Production of Polysaccharides from Angelica sinensis by Microbial Fermentation

Autor: Huan Diao, Heng He, Fang Hua, Zhang Jie Wang, ZiPing Liu, Qiang Tang

Publikováno v: BioResources, Vol 19, Iss 3, Pp 5182-5196 (2024)

Angelica sinensis polysaccharides are important active ingredients and biological resources in traditional Chinese medicine. Properly changing the fermentation conditions of microorganisms may alter the yield of fermentation products. Based on single

Externí odkaz: https://doaj.org/article/4ba4b650573a4bdc92cd8bccb947c8f3

Sliding of coherent twin boundaries

Autor: Zhang-Jie Wang, Qing-Jie Li, Yao Li, Long-Chao Huang, Lei Lu, Ming Dao, Ju Li, Evan Ma, Subra Suresh, Zhi-Wei Shan

Publikováno v: Nature Communications, Vol 8, Iss 1, Pp 1-7 (2017)

Coherent twin boundaries (CTBs) in face-centered cubic metals are usually considered unable to slide at room temperature. Here, the authors use in situ transmission electron microscopy and molecular dynamics to show CTB sliding in copper nanopillars

Externí odkaz: https://doaj.org/article/ced48e98dd094fbd935a2ca331c91c67

Impact of a dense helium-bubble superlattice on the deformation of copper by twinning

Autor: Daryl C. Chrzan, Peter Hosemann, Zhang-Jie Wang, I. S. Winter

Publikováno v: Journal of Nuclear Materials. 508:481-487

Recent experimental work on helium-irradiated single-crystal (SC) and nano-twinned (NT) copper has shown that the formation of a helium bubble superlattice has a dramatic effect on the critical resolved shear stress of twin formation in SC copper pil

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1647c32ec96920e1c79f2bbb04bf98fd
https://doi.org/10.1016/j.jnucmat.2018.05.056

Cyclic deformation leads to defect healing and strengthening of small-volume metal crystals

Autor: Qing-Jie Li, Ming Dao, Ju Li, Yinan Cui, Zhi-Wei Shan, Zhang-Jie Wang, Subra Suresh, Zhuo Zhuang, Zhanli Liu, Jun Sun, Evan Ma

Publikováno v: Proceedings of the National Academy of Sciences. 112:13502-13507

When microscopic and macroscopic specimens of metals are subjected to cyclic loading, the creation, interaction, and accumulation of defects lead to damage, cracking, and failure. Here we demonstrate that when aluminum single crystals of submicromete

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3db7ecc856d692738227a5f1d04179e
https://doi.org/10.1073/pnas.1518200112

Dislocation mechanisms and 3D twin architectures generate exceptional strength-ductility-toughness combination in CrCoNi medium-entropy alloy

Autor: Scott X. Mao, Qian Yu, Ze Zhang, Bernd Gludovatz, Z. Zhang, Robert O. Ritchie, Zhang-Jie Wang, Hongwei Sheng, Easo P. George

Publikováno v: Nature communications, vol 8, iss 1
Nature Communications
Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017)
Zhang, Z; Sheng, H; Wang, Z; Gludovatz, B; Zhang, Z; George, EP; et al.(2017). Dislocation mechanisms and 3D twin architectures generate exceptional strength-ductility-toughness combination in CrCoNi medium-entropy alloy. Nature Communications, 8. doi: 10.1038/ncomms14390. UC Berkeley: Retrieved from: http://www.escholarship.org/uc/item/4fd5x3m9

Combinations of high strength and ductility are hard to attain in metals. Exceptions include materials exhibiting twinning-induced plasticity. To understand how the strength-ductility trade-off can be defeated, we apply in situ, and aberration-correc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a455dee87e78b773a757f9bb80a583f
https://escholarship.org/uc/item/4fd5x3m9