Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1126/science.aak9851 | DOI Listing |
Bioresour Technol
January 2025
Hubei Key Laboratory of Hydroelectric Machinery Design & Maintenance, China Three Gorges University, Yichang 443002, PR China. Electronic address:
Biomass staged gasification technology (BSGT) divides the traditional gasification into medium-temperature devolatilization (MTD) stage, high-temperature gasification (HTG) stage and high-temperature reforming (HTR) stage. The present study conducted MTD and HTG experiments on corn stalks and focused on the effect of MTD at 200-550 °C on the reforming performance of BSGT liquid products through component analysis and simulation. The results demonstrate that the MTD temperature above 350 °C could prevent the participation of phenols and oxygen in HTG and HTR stages, respectively, thereby improving the reforming performance of BSGT liquid products and the quality of BSGT syngas.
View Article and Find Full Text PDFSci Rep
January 2025
School of Resources and Civil Engineering, Northeastern University, Shenyang, 110819, China.
Based on the symmetric initiation mechanism of double-wing cracks in coal rock mass induced by high-pressure electro-recoil water pressure, fracturing experiments have been performed on coal rock mass under different water pressures and discharge conditions using high-voltage electric pulse hydraulic fracturing devices. Combined with CT scans, the crack spatial distribution inside the post-break coal rock mass was analyzed and found that the edge of the water injection hole is prone to produce double-wing cracks along the drilling hole diameter. ABAQUS is used to verify the physical test and extend the test conditions, the geometric parameter change, morphological expansion rule and crack initiation mechanism of double-wing crack in coal rock mass under different discharge conditions and ground stress conditions are studied.
View Article and Find Full Text PDFMikrochim Acta
December 2024
State Collaborative Innovation Center of Coal Work Safety and Clean-Efficiency Utilization, Henan Polytechnic University, Jiaozuo, 454000, China.
A HPU-23@Ru@Tb-NH sensor array with light-driven oxidase-mimicking activity and triple-emission fluorescence was developed. It was composed of a Tb-functionalized metal organic framework and Ru(bpy) and applied to the simultaneous detection of Hg, ClO, and PO via differently responsive channels. HPU-23@Ru@Tb-NH had a photoresponsive colorimetric response toward Hg with a LOD as low as 4.
View Article and Find Full Text PDFWaste Manag
February 2025
Hechi University, Hechi 546300, China. Electronic address:
Sci Rep
November 2024
MOE Key Laboratory of Coal environmental pathopoiesis and control, Shanxi Medial University, Taiyuan, 030001, China.
Background: Impaired cognitive function following exposure to heavy metals has emerged as a significant global health concern. Nevertheless, the impact of combined exposure to multiple heavy metals on cognitive impairment remains unclear.
Objective: This study aimed to explore the association between multiple heavy metals exposure and cognitive function to provide theoretical evidence to guide prevention strategies.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!