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Article
A study of transverse bowing defect in cold roll-forming asymmetric corrugated channels
The transverse bowing greatly affects the accuracy of the roll-forming asymmetric corrugated channels (ACC). In order to control this defect, the paper first elucidates its mechanism of the production. Then, t...
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Article
Advanced sodium-ion capacitor based on antimony-carbon composite anode
Alloy-type materials with the characteristics of high theoretical capacity, low sodiation/desodiation potential, and good conductivity are considered as one of the most promising anodes for sodium-ion batterie...
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Article
Open AccessCucurbitane-Type Triterpene Glycosides from Momordica charantia and Their α-Glucosidase Inhibitory Activities
Ten cucurbitane-type triterpene glycosides, including five new compounds named charantosides H (1), J (2), K (3), momorcharacoside A (4), goyaglycoside-l (5), and five known compounds (6–10), were isolated from t...
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Article
Microstructure and properties of Al3Zr/2024Al in situ composites after forging
To research the influencing rule of severe plastic deformation on Al matrix in situ composites, 10 wt% Al3Zr/2024Al in situ particle-reinforced composite was prepared by direct melt reaction (DMR), and then, the ...
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Article
Open AccessThree new physalins from Physalis alkekengi var. franchetii
Three new physalin steroids, physalin III (1), physalin IV (2), 3-O-methylphysalin X (3), together with five known physalins (4–8) were isolated from the 80% EtOH extract of calyces of Physalis alkekengi var. fra...
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Article
A new N-containing cucurbitacin from Hemsleya endecaphylla
A new cucurbitacin, endecaphyllacin C, was isolated from the tubers of Hemsleya endecaphylla. The structure was elucidated as 2β,16α,20β,25-tetrahydroxy-24-acetylaminocucurbita-5-en-3,11,22-trione (1) on the basi...
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Article
Open AccessCucurbitane triterpenoids from Hemsleya penxianensis
Two new cucurbitacins, **fushanencins A (1) and B (2), seven new cucurbitane glycosides, **fushanosides E-K (3–9), along with nine known analogues, were obtained from the tubers of Hemsleya penxianensis. Their ...
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Article
Open AccessTriterpenoid alkaloid derivatives from Buxus rugulosa
Four new triterpenoid alkaloid derivatives, buxrugulines A–D (1–4), together with four known ones (5–8), were isolated from the leaves and stems of Buxus rugulosa. The structures of compounds 1–4 were elucidated ...
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Article
One new pregnane glycoside from the seeds of cultivated Brucea javanica
A new pregnane glycoside, named (20R)-O-(3)-β-D-glucopyranosyl-(1→2)-α-L-arabinopyranosyl-pregn-5-en-3β,20-diol (1), and seven known compounds, brusatol (2), bruceine B (3), bruceine D (4), yadanziolide A (5), br...
