A5100625078- Microstructure and Mechanical Properties of Steels
- Metallurgy and Material Forming
- Advanced oxidation water treatment
- Advanced Photocatalysis Techniques
- Chemical Synthesis and Reactions
- Catalytic C–H Functionalization Methods
- Microstructure and mechanical properties
- Synthesis and Catalytic Reactions
- Agricultural Engineering and Mechanization
- Industrial Gas Emission Control
- Metal Alloys Wear and Properties
- Asymmetric Hydrogenation and Catalysis
- Oxidative Organic Chemistry Reactions
- Metal and Thin Film Mechanics
- Soil Mechanics and Vehicle Dynamics
- Non-Destructive Testing Techniques
- Advanced Materials Characterization Techniques
- Rock Mechanics and Modeling
- Soil Management and Crop Yield
- Hydrogen embrittlement and corrosion behaviors in metals
- Surface Roughness and Optical Measurements
- Adenosine and Purinergic Signaling
- Granular flow and fluidized beds
- Welding Techniques and Residual Stresses
- Extraction and Separation Processes
Tianjin University
2024
China Coal Research Institute (China)
2024
Henan Normal University
2024
East China Normal University
2020-2024
Zhengzhou University
2022-2024
Anyang Institute of Technology
2021-2022
Max-Planck-Institut für Nachhaltige Materialien
2014-2020
Aluminum Corporation of China (China)
2020
University of Science and Technology of China
2015-2019
Duke University
2019
Fatigue failures create enormous risks for all engineered structures, as well human lives, motivating large safety factors in design and, thus, inefficient use of resources. Inspired by the excellent fracture toughness bone, we explored fatigue resistance metastability-assisted multiphase steels. We show here that when steel microstructures are hierarchical and laminated, similar to substructure superior crack can be realized. Our results reveal tuning interface structure, distribution,...
In situ growth of nanostructures on substrates is a strategy for designing highly efficient catalytic materials. Herein, multimetallic CuCoNi oxide nanowires are synthesized in three-dimensional nickel foam (NF) substrate (CuCoNi–NF) by hydrothermal method and applied to peroxydisulfate (PDS) activation as immobilized catalysts. The performance CuCoNi–NF evaluated through the degradation organic pollutants such bisphenol A (BPA) practical wastewater. results indicate that NF not only plays...
The selective removal of targeted pollutants from complex wastewater is challenging. Herein, a novel persulfate (PS)-based advanced oxidation system equipped with series two-dimensional (2D) bimetallic oxide nanosheets (NSs) catalysts developed to selectively degrade bisphenol A (BPA) within mixed via initiating nonradical-induced polymerization. Results indicate that the Ni0.60Co0.40Ox NSs demonstrate highest catalytic efficiency among all Ni-Co catalysts. Specifically, BPA degradation rate...
A transition-metal-free deacylative C(sp3)–C(sp2) bond cleavage for the synthetically practical oxidative amination of ketones and aldehydes to nitriles is first described, using cheap commercially abundant NaNO2 as oxidant nitrogen source. Various bearing aryl, heteroaryl, alkyl, alkenyl groups could be smoothly obtained from in high yields, avoiding highly toxic cyanides or transition metals.
An aldehyde-selective aerobic Wacker-Tsuji oxidation is developed. Using tert-butyl nitrite as a simple organic redox cocatalyst instead of copper or silver salts, variety aldehydes were achieved major products in up to 30/1 regioselectivity well good high yields at room temperature.
Synthesis of linear α,β-unsaturated aldehydes via a room-temperature oxidative dehydrogenation has been realized by the cocatalysis an organic nitrite and palladium with molecular oxygen as sole clean oxidant. Linear could be efficiently prepared under aerobic catalytic conditions directly from corresponding saturated aldehydes. Besides products, aromatic analogy also smoothly achieved same standard method. The redox cocatalyst alcohol solvent play key role for realizing this
(<italic>E</italic>)-Specific direct Julia-olefination of aryl alcohols promoted by bases: a strategy self-hydride transferring redox process.
The seed filling of a seed-metering device is critical process in sugarcane cultivation operations. To analyze the contact between billets, related mechanical components, and law billets movement device, simulation seed-filling based on EDEM was proposed, geometric model particle model, were established by software. physical experimental results angle repose compared. showed that relative error experiment 6.67%, which verified effectiveness material parameters single-bud billet; linear...
Highly efficient transition-metal-free radical oxychlorination of alkenyl oximes with <italic>t</italic>-BuONO has been developed.
A transition metal-free radical process for the selective α,β-dehydrogenation of saturated amides under mild conditions is developed. Utilizing activation strategy, challenging issue associated with low α-acidity resolved. For first time, α,β-unsaturated Weinreb and acrylamides could be efficiently prepared directly from corresponding amides. Mechanistic studies confirm nature this transformation. Two gram scale have also been performed to demonstrate utility method.
A scalable and practical synthesis of functionalized indoles via Pd-tBuONO cocatalyzed aerobic cycloisomerization o-allylanilines is reported. Using molecular oxygen as a terminal oxidant, series substituted were prepared in moderate to good yields. The avoidance hazardous oxidants, heavy-metal cocatalysts, high boiling point solvents such DMF DMSO enables this method be applied pharmaceutical synthesis. gram-scale indomethacin demonstrates its application potential.
Abstract In this paper, the ASTM grain size number of aluminium alloy specimen was determined respectively by Abrams Three-Circle Procedure and Planimetric E112-13 Standard, uncertainty result evaluated. The results are as follows: 1) Using determines G, G=4.13, U=0.26, k=2; G=3.94, U=0.15, k=2. 2) It is suggested that E112 standard should provide errors counting boundary intersection count or grains be less than equal to 2, ruler diameter test circle scale length with 0.10 mm. On condition,...
A CuSO4-catalyzed tandem benzylic C-H insertion cyclization of toluene derivatives and isonitriles is described. The naturally abundant salt CuSO4 serves as a low-cost ligand-free redox catalyst. This reaction provides practical modular synthesis N-aryl indoles from isonitriles.