976 Result(s)
-
Article
Cationic Effects of Calcium, Ferrous and Magnesium on Dephosphorization Ability of CaO-SiO2-FeO-MgO Slag System
Designing an appropriate composition of dephosphorization slag is crucial for effectively reducing phosphorus content in steels and facilitating the development of high-quality steel products. In this study, w...
-
Article
Elemental Distribution Modification Toward Target Calcium Roasting of Vanadium-Bearing Slags
The elemental distributions among various phases in vanadium-bearing slags have been quantified toward high-efficiency separation and extraction by calcium roasting using electron probe X-ray microanalysis. Th...
-
Article
Clean and Efficient Recovery of Valuable Metals from Bismuth Sulfide Concentrate by Low-Temperature Alkaline Smelting
The traditional bismuth sulfide concentrate smelting process had the problems of low direct recovery rate of metallic bismuth, low extraction rate of associated valuable metal elements, and SO2 flue gas pollution...
-
Article
Assessing the range of blasting-induced cracks in the surrounding rock of deeply buried tunnels based on the unified strength theory
Blasting-induced cracks in the rock surrounding deeply buried tunnels can result in water gushing and rock mass collapse, posing significant safety risks. However, previous theoretical studies on the range of ...
-
Article
Application of optimized random forest regressors in predicting the maximum principal stress of aseismic tunnel lining
Using flexible dam** technology to improve tunnel lining structure is an emerging method to resist earthquake disasters, and several methods have been explored to predict mechanical response of tunnel lining...
-
Article
Influence of pier height on the safety of trains running on high-speed railway bridges during earthquakes
Sudden earthquakes pose a threat to the running safety of trains on high-speed railway bridges, and the stiffness of piers is one of the factors affecting the dynamic response of train-track-bridge system. In ...
-
Article
Research Status of High-Manganese High-Aluminum Steel and Key Points of Continuous Casting
Fe-Mn-Al-C high-manganese and high-aluminum (high-Mn and high-Al) steel has the characteristics of high strength at room temperature and low temperature, good fatigue performance, high elongation, and good ene...
-
Article
Fabrication of Porous Zn Alloy Scaffolds Coated with Hydrophobic Film and Their In Vitro Biodegradation Properties
Porous Zn scaffold, as a novel biodegradable metallic material, has emerged as a promising candidate for biomedical applications. In this paper, by using carbamide particles as the pore-making agent and Zn and...
-
Article
Research progress of permanent ferrite magnet materials
Permanent ferrite magnet materials are extensively employed due to their exceptional magnetic properties and cost-effectiveness. The fast development in electromobile and household appliance industries contrib...
-
Article
Corrosion Mechanism of Alumina-Chromia Refractory by SiO2-Al2O3-CaO Based Slag from Iron Capture Process of Spent Automotive Catalyst
Metal smelting-collecting processes have been widely recognized as the prior technology for recycling spent automotive catalysts (SACs), which are generally accompanied by the formation of high content of alum...
-
Article
Mechanism development of strength contributed by CPB with rice husk ash
Rice husk ash (RHA) is currently utilized as a supplementary cementitious material in cement products due to its pozzolanic properties. This study aims to investigate the pozzolanic effect (PE) and filler effe...
-
Article
Rare earth modified reduced graphene oxide reinforced AgCuTi composite brazing filler for brazing C/C composites
In order to solve the formation of brittle compounds in brazed joints, an innovative rare earth modified reduced graphene oxide reinforced AgCuTi composite brazing filler was designed to achieve brazed joints ...
-
Article
Comparative thermodynamic analysis of gold dissolution in four organic carboxylic acid-catalyzed thiosulfate systems using Eh–pH and species distribution diagrams
The non-ammonia thiosulfate leaching system is considered to be an attractive and eco-friendly route for gold leaching without the usage of cyanide or ammonia. In this paper, the role of four organic carboxyli...
-
Article
Material Formulation of Strontium Ferrite Permanent Magnets from Phase Diagrams and Microstructures
Ferrite permanent magnets use iron oxide, a by-product of iron-making that constitutes 90 wt.% of their primary raw material. In addition, 100% of waste ferrite magnets can be recycled into new magnets after c...
-
Article
Adsorption of Cr(VI) on calcined MgAl-layered double hydroxides and recycling of spent adsorbents for the removal of organic dyes
Adsorption is considered an effective strategy for removing Cr(VI) from wastewater, but disposal of spent adsorbents is still a thorny problem. This work aims to develop an efficient adsorbent for Cr(VI) remov...
-
Article
Synthesis of foamed geopolymers by substituting fly ash with tailing slurry for the highly efficient removal of heavy metal contaminants: Behavioral and mechanistic studies
This study aimed to synthesize porous geopolymers from tailing slurry, a byproduct of bauxite mining, for use as potential materials for groundwater remediation. The effects of various factors, such as foaming...
-
Article
Soil microbial community in lead smelting area and the role of sulfur-oxidizing bacteria
The long-term operation of the lead smelter has brought serious heavy metal pollution to the surrounding soil. The microbial community structure and composition of heavy metal contaminated soil is important fo...
-
Article
Chromium stabilization by polysulfide supported nZVI@biochar in contaminated soil: Cr bioavailability and stabilization mechanism
Chromium (Cr) contamination in soil is one of the most severe environmental issues, which poses significant health hazards to humans. In this study, the stabilization mechanism of Cr-contaminated soil by polys...
-
Article
Heavy metal pollution and ecological risk assessment: A study on Linli County soils based on self-organizing map and positive factorization approaches
This study analyzed the pollution level, distribution, sources, and ecological impact of six heavy metals (As, Cd, Cr, Cu, Zn and Pb) in soil from Linli County, China. The concentration analysis showed that th...
-
Article
Enhancing cadmium biosorption capacity in E. coli through heterologous expression of metal-chelating proteins: Insights into bioremediation potential and mechanisms
Cadmium (Cd) is a biologically non-essential and toxic heavy metal that enters the environment through natural emissions or anthropogenic activities, posing threats to human health. The efficient expression of...
