Publications by authors named "Zheng-yang Hu"
Article Synopsis
- Acetylene production from mixed α-olefins offers an eco-friendly method for selectively breaking carbon-carbon (C-C) bonds using Pd(100) surfaces.
- The process involves the thermal cleavage of α-olefins, leading to the formation of acetylene and hydrogen, with high selectivity due to the unique 4-fold hollow sites on the Pd surface.
- A critical challenge is that acetylene tends to remain on the surface; however, using surface alloying with gold (Au) successfully helps release acetylene as a gas, presenting a cost-effective way to produce acetylene and hydrogen.
In this study, a novel multi-walled carbon nanotubes reinforced nanocrystalline copper matrix composite with super high strength and moderate plasticity was synthesized. We successfully overcome the agglomeration problem of the carbon nanotubes and the grain growth problem of the nanocrystalline copper matrix by combined use of the electroless deposition and spark plasma sintering methods. The yield strength of the composite reach up to 692 MPa, which is increased by 2 and 5 times comparing with those of the nanocrystalline and coarse copper, respectively.
View Article and Find Full Text PDF[Protective effect of propofol on liver during ischemia-reperfusion injury in patients undergoing liver surgery].
Zhongguo Wei Zhong Bing Ji Jiu Yi Xue
January 2004
Objective: To explore the protective effect of propofol on liver during hepatic ischemia/reperfusion injury (HIRI) and its mechanisms in patients undergoing liver surgery.
Methods: Eighteen patients who were scheduled for selective hepatic surgery were randomly divided into control group (n=9) and propofol treatment group (n=9). Changes of several parameters in plasma and effects of propofol on them were observed before liver ischemia, at end of ischemia and at reperfusion for 25 minutes, parameters of which included superoxide dismutase (SOD), xanthine oxidase (XO), lipid peroxide (LPO) and alanine aminotransferase (ALT) activity, and the ultrastructure changes in liver tissue were observed under electron microscope at 25 minutes after reperfusion.