Hirota bi-linear form and to build N-c
Autor:
Pin-Xia Wu, Wei-Wei Ling
Publikováno v:
Thermal Science, Vol 25, Iss 2 Part B, Pp 1249-1254 (2021)
The Whitham-Broer-Kaup equation exists widely in shallow water waves, but unsmooth boundary seriously affects the properties of solitary waves and has certain deviations in scientific research. The aim of this paper is to introduce its modification w
Variational principle of the one-dimensional convection–dispersion equation with fractal derivatives
Publikováno v:
International Journal of Modern Physics B. 35:2150195
The convection–dispersion equation has always been a classic equation for studying pollutant migration models. There are certain deviations in scientific research because of the existence of the impurity of the medium and the nonsmooth boundary. In
Publikováno v:
Symmetry, Vol 13, Iss 1164, p 1164 (2021)
Symmetry
Volume 13
Issue 7
Symmetry
Volume 13
Issue 7
By using differential equations with discontinuous right-hand sides, a dynamic model for vector-borne infectious disease under the discontinuous removal of infected trees was established after understanding the transmission mechanism of Huanglongbing
Publikováno v:
DEStech Transactions on Social Science, Education and Human Science.
The course construction and reform is the key of improving the undergraduate teaching quality and personnel talent cultivation. CDIO is a new personnel talent cultivation model in the current higher engineering education. Based on CDIO concept and th
Autor:
Tie-Jun Ling1 lingtiejun@yahoo.com.cn, Wei-Wei Ling1, Yuan-Jun Chen1, Xiao-Chun Wan1, Tao Xia1, Xian-Feng Du1, Zheng-Zhu Zhang1 zzz@ahau.edu.cn
Publikováno v:
Molecules. Nov2010, Vol. 15 Issue 11, p8469-8477. 9p. 1 Diagram, 2 Charts, 1 Graph.
Publikováno v:
Advanced Materials Research. 721:215-218
Ni-Cu-Zn ferrite (NCZF) /BaTiO3 (BT) composites with different mass ratios of BT/NCZF (x) were prepared at 900°C with suitable fluxing agents. The sintered samples were then annealed in oxygen to reduce the amount of Fe2+ ions. Influence of annealin