407 Result(s)
within
**ng-hua Li
Engineering
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Article
Open AccessExploring the Cation Regulation Mechanism for Interfacial Water Involved in the Hydrogen Evolution Reaction by In Situ Raman Spectroscopy
In situ Raman spectroscopy study of the cation regulation for interfacial water on Au@Pd core–shell nanoparticle surface during hydrogen evolution reaction process.
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Article
Machine learning for prediction of retained austenite fraction and optimization of processing in quenched and partitioned steels
The metastable retained austenite (RA) plays a significant role in the excellent mechanical performance of quenching and partitioning (Q&P) steels, while the volume fraction of RA (
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Article
Selective hydrogen reduction of binary iron-cobalt chlorides
Global demand for cobalt is proliferating with the booming usage and consumption of Li-ion batteries in energy storage applications. With high cobalt content, cobalt white alloy has been an important intermedi...
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Persistent activation of peroxymonosulfate by MoS2@FeOOH/ceramsite composite for continuous flow degradation of sulfamethoxazole
Within the realm of wastewater treatment, the restrictions of inter-particle agglomeration and difficulty in recovery of traditional powder materials greatly limited their large-scale application. Hence, a nov...
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Article
Optimizing thermal performance of a premixed hydrogen/air fueled micro-combustor with baffles
The micro-combustor serves as a critical component in the micro-thermal photovoltaic system (MTPV). In this study, a novel premixed hydrogen/air fueled micro-combustor with baffles was proposed to enhance ther...
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Article
A numerical study based on GBM3D-DEM model: Multi-level force chain analysis in dynamic flexural tensile strength test
The force chain network is the key information of rock materials under loading, which is close to the micro-scale cracking and macroscopic mechanical behavior of rocks. In this paper, a novel 3D grain-based mo...
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A new multi-objective optimization model of multi-layer prestressed lining cavern for compressed air energy storage
Underground multi-layer cavern is a key component in the compressed air energy storage (CAES) engineering and its optimal design is of vital importance for improving the CAES efficiency, while most of the opti...
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Article
Microstructure evolution of 7050 Al alloy fasteners during cold upsetting after equal channel angular pressing
The innovative combination of equal channel angular pressing (ECAP) and cold upsetting (CU) is significant for producing high-strength Al alloy fasteners with ultrafine grains. However, the relationship betwee...
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Study on the Propagation Law of Explosion Shock Waves in Closed Variable-Section Tube Under High-Pressure Environment
The combination of high-pressure air and TNT in shock tubes can effectively simulate real nuclear explosions and conventional weapon explosion shock waves. However, the explosion shock wave parameters are grea...
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Article
Investigation on corrosion behaviors of Mg-Zn-Al-Sn-Mn alloy treated by solution and artificial aging
Hot extrusion, solution, and artificial aging were conducted on the designed Mg-Zn-Al-Sn-Mn alloy. The microstructure evolution and corrosion behaviors of the alloy were studied. A multimodal structure composi...
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Article
Microwave uniformity regulation and its influence on temperature field distribution of composite materials
Microwave heating technology is currently a prominent area of research in the field of composites curing due to its advantages, including selective heating, energy saving and high efficiency. However, the unev...
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Article
Effect of friction stir processing on microstructure and friction and wear properties of as-cast SiCp/ZL101 composites
Friction stir lap welding (FSLW) was used to weld as-cast SiCp/ZL101 composite plate and ZL101 alloy plate to prepare a new brake disc material, and the as-cast SiCp/ZL101 composite plate was modified by friction...
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Article
Water retention behaviours of intact and recompacted loess exposed to multiple wetting-drying cycles
Wetting-drying cycles of weathering loading frequently lead to failure of infrastructures in loess regions, China. Water retention behaviours of loess are key information for capturing the physical causes of l...
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Dynamic recrystallization behavior and coincidence site lattice evolution in thermal deformation of 316H stainless steel used in nuclear systems
The hot deformation behavior of 316H stainless steel used in the 4th-generation nuclear systems was investigated by thermal compression tests at 1000–1150 °C and 0.01–10 s−1. It was found that true stress firstly...
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Article
Open AccessDeep learning enables parallel camera with enhanced- resolution and computational zoom imaging
High performance imaging in parallel cameras is a worldwide challenge in computational optics studies. However, the existing solutions are suffering from a fundamental contradiction between the field of view (...
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Valuable metals substance flow analysis in high-pressure acid leaching process of laterites
Substance flow analysis (SFA), an analytical tool, was applied to a high-pressure acid leaching (HPAL) process of laterites. The results show that although the HPAL process has become the mainstream process fo...
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Numerical simulation on mechanisms of dense drilling for weakening roofs and its application in roof control
This study proposed a method of dense drilling that could induce the formation of a discontinuous surface to weaken the roof. According to the geological conditions of the Chahasu coal mine, a PFC2D numerical mod...
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Article
Flow field, heat transfer and inclusion behavior in a round bloom mold under effect of a swirling flow submerged entry nozzle
Flow field, heat transfer and inclusion behavior in a 700 mm round bloom mold under the effect of a swirling flow submerged entry nozzle (SEN) were investigated with the aim to enhance the casting process. The...
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Article
Fixed-Time Fuzzy Adaptive Tracking Control for High-Order Systems with Unknown Nonlinearities and Control Directions
This paper presents a fixed-time tracking controller for a class of high-order nonlinear systems with completely unknown nonlinearities and unknown control directions. To perform the high-order practical track...
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Effect of heat treatment on hot deformation behavior and microstructure evolution of 2195 Al-Li alloy
2195 aluminum-lithium alloy has numerous applications in industrial production, and the different initial heat treatment state impacts its hot deformation behavior. Therefore, this work seeks to examine the im...
