Publications by authors named "Jian-Fen Li"
Waste sediment generated during tunnel construction is applied to prepare synchronous grouting material, where the influences of fly ash, slag powder, and bentonite on the rheological properties (such as consistency, fluidity, setting time, drainage rate, and stone rate) are studied. The results show that adding fly ash content increases the initial consistency, setting time, and fluidity of grouting material, but also increases its drainage rate and decreases its stone rate. The addition of slag powder results in a slight increase in the setting time and fluidity of the grouting material, yet a decrease in the initial consistency value.
View Article and Find Full Text PDF[Molluscicidal effect of simple black film mulching in mountainous areas of Yunnan Province].
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
June 2014
Article Synopsis
- The study assessed how effective black plastic mulching is at killing snails in Yunnan Province's mountainous regions.
- Four experimental groups used varying durations of black plastic mulching, while a control group used a traditional chemical method for comparison.
- Results showed that after 90 and 120 days of mulching, no snails were found in those groups, indicating a 100% decrease in snail density, with costs being comparable to the control method.
We utilized the strategy of 'borrowing SERS activity', by chemically coating several atomic layers of a Pt-group metal on highly SERS-active Au nanoparticles, to obtain the first SERS (also Raman) spectra of surface water on Pt and Pd metals, and propose conceptual models for water adsorbed on Pt and Pd metal surfaces.
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