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Dive into the research topics where Qingwen Zhang is active.

Publication


Featured researches published by Qingwen Zhang.


Journal of Natural Products | 2000

Cernuosides A and B, two sucrase inhibitors from Pulsatilla cernua.

Qingwen Zhang; Wen-Cai Ye; Xianzhong Yan; Guang Zhu; Chun-Tao Che; Shouxun Zhao

Two oleanane-type oligoglycosides, cernuosides A (1) and B (2), were isolated from the roots of Pulsatilla cernua (Ranunculaceae). Structure elucidation was accomplished by 1D and 2D NMR (DQF-COSY, TOCSY, HMQC, HMBC, and ROESY) methods, FABMS, and hydrolysis. Both compounds showed moderate activity against sucrase.


Journal of Bridge Engineering | 2001

Finite-Element Model Updating for the Kap Shui Mun Cable-Stayed Bridge

Qingwen Zhang; Tse-Yung Paul Chang; Chih-Chen Chang


Journal of Bridge Engineering | 2001

AMBIENT VIBRATION OF LONG-SPAN CABLE-STAYED BRIDGE

Chih-Chen Chang; T. Y. P. Chang; Qingwen Zhang


Earthquake Engineering & Structural Dynamics | 2000

Finite element model updating for structures with parametric constraints

Qingwen Zhang; Chih-Chen Chang; T. Y. P. Chang


Journal of Natural Products | 2001

Antisweet Saponins from Gymnema sylvestre

Wen-Cai Ye; Xin Liu; Qingwen Zhang; Chun-Tao Che; Shouxun Zhao


Earthquake Engineering & Structural Dynamics | 2002

Traffic‐induced variability in dynamic properties of cable‐stayed bridge

Qingwen Zhang; Lichu Fan; W. C. Yuan


Chemical & Pharmaceutical Bulletin | 2001

Cycloartane glycosides from Cimicifuga dahurica

Qingwen Zhang; Wen-Cai Ye; Wl Hsiao; Shouxun Zhao; Chun-Tao Che


Planta Medica | 2002

New lupane glycosides from Pulsatilla chinensis.

Wen-Cai Ye; Qingwen Zhang; Wl Hsiao; Shouxun Zhao; Chun-Tao Che


Chemical & Pharmaceutical Bulletin | 2001

Four new oleanane saponins from Anemone anhuiensis.

Wen-Cai Ye; Qingwen Zhang; Shouxun Zhao; Chun-Tao Che


Journal of Natural Products | 1999

Five new triterpene saponins from Pulsatilla patens var. multifida.

Wen-Cai Ye; Guoshi Pan; Qingwen Zhang; Chun-Tao Che; Houming Wu; Shouxun Zhao

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Chun-Tao Che

University of Illinois at Chicago

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Chih-Chen Chang

Hong Kong University of Science and Technology

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Chun-Tao Che

University of Illinois at Chicago

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Wl Hsiao

Hong Kong University of Science and Technology

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Houming Wu

Chinese Academy of Sciences

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Guang Zhu

Hong Kong University of Science and Technology

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T. Y. P. Chang

Hong Kong University of Science and Technology

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