Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Jun-Xiang Cheng"'
Publikováno v:
Medicine; 8/9/2024, Vol. 103 Issue 32, p1-6, 6p
Autor:
Yang Han, Tao Hou, Zi-Hui Zhang, Yun-Hui Zhu, Jun-Xiang Cheng, Han Zhou, Ji-Xia Wang, Jia-Tao Feng, Yan-Fang Liu, Zhi-Mou Guo, Xin-Miao Liang
Publikováno v:
Phytochemistry. 199
Eleven undescribed isoquinoline alkaloids corybungines A-K including a protoberberine-type alkaloid, an isoquinoline alkaloid with a unique 6-norprotoberberine skeleton, one 13,14-seco-protoberberine-type alkaloid, two 1a,14-seco-protoberberine-type
Autor:
Yang, Han, Tao, Hou, Zi-Hui, Zhang, Yao-Dong, Wang, Jun-Xiang, Cheng, Han, Zhou, Ji-Xia, Wang, Jia-Tao, Feng, Yan-Fang, Liu, Zhi-Mou, Guo, Xin-Miao, Liang
Publikováno v:
Fitoterapia. 159:105175
Four new isoquinoline alkaloids including a benzophenanthridine alkaloid (1), a morphine derivative (2), a narceine-type alkaloid (3) and a simple isoquinoline alkaloid (4), a new amide alkaloid (5) and a new phthalic acid derivative (6), together wi
Autor:
Jun-Xiang Cheng, Chao-Ping Chen
Publikováno v:
Journal of Number Theory. 144:105-110
The Glaisher–Kinkelin constant A = 1.28242712 … is defined as the limit of the sequence A n = n − n 2 / 2 − n / 2 − 1 / 12 e n 2 / 4 ∏ k = 1 n k k . Choi and Srivastava introduced two mathematical constants B and C (analogous to the Glais
Autor:
Jun-Xiang Cheng, Chao-Ping Chen
Publikováno v:
The Ramanujan Journal. 38:123-128
In this paper, we provide a recurrence relation for determining the coefficients of Ramanujan’s asymptotic expansion for the \(n\)th harmonic number.
Autor:
Jun-Xiang Cheng, Feng Qi
Publikováno v:
Analysis Mathematica. 29:219-226
A b s t r a c t . Using some basic properties of the extended mean values and the generalized weighted mean values, an integral expression of the function (b x −a x )/x ,a nd analytic techniques, some new Steffensen pairs are established.
Publikováno v:
New Developments in Dam Engineering: Proceedings of the 4th International Conference on Dam Engineering, 18-20 October, Nanjing, China
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9ff0e76d309a856b4d380893afd3ac6
https://doi.org/10.1201/9780203020678.ch120
https://doi.org/10.1201/9780203020678.ch120
Autor:
Feng Qi, Jun-Xiang Cheng
Publikováno v:
Analysis Mathematica; Sep2003, Vol. 29 Issue 3, p219-226, 8p