A5061489276- Advanced ceramic materials synthesis
- Advanced materials and composites
- Catalytic C–H Functionalization Methods
- Synthesis and Catalytic Reactions
- Aluminum Alloys Composites Properties
- Intracranial Aneurysms: Treatment and Complications
- Diamond and Carbon-based Materials Research
- Ferroelectric and Piezoelectric Materials
- Cerebrovascular and Carotid Artery Diseases
- Moyamoya disease diagnosis and treatment
- Dielectric materials and actuators
- Semiconductor materials and devices
- High-Velocity Impact and Material Behavior
- Glass properties and applications
- Oxidative Organic Chemistry Reactions
- Traditional Chinese Medicine Analysis
- Synthesis and Biological Evaluation
- Radiomics and Machine Learning in Medical Imaging
- Blind Source Separation Techniques
- High voltage insulation and dielectric phenomena
- Natural product bioactivities and synthesis
- Peptidase Inhibition and Analysis
- Silicon Carbide Semiconductor Technologies
- Advanced Surface Polishing Techniques
- Advanced Algorithms and Applications
Qingdao University of Technology
2018-2024
Chengdu Technological University
2018-2024
University of Science and Technology Beijing
2013-2023
Henan University of Technology
2023
Dalian Medical University
2019-2021
Shanghai Ocean University
2020-2021
Dalian Municipal Central Hospital
2013-2021
Northwestern Polytechnical University
2014-2020
Jiangxi University of Traditional Chinese Medicine
2019
82th Hospital of Pla
2014
Monofluorination of 2-arylbenzo[d]oxazinones with N-fluorobenzenesulfonimide (NFSI) was achieved by palladium catalysis in moderate to good yields. Promoted nitrate, the reaction provides an economic and environmentally friendly strategy. The synthesis monofluorinated has compatibility many common functional groups. plausible mechanism this monofluorination is discussed.
In this study, work on modelling uncertainty in the tensile properties of two-dimensional plain woven silicon carbide fibre-reinforced matrix (2D SiC/SiC) composite and B-basis values strength was carried out following four aspects. First, law formation mechanism 2D SiC/SiC composites were researched through microstructural analysis. Subsequently, three distribution function models established for with Weibull, normal, log-normal functions. The development functional based 30 groups valid...
We studied the electric conductivity and structure of polymer‐derived carbon‐rich amorphous SiC pyrolyzed at different temperatures. The material increased drastically with pyrolysis temperature followed an Arrhenius relationship activation energy ~3.4 eV. Raman X‐ray photoelectron spectroscopy analysis revealed that order free carbon phase temperature, accompanied by sp 3 → 2 transition. for such a change was 3.1–3.8 eV, which is close to change. thus believe increase in mainly due phase.
The detailed structural evolutions in polycarbosilane-derived carbon-rich amorphous SiC were investigated semiquantitatively by combining experimental and analytical methods. It is revealed that the material comprised of a Si-containing matrix phase free-carbon phase. amorphous, SiC4 tetrahedra, SiCxOx-4 Si-C-C-Si/Si-C-H defects. With increasing pyrolysis temperature, becomes more ordered, accompanied transition from SiC2O2 to SiCO3. was completed at 1250 °C, where started crystallize...
Abstract A simple 8‐quinolinecarboxaldehyde derived antipyrine Schiff base ( QA ) was synthesized and characterized, which exhibited high selectivity to Cr 3+ over other metal cations. The recognition of could be achieved by means fluorescense absorption spectra, moreover, the obvious color change from colorless yellowish is easily observed naked‐eyes. binding constant evaluated spectral titration model in 1:1 stoichiometry measured Job's plot.
The electronic structure of polymer‐derived amorphous silicon carbide pyrolyzed at different temperatures was investigated by combining measurements their temperature‐dependent conductivity and optical absorption. By comparing the experimental results with theoretical models, parameters such as conduction band, band‐tail, defect energy, Fermi energy were determined. revealed that band gap band‐tail width decreased increasing pyrolysis temperature. Furthermore, it found electrons transport...
Direct C–H amidation of azine with sulfonamide was developed for the first time. The reactions proceeded smoothly under benign conditions and gave corresponding products high selectivity. This approach shows regioselectivity, wide substrate scope, functional group tolerance. Additionally, this transformation can also be scaled up to gram level. strategy allows direct preparation ortho-sulfonamide-substituted ketone products, thus providing a good complement previous amidation.
Abstract Less lipophilic and better water soluble tariquidar analogues were synthesised from one central anthranilic acid derived building block by Cu I ‐catalysed N/O–arylation reactions. The compounds tested for their inhibitory activity against the ABCB1 transporter in a flow cytometric calcein‐AM efflux assay. A correlation between calculated log P values activities was observed, with more being as potent reference substance tariquidar.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451...
Chemical investigation of the roots Ligularia sagitta has resulted in characterization six eremophilenolides 6β,8β-dimethoxy-10β-hydroxyeremophil-7(11)-en-12,8α-olide (1), 6β-angeloyloxy-10β-hydroxy-8β-methoxyeremophil-7(11)-en-12,8α-olide (2), 6β-(2′-methylbutanoyloxy)-10β-hydroxy-8β-methoxyeremophil-7(11)-en-12,8α-olide (3), 6β-angeloyloxy-10β-hydroxy-8α-methoxyeremophil-7(11)-en-12,8β-olide (4), 6β-(2′-methylbutanoyloxy)-10β-hydroxy-8α-methoxyeremophil-7(11)-en-12,8β-olide (5) and...
The electronic structure of polymer-derived amorphous silicon carbide ceramics was studied by combining measurements temperature-dependent conductivity and optical absorption. By comparing the experimental results to theoretical models, constructed for a carbon-rich carbide, which revealed several unique features, such as deep defect energy level, wide band-tail band, overlap between band level. These features were discussed in terms microstructure material used explain electric behavior.